An Approach Based on SMS to Suppress Low-Frequency Oscillation in the EMUs and Traction Network Coupling System Using PBC

被引：0
|
作者：
Wang Y. [1 ]
Yang S. [1 ]
Song K. [1 ]
Wu M. [1 ]
机构：
[1] School of Electrical Engineering, Beijing Jiaotong University, Beijing
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2020年 / 35卷 / 03期
关键词：
Electric multiple units(EMUs) and traction network coupling system; Low-frequency oscillation; Passivity-based control; PWM rectifier; Sliding mode structure; Stability analysis;
D O I：
10.19595/j.cnki.1000-6753.tces.190099
中图分类号：
学科分类号：
摘要：
In recent years, there have been a number of low-frequency oscillations (LFO)of electric multiple units and traction network coupling system (EMUs-TNCS) in high-speed railways, leading to traction blockade of the EMUs. Taking the CRH5 EMUs as an example, this paper presents a double closed-loop control strategy for EMUs PWM rectifiers based on current passivity-based control of sliding mode structure (CPBC-SMS) to suppress the LFO. Firstly, a return-ratio matrix model of the EMUs-TNCS is established, and the generation mechanism of the LFO is analyzed by using the G-sum norm criterion, obtaining the critical condition of the LFO. Then, according to operating conditions of the LFO, the state space model of each EMUs rectifier is derived in dq-frame. Subsequently, the internal loop current controller based on CPBC-SMS is designed. Stability analysis and simulation results validate that the proposed control provides effective capability of the LFO suppression with better steady-state and dynamic performance compared to several conventional methods. © 2020, Electrical Technology Press Co. Ltd. All right reserved.
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页码：553 / 563
页数：10
相关论文
共 25 条
  • [1] Wang H., Wu M., Review of low-frequency oscillation in electric railways, Transactions of China Electrotchnical Society, 30, 17, pp. 70-78, (2015)
  • [2] Ren B., Du W., Wang H., Impact of strong dynamic interaction between UPFC and system on electromechanical oscillation mode, Transactions of China Electrotechnical Society, 33, 11, pp. 2520-2534, (2018)
  • [3] Ma Q., Chen L., Traction power supply system harmonic resonance characterization, Electrical Engineering, 13, 9, pp. 38-43, (2012)
  • [4] Jin T., Liu D., Power system low-frequency oscillation identification based on the generalized morphological method and improved matrix pencil algorithm, Transactions of China Electrotechnical Society, 32, 6, pp. 3-13, (2017)
  • [5] Gong H., Jang W., Wang Y., Et al., A survey on damping low-frequency oscillation based on coordination strategy of static synchronized compensator modulation, Transactions of China Electrotechnical Society, 32, 6, pp. 67-75, (2017)
  • [6] Xie J., Cheng Y., Wang X., Estimation of electromechanical oscillation modes based on NExT-PRCE method, Transactions of China Electrotechnical Society, 33, 1, pp. 121-130, (2018)
  • [7] Chen B., Lin T., Chen R., Et al., Characteristics of multi-band oscillation for direct drive wind far minter faced with VSC-HVDC system, Transactions of China Electrotechnical Society, 33, pp. 176-184, (2018)
  • [8] Li Q., A electrical matching problem about train-catenary system in electric railway, Electric Railway, 12, 3, pp. 13-16, (2014)
  • [9] Zhou Y., Hu H., He Z., Et al., Analysis of low-frequency oscillation in train-traction network coupling system of electrified railway, Proceedings of the CSEE, 37, 9, pp. 72-80, (2017)
  • [10] Liu S., Lin F., Yang Z., Et al., Control method of four quadrant converter to restrain low-frequency oscillation of electrified railway, Transactions of China Electrotechnical Society, 31, pp. 76-83, (2016)
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