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Dc/ac inverter apparatus for three-phase and single-phase motors
Dc/ac inverter apparatus for three-phase and single-phase motors
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机译:用于三相和单相电动机的dc / ac逆变器设备
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摘要
Electrical power apparatus is disclosed for selectively powering either a three-phase ac motor or a single-phase ac motor. A dc/ac inverter is configured to provide appropriately phased input signals to the three input terminals of whichever motor is being driven, with no substantial hardware reconfiguration being required. In addition, a special clamp circuit prevents an excessively high voltage from being applied to the inverter by a variable-voltage power source such as a photovoltaic array, whereby the inverter need not be sized to accommodate voltage levels substantially greater than its design voltage.
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机译:公开了一种用于选择性地为三相交流电动机或单相交流电动机供电的电力设备。 dc / ac逆变器配置为在驱动任何电动机的三个输入端子上提供适当相位的输入信号,而无需进行大量的硬件重新配置。此外,特殊的钳位电路可防止通过诸如光伏阵列之类的可变电压电源将过高的电压施加到逆变器,从而不需要将逆变器的尺寸设计为可容纳实质上高于其设计电压的电压电平。
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