2020 Georgia Tech Protective Relaying Conference

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An Introduction to NERC PRC-027 Studies for Transmission, Synchronous and Inverter Based Resources

An Introduction to NERC PRC-027 Studies for Transmission, Synchronous and Inverter Based Resources Caitlin Short, P.E., Lyn England, Tony Limon, P.E. POWER Engineers, Inc.

Abstract -- NERC PRC-027 is one in a suite of standards implemented to increase grid reliability in response to the 2003 Northeast United States blackout. The intent of the PRC-027 standard is to maintain coordination of protection systems on the Bulk Electrical System (BES) to minimize the breadth of outages needed to clear faults in order to minimize system impacts and prevent cascading outages. This paper describes the approach, challenges, and lessons learned from performing NERC PRC-027 studies for transmission systems, synchronous generation plants and inverter-based resources. The paper will highlight the critical differences between performing a study for each type of system, with an emphasis on producing appropriate documentation for asynchronous generation plants which provide unique coordination challenges. It is intended that this paper will serve as a reference to aid electric utilities and independent power producers in complying with the NERC PRC-027 standard.

Antonio Limon
Power Engineers Inc.
United States

Caitlin Short
Power Engineers Inc.
United States

Chris Hoene
Power Engineers Inc.
United States

 


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