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Article

A Current Sensor Fault Tolerant Control Strategy for PMSM Drive Systems Based on Cri Markers

Department of Electrical Machines, Drives and Measurements, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland
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Author to whom correspondence should be addressed.
Academic Editors: Frantisek Durovsky and Pavol Makys
Energies 2021, 14(12), 3443; https://doi.org/10.3390/en14123443
Received: 5 May 2021 / Revised: 4 June 2021 / Accepted: 9 June 2021 / Published: 10 June 2021
(This article belongs to the Special Issue Applications of Modern Methods to Control of Electric Drives)
The paper describes a vector-controlled fault tolerant control (FTC) structure for permanent magnet synchronous motor (PMSM) drives. As a control algorithm, the classical field oriented control was applied. For the proper operation of this drive, minimum two current sensors are necessary, however, in the FTC drives additional redundant transducers are applied. Each measuring sensor, including current sensors, are susceptible to damage and can lead to unstable operation of the drive. The presented control structure, with a diagnostic and compensation system, is robust to the typical current sensor faults—lack of signal, intermittent signal, variable gain, signal noise and signal saturation. The fault detection algorithm is based on the signal method. The fault diagnostic system is tested in two control algorithms—the scalar control and vector control ones—to demonstrate the transient of the faulted signals, detection signals and detection time. After current sensor fault appearance, its influence on the control structure, especially speed transient, is compensated using non-sensitive components. The analysis is presented for all the abovementioned faults for different speed conditions. View Full-Text
Keywords: PMSM; FOC; FTC; current sensor; fault detector PMSM; FOC; FTC; current sensor; fault detector
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MDPI and ACS Style

Jankowska, K.; Dybkowski, M. A Current Sensor Fault Tolerant Control Strategy for PMSM Drive Systems Based on Cri Markers. Energies 2021, 14, 3443. https://doi.org/10.3390/en14123443

AMA Style

Jankowska K, Dybkowski M. A Current Sensor Fault Tolerant Control Strategy for PMSM Drive Systems Based on Cri Markers. Energies. 2021; 14(12):3443. https://doi.org/10.3390/en14123443

Chicago/Turabian Style

Jankowska, Kamila; Dybkowski, Mateusz. 2021. "A Current Sensor Fault Tolerant Control Strategy for PMSM Drive Systems Based on Cri Markers" Energies 14, no. 12: 3443. https://doi.org/10.3390/en14123443

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