Impacts of High Share of Inverter-Based Resources on System Inertia and Frequency Control
Wednesday, October 14, 2020, 12:00 PM - 2:00 PM EDT
Category: CIGRE Academy Webinar
Registration Link
Attendees of this webinar will receive a certificate for .2 CEU credits.
Speakers [Moderator] Dr. Julia Matevosyan, ERCOT Dr. Diptargha Chakravorty, TNEI Dr. Papiya Dattaray, EPRI
Description As a result of environmental incentives and policies as well as rapid technological development, power systems around the world are experiencing an increased number of inverter-based resources (IBRs), such as wind, solar and battery storage, being built. One of the challenges is that IBRs do not contribute to synchronous inertial response, while on the other hand, due to low/zero operating costs, displacing synchronous generation that provides inertial response in the unit commitment. Inertial response provides inherent resistance to change in system frequency after large generation trip events. If system inertia is low, the rate of change of frequency will be higher for the same size of generation loss. This leaves less time for any existing frequency control measures to respond and arrest system frequency before it triggers Under-frequency Load Shedding (UFLS). System operators, researchers, manufacturers and developers in countries that are experiencing rapid growth of IBRs have developed methods and technologies to address these issues.
This webinar will cover fundamentals of frequency control and impacts from high share of IBRs on overall frequency performance, and mitigation measures and technologies to address some of the challenges.
The presenters are members of CIGRE Joint Working Group (JWG) C2/C4.41 – Impact of High Penetration of Inverter-Based Generation on System Inertia of Networks. The group started three years ago with the objective to summarize and formulate methods for system operation in low inertia conditions in order to prepare for the ongoing energy transition. The JWG’s work will conclude in the first quarter of 2021 with the Technical Brochure and the group will host a Tutorial in December 2020.
The webinar will cover the following topics:
Fundamentals of Frequency Control and Impacts from High Share of IBRs (15 mins) Dr. Julia Matevosyan, ERCOT
Inertia Monitoring around the World (15 mins) Dr. Papiya Dattaray, EPRI
Inertia and Frequency Control by Generation Technologies (10 mins) Dr. Julia Matevosyan, ERCOT
Inertia and Frequency Control by Load Resources (10 mins) Dr. Diptargha Chakravorty, TNEI
Procurement of Inertial Products, Example of Great Britain and Ireland (15 mins) Dr. Diptargha Chakravorty, TNEI
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Fast Frequency Response around the World (15 mins) Dr. Papiya Dattaray, EPRI
Methodology to Determine Amounts of Frequency Containment Reserve, Example of ERCOT (15 mins) Dr. Julia Matevosyan, ERCOT
Closing Remarks (5 mins) Dr. Julia Matevosyan, ERCOT
Q&A using slido.com (15-20 mins) Dr. Julia Matevosyan, ERCOT
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