Integrating Inverter Based Resources in the Bulk Power Grid
- Oct 23, 2020 3:24 pm GMT
This item is part of the Distributed Energy Resources - Fall 2020 SPECIAL ISSUE, click here for more
The North American Bulk Power System (BPS) is undergoing a rapid change in generation mix with increased penetration of Inverter Based Resources (IBR) like solar, wind, or storage. Just for reference, if we look in the PJM footprint, that coordinates the movement of wholesale electricity in all or parts of thirteen states and the District of Columbia, we see that in it's latest AF2 interconnection queue, as of March 2020, out of a total of 438 generation interconnection requests, solar led the pack with 330, followed by storage (68) and natural gas (18). If we look at this from the power level, then solar constitutes 20,674MW out of the total 28,502MW of planned queue generation. These resources are interfaced with the grid asynchronously using power electronic converters with fast controls that are different than conventional synchronous generators. Though IBRs has presented new opportunities for grid control due to their fast response, their growing penetration is also a concern for utilities across North America on how to make sure to interconnect these resources and maintain grid reliability.
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