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Proceedings ArticleDOI

Multilevel inverter fed induction motor drive for pumping application

24 Jun 2015-pp 85-92
Abstract: Three phase induction motors are widely used in Industrial drives because of their ruggedness, reliability and simplicity in construction. Accurate control of Induction Machine was always a matter of concern starting from the modulation technique used, to the closed loop control strategy. In this work a complete Induction Motor drive is designed for pumping application with modulation strategy as Sinusoidal pulse width modulation (SPWM) and control scheme as IFOC. The Induction Motor is fed by a cascaded H-Bridge 5 Level MLI and is controlled by Indirect Field Oriented Control (IFOC) technique. In this paper, Multi Carrier PWM technique Alternate Phase Opposition Disposition (APOD) is used to control switching of multilevel inverters. Mathematical model of Pump Load is designed and the performance of the Induction Motor Drive with Pump Load is analyzed using simulation. The affinity law of centrifugal pump is validated using the simulation results obtained.
Citations
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Proceedings ArticleDOI
01 Feb 2017
TL;DR: In this article, the performance of polyphase induction motor using multilevel inverter is compared with PWM inverter using MATLAB/SIMULINK environment. And the results are validated by MATLAB and SIMULINK environments.
Abstract: The polyphase induction motor is the most widely used ac motor because of its numerous advantages like low in cost, simple & rugged construction, absence of commutator and good operation. In the recent past Multilevel inverter technology has emerged as very important alternative in the area of high power, medium voltage control. By using these inverters we can change the frequency levels of induction motor without changing the power input. These inverters are used in induction motor drives to eliminate 3rd, 5th, 7th order harmonics to get the better performance characteristics. In this paper describes the improvent in the performance of induction motor using multi level inverter and also compared the results with PWM inverter. The results are validated by MATLAB /SIMULINK environment.

5 citations

Proceedings ArticleDOI
01 Aug 2019
TL;DR: The simulation results by using Matlab/Simulink show that this new technique is robust; its performances are remarkable and insensitive to parameter variations compared to the drive system with a traditional PI.
Abstract: The main objective of this article is to evaluate the performance of neural hysteresis for five-level DTC control of induction motor based on PI-fuzzy speed controller associated with the genetic algorithm. This command is operated with PWM supply. The simulation results by using Matlab/Simulink show that this new technique is robust; itsperformances are remarkable and insensitive to parameter variations compared to the drive system with a traditional PI.

3 citations


Cites background from "Multilevel inverter fed induction m..."

  • ...A three-phase five-level NPC inverter is composed of eight controlled switches that are unidirectional in voltage and bidirectional in current , and six holding diodes connected all along the continuous bus [12]....

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Journal ArticleDOI
TL;DR: A symmetrical five level and seven levels inverter configuration with simplified pulse width modulation technique is proposed, which requires less switches, less protection circuits along with low cost and size.
Abstract: Penetration of multilevel inverters (MLI) in to high power and medium voltage application has been increasing because of its advantages. The conventional two levels inverter has high harmonic distortion which gives poor power quality. Lot of topologies has been developed to overcome the drawbacks of a two level inverter. These topologies include more number of switching devices which increases the design complexity and cost. The optimum design of inverter requires less number of switches with better quality in waveform. In this paper, a symmetrical five level and seven levels inverter configuration with simplified pulse width modulation technique is proposed. This proposed inverter requires less switches, less protection circuits along with low cost and size. The analysis of the inverter circuits is done by using Matlab/Simulink software. The synthesized staircase wave form is shown and total harmonic distortion (THD) is also measured.

1 citations


Cites background from "Multilevel inverter fed induction m..."

  • ...These inverters are not only used for high power applications, but also used for interfacing the renewable energy sources (RES) [4]-[6] to the utility grid....

    [...]

Proceedings ArticleDOI
01 Dec 2015
TL;DR: In this article, an effort has been made to explore different facets of speed/toque control for coupled induction motors based on traditional scalar (Volt/Hz) and advanced vector (Direct torque) techniques.
Abstract: For industrial sectors involving coupled induction motor drives, control of speed/torque is an utmost critical issue especially in dynamic conditions. Considering this aspect, there is a dire need of a flexible and efficient control which could best fit in the scheme of coupled drive operation. In this paper an effort has been made to explore different facets of speed/toque control for coupled induction motors based on traditional scalar (Volt/Hz) and advanced vector (Direct Torque) techniques. Also in order to facilitate improvements in terms of harmonic contents and power losses, it has been proposed to replace traditional 2-Level Inverter in Induction Motor drive with an advanced Reversing Voltage Multi Level Inverter (MLI) topology providing 5-Levels of output phase voltage. Based on the simulation study for both the control strategies in MATLAB/Simulink, it has been shown that harmonic distortions present in the fundamental output voltage of a coupled drive fed by Multilevel Inverters are comparatively less when compared to its 2-Level counterpart. These reduced distortions are in-turn responsible for toning down filtering requirements at the input of motor, thereby enhancing the efficiency of drive system.
Proceedings ArticleDOI
01 Feb 2017
TL;DR: This paper discusses application of Multilevel Inverter (MLI) in closed loop control of induction motor with proposed topology called Nested topology which helps in reducing harmonics thereby increasing & improving the level and quality of voltages respectively.
Abstract: This paper discusses application of Multilevel Inverter (MLI) in closed loop control of induction motor. This topology of MLI is called Nested topology which helps in reducing harmonics thereby increasing & improving the level and quality of voltages respectively. Proposed topology increases efficiency of output by reducing the losses effectively. The work mainly focuses on Matlab simulation and implementation of the topology mentioned along with its application on induction motor. The switching technique have been successfully implemented. The results on the basis of simulation have been clearly discussed in this paper.
References
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Book
16 Jun 2003
TL;DR: In this paper, the selection of AC converters for variable speed drive applications is discussed. And a glossary of common terms used with AC Drives is provided for a more complete discussion.
Abstract: Introduction to Variable Speed Drives for Industrial Applications 3-Phase AC Induction Motors Power Electronic Converters Electromagnetic Compatibility (EMC) Protection of AC Converters and Motors Control Systems for AC Variable Speed Drives The Selection of AC Converters for Variable Speed Drive Applications Installation and Commissioning of AC Variable Speed Drives Special Topics and New Developments Appendix A: Motor Protection - Direct Temperature Sensing Appendix B: Current Measurement Transducers Appendix C: Speed Measurement Transducers Appendix D: International and National Standards Appendix E: Glossary of Common Terms used with AC Drives Bibliography : Recommended Additional Reading.

77 citations

Proceedings ArticleDOI
14 Dec 2005
TL;DR: In this article, a half-day advanced and state-of-the-art tutorial is designed to give a comprehensive overview and recent advances of power electronics and motor drives with emphasis on industrial applications.
Abstract: The technology of power electronics and motor drives has gone through dynamic evolution in the recent years due to many innovations in power semiconductor devices, converter topologies, analytical and simulation techniques, machines, drives, and control techniques. Artificial intelligence (AI) techniques, such as fuzzy logic, neural networks and genetic algorithms are now extending its frontier and bringing new challenge to power electronic engineers. As the technology is advancing, the applications of power electronics are proliferating in industrial, commercial, residential, aerospace, military, transportation and utility systems. Power electronics is destined to play key role in global industrialization and energy conservation trends of the 21st century. In the environmentally clean renewable energy systems, such as wind, PV and fuel cells, the role of power electronics is significant. Power electronics is helping efficient energy utilization in the ever-increasing energy demand of the world, and thus conserving our dwindling fossil fuel energy reserve and helping environmental pollution control. The importance of power electronics will be similar to information technology that is currently causing revolution in our society. The half-day advanced and state-of-the-art tutorial is designed to give a comprehensive overview and recent advances of power electronics and motor drives with emphasis on industrial applications. Starting with historical evolution, importance and energy saving aspects of the technology, the tutorial will review advances and trends on power semiconductor devices, converter topologies, machine drives and control. The application features in renewable energy systems (wind, PV and fuel cells) will be covered.

19 citations

01 Jan 2008
TL;DR: In this paper, the performance of a permanent magnet synchronous motor (PMSM) and an asynchronous motor (ASM) connected to a photovoltaic (PV) array through an inverter is analyzed.
Abstract: The dynamic performances of a permanent magnet synchronous motor (PMSM) and an asynchronous motor (ASM) connected to a photovoltaic (PV) array through an inverter are analyzed. The mathematical models of PV array, inverter/motor and controller are developed. The photovoltaic array is represented by an equivalent circuit whose parameters are computed using experimentally determined current-voltage (I iV ) characteristics. The necessary computer algorithm is developed to analyze the performance under difierent conditions of the solar illumination for a pump load. The study also examines the efiectiveness of the drive system both for starting and DC link voltage ∞uctuations caused by varying solar illumination. K e y w o r d s: solar energy, optimization, photovoltaic arrays, pumping, modelling, e‐ciency

14 citations

Proceedings ArticleDOI
01 Dec 2012
TL;DR: In this paper, performance evaluation of a five level cascaded multilevel inverter (MLI) using advance pulse width modulation (PWM) techniques for constant switching frequency (CSF) operation is presented.
Abstract: Performance evaluation of a five level cascaded multilevel inverter (MLI) using advance pulse width modulation (PWM) techniques for constant switching frequency (CSF) operation are presented in this paper. Multilevel inverter operation for CFO with Phase disposition (PD), Phase opposition disposition (POD), Alternate phase opposition disposition (APOD) PWM control methods is simulated in MATLAB. Also variations in MLI performance parameters such as Total Harmonic Distortion (THD) in output voltage, peak value of fundamental component of voltage, etc. are analyzed with each PWM control strategy. The effects of load perturbation on the profile of phase, line voltage and current in MLI are also described. A comparative study is presented in terms of THD, peak value of fundamental component of voltage and current under different load conditions.

12 citations