基于剩余容量匹配的储能装置负荷分配控制技术  

Load Distribution Control Technology for Energy Storage Device Based on Residual Capacity Matching

作　　者：张强[1] 王禹霖 张茜 ZHANG Qiang;WANG Yulin;ZHANG Qian(College of Intelligent System s Science and Engineering,Harbin Engineering University,Harbin 150001,China;Nanjing Chenguang Group Co.,Ltd.,Nanjing 210000,China)

机构地区：[1]哈尔滨工程大学智能科学与工程学院,黑龙江省哈尔滨市150001 [2]南京晨光集团有限责任公司,江苏省南京市210000

出　　处：《电力系统自动化》2020年第24期126-133,共8页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(51761135013)。

摘　　要：多个储能单元并联运行时,传统的均流等负荷分配控制技术难以实现对各个储能单元剩余容量的充分利用。如何依据剩余容量的差异,实现储能单元间的负荷分配成为储能装置控制技术的研究热点之一。文中利用输出电流和剩余容量定义了储能单元的负荷系数,将其与具备双信号母线结构的负荷分配控制电路相结合,设计出基于剩余容量匹配的负荷分配控制策略,提高了储能装置剩余容量的利用率。为了增强储能单元运行的灵活性,以提出的负荷分配控制策略为基础,形成了储能单元并联运行的柔性热投切控制方法。仿真和实验结果验证了所设计的控制策略和控制方法的可行性和有效性。When multiple energy storage units operate in parallel,the traditional load distribution control technology,such as the current-sharing method,is difficult to fully utilize the residual capacity of each energy storage unit.Therefore,how to realize the load distribution among energy storage units according to the difference of residual capacity has become one of the research hotspots of energy storage device control technology.In this paper,the load coefficient of the energy storage unit is defined by using its output current and residual capacity.By combining the load coefficient with the load distribution control circuit which has the structure of double signal buses,a load distribution control strategy based on residual capacity matching is designed to improve the utilization rate of the residual capacity of the energy storage device.In order to enhance the operation flexibility of energy storage units,a flexible thermal switching control method for parallel operation of energy storage units is formed based on the proposed load distribution control strategy.Simulation and experimental results verify the feasibility and effectiveness of the proposed control strategy and method.

关 键 词：储能 并联运行 剩余容量 负荷分配 能量利用率 柔性热投切 

分 类 号：TM73[电气工程—电力系统及自动化]