牵引供电系统无功补偿与谐波抑制

Reactive Power Compensation and Harmonics Restraint in Traction Power Systems

摘要:

介绍了牵引供电系统的结构特点，并针对铁道牵引系统负荷分时性、空载率高的特点，设计了机械投切电容器MSC(mechanical switch capacitor)及晶闸管控制电抗器TCR(thyristor control reactor)型的无功补偿及滤波装置，并在PSCAD软件中建模、仿真，分析了在不同牵引负荷情况下MSCTCR型静止无功补偿装置分组投切无功补偿效果和谐波滤除作用，为保证牵引供电系统的电能质量提供参考.

Abstract:

The paper presents a brief introduction to the characteristic of the traction power system.In view of the timesharing and high empty loading rate of the traction power systems,a special mechanical switch capacitor and thyristor control reactor static var compensator is designed.The effect of harmonic filtering in different types of loads and corresponding switch scheme is emulated in PSCAD.The study provides a reference for ensuring the power quality of the traction power system.