摘要
新型混合式贯通牵引供电装置(NH-ACTPSD)为消弭电分相与负序等电能质量问题提供了契机,但NH-ACTPSD的内部模块故障将引发网侧负序电流、健康模块功率越限等问题。为此,提出一种面向NH-ACTPSD内部模块故障的主动容错控制技术,包含输入与输出模块故障两种情况。在输入模块故障时,分别提出动态调制系数与功率局部不平衡控制方法,通过健康模块间的协调控制有效解决模块功率越限与网侧负序电流问题;在输出模块故障时,采用主动旁路与健康模块升压运行的方法,实现NH-ACTPSD额定电压与额定功率输出。最后,实验结果表明了所提主动容错控制技术的可行性与有效性。
The novel hybrid advanced co-phase traction power supply device(NH-ACTPSD)provides an opportunity to eliminate the problems of neutral section and negative sequences.However,the internal module failure of NH-ACTPSD will cause problems such as the grid-side negative sequence current and the healthy module power overload.Therefore,an active faulttolerant control technology for the internal module fault of NH-ACTPSD is proposed,which includes both input and output module faults.When the input module is faulty,the dynamic modulation coefficient and the local unbalance control method of power are proposed to effectively solve the problems of healthy module power overload and grid-side negative sequence current through the coordinated control of healthy modules.When the output module is faulty,the methods of active bypass and healthy module boosting operation are adopted to realize the rated voltage and power output of NH-ACTPSD.Finally,the experimental results show the feasibility and effectiveness of the proposed active fault-tolerant control technology.
作者
王鑫
郭祺
涂春鸣
侯玉超
肖凡
WANG Xin;GUO Qi;TU Chunming;HOU Yuchao;XIAO Fan(National Electric Power Conversion and Control Engineering Technology Research Center(Hunan University),Changsha 410082,China)
出处
《电力系统自动化》
EI
CSCD
北大核心
2023年第17期169-177,共9页
Automation of Electric Power Systems
基金
国家重点研发计划资助项目(2021YFB2601504)。
关键词
牵引供电装置
模块故障
容错控制
负序抑制
功率越限
动态调制系数
traction power supply device
module fault
fault-tolerant control
negative sequence suppression
power overload
dynamic modulation coefficient
