GA based Optimized SHEPWM Technique with Odd and Even Values
نویسندگان
چکیده
Selective Harmonic Elimination Pulse Width Modulation (SHEPWM) technique is one of the control techniques for inverters. It is mainly used for reducing the harmonic content in single phase and three phase inverters and to improve the power quality. The selection of switching angles for eliminating particular harmonic is difficult. The proposed method uses one of the soft computing techniques Genetic Algorithm (GA) to optimize the switching angle given to the single phase and three phase inverters. The bipolar waveform includes both odd and even number of switching angles to eliminate particular harmonics (5th, 7th, 11th and 13th) from inverter output. Elimination of selected harmonics is verified using MATLAB simulation for both single and three phase inverters. Optimized SHEPWM technique for three phase inverter is compared with standard PWM method using MATLAB simulation and results are presented.
منابع مشابه
Optimized she PWM Technique with Odd and Even Values Using GA for Three Phase Voltage Source Inverters
Selective Harmonic Elimination Pulse Width Modulation (SHEPWM) technique is one of the control techniques for inverters. It is mainly used for reducing the harmonic content in single phase and three phase inverters and to improve the power quality. The selection of switching angles for eliminating particular harmonic is difficult. The proposed method uses one of the soft computing techniques Ge...
متن کاملOdd and Even Switching Pattern in PV Generation System Coupled SHEPWM Inverter to Reduce Harmonics in Grid
In this paper grid connected photovoltaic generation system to mitigate the lower order harmonics by using SHE PWM inverter is discussed. In Renewable sources, solar photovoltaic system is more flexible and pollution free. Then SHE PWM inverter is used to maintain the output voltage with reduced selective harmonics ( 5, 7, 11, 13 ). The system is proposed to reduce selective harmonics in the ou...
متن کاملComparison of GA and PSO Algorithms in Cascaded Multilevel Inverter Using Selective Harmonic Elimination PWM Technique
The Selective Harmonic Elimination (SHE) technique is the fundamental switching frequency scheme which is used to eliminate specific order harmonics. In this paper, the elimination of low order harmonics in cascaded multilevel inverter with equal DC sources is proposed. The modulation strategy used here is SHEPWM in which non linear equations that characterize the low order harmonics are obtain...
متن کاملLower Order Harmonics Minimisation in CHB Inverter Using GA and Decomposition by WT
Nowadays Multilevel inverters are widely using in various applications. Modulation strategy at fundamental switching frequency like, SHEPWM is prominent technique to eliminate lower order of harmonics with less switching losses and better harmonic profile. The equations which are formed by SHE are highly nonlinear transcendental in nature, there may exist single, multiple or even no solutions f...
متن کاملBearing Fault Detection Based on Maximum Likelihood Estimation and Optimized ANN Using the Bees Algorithm
Rotating machinery is the most common machinery in industry. The root of the faults in rotating machinery is often faulty rolling element bearings. This paper presents a technique using optimized artificial neural network by the Bees Algorithm for automated diagnosis of localized faults in rolling element bearings. The inputs of this technique are a number of features (maximum likelihood estima...
متن کامل