No-sensor speed regulating system means using the correlating electrical signal in motor winding of electromotor to calculate the position and speed of the rotor by using information distinguishable technology, which can replace mechanical sensor to achieve the electromotor control. 无机械速度传感器交流调速系统是指利用电动机绕组中有关的电信号,通过信息辨识技术得出转子的位置和速度,取代机械传感器实现电动机的控制。
And two basic methods for regulating motor speed are proposed based on this equation. That is to adjust the energizing angle and the average voltage of phase winding. 根据机械特性方程式提出SR电机两种基本调速方法,即调节相绕组的通电角和调节相绕组的平均电压。
By regulating the compensation current injecting into the compensation winding of the reactor, the reactor inductance at different harmonic frequencies can be independently and continuously adjusted. 有源电抗器由一对耦合绕组和一个补偿电流发生器组成,通过控制有源电抗器补偿绕组中的谐波磁通补偿电流,可以独立且连续地调节电抗器在不同谐波频率下的电感量。
Through regulating the PWM duty cycle, the winding current is changed and the pace length is adjusted. 通过调节PWM波形的占空比,调节绕组电流大小,从而改变位移机构的步距。