PULSE WIDTH MODULATION TECHNIQUE FOR THE SPEED CONTROL OF M-PHASE AC MOTORS
Thyristors are now widely used in many power electronics and motor driven applications and all the known methods of control are nothing but variations of either the phase angle firing control (PFC) or the pulse width modulation control (PWM). Each of these methods has its own benefits and disadvant...
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| Format: | Article |
| Language: | English |
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Alma Mater Publishing House "Vasile Alecsandri" University of Bacau
2019-03-01
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| Series: | Journal of Engineering Studies and Research |
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| Online Access: | https://jesr.ub.ro/index.php/1/article/view/42 |
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| author | EGWAILE JOEL OSARUMWENSE ORIAHI MATTHEW |
| author_facet | EGWAILE JOEL OSARUMWENSE ORIAHI MATTHEW |
| author_sort | EGWAILE JOEL OSARUMWENSE |
| collection | DOAJ |
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Thyristors are now widely used in many power electronics and motor driven applications and all the known methods of control are nothing but variations of either the phase angle firing control (PFC) or the pulse width modulation control (PWM). Each of these methods has its own benefits and disadvantages, but the pulse width modulation control method is, perhaps, by far, the most effective and costly method. Since PWM differs from phase firing control (PFC) in that the control action of PWM takes place only during the time of the firing pulse, this research seeks to develop a combination firing package that maximizes the benefits of the two methods. At first a thyristor is configured as a PNP-type power transistor latch with two ordinary NPN bipolar switching transistors. The power transistor is switched on by zero crossover firing and then switched off by phase angle delay firing. The performance of the model was evaluated and the dynamic characteristics of the motor, such as speed, current, voltage and the total harmonic distortion were carried via simulation. The results shows that by using the Modified PWM firing technique the speed of an m-phase induction motor can be controlled more effectively and reliably. The circuit is easy to implement and cost effective and may be patented and made available for commercial use.
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| format | Article |
| id | doaj-art-4409a1cbf6924a23a25ded2147a39f43 |
| institution | Kabale University |
| issn | 2068-7559 2344-4932 |
| language | English |
| publishDate | 2019-03-01 |
| publisher | Alma Mater Publishing House "Vasile Alecsandri" University of Bacau |
| record_format | Article |
| series | Journal of Engineering Studies and Research |
| spelling | doaj-art-4409a1cbf6924a23a25ded2147a39f432025-02-09T11:37:49ZengAlma Mater Publishing House "Vasile Alecsandri" University of BacauJournal of Engineering Studies and Research2068-75592344-49322019-03-01251PULSE WIDTH MODULATION TECHNIQUE FOR THE SPEED CONTROL OF M-PHASE AC MOTORSEGWAILE JOEL OSARUMWENSE0ORIAHI MATTHEW1Department of Electrical/Electronic Engineering, Faculty of Engineering, University of Benin, PMB 1154, Benin City, Edo State, NigeriaDepartment of Electrical/Electronic Engineering, Faculty of Engineering, University of Benin, PMB 1154, Benin City, Edo State, Nigeria Thyristors are now widely used in many power electronics and motor driven applications and all the known methods of control are nothing but variations of either the phase angle firing control (PFC) or the pulse width modulation control (PWM). Each of these methods has its own benefits and disadvantages, but the pulse width modulation control method is, perhaps, by far, the most effective and costly method. Since PWM differs from phase firing control (PFC) in that the control action of PWM takes place only during the time of the firing pulse, this research seeks to develop a combination firing package that maximizes the benefits of the two methods. At first a thyristor is configured as a PNP-type power transistor latch with two ordinary NPN bipolar switching transistors. The power transistor is switched on by zero crossover firing and then switched off by phase angle delay firing. The performance of the model was evaluated and the dynamic characteristics of the motor, such as speed, current, voltage and the total harmonic distortion were carried via simulation. The results shows that by using the Modified PWM firing technique the speed of an m-phase induction motor can be controlled more effectively and reliably. The circuit is easy to implement and cost effective and may be patented and made available for commercial use. https://jesr.ub.ro/index.php/1/article/view/42Pulse Width ModulationPhase angle delayBipolar switching |
| spellingShingle | EGWAILE JOEL OSARUMWENSE ORIAHI MATTHEW PULSE WIDTH MODULATION TECHNIQUE FOR THE SPEED CONTROL OF M-PHASE AC MOTORS Journal of Engineering Studies and Research Pulse Width Modulation Phase angle delay Bipolar switching |
| title | PULSE WIDTH MODULATION TECHNIQUE FOR THE SPEED CONTROL OF M-PHASE AC MOTORS |
| title_full | PULSE WIDTH MODULATION TECHNIQUE FOR THE SPEED CONTROL OF M-PHASE AC MOTORS |
| title_fullStr | PULSE WIDTH MODULATION TECHNIQUE FOR THE SPEED CONTROL OF M-PHASE AC MOTORS |
| title_full_unstemmed | PULSE WIDTH MODULATION TECHNIQUE FOR THE SPEED CONTROL OF M-PHASE AC MOTORS |
| title_short | PULSE WIDTH MODULATION TECHNIQUE FOR THE SPEED CONTROL OF M-PHASE AC MOTORS |
| title_sort | pulse width modulation technique for the speed control of m phase ac motors |
| topic | Pulse Width Modulation Phase angle delay Bipolar switching |
| url | https://jesr.ub.ro/index.php/1/article/view/42 |
| work_keys_str_mv | AT egwailejoelosarumwense pulsewidthmodulationtechniqueforthespeedcontrolofmphaseacmotors AT oriahimatthew pulsewidthmodulationtechniqueforthespeedcontrolofmphaseacmotors |