Power conversion system

A power conversion system comprising:

• an inverter circuit operable with electric power supplied from an alternating-current power source;
• a harmonic reducer connected to the alternating-current power source;
• and
• a synchronizer,
• the inverter circuit including a circuit main portion and a conversion control unit configured to control the circuit main portion,
• the harmonic reducer including a current control unit configured to perform control to reduce a harmonic current flowing to the alternating-current power source,
• the current control unit being configured as a computer different from the conversion control unit,
• the synchronizer being configured to synchronize a state of the harmonic reducer with a state of the inverter circuit, and
• the synchronizer being a synchronization signal generation section included in one of the conversion control unit and the current control unit, the synchronization signal generation section being configured to generate a synchronization signal synchronized with an operation clock of the one of the conversion control unit and the current control unit and to transmit the synchronization signal to the other of the conversion control unit and the current control unit.