The paper analyzes the magnetic potential of current and voltage under phase shifting of+7.5°,-7.5° by means of vector method,reveals how to obtain new reference voltage vector shifting by+7.5 degree and-7.5 degree on the basis of the reference voltage at network side,thus forming a 24 pulse rectification system.In accordance with the electromagnetic transformation and rectification,the Fourier series analysis method is adopted to analyze and calculate the various harmonics and valve side and network side.The studies and analysis mentioned in the paper are able to provide reference for operation,maintenance and management of harmonics for traction power supply system of urban rail transit.
24-pulse rectificationextended triangle±7.5-degree phase shiftharmonicvectorFourier series
万方数据
维普
