item 4.2: summer intern presentations · item 4.2. ercot public. 2019 summer interns. 2 • 17...
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Item 4.2: Summer Intern Presentations
Bill MagnessERCOT President & CEO
Board of Directors Meeting
ERCOT PublicAugust 13, 2019
Item 4.2ERCOT Public
2019 Summer Interns
2
• 17 students representing 9 universities across the U.S.
• Contributed to 15 different departments this summer
• Recruiting received more than 1,400 applications for 17 summer internship openings
Item 4.2ERCOT Public
2019 Summer Interns Attend the Following Universities
3
UT Austin 6
UT Dallas 1
Texas A&M University 4
Baylor University 1
Texas State University 1
Arizona State University 1
University of Washington 1
Rensselaer Polytechnic Institute 1
Pennsylvania State University 1
Total 17
Item 4.2ERCOT Public
Jessica Wert
Master of Science in Electrical EngineeringTexas A&M University (May 2020)
2019 Transmission Operations Planning
Item 4.2ERCOT Public
Overview
5
• Foundation for dynamic simulation studies in real-time systems
• Benchmark dynamic responses
• Demonstrate functionality in production environment
Goals
PSS®E ≅ TSAT ≅ PMU
Item 4.2ERCOT Public
0.0 5.0 10.00.0 5.0 10.00.0 5.0 10.0
0.0 5.0 10.00.0 5.0 10.0
1.014
0.992
Benchmarking TSAT Against PSS®E Across ERCOT
6
Gen
erat
or T
erm
inal
Vol
tage
(pu)
Gen
erat
or T
erm
inal
Vol
tage
(pu)
1.10
0.95
1.10
0.55
1.044
1.037
1.10
0.00
PSSETSAT
Time (s) Time (s)
Time (s)Time (s) Time (s)
PSSETSAT
PSSETSAT
PSSETSAT
PSSETSAT
Coastal Texas South Texas
South Central Texas Far West Texas East Texas
Item 4.2ERCOT Public
Benchmarking TSAT Against PMU Data
7
TSAT demonstrates shallower frequency drops• Governor deadband modeling• Governor response status• Load-frequency dependence
PMU Data
TSAT Simulation
Bus
Fre
quen
cy (H
z)
0.0 7.0 14.0 21.0 28.0 35.0
60.06
60.01
59.92
59.87
59.83
Time (s)
Item 4.2ERCOT Public
Conclusions
8
Foundation to find stability-related operating limits in real time• Stable operations of grid can be achieved more reliably and efficiently
Key Takeaway
Benchmark dynamic contingency response in key areas• Establishes trust in TSAT performance
Demonstrate functionality in production system (study mode)• Contribute to reliable and efficient grid operations
• Can enhance operator training experience
Achievements
Item 4.2ERCOT Public
Vijay Singh
Master of Science in Electrical EngineeringUniversity of Texas (December 2019)
2019 Resource Integration
Item 4.2ERCOT Public
Overview
10
0
50
100
150
200
250
300
350
2017 2018 2019
New Interconnection Requests
Gas Wind Solar Storage Total
All interconnection requests require a screening study.
Item 4.2ERCOT Public
11
Processing of Results
Information from
engineer
Shift Factor Analysis Processing of Shift Factors
Results of Shift Factor Analysis
Power Flow Analysis
Updated Case
Information from engineer
Transfer and Contingency
Analysis
Report of Analysis for IE
Problem• Time consuming • Higher risk of errors
Current Screening Study Process
Item 4.2ERCOT Public
12
Shift Factor Analysis
Transfer and Contingency
Analysis
Information from
engineer
Power Flow Analysis
Report of Analysis
Results of Analysis
Screening Study Process with Tool
Solution• Automation
Item 4.2ERCOT Public
Screening Study with Tool
13
Benefits
ERCOT• Shorter study times
• Reduced potential errors
• Standardized process
Market Participants• Faster turnaround
• Concise report
• Consistent results
Personal• Gained new skills
• Experience
• Personal connections
Item 4.2ERCOT Public
2019 Grid Planning and Operations Administration
Caleb HollandBachelor of Science Electrical and Computer Engineering
University of Texas (December 2020)
John LawsonBachelor of Science Electrical and Computer Engineering
Baylor University (December 2019)
David ZhouBachelor of Science Electrical and Computer Engineering
University of Texas (May 2020)
Item 4.2ERCOT Public
Problems with Current RARF Implementation
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Item 4.2ERCOT Public
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Item 4.2ERCOT Public
Resource Integration and Ongoing Operations -Resource Services
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