Sensorless DTSMC of a three‐level VSI fed PMSM drive
| Autor: | Yousif Eldigair, Abdul R. Beig, Jamal Y. Alsawalhi |
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| Rok vydání: | 2020 |
| Předmět: |
Total harmonic distortion
Electronic speed control Permanent magnet synchronous motor Computer science 020209 energy 020208 electrical & electronic engineering Bandwidth (signal processing) 02 engineering and technology Sliding mode control Three level Discrete time and continuous time Control theory 0202 electrical engineering electronic engineering information engineering Sampling time Electrical and Electronic Engineering |
| Zdroj: | IET Power Electronics. 13:788-797 |
| ISSN: | 1755-4543 |
| DOI: | 10.1049/iet-pel.2018.5523 |
| Popis: | This study proposes a novel sliding mode control (SMC) structure for a three-level voltage source inverter (VSI). The proposed controller is implemented in discrete time and is applied for the closed-loop speed control of permanent magnet synchronous motor (PMSM) drive powered from a three-level cascaded H-bridge VSI. The proposed discrete time SMC (DTSMC) has the distinct advantages of control over maximum switching frequency and relatively lower total harmonic distortion compared to that of a conventional hysteresis modulation (HM) control. Unlike HM, the proposed DTSMC relates the maximum switching frequency to sampling time, resulting in better utilisation of the bandwidth of the VSI. Additionally, a procedure to combine the DTSMC with a sliding mode observer to achieve sensor-less operation of the PMSM drive is presented. Verification of the proposed DTSMC is conducted using simulation and experimental tests. The simulation and experimental results are presented. |
| Databáze: | OpenAIRE |
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