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The system includes a permanent magnet three-phase motor and an electronic current controlled inverter by pulse width modulation. The motor has twenty-two poles and twenty-four slots, three phases and a cylindrical outer rotor. This structure minimizes torque ripple and maximizes energy efficiently.

The system includes a permanent magnet three-phase motor and an electronic current controlled inverter by pulse width modulation. The motor has twenty-two poles and twenty-four slots, three phases and a cylindrical outer rotor. This structure minimizes torque ripple and maximizes energy efficiently. All coil windings are wound around the stator teeth. Several winding configurations are proposed and a special one with only one coil per slot. The motor phases are supplied by alternating rectangular current waveforms. A specific inverter control system is described to maximize efficiency and reduce current ripple and electromagnetic interference under motorizing or generating operations. The current control is realized by using the mosfets voltage for the current measurement.

대표청구항 ▼

The system includes a permanent magnet three-phase motor and an electronic current controlled inverter by pulse width modulation. The motor has twenty-two poles and twenty-four slots, three phases and a cylindrical outer rotor. This structure minimizes torque ripple and maximizes energy efficiently.

The system includes a permanent magnet three-phase motor and an electronic current controlled inverter by pulse width modulation. The motor has twenty-two poles and twenty-four slots, three phases and a cylindrical outer rotor. This structure minimizes torque ripple and maximizes energy efficiently. All coil windings are wound around the stator teeth. Several winding configurations are proposed and a special one with only one coil per slot. The motor phases are supplied by alternating rectangular current waveforms. A specific inverter control system is described to maximize efficiency and reduce current ripple and electromagnetic interference under motorizing or generating operations. The current control is realized by using the mosfets voltage for the current measurement. Isozumi, 074/007.E; US-5076109, 19911200, Isozumi, 074/007.A; US-5081874, 19920100, Isozumi, 074/007.A; US-5081875, 19920100, Isozumi et al., 074/007.R; US-5084631, 19920100, Shiroyama, 290/048; US-5086658, 19920200, Isozumi, 074/007.E; US-5097715, 19920300, Isozumi, 074/007.E; US-5099703, 19920300, Isozumi, 074/006; US-5105670, 19920400, Isozumi et al., 074/006; US-5111705, 19920500, Isozumi, 074/006; US-5111706, 19920500, McMillen, 074/007.C; US-5118960, 19920600, Sasamoto et al., 290/048; US-5126583, 19920600, Isozumi et al., 290/048; US-5129271, 19920700, Isozumi et al., 074/007.R; US-5130586, 19920700, Miyaji et al., 310/083; US-5154089, 19921000, Konishi, 074/007.E; US-5154090, 19921000, Konishi, 074/007.E; US-5156057, 19921000, Isozumi, 074/007.E; US-5157978, 19921000, Morishita et al., 074/007.E; US-5195389, 19930300, Isozumi, 074/007.E; US-5196727, 19930300, Isozumi et al., 290/048; US-5197342, 19930300, Nakagawa, 074/007.A; US-5208482, 19930500, Isozumi, 290/048; US-5255644, 19931000, Mills et al., 123/179.31; US-5291861, 19940300, Bartlett, 123/179.31; US-5349319, 19940900, Isozumi et al., 335/274; US-5367913, 19941100, Yumiyama et al., 074/007.A; US-5370009, 19941200, Isozumi, 074/007.C; US-5390555, 19950200, Gotou et al., 074/007.R; US-5471890, 19951200, Shiga et al., 074/007.E; US-5473956, 19951200, Murata et al., 074/007.E; US-5475270, 19951200, McRoy, 307/010.6; US-5505169, 19960400, Mummert et al., 123/179.3; US-5549011, 19960800, Shiga et al., 074/007.E; US-5557976, 19960900, Moribayashi et al., 074/007.E; US-5760487, 19980600, Kimura et al., 290/048; US-5839318, 19981100, Kimura et al., 074/007.R; US-5848552, 19981200, Mine et al., 074/007.E; US-5937696, 19990800, Ohya et al., 074/007.A; US-5945742, 19990800, Araki et al., 290/038.R; US-6109122, 20000800, Bori et al., 074/007.E; US-6268670, 20010700, Kuragaki et al., 310/075.R; US-6286378, 20010900, Kamei et al., 074/007.A