Internal Induced Voltage Modification for Current Limitation in Virtual Synchronous Machine

Dai Orihara, Hisao Taoka, Hiroshi Kikusato, Jun Hashimoto, Kenji Otani, Takahiro Takamatsu, Takashi Oozeki, Takahiro Matsuura, Satoshi Miyazaki, Hiromu Hamada and Teru Miyazaki
Additional contact information
Dai Orihara: Renewable Energy Research Center, National Institute of Advanced Industrial Science and Technology, 2-2-9, Machiikedai, Koriyama 963-0298, Japan
Hisao Taoka: Renewable Energy Research Center, National Institute of Advanced Industrial Science and Technology, 2-2-9, Machiikedai, Koriyama 963-0298, Japan
Hiroshi Kikusato: Renewable Energy Research Center, National Institute of Advanced Industrial Science and Technology, 2-2-9, Machiikedai, Koriyama 963-0298, Japan
Jun Hashimoto: Renewable Energy Research Center, National Institute of Advanced Industrial Science and Technology, 2-2-9, Machiikedai, Koriyama 963-0298, Japan
Kenji Otani: Renewable Energy Research Center, National Institute of Advanced Industrial Science and Technology, 2-2-9, Machiikedai, Koriyama 963-0298, Japan
Takahiro Takamatsu: Renewable Energy Research Center, National Institute of Advanced Industrial Science and Technology, 2-2-9, Machiikedai, Koriyama 963-0298, Japan
Takashi Oozeki: Renewable Energy Research Center, National Institute of Advanced Industrial Science and Technology, 2-2-9, Machiikedai, Koriyama 963-0298, Japan
Takahiro Matsuura: TEPCO Research Institute, Tokyo Electric Company Holdings, 4-1, Egasaki-cho, Tsurumi-ku, Yokohama 230-0002, Japan
Satoshi Miyazaki: TEPCO Research Institute, Tokyo Electric Company Holdings, 4-1, Egasaki-cho, Tsurumi-ku, Yokohama 230-0002, Japan
Hiromu Hamada: TEPCO Research Institute, Tokyo Electric Company Holdings, 4-1, Egasaki-cho, Tsurumi-ku, Yokohama 230-0002, Japan
Teru Miyazaki: TEPCO Research Institute, Tokyo Electric Company Holdings, 4-1, Egasaki-cho, Tsurumi-ku, Yokohama 230-0002, Japan

Energies, 2022, vol. 15, issue 3, 1-16

Abstract: Virtual inertia control is a methodology to make inverter-based resources (IBR) behave like a synchronous machine. However, an IBR cannot fully emulate the response of synchronous machine because of its low-current capacity. When the inertial response of an IBR is affected by the current limitation, the synchronization of the synchronous machine simulated virtually inside the IBR controller with the other synchronous generators in the grid is affected, which may cause step-out of the simulated generator. We propose a methodology which can keep the synchronization by modifying internal induced voltage of the simulated generator to follow the system voltage change. The proposal is validated by the simulation using a nine-bus transmission system model including two synchronous generators and a large-scale IBR. The result of the generator trip simulation shows that the proposed method suppresses the phase angle variation while the current is limited, and avoids the instability regarding the synchronism. Furthermore, the impact of the current limitation on frequency stability is also evaluated through the simulation study and it is found that as the amount of output suppression increases, the frequency nadir falls, but the rate-of-change of frequency is hardly affected.

Keywords: grid-forming; grid-following; virtual synchronous machine; current limitation; internal induced voltage (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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