Open-Phase Fault Tolerance Techniques of Five-Phase Dual-Rotor Permanent Magnet Synchronous Motor

Zhao, Jing; Gao, Xu; Li, Bin; Liu, Xiangdong; Guan, Xing

doi:10.3390/en81112342

Cited by 17 publications

(15 citation statements)

References 31 publications

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“…The permanent magnet synchronous motor (PMSM) is an attractive candidate for electric vehicles due to its advantage of high power density [22]. A 75-kW PMSM for an electric vehicle is used in this paper, and its parameters are shown in Table 2 [23].…”

Section: Simulation and Analysismentioning

confidence: 99%

A Fast-Acting Diagnostic Algorithm of Insulated Gate Bipolar Transistor Open Circuit Faults for Power Inverters in Electric Vehicles

Zhang

Huang³

et al. 2017

Energies

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Abstract:To improve the diagnostic detection speed in electric vehicles, a novel diagnostic algorithm of insulated gate bipolar transistor (IGBT) open circuit faults for power inverters is proposed in this paper. The average of the difference between the actual three-phase current and referential three-phase current values over one electrical period is used as the diagnostic variable. The normalization method based on the amplitude of the d-q axis referential current is applied to the diagnostic variables to improve the response speed of diagnosis, and to avoid the noise and the delay caused by signal acquisition. In the parameter discretization process, the variable parameter moving average method (VPMAM) is adopted to solve the variation of the average value over a period with the speed of the motor; hence, the diagnostic reliability of the system is improved. This algorithm is robust, independent of load variations, and has a high resistivity against false alarms. Since only the three-phase current of the motor is utilized for calculations in the time domain, a fast diagnostic detection speed can be achieved, which is significantly essential for real-time control in electric vehicles. The effectiveness of the proposed algorithm is verified by both simulation and experimental results.

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Section: Simulation and Analysismentioning

confidence: 99%

A Fast-Acting Diagnostic Algorithm of Insulated Gate Bipolar Transistor Open Circuit Faults for Power Inverters in Electric Vehicles

Zhang

Huang³

et al. 2017

Energies

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show abstract

“…Unbalanced currents lead to torque pulsation and increase losses. Therefore, the power quality and energy efficiency will be reduced [14].…”

Section: Modeling Of Five-phase Pmsm and Matrix Convertermentioning

confidence: 99%

Speed Control of Matrix Converter-Fed Five-Phase Permanent Magnet Synchronous Motors under Unbalanced Voltages

et al. 2017

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Five-phase permanent magnet synchronous motors (PMSM) have special applications in which highly accurate speed and torque control of the motor are a strong requirement. Direct Torque Control (DTC) is a suitable method for the driver structure of these motors. If in this method, instead of using a common five-phase voltage source inverter, a three-phase to five-phase matrix converter is used, the low-frequency current harmonics and the high torque ripple are limited, and an improved input power factor is obtained. Because the input voltages of such converters are directly supplied by input three-phase supply voltages, an imbalance in the voltages will cause problems such as unbalanced stator currents and electromagnetic torque fluctuations. In this paper, a new method is introduced to remove speed and torque oscillator factors. For this purpose, motor torque equations were developed and the oscillation components created by the unbalanced source voltage, determined. Then, using the active and reactive power reference generator, the controller power reference was adjusted in such a way that the electromagnetic torque of the motor did not change. By this means, a number of features including speed, torque, and flux of the motor were improved in terms of the above-mentioned conditions. Simulations were analyzed using Matlab/Simulink software.

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“…They investigated torque ripple in terms of the winding function approach. In [3] and [9], developed an open-circuit fault tolerant control for the five-phase machines by using the I-Power approach theory. They obtained open-circuit faulttolerant control currents by eliminating the components that cause ripple in the I-Power.…”

Section: Introductionmentioning

confidence: 99%

Research on torque ripple under healthy and open-circuit fault-tolerant conditions in a PM multiphase machine

Akay

Lefley

2020

Trans. Electr. Mach. Syst.

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Open-Phase Fault Tolerance Techniques of Five-Phase Dual-Rotor Permanent Magnet Synchronous Motor

Cited by 17 publications

References 31 publications

A Fast-Acting Diagnostic Algorithm of Insulated Gate Bipolar Transistor Open Circuit Faults for Power Inverters in Electric Vehicles

A Fast-Acting Diagnostic Algorithm of Insulated Gate Bipolar Transistor Open Circuit Faults for Power Inverters in Electric Vehicles

Speed Control of Matrix Converter-Fed Five-Phase Permanent Magnet Synchronous Motors under Unbalanced Voltages

Research on torque ripple under healthy and open-circuit fault-tolerant conditions in a PM multiphase machine

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