This paper proposes a new method of harmonic identification named DQ axis with Fourier (DQF) method. It lies on the basis of the DQ axis method enhanced by the sliding window Fourier analysis (SWFA). The SWFA component and the zero-sequence current considered inside the DQF method account for its excellent results on harmonic elimination. and phase balancing. https://www.findingthestory.com/product-category/propane-regulator/