【摘要】 本文提出了模拟数字混合采样方法 ,推导了两种算法 ,分析了两种算法的误差。同时分析了量化误差对该两种算法的影响 ,电压、有功功率测量的线性误差等。文中提出的新采样方法比传统采样方法测量电参量准确度有较大提高 ,其功率测量准确度可达 0 0 3%。更多还原

【Abstract】 The paper presents an analogue digital composite sampling method,gives two kinds of algorithms and analyzes the errors of the algorithms.At the same time,the paper analyzes the effects of quantizing error on the two kinds of algorithms,linear error on the power and voltage measurement.Compared with the old sampling algorithm,the new sampling algorithm has made measurement accuracy significantly improved and makes power measurement accuracy as high as 0.03%更多还原