Control device and power converter

A power converter comprising:

• an inverter interconnected to a power system via a power transmission/distribution line;
• and
• a control device having a virtual synchronous generator function, the control device being configured to control the inverter, the control device including
• a first output unit configured to
• receive a first command value, and active power from the inverter, and
• output a first phase of an output voltage of the inverter based on the active power, the first command value, and the virtual synchronous generator function,
• a second output unit configured to
• receive a second command value, and reactive power from the inverter, and
• output an amplitude of the output voltage based on the reactive power and the second command value,
• a phase correction value output unit configured to
• receive the first command value, and
• output a phase correction value, based on the first command value and a circuit constant of the power transmission/distribution line between the inverter and the power system,
• an addition unit configured to output a second phase obtained by adding the phase correction value and the first phase, and
• a third output unit configured to output a control signal to control the inverter, based on the amplitude of the output voltage and the second phase.