课题11－大容量储能技术-nemaworkspaces.ppt

* 设备经试运行， * 首创电池储能系统四级电池均衡体系，实现电池系统不同层级的全面动态均衡 achieve the battery system at different levels of the overall dynamic equilibrium 一级均衡 三级均衡 四级均衡 二级均衡 * 四级 均衡 模块内 模块间 相内 相间 BMU BCMS BAMS控制，PCS执行 BAMS控制，PCS执行 8、二期-四级电池均衡体系1 Phase II - 4-level Battery Balancing System  研制了多对象共用母线的高效电池均衡装置，实现电池簇内单体电压极差系数不大于3% Two high efficiency battery equalization devices for multi-objects shared bus are developed to realize the single cell voltage coefficient of variation less than 3% * 模块间均衡装置：基于共用交流母线的DC/AC结构，可实现电池簇内任意模块间的均衡，效率达95%。 Inter - module equalization device： based on the shared AC bus DC/AC structure, equalize any two modules in the cell unit, efficiency up to 95% 8、二期-四级电池均衡体系2 Phase II - 4-level Battery Balancing System  模块内均衡装置： 基于共用直流母线双向DC/DC结构，可对模块内任意电池单体进行均衡，均衡电流≥5A，效率达90%。 In-module equalization device: based on the shared DC bus double-way DC/DC structure, equalize any single cell, equalizing current ≥5A, efficiency up to 90% 相内均衡：改变各电池组对应的H桥单元出口电压-改变H桥功率单元功率-调整相内簇间SOC偏差 In-phase Equalization: Change the output voltage of the H-bridge unit of each battery pack - change the H-bridge power unit power - adjust the inter-battery cluster SOC deviation 首创基于能量转换调节的无损均衡技术，有效提升电池阵列SOC的一致性 Research on energy-loss-free equalization based on energy conversion regulation to improve the SOC consistency of battery system A相H桥单元1 A相H桥单元2 A相H桥单元20 …… 8、二期-四级电池均衡体系3 Phase II - 4 Levels Battery Balancing System  * 首创基于能量转换调节的无损均衡技术，有效提升电池阵列SOC的一致性 Research on energy-loss-free equalization based on energy conversion regulation to improve the SOC consistency of battery system 相间均衡：零序电压注入-中性点偏移-改变三相功率分配-调整各相SOC偏差 Inter-phase Equalization: Zero Sequence Voltage Injection - Neutral Offset - Change Three-Phase Power Distribution - Adjust the three-phase SOC deviation o o A相 B相 C相 8、二期-四级电池均衡体系4 Phase II - 4 Levels Battery Balancing System  * 计算机监控系统采用分层、分布、开放式网络结构，IEC61850双网络配置。 Monitoring and control system