A Generalized Load Model Considering the Fault Ride-Through Capability of Distributed PV Generation System

Haiyun Wang, Qian Chen, Linyu Zhang, Xiyu Yin, Han Cui, Zhijian Zhang, Huayue Wei and Xiaoyue Chen ()
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Haiyun Wang: State Grid Beijing Electric Power Company Electric Power Scientific Research Institute, Beijing 100075, China
Qian Chen: State Grid Beijing Electric Power Company Electric Power Scientific Research Institute, Beijing 100075, China
Linyu Zhang: School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China
Xiyu Yin: School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China
Han Cui: School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China
Zhijian Zhang: State Grid Beijing Electric Power Company Electric Power Scientific Research Institute, Beijing 100075, China
Huayue Wei: State Grid Beijing Electric Power Company Electric Power Scientific Research Institute, Beijing 100075, China
Xiaoyue Chen: School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China

Energies, 2024, vol. 17, issue 14, 1-15

Abstract: Considering the voltage stability problem brought by large-scale distributed PV access to the distribution network, this paper proposes a generalized load model that considers the fault ride-through capability of distributed PV. Firstly, the detailed model of the distribution network is established, and the detailed model is calibrated based on the measured data, the simulation errors are below 1%. And then establish a generalized load model considering distributed PV high and low voltage traversal ability. The sensitivity analysis results are used to rank the parameters to be identified, and the parameters with higher sensitivity are identified. The parameters are obtained from the detailed model and measured data, and four sets of parameters are identified and simulated under different PV penetration rates and fault conditions. The calculated fitting errors are less than 1%. The results show that the generalized load gray box model of the distribution network with distributed PV high and low voltage ride-through capability can reflect the dynamic characteristics of the distribution network well.

Keywords: distributed PV generation system; high voltage ride-through; low voltage ride-through; generalized load model; sensitivity analysis (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: 2024
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