摘要
地铁站间距离较短,机车频繁的启动和制动,造成直流牵引网波动过大和产生大量再生制动能量。针对这一问题,采用了一种双向DC-DC控制的超级电容储能系统和逆变回馈系统进行协调控制,从而稳定直流牵引网电压和有效利用再生制动能量。制定了双向DC-DC变换器的电压外环、电流内环的双PI控制策略,逆变并网系统采用空间矢量控制策略。搭建了车载超级电容储能系统和逆变回馈系统的仿真模型,仿真结果验证了超级电容储能系统吸收再生制动能量,有效地抑制牵引网电压,逆变并网系统能够消耗一部分升高的牵引网电压,减少超级电容体积。
The distance between the subway station is relatively close, and the frequent starting and braking of the locomotive cause the excessive fluctuation of DC traction network and a large amount of regenerative braking energy. In order to solve this problem, a bidirectional DC-DC controlled super capacitor energy storage system and an inverter feedback system are used to coordinate the control of the DC traction network voltage and the utilization of regenerative braking energy. The double PI control strategy of the voltage outer loop and current inner loop of the bidirectional DC-DC converter is established, and the space vector control strategy is adopted in the inverter grid connected system. Build a vehicle simulation model of super capacitor energy storage system and feedback system, the simulation results verify the super capacitor energy storage system absorbs the regenerative braking energy, effectively restrain the traction network voltage inverter system can consume part of the increased traction network voltage, reduce the volume of super capacitor.
作者
曹成琦
王欣
秦斌
张凯
梁枫
CAO Cheng-qi;WANG Xin;QIN Bin;ZHANG Kai;LIANG Feng(School of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou 412007, China)
出处
《新型工业化》
2016年第10期10-14,共5页
The Journal of New Industrialization
基金
国家自然科学基金(61074067
21106036)
湖南省科技计划重点项目(2014FJ2018)
作者简介
曹成琦(1990-),男,湖南工业大学硕士研究生,主要研究方向:电力系统及其自动化;王欣(1971-),女,博士,教授,主要研究方向:复杂工业过程控制、能量管理、机器学习;秦斌(1963-),男,博士,教授,主要研究方向:复杂工业化过程建模与优化控制;张凯(1990-),男 ,硕士研究生,主要研究方向:现代电力电子技术;梁枫(1991-),男,硕士研究生,主要研究方向:复杂电气系统信息集成和协调控制