双向充电桩V2G控制策略研究

Research on V2G Control Strategy of Bidirectional Charging Pile

针对车网互动(V2G)技术中的电动汽车反馈能量给电网的控制策略问题,提出一种新型的在a,b,c坐标系下基于模糊控制的改进比例谐振(PR)控制技术。该方法是在a,b,c坐标系下通过基于模糊控制的改进PR控制器对交流侧的三相电流直接控制,改进PR控制器输出的电压作为三维空间矢量脉宽调制(3D-SVPWM)算法的输入信号,进而对开关器件进行控制。相比于传统方法,该方法进一步提高了系统的静、动态性能。

Aiming at the control strategy of electric vehicle feedback energy to power grid in vehicle to grid (V2G) technology , a new improved proportional resonance(PR) control technique is proposed based on fuzzy control in a,b , c coordinate system.The method is to directly control the three-phase current on the alternating current side through an improved PR controller based on fuzzy control in the a, b , c coordinate system, and the voltage output from the improved PR controller is used as an input signal of the three dimension space vector pulse width modulation (3D-SVPWM) algorithm, and then the switching device is controlled.Compared with the traditional method , this method further improves the static and dynamic performance of the system.