Query: Three phase h bridge multilevel inverter 2019

Candidate papers:

abstract: In this paper a hardware implementation of single phase cascaded H bridge three level multilevel inverter (MLI) using sinusoidal pulse width modulation (SPWM) is presented. There are a few interesting features of using this configuration, where less component count, less switching losses, and improved output voltage/current waveform. The output of power inverter consists of three form, that is, square wave, modified square wave and pure sine wave. The pure sine wave and modified square wave are more expensive than square wave. The focus paper is to generate a PWM signal which control the switching of MOSFET power semiconductor. The sine wave can be created by using the concept of Schmitt Trigger oscillator and low pass filter topology followed by half of the waveform will be eliminated by using the circuit of precision half wave rectifier. Waveform was inverted with 180o by circuit of inverting op amp amplifier in order to compare saw tooth waveform. Two of PWM signal were produced by circuit of PWM and used digital inverter to invert the two PWM signal before this PWM signal will be passed to 2 MOSFET driver and a 3 level output waveform with 45 Hz was produced. As a conclusion, a 3 level output waveform is produced with output voltage and current recorded at 22.5 Vrms and 4.5 Arms. The value of measured resistance is 0.015 that cause voltage drop around 0.043 V. Based on the result obtained, the power for designed inverter is around 100W and efficiency recorded at 75%
author_names: A Shamsul Rahimi A Subki

Mohd Zaidi Mohd Tumari

Wan Norhisyam Abd Rashid

Aiman Zakwan Jidin

Ahmad Nizammuddin Muhammad Mustafa
title: Hardware implementation of single phase three level cascaded h bridge multilevel inverter using sinusoidal pulse width modulation
venue: International Journal of Power Electronics and Drive Systems (IJPEDS)
year: 2019

abstract: Power converters are essential for allowing increasingly more solar energy to be connected to power systems. In this paper, a model predictive control of a three phase 7 level CHB multilevel inverter for solar energy injection is developed, using the incremental conductance algorithm for establishing an MPPT strategy which maximises PV energy from the system. In order to prove the proposed control scheme, simulations in MATLAB/Simulink are carried out. The predictive current control strategy, the dc voltage control, and the MPPT controller proved proper steady state operation and proper response in front of external disturbances. Thus, solar energy injection to the grid can be maximised using the proposed 7 level CHB multilevel inverter.
author_names: Carlos Munoz

Ariel Villalon

Javier A Munoz

Marco E Rivera

Maryam Sarbanzadeh

Mohammad Ali Hosseinzadeh
title: Predictive Control of a Three Phase Cascaded H Bridge Multilevel Inverter for Solar Energy Injection
venue: 2019 IEEE International Conference on Industrial Technology (ICIT)
year: 2019

abstract: CHB multilevel converters play a role for optimising the use of solar electricity as they allow a more efficient energy conversion. In this work, a classic control of a CHB multilevel inverter for PV energy injection is developed, considering grid disturbance compensation and an MPPT strategy for maximising PV energy. In order to prove the proposed control scheme, simulations in MATLAB/Simulink are carried out. The current control strategy, the dc voltage control, and the MPPT controller proved proper steady state operation and proper response in front of external disturbances. Additionally, the inclusion of a dynamic decoupler for the inverters output current control proved to be useful tool for controlling multilevel converters. Thus, solar energy injection to the grid can be maximised using the proposed 7 level CHB multilevel inverter.
author_names: Ariel Villalon

Carlos Munoz

Javier A Munoz

Marco E Rivera

Maryam Sarbanzadeh

Mohammad Ali Hosseinzadeh
title: Control of a Three Phase Cascaded H Bridge Multilevel Inverter for Solar Energy Injection
venue: 2019 IEEE International Conference on Industrial Technology (ICIT)
year: 2019

abstract: This paper presents fell H connect staggered inverter topology for fixed DC source and sun oriented PV application. The topology referenced in this paper represents justifies over the current customary inverters topologies. The proposed topology step up the low PV voltage, and yet checks the most extreme power through SPV cluster with the help of MPPT controller. The topology offers low present and voltage THD; likewise DC component is in reasonable breaking points. The consequences of the proposed H Bridge staggered inverter topology have been checked utilizing MATLAB Simulink model.
author_names: Kushal Anand

Saad Nazif Ahamad Faruqui

Asif Ali
title: Three Phase Transformerless Cascaded H Bridge Solar PV Multilevel Inverter
venue: 2019 International Conference on Computing, Power and Communication Technologies (GUCON)
year: 2019

abstract: This paper proposes an advanced approach to control a cascaded H bridge multilevel photovoltaic (PV) inverter with failed cells for large scale grid connected applications. A major challenge of these PV systems come from the uneven power distribution among the PV cells on the same phase due to environmental conditions, which then leads to a power imbalance between the three phases. The power imbalance issue can also come from the presence of at least one H bridge cell fully damaged and bypassed. To produce a balanced three phase voltage and current regardless of the fact that the phase to neutral voltages are imbalanced, a neutral shift method is proposed in this paper. It is based on the modification of the PWM reference phase voltage angles combined to injection of a dynamic homopolar component. A multi carrier phase disposition PWM strategy with a switching optimization function has been also suggested.
author_names: P M Lingom

Joseph Song-Manguelle

Jean-Maurice Nyobe-Yome

Daniel Legrand Mon-Nzongo

Tao Jin

Mamadou Lamine Doumbia
title: Control of a Cascaded H bridge Multilevel Inverter with Failed Cells for Grid Connected Application
venue: 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)
year: 2019

abstract: Inverter have a many variety of application ranging from simple converting of battery power to ac to high power HVDC transmission of electricity for a long distance. To avoid damage variable frequency drives used on large scale worldwide, make inverter very important device. This paper proposes a simple simulation model of three phase conventional inverter used for speed control of induction motor (two level) and cascade H bridge multilevel inverter(five level) used for speed control of induction motor (closed loop) using sinusoidal PWM. Hardware implementation of above mention topology is done and compare simulation results and hardware results.
author_names: Vivek D Kore

Kunal Makarand Pisolkar

Vidyulata Joshi

Anish Bhurke

Ketan M Isane
title: 5 level cascade H bridge multilevel inverter fed induction motor drive using sinusoidal PWM
venue: 2019 2nd International Conference on Intelligent Computing, Instrumentation and Control Technologies (ICICICT)
year: 2019

abstract: A cascaded H bridge multilevel inverter is presented in this paper. The inverter uses only one H bridge that is excited from an isolated DC source and will be connected in cascade with a number of H bridges whose dc links are formed by floating capacitors. Floating capacitors work on the principle of level doubling and have the capability to converge to the desired steady state voltages without demanding any closed loop control techniques. In steady state, all the DC link voltages maintain a binary asymmetric ratio. The inverter generates a seventeen level phase voltage and a thirty three level line voltage at unity modulation index. Regardless of the modulation index and power factor, self balancing of capacitor voltage is achieved. Simulation of the proposed converter is carried out in MATLAB/ SIMULINK.
author_names: V Rajesh

Sumit Kumar Chattopadhyay

Chandan Chakraborty
title: Cascaded H Bridge Multilevel Inverter with Single DC Source for Medium Voltage Drive Applications
venue: IECON 2019 45th Annual Conference of the IEEE Industrial Electronics Society
year: 2019

abstract: This paper addresses experimental implementation of a single phase multilevel inverter consisting of three H bridge inverter cells to generate 5, 7, 9, 11 and 13 level output voltages. The proposed system consists of a microcontroller, three separate input dc sources, isolating circuits and three cascaded H bridge MOSFET based voltage source inverters. ATmega 2560 microcontroller based Arduino board has been used to generate proper gate signals for twelve MOSFETs of the three H bridge inverter cells. Twelve pins of the microcontroller has been used to generate twelve gate drive signals and the microcontroller has been programmed using simple algorithm compared to the previous techniques. Different level output voltages have been obtained from experimental works using the same cascaded H bridge inverter which require less power switching devices. The experimental results show that total harmonic distortion is reduced with increasing number of levels at the output voltage of the multilevel inverter.
author_names: Ashique Anan Abir

Tapan Kumar Chakraborty

Khandaker Sultan Mahmood
title: >An Experimental Study of Cascaded H Bridge Multilevel Inverter for Obtaining Multiple Voltage Waveforms Containing Different Number of Levels
venue: 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)
year: 2019

abstract: A Multilevel Inverter that uses less hardware, which is energy efficient and has reduced switching and conduction losses is proposed. This topology is developed from a symmetrical structure enhanced multilevel inverter (MLI) It consists of a seventeen level symmetrical structure enhanced H Bridge, a DC source in series with the load through a switch and another switch to bypass the DC input source. By way of the addition of a DC input source, the number of levels of the proposed inverter has been increased to thirty three; hence, the total harmonic distortion (THD) is reduced. Only four switches are in its active conducting state in each mode of operation due to which the power losses are reduced compared to a CHB and Developed H Bridge MLI. The proposed single phase multilevel inverter is simulated using MATLAB/ Simulink, and the results have been confirmed experimentally with a prototype.
author_names: Tamizhselvan Annamalai

K Udhayakumar

S Anitha

D Pachaikani

P Sasikumar

M R Mythily
title: Energy Efficient Reference Tracking Modified Enhanced H Bridge Multilevel Inverter
venue: 2019 IEEE 1st International Conference on Energy, Systems and Information Processing (ICESIP)
year: 2019

abstract: ABSTRACT This paper presents a new voltage regulation structure for multilevel inverters using discrete variation of DC sources. In the proposed method, discrete variation is achieved based on multi tap transformers for applications where the DC sources are isolated and supplied by three phase transformers, e.g. medium voltage (MV) motor drive applications. Moreover, by utilising the new solution, the number of required DC regulators is reduced significantly, for applications where the optimum modulation index with variable DC sources is used which suffer from large number of required converters. In addition, this paper proposes a new algorithm for optimising the switching angles, turn ratios of the multi tap transformers and DC sources to maintain the voltage distortions at the standards levels for a wide range of output voltage regulation. To verify the feasibility of the new solution, a laboratory prototype is implemented based on a 2 cell cascaded H bridge (CHB) multilevel inverter with unequal DC sources (with 9 level operation) while the proposed structure can be applied for other CHB multilevel inverters and switching strategies.
author_names: Ahmad Behzadi Nezhad

Alireza Namadmalan

Ali Rahdarian
title: Cascaded H bridge multilevel inverters with discrete variation of DC sources
venue: International Journal of Electronics
year: 2019