摘要
在分析了电动汽车充电机控制系统各环节模型的基础上,建立了控制系统电压和电流两种充电方式下的数学模型,进而提出了分别采用基于电压和基于电流的滑模变结构控制算法(SMC)进行充电控制,以增强充电过程的鲁棒性。在此基础上,设计了以可编程门阵列(FPGA)芯片为核心控制器的充电机控制系统,给出了系统的总体结构和运行过程;控制系统中分别采用基于PID的常规三阶段式充电和基于SMC的智能充电两种充电模式,对应不同的动力电池类型,增加通用性。对SMC控制方法和不同充电模式的性能进行了仿真分析,结果表明SMC方法在充电机系统控制上具有优良的控制性能和鲁棒性能。
Based on the analysis of the various links of the control system for the electric vehicle charger, the mathematical models of the voltage and current of the control system were established. Further, the voltage and current based sliding mode control （SMC） algorithms were presented to control the charging process, respectively, in order to enhance the robustness of the charging process. On this basis, the structure and the operation process of a new charging control system was designed with field programmable gate array（FPGA） chip as the core controller. The PID based conventional three stage charging mode and SMC based intelligence charging mode were employed to correspond different types of power battery for increasing versatility. The performance of the SMC and the different charging modes were simulated and analyzed. The simulation results show that the SMC method has excellent control and robust performance in the control of the charger system.
出处
《电机与控制学报》
EI
CSCD
北大核心
2018年第2期64-70,共7页
Electric Machines and Control
基金
国家自然科学优秀青年基金(51422703)
