Validation of Electromechanical Transient Model for Large-Scale Renewable Power Plants Based on a Fast-Responding Generator Method

Dawei Zhao (), Yujie Ning, Chuanzhi Zhang, Jin Ma, Minhui Qian and Yanzhang Liu
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Dawei Zhao: Department of Automation, Nanjing University of Science and Technology, Nanjing 210094, China
Yujie Ning: Department of Automation, Nanjing University of Science and Technology, Nanjing 210094, China
Chuanzhi Zhang: Department of Automation, Nanjing University of Science and Technology, Nanjing 210094, China
Jin Ma: Department of Electrical and Information, University of Sydney, Sydney, NSW 2006, Australia
Minhui Qian: Department of Renewable Energy, China Electric Power Research Institute, Beijing 100192, China
Yanzhang Liu: Department of Renewable Energy, China Electric Power Research Institute, Beijing 100192, China

Energies, 2024, vol. 17, issue 23, 1-15

Abstract: The requirements for accurate models of renewable energy power plants are urgent for power system operation analysis. Most existing model research in this area is for wind turbine and photovoltaic (PV) power generation units; a rare renewable power plant model validation mainly adopts the single-machine infinite-bus system. The single equivalent machine method is always used, and the interactions between the power plant and the grid are ignored. The voltage at the interface bus is treated as constant, although this is not consistent with its actual characteristics. The phase shifter method of hybrid dynamic simulation has been applied in the model validation of wind farms. However, this method is heavily dependent on phasor measurement units (PMU) data, resulting in a limited application scope, and it is difficult to realize the model error location step by step. In this paper, the fast-responding generator method is used for renewable power plant model validation. The complete scheme comprising model validation, error localization, parameter sensitivity analysis, and parameter correction is proposed. Model validation is conducted based on measured records from a large-scale PV power plant in northwest China. The comparison of simulated and measured data verifies the feasibility and accuracy of the proposed scheme. Compared to the conventional model validation method, the maximum deviation of the active power simulation values obtained by the method proposed in this paper is only 38.8% of that of the conventional method, and the overall simulation curve fits the actual measured values significantly better.

Keywords: hybrid dynamic simulation; fast-responding generator; renewable power plant; model validation; parameter calibration (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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