By comparison of test results of two prototypes, it is shown that the capacitor three phase induction generator is worth being popularized in winding power system.

通过两台样机进行实验对比，实验数据表明三相电容式异步发电机在风电系统中有很高的应用推广价值。

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Based on DDS technique, the signal generator can create two signals, i. e. the sinewave and the square wave signals, and its amplitude, frequency and phase can be continuously adjusted.

采用直接数字合成（DDS）技术构建双路正弦波及同步方波发生器，实现幅值、频率、相位等连续调节；

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First of all, the theory of double-fed induction generator is introduced. Mathematical model of double-fed induction generator in the two-phase synchronous rotating coordinate system is established.

首先，介绍双馈发电机的基本工作原理，建立在两相同步旋转坐标系下双馈发电机的数学模型。

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