摘要
介绍了一种谐波功率测量的数字信号处理算法。通过在采样间隔中的迭代运算可计算出电压电流的频谱,进而可实时计算出谐波功率,这种算法比传统的FFT算法实用、效率更高。最后描述了采用DSP及FPGA等集成电路实现上述测量算法的谐波功率测量仪的系统设计原理。
In this paper a digital signal processing algorithm for the harmonic power measurement is presents. Spectrum on the voltage and current can be computed with iterative operation during the sampling interval. The results of spectrum are used to compute the harmonic power in real time. The algorithm is more efficient than the conventional FFT algorithm. Then the principle of designing the harmonic power measurement instrument to implement the algorithm by using DSP and FPGA devices is described.
出处
《电测与仪表》
北大核心
2001年第10期12-15,29,共5页
Electrical Measurement & Instrumentation
关键词
DSP算法
谐波分析
功率测量
DSP algorithm
harmonic analysis
power measurement
