基于不对称接线平衡变压器的电气化铁路电能质量混合调节系统  

Asymmetrical Connection Balance Transformer Based Hybrid Power Quality Control System for Electrical Railway

作　　者：王鹏程 李勇[1] 安柏楠 张志文[1] 王姿雅[1] Wang Pengcheng;Li Yong;An Bonan;Zhang Zhiwen;Wang Ziya(College of Electrical and Information Engineering Hunan University,Changsha 410082 China)

机构地区：[1]湖南大学电气与信息工程学院

出　　处：《电工技术学报》2019年第21期4590-4600,共11页Transactions of China Electrotechnical Society

基　　金：湖南省重大科技攻关项目（2015GK1002）;湖湘青年英才项目（2015RS4022）;长沙市杰出青年创新项目（KQ1707003）资助

摘　　要：针对电气化铁路电能质量调节系统存在的补偿容量大、系统造价高等问题,提出了一种由铁路功率调节器(RPC)和感应滤波变压器(IFRT)组成的混合补偿系统。IFRT二次侧滤波绕组可在低压侧对供电臂侧特定次谐波进行滤除,同时补偿无功功率,显著降低有源系统容量。首先,基于系统拓扑结构详细分析了电气化铁路电能质量混合调节系统(ACBT-HPQCS)的工作原理。然后,对某牵引变电所实测负荷数据进行分析,给出了滤波支路设计方法,并采用阻尼注入式无源控制方法对变流器进行控制。最后,分别对所提系统进行仿真及实验分析。结果表明,ACBT-HPQCS在显著降低有源系统容量的同时具有良好的电能质量治理效果。In view of the large compensation capacity and huge cost of the railway power conditioner,a hybrid compensation system composed of railway static power conditioner(RPC)and inductively filtered rectifier transformer(IFRT)is proposed.The secondary winding of the IFRT can filter the specific order harmonic current of the supply arm at low voltage side while compensating reactive power.Therefore,the capacity of the active system is greatly reduced.Firstly,based on the system topology,the working principle of the asymmetrical connection balance transformer-based hybrid power quality control system(ACBT-HPQCS)is analyzed in detail.Then,the design scheme of the filter branch is given after analyzing the measured load data of a traction substation.Moreover,the damp injection passive control method is used to control the converter.Finally,the simulation and experimental results show that ACBT-HPQCS provides good power quality management while significantly reducing the capacity of the active system.

关 键 词：电气化铁路 感应滤波 电能质量 无源控制 

分 类 号：TM46[电气工程—电器]