摘要
基于储能的多端口电源系统主要包括燃料电池、超级电容器储能和两组DC/DC变换器单元,根据系统需求设计了各组成部分的结构功能,分析了系统能量管理方案和储能单元的配置策略。燃料电池单元配备单向DC/DC变换器,采用电压电流双闭环控制为负载和超级电容储能单元提供能量;负载动态变化时,通过储能单元及其双向DC/DC变换器,采用滑模控制和分段PI控制相结合的策略,实现能量的快速传递控制,提高系统的输出稳定性。建立系统仿真模型进行分析,验证了多端口电源系统控制策略的有效性。
The multiport power supply system based on energy storage mainly included a fuel cell,super-capacitor and two DC/DC converter units. Structures and functions of all components were designed according to system requirements,and the system energy management scheme and the configuration strategy of the energy storage unit were analyzed. The fuel cell unit was equipped with a one-way DC/DC converter. Dual voltage/current closed-loop control was adopted to provide energy to the load and super-capacitor energy storage unit. When the load changed dynamically,through the energy storage unit and bi-directional DC/DC converter,rapid energy transfer control was realized by using sliding mode control and sub-section PI control in combination to improve the output stability of the system. A system simulation model was established for analysis,and the effectiveness of the control strategy of the multiport power supply system was verified.
作者
冯兴田
陶媛媛
孙添添
Feng Xingtian;Tao Yuanyuan;Sun Tiantian(East China College of Information and Control Engineering,China University of Petroleum,Qingdao Shandong 266580,China;State Grid Shandong Electric Power Co.,Dongying Power Supply Co.,Dongying Shandong 257000,China)
出处
《电气自动化》
2018年第4期66-69,共4页
Electrical Automation
基金
国家自然科学基金项目(51477184)
