Influence of magnets magnetization direction on the performance of high-speed permanent magnet synchronous starter-generator for micro-gas turbine
-
Haiyang Zhao
,
Hongbo Qiu
Abstract
High-speed surface-mounted permanent magnet synchronous machine is often used in micro gas turbine generation system due to its high rotor strength and high efficiency. The electrical machine in this kind of generation system needs to integrate two functions of starter and generator. Therefore, its comprehensive performance, including starting performance and generating performance, has become a comprehensive standard to measure machine performance. In this paper, a 40 kW, 20,000 r/min high-speed machine is taken as an example, the influence of magnets magnetization direction on the machine comprehensive performance is studied. The machine models with different magnets magnetization directions are established by using finite element method and the correctness of the models is verified by comparing the experimental data with the finite element calculation data. On this basis, the influence of different magnetization directions on the performance of the machine, such as generation loss, torque ripple, output voltage, start-up time and maximum starting ability, is analyzed. Furthermore, based on the Fourier decomposition of air gap flux density and the decoupling analysis of starting torque, the influence mechanism of magnetization direction on the performance of the machine is revealed. The presented results provide a reference for the selection of a suitable magnetization direction for high-speed surface-mounted permanent magnet machines.
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 51507156
Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: This article was supported by National Natural Science Foundation of China under grant 51507156.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Articles in the same Issue
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- Frequency regulation of a weakly connected microgrid using the fuzzy-PID controller
- Assessment method of comprehensive energy saving potential of distribution network considering source-load power uncertainty
- Application of partial eigenvalue assignment techniques to dampen electromechanical oscillations in multi-machine power systems
- Influence of magnets magnetization direction on the performance of high-speed permanent magnet synchronous starter-generator for micro-gas turbine
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Articles in the same Issue
- Research Articles
- Smart branch and droop controller based power quality improvement in microgrids
- Daily peak-based short-term demand prediction using backpropagation combined to chi-squared distribution
- Frequency regulation of a weakly connected microgrid using the fuzzy-PID controller
- Assessment method of comprehensive energy saving potential of distribution network considering source-load power uncertainty
- Application of partial eigenvalue assignment techniques to dampen electromechanical oscillations in multi-machine power systems
- Influence of magnets magnetization direction on the performance of high-speed permanent magnet synchronous starter-generator for micro-gas turbine
- Development and scaled-up simulation of an automated electrical energy management system for passageway illumination
