混合储能源电动汽车开关磁阻电机驱动与充放电集成功率系统研究

本项目以基于电池和超级电容混合储能源的电动汽车开关磁阻电机(SRM)驱动系统为研究对象，充分结合SRM本体、功率变换器及其控制的特殊性，探索一种具备混合储能源接入、SRM驱动控制、多模式集成车载充放电等核心功能集成的电动汽车SRM驱动和充放电集成功率拓扑，从而实现功率拓扑集成与电动汽车核心功能集成的统一。主要研究内容有：针对混合储能源的接入和SRM驱动控制，研究一种基于三开关管级联型双输入双向DC-DC变换器的SRM集成驱动功率变换器拓扑，以及SRM集成驱动的优化控制和能量管理方法。针对车载充电器，将通过系统分析SRM相绕组电感特性和不对称半桥功率变换器的特点，来探索可充分复用SRM相绕组和功率变换器开关器件的方法，从而构造功率流双向可控的新型单相、三相交流和直流集成车载充电器拓扑，并研究其综合控制策略。预期通过本项目的研究，为未来电动汽车智能化、轻型化和低成本化储备一定的基础理论和技术。

This project takes the switched reluctance motor (SRM) drive system with battery and super capacitor hybrid energy storage as the research object. By fully considering the unique characteristics of the SRM itself, the power converter structure and its control, to explore an integrated electric vehicle SRM drive and charge/discharge power converter topology that can integrate the core functions of an electric vehicle, such as to interface the hybrid energy storage, the SRM drive control and the multi-mode integrated onboard charge functions. And thus can achieve the integrating of both the power topology and the core functions of an electric vehicle. The main researches are as follows: to interface the hybrid energy storage and realize the SR drive control, a three-switch cascaded dual inputs bidirectional DC-DC converter based SRM integrated drive power converter will be studied. Based the integrated drive system, the optimal control and energy management techniques will also be studied. For the onboard charger, this project will analyze the SRM winding inductance characteristics and the features of the asymmetrical half bridge power converter systematically. Based on these characteristics, a method that can fully using the SRM windings and the power switches components will be explored for constructing the novel single-phase AC, three-phase AC and DC integrated onboard chargers with bidirectional power flow capability. Besides, the synthetic control strategies of the integrated onboard chargers will be studied. Based on this research, some basic theories and techniques are expected to be reserved for the intelligentization, lighten-improving and low-costing development of the future electric vehicle.