异步电动机双绕组电容调速的研究

Study on Speed-regulation of Asynchronous Motors by Means of Double Windings and Capacitors

采用单层对称排布的定子双绕组结构,用分级的电容器调节其副绕组的电流而使其合成的旋转磁势及电磁转矩变化,以较低的造价与较高的功率因数实现了异步电动机的调速。

The single-layer, symmetrically-arranged, double stator windings were employed while the graded capacitor was applied to adjust the current in the secondary windings, so as to regulate the synthetic rotating field potential and electromagnetic torque, thus, the speed- regulation of the asynchronous motor was achieved with the adavantages of low productive price and high power factor.