In order to obtain accurate parameters for the low voltage ride-through model of photovoltaic power generation systems and meet the needs of safe and stable operation of photovoltaic power generation systems,a time-phased weighted parameter identification method for the low voltage ride through model of photovoltaic power generation systems was proposed.By analyzing the operational characteristics of photovoltaic power generation systems during low voltage ride through,a control model was established to obtain the key parameters of the low voltage ride through model for photovoltaic power generation systems.Then,based on sensitivity analysis,a time-phased weighted parameter identification strategy was implemented for the low penetration parameters.The simulation results show that the proposed identification method effectively improves the accuracy of parameter identification.
关键词
光伏发电系统/低电压穿越/分时段加权/灵敏度分析/参数辨识
Key words
photovoltaic power system/low voltage ride through/time-division weighting/sensitivity analysis/parameter identification
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