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Three-Phase Steady-State Models of Distributed Generators with Different Control Strategies
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  • Qijia Yang,
  • Zhengchun Du,
  • Yu Zhang,
  • Xiaotian Yuan
Qijia Yang
Xi’an Jiaotong University

Corresponding Author:[email protected]

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Zhengchun Du
Xi'an Jiaotong University
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Yu Zhang
North China Branch of State Grid Corporation of China
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Xiaotian Yuan
Xi'an Jiaotong University
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Abstract

This paper proposes three-phase steady-state models for distributed generators (DGs) with different negative control strategies. An augmented rectangular load flow method is used for three-phase distribution systems. For two types of DGs with power electronic devices: photovoltaic power generators and doubly-fed induction generators, the nodal voltage equations and output power equations are derived. Moreover, under unbalanced conditions, the strategies for mitigating the effects caused by negative sequence components are formulated as functions of the nodal voltage and the injected current. Furthermore, the models are incorporated into an augmented rectangular load flow method with nodal voltage and injected current as state variables in three-phase systems. Case studies are conducted to verify the correctness and accuracy of the proposed models by comparing the results obtained from MATLAB and PSCAD.
28 Sep 2023Submitted to IET Generation, Transmission & Distribution
27 Oct 2023Submission Checks Completed
27 Oct 2023Assigned to Editor
01 Nov 2023Review(s) Completed, Editorial Evaluation Pending
02 Nov 2023Reviewer(s) Assigned
20 Nov 2023Editorial Decision: Revise Major