Power Quality Analysis for Modular Structured Multilevel Inverter with Bipolar Variable Amplitude Multicarrier Pulse Width Modulation Techniques
نویسندگان
چکیده
MultiLevel Inverter (MLI) is used in applications that need high voltage and high current especially for Flexible AC Transmission System (FACTS) controllers. The topologies of multilevel inverter have several advantages such as lower Total Harmonic Distortion (THD), lower ElectroMagnetic Interference (EMI) generation and high output voltage. The main feature of Modular Structured Multilevel Inverter (MSMI) is the ability to reduce the voltage stress on each power device due to the utilization of multilevel on the DC bus. The advent of multilevel inverter topologies has caused variety of pulse width modulation strategies. In this paper, multi carrier pulse width modulation techniques are proposed which can minimize the total harmonic distortion and enhance the output voltage for five level cascaded MLI. Methodologies adopting the Constant Switching Frequency (CSF) and Control Freedom Degree (CFD) concepts are proposed in this paper. To validate the developed technique, simulations are carried out through MATLAB/SIMULINK for the chosen five level inverter. Harmonic analysis and evaluation of performance measures for various modulation indices have been carried out. The above methodologies are divided into two types of techniques like (I) phase disposition pulse width modulation which minimizes total harmonic distortion and (II) Carrier Overlapping Pulse
منابع مشابه
Control of Three Phase Cascaded Multilevel Inverter Using Various Noval Pulse Width Modulation Techniques
In this paper, various novel pulse width modulation techniques are proposed, which can minimize the total harmonic distortion and enhances the output voltages from five level inverter to multilevel topologies. Multilevel inverters are important for power electronics applications such as flexible ac transmission systems, renewable energy sources, uninterruptible power supplies and active power f...
متن کاملComparative Study of Constant Switching Frequency and Variable Switching Frequency Multicarrier Pulse width Modulation for Three Phase Cascaded Multilevel Inverter
This Paper Presents a comparative study of Constant Switching frequency Multicarrier Pulse width Modulation and Variable Switching frequency Multicarrier Pulse width Modulation. The emergence of Multilevel converter has been in increase since the last decade . These new type of converters are suitable in high voltage & high power application due to their ability to synthesize waveforms with bet...
متن کاملComparative Study of Multicarrier PWM Techniques for a Modular Multilevel Inverter
Abstract— This paper presents the simulation of three phase five-level modular multilevel cascade inverter based on double-star chopper-cell (DSCC). The multicarrier PWM techniques such as Phase disposition PWM (PDPWM), Phase opposition disposition PWM (PODPWM), Alternate phase opposition disposition PWM (APODPWM), and Phase shift PWM (PSPWM) is employed and a comparative study is done based on...
متن کاملDesign and Performance Analysis of 7-Level Diode Clamped Multilevel Inverter Using Modified Space Vector Pulse Width Modulation Techniques
In this paper, a 7-level Diode Clamped Multilevel Inverter (DCMLI) is simulated with three different carrier PWM techniques. Here, Carrier based Sinusoidal Pulse Width Modulation (SPWM), Third Harmonic Injected Pulse Width Modulation (THIPWM) and Modified Carrier-Based Space Vector Pulse Width Modulation (SVPWM) are used as modulation strategies. These modulation strategies include Phase Dispos...
متن کاملHarmonic Evaluation of Multicarrier Pwm Techniques for Cascaded Multilevel Inverter
Multilevel voltage source inverter has been recognized as an important alternative to the normal two level voltage source inverter, especially in high power application. Using multilevel technique, the output voltage amplitude is increased, switching devices stress is reduced and the overall harmonics profile is improved. Three presentable topologies can b considered for multilevel inverter (ML...
متن کامل