说明：  针对燃料电池供电的无刷直流伺服电机, 研究了一种用来释放多余回馈能量的电压泵升电路, 分析了无刷直流电动机的数学模型与机械特性, 以及伺服电机实现四象限运行的控制策略.其中, 电动采用三相六状态控制方法, 制动采用控制性能较好的低速能量回馈制动控制方法, 分析 了电动和制动下PWM 调制的主电路工作模态, 并经仿真和实验结果验证了其正确性和可行性.
(:For fuel cell is used as the DC input pow er of inve rter , a vo ltag e pumping ci rcuit fo r releasing nimie ty regenerative energy is needed , and a novel pumping ci rcui t w as propo sed .The research on 4-quadrant o peratio n of brushless DC servo mo to r w as g iven .The mathematical model and mechanical characteri stics are fi rst analy zed .Then , the three-phase-six-state cont rol strateg y is used in elect ro operation , and regenerative braking w ith high contro l performance is used in braking)