混合储能系统载波移相充放电控制策略

Carrier phase-shift charging and discharging control strategy of hybrid energy storage system

为了提高混合储能运行的安全性和灵活性,确保储能模块的均衡性和一致性,首先针对电磁发射负载复杂的运行特性,设计了一种混合储能分组级联拓扑结构,详细介绍了其工作原理和4种运行模式;然后,开展了针对混合储能分组级联拓扑的载波移相充放电控制的研究,分别结合锂电池充电模式、超级电容充电模式以及电磁发射驱动模式,研究了载波移相策略的应用方法和充放电策略;最后,针对上述3种模式分别进行了试验,验证了载波移相策略的可行性以及在锂电池模块故障状态下瞬时旁路的功能,同时证明了该策略具有提高系统灵活性、保持各锂电池储能模块均衡性和一致性的优势特点。

In order to improve the safety and flexibility of hybrid energy storage operation,and ensure the balance and consistency of energy storage modules,firstly,according to the complex operation characteristics of electromagnetic launch load,a hybrid energy storage group cascade topology was designed,and its working principle and four operation modes were introduced in detail.Secondly,the research on carrier phase-shift charge and discharge control for hybrid energy storage packet cascade topology was carried out,and the application method and charging and discharging strategy of carrier phase-shift control were studied in combination with lithium battery charging mode,super capacitor charging mode and electromagnetic launch driving mode respectively.Finally,Experiments were conducted on the three operating modes mentioned above respectively to verify the feasibility of the car-rier phase-shift control strategy and the function of instantaneous bypass in the case of lithium battery module failure.At the same time,it has the advantages of improving system flexibility and maintaining the balance and consistency of each lithium battery energy storage module.