MDP-1 type controller for harmonic test and current sudden drop test as well as some problems in the practical testing were introduced.

介绍了MDP 1型谐波及骤降试验控制器及其在实际运行中遇到的一些问题。

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Test results proved that the motor had lower current harmonic, more efficient use of DC supply voltage than SPWM, less switch loss of power switch.

实验结果证明，系统电动机电流的谐波失真较小，直流母线电压利用率比常规的正弦波脉宽调制（SPWM）有了较大的提高，功率器件的开关损耗较小。

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The test results show that this method is feasible for real time detection of harmonic and reactive current of the active power compensator. The circuits are very simple.

实验结果表明，这种检测方法是可行的，而且电路非常简单，可用于实时检测有源电力补偿器的谐波与无功电流。

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