Energy-Efficient Direct Instantaneous Torque Control of Switched Reluctance Generator at Low Speeds
An efficient switching method is proposed for Direct Instantaneous Torque Control (DITC) in Switched Reluctance Generators (SRG) operating at low speeds, aiming to enhance system efficiency and reduce torque ripple. In the traditional DITC strategy, the magnetization state in the outgoing phase is e...
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| Language: | English |
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IEEE
2025-01-01
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| Series: | IEEE Open Access Journal of Power and Energy |
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| Online Access: | https://ieeexplore.ieee.org/document/10935298/ |
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| author | Elmer O. Hancco Catata Marcelo Vinicius De Paula Ernesto Ruppert Filho Tarcio Andre Dos Santos Barros |
| author_facet | Elmer O. Hancco Catata Marcelo Vinicius De Paula Ernesto Ruppert Filho Tarcio Andre Dos Santos Barros |
| author_sort | Elmer O. Hancco Catata |
| collection | DOAJ |
| description | An efficient switching method is proposed for Direct Instantaneous Torque Control (DITC) in Switched Reluctance Generators (SRG) operating at low speeds, aiming to enhance system efficiency and reduce torque ripple. In the traditional DITC strategy, the magnetization state in the outgoing phase is enabled at low operating speeds, leading to decreased efficiency and unnecessary torque ripple. The proposed DITC strategy improves efficiency at low speeds while maintaining low torque ripple levels. It prioritizes the freewheeling and demagnetization states during the outgoing period. When the back electromotive force (back EMF) is small, the magnetization state is disabled, using the freewheeling state to smoothly increase torque and the demagnetization state to decrease torque. The magnetization state is reintroduced as the back EMF increases. To implement the modified DITC, an artificial neural network is used to estimate electromagnetic torque. Experimental tests were conducted for both fixed and variable SRG speeds. The proposed method is compared with other methods in the literature. Experimental tests carried out at fixed and variable SRG speeds show that the proposed method significantly enhances efficiency by up to 20% and reduces torque ripple by up to 21% compared to existing methods. |
| format | Article |
| id | doaj-art-5cbf7ef8c19249678088f78f0781f5e2 |
| institution | DOAJ |
| issn | 2687-7910 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Access Journal of Power and Energy |
| spelling | doaj-art-5cbf7ef8c19249678088f78f0781f5e22025-08-20T02:53:40ZengIEEEIEEE Open Access Journal of Power and Energy2687-79102025-01-011217118010.1109/OAJPE.2025.355340810935298Energy-Efficient Direct Instantaneous Torque Control of Switched Reluctance Generator at Low SpeedsElmer O. Hancco Catata0https://orcid.org/0000-0003-1702-5143Marcelo Vinicius De Paula1https://orcid.org/0000-0002-2213-6086Ernesto Ruppert Filho2Tarcio Andre Dos Santos Barros3https://orcid.org/0000-0001-9413-1279Electrical Engineering Department, Federal University of Acre, Rio Branco, BrazilFaculty of Mechanical Engineering, University of Campinas, Campinas, BrazilFaculty of Electrical and Computer Engineering, University of Campinas, Campinas, BrazilFaculty of Electrical and Computer Engineering, University of Campinas, Campinas, BrazilAn efficient switching method is proposed for Direct Instantaneous Torque Control (DITC) in Switched Reluctance Generators (SRG) operating at low speeds, aiming to enhance system efficiency and reduce torque ripple. In the traditional DITC strategy, the magnetization state in the outgoing phase is enabled at low operating speeds, leading to decreased efficiency and unnecessary torque ripple. The proposed DITC strategy improves efficiency at low speeds while maintaining low torque ripple levels. It prioritizes the freewheeling and demagnetization states during the outgoing period. When the back electromotive force (back EMF) is small, the magnetization state is disabled, using the freewheeling state to smoothly increase torque and the demagnetization state to decrease torque. The magnetization state is reintroduced as the back EMF increases. To implement the modified DITC, an artificial neural network is used to estimate electromagnetic torque. Experimental tests were conducted for both fixed and variable SRG speeds. The proposed method is compared with other methods in the literature. Experimental tests carried out at fixed and variable SRG speeds show that the proposed method significantly enhances efficiency by up to 20% and reduces torque ripple by up to 21% compared to existing methods.https://ieeexplore.ieee.org/document/10935298/Switched reluctance generatordirect instantaneous torque controlartificial neural networktorque estimation |
| spellingShingle | Elmer O. Hancco Catata Marcelo Vinicius De Paula Ernesto Ruppert Filho Tarcio Andre Dos Santos Barros Energy-Efficient Direct Instantaneous Torque Control of Switched Reluctance Generator at Low Speeds IEEE Open Access Journal of Power and Energy Switched reluctance generator direct instantaneous torque control artificial neural network torque estimation |
| title | Energy-Efficient Direct Instantaneous Torque Control of Switched Reluctance Generator at Low Speeds |
| title_full | Energy-Efficient Direct Instantaneous Torque Control of Switched Reluctance Generator at Low Speeds |
| title_fullStr | Energy-Efficient Direct Instantaneous Torque Control of Switched Reluctance Generator at Low Speeds |
| title_full_unstemmed | Energy-Efficient Direct Instantaneous Torque Control of Switched Reluctance Generator at Low Speeds |
| title_short | Energy-Efficient Direct Instantaneous Torque Control of Switched Reluctance Generator at Low Speeds |
| title_sort | energy efficient direct instantaneous torque control of switched reluctance generator at low speeds |
| topic | Switched reluctance generator direct instantaneous torque control artificial neural network torque estimation |
| url | https://ieeexplore.ieee.org/document/10935298/ |
| work_keys_str_mv | AT elmerohanccocatata energyefficientdirectinstantaneoustorquecontrolofswitchedreluctancegeneratoratlowspeeds AT marceloviniciusdepaula energyefficientdirectinstantaneoustorquecontrolofswitchedreluctancegeneratoratlowspeeds AT ernestoruppertfilho energyefficientdirectinstantaneoustorquecontrolofswitchedreluctancegeneratoratlowspeeds AT tarcioandredossantosbarros energyefficientdirectinstantaneoustorquecontrolofswitchedreluctancegeneratoratlowspeeds |