Power conversion device, power conversion method, and non-transitory computer-readable storage medium storing power conversion program

A power conversion device for supplying alternating current power to a power system as a voltage source based on a power command value generated by a power management device, the power conversion device comprising:

• an inverter configured to convert direct current power of a distributed power source into alternating current power;
• a control parameter management circuitry configured to manage a control parameter of the inverter;
• a detector configured to detect output power of the inverter and to output the output power as a detected value;
• and
• an inverter controller configured to generate a voltage command value based on the detected value, the power command value, and the control parameter, the voltage command value being used to control the inverter,
• wherein the control parameter is related to a drooping characteristic that is a correlation between the output power of the inverter and a frequency, and
• the inverter controller changes the drooping characteristic based on the detected value and the power command value and generates the voltage command value based on the changed drooping characteristic.