Eastern Interconnection Generator Operator Webinar

Transcription

1 Eastern Interconnection Generator Operator Webinar Troy Blalock, RS Chair, SCE&G David Deerman, RS Member, Southern Company November 14, 2017

2 Public Meeting Notice Participants are reminded that this meeting is public. Notice of the meeting was posted on the NERC website and widely distributed. The notice included the number for dial-in participation. Participants should keep in mind that the audience may include members of the press and representatives of various governmental authorities, in addition to the expected participation by industry stakeholders. 2

3 Webinar Overview Purpose of the survey Overview of the spreadsheets used for data collection How to submit the data Who to contact with questions 3

4 Frequency Response Importance Reliability of the Interconnection Line of defense to prevent Under Frequency Load Shedding (UFLS) Prevent equipment damage Droop is essential for system restoration Compliance with NERC Reliability Standards Accurately predict system events (transmission models) NERC Alert on February 5, 2015 (Generator Governor Frequency Response Advisory) LL166: Generator Trip While Performing Frequency Response Solar Inverter Resource Interruption 4

5 Purpose of the Survey Applicable to all BES Generators (to include nuclear, renewables and storage) a) Gross individual nameplate rating greater than 20 MVA. Or, b) Gross plant/facility aggregate nameplate rating greater than 75 MVA. *Non-BES generators are encouraged to submit survey results Industry lead initiative to gather information through Generator Surveys to further analyze the Interconnections frequency response. Approved by the NERC Operating Committee September 2016 Advocated by the North American Generator Forum (NAGF) GOP Survey first introduced during a December 8, 2016 Webinar Frequency Response Initiative Generator Event Survey Webinar 5

6 The Capability Goal Reliability Guideline: Primary Frequency Control In order to provide Primary Frequency Control, it is recommended that all resources connected to an Interconnection be equipped with a working governor or equivalent frequency control device. The primary focus of the Guideline is prime mover governors. Other forms of resources providing frequency response should have similar response characteristics described herein for governor MW GE7FA Gas Mark VIe Turbine Frequency Algorithm added to Plant DCS 6

7 Generator Survey Form 7

8 Generator Survey: Historian Data Entry 8

9 Generator Survey: Results 9

10 Assessing Performance: Simplistic Grading System For Generators with headroom (between Pmin and 2% of Pmax), Generators who provide response >75% in the proper direction and sustained it for the lesser of the event duration or for 1 minute. Generators whose MW output remained unchanged, was in the wrong direction or withdrew response. 10

11 Survey Submission Expect to see a survey in the upcoming months with a recent event. Ideal event early morning or late evening when generation is committed but less than Pmax. Survey will have important information such as the survey form and submission instructions. Survey results are expected to be provided within 30 days of the notification. Upon conclusion of the EI Survey, in coordination with NAGF, will host series of WEBEX to discuss results and share ways to enable the capability of Primary Frequency Response. 11

12 Survey Contact General Questions about the Survey Troy Blalock (NERC RS Chair) - JBLALOCK@SCANA.COM Questions Regarding the Survey Form David Deerman - jddeerma@southernco.com Alex Giarratano - Alex.Giarratano@ercot.com Additional information NERC Reliability Guideline: Primary Frequency Control NERC EI GO Survey Distribution Sandy Shiflett - sandy.shiflett@nerc.net 12

13 EI Survey Materials Survey Excel Spreadsheets and Instructions BAL_Ad_Hoc_Per_Unit-Calculation_FWG_Ver0.14.xlsm NERC_BAL_Example_Data_Puller_FWG.xlsx Gen PFR Per Unit Calculation Tool_Intructions_Ver0.4.docx Gen PFR Per Unit Calculation Equations_Ver0.1.docx Sample Events 13

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