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Sinusoidal pulse width modulation is a popular modulation for most alternating current induction motor. It only requires fewer calculations and is easy to implement. However, the shortcomings of using it are low DC voltage utilization, and poor inverter transmission capability. In recent years, there is an increasing trend and more research concentration of using space vector pulse width modulation in adjustable speed drives and renewable energy systems because it has better DC bus utilization, better performance, lower loss, lower ripples, and wide application range. This paper introduces space vector pulse width modulation and applies to speed control of alternating current induction motor. The three phase alternating current induction motor is reviewed based upon space vector representation. The development of space vector pulse width modulation and implementation to speed control of induction motor is done using Matlab/Simulink. The simulation is conducted by analyzing the response of stator current, stator voltage, speed, voltage, frequency, and the electromagnetic torque. Simulation results shows that space vector pulse width modulation which generates the voltage patterns at real time is able to control the speed of a three phase alternating current induction motor. It indicates the validity of space vector pulse width modulation in controlling the speed of a three phase alternating current induction motor (ACIM). In conclusion, the use and realization of space vector pulse width modulation has been validated by the Matlab/Simulink simulation experiment for controlling the speed of a three phase alternating current induction motor.
International Journal of Engineering Research and
V/F Speed Control of 3 phase Induction Motor using Space Vector Modulation2015 •
International Journal of Engineering Research and Technology (IJERT)
IJERT-V/F Speed Control of 3 phase Induction Motor using Space Vector Modulation2016 •
https://www.ijert.org/vf-speed-control-of-3-phase-induction-motor-using-space-vector-modulation https://www.ijert.org/research/vf-speed-control-of-3-phase-induction-motor-using-space-vector-modulation-IJERTV5IS010652.pdf Speed control techniques are generally essential in adjustable speed drive system which requires variable voltage and frequency supply which is invariably obtained from a three-phase Voltage source inverter. A number of pulse width modulations scheme is used to obtain variable voltage and frequency supply from an inverter, but Space Vector Pulse Width Modulation has advantages such as easier digital realization, better dc bus utilization over the other methods of Pulse width modulations. In this paper v/f speed control of three phase induction motor using space vector modulation is demonstrated by using MATLAB/SIMULINK model. Keywords-Voltage source inverter (VSI), Pulse width modulations (PWM), Space Vector Pulse Width Modulation (SVPWM), Three phase induction motor (3 phase I.M)
In this paper, v/f control of Induction motor is simulated for closed loop systems. The induction motor is fed from three phase bridge inverter which is operated with space vector modulation (SVM) Technique. Among the various modulation strategies, Space Vector Modulation Technique is the efficient one. Because it has better spectral performance and output voltage is closer to sinusoidal. The performance of SVM technique and Sine triangle pulse width modulation (SPWM) technique are compared for harmonics, THD, DC bus utilization, output voltage and observed that the Space Vector Modulation has better performance compared to SPWM. These techniques are applied for speed control of Induction motor by v/f method for closed loop systems. It is observed that the induction motor performance is improved with SVM and verified by using MATLAB/SIMULINK, PROTEUS Software and Hardware Prototype Model.
2018 •
This paper presents Space Vector Modulation of Inverter fed with three phase Induction Motor using MatLab Simulation. Induction motors are the most widely used electrical motors due to their reliability, low cost and robustness. However, induction motors do not inherently have the capability of variable speed operation. Due to this reason, earlier dc motors were applied in most of the electrical drives. But the recent developments in speed control methods of the induction motor have led to their large scale use in almost all electrical drives. Voltage control is required to meet the variation in the input voltage and to regulate the output of the inverter and it is an algorithm for the control of Pulse Width Modulation technique. SVM gives better harmonic response and higher efficiency compared to pulse width modulation techniques. KeywordsSVM Technique, PI Control, Speed control method, VSI bridge inverter, MatLab.
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Space vector pulse width modulation based speed control of Induction motor using Fuzzy PI controllerInternational Journal of Engineering Research and Technology (IJERT)
IJERT-Speed Control of 3-Phase Squirrel Cage Induction Motor by 3-Phase AC Voltage Controller Using SPWM Technique2014 •
https://www.ijert.org/speed-control-of-3-phase-squirrel-cage-induction-motor-by-3-phase-ac-voltage-controller-using-spwm-technique https://www.ijert.org/research/speed-control-of-3-phase-squirrel-cage-induction-motor-by-3-phase-ac-voltage-controller-using-spwm-technique-IJERTV3IS10584.pdf ] Reddi Ganesh [2] P. S. V. Kishore [3] [1] [2] Vignan's institute of information technology/electrical and electronics department, Visakhapatnam, India [3] Addis Ababa university/ electrical and electronics department, Addis Ababa, Ethiopia. Abstract The objective of this paper is to investigate the effect of SPWM technique on 3-phase ac voltage controller for speed control of induction motor drive. SPWM for closed loop control of induction motor drive fed by ac voltage controller is designed and considered for evaluation. AC voltage controller makes use of line commutation and as such no complex commutation circuitry is required in this controller. The main application of this model is winders, fan drives, domestic pumps, industrial heating and lighting control. Simulation is carried out by using MATLAB 2009b and programming for firing of SCR is done by using KEIL.
International Journal of Recent Technology and Engineering (IJRTE)
MATLAB /Simulink Modelings and Experimental Design of Variable Frequency Drive for Speed Control of Three-Phase Induction Motor2019 •
This paper presents the PWM (Pulse Width Modulation) based speed control of three-phase asynchronous (Induction) motor. Induction motor is the leading machine used in many industrial controls, automation processes and in the field of HVAC applications. However, induction motor has fixed rated speed when directly connected to ac supply. It is necessary to design a drive system to obtain variable speed at its output to fulfill the application requirement. For this reason, we have designed a “VFD (Variable Frequency Drive)”, which gives desired speed- according to load changes unlike the DC motors, which do not require any speed controlling drive. Currently with the technological elevation in drive systems, the speed control of induction motor is more economical, convenient, reliable, and accurate. It provides continuous process control over a wide range of speed. VFD not only controls the speed of induction motor but also make its starting smooth by reducing starting inrush current an...
2020 •
Induction machines are widely used in various applications including industrial applications and locomotive applications. The electric systems used in industrial applications are required to have higher performance and reliability requirement so three phase induction motors are preferable because they are simple to design, easy to maintain and are less costly. However, induction motors do not have capability of variable speed operation, it is in that reason, the speed control of induction motor has become essential. This report deals with the investigation, experimental tests and compares the main concept of speed control of induction motor using V/F control method and vector control method with the help of AC2 - Space Vector PWM VSI Induction 3HP Motor Drive Simulink model. Variable voltage and frequency (V/F control) method is the most suitable common method of speed control for the applications without position control requirements for high accuracy of speed control but V/F control is inferior to vector control for complex dynamic behavior of the induction motor so the vector control technique works with vector quantities, controlling the desired values by using space phasors which is a better solution so that the control on flux and torque become independent from each other and the induction motor is transformed from a non-linear to linear control plant. In this report many experiments were investigated though the build in Simulink model did not allow any changes of some parameters, so the two methods of speed control of induction machine were not clearly investigated but it compares the main concepts of the two methods of controlling speed of induction motor.
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