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Keywords = railway static power conditioners (RPC)

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18 pages, 3939 KiB  
Article
Feedforward Compensation of Railway Static Power Conditioners in a V/v Traction Power Supply System
by Yaoguo Li, Jiaxi Hu, Zhaohui Tang, Yongfang Xie and Fangyuan Zhou
Electronics 2021, 10(6), 656; https://doi.org/10.3390/electronics10060656 - 11 Mar 2021
Cited by 4 | Viewed by 2637
Abstract
Railway static power conditioners (RPC) usually improve the power quality of traction power supply systems only according to the active power of the load, which leads to inaccurate compensation. There are two factors that restrict the performance of RPC, one of which is [...] Read more.
Railway static power conditioners (RPC) usually improve the power quality of traction power supply systems only according to the active power of the load, which leads to inaccurate compensation. There are two factors that restrict the performance of RPC, one of which is the reactive power of the load, and the other is the system error. In order to eliminate the compensation error, a compensation optimization method is proposed. First, calculate the reactive power compensation value for the reactive power of the load. Second, introduce the amplitudes and phases of the primary currents of the V/v transformer as references for the compensation error caused by the system loss and then use fuzzy control to optimize compensation. The compensation method proposed in this paper is actually a feedforward control. In addition, this method balances the three-phase currents and enables RPC to be used in railway power supply systems with low locomotive power factors. The effectiveness of the method proposed in this paper has been confirmed by the simulation results. Full article
(This article belongs to the Special Issue Railway Traction Power Supply)
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