[1]宋平岗,周鹏辉,周振邦.新型牵引供电系统的改进下垂控制策略[J].机车电传动,2019,(06):33-37.[doi:10.13890/j.issn.1000-128x.2019.06.008]
 SONG Pinggang,ZHOU Penghui,ZHOU Zhenbang.Improved Droop Control Strategy of a Novel Traction Power Supply System[J].Electric Drive for Locomotives,2019,(06):33-37.[doi:10.13890/j.issn.1000-128x.2019.06.008]
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新型牵引供电系统的改进下垂控制策略()
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机车电传动[ISSN:1000-128X/CN:43-1125/U]

卷:
期数:
2019年06期
页码:
33-37
栏目:
研究开发
出版日期:
2019-11-10

文章信息/Info

Title:
Improved Droop Control Strategy of a Novel Traction Power Supply System
文章编号:
1000-128X(2019)06-0033-05
作者:
宋平岗1周鹏辉1周振邦2
(1. 华东交通大学 电气与自动化工程学院, 江西 南昌 330013;2. 中车株洲所电气技术与材料工程研究院, 湖南 株洲 412001)
Author(s):
SONG Pinggang1 ZHOU Penghui1 ZHOU Zhenbang2
( 1. School of Electrical and Automation Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, China;2. CRRC ZIC Research Institute of Electrical Technology & Material Engineering, Zhuzhou, Hunan 412001, China )
关键词:
多端直流输电牵引供电系统改进下垂控制模块化多电平换流器环流抑制仿真
Keywords:
multi-terminal direct current (MTDC) traction power supply system improved droop control modular multilevel converter (MMC) circulating current suppress simulation
分类号:
U223.5
DOI:
10.13890/j.issn.1000-128x.2019.06.008
文献标志码:
A
摘要:
为解决目前交流电气化铁路中存在的电能质量和过分相问题,研究了一种基于MMC-MTDC的新型牵引供电系统。针对负载频繁变化引起网侧功率出现较大超调现象,提出了一种基于PI控制器的改进下垂控制策略,该策略兼顾了稳定直流电压和改善功率流两个方面,并对该控制策略的稳态和暂态特性进行了分析。针对单相MMC存在的二倍频环流会引起直流侧电压和功率的二倍频波动,同时对网侧功率波动造成影响的问题,采用比例复数积分(PCI)控制器设计了同时适用于三相和单相MMC的环流抑制器。最后,在PSCAD/EMTDC中搭建详细仿真模型,模拟牵引供电系统的运行工况,验证所提控制方法的有效性。
Abstract:
To solve the problems of power quality and neutral section passing in AC electrified railway, a new traction power supply system based on MMC-MTDC was studied. Aiming at the phenomenon of large power overshoot caused by frequent load changes, an improved droop control strategy based on PI controller was proposed, which took into account both the stabilization of DC voltage and the improvement of power flow. The steady-state and transient characteristics of the control strategy were analyzed. In order to solve the problem that the double-frequency circulating current of single-phase MMC would cause the double-frequency fluctuation of DC side voltage and power, and also affect the power fluctuation of network side, the proportional complex integral (PCI) controller was used to design a circulating current suppressor suitable for both three-phase and single-phase MMC. Finally, a detailed simulation model was built in PSCAD/EMTDC to simulate the operation conditions of the traction power supply system and verify the effectiveness of the proposed control method.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介:宋平岗(1965—),男,博士,教授,主要从事电力电子与新能源方面的研究。
更新日期/Last Update: 2019-11-10