It's discussed that the method of RMS and frequency measurements directly from the wavelet transform data associated with each sampling sine voltage (current) element pair containing harmonic.

讨论了对含谐波的正弦电压(电流)采样值直接进行小波变换计算基波、谐波电压(电流)的有效值及频率的方法。

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On the basis of the digital signal processing theory and the characters of voltage and current, the system structure of a kind of new voltage (current) RMS calculator is proposed.

本文在数字信号处理理论的基础上，通过对电压和电流信号特性的分析，研究了一种新的计算电压和电流有效值的体系结构。

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The RMS converters of voltage and current have the advantages of high speed and precision, and with the feedback of RMS, the fluctuate of power voltage can be compensated at high precision.

电压、电流真有效值变换精度高、速度快，电压真有效值负反馈闭环控制主回路网压波动补偿精度高；

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