复合级联多电平电池储能功率转换系统研究

项目名称： 复合级联多电平电池储能功率转换系统研究

项目编号： No.51307110

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 电工技术

项目作者： 李睿

作者单位： 上海交通大学

项目金额： 26万元

中文摘要： 本项目开展基于可再生能源功率波动平滑的电池储能功率转换系统(Power Conversion System-PCS）研究，申请者提出一种复合级联多电平电池储能PCS，它在传统的 级联H 桥PCS 的H 桥直流侧和储能电池之间插入隔离型双向直流变换器，具有模块化设计和高冗余性。复合级联储能PCS 工作在功率大波动条件下，通过合理控制双向直流变换器，减缓储能电池充放电电流变化率，促进储能电池的安全高效运行。申请者计划研究功率大波动下储能电池与PCS 匹配理论与控制设计方法、PCS 主电路拓扑设计与损耗优化方法、PCS 中多模块互联稳定性分析和网络化控制方法、PCS功率控制策略和电池荷电状态均衡控制方法、PCS 冗余保护方法。研制200kW/690V接入、9模块复合级联H桥电池储能PCS，验证提出的理论和方法。

中文关键词： 储能；功率转换系统；复合级联多电平；；

英文摘要： The project carry out research on the battery energy storage power conversion system (PCS) based renewable energy power fluctuation smoothing. A compound cascade H-bridge (CCH) battery energy storage power conversion system (CCH-PCS) is proposed by the applicant. In CCH-PCS, bi-directional isolated DC/DC converter is inserted between the traditional cascade multilevel PCS H-bridge dc side and energy storage battery. The CCH-PCS is designed with modular and high redundancy. The energy storage PCS which is used for smoothing fluctuation power is always working in the conditions of power fluctuations. When bi-directional isolated DC/DC converter is controlled appropriate, the rate of change of energy storage battery charge and discharge current can be smoothed and safe and efficient operation of the storage battery can be promoted.The applicant plans to research energy storage battery and PCS matching theory and control design method based renewable energy power fluctuation, PCS topology and loss optimization design method, PCS multi-module interconnect stability analysis and networked control method, PCS grid side power control and battery SOC ballance management method, PCS redundancy protection method. Developed 200kW/690V AC 9 modules CCH-PCS experimental platform to verify the theory and method proposed in th

英文关键词： Energy Storage；Power Conversion System；Compound Cascade Multi-level；；