研究目的
To develop an active power control of photovoltaic power generation (PV) system for supporting grid frequency regulation in two different forms, i.e. slow frequency control contributing to load – frequency control (LFC) and fast frequency control contributing to inertial response of synchronous generators.
研究成果
The proposed dual P-f droop control for slow and fast frequency control can work independently without affecting each other, effectively reducing both slow and fast frequency fluctuations in the grid.
研究不足
The estimation method of Pmpp based on Isc and Voc is left as a future work. The proper setting of droop characteristics is not included in the scope of this paper.
1：Experimental Design and Method Selection:
The study employs a dual active power – frequency (P–f) droop control for slow and fast frequency control.
2：Sample Selection and Data Sources:
Uses a PV simulator, an impedance load, an electric control unit (ECU), and a voltage source.
3：List of Experimental Equipment and Materials:
Includes a three-phase inverter power source for simulating PV system, a DC current source, and a set of series diodes to realize I-V characteristics of PV module.
4：Experimental Procedures and Operational Workflow:
Involves adjusting the active power output based on frequency deviation using different droop characteristics for slow and fast frequency control.
5：Data Analysis Methods:
Analyzes the performance of the proposed control in reducing frequency fluctuations.
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