| Abstract |
Novel topology of an inverter that can independently control two permanent magnet synchronous motors (PMSMs) is proposed. In conventional, 12 switching devices, i.e. two three-phase three-leg inverters, are required to control two PMSMs; thus, the equipment size becomes large. The proposed inverter requires the same number of switches as the conventional inverter, i.e. only 6 switching devices. In this paper, the circuit configuration and control principle of the proposed inverter are introduced; and a controller was constructed using an FPGA. Moreover, the basic characteristics of the inverter, which is connected with two Y-connected RL loads, are shown through computer simulations and experiments. As a result, it was verified through the simulations and the experiments that the proposed inverter could output different amplitude and frequency for each load. |
