本文研究和给出电气量测量交流采样的算法，着重研究三相不平衡及波形畸变工况下无功功率的测量算法。
This paper introduces the AC sampling arithmetic and emphasizes the study of measurement arithmetic under the unbalanced and distorted condition.
它采用可编程控制器(PLC)作为系统的运算控制核心，利用液压式压力发生器，实现了测量点处无电气量。
It utilized hydraulic press transducer and adopted PLC as the core of the system, which realized no electrical quantity at measure point.
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