Identification of optimal SVPWM technique for diode clamped multilevel inverter based induction motor drive
05 Mar 2015-pp 1-6
TL;DR: The conventional SVP WM and the proposed SVPWM techniques are applied to the diode clamped MLI fed induction motor drive and the performance of both the drive schemes are analyzed and compared, to show the effectiveness of the proposed method.
Abstract: Multilevel inverters (MLI) are employed mainly to enhance the performance of the drive scheme which generally demands a quality power source. The modulation technique involved plays a vital role in its improvement. The conventional sine pulse width modulation (SPWM) scheme employed in this regard though suffers from various limitations resulting in drives with lesser efficiency. Hence Space Vector Pulse Width Modulation (SVPWM) techniques are becoming popular in inverter systems due to its advantages in better utilization of input voltage, lesser harmonic content and better output voltage profile, especially from the drive system point of view. The disadvantage being the complex computations involved. This paper envisages to identify the optimal SVPWM technique for diode clamped MLI. The conventional SVPWM and the proposed SVPWM techniques are applied to the diode clamped MLI fed induction motor drive. The performance of both the drive schemes are analyzed and compared, to show the effectiveness of the proposed method. The added advantage of the proposed technique is that it involves lesser computations and has generalization capability.
Citations
More filters
TL;DR: In this article, field orient control of a space vector modulated asymmetrical multilevel inverter (MLI) fed Permanent Magnet Synchronous Motor (PMSM) is presented.
18 citations
01 Feb 2017
TL;DR: This paper envisages to analyze and identify an optimal modulation technique for a reduced switch seven level MLI running an induction motor drive in closed loop through Indirect Field Oriented Control (IFOC).
Abstract: Recent evolution in power electronics and semiconductor switching devices has paved the way for amelioration of various power electronic systems. Hence, various multilevel inverter configurations have been put forward with reduced device count and increased output levels. Pulses with modulated (PWM) adjustable speed drives are employed in various industrial drive applications to achieve superior performance. Among which Sinusoidal PWM (SPWM) and Space Vector PWM (SVPWM) techniques are stands out. Space vector techniques are becoming common in industrial drive applications due to its improved harmonic profile and better DC bus utilization. This paper envisages to analyze and identify an optimal modulation technique for a reduced switch seven level MLI running an induction motor drive in closed loop through Indirect Field Oriented Control (IFOC). The SPWM and the SVPWM techniques are applied to a seven MLI fed induction motor drive. The performance of both systems is analyzed and compared using MATLAB/simulink tool.
4 citations
Cites methods from "Identification of optimal SVPWM tec..."
...The Steps of this algorithm are summarized [18-21] in the flowchart shown in Fig....
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01 Jan 2021
TL;DR: The MCRVMLI is cost-effective and requires less installation area as the number of levels increases, and has improved performance as SATs are implemented in terms of Total Harmonic Distortion (THD) and fundamental output voltage.
Abstract: This paper presents a single-phase Modified Cascaded Reversing Voltage Multilevel Inverter (MCRVMLI) to generate stepped output voltage using various Switching Angle Techniques (SATs) for Photovoltaic (PV) applications. The MCRVMLI consists of two units namely, Level Generating Unit (LGU) and Polarity Changing Unit (PCU) to generate required steps in the output. The suggested MCRVMLI requires only ‘(m − 1)’ power switches, whereas the traditional cascaded MLI and cascaded based multilevel DC-link requires ‘2(m − 1)’ and ‘(m + 3)’ power switches respectively to generate the required number of steps in the output phase voltage. Therefore, the MCRVMLI is cost-effective and requires less installation area as the number of levels increases. MCRVMLI has improved performance as SATs are implemented in terms of Total Harmonic Distortion (THD) and fundamental output voltage. In this paper, equal-phase, half equal-phase and step-pulse-wave SATs are investigated to determine the optimal SAT. The MCRVMLI has been simulated in MATLAB/SIMULINK for 9-level using equal-phase, half-equal-phase and step-pulse-wave SATs to find an optimal SAT and the results are validated with theoretical values. Further, the suggested MCRVMLI with optimized SAT has been simulated for 11-level, 13-level, 15-level and 17-level to obtain THD as per the IEEE-519 standards without filter circuits.
4 citations
01 Feb 2017
TL;DR: This paper investigates and compares the performance of a seven level inverter with conventional SPWM and a new multilevel multiphase SVPWM algorithm, and simulates the model in MATLAB/simulink and a low power prototype of the model is implemented in the laboratory to verify the simulation results.
Abstract: Multilevel inverters (MLI) are employed to enhance the performance of the motor drives, in which the performance improvement is depends on the modulation scheme and the number of power switches and associated components of MLI. Various limitations of conventional sinusoidal pulse width modulation (SPWM) technique result in drives with lesser efficiency. Space Vector Pulse Width Modulation (SVPWM) schemes are now becoming common in inverter systems due to its advantages over other techniques such as better utilization of input voltage and lesser total harmonic distortion especially from the drive system perspective. The disadvantage being the complex computations which increases with the number of voltages levels in MLI. This paper investigates and compares the performance of a seven level inverter with conventional SPWM and a new multilevel multiphase SVPWM algorithm. The model is simulated in MATLAB/simulink and a low power prototype of the model is implemented in the laboratory to verify the simulation results.
4 citations
Cites methods from "Identification of optimal SVPWM tec..."
...The Steps of this algorithm [20-22] are summarized in the flowchart shown in Fig....
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01 Jan 2017
TL;DR: The result draw out a conclusion where the possibility of having a filterless high efficient invert can be achieve.
Abstract: Inverter play important role in power system especially with it capability on reducing
system size and increase efficient. Recent research trend of power electronics system
are focusing on multilevel inverter topic in optimization on voltage output, reduce total
harmonics distortion, modulation technique and switching configuration. Standalone
application multilevel inverter is high focused due to the rise of renewable energy
policy all around the world. Hence, this research emphasis on identify best topology
of multilevel inverter and optimize it among the diode-clamped, capacitor clamped
and cascaded H-bridge multilevel inverter to be used for standalone application in term
of total harmonics distortion and voltage boosting capability. The first part of research
that is identify best topology multilevel inverter is applying sinusoidal pulse width
modulation technique. The result shown cascade H-bridge give the best output in both
total harmonics distortion (9.27%) and fundamental component voltage (240 Vrms).
The research proceed with optimization with fundamental switching frequency method
that is optimized harmonic stepped waveform modulation method. The selective
harmonics elimination calculation have adapt with genetic algorithm and particle
swarm optimization in order to speed up the calculation. Both bio-inspired algorithm
is compared in term of total harmonic distortion and selected harmonics elimination
for both equal and unequal sources. In overall result shown both algorithm have high
accuracy in solving the non-linear equation. However, genetic algorithm shown better
output quality in term of selected harmonics elimination where overall no exceeding
0.4%. Particle swarm optimization shows strength in finding best total harmonics
distortion where in 7-level cascaded H-bridge multilevel inverter (m=0.8) show 6.8%
only as compared to genetic algorithm. Simulation for 3-level, 5-level and 7-level for
each multilevel inverter at different circumferences had been done in this research. The
result draw out a conclusion where the possibility of having a filterless high efficient
invert can be achieve.
3 citations
Cites background from "Identification of optimal SVPWM tec..."
...Lastly, identifying the switching state of the switch, whether is on or off [55, 57]....
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...However the as the capacitor number increase for achieve higher voltage level, the issue of voltage imbalance in DC link occur [6, 7, 52-55]....
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References
More filters
12 Oct 1998
TL;DR: Two novel carrier-based multileVEL PWM schemes are presented which help to optimize or balance the switch utilization in multilevel inverters.
Abstract: The advent of the transformerless multilevel inverter topology has brought forth various pulsewidth modulation (PWM) schemes as a means to control the switching of the active devices in each of the multiple voltage levels in the inverter. An analysis of how existing multilevel carrier-based PWM affects switch utilization for the different levels of a diode-clamped inverter is conducted. Two novel carrier-based multilevel PWM schemes are presented which help to optimize or balance the switch utilization in multilevel inverters. A 10 kW prototype six-level diode-clamped inverter has been built and controlled with the novel PWM strategies proposed in this paper to act as a voltage-source inverter for a motor drive.
492 citations
21 Jun 2010
TL;DR: This paper focuses on the research advances in developing the cascade multilevel inverter topologies and their system configurations for power system applications from reviewing the traditional power conversion technology and the needs to eliminate zigzag transformers required in the traditional technology, to how to configure the cascade multi-level inverters to deal with unbalance and real-power (or active-power) flow.
Abstract: Multilevel converters and inverters have become the enabling power conversion technology for high voltage high power applications in today's power systems and large motor drives. Although the neutral-point clamped (NPC, a 3-level) inverter was invented in 1979, the multilevel concept was not formally established until the early 1990s when the diode-clamped multilevel inverter, the capacitor-clamped (or flying capacitor) multilevel inverter, and the cascade multilevel inverter were proposed and fully studied. In this paper, we will first focus on the research advances in developing the cascade multilevel inverter topologies and their system configurations for power system applications from reviewing the traditional power conversion technology and the needs to eliminate zigzag transformers required in the traditional technology, to how to configure the cascade multilevel inverters to deal with unbalance and real-power (or active-power) flow. These research breakthroughs have made the cascade multilevel inverters a perfect topology for power system applications such as FACTS devices. For example, the cascade multilevel inverter based 75 Mvar and 50 Mvar STATCOMs have been reported. Since the mid of 1990s, many contributors have made great effort in developing more multilevel inverter topologies because all the three multilevel topologies have certain limitations and are not operable in some applications. Then, we will review the generalized multilevel inverter topology, its topological advances to other multilevel inverters/ converters, and their potential applications. This paper also provides insights to how multilevel inverter topologies are related to each other and their pros and cons in practical applications.
261 citations
"Identification of optimal SVPWM tec..." refers background in this paper
...IEEE Catalog Number: ISBN: CFP1533R-POD 978-1-4799-6086-6 2015 IEEE International Conference on Electrical, Computer and Communication Technologies (ICECCT 2015) Coimbatore, India 5-7 March 2015 Pages 1-736 1/2 TABLE OF CONTENTS...
[...]
13 Jun 2013
TL;DR: In this article, the types of multilevel inverter are discussed and the simulation can be done by MATLAB/SIMULINK, in simulation model we can use DC source instead of PV module.
Abstract: PV connected to the single phase grid is discussed in this review. Also the types of multilevel inverter is discussed. Normally the line commutated inverter has square shaped waveform of line current. So it has large amount of harmonic and produces excess of heat which causes damage to the winding of transformer. Multilevel inverter gives the output current waveform which is nearly sinusoidal in nature. This line current has fewer harmonics as compared to line commutated inverter. Basically multilevel inverter produces the output by synthesis of DC voltages i.e. by increasing of DC voltages, the levels of the output increases. Multilevel inverter also used for electric drives applications for same reason i.e. harmonic reduction. The simulation can be done by MATLAB/SIMULINK. In simulation model we can use DC source instead of PV module.
44 citations
01 Dec 2012
TL;DR: This paper presents different type of multilevel inverters along with their advantages and disadvantages, and there is an introduction of new multileVEL inverter strategy named as series parallel switched DC linked multilesvel inverter.
Abstract: This paper presents different type of multilevel inverters along with their advantages and disadvantages Moreover, there is an introduction of new multilevel inverter strategy named as series parallel switched DC linked multilevel inverter This paper also describes a comparison among all multilevel inverter along with their applications
15 citations
"Identification of optimal SVPWM tec..." refers background in this paper
...IEEE Catalog Number: ISBN: CFP1533R-POD 978-1-4799-6086-6 2015 IEEE International Conference on Electrical, Computer and Communication Technologies (ICECCT 2015) Coimbatore, India 5-7 March 2015 Pages 1-736 1/2 TABLE OF CONTENTS...
[...]
01 Nov 2008
TL;DR: In this paper, a multilevel space vector modulation algorithm for three-phase converters with low computational cost has been presented, which can be used with any number of phases; therefore, it can be also used with classical three phase topologies.
Abstract: Multilevel technology achieves high power ratings with voltage limited devices. Recently a new space vector pulse-width modulation algorithm for multilevel multiphase voltage source converters with low computational cost has been presented. This algorithm can be used with any number of phases; therefore, it can be also used with classical three-phase topologies. In this paper, the multiphase algorithm is particularized for three-phase converters and compared with an existing multilevel space vector modulation technique. Finally, the algorithm is implemented in a low cost FPGA and it is tested in laboratory with a real prototype by using a neutral point clamped inverter.
14 citations