Optimal compensation control method and device for power quality based on photovoltaic converter

Abstract

The application discloses a power quality optimal compensation control method and device based on a photovoltaic converter, and by exploring the self-regulation potential of the photovoltaic converter, the photovoltaic converter can have renewable energy consumption capacity and can independently regulate power quality, so that the power quality optimal compensation control of the photovoltaic converter is realized. The basic principle of the control method is that reactive power, negative sequence and harmonic current components are detected from a compensation object, and in combination with the output condition of the current photovoltaic converter, the compensation current reference value of the photovoltaic converter is generated through the instruction optimization of the power quality treatment current, so that the purpose of maximizing the utilization of the photovoltaic converter capacity to treat the power quality is achieved.

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