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.
关键词
24脉波整流/延边三角形/±7.5°移相/谐波/向量/傅氏级数
Key words
24-pulse rectification/extended triangle/±7.5-degree phase shift/harmonic/vector/Fourier series
维普
万方数据