Energy saving test report of fan driven by converter which is referenced for user is extracted.

摘录了可供用户参考的变频器驱动风机节能试验报告。

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Based on the Back-to-Back Project for the Northwest and Central China Connection, This report studies the harmonics and ac filter at ac side in the HVDC converter station.

本论文以西北—华中联网背靠背直流换流站工程为基础，进行换流站交流侧谐波和交流滤波器的研究。

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