DISTRIBUTED CONTROL POWER SYSTEM

摘要

PROBLEM TO BE SOLVED: To remove the restriction of the flexibility and the extendibility of a power system and to reduce cost by simplifying the system design. SOLUTION: A distributed control power system 1 is formed of voltage control-type inverter devices 2 and 2b which adopt distributed control and current control-type inverters 3a and 3b. They are connected in parallel and power is supplied to a load 4. The voltage control-type inverter device 2a is formed of a voltage-type inverter 20a, outputting AC with a voltage command and an inverter control circuit 21a, giving the voltage command Vrefa, formed of a distributed control characteristic and controlling driving. An inverter control circuit 21a is provided with a distributed control characteristic and obtains the voltage command Vrefa, based on output power Pa outputted from the voltage-type inverter 20a and a frequency command fa formed from the distributed control characteristic. The voltage control-type inverter device 2b is similarly constituted.