Comparative evaluation of pulse width modulation techniques on effective DC link voltage utilization of grid connected inverter
03 Mar 2016-pp 2376-2383
TL;DR: In this article, the authors compared two different Pulse Width Modulation (PWM) techniques employed for three phase voltage source inverter (VSI) and discussed the performance of the same by comprehensively analyzing the simulation results.
Abstract: In this paper, comparison between two different Pulse Width Modulation (PWM) techniques employed for three phase voltage source inverter (VSI) is discussed. The three phase voltage source inverter is basic topology used to supply a grid. In this paper we have design a LC filter between the inverter and the grid in order to stabilize the output voltage. The filter gives sinusoidal three phase voltage at the output of the inverter with almost zero/less harmonic distortion. A suitable PWM technique is employed to obtain the required output voltage in the line side of the inverter. The PWM generation techniques used mainly based on sinusoidal based Pulse Width Modulation (SPWM) and Space Vector based Pulse Width Modulation (SVPWM). In SPWM method involves the comparison of the three phase reference modulating signals with a common triangular carrier wave to generate the pulses for the three phases. Whereas, in SVPWM method, a revolving reference voltage vector is provided as voltage reference instead of three phase modulating waves. This paper analyses these two Pulse Width Modulation techniques for grid connected inverter and to study the performance of the same by comprehensively analyzing the simulation results.
Citations
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28 Mar 2018
TL;DR: In this paper, a two level pulse width modulation (PWM) generator and a filter circuit has been proposed for reduction of total harmonic distortion or THD of current and voltage outputs of the three phase voltage source inverter.
Abstract: This paper presents modeling of a gate pulse triggered three phase 180° voltage source inverter or VSI model supplying nonlinear loads with its output voltage and current waveforms. A two level pulse width modulation or PWM generator and a filter circuit has been proposed here for reduction of total harmonic distortion or THD of current and voltage outputs of the three phase voltage source inverter. In this PWM generator the modulating signal is compared with a high frequency triangular carrier wave. The PWM technique used here is sinusoidal pulse width modulation or SPWM technique. With the application of SPWM and filter the performance of the VSI will be analyzed using MATLAB SMULINK and FFT toolbox. As a result reduction of THD can be seen in the VSI model in both current and voltage output.
20 citations
Cites background from "Comparative evaluation of pulse wid..."
...The line side Fundamental component frequencies and magnitudes can be varied by varying modulation signal frequency and magnitude [14]....
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01 Nov 2018
TL;DR: The two most used MPPT techniques like P&O and Incremental Conductance are discussed, which gives more efficiency during the extraction of solar energy has attracted many researchers towards Photo voltaic cell.
Abstract: the paper analysis the MPPT techniques used at grid connected PV system. The aim is to find techniques which gives more efficiency during the extraction of solar energy has attracted many researchers towards Photo voltaic (PV) cell. As it has a non- linear behavior, its output depends on the factors like solar temperature and ambient irradiance. The MPPT techniques are used to get maximum output from PV cell. Among the various MPPT technique, in this paper we discuss the two most used techniques like P&O and Incremental Conductance technique. Along with PWM techniques is also considered and a comparative study of all the three techniques used at 250 kV grid connected inverter is done. The results are taken through SIMULINK models at different weather conditions of Rajasthan state, Ajmer district
9 citations
01 Feb 2018
TL;DR: In this article, a comparative study of two diverse pulse width modulation techniques based on voltage source inverter (VSI) fed induction motor is provided, where the switching pulse can be generated by using different pulsewidth modulation (PWM) techniques.
Abstract: The paper provides the comparative study of two diversely used pulse width modulation technique based voltage source inverter (VSI) fed induction motor Induction motors are mostly used in every sector that may be industrial or commercial due to its easy handling nature For the control of the induction motor variable voltage and variable frequency is supplied by the voltage source inverter (VSI) Where the switching pulse can be generated by using different pulse width modulation (PWM) techniques The PWM techniques those are discussed in this paper are sinusoidal based Pulse Width Modulation (SPWM) and Space Vector based Pulse Width Modulation (SVPWM) The triggering pulse in the SPWM method is generated by comparing the sinusoidal wave with the triangular wave Whereas in case of the SVPWM strategy the pulse is generated by taking the revolving rotating vector as the reference vector instead of the three-phase sine wave as in case of SPWM strategy SVPWM method is the advance computational PWM technique This paper presents the complete analysis of three phase VSI fed induction motor using these two PWM techniques on the basis of the total harmonic distortion (THD) in current, transient behaviour and switching losses for modulation range of 0 to 1 MATLAB/SIMULINK programming has been utilized for the execution
5 citations
Cites background from "Comparative evaluation of pulse wid..."
...AC drives require both variable voltage and frequency, high power supply [1]....
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16 Dec 2020
TL;DR: In this paper, a standalone PV system is considered for the study with a DC-DC boost converter and a two-level three-phase Voltage Source Inverter (VSI) with a resistive-inductive load.
Abstract: Widespread irradiation from the sun can be converted to electricity through photovoltaic (PV) cells. But PV power is dependent on solar irradiation and environmental temperature. An inverter interfaces this DC power to AC power at standard voltage and frequency levels. A standalone PV system is considered for the study with a DC-DC boost converter and a two-level three-phase Voltage Source Inverter (VSI) with a resistive-inductive load. The boost converter is controlled for maximum power by the incremental conductance (INC) method. Pulse Width Modulation (PWM) technique is one of the most common methods to control the output of inverter voltage. Sinusoidal PWM (SPWM) and Space Vector Pulse Width Modulation (SVPWM) methods are purposefully applied to reduce the Total Harmonic Distortion (THD) and contrasted in simulation using MATLAB/Simulink. Compared to sinusoidal PWM, this technique implements the input DC voltage more efficiently and power quality performance increases greatly.
4 citations
Dissertation•
16 Jun 2018
TL;DR: This study investigates the requirements and technologies to provide power from shore to ship when the electric ferry is at quay in terms of requirements given by the utility grid owner BKK and the ferry company Fjord1.
Abstract: This study investigates the requirements and technologies to provide power from shore to ship when the electric ferry is at quay. Different rectifier systems will be evaluated in terms of requirements given by the utility grid owner BKK and the ferry company Fjord1. Two suitable rectifier systems based on voltage orientated control method will be simulated in Simulink under various load conditions. The simulation results will be evaluated with the grid parameters and requirements given by BKK. Important parameters to be considered are power factor, efficiency, harmonic distortion of current and voltage at the point of common coupling and stability of the rectifier. The voltage orientated rectifier system with L-filter is built in the laboratory where the goal is to validate the simulation results. The hardware design is based on insulated gate bipolar transistors from SEMIKRON and digital signal controller eZdsp delivered by spectrum digital.
2 citations
Cites background from "Comparative evaluation of pulse wid..."
...,V6 and two zero vectors V0 and V7 [25]....
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...79) The switching time for each sector is given in table 5 [25]....
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References
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Book•
03 Oct 2003
TL;DR: In this paper, an integrated and comprehensive theory of PWM is presented and the selection of the best algorithm for optimum pulse width modulation is an important process that can result in improved converter efficiency, better load (motor) efficiency, and reduced electromagnetic interference.
Abstract: An integrated and comprehensive theory of PWM. The selection of the best algorithm for optimum pulse width modulation is an important process that can result in improved converter efficiency, better load (motor) efficiency, and reduced electromagnetic interference. However, the identification of the best approach is a complex process requiring extensive mathematical manipulation.
2,450 citations
01 Jan 2003
1,724 citations
"Comparative evaluation of pulse wid..." refers background or methods in this paper
...One of the solutions to upgrade to a harmonic free environment in high power converters is to use PWM control techniques [3], [4], [5]....
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...They are widely used for applications like variable speed drives (VSD), static frequency changers (SFC), uninterruptible power supplies (UPS) etc [1], [3]....
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Book•
01 May 1986
TL;DR: An integrated treatment of technological advances in power electronics with a focus on power semiconductor devices, ac machines, phase-controlled converters and cycloconverters, voltage-fed inverter drives, current-fed inverted drives, slip powercontrolled drives, control of induction and synchronous machines, and microcomputer control.
Abstract: An integrated treatment of technological advances in power electronics Add this article to private library Remove from private library Submit corrections to this record View record in the new ADS and ac drives is presented. The topics include: power semiconductor devices, ac machines, phase-controlled converters and cycloconverters, voltage-fed inverter drives, current-fed inverter drives, slip powercontrolled drives, control of induction and synchronous machines, and microcomputer control. Both practical and theoretical aspects of the technology are addressed, and numerical examples are given. Bibtex entry for this abstract Preferred format for this abstract
850 citations
"Comparative evaluation of pulse wid..." refers background in this paper
...AC drives need a high power, variable voltage and variable frequency supply [1], [7]....
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...PWM switching technique not only targets the primary issues such as reduced Total Harmonic Distortion (THD), efficient dc bus utilization etc but also take care of secondary concerns like EMI reduction , lowering the switching loss, better harmonic spectrum [5], [7]....
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08 Oct 2000
TL;DR: In this paper, the inherent relations between sine-triangle and space-vector pulsewidth modulation schemes for three-level voltage-source inverters were studied and it was shown that the two schemes can function equivalently through proper selection of common-mode injections in the case of sine triangle modulation, or dwell times in equivalent redundant switching states in a space vector modulation scheme.
Abstract: This paper studies the inherent relations between sine-triangle and space-vector pulsewidth modulation schemes for three-level voltage-source inverters. It is shown that the two schemes can function equivalently through proper selection of common-mode injections in the case of sine-triangle modulation, or dwell times in equivalent redundant switching states in the case of space-vector modulation. Simulation and measurement results illustrate that understanding of these relations can lead to a more efficient and flexible three-level modulator with desired or optimal performance.
229 citations
30 Sep 2001
TL;DR: In this paper, the authors proposed a vector classification technique to determine sectors and durations associated with SVM in multi-level inverters, which is applicable to any number of levels.
Abstract: Space vector modulation (SVM) is commonly in digital implementations of three phase PWM modulators This paper proposes a general approach to determining sectors and durations associated with SVM in multi-level inverters The algorithm is exact, fast, and applicable to any number of levels It is based on a vector classification technique, which allows determination of the switching sequences and the calculation the switching instants in m-level inverters The proposed technique reduces software complexity, decreases the computation time, and increases the accuracy of the positioning of the switching instants, when compared with the conventional implementation of the SVM in multi-level converters Results are given for a 3-level inverter
29 citations