Why AC motor speed control system will replace DC motor speed regulation system?
PWM control is the control core of AC speed regulation system, and the final realization of any control algorithm is almost finished by various PWM control methods.
Among them, space vector PWM technology has been used more and more in AC speed regulation system because of its high voltage utilization, simple control algorithm and low current harmonic
At present has been put forward and the practical application of the PWM control scheme is more than a dozen kinds, about PWM control technology in the power of many famous international conferences, such as PESC, IECON, EPE annual meeting has formed a special. Especially the microprocessor used in PWM technology and the digital pattern, is constantly changing, from the initial pursuit of sinusoidal voltage waveform, sine to current waveforms, then to sinusoidal flux; from the optimal efficiency, minimum torque ripple, to eliminate noise, PWM control technology development has experienced a continuous innovation and the continuous improvement process. So far, new proposals have been put forward, which further proves that the research of this technology is in the ascendant.
