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Title: Grid-Forming Frequency Shaping Control for Low-Inertia Power Systems

Abstract

As power systems transit to a state of high renewable penetration, little or no presence of synchronous generators makes the prerequisite of well-regulated frequency for grid-following inverters unrealistic. As such, there is a trend to resort to grid-forming inverters which set frequency directly. We propose a novel grid-forming frequency shaping control that is able to shape the aggregate system frequency dynamics into a first-order one with the desired steady-state frequency deviation and Rate of Change of Frequency (RoCoF) after a sudden power imbalance. The no overshoot property resulting from the first-order dynamics allows the system frequency to monotonically move towards its new steady-state without experiencing frequency Nadir, which largely improves frequency security. We prove that our grid-forming frequency-shaping control renders the system internally stable under mild assumptions. The performance of the proposed control is verified via numerical simulations on a modified Icelandic Power Network test case.

Authors:
 [1];  [2];  [3];  [1]
  1. Johns Hopkins Univ., Baltimore, MD (United States)
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  3. Skolkovo Inst. of Science and Technology, Moscow (Russia)
Publication Date:
Research Org.:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program; National Science Foundation (NSF)
OSTI Identifier:
1764927
Report Number(s):
NREL/JA-5D00-79026
Journal ID: ISSN 2475-1456; MainId:32943;UUID:6d818571-78f7-4858-99a1-740bccc6493e;MainAdminID:19278
Grant/Contract Number:  
AC36-08GO28308; EPCN 1711188; AMPS 1736448; CAREER 1752362; TRIPODS 1934979
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
IEEE Control Systems Letters
Additional Journal Information:
Journal Volume: 5; Journal Issue: 6; Journal ID: ISSN 2475-1456
Publisher:
IEEE
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; control of networks; power systems

Citation Formats

Jiang, Yan, Bernstein, Andrey, Vorobev, Petr, and Mallada, Enrique. Grid-Forming Frequency Shaping Control for Low-Inertia Power Systems. United States: N. p., 2020. Web. doi:10.1109/lcsys.2020.3044551.
Jiang, Yan, Bernstein, Andrey, Vorobev, Petr, & Mallada, Enrique. Grid-Forming Frequency Shaping Control for Low-Inertia Power Systems. United States. https://doi.org/10.1109/lcsys.2020.3044551
Jiang, Yan, Bernstein, Andrey, Vorobev, Petr, and Mallada, Enrique. 2020. "Grid-Forming Frequency Shaping Control for Low-Inertia Power Systems". United States. https://doi.org/10.1109/lcsys.2020.3044551. https://www.osti.gov/servlets/purl/1764927.
@article{osti_1764927,
title = {Grid-Forming Frequency Shaping Control for Low-Inertia Power Systems},
author = {Jiang, Yan and Bernstein, Andrey and Vorobev, Petr and Mallada, Enrique},
abstractNote = {As power systems transit to a state of high renewable penetration, little or no presence of synchronous generators makes the prerequisite of well-regulated frequency for grid-following inverters unrealistic. As such, there is a trend to resort to grid-forming inverters which set frequency directly. We propose a novel grid-forming frequency shaping control that is able to shape the aggregate system frequency dynamics into a first-order one with the desired steady-state frequency deviation and Rate of Change of Frequency (RoCoF) after a sudden power imbalance. The no overshoot property resulting from the first-order dynamics allows the system frequency to monotonically move towards its new steady-state without experiencing frequency Nadir, which largely improves frequency security. We prove that our grid-forming frequency-shaping control renders the system internally stable under mild assumptions. The performance of the proposed control is verified via numerical simulations on a modified Icelandic Power Network test case.},
doi = {10.1109/lcsys.2020.3044551},
url = {https://www.osti.gov/biblio/1764927}, journal = {IEEE Control Systems Letters},
issn = {2475-1456},
number = 6,
volume = 5,
place = {United States},
year = {2020},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Works referenced in this record:

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