Discrete-Time Super-Twisting Sliding Mode Current Controller With Fixed Switching Frequency for Switched Reluctance Motors
| العنوان: | Discrete-Time Super-Twisting Sliding Mode Current Controller With Fixed Switching Frequency for Switched Reluctance Motors |
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| المؤلفون: | Rodrigo Padilha Vieira, Filipe Pinarello Scalcon, Ali Emadi, Hilton Abilio Grundling, Gaoliang Fang |
| المصدر: | IEEE Transactions on Power Electronics. 37:3321-3333 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Discrete time and continuous time, Control theory, Computer science, Ripple, Benchmark (computing), Digital control, Electrical and Electronic Engineering, Bang–bang control, Switched reluctance motor, Pulse-width modulation |
| الوصف: | This paper proposes a discrete-time super-twisting sliding mode (DTSTSM) current controller for switched reluctance motors. A novel gain design procedure is proposed, guaranteeing a systematic and straightforward design stage. The method makes use of a cost function, enabling the gains that yield the best trade-off between reference tracking and low current ripple to be determined. The procedure is repeated for different speed values, allowing for a variable gain structure, where the controller gains are adjusted online based on the rotor speed. The proposal presents a simple structure, not requiring knowledge of the machine parameters during implementation, along with a pulse-width modulation (PWM) scheme, ensuring a fixed switching frequency. The DTSTSM controller is obtained from a discrete-time model and stability analysis is developed using a Lyapunov approach, taking into account the one sample implementation delay, present in digital control applications. Experimental results are provided to demonstrate the effectiveness of the proposed approach, where a conventional hysteresis controller is used as a benchmark. Results show the proposal is able to deliver adequate reference tracking while using significantly lower sampling frequencies. Moreover, when compared to the hysteresis controller, superior tracking is observed at low speeds, while maintaining a similar level of computational complexity. |
| تدمد: | 1941-0107 0885-8993 |
| DOI: | 10.1109/tpel.2021.3116096 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::53953ed998ac0b1da91914ccd0e6a63e https://doi.org/10.1109/tpel.2021.3116096 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........53953ed998ac0b1da91914ccd0e6a63e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19410107 08858993 |
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| DOI: | 10.1109/tpel.2021.3116096 |