Volume 38, Number 5, October 2020
|Page(s)||1112 - 1121|
|Published online||08 December 2020|
Improvement of Quadruple Structure and Optimization of Control Algorithm for Co-Phase Traction Power Supply System
School of Transportation Engineering, Central South University, Changsha 417000, China
Co-phase power supply is one of the key technologies to solve the technical bottlenecks such as electrical phase separation zone, poor power quality and defects in structure and control algorithms in traditional traction power supply systems and single co-phase power supply schemes, and an inevitable way to realize the development of electrified railways in the direction of safety, high speed and heavy load. Based on the single co-phase power supply technology, a novel quadruple co-phase power supply scheme with negative sequence elimination and to suppress reactive power and harmonic better for the two aspects of the system structure improvement and control algorithm optimization is proposed by combining the technologies of power system flexible transmission grid-connected and multiple inverters. Finally, the simulation model for the novel co-phase traction power supply system was designed and built, and the present method was verified by a set of simulation experiments so as to obtain the expected results.
Key words: co-phase traction power supply / multiple inverter / power flow control / power quality
关键字 : 同相牵引供电 / 多重化逆变 / 潮流控制 / 电能质量
© 2020 Journal of Northwestern Polytechnical University. All rights reserved.
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