Speed Control Strategy for Three Phase Induction Machine Fed Inverter Base on Carrier Base Pulse Width Modulation (CBPWM)

Abstract

Abstract— An induction motors (IM) in many industries is used because it has several advantages, such as a very simple and strong construction, the price is relatively cheap, has good efficiency, power factor is quite good, and maintenance is easier. Besides the advantages of induction motors also have disadvantages, one disadvantage of induction motors is not being able to maintain a constant speed when there is a change in load. If the load changes, the speed of the induction motor will decrease. One method of regulating the speed of an induction motor presented in this study is the regulation of an induction motor using a carrier based PWM (CBPWM) inverter with the field oriented control (FOC) technique. The estimation of rotor rotation, torque and flux is done by carrier- based PWM technique which is given input voltage and stator current. To achieve the desired flux and torque, estimation is used as feedback in the control system. In this study, it will be simulated the induction motor speed regulation with a carrier base-based inverter using Matlab. The results obtained through simulation show the length of time to reach the reference speed for speeds of 1500 rpm and 1450 rpm is around 0.45 seconds. And THD average 2,675%.

Analysis of Induction Motor Based on Field Oriented Control with Modulation Techniques Carrier Based Pulse Width Modulation (CBPWM)

“…It is called Carrier-based PWM because the dominant carrier wave becomes the modulating wave because the fundamental wave is added up with all the resulting harmonic waves. [8,9]. The carrier wave usually has a frequency at least 20 times faster than the frequency sine wave, so the carrier wave can shift the low harmonic wave quite far from the basic component of the inverter output voltage.…”

“…This motor is very compact in shape, in addition to its advantages, the induction motor has the disadvantage that it is still coupling, where there is an interdependence between torque and flux and at low speeds regulating the speed is more complicated and the motor is not able to maintain a constant speed when there is a change in load. If the load changes, the speed of the induction motor will decrease [1,3]. Thus, to maintain the speed of the induction motor can be controlled properly, a method is needed, namely an induction motor using Carrier-Based PWM with Field Oriented Control techniques.…”

The Advanced Carrier Based Pulse Width Modulation Using Third Injection Harmonic Reference Signal on Neutral Point Clamped Inverter

“…Multilevel inverter is one of the electronic devices that is very well known in the electric power systems application and in industry. Since multilevel inverter has high performance and produces low harmonics [1][2][3]. There are several types of multilevel inverters such as Neutral Point Clamped, (NPC) Flying Capacitor Inverters.…”