Study on Low Voltage High-power Multi-branch Permanent Magnet Synchronous Motor

There are many disadvantages in the systems which driven by high voltage AC motors. People are looking for the solutions to these problems for many years. In this paper, a novel idea that adopting general low voltage converters supply power to multi-branch permanent magnet synchronous motor (PMSM) is reported. The stator windings of this multi-branch PMSM are designed into multi branches, and these branches compose independent windings which are leaded out three-phase output-ends. In this way, the stator current can be separated. A sample PMSM has been manufactured and some experiments have been made on it.