i. kepco introductions3.amazonaws.com/jujama.usercontent/23ddd075-a0b2... · kepco’s generation...
TRANSCRIPT
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I. KEPCO Introduction
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1898
The first electric power company (Hansung) was
established in Korea
1961
Three regional electric companies were merged
to establish a national electric power company (KECO)
1982
KECO was renamed KEPCO when it became a whollyGovernment-owned corporation
1989
2001
KEPCO’s generation unit was spun off to formsix 100%-owned subsidiaries (GENCOs)
2014 KEPCO’s headquarter was transferred to Naju-city
Listed its shares on KRX (Korea Stock Exchange) (21% by IPO)
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(Capacity : 72,105MW)
(Capacity : 21,110MW)
2001.4 : 5 Genco separated, 2002.2 : 1 Nuclear company separated
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Present
EVs
Smart Home
DistributedEnergy
Resources
Smart Building
Smart ApplianceIn-home Display
Storage Devices
SmartHeating & Cooling
Future
Effective in CO2 Reduction to Prevent Global Warming
• One way flow of Electric Power and Information Real time Two-way flow
Peak Shaving from Technologies
• Supplier-oriented network Operation Customer participation
• Centralized Generation (Massive use of fossil fuel) Distributed Generation (Renewable)
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Loss Rate
29.3%
3.69%
‘61 ‘80
5.0%(‘11)8.6%(‘11)
7.3%(‘11) 6.2%(‘11)
‘00 ‘14
6.7%4.7%
Power Outage time Sales per Employee
2,047
24,338
‘80 ‘08
11,131(‘09)5,982(‘09)
7,282(‘09) 13,071(‘09)
‘10 ‘14
18,358 21,938
[MWh]
Power IT Installation
170,000 Customers (2012)
11%, 2.5mil household
190 systems (2014)
DIS, Design, WFM (2014)
53%, 94,500
AMI for MV
AMI for LV
SCADA/DMS
NDIS
DAS*
Completion‘20
19.7
10.9
‘03 ‘05
10(‘08)68(‘11)
73(‘11) 120(‘09)
‘07 ‘14
18.617.2
[Minute/household]
*Distribution Automation System
II. Utilizing of TETRA
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□ Built up Analog TRS* (EDACS) based on 800Mhz frequency for power
facility maintenance with Voice communication (1994)
*Trunked Radio System
□ Used Analog TRS power line switch control and monitor with data
communication (1998)
□ Government allowed KEPCO to use 380Mhz frequency for Digital TRS
migration project (2005)
□ Installed Digital TRS demo system with TETRA, tested Data application
solutions such as controlling and monitoring, etc. (2007~)
□ Implemented nationwide TETRA installation project (2009~ )
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TETRA G/W
AMI Server
DAS Server
DistributionRepairing Server
TETRA NMS
AMI Units
Distribution AutomationSystem Units
DistributionRepairing Vehicles
Base Station
Weather ObservationServer
Weather ObservationUnits
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□ Automation system : Control and real time monitor of power switches in the field
□ Power facility maintenance : Car navigation and transferring repair information
□ Gathering weather information on the route of Typhoons
□ Collecting Meter data at power poles and transferring to tariff Server
Nationwide Radio Coverage
: 70%
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□ European Telecommunication Standard Institute (ETSI)
□ KEPCO has developed application using both of Control and Traffic
Channel [Control CH used Power Automation thanks to fast comm. Speed]
III. Test Overview
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□ Improvement of throughput and success rate using SCCH
□ Comparison the performance of 1 Ch(MCCH) VS. 4 Ch(1 MCCH+3 SCCH)
- Check Power Phase Current Measurement Time and Success Rate
- Check Total Info. Measurement Time and Success Rate
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Breaker Breaker4Breaker3Breaker2Breaker1
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IV. Test Results
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1924 23
0
10
20
30
MCCH SCCH(1) SCCH(2) SCCH(3)
17 19 19 19
0
10
20
30
MCCH SCCH(1) SCCH(2) SCCH(3)
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V. Summary
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Before Solution
Phase current
- Over than 99% success rate at 0.5 Sec schedule- Down success rate when reduce schedule
Total Information
- Insufficient success rate (97%) at 5sec schedule
- Down success rate when reduce schedule
After Solution
Phase current
- Very stable success rate when reduce schedule
- Down success rate when reduce schedule
Total Information
- 98% success rate at 3~4sec schedule
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Without Further additional hardware Channel card in Base station(TB3), Only with SCCH software upgrade
process, Power facilities automation project can be realized.
BTS are able to contain 4 time numbers of power switch terminal modem by simply adding SCCH software
Even though Shortening periodic schedule from 30sec to 0.3sec, Communication success rate can rise from
94~96% to 99~100%
Gathering and Response time of all modem(224pcs) can be shortened from 5.5~3.5sec to 2.6~2.4sec
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Communication success rate rise from 86~96% to 97~98%
Able to make sure longer the periodic schedule help communication success rate approach up to 100%
Gathering and Response time of all modem(224pcs) can be shortened from 10~9sec to 9sec
Capacity of 4 time numbers of Modem1
Phase Current Measurement2
Total Information Measurement3
