模型预测电流控制的航空蓄电池充放电控制器研究

Research on Charge and Discharge Controller of Aviation Battery Based on Model Predictive Current Control

为解决充电电路启动时电流增大、放电时系统抗扰动能力差等问题,提出了基于模型预测电流控制的航空蓄电池充放电控制方法,通过预测电流实现了充放电电流的无差拍跟踪,提高系统的抗扰性能与动态响应速度。本文设计的直升机蓄电池充放电控制器,不仅能够满足直升机蓄电池大电流快速充放电、消除镍镉电池的记忆效应的特殊要求,蓄电池还可以对直升机负载恒压放电。仿真结果证明了该方法的有效性,提高系统的鲁棒性。

In order to solve the problems of current increase during charging circuit start-up and poor anti disturbance ability of the system during discharging, a model predictive current control method for aviation battery charging and discharging is proposed. The deadbeat tracking of charging and discharging current is realized by predictive current, which the anti disturbance performance and dynamic response speed of the system are improved. The charge and discharge controller of helicopter battery designed in this paper can not only meet the special requirements of high current fast charge and discharge of helicopter battery and eliminate the memory effect of nickel cadmium battery, but also can discharge helicopter load at constant voltage. Simulation results show the effectiveness of the method and improve the robustness of the system.