【摘要】 目前在逆变电路中被采用的有许多控制策略,但它们求解出来的开关规律都不是最优解。文中提出采用遗传算法来求解逆变电路中开关器件的最优控制规律。在这种新的逆变器开关控制策略中建立多目标优化函数,既使得电压型逆变电路输出电流波形总谐波畸变率尽量小,同时又能减小逆变过程的电力电子开关损耗。由仿真实验可知,选择不同的遗传算法参数可以达到适应度函数最优,仿真结果也证明了该控制策略的优越性、有效性。更多还原

【Abstract】 There are many control laws used in the inverters, but those control laws are not optimal. So in this paper a new control law of inverters based on a genetic algorithm is presented. In this control law multi-object function is created, which enables a voltage-source type inverter to produce a near standard sine wave with a minimum switching loss. Through computer simulation different parameters of genetic algorithm have been chosen in order to reach fitness function optimization, and conducted to evaluate the effectiveness of the new control law.更多还原