A Novel Algorithm for Harmonic EliminationOn Grid Converter in the Control System of Variable Speed ConstantFrequency Wind Power Generator

摘要

In this paper, a novel algorithm for harmonic elimination was presented based onsimulation and experiment on three phase PFC rectifier when the load is pure resistance anddoubly-fed machine, the principle of harmonic generation in a PWM converter has been analyzed.The harmonic that make evidence influence can be got through Fourier transform. It was transformedthrough space-vector algorithm modified and compensate to the algorithm that generate the PWMpulse. Thereby the selected harmonic that make evidence influence was eliminated. at last, in thepaper the results of simulation and experiment can testify the method can not only eliminate thespecial harmonic, but also improve the dynamic properties of the whole system.