| 摘要 |
A method for powering an electronically switched variable-reluctance polyphase electric motor from a rectified voltage source, including, for each phase, magnetising sequences (M1-3) during which the rectified voltage is applied to said phase, and demagnetising sequences (DM1-3) during which the inverse of the rectified voltage is applied to said phase. The method further comprises sensing disturbance in the current from the rectified voltage source, and, in response thereto, free-wheel sequences (RL1-3) during which the magnetic energy currently stored in at least one of the phases is substantially maintained therein. The method is useful for powering domestic appliances.
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