August 2021 ERCOT Operations Planning PDCWG Sep 8th 2021 Discussion Points Current GTBD Parameters amp References Metric to measure Regulation bias and performance Regulation Deployed comparison for last three months ID: 1045905
Download Presentation The PPT/PDF document "Regulation Bias Analysis Post SCR-773" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
1. Regulation Bias Analysis Post SCR-773August 2021ERCOTOperations PlanningPDCWG | Sep 8th, 2021
2. Discussion PointsCurrent GTBD Parameters & ReferencesMetric to measure Regulation bias and performanceRegulation Deployed comparison for last three months.Total Regulation (net) Deployed ComparisonRegulation Deployed 15-minute interval comparison by each hour for 2018, 2019, and 2020 monthsRegulation Exhaustion RateRegulation bias for consecutive 5-min SCED intervalsTime Error & Contributing FactorsSummary
3. Current GTBD Parameters3
4. Projected Wind Ramp Rate MAE4
5. Projected Wind Ramp Rate Error5
6. Projected Solar Ramp Rate MAE6
7. Projected Solar Ramp Rate Error7
8. References8
9. Metrics to Measure SCR-773 PerformanceTrend and monitor the regulation deployed by hour.Set target of 50 MW for total regulation deployed by hour for peak hours.Set target of 85% for the number of intervals where regulation deployment was both up and down for peak hours.Track the Regulation exhaustion rate for all hours (not to exceed 5%).Using a 50MW filter, target 15 occurrences or less per month for regulation bias of six or more consecutive 5 minute intervals for peak hours.
10. Total Regulation Deployed ComparisonTotal regulation deployed for the last three months.
11. Total Regulation Deployed Comparison - Monthly11
12. Metric 1: Regulation Deployed ComparisonsTrend and monitor the regulation deployed by hour.
13. Regulation Deployed Comparison13
14. Regulation Deployed Comparison14
15. Regulation Deployed Comparison15
16. Metric 2: Total Regulation Deployed ComparisonsSet target of 50MW for total regulation deployed by hour for peak hours.
17. Total Regulation Deployed Comparison17
18. Metric 3: 15-min Intervals Where Both REGUP/REGDN Were DeployedSet target of 85% for the number of intervals where regulation deployment was both up and down.
19. “Zero” Crossing Regulation19
20. “Zero” Crossing Regulation20
21. Metric 4: Regulation Exhaustion RateTrack the regulation exhaustion rate for all hours (not to exceed 5%.)
22. Regulation Exhaustion Rate22Regulation-Up Aug-19Aug-20Aug-21All Hours Average2.53%4.39%2.79%
23. Regulation Exhaustion Rate23Regulation-Down Jul-19Jul-20Jul-21All Hours Average4.67%8.83%6.80%Regulation-Down Aug-19Aug-20Aug-21All Hours Average5.54%6.35%5.22%
24. Metric 5: Stats on REGUP Bias for Consecutive 5-min IntervalsUsing a 50MW filter, target 15 occurrences or less per month for regulation bias of six or more consecutive 5-minute intervals for peak hours.
25. Regulation Bias for Consecutive SCED Intervals25Regulation-Up Jul-19Jul-20Jul-21All869174Peak323620Regulation-Up Aug-19Aug-20Aug-21All9411477Peak324228
26. Regulation Bias for Consecutive SCED Intervals26Regulation-Down Aug-19Aug-20Aug-21All151164142Peak13620
27. Time Error and Contributing FactorsAccumulated Time Error, Load and Wind Ramp, PWRR Error, Start-Up/Shut-Down Hours, STLF Error, and Expected Generation Deviation.
28. Time Error Accumulation28
29. Load Profile29
30. Net Load Profile30
31. Load Ramp31
32. Wind Profile32
33. Start-Up & Shut-Down Hours33
34. Short-Term Load Forecast Error34
35. STLF Error Chart35
36. Expected Generation Deviation36Expected Generation Deviation Jul-19Jul-20Jul-21All Hours Average-57.29-74.78-58.67Expected Generation Deviation Aug-19Aug-20Aug-21All Hours Average-58.48-75.10-66.71
37. Expected Generation Deviation37
38. Expected Generation Deviation38
39. Questions?Thank you!