scholarly journals GENETIC ALGORITHM BASED SOLUTION IN PWM CONVERTER SWITCHING FOR VOLTAGE SOURCE INVERTER FEEDING AN INDUCTION MOTOR DRIVE

2017 ◽  
Vol 27 (2) ◽  
pp. 45-60
Author(s):  
V. Jegathesan
Keyword(s):  
Genetic Algorithm ◽  
Lower Order ◽  
Pulse Width Modulation ◽  
Experimental Results ◽  
Voltage Source ◽  
Pwm Inverter ◽  
Harmonic Elimination ◽  
Transcendental Equations ◽  
Voltage Harmonics

This paper presents an efficient and reliable Genetic Algorithm based solution for Selective Harmonic Elimination (SHE) switching pattern. This method eliminates considerable amount of lower order line voltage harmonics in Pulse Width Modulation (PWM) inverter. Determination of pulse pattern for the elimination of some lower order harmonics of a PWM inverter necessitates solving a system of nonlinear transcendental equations. Genetic Algorithm is used to solve nonlinear transcendental equations for PWM-SHE. Many methods are available to eliminate the higher order harmonics and it can be easily removed. But the greatest challenge is to eliminate the lower order harmonics and this is successfully achieved using Genetic Algorithm without using Dual transformer. Simulations using MATLABTM and Powersim with experimental results are carried out to validate the solution. The experimental results show that the harmonics up to 13th were totally eliminated. 

scholarly journals Genetic algorithm based solution in pwm converter switching for voltage source inverter feeding an induction motor drive

2017 ◽  
Vol 26 (2) ◽  
pp. 45-60 ◽  
Author(s):  
V. Jegathesan
Keyword(s):  
Genetic Algorithm ◽  
Lower Order ◽  
Pulse Width Modulation ◽  
Experimental Results ◽  
Voltage Source ◽  
Pwm Inverter ◽  
Harmonic Elimination ◽  
Transcendental Equations ◽  
Voltage Harmonics

This paper presents an efficient and reliable Genetic Algorithm based solution for Selective Harmonic Elimination (SHE) switching pattern. This method eliminates considerable amount of lower order line voltage harmonics in Pulse Width Modulation (PWM) inverter. Determination of pulse pattern for the elimination of some lower order harmonics of a PWM inverter necessitates solving a system of nonlinear transcendental equations. Genetic Algorithm is used to solve nonlinear transcendental equations for PWM-SHE. Many methods are available to eliminate the higher order harmonics and it can be easily removed. But the greatest challenge is to eliminate the lower order harmonics and this is successfully achieved using Genetic Algorithm without using Dual transformer. Simulations using MATLABTM and Powersim with experimental results are carried out to validate the solution. The experimental results show that the harmonics up to 13th were totally eliminated.

scholarly journals A Different Voltage-Source Power Inverter with Carrier Based SPWM for Open-End Connection Loads

Energies ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 3251
Author(s):  
Suroso ◽  
Daru Tri Nugroho ◽  
Toshihiko Noguchi
Keyword(s):  
Pulse Width Modulation ◽  
Voltage Source ◽  
Test Results ◽  
Source Power ◽  
Power Sources ◽  
Pwm Inverter ◽  
Dc Power ◽  
Ac Motor ◽  
Input Side ◽  
Inverter Circuit

This paper presents a new configuration of voltage source inverter with a simplified circuit for generating five-level pulse width modulation (PWM) voltage waveform. Compared with conventional inverter configuration, this circuit is drastically able to simplify the structure and reduce the required number of active switch components. The new inverter circuit is very suitable for the use of open-end connection loads such as open-end winding ac motor drive application. Instead of using separated dc power sources, the new inverter circuit configuration is also possible to utilize only one dc voltage source, so the power supply circuits can be made simpler. Furthermore, to reduce ripples of dc capacitor voltages, the voltage stabilizing circuit of capacitors at the input side was proposed and applied. The stabilizing circuit is capable to work reducing the size of dc capacitors, and maintaining voltage stability of capacitors through charging and discharging operation modes. The working principles of inverter circuit were evaluated and examined by means of computer simulations using PSIM software. In addition, experimental test results of the prototype were also provided. Test results proved that the new five-level PWM inverter operated well generating five-level output waveform with smaller distortion and less voltage ripples of dc capacitors.

scholarly journals INVERTER PWM UNTUK MENGGERAKKAN MESIN ARUS SEARAH TANPA SIKAT BERBASIS ARDUINO

2020 ◽  
Vol 7 (4) ◽  
pp. 68
Author(s):  
Sony Prakarsa Putra ◽  
Zulwisli Zulwisli
Keyword(s):  
Electric Vehicles ◽  
Duty Cycle ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Voltage Source ◽  
Pwm Inverter ◽  
Dc Voltage ◽  
Unidirectional Flow ◽  
Three Phase ◽  
Frequency Pulse

This study aims to create a PWM inverter that can drive the Brushless Unidirectional Flow Machine (MASTS). PWM inverters are intended to correct deficiencies in six-step inverters. Inverter is a circuit that is used to convert a DC voltage source into an AC voltage with a certain frequency. The use of inverters is found in electric vehicles. The system often used to control an inverter is a Pulse Width Modulation (PWM) based control, where pulse width is used to regulate speed. The inverter is tested using 3 pairs of mosfets as a switch to control the three-phase output of the inverter. In the inverter, PWM is used to adjust the width of the frequency pulse that will be given to the mosfet. This research used 3 variations of duty cycle 30%, 60%, 90% to determine the effect of MASTS speed on PWM by using a PWM inverter. The results of this study the speed of MASTS can be influenced by changes in duty cycle, with increasing value of the duty cycle, the faster the speed of MASTS, and vice versa. Keywords:Mosfet, Sensor Hall, MASTS, PWM, Inverter.

Comparative Study of SPWM and HEPWM Techniques for Photovoltaic Inverter

2015 ◽  
Vol 1115 ◽  
pp. 555-559
Author(s):  
Douadi Bendib ◽  
F. Akel ◽  
M. Chikh ◽  
C. Larbes ◽  
M. Laour ◽  
...  
Keyword(s):  
Pulse Width Modulation ◽  
Evaluation Study ◽  
Voltage Source ◽  
Phase Voltage ◽  
Voltage Source Inverter ◽  
Pv Array ◽  
Harmonic Elimination ◽  
Output Quality ◽  
Three Phase ◽  
Sinusoidal Pulse Width Modulation

This paper presents an evaluation study of two pwm techniques applied to a three-phase voltage source inverter supplied by photovoltaic (PV) energy sources. A Pspice-based model of the pv array is developed and tested. The power and currant of the pv array versus the voltage is plotted. Then the pv array is connected to a basic three phase voltage source inverter VSI. Two control techniques are used. The first one is the classic sinusoidal pulse width modulation spwm, which is based on the comparison of two signals, the sinusoidal reference and a triangular carrier. The second one is based on the principle of harmonic elimination. The system is simulated using orcad-pspice, the results are given, discussed and compared based on different performance indices (output quality, thd, frequency).

scholarly journals Three-Phase PWM Voltage-Source-Inverter Weight Optimization for Aircraft Application Using Deterministic Algorithm

Electronics ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1393
Author(s):  
Adrien Voldoire ◽  
Jean-Luc Schanen ◽  
Jean-Paul Ferrieux ◽  
Alexis Derbey ◽  
Cyrille Gautier
Keyword(s):  
Pulse Width Modulation ◽  
Deterministic Algorithm ◽  
Voltage Source ◽  
Weight Optimization ◽  
Optimization Strategy ◽  
Pwm Inverter ◽  
Thermal Constraints ◽  
Three Phase ◽  
Gradient Based ◽  
Aircraft Application

In this paper, a design by optimization process is used to size a 10-kW three-phase pulse width modulation (PWM) inverter for aeronautic application. The objective function is the converter weight, which has to be minimized. Sizing constraints are the efficiency, alternating current (AC) and direct current (DC) harmonics, and thermal constraints on all devices. A deterministic algorithm is chosen since it allows obtaining quick results and dealing with a large number of variables. All equations are analytical, in order to comply with this gradient-based optimization strategy, which imposes the derivability of the models. Several optimization results using different AC inductor solutions (iron powder and ferrite) are compared. The optimized converters were built and tested experimentally to verify their performances. Semiconductor and inductor losses were measured accurately using calorimetric test benches. The optimality of the solutions was carefully verified by changing parameters.

scholarly journals A VSC Transmission System Using Flying Capacitor Multilevel Converters and Selective Harmonic Elimination PWM Control

2006 ◽  
Vol 5 (2) ◽  
Author(s):  
Lie Xu ◽  
Vassilios G. Agelidis
Keyword(s):  
Pulse Width Modulation ◽  
Control Method ◽  
Transmission System ◽  
Voltage Source ◽  
Pwm Control ◽  
Multilevel Converters ◽  
Harmonic Elimination ◽  
Selective Harmonic Elimination ◽  
Small Change ◽  
Current Polarity

A transmission system based on voltage-source three-level flying capacitor (FC) multilevel converters with selective harmonic elimination pulse-width modulation (SHE-PWM) control is presented in this paper. The generation of the switching patterns for each power device is described taking into account the natural balancing of the FC voltages. A new and simple control method for balancing the FC voltages of the FC converter when using SHE-PWM is proposed which is based on the small change of the firing angle according to the load current polarity. Implementation of the SHE-PWM with capacitor voltage balancing is provided. Simulation studies for a 300MW/+-150kV transmission system are presented to confirm the satisfactory performance of the proposed system.

Elimination of Lower Order Harmonics in Seven-Level Cascaded Inverters

2015 ◽  
Vol 793 ◽  
pp. 206-210
Author(s):  
Baharuddin Ismail ◽  
Syed Idris Syed Hassan ◽  
Rizalafande Che Ismail ◽  
Azralmukmin Azmi
Keyword(s):  
Particle Swarm Optimization ◽  
Nonlinear Equation ◽  
Lower Order ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Pso Algorithm ◽  
Swarm Optimization ◽  
Harmonic Elimination ◽  
Selective Harmonic Elimination ◽  
Simulation Results

This paper deals with an elimination of lower order harmonics in the seven - level cascaded inverters. The main objective of selective harmonic elimination pulse width modulation strategy is eliminating lower order harmonic by solving nonlinear equations, while the fundamental component is satisfied. In this paper, the Particle Swarm Optimization (PSO) is applied to a seven-level inverter for solving the nonlinear equation. With the proposed approach, the required switching angles are computed efficiently by PSO algorithm. Lower order harmonics up to the 7th are eliminated. Simulation results verify the proposed method.

scholarly journals 9-Level Single DC Voltage Source Inverter Controlled Using Selective Harmonic Elimination

2018 ◽  
Vol 9 (3) ◽  
pp. 1251
Author(s):  
Ibrahim Haruna Shanono ◽  
Nor Rul Hasma Abdullah ◽  
Aisha Muhammad
Keyword(s):  
Pulse Width Modulation ◽  
Harmonic Distortion ◽  
Optimization Method ◽  
Transcendental Equation ◽  
Voltage Source ◽  
Switching Function ◽  
Algorithm Optimization ◽  
Harmonic Elimination ◽  
Selective Harmonic Elimination ◽  
Converter Topology

<p>This paper presents an efficient cascaded H-bridge inverter topology that is controlled using an optimized selective harmonic elimination pulse width modulation technique. The switching angles are obtained by solving the nonlinear transcendental equation with the aid of genetic algorithm optimization method. Unlike the usual H-bridge converter topologies that require multiple individual direct current (DC) sources and additional switching components per voltage step, the proposed topology utilizes a single DC source to supply two full-bridge modules. The modified topology employs a cascaded multi-winding transformer that has two independent primary windings and series-connected secondary side with 1:E  and 1:3E  turn ratios. The converter topology and switching function are proven to be reliable and efficient, as the total harmonic distortion (THD) is quite low when compared with the conventional H-bridge topology controlled by other modulation techniques. This feature makes it attractive to renewable energy systems, distributed generation, and highly sensitive equipment such as those used in medical, aerospace, and military applications. The topology is simulated using a PSIM package. Simulation results show that all the 11-level lower order odd harmonics are eliminated or suppressed in compliance with the SHE elimination theorem of (N-1).</p>

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