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[期刊]

Grid Integration Evaluation of Virtual Synchronous Generators Using a Disturbance-Oriented Unified Modeling Approach

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Author:

Liu, Jia (Liu, Jia.) | Golpira, Hemin (Golpira, Hemin.) | Bevrani, Hassan (Bevrani, Hassan.) | Unfold

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Abstract:

To analyze the grid integration effect of a virtual synchronous generator (VSG), this paper proposes a simple power system modeling method. It is shown that for a specific disturbance, by simplifying the original network to a radical n generators single-load model, its state-space small-signal model can be obtained using a unified formula, as long as the single generator infinite bus model of each generator is given. Case studies based on the IEEE 9-bus test system as well as the New York New England test system show high efficiency of the proposed modeling to represent slow power and frequency deviations. Modal analyses give insight into how system poles are synthesized by individual generator poles, and how different designs of VSGs affect the system oscillation modes. Potential errors due to the topology simplification and the measures to avoid them are discussed. The time-domain results and modal analyses highlight some important features of VSG, which are overlooked in previous studies.

Keyword:

Damping Distributed power generation Generators governors inverters Load modeling Mathematical model power system dynamics Power system dynamics Power system stability state-space methods steam turbines synchronous generators Synchronous generators virtual synchronous generators

Author Community:

  • [ 1 ] [Liu, Jia]Xi An Jiao Tong Univ, Sch Elect Engn, Xian 710049, Peoples R China
  • [ 2 ] [Golpira, Hemin]Univ Kurdistan, Dept Elect & Comp Engn, Sanandaj 6617715175, Iran
  • [ 3 ] [Bevrani, Hassan]Univ Kurdistan, Dept Elect & Comp Engn, Sanandaj 6617715175, Iran
  • [ 4 ] [Ise, Toshifumi]Nara Gakuen Inc Educ Inst, Nara 6368503, Japan

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Source :

IEEE TRANSACTIONS ON POWER SYSTEMS

ISSN: 0885-8950

Year: 2021

Issue: 5

Volume: 36

Page: 4660-4671

6 . 6 6 3

JCR@2020

ESI Discipline: ENGINEERING;

ESI HC Threshold:30

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 5

SCOPUS Cited Count:

30 Days PV: 12

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