[1]李婷婷,孙伟鑫,刘 川,等.一种基于阻抗重构的城市轨道交通牵引系统直流侧振荡抑制方法[J].控制与信息技术,2021,(02):49-55.[doi:10.13889/j.issn.2096-5427.2021.02.008]
 LI Tingting,SUN Weixin,LIU Chuan,et al.A Method of Impedance Reconstruction Based DC-link Oscillation Suppression for Urban Rail Transit Traction System[J].High Power Converter Technology,2021,(02):49-55.[doi:10.13889/j.issn.2096-5427.2021.02.008]
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一种基于阻抗重构的城市轨道交通牵引系统直流侧振荡抑制方法()
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《控制与信息技术》[ISSN:2095-3631/CN:43-1486/U]

卷:
期数:
2021年02期
页码:
49-55
栏目:
电力与传动控制
出版日期:
2021-04-05

文章信息/Info

Title:
A Method of Impedance Reconstruction Based DC-link Oscillation Suppression for Urban Rail Transit Traction System
文章编号:
2096-5427(2021)02-0049-07
作者:
李婷婷1孙伟鑫2刘 川1蒲俊楷1葛兴来2
(1.成都运达科技股份有限公司,四川成都 610097;2.西南交通大学磁浮技术与磁浮列车教育部重点实验室,四川 成都 610031)
Author(s):
LI Tingting1 SUN Weixin2 LIU Chuan1 PU Junkai1 GE Xinglai2
( 1.Chengdu Yunda Technology Co., Ltd., Chengdu, Sichuan 610097, China; 2.Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle, Southwest Jiaotong University, Chengdu, Sichuan 610031, China )
关键词:
阻抗重构振荡抑制牵引系统电压失稳
Keywords:
impedance reconstruction oscillation suppression traction system voltage instability
分类号:
TM461
DOI:
10.13889/j.issn.2096-5427.2021.02.008
文献标志码:
A
摘要:
由于主电路参数失配以及逆变器-电机系统在特定工况下存在的负阻抗特性,城市轨道交通牵引系统容易发生直流侧母线电压振荡的现象。为解决此问题,文章建立了牵引系统的特征方程模型,分析了直流侧滤波参数对系统稳定性的影响。针对逆变器-电机驱动系统,提出了一种基于阻抗重构的振荡抑制方法。其通过补偿控制器输出的d轴和q轴参考电压信号,改善了逆变器-电机系统的负阻抗特性,从而使系统稳定运行。仿真与硬件在环实验结果表明,采用该抑制策略可有效抑制直流侧母线电压振荡,从而提高系统的稳定性。
Abstract:
Due to the mismatch of main circuit parameters and the negative impedance characteristics of inverter-motor system under specific operating conditions, urban rail transit traction system is prone to DC-link voltage oscillation. In order to solve this problem, this paper establishes a characteristic equation model of traction system, and analyzes the influence of DC-link filter parameters on system stability. For inverter-motor drive system, it proposes an oscillation suppression method based on impedance reconstruction. By compensating d axis and q axis reference voltage signal of controller, negative impedance characteristic of the inverter-motor system is improved so that the system is stable. Simulation and hardware-in-the-loop experiment results show that the suppression strategy can effectively suppress the oscillation and improve the stability of system.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-09-21
作者简介:李婷婷(1986—),女,硕士,主要研究方向为轨道交通车辆牵引控制。
基金项目:国家自然科学基金项目(51677156)
更新日期/Last Update: 2021-05-06