SVPWM & SPWM CONTROLLER BASED PERFORMANCE EVALUATION OF THREE PHASE INDUCTION MOTOR (original) (raw)
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The Space Vector Pulse Width Modulation (SVPWM) Technique has become one of the important PWM techniques for Three Phase Voltage Source Inverter (VSI) for the control of AC Induction Motors and Permanent magnet Synchronous Motors. The study of SVPWM technique reveals that space vector modulation technique utilizes DC bus voltage more efficiently and generates less harmonic distortion when compared to sinusoidal PWM technique. In this paper deals with the study of two-level SVPWM technique in all possible combinations of switching sequences and the performance of three phase induction motor in each switching sequences. Here there are four possible switching sequences are compiled and analyzed the performance of three phase inverter fed induction motor in each switching sequences present in SVPWM. The analysis is made by using MATLAB/SIMULINK software and its performance was analyzed by its various parametric measures. The performance parameters to be considered in all four possible switching sequence presents in SVPWM are DC bus utilization, Total Harmonics Distortion (THD), Switching Stress, Efficiency of the Inverter, Variations in the load voltage and current. The simulation studies reveal that the best switching sequence presents in SVPWM provides better performance to the three phase inverter fed induction motor by various parameter measurements. The simulation results are provided to validate the proposed model approaches.
Performance Analysis of Induction Motor Drive using SVPWM
In this project speed of induction motor is controlled which is fed from three phase bridge inverter. In this paper the speed of an induction motor can be varied by varying input Voltage or frequency or both. Variable voltage and variable frequency for Adjustable Speed Drives (ASD) is invariably obtained from a three-phase Voltage Source Inverter (VSI). Voltage and frequency of inverter can be easily controlled by using PWM techniques, which is a very important aspect in the application of ASDs. A number of PWM techniques are there to obtain variable voltage and variable frequency supply such as PWM, SPWM, SVPWM to name a few, among the various modulation strategies SVPWM is one of the most efficient techniques as it has better performance and output voltage is similar to sinusoidal. In SVPWM the modulation index in linear region will also be high when compared to other region.
International Journal of Engineering Research and Technology (IJERT), 2014
https://www.ijert.org/certain-investication-in-performance-of-three-phase-voltage-sourse-inverter-fed-induction-motor-drive-by-various-pulse-width-modulation-techniques https://www.ijert.org/research/certain-investication-in-performance-of-three-phase-voltage-sourse-inverter-fed-induction-motor-drive-by-various-pulse-width-modulation-techniques-IJERTV3IS061018.pdf The Three Phase Voltage Source Inverter supplies invariably required variable voltage and frequency of the adjustable speed drive system. A number of pulse width modulation (PWM) schemes are used to obtain variable voltage and frequency supply from an inverter. The most widely used PWM scheme for a Three Phase Voltage Source Inverter is carrier based sinusoidal PWM and Space Vector Pulse Width Modulation (SVPWM). There is an increasing trend of using SVPWM, because of their easier digital realization and better DC bus utilization. The study of SVPWM technique reveals that this technique utilizes DC bus voltage more efficiently and generates less harmonic distortion when compared with sinusoidal PWM techniques. The SVPWM technique has become one of the important PWM technique for Three Phase Voltage Source Inverter for the control of AC induction motor, Brushless DC motor, Switched Reluctance motor and Permanent Magnet Synchronous motor. In this paper having collection of different schemes in SVPWM. Specifically various schemes are Center aligned two level SVPWM, Level shifted multi-carrier concepts based SVPWM, and carrier waveform based modulated reference waveform generation and comparison in SVPWM. This paper having simulation results of all the three schemes of SVPWM by using MATLAB/SIMULINK software. The performance of Three Phase Voltage Source Inverter fed induction motor drive based on various SVPWM schemes are analyzed by various reference parameters like DC bus utilization, Total harmonic distortion (THD), switching stress and efficiency. As a result of these analysis this paper recommends which scheme is more suitable for variable voltage and various frequency drives. The simulation results are provided to validate the proposed model approaches.
Analytical comparison of SPWM & SVPWM techniques for three-phase induction motor V/F speed control
AIP, 2023
The induction machine is the workhorse of the industry. It has a rugged build and is appropriate for a wide range of high-power applications. It has been an essential element of all industries, different techniques are implemented to control the speed. And hence, we discuss the speed control of a three-phase induction motor using the V/F approach. The machine is operated by a three-phase inverter and the motor is controlled by a three-phase inverter. Pulse width modulation is preferred because of the low harmonic content obtained in the output voltage and current SPWM and SVPWM are the techniques used to control the inverter voltage this technique is developed in MATLAB/Simulink for open loop and close loop by selecting the Ode23s solver. This paper aims to a comparison analysis for Volt/Hertz-based induction motor speed control. both PWM types are checked under the same condition. This paper shows that the control technique in the SPWM application performs poorly, unlike the SVPWM technique so the SVPWM has a lower settling time and is more efficient than SPWM.
Simulation and Performance of Induction Motor Drive Using SVPWM Technique
Due to the advancement in power semiconductor devices and microprocessors, PWM inverters have been used in today's motor drives. The most commonly used PWM techniques are Sinusoidal pulse width modulation (SPWM) and Space vector pulse width modulation (SVPWM). Sinusoidal PWM technique is complex in digital implementation. Space Vector Pulse Width Modulation (SVPWM) is a digital technique, which increases the output voltage capability and increases DC bus utilization voltage. The output of the inverter can contain large number of voltage harmonics. As aim is to get low THD with sinusoidal output voltage waveform it is proposed to use LC filter. Sinusoidal output waveform is fed to an Induction Motor (IM). An AC drive system performance was simulated and evaluated for variable speed operation from no-load to rated speed under constant torque operation. The performance of motors has been analyzed from no load and full load in this paper. The focus was based on the simulation of power circuits using MATLAB/SIMULINK software.
Investigation of SPWM and SVPWM VSI for Induction Motor Drive
IOP Conference Series: Materials Science and Engineering, 2020
This paper investigates the different modulation techniques of voltage source inverter (VSI) for induction motor drive concerning the harmonic distortion. Two types of PWM strategies are analyzed under various operating conditions regarding total harmonic distortion. Both sinusoidal PWM and space vector PWM strategies have been analyzed. THD has a suitable value that reduces the torque ripple. since the high switching frequency provides high ripple. The system is simulated by using Matlab.
Performance Analysis of three phase induction motor drive for Various PWM control Methods
2015
This paper presents performance analysis of three phase induction motor drive for various control methods. Three phase inverters are mostly used in industries for adjustable and variable speed three phase induction motor drive systems. The working of three phase induction motor drive system is discussed. The simple method of generation of PWM signals in different modes of operation using single timer feature of PIC microcontroller are discussed and presented. Four different PWM control methods and there implementation using microcontroller chip to operate three phase inverter in four different modes is discussed. The desired control signals are generated using PIC microcontroller and applied to three phase inverter through driver circuit. Three phase inverter performance parameters are determined and compared for single pulse PWM modes such as simple 120 conduction mode, 180 conduction mode, and multiple pulse PWM modes such as advanced SPWM and harmonic injected PWM mode. The compl...
Simulation model for pulse width modulation-voltage source inverter of three-phase induction motor
International Journal of Power Electronics and Drive Systems (IJPEDS), 2023
Induction motor has been widely applied in many sectors, as it has the advantages of simplicity, toughness and can withstand hard environment conditions. The working of such motor in constant voltage/frequency (V/F) speed control method has been popular since the introduction of the power electronic devices, which consequently make the implementation of this method simpler and effectives. The V/F speed control is dominated choice for many applications, especially open loop control and also for closed loop control when the accuracy is not a crucial issue. This study deals with two cases of controlling open and close of the electronic switches. The first with equal intervals by placing regular pulses at the opening and closing periods, and the second using three-phase pulse width generator, through which the control of different periods is carried out according to the required control. Four models have been simulated in this study including, three-phase induction motor at constant torque (constant load) as well as at variable torque (variable load), modeling of PWM-VSI for three-phase induction motor at constant torque (constant load) as well as at variable torque (variable load). The results have shown that speed profile of the IM can be improved by controlling the invertor using PWM technique.