The rules of the fuzzy arithmetic is that for the position of running point of phase track, the speed and the direction of the point, the adjustive control is added to the former control.

• 该模糊算法的控制思想为:针对相轨迹运动点在相平面的位置,以及该点运动的速度和方向,在控制器中原有控制量中加入可以调节的切换控制量。