Analytical prediction of inter-turn short-circuit current in fault-tolerant permanent magnet brushless machines

2008 ◽  
Author(s):  
J. Chai ◽  
J. Wang ◽  
Z. Sun ◽  
D. Howe
Keyword(s):  
Permanent Magnet ◽  
Fault Tolerant ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Analytical Prediction

scholarly journals Fault-Tolerant Control of Coil Inter-Turn Short-Circuit in Five-Phase Permanent Magnet Synchronous Motor

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5669
Author(s):  
Dingyu Wang ◽  
Yiguang Chen
Keyword(s):  
Permanent Magnet ◽  
Fault Tolerant ◽  
Short Circuit ◽  
Permanent Magnet Synchronous Motor ◽  
Harmonic Component ◽  
Short Circuit Current ◽  
Torque Ripple ◽  
Synchronous Motor ◽  
Even Order ◽  
Gain Compensation

In the five-phase permanent magnet synchronous motor (PMSM) control system, the torque ripple caused by coil inter-turn short-circuit (ITSC)fault will make the motor performance worse. Due to the existence of the short-circuit current in the faulty phase and the third harmonic component in the permanent magnet flux linkage, the electromagnetic torque will contain even-order ripple components when the faulty phase is removed. Torque ripple also cause speed ripple. In this paper, the repetitive controller (RC) is used to perform proportional gain compensation for speed ripple. By designing the RC and connecting RC and proportional integral (PI) controller in parallel for the speed loop, the torque ripple amplitude can be reduced. It can be seen from the simulation and experimental results that the torque ripple suppression strategy based on RC can effectively suppress the torque ripple under ITSC fault.

Analysis, Design and Prototyping of a Low-Speed High-Torque Six-Phase Fault-Tolerant Permanent Magnet Synchronous Machine for EVs

2013 ◽  
Vol 416-417 ◽  
pp. 66-72
Author(s):  
Ping Zheng ◽  
Fan Wu ◽  
Yi Sui ◽  
Peng Fei Wang ◽  
Bin Yu
Keyword(s):  
Permanent Magnet ◽  
Fault Tolerant ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Synchronous Machine ◽  
Permanent Magnet Synchronous Machine ◽  
Low Speed ◽  
Analysis Design ◽  
High Torque ◽  
The One

This paper deals with a low-speed high-torque six-phase fault-tolerant permanent magnet synchronous machine (PMSM) for wheel-driving electric vehicle (EV) applications. In machine design, winding arrangements and feasible slot/pole combinations are discussed and compared; a 24-slot/22-pole alternate-teeth-wound scheme is analyzed and designed. With reinforced slot-leakage component, the inductance of the machine is increased to restrain the one-phase short-circuit current to nearly 1.0 per unit preventing the machine from deteriorations in condition of that fault. The 24-slot/22-pole alternate-teeth-wound prototype machine is manufactured and the experimental verification is provided.

scholarly journals Impact of Slot/Pole Combination on Inter-Turn Short-Circuit Current in Fault-Tolerant Permanent Magnet Machines

2016 ◽  
Vol 52 (4) ◽  
pp. 1-9 ◽  
Author(s):  
Jiri Dusek ◽  
Puvan Arumugam ◽  
Christopher Brunson ◽  
Emmanuel K. Amankwah ◽  
Tahar Hamiti ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Fault Tolerant ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Permanent Magnet Machines

A Novel Multi-Tooth Fault-Tolerant Flux-Switching Machine

2011 ◽  
Vol 383-390 ◽  
pp. 7300-7305
Author(s):  
Yu Wang ◽  
Zhi Quan Deng ◽  
Xiao Lin Wang
Keyword(s):  
Finite Element ◽  
Permanent Magnet ◽  
Fault Tolerant ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Finite Element Analyses ◽  
Flux Linkage ◽  
Tooth Structure ◽  
Torque Density ◽  
Electromagnetic Performance

Fault tolerant flux-switching permanent magnet (FTFSPM) machine is a novel fault tolerant machine having magnet in the stator, which not only has the advantages such as excellent physical, mechanical and magnet insulation abilities, but also overcomes the disadvantages in conventional rotor-PM topology like magnets are subjected to centrifugal force and difficult to dispel heat. However, the ability to inhibit short circuit current of FTFSPM has a great impact on the machine torque (power) density. In this paper, a novel multi-tooth fault-tolerant flux-switching permanent magnet (MTFTFSPM) machine which has big self inductance is proposed. Finite element analyses (FEA) are employed to compare the electromagnetic performance of three types of fault-tolerant topology including flux-linkage, back-EMF, torque density and inductances. The results show that the MTFTFSPM machine can reach higher torque density than traditional FTFSPM due to the multi-tooth structure.

scholarly journals Modeling and Fault Diagnosis of Interturn Short Circuit for Five-Phase Permanent Magnet Synchronous Motor

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Jian-wei Yang ◽  
Man-feng Dou ◽  
Zhi-yong Dai
Keyword(s):  
Parameter Estimation ◽  
Fault Diagnosis ◽  
Permanent Magnet ◽  
Fault Tolerant ◽  
Short Circuit ◽  
Estimation Method ◽  
Trust Region ◽  
Fault Tolerant Control ◽  
Trust Region Algorithm ◽  
Parameter Estimation Method

Taking advantage of the high reliability, multiphase permanent magnet synchronous motors (PMSMs), such as five-phase PMSM and six-phase PMSM, are widely used in fault-tolerant control applications. And one of the important fault-tolerant control problems is fault diagnosis. In most existing literatures, the fault diagnosis problem focuses on the three-phase PMSM. In this paper, compared to the most existing fault diagnosis approaches, a fault diagnosis method for Interturn short circuit (ITSC) fault of five-phase PMSM based on the trust region algorithm is presented. This paper has two contributions. (1) Analyzing the physical parameters of the motor, such as resistances and inductances, a novel mathematic model for ITSC fault of five-phase PMSM is established. (2) Introducing an object function related to the Interturn short circuit ratio, the fault parameters identification problem is reformulated as the extreme seeking problem. A trust region algorithm based parameter estimation method is proposed for tracking the actual Interturn short circuit ratio. The simulation and experimental results have validated the effectiveness of the proposed parameter estimation method.

Sign in / Sign up

Export Citation Format

Share Document