Experimental study on excitation phenomena of renewable energy source driven induction generator for isolated rural community loads
Induction machines (IMs) are one of the most popular electric machines due to their many advantages. It is well known that the IM can be utilized as a motor and generator at below and above synchronous speeds, respectively. However, an induction generator (IG) in the off-grid mode is not a self-star...
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Elsevier
2024-03-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123024000148 |
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| author | V.B Murali Krishna SSSR Sarathbabu Duvvuri Polamraju V.S. Sobhan Kishore Yadlapati V. Sandeep B.K. Narendra |
| author_facet | V.B Murali Krishna SSSR Sarathbabu Duvvuri Polamraju V.S. Sobhan Kishore Yadlapati V. Sandeep B.K. Narendra |
| author_sort | V.B Murali Krishna |
| collection | DOAJ |
| description | Induction machines (IMs) are one of the most popular electric machines due to their many advantages. It is well known that the IM can be utilized as a motor and generator at below and above synchronous speeds, respectively. However, an induction generator (IG) in the off-grid mode is not a self-started generator. A proper rating of the reactive power supply to the core of the generator and maintaining the rotor speed above the synchronous speed are key challenges in the off-grid mode for exciting the IG to generate the voltage and frequency at desired values. The voltage and frequency are dependent on the amount of reactive power supplied to the stator of the generator and the rotor speed. Since these two factors play a significant role, a key finding is presented in this paper by conducting various experiments on a three-phase IM and investigate the allowable upper and lower limits to avoid over and under-excitation issues during the self-excitation process. Additionally, different methods for the calculation of the required reactive power have been studied in this paper to identify the best method. The proposed study is advantageous for making effective use of IM as an IG for isolated rural applications. |
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| format | Article |
| id | doaj.art-9f4f0d496f9f43a39ffdf52238091b2d |
| institution | Directory Open Access Journal |
| issn | 2590-1230 |
| language | English |
| last_indexed | 2024-04-24T20:03:43Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj.art-9f4f0d496f9f43a39ffdf52238091b2d2024-03-24T07:00:34ZengElsevierResults in Engineering2590-12302024-03-0121101761Experimental study on excitation phenomena of renewable energy source driven induction generator for isolated rural community loadsV.B Murali Krishna0SSSR Sarathbabu Duvvuri1Polamraju V.S. Sobhan2Kishore Yadlapati3V. Sandeep4B.K. Narendra5Department of Electrical Engineering, National Institute of Technology Andhra Pradesh, Tadepalligudem, Andhra Pradesh, 534 101, India; Corresponding author.Department of Electrical and Electronics Engineering, Shri Vishnu Engineering College for Women (Autonomous), Bhimavaram, Andhra Pradesh, 534 202, IndiaDepartment of Electrical and Electronics Engineering, Vignan's Foundations for Science, Technology and Research, Vadlamudi, Andhra Pradesh, 522 213, IndiaDepartment of Electrical and Electronics Engineering, JNTUK University College of Engineering Narasaraopeta, Andhra Pradesh, 522 616, IndiaDepartment of Electrical Engineering, National Institute of Technology Andhra Pradesh, Tadepalligudem, Andhra Pradesh, 534 101, IndiaDepartment of Electrical Engineering, National Institute of Technology Andhra Pradesh, Tadepalligudem, Andhra Pradesh, 534 101, IndiaInduction machines (IMs) are one of the most popular electric machines due to their many advantages. It is well known that the IM can be utilized as a motor and generator at below and above synchronous speeds, respectively. However, an induction generator (IG) in the off-grid mode is not a self-started generator. A proper rating of the reactive power supply to the core of the generator and maintaining the rotor speed above the synchronous speed are key challenges in the off-grid mode for exciting the IG to generate the voltage and frequency at desired values. The voltage and frequency are dependent on the amount of reactive power supplied to the stator of the generator and the rotor speed. Since these two factors play a significant role, a key finding is presented in this paper by conducting various experiments on a three-phase IM and investigate the allowable upper and lower limits to avoid over and under-excitation issues during the self-excitation process. Additionally, different methods for the calculation of the required reactive power have been studied in this paper to identify the best method. The proposed study is advantageous for making effective use of IM as an IG for isolated rural applications.http://www.sciencedirect.com/science/article/pii/S2590123024000148Induction generator (IG)Reactive power (VAR/Var)Excitation capacitanceSynchronous speedSelf excited induction generator (SEIG) |
| spellingShingle | V.B Murali Krishna SSSR Sarathbabu Duvvuri Polamraju V.S. Sobhan Kishore Yadlapati V. Sandeep B.K. Narendra Experimental study on excitation phenomena of renewable energy source driven induction generator for isolated rural community loads Results in Engineering Induction generator (IG) Reactive power (VAR/Var) Excitation capacitance Synchronous speed Self excited induction generator (SEIG) |
| title | Experimental study on excitation phenomena of renewable energy source driven induction generator for isolated rural community loads |
| title_full | Experimental study on excitation phenomena of renewable energy source driven induction generator for isolated rural community loads |
| title_fullStr | Experimental study on excitation phenomena of renewable energy source driven induction generator for isolated rural community loads |
| title_full_unstemmed | Experimental study on excitation phenomena of renewable energy source driven induction generator for isolated rural community loads |
| title_short | Experimental study on excitation phenomena of renewable energy source driven induction generator for isolated rural community loads |
| title_sort | experimental study on excitation phenomena of renewable energy source driven induction generator for isolated rural community loads |
| topic | Induction generator (IG) Reactive power (VAR/Var) Excitation capacitance Synchronous speed Self excited induction generator (SEIG) |
| url | http://www.sciencedirect.com/science/article/pii/S2590123024000148 |
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