scholarly journals Microcontroller Based Less Switches Topology and Digital Gating Technique for Single-Phase Five-Level Inverter

2013 ◽  
Vol 2013 ◽  
pp. 1-9
Author(s):  
Mahmoud Shaker ◽  
Samir Jasim ◽  
Ali Sha'ban
Keyword(s):  
High Performance ◽  
Single Phase ◽  
Pulse Width Modulation ◽  
Multilevel Converter ◽  
Voltage Waveform ◽  
Power Circuit ◽  
Power Semiconductor ◽  
Semiconductor Switches ◽  
Higher Power ◽  
Elementary Concept

The multilevel inverter is the idea of connecting such distributed DC energy sources (solar and fuel cells in addition to rectified output of wind turbines) to a power grid. Multilevel pulse width modulation (PWM) inverters have gained importance in high performance power applications without requiring high ratings on individual devices. The elementary concept of a multilevel converter to achieve higher power is to use a series of power semiconductor switches with several lower voltage DC sources to perform the power conversion by synthesizing a staircase voltage waveform. In the present paper we introduce a power circuit for single-phase five-level inverter which contains a very lower number of switches and the technique for the generation of required signals to control the operation of the inverter switches. The presented technique is implemented via microcontroller ATmega16. The simulation and practical results are presented.

Hardware Implementation of 3-level Inverter using Microcontroller for Single Phase Induction Motor

2016 ◽  
Vol 5 (2) ◽  
pp. 99
Author(s):  
Veena B.M. ◽  
Parimala S.K.
Keyword(s):  
Induction Motor ◽  
Single Phase ◽  
Hardware Implementation ◽  
Multilevel Inverter ◽  
Voltage Waveform ◽  
Power Semiconductor ◽  
Semiconductor Switches ◽  
Higher Power ◽  
Elementary Concept ◽  
Lower Voltage

<p>The conventional two level inverter has many limitations for high voltage &amp; high power applications. The term multilevel began with the three-level inverter. Subsequently, several multilevel inverter topologies have been developed. However, the elementary concept of a multilevel inverter to achieve higher power is to use a series of power semiconductor switches with several lower voltage dc sources to perform the power conversion by synthesizing a staircase voltage waveform. Output voltage of 3 level inverter consists of 3 levels, which results smoother output. And hence the THD will be reduced. In this paper Simulink of 3 level inverter and the hardware implementation of micro controller based control of multilevel inverter for single phase Induction motor are presented.</p>

scholarly journals Pengiriman Daya dari Inverter Lima Tingkat ke Grid Satu Fasa Menggunakan Arduino Due

2020 ◽  
Vol 12 (2) ◽  
pp. 80-87
Author(s):  
Iwan Kristiawan ◽  
Leonardus Heru Pratomo
Keyword(s):  
Pulse Width ◽  
Single Phase ◽  
Pulse Width Modulation ◽  
Energy System ◽  
Transmitted Power ◽  
Power Semiconductor ◽  
Semiconductor Switches ◽  
Semiconductor Switch ◽  
Modulation Signal ◽  
Sinusoidal Pulse Width Modulation

Inverter has been used for a wide variety of applications in renewable energy system. The use of inverter in a solar power plant system can off-grid and on-grid. H-Bridge inverter is one of the commonly used inverter. One of its disadvantages is the requirement of high frequency in order to get a low defect level on the output current. The use of a five-level inverter with considering the amount of a power semiconductor switch in can be as an alternative. This study aims to use a five-level inverter with five power semiconductor switches to deliver power to the grid.The working principle uses two sinusoidal signals that are shifted by 1800 compared to two carrier signals to produce a sinusoidal pulse width modulation signal. A sinusoidal pulse width modulation signal is used as a controller on each power semiconductor switch. The transmitted power is in the form of a current that is injected into the single-phase grid. The transmission of a power using five-level inverter to a single-phase grid was validated by a Power Simulator software. The final stage was a hardware implementation in the laboratory. The result shows that the inverter could transmit a power as current with 4.01% THDi, transmitted power as 36.4 Watts, and transmitted current as 0.52 Amps.

scholarly journals Design and Experimental Verification of a Single-Phase Asymmetric Hybrid Multi-level Inverter

2020 ◽  
Vol 3 (2) ◽  
pp. 1-17
Author(s):  
Ahmet Mete VURAL ◽  
Ali Osman ARSLAN ◽  
Mustafa DENİZ
Keyword(s):  
Single Phase ◽  
Pulse Width Modulation ◽  
Experimental Studies ◽  
Harmonic Distortion ◽  
Maximum Efficiency ◽  
Output Level ◽  
Semiconductor Switches ◽  
Harmonic Content ◽  
Asymmetric Hybrid ◽  
Multi Level

In recent years, multi-level inverters have emerged as a feasible power conversion solution for medium and high power applications due to better harmonic performance and ability to operate at high voltage/power when compared to traditional two-level inverters. Since the output level of the multi-level inverters depends on the number of the switching elements, as more levels are required, more switching elements are used. This situation makes the circuit and the control design complex and the losses to upsurge. To overcome these limitations and produce low harmonic content at the output, reduced switch count topologies are popular. In this study, a single-phase asymmetric hybrid multi-level inverter is proposed by combining diode clamped and cascaded H-bridge topologies. The inputs of the proposed inverter are selected as two unequal DC voltage sources. In this regard, fewer switching elements are used to obtain the same number of voltage levels at the output when compared to traditional multi-level inverters. The efficiency and the harmonic performance of the proposed topology is both verified by simulation and experimental studies. The gating signals of the semiconductor switches are produced by phase disposition pulse width modulation with carriers’ frequency of 4 kHz. It is shown by the experiments that a maximum efficiency of 94 % and a total harmonic distortion of 29 % are attained in the case studies.

scholarly journals Implementation of SHE-PWM technique for single-phase inverter based on Arduino

2021 ◽  
Vol 11 (4) ◽  
pp. 2907
Author(s):  
Laith A. Mohammed ◽  
Taha A. Husain ◽  
Ahmed M. T. Ibraheem
Keyword(s):  
Output Voltage ◽  
Single Phase ◽  
Pulse Width Modulation ◽  
Practical Implementation ◽  
Half Cycle ◽  
Voltage Waveform ◽  
Pwm Inverter ◽  
Phase Inverter ◽  
Wide Range ◽  
Single Phase Inverter

This paper presents design and practical implementation of single-phase inverter based on selective harmonic elimination-pulse width modulation (SHE-PWM) technique. Microcontroller mega type Arduino used as a controller for producing the gate pulses. The optimized switching angles determination results in wide range of output voltage. Depending on number of switching angles, the lower order harmonics (LOHs) can be eliminated to improve the output voltage waveform. A comparison study using MATLAB/Simulink for sinusoidal-PWM and SHE-PWM techniques, which shows for the same LOH in the output voltage waveform, the SHE-PWM has less number of pulses per half cycle than sinusoidal-PWM strategy. The reduction in number of pulses results less switching losses. The simulation done using ten switching angles to drive R-L load. A prototype of SHE-PWM inverter with R-L load is used to validate the simulation results.

scholarly journals Performance Analysis of 3-Level 5-Phase Multilevel Inverter Topologies

2017 ◽  
Vol 7 (4) ◽  
pp. 1696
Author(s):  
B. Jyothi ◽  
M. Venu Gopala Rao
Keyword(s):  
Pulse Width Modulation ◽  
Industrial Applications ◽  
Simulation Software ◽  
Multilevel Inverter ◽  
Power Semiconductor ◽  
Semiconductor Switches ◽  
Three Phase ◽  
Electrical Vehicles ◽  
Multi Level ◽  
Sinusoidal Pulse Width Modulation

Now a day’s many industrial applications requires high power. Some other appliances may require intermediate power either more or less depending upon their operation. With these consequences, MULTI LEVEL INVERTERS are introduced in 1975.for above intermediate voltage applications. The name MULTI LEVEL began with the three-level converter.By enormous advancement in power semiconductor switches, in electric drives increasing the phase number greater than the conventional three phase especially in locomotives, naval, aerospace, and electrical vehicles industry has many advantages than three phase. In this view, here five phase VSI has developed. This paper aims at comparing the performance of conventional two level inverter Diode clamped and Capacitor clamped topologies of 5-phase multilevel inverter (3-level) using sinusoidal pulse width modulation. SPWM is highly economical, has more efficiency, controllability. These circuits are analyzed by using simulation software package such as MATLAB.

scholarly journals Simulation and Implementation of Single Phase Quasi Z-Source Series Resonance DC DC Converter for Photovoltaic Application

2020 ◽  
Vol 9 (10) ◽  
pp. 294-298
Keyword(s):  
High Performance ◽  
Single Phase ◽  
Pulse Width Modulation ◽  
Input Voltage ◽  
Operating Modes ◽  
Series Resonance ◽  
Photovoltaic Application ◽  
Series Resonant ◽  
Load Regulation ◽  
Multimode Operation

The paper presents quasi-Z source series resonant dc–dc converter with high performance for PV applications. Their multimode operation property features wide input voltage and load regulation range. Multimode operation achieved by pulse width modulation and phase shift modulation which gives boost and buck operating modes. Paper includes experimental setup which ensures 13volts ripple free output voltage.

scholarly journals Review of Multilevel Inverters and Their Control Techniques

2020 ◽  
Vol 5 (6) ◽  
pp. 659-664
Author(s):  
Ibrahim Emmanuel Tashiwa ◽  
Gyang Davon Dung ◽  
Benson Stephen Adole
Keyword(s):  
Review Paper ◽  
Solar Panels ◽  
Voltage Waveform ◽  
Power Semiconductor ◽  
Multilevel Inverters ◽  
Control Techniques ◽  
Semiconductor Switches ◽  
Ac Power ◽  
Multi Level ◽  
Lower Voltage

Multi-level inverter is attaining higher AC power using a series of power semiconductor switches with numerous lower voltage DC sources to implement the power conversion by synthesizing a staircase voltage waveform. Sources like super capacitors, batteries, solar panels and other renewable energy voltage sources make up the multiple DC voltage sources. This work looks at the advantages and likely disadvantage of multi-level inverter, highlighting some of the shortfalls of existing inverter topologies while considering the effects of emerging Hybrid MLI Topologies. Hence this review paper proposes a distinctive seven level cascaded H-bridge multi-level inverter configuration in which the POD PWM technique is adopted. This design would potentially redress the problems inherent in other inverter circuit topologies reviewed.

scholarly journals Disain SPWM Multilevel Inverter Satu Fasa Lima Belas Level

2016 ◽  
Vol 12 (2) ◽  
pp. 60
Author(s):  
Effendi Effendi ◽  
Ira Devi Sara ◽  
Rakhmad Syafutra Lubis
Keyword(s):  
Single Phase ◽  
Pulse Width Modulation ◽  
Bridge Circuit ◽  
Logic Gates ◽  
Multilevel Inverter ◽  
Circuit Switching ◽  
Power Circuit ◽  
Op Amp ◽  
Switching Method ◽  
Sinusoidal Pulse Width Modulation

Fifteen level single phase multilevel inverter is constructed using power circuit consist of 7 MOSFETs, seven independents DC sources, seven diodes, and an H-Bridge circuit. Switching method used in this MLI is sinusoidal pulse width modulation (SPWM) multicarrier where the reference wave in the form of a sinusoidal wave.  Multicarrier SPWM circuit is designed using electronic components such as Op-Amp that used as a comparator and some logic gates such as AND, OR and NOT gate to trigger S1, S2, S3, S4, S5, S6, S7, and H-Bridge circuit. Carrier waves used in this MLI modified from the triangle wave that having a frequency into carrier waves without frequency (DC sources) where THD that generated into 5.502%. While methods that use frequency such as Phase Disposition PWM (PD PWM), Phase Shift PWM (PS-PWM), and Carrier Overlapping PWM (CO PWM) that produces THD greater than the proposed method, this system was simulated using PSIM software. 

scholarly journals Deadbeat Control of a Modified Single-Phase Five-Level Photovoltaic Inverter with Reduced Number of Switches

2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Mohsen Ghorbanali Afjeh ◽  
Mojtaba Babaei ◽  
Mohsen Alizadeh Bidgoli ◽  
Amir Ahmarinejad
Keyword(s):  
Single Phase ◽  
Pulse Width Modulation ◽  
Control Method ◽  
Digital Signal ◽  
Voltage Source ◽  
Switching Frequency ◽  
Semiconductor Switches ◽  
Optimal Output ◽  
Pv Inverter ◽  
Blocking Voltage

In this article, a modified single-phase five-level photovoltaic inverter is proposed with a single DC voltage source and six semiconductor switches. Compared with the presented inverters, the introduced topology has the advantage of decreased device count and the first switching frequency for high blocking voltage switches. The proposed PV inverter is implemented without clamping diodes and transformers, which leads to a decrement in size and, consequently, the weight of the converter. In addition, for the proposed topology, space vector pulse width modulation (SVPWM) is deployed that reduces the complexity of multilevel modulation. In order to obtain the optimal output voltage of the inverter, the deadbeat controller is suggested as a rapid dynamic, low-computation digital control method. This closed-loop inverter is implemented in TMS320f28335 digital signal controller to evaluate the performance of the proposed inverter under nonlinear and linear loads. Simulation and laboratory prototype results show that IEC 62040-3 harmonic constraints is met for the proposed photovoltaic inverter in standalone applications.

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