Proceedings for the joint

9th CIGRE Southern Africa Regional Conference

& CIGRE B4 International Colloquium, 2019

1 – 5 October 2019

Misty Hills Hotel, Muldersdrift

www.cigresa.org.za

Published by CIGRE Southern Africa National Committee

ISBN 978-0-620-86026-0

On behalf of the local CIGRE conference organising committee,I would like to welcome you to the Joint 9th CIGRE Southern Africa Regional Conference and CIGRE B4 International Colloquium.

The papers that will be presented at this event cover several topics such as battery storage,

microgrids, HVDC and FACTS, impacts on markets and regulations. We have made sure there

is something for everyone in the power industry at this conference, with other sessions

covering topics such as power transformers and overhead lines.

We received up to 140 abstracts for this joint session. Our technical review team narrowed

those down to the 78 peer reviewed papers that will be presented at this conference. We

would like to thank the members of the review panel for their efforts in reviewing the

abstracts and full papers thoroughly and timeously.

We are particularly pleased with the speaker line up at this conference, with addresses from

Dr Rob Stephen the President of CIGRE, Dr Mohamed Rashwan, Chair of CIGRE Study

Committee B4, and Dr Yusheng Xue, Honorary President of State Grid Electric Power

Research Institute, as opening and keynote addresses. We are also privileged to host the

inaugural event for the Women in Engineering for CIGRE Southern Africa.

This joint session would not be possible without the support from sponsors. We would

like to thank Revive Electrical Transformers, Nynas, Mace Technologies ABB, Terratech and

Amplitude Consultants for their generous financial support.

There is an exhibition and several technical tours, where delegates are sure to find

something of interest. You will also enjoy the social events that have been organized to

make sure you network with colleagues and make new connections. We have arranged

tutorials that offer an excellent opportunity to delve further into topics relevant to

today’s electricity industry.

I warmly welcome you to make the most of this event

in all its facets and, if you are from outside of South Africa,

to make the most of the unique culture that the

City of Johannesburg and its surrounds have to offer.

Sharon Mushabe

Local Organising Committee

Technical Committee

Reviewers

Sharon Mushabe

Khayakazi Dioka

Thomas Magg

Thavenesen Govendar

Andreas Beutel

Anelja de Bok

Matankiso Mohlokoana

General Chair

Technical Chair Regional

Technical Chair SC B4

Tutorials SC B4

Tutorials Regional

Secretariat and Logistics

Technical Tours

Khayakazi Dioka

Thomas Magg Serala

Sharon Mushabe

Thavenesen Govender

Nombuso Ramaite

Eskom

Power Consulting

Eskom

Eskom

Linothe

Johannesburg

Johannesburg

Johannesburg

Johannesburg

Johannesburg

Khayakazi Dioka

Thomas Magg

Thavenesen Govender

Nombuso Ramaite

Andreas Beutel

Chris de Kock

Mpho Maine

Pamela Ijumba-Kamera

Jarrad Wright

Kurt Dedekind

Mluleki Hlatshwayo

Sidwell Mtetwa

Sharon Mushabe

Nhlanhla Mbuli

Paul Keller

Eskom

Serala Power Consulting

Eskom

Linothe

Eskom

ABB

ABB

Energy System Planning

CSIR

Eskom

SGB Smit PM

Eskom

Eskom

Eskom

Eskom

Johannesburg

Johannesburg

Johannesburg

Johannesburg

Johannesburg

Johannesburg

Johannesburg

Johannesburg

Pretoria

Durban

Johannesburg

Johannesburg

Johannesburg

Johannesburg

Johannesburg

CIGRE SA 2019 Review Process

Authors were invited to submit abstracts. Each abstract was peer reviewed by at least

two reviewers. Authors were not aware of who reviewed their papers. Once the abstract

was accepted, authors were asked to submit full papers for consideration for presentation

at the conference.

The full papers were reviewed again by at least two reviewers to determine the value of the

submission for presentation at the conference. Paper acceptance, reviewer comments

and/or paper rejections were then communicated to the authors.

A summary of the papers is as follows:

140 abstracts were submitted for initial consideration.

A review process was completed by 15 reviewers.

78 papers were accepted as peer-reviewed papers for presentation at the conference.

Disclaimer

Authors are responsible for the content in their papers.

Message from the CIGRE SA Chairman

The National Committee of CIGRE Southern Africa is honoured to host its 9th Regional conference at the picturesque Misty Hills venue outside Johannesburg.

This event will be hosted together with the SC B4 International Colloquium on HVDC and FACTS

for Regional Interconnections and Renewable Energy Integration. This year’s theme is "Sustain-

able Integration of Distributed Energy Resources for Power System Development". The program

includes one day of tutorials and two days of discussions, paper presentation and an exhibition.

There is also a day of technical tours following the conference.

This event presents an opportunity to showcase new research, present new experiences with

emerging technologies, highlight regional challenges (and solutions to those challenges) and

network with industry peers. We welcome delegates and exhibitors from the region and from

around the globe to attend this prestigious event.

I encourage delegates to join in discussions, debates and the sharing of ideas and to ask as many

questions as possible – during presentations or over lunch or tea. There will also be many oppor-

tunities to network during various other events such as the cocktail function and conference

dinner.

I warmly welcome you!

Prince Moyo

Message from the CIGRE President

It gives me great pleasure to welcome you to the 2019 CIGRE conference in Johannesburg, South

Africa. This conference was first held in Swaziland in the early 1990’s. It was initially held every

4 years and later every 2 years. This is the ninth CIGRE conference in South Africa.

This conference is enhanced by the support and visit of Study Committee B4 dealing with power

electronics and DC systems at all voltages. This is very pertinent today with the advent of solar

and wind generation requiring inverters to link to the grid at all voltages. The cost of HVDC

systems has also been reducing in recent times with voltage sourced converters now capable of

transferring 2000MW. This conference, with the theme “Sustainable integration of distributed

energy resources for power system development”, covers the essence of issues facing the indus-

try at present. In addition, it highlights the fact that CIGRE is indeed an “end to end” association

covering all voltage levels from Low to Ultra High Voltage.

One of the main benefits of this symposium is that it with links to SC B4 and associated working

groups. This provides an excellent opportunity to meet with international experts and discuss

issues that are pertinent to you.

As you no doubt realize, a CIGRE conference such as this offers far more for delegates than the

average conference presenting papers. With the CIGRE experts attending the conference, be

assured that there is someone that has solved the problems you have, is working on the problem,

or is aware of others working on the problem. I would urge you as delegates to engage with fellow

CIGRE colleagues and obtain the maximum benefit from the Symposium.

I wish you a very successful and fruitful time in my beautiful country

Dr Rob Stephen

Message from the CIGRE SC B4 Chair

The global electric power system is changing rapidly. We still need the technologies for long

distance UHV transmission, but we also need the innovative solutions to integrate renewable

energy sources such as wind on shore and off shore as well as solar. These changes in the power

system are increasing the demand for dc transmission projects and power electronic equipment.

Not only traditional solutions are necessary, but more innovative solutions in both dc and power

electronics are necessary. For instance, the retirement of traditional fossil based generation

located near load centers and opting for renewable energy resources that are transmitted to the

load centers utilizing dc certainly is an issue that creates new challenges that need to be under-

stood.

Within CIGRE, Study Committee B4 is responsible for DC and Power Electronics. The South African

National Committee kindly invited study committee B4 to hold the annual study committee meet-

ing, and working group meetings in South Africa. The study committee meeting will be held on

September 30th. Nine working groups are also meeting between September 28 and 29.

Study committee B4 is honored to share a two day colloquium with CIGRE South African Regional

conference.

On behalf of Study Committee B4, I would like to thank the South Africa National Committee for

the kind invitation and I would encourage our colleagues from Africa to attend and participate in

CIGRE and certainly in study committee B4 activities. Having the meetings in South Africa is a

great opportunity for the SC B4 members to learn about the needs and the challenges in the

African electricity sector as well as exchange their valuable experience and knowledge with the

engineering community in Africa.

Dr. Mohamed Rashwan

PART 1: SC B4 International Colloquium

SESSION 1: Network Stability

1.1

1.2

1.3

1.4

1.5

1.6

#2 Real-time Modelling and Simulation of a Multi-terminal Hybrid UHVDCTransmission SystemHong Rao, Wenming Gong and Zhe Zhu

#11 Real-time simulation and analysis of phase shifting transformer for improvement of Tomsk power system transient stabilitySergey Stavitsky, Aleksey Suvorov, Alexandr Gusev, Mikhail Andreev, Nikolay Ruban, Ruslan

Ufa, Anton Kievec, Alisher Askarov, Igor Razzhivin, Yuly Bay and Olga Suslova

#18 Using a Series Blocking Reactor to Reduce Harmonic Filtering Requirements and Losses in Static VAr Compensators:Tauá SVC ExperienceManfredo Lima

#19 Temporary DC Fault Clearing Sequence in a HVDC System with Voltage Source Converter and Overhead LineKanstantsin Fadzeyeu, Jan G. Johannesson and Peter Lundberg

#27 Minimizing Loss of Transmitted Power by VSC during Overhead Line FaultPaulo Max Maciel Portugal, Dennis Woodford, Edson Hirokazu Watanabe and José Rafael Lebre

#30 Simulation Research on the Effect of Combination Modification of HVDC and STATCOM on the Stability of DC System in Weak AC NetworksYun Hu, Qi Guo, Kaijian Ou, Libin Huang and Shuyong Li

SESSION 2: Renewable Energy

2.1

2.2

2.3

2.4

#3 Design and Operational Experience of the World’s First Three-terminal VSC HVDC system (Nan’ao MTDC) for Wind Power Integration and its Upgrade with DCCBsShukai Xu, Jun Chen, Wei Luo, Tao Chen and Daoqing Fan

#7 Regional HVDC Interconnection and its Impact on Network PerformanceZia Emin, Ramesh Hariharan and Ranil Desilva

#17 Impact of Integration of Large Amount of Renewable Generation near Existing HVDC TerminalsHiranya Suriyaarachchi, Janath Geeganage and Chandana Karawita

#21 Increasing Bulk Power Transfer of Renewable Generation with Modular FACTSto Lower Wholesale Costs to ConsumersAndrew Kingsmill, Hugo Klingenberg, Jacqueline Bridge, Brendan Kelly and Paul Harrington

DAY 1

Index

PART 1: SC B4 International Colloquium

SESSION 3: LVDC and MVDC distribution and microgrids, Distributed FACTS devices, Synthetic inertia, HVDC Insulation

3.1

3.2

3.3

3.4

#26 Control Schemes for Multi-terminal Medium Voltage DC Distribution NetworkPatrobers Simiyu, Ai Xin, Vedaste Ndayishimiye, Izael Pereira Da Silva, Lawrence Bibaya,

Giovanni Dushimimana and Salman Salman

#29 Performance of a VSC with Energy Storage Capability Compared to VirtualSynchronous Machine Control Strategy in Weak GridsMalsha Annakkage, Chandana Karawita, Hiranya Suriyaarachchi, Udaya Annakkage

and Kasun Samarasekera

#13 Pollution mapping methodology for selection of external insulation of HV DC and HV AC electric transmissionLev Vladimirskii

#97 Leakage current monitoring on in-service composite and glass insulators of the Cahora Bassa HVDC transmission lineNishanth Parus, Matimba Mathebula, Morne Roman, Nishal Mahatho, Lerato Motsei

and Robert Van Zyl

DAY 1 (Cont.)

PART 1: SC B4 International Colloquium

SESSION 4: HVDC Reliability, Refurbishment and upgrades ofHVDC and FACTS installations

4.1

4.2

4.3

4.4

#1 Future Proofing HVDC SystemsNarinder Dhaliwal and Murray Bennett

#28 Improving HVDC system reliabilityPatrik Lindblad, Tuomas Rauhala, Manuel Aguado, Renaud Rossetti, Kristof Geens, Arjan van

Schijndel, Lukas Jacikas, Aitor Hernandez, Kjell Hertzberg, Gert-Ove Persson and Lena Robitzky

#34 Use of HVDC reliability and availability data in power system analysis - approaches, challenges and opportunitiesTuomas Rauhala and Patrik Lindblad

#91 Parallel Operation Of The Two Poles On One Dc Line In The Inga-Kolwezi Hvdc SchemeIrma Emmanuel Lubini, Mike Lumbala, Gerard Kande, Mpukur Christian Lubini and Ove Gavell

SESSION 5: HVDC and FACTS Equipment and Technology

5.1

5.2

5.3

5.4

5.5

#5 Failure mode analysis of Hybrid DC Circuit BreakerDragan Jovcic, Mohammad Azizian Fard and Mario Zaja

#22 Loss Optimized Design of Air-core ReactorsAlexander Gaun, Bernhard Fröhlich and Alex Grisenti

#31 Requirements for functional testing of HVDC protection IEDsGeraint Chaffey, Ilka Jahn, Rick Loenders, Willem Leterme, Mian Wang, Firew Zerihun Dejene,

Staffan Norrga and Dirk Van Hertem

#36Parallel connection of IGBT devices in VSC for HVDCJ. Dorn, M. Beuermann, R. Ermisch, H. Gambach, P. Maisel, F. Schremmer and M. Wahle

#80 Modelling, testing and evaluation of HVDC equipment- HVDC Converters, DC Breakers, DC TransformersNgoni Gwatidzo and Prof I.E. Davidson

DAY 2

PART 2: Regional Conference

SESSION 1: Battery Energy Storage Systems Applications

1.1

1.2

1.3

1.4

1.5

1.6

#139 Eskom experience on battery energy storage systems: The network planning perspectiveMonde Soni and Preshaan Jaglal

#140 Detailed methodology to precisely assess the need for battery systems to solve congestions in the Turkish Transmission GridXavier Epiard, Claire Munet, Nuno Marinho, Merden YeŞİl, Ümit Çetİnkaya and Ceyhun Cengİz

#46 Electrification of Africa: Future prospects of the Provision of Ancillary Services in the WAPP system using the Battery Storage facilities of the Mini-gridsAndrea Mansoldo, Xavier Vallve, Franklin Gbedey, Chong Song, Gemma Dsilva, Diego Perez,

Saroj Mahapatra and Siengui Ki

#45 Challenges and Opportunities of Battery Storage in the WAPP Interconnected HV gridAndrea Mansoldo, Chong Song, Franklin Gbedey, Gemma Dsilva, Saroj Mahapatra, Siengui Ki

and Rianne Hoen

#38 Studies to determine optimal battery storage for increasing variable renewable energy penetration on 8 Pacific IslandsGraeme Chown

# 88 Microgrid / Battery Energy Storage Systems value stacking to defer distribution capacity upgrades for Radial FeedersChristopher de Kock, Ravin Singh, Hamideh Bitaraf and Britta Buchholz

DAY 1

PART 2: Regional Conference

SESSION 2: Power system operation and control

2.1

2.2

2.3

2.4

2.5

2.6

#116 High Penetration Of Inverter Based Generation: Factors to consider when conducting frequency studiesTeboho Machabe, Thabo Modisane, Musa Gumede, Bruce Siavhe, Marathon Ntusi and Mike Nene

#93 The Advantages of PMU Data Analytics in Power Systems with High RenewableEnergy PenetrationTeboho Machabe, Thabo Modisane, Marathon Ntusi, Mike Nene and Bruce Siavhe

#124 Challenges of operating a power system with integrated renewable energygeneration: A case studyBongane Nhlapo, Paul Davel, Ronald Marais and Kehinde Awodele

#128 Constraining the intermittency of wind and photovoltaic systems through curtailmentNdamulelo Mararakanye and Bernard Bekker

#65 Managing flexibility in power system planning: Modelling and cases of studyAndrea Mansoldo, Ashutosh Sharma, Sukant Bhattacharya, L'Abbate Angelo, Cazzol Vittoria and

Gemma Dsilva

#100 Exploiting Cascade Failure for the Calibration of Planning Assumptions and Operational ImprovementMachiel Viljoen and Jan A de Kock

SESSION 3: Integration of Distributed Energy Resources and Microgrids

3.1

3.2

3.3

3.4

3.5

#96 Emerging Regulatory Requirements for Small Modular Nuclear Reactorsin Distributed Electrical SystemsPat Naidoo, Simon Connell, Dave Nicholls and Anthonie Cilliers

#105 Engineering Small Modular Nuclear Reactors for Micro and Nano Grid Application:The Case Study Based on NASA's 10 kilowatt unitPat Naidoo, Simon Connell, Dave Nicholls and Anthonie Cilliers

#37 Integration of PV installations within grids: Impacts and solutionsQuoc Tuan Tran

#103 Evaluation and Impact Assesment of Solar Roof-Top PV on Electric Power Distribution NetworksRodney Reddy, Innocent E Davidson and Dayahalen Chetty

#50 Virtual Synchronous Generator-Based Control in Power Systems; OverviewPatrobers Simiyu, Ai Xin, James Opondo Abuogo, Rong Jingguo, Girmaw Teshager Bitew,

Odesanmi Gbenga Abiodun and Richard A. Musungu

DAY 1 (Cont.)

PART 2: Regional Conference

SESSION 4: Photovoltaic Technologies, Small Scale EmbeddedGeneration and Distribution Transformers

4.1

4.2

4.3

4.4

#67 Performance characterization of different photovoltaic technologies inoutdoor climatic conditionsHlaluku Wisani Mkasi, Manjunath Basappa Ayanna, Larry Pratt, Kittessa Roro and

Siyasanga Innocent May

#135 Eskom Heritage Park rooftop ProjectHendri Geldenhuys, Dumisani Mtolo, Aradhna Pandaram, Koos Kraft and Johan Beukes

#41 The future of Distributed Solar PV in South AfricaAradhna Pandarum and Ulrich Minnaar

#133 The Dead Grid Safety LockHendri Geldenhuys and Johan Beukes

SESSION 5: Markets and Regulations

5.1

5.2

5.3

5.4

#42 Integration Of Distributed Energy Resources (DER’s) :A Revenue Impact Study & Tariff Optimization Analysis for Ethekwini MunicipalityLeshan Moodliar, Andrew Swanson and Farzad Ghayoor

#104 Development of Small Modular Nuclear Reactors as Municipal Power StationsPat Naidoo, Simon Connell, Dave Nicholls and Anthonie Cilliers

#95 Evaluating capacity mechanisms in the South African Power PoolJarrad Wright and John van Coller

#120 Exploring a regulatory framework for Battery Energy Storage SystemsZoe Lincoln

DAY 1 (Cont.)

PART 2: Regional Conference

SESSION 6: Emerging Technology in Power Transformers

6.1

6.2

6.3

6.4

6.5

#49 Effects of Surface Discharges on the Lightning Impulse Breakdown Voltage ofEster Oil-Impregnated Pressboard Insulation in Power TransformersBakhekile Ndlovu and Cuthbert Nyamupangedengu

#64 Applicability of Dissolved Gas Analysis in canola-based natural ester oil under high energy discharge faultHlengiwe Mnisi and Cuthbert Nyamupa

#68 A study of cavity partial discharge time-evolution characteristics in ester oil-impregnated transformer press-board insulationKeneiloe Mosala and Cuthbert Nyamupangedengu

#73 Ten Years of Experience with Natural Ester Dielectric Fluid in 245kV: Shunt Reactor of Vilhena Substation - EletronorteRoberto Da Silva, Iran Arantes, Mauricio De Lima, Lucas De Oliveira, Ito Capinos and Geraldo Nicola

#84 Solar Power Plant Transformer Loss Computation under Harmonic Currents using Field Element MethodBonginkosi Thango

SESSION 7: Emerging Technologies

7.1

7.2

7.3

7.4

7.5

7.6

#52 Experience with an Industrial IoT 800 kW Microgrid in AfricaAndrew Hank, Desmond Mabilo, Kelle Govender and Marco Rahner

#62 Viability of plastic hardware for telecommunicationsTahir Essa and Muzakkir Hoosen

#99 Neutronics and thermal hydraulics modelling for a single fuel elementimmersed in a helium thermal fluid for a distributed energy sourcePat Naidoo, Simon Connell, Dave Nicholls, Anthonie Cilliers and Jacobus Conradie

#119 Artificial intelligence inclusion in infrared thermography programs: A use caseJolanda Becker and Moegamad Rustum Emjedi

#70 Electroluminescence (EL) Imaging characterization for Photovoltaic (PV) modulesMokgadi Tammy Malefafana, Lawrence Pratt, Manjunath Basappa Ayanna and Kittessa Roro

#136 Single phase energisation resonance of small distribution TransformersHendri Geldenhuys and Paddy Padayachee

DAY 2

PART 2: Regional Conference

SESSION 8: Power system technical performance

8.1

8.2

8.3

8.4

8.5

8.6

#77 Validation of EMT Models of Renewable Power Plants in South AfricaAdam Bartylak

#58 Considerations in the development of a distributor’s blackout load restorationand recovery planUriel Heideman and Malcolm Van Harte

#48 Low Frequency Electric Safety Analysis Of A Utility Scale Photovoltaic PlantDr Pieter H Pretorius

#47 Lightning Risk Considerations Related To Wire-Line Technology Applied inLarge Utility Scale PV PlantDr Pieter H Pretorius

#6 Harmonic emission assessment in a dynamic environment using aggregated harmonic phasorsBrandon Peterson, Johan Rens, Gerhard Botha and Ulrich Minnaar

#66 Automatic Service Restoration on Distribution Networks for the Implementation of Fault Location, Isolation and Service Restoration (FLISR)Fundiswa Mthethwa and John Van Coller

SESSION 9: Power Lines

9.1

9.2

9.3

9.4

9.5

9.6

#44 Advantages and disadvantages of low insulation level on overhead MV power linesAndreas Beutel, Bruce McLaren, Hendri Geldenhuys and Willem Dirkse Van Schalkwyk

#115 The Application of Remotely Piloted Aircraft Systems (RPAS) for Powerline InspectionsSiyanda Biyela, Obakeng Fredy Duiker, Nishanth Parus, Nishal Mahatho, Elvis Mathebula, Jack

Mathebula, Gudani Nekhavhambe, Connan Jacobs and A-J Phillips

#117 Considerations for Transmission Line Emergency RestorationSibonelo Nzama, Rishen Moodley and Ndangi Muthadi

#109 Overhead Line Tower Member TheftGavin Strelec, Dan Dhukan and Gino Pillay

#121 Eskom experiences with innovative foundation solutionsDan Dukhan and Siyabonga Dubazana

#102 Pollution Monitoring for HVDC TransmissionMatimba Mathebula, Nishal Mahatho, Nishanth Parus, Gavin Strelec and Freddy Duiker

DAY 2 (Cont.)

PART 2: Regional Conference

JOINT SESSION: Regional Conference

1

2

#54 Network planning studies to evaluate the impact of theBotswana – South Africa (BOSA) interconnector on the SAPP NetworkSiyanda Ncwane and Gert Fourie

#74 Improving the security of the power corridor between South Africa and Namibia: Eskom-NamPower 2nd 400kV interconnector case studyTsolane Mokoena, Siyanda Ncwane, Jenamiso Moalosi and Ronald Marais

JOINT SESSION: SC B4 International Colloquium

3

4

5

6

#20 Strategy for Northeast Asia Power System Interconnection - Technical Assistance to MongoliaPhilippe Lienhart

#16 The Eastern Electricity Highway Project - Design Aspects and Major Technical Features of the new HVDC InterconnectorEric Manyaki, Sonja Pflaum, Carsten Bartzsch, Nils Schittenhelm and Hailemariam Moges

#24 System Design of the 3*1000MW Luxi Back-to-Back with hybrid LCC and VSC technology for regional interconnectionShukai Xu, Hong Rao, Ting Hou, Yuxin Lu, Yuebin Zhou, Weihuang Huang and Ye Zhang

#35 Design considerations for ±800kV, 6000MW Raigarh-Pugalur HVDC, Interconnecting Central and South IndiaAnna-Karin Skytt, Rajashekar Patlola and Abhay Kumar

DAY 2 (Cont.)

17:30 -19:30

07:30 - 09:00

Time

09:00 - 09:15

09:15 - 09:25

09:25 - 09:40

09:40 - 10:20

10:20- 10:30

10:30 – 11:00

Time Venue: Springbok

11:00 – 12:30

B4 Session 1Network Stability

Session Chair: Bjarne Andersen

11:00 – 11:15

#2 Real-time Modelling and Simulation of a Multi-

terminal Hybrid UHVDC Transmission System, G. Wenming

11:15 – 11:30

#11 Real-time simulation and analysis of phase shifting

transformer for improvement of Tomsk power system

transient stability, O. Suslova

11:30 – 11:45

#18 Using a Series Blocking Reactor to Reduce

Harmonic Filtering Requirements and Losses in Static

VAr Compensators:Tauá SVC Experience, M. Lima

11:45 – 12:00

#19 Temporary DC Fault Clearing Sequence in a HVDC

System with Voltage Source Converter and Overhead

Line, K. Fadzeyeu

12:00 – 12:15#27 Minimizing Loss of Transmitted Power by VSC

during Overhead Line Fault, P. Portugal

12:15 – 12:30

#30 Simulation Research on the Effect of Combination

Modification of HVDC and STATCOM on the Stability of

DC System in Weak AC Networks, Q Guo

12:30 – 13:30

kobgnirpS :euneV2 abadnileP :euneV1 abadnileP :euneVemiT

13:30 – 15:00

Session 2Power system operation and control

Session Chair: Kehinde Awodele

Session 3Integration of Distributed Energy Resources and

MicrogridsSession Chair: Jarrad Wright

B4 Session 2Renewable Energy

Session Chair: Les Brand

13:30 – 13:45

#116 High Penetration of Inverter Based Generators:

Things to consider when conducting frequency studies,

N. Gumede

#96 Emerging Regulatory Requirements for Small

Modular Nuclear Reactors in Distributed Electrical

Systems, D. Nicholls

#3 Design and Operational Experience of the World’s

First Three-terminal VSC HVDC system (Nan’ao MTDC)

for Wind Power Integration and its Upgrade with DCCBs,

S. Xu

13:45 – 14:00

#93 The Advantages of PMU Data Analytics in Power

Systems with High Renewable Energy Penetration, T. Machabe

#105 Engineering Small Modular Nuclear Reactors for

Micro and Nano Grid Application : The Case Study Based

on NASA's 10 kilowatt unit, S. Connell

#7 Regional HVDC Interconnection and its Impact on

Network Performance, R. Hariharan

14:00 – 14:15

#124 Challenges of operating a power system with

integrated renewable energy generation: A case study,

B. Nhlapo

#37 Integration of PV installations within grids: Impacts

and solutions, Q. Tran

#17 Impact of Integration of Large Amount of

Renewable Generation near Existing HVDC Terminals, H. Suriyaarachchi

14:15 – 14:30

#128 Constraining the intermittency of wind and

photovoltaic systems through curtailment, N. Mararakanye

#103 Evaluation and Impact Assessment of Solar Roof-

Top PV on Electric Power Distribution Networks, R. Reddy

#21 Increasing Bulk Power Transfer of Renewable

Generation with Modular FACTS to Lower Wholesale

Costs to Consumers, P. Harrington

14:30 – 14:45#65 Managing flexibility in power system planning:

Modelling and cases of study, A. Mansoldo#50 Virtual Synchronous Generator-Based Control in

Power Systems; An Overview, P. Simiyu

14:45 – 15:00

#100 Exploiting Cascade Failure for the Calibration of

Planning Assumptions and Operational Improvement, M. Viljoen

15:00 – 15:30

kobgnirpS :euneV2 abadnileP :euneV1 abadnileP :euneVemiT

15: 30 – 16:30

Session 4Photovoltaic Technologies, Small Scale Embedded

Generation and Distribution TransformersSession Chair: Pamela Kamera

Session 5Markets and Regulations

Session Chair: Kurt Dedekind

B4 Session 3LVDC and MVDC distribution and microgrids,

Distributed FACTS devices, Synthetic inertia, HVDC Insulation

Session Chair: Dragan Jovcic

15:30 – 15:45

#67 Performance characterization of different

photovoltaic technologies in outdoor climatic conditions,

H.W. Mkasi

#42 Integration Of Distributed Energy Resources (DER’s)

: A Revenue Impact Study & Tariff Optimization Analysis

for Ethekwini Municipality, L. Moodliar

#26 Droop-based Control with Virtual Inertia and

Stability Analysis of the Multi-terminal VSC MVDC

Distribution Network with PV integrated, P. Simiyu

15:45 – 16:00#135 Eskom Heritage Park rooftop PV Project, A. Pandarum

#104 Development of Small Modular Nuclear Reactors

as Municipal Power Stations, D. Nicholls

#29 Performance of a VSC with Energy Storage

Capability Compared to Virtual Synchronous Machine

Control Strategy in Weak Grids, H. Suriyaarachchi

16:00 – 16:15#41 The future of Distributed Solar PV in South Africa, A. Pandarum

#95 Evaluating capacity mechanisms in the South

African Power Pool, J.G. Wright

#13 Pollution mapping methodology for selection of

external insulation of HV DC and HV AC electric

transmission, O. Suslova

16:15 – 16:30 #133 The Dead Grid Safety Lock, H. Geldenhuys#120 Exploring a regulatory framework for Battery

Energy Storage Systems, Z. Lincoln

#97 Leakage current monitoring on in-service

composite and glass insulators of the Cahora Bassa

HVDC transmission line, N. Parus

19:00 - 23:00

Welcome Cocktail - Exhibition Hall

Tuesday, 01 October 2019

Registration - Exhibition Hall

Venue: Pelindaba

Opening Address - Mohamed Rashwan, Chair, CIGRE Study Committee B4

Venue: Pelindaba

Q & A session

Tea/Coffee/Exhibition

Welcome - Prince Moyo, Chair, CIGRE Southern Africa

CIGRE International Update - Rob Stephen, President, CIGRE

Keynote Address - Yusheng Xue, Honorary President, State Grid Electric Power Research Institute

Gala Dinner - Carnivore Restaurant

#45 Challenges and Opportunities of Battery Storage in the WAPP Interconnected HV Grid, S. Mahapatra

#88 Microgrid / Battery Energy Storage Systems value stacking to defer distribution capacity upgrades for Radial

Feeders, R. Singh

Session 1Battery Energy Storage Systems Applications

Session Chair: Prudence Madiba

#139 Eskom experience on battery energy storage systems: the network planning perspective, M. Soni

Tea/Coffee/Exhibition

Lunch/Exhibition

#140 Detailed methodology to precisely assess the need for battery systems to solve congestions in the Turkish

Transmission Grid, P. Lienhart

#46 Electrification of Africa: Future prospects of the Provision of Ancillary Services in the WAPP system using the

Battery Storage facilities of the Mini-grids, S. Ki

#38 Studies to determine optimal battery storage for increasing variable renewable energy penetration on eight

Pacific Islands, G. Chown

Programme

Please click on the block below to download the full paper

Wednesday, 02 October 2019

08:00 - 09:00

!FER#!FER#!FER#emiT

09:00 – 10:30

Session 6Emerging Technology in Power Transformers

Session Chair: Mokwape Lekganyane

Session 7Emerging Technologies

Session Chair: Zwelandile Mbebe

B4 Session 4HVDC Reliability, Refurbishment and upgrades of

HVDC and FACTS installationsSession Chair: Carsten Bartzsch

09:00 – 09:15

#49 Effects of Surface Discharges on the Lightning

Impulse Breakdown Voltage of Ester Oil-Impregnated

Pressboard Insulation in Power Transformers, B. Ndlovu

#52 Experience with an Industrial IoT 800 kW Microgrid

in Africa, A. Hank#1 Future Proofing HVDC Systems, M. Bennett

09:15 – 09:30

#64 Applicability of Dissolved Gas Analysis in canola-

based natural ester oil under high energy discharge

fault, H. Mnisi

#62 Viability of plastic hardware for

telecommunications, M. Hoosen #28 Improving HVDC system reliability, T. Rauhala

09:30 – 09:45

#68 A study of cavity partial discharge time-evolution

characteristics in ester oil-impregnated transformer

press-board insulation, K. Mosala

#99 Neutronics and thermal hydraulics modelling for a

single fuel element immersed in a helium thermal fluid

for a distributed energy source, S. Connell

#34 Use of HVDC reliability and availability data in

power system analysis - approaches, challenges and

opportunities, T. Rauhala

09:45 – 10:00

#73 Ten Years of Experience with Natural Ester Dielectric

Fluid in 245kV: Shunt Reactor of Vilhena Substation –

Eletronorte, R. Da Silva

#119 Artificial intelligence inclusion in infrared

thermography programs: A use case, J. Becker#91 Parallel Operation of the Two Poles on One Line in

the Inga-Kolwezi HVDC Scheme, E. Lubini

10:00 – 10:15

#84 Solar Power Plant Transformer Loss Computation

under Harmonic Currents using Field Element Method,

B.A. Thango

#70 Electroluminescence (EL) Imaging characterization

for Photovoltaic (PV) modules, M. T. Malefafana

10:15 – 10:30

#78 Recognition of the benefits by the use of

Transformers and Reactors immersed in insulating fluid

with high fire point (k class): the case of Fire Department

of Sao Paulo state in Brazil, R. Da Silva

#136 Single phase energisation resonance of small

distribution Transformers, H. Geldenhuys

10:30 – 11:00

!FER#!FER#!FER#emiT

11:00 – 12:30

Session 8Power system technical performance

Session Chair: Matankiso Mohlokoana

Session 9Power Lines

Session Chair: Milliah Ripinga

B4 Session 5HVDC and FACTS Equipment and Technology

Session Chair: Abhay Kumar

11:00 – 11:15#77 Validation of EMT Models of Renewable Power

Plants in South Africa, A. Bartylak#44 Advantages and disadvantages of low insulation

level on overhead MV power lines, A. Beutel#5 Failure mode analysis of Hybrid DC Circuit Breaker,

D. Jovcic

11:15 – 11:30

#58 Considerations in the development of a distributor’s

blackout load restoration and recovery plan, U. Heideman

#115 The Application of Remotely Piloted Aircraft

Systems (RPAS) for Powerline Inspections, S. Biyela#22 Loss Optimized Design Of Air-core Reactors, A. Gaun

11:30 – 11:45#48 Low frequency electric safety analysis of a utility

scale photovoltaic plant, P.H. Pretorius#117 Considerations for Transmission Line Emergency

Restoration, S. Nzama#31 Functional Real Time Testing of HVDC IEDs, G. Chaffey

11:45 – 12:00

#47 Lightning risk considerations related to wire-line

technology applied in large utility scale PV plant, P.H. Pretorius

#109 Overhead Line Tower Member Theft, G. Strelec#36 Parallel connection of IGBT devices in VSC for

HVDC, J. Dorn

12:00 – 12:15

#6 Harmonic emission assessment in a dynamic

environment using aggregated harmonic phasors, B. Peterson

#121 Eskom experiences with innovative foundation

solutions, S. Dubazana

#80 Modelling, testing and evaluation of HVDC

equipment- HVDC Converters, DC Breakers, DC

Transformers, N. Gwatidzo

12:15 – 12:30

#66 Automatic Service Restoration on Distribution

Networks for the Implementation of Fault Location,

Isolation and Service Restoration (FLISR), F. Mthethwa

#102 Pollution Monitoring for HVDC Transmission, M. Mathebula

12:30 – 13:30

Time

13:30 – 15:00

13:30 – 13:45

13:45 – 14:00

14:00 – 14:15

14:15 – 14:30

14:30 – 14:45

14:45 – 15:00

15:00 – 15:30

15: 30 – 16:00

Thursday, 03 October 2019

Tea/Coffee/Exhibition

Lunch/Exhibition

Registration - Exhibition Hall

#35 Design considerations for ±800kV, 6000MW Raigarh-Pugalur HVDC, Interconnecting Central and South India, R. Patlola

Joint Session Regional Interconnections

Session Chair: Mohamed Rashwan

#54 Improving the security of the power corridor between South Africa and Namibia: Eskom-NamPower 2nd 400kV interconnector case study, S. Ncwane

#74 Network planning studies to evaluate the impact of the Botswana – South Africa (BOSA) interconnector on the SAPP Network, T. Mokoena

#REF!

Closing Ceremony - Best Paper Awards

Tea/Coffee/Exhibition

#20 Strategy for Northeast Asia Power System Interconnection - Technical Assistance to Mongolia, P. Lienhart

#16 The Eastern Electricity Highway Project - Design Aspects and Major Technical Features of the new HVDC Interconnector, C. Bartzsch

#24 System Design of the 3*1000MW Luxi Back-to-Back with hybrid LCC and VSC technology for regional interconnection, S. Xu

Tuesday, 1 Oct, 17:30 – 19:30

Venue:

Dress:

Exhibition Hall, Misty Hills

Informal

Wednesday, 2 Oct, 19:00 – 23:00

Venue:

Dress:

Cost:

Sponsor:

Carnivore Restaurant at Misty Hills

Semi-formal /Smart / Traditional

R650.00 per person

Revive Electrical Transformers (Pty) Ltd

Sponsors

Media Partners

www.cigresa.org.za