Discussion about the Accuracy of Harmonic Analysis and Sentinel Achieve

Harmonic analysis is power quality test of an important part of accurate test for harmonic compensation provided an importantbasis. This article focuses on the non-synchronous sampling Harmonic Analysis under the theory,given the C language simulation,andcompare the different characteristics of the window function. FFT algorithm to do the improvements,the floating-point operations will bedesignated the operator,to make it more consistent with the characteristics of the project.