车辆电气系统动态性能仿真

车辆电气系统是由硅整流发电机和蓄电池并联组成，是一个非线性、不对称系统，因而它的动态性能与通常的电力系统有很大不同，本文试图给出车辆电气系统的动态性能仿真法。文中分析了硅整流发电机的工作特点，采用状态变量和坐标变换表达硅整流发电机的工作模式及其转换规律；将蓄电池看作是电路元件，提出了简化的等效电路，从而列出了车辆电气系统的数学模型，举例进行了车辆电气系统动态性能仿真，并以实验进行了验证，表明所提出的仿真法是可行的。

Dynamic Simulation of the Vehicle Electric System

The vehicle electric system, which is a nonlinear and unsymmetrical system, is composed of the silicon rectifying generator and battery in parallel and its dynamic property is different from usual electric power system very much. The thesis tries to put forward a dynamic simulation method of vehicle electric system. The working characteristic of the silicon rectifying generator is analyzed; its working mode and transformation law are expressed by adopting state variables and coordinate transformation; battery is looked as a circuit element and the simplified equivalent circuit is brought forward, which get the mathematical model of the vehicle electric system as a consequence. Finally, the dynamic simulation of the vehicle electric system is made for example and the experiment is carried out to prove the simulation method is feasible.