The work is the theory base of developing online power quality analyzer. The online power quality analyzer is designed and implemented in this paper.

依据制定的电能质量国家标准，归纳了各项电能质量技术指标的测量原理和计算方法，为电能质量在线分析仪的研制提供了理论依据和算法。

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It introduces the whole design of a power quality analyzer, including the software and hardware design. The analyzer is based on TMS320VC5402. It can monitor the power quality in effect.

介绍了一个基于TMS320 VC 5402的电力质量分析系统的总体设计方案、硬件电路设计及其软件设计。

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