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Power equipment and harmonic suppression method in power equipment
Power equipment and harmonic suppression method in power equipment
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机译:电力设备及电力设备中的谐波抑制方法
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摘要
Provided is a power equipment which obtains a power saving effect according to the operation of an electric motor by providing a harmonic suppression function on the side of a power trunk line for supplying power to the electric motor without changing the electric motor side. The power equipment includes an electric motor (14) which is supplied with power from a power trunk line (12) connected to a power source transformer (11) to be operated. A harmonic generation unit (13) is provided in the power trunk line (12) and generates a harmonic voltage having a phase opposed to but the same degree as that of a harmonic voltage of a degree acting as a braking force on a rotor (14-2) in a rotational magnetic flux of harmonics generated between a stator (14-1) and the rotor when the electric motor (14) is operated.
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