There is no doubt that Hybrid Electrical Vehicle can preserve the environment. These vehicles have several electrical power sources. The power flows among these sources are controlled generally using DC/DC converters. Therefore the DC/DC converter is the important device in HV. This paper shows the method how to reduce the inverter device current of the Multi-Functional Converter System (MFCS) in our laboratory. The MFCS consists of a motor, inverters and additional wires except of DC/DC converters. The MFCS can realize controlling the power among several AC or DC electrical power sources besides controlling motor torque. The characteristic of this MFCS in this paper is that the MFCS has two three-phase star connected coils in one motor. The proposed method is realized using the characteristic. This paper shows the validity of the proposed method using the experiment examinations.
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