复合储能型保安电源系统控制策略与仿真  

Control Strategy and Simulation of Power Security Supply System Based on Hybrid Energy Storage

作　　者：向东[1] 毛承雄[1] 王丹[1] 王元超[1] 杨明[1] 杨赟[1] XIANG Dong;MAO Chengxiong;WANG Dan;WANG Yuanchao;YANG Ming;YANG Yun(State Key Laboratory of Advanced Electromagnetic Engineering and Technology,Huazhong University ofScience and Technology,Wuhan 430074,China)

机构地区：[1]华中科技大学强电磁工程与新技术国家重点实验室

出　　处：《电力系统及其自动化学报》2019年第4期1-9,31,共10页Proceedings of the CSU-EPSA

基　　金：国家重点基础研究发展计划(973计划)资助项目(2015CB251301)

摘　　要：为了实现重要负荷的安全可靠供电,并减少冲击性负荷对电网的影响,提出一种基于超级电容和蓄电池的保安电源系统。首先,给出保安电源系统的拓扑结构,并建立保安电源系统的数学模型;然后,重点研究了保安电源系统的系统协调控制策略。通过检测电网状态、负荷容量和复合储能的荷电状态,综合确定各个变换器的工作模式,并根据不同工作模式的控制目标,提出了直流变换器和电压源型换流器的控制策略。通过在Mat.lab中对保安电源系统几种典型工况仿真,验证了系统功能和控制策略。To provide reliable power supply for important load and reduce the influence of impact load on grid,a power security supply system based on super capacitor and battery is proposed. Firstly,the topological structure of this system is presented,then its mathematical model is built. Secondly,the coordination control strategy for the system is studied in detail. Through detecting the status of grid,the load capacity,and the state of charge(SOC)of hybrid energy storage (HES),the operating modes of converters can be determined comprehensively. Moreover,the control strategies for direct current converters and voltage source converter(VSC)are put forward according to the control goals of different operating modes. Finally,several typical operating conditions of the novel system are simulated in Matlab and results verify its functions and control strategies.

关 键 词：保安电源系统 复合储能 蓄电池 超级电容 重要负荷 控制策略 

分 类 号：TM761[电气工程—电力系统及自动化]