A measuring device 3 installed at one or more power quality compensation target points to be subjected to power quality compensation in the distribution system, measuring current values and voltage values of the compensation target points and outputting them as measurement information 4; 3, the power quality monitoring and control device 1 that calculates the power quality compensation amount at the compensation target point, the solar power generation panel 6 that supplies power to the distribution system, and the solar power generation panel 6 Is installed between the power distribution system and the power condition with power quality compensation function for controlling the amount of power supplied by the photovoltaic power generation panel 6 to the power distribution system based on the power quality compensation amount obtained by the power quality monitoring control device 1 The device 2 is provided.
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