베터리 충전용 발전기 시스템의 고효율화

Generally, in the case of an generator system for charging a battery energy storage device (BESS), it is necessary to configure a power converter capable of varying the voltage of the diesel generator to charge the battery. In the case of such an generator system, The power conversion loss is generated in proportion to the increase of the power conversion step. It has a very bad influence on the energy efficiency by charging and discharging the ESS. In this thesis, In order to minimize the power conversion steps configured in the generator system for charging a battery, Controlling the output voltage by controlling the excitation current of the generator, and proposes a method capable of charging the battery. The validity was verified by simulation.