Switching Sequence Model Predictive Direct Torque Control of IPMSMs for EVs in Switch Open-Circuit Fault-Tolerant Mode

Ting Yang, Takahiro Kawaguchi, Seiji Hashimoto and Wei Jiang
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Ting Yang: School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
Takahiro Kawaguchi: School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
Seiji Hashimoto: School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
Wei Jiang: School of Electrical Energy and Power Engineering, YangZhou University, Yangzhou 225127, China

Energies, 2020, vol. 13, issue 21, 1-15

Abstract: A switching sequence model predictive direct torque control (MPDTC) of IPMSMs for EVs in switch open-circuit fault-tolerant mode is studied in this paper. Instead of selecting one space vector from the possible four space vectors, the proposed MPDTC method selects an optimized switching sequence from two well-designed switching sequences, including three space vectors, according to a new designed cost function of which the control objectives have been transferred to the dq -axes components of the stator flux-linkage under the maximum-torque-per-ampere control. The calculation method of the durations of the adopted space vectors in the optimized switching sequence is studied to realize the stator flux-linkage reference tracking. In addition, the capacitor voltage balance method, by injecting a dc offset to the current of fault phase, is given. Compared with the conventional MPDTC method, the complicated weighting factors designing process is avoided and the electromagnetic torque ripples can be greatly suppressed. The experimental results prove the effectiveness and advantages of the proposed scheme.

Keywords: electric vehicle; interior permanent magnet synchronous motors (IPMSMs); model predictive control; fault-tolerant (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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