| Magnetic Field Analysis of Interior Composite-Rotor Controllable-Flux Permanent Magnet Synchronous Machine |
| |
| 作者姓名： | 陈益广 潘巍 沈勇环 唐任远 |
| |
| 作者单位： | School of Electrical Engineering and Automation Tianjin University，School of Electrical Engineering and Automation Tianjin University，School of Electrical Engineering and Automation Tianjin University，School of Electrical Engineering Shenyang University of Technology，Tianjin 300072 China Tianjin 300072 China Tianjin 300072 China Shenyang 110023，China |
| |
| 基金项目： | Supported by Natural Science Foundation of China(No.50677042). |
| |
| 摘 要： | * A conventional permanent magnet synchronousmachine (PMSM) is built to prevent demagnetizationeven under the extreme operatingconditions in the de-signing phase of rotor magnetic circuit and dimensionof permanent magnets (PMs). The magnet thicknessis large enough to keep the counter magnetic motiveforce (MMF) of armature less than coercive force inhigh temperatures1]. If a conventional PMSMoperates in a wide speedrange, vector control strategy is always adopted. Bycontrollingd-axis dema…
|
| 关 键 词： | 磁场分析 转子 电机 有限元 PMSM |
| 收稿时间： | 2006-02-21 |
Magnetic Field Analysis of Interior Composite-Rotor Controllable-Flux Permanent Magnet Synchronous Machine |
| |
| CHEN Yiguang,PAN Wei,SHEN Yonghuan,TANG Renyuan.Magnetic Field Analysis of Interior Composite-Rotor Controllable-Flux Permanent Magnet Synchronous Machine[J].Transactions of Tianjin University,2006,12(5):330-334. |
| |
| Authors: | CHEN Yiguang PAN Wei SHEN Yonghuan TANG Renyuan |
| |
| Abstract: | Conventional permanent magnet synchronous machine (PMSM) has the problem of large stator copper loss and narrow speed range. To solve this problem, an interior composite-rotor controllable-flux PMSM adaptive to multi-polar is proposed. This machine has the characteristics of low stator copper loss and wide-speed operation. The half-radial-set and half-tangential-set permanent magnets (PMs) are NdFeB that has high remanent flux density and high coercive force. The tangential-set PMs are AlNiCo that has high remanent flux density and low coercive force. By applying the pulse of d-axis stator current i_d, the magnetized intensity and direction of AlNiCo can be controlled. The flux created by NdFeB is repelled to stator and air-gap PM-flux is intensified, or is partially bypassed by AlNiCo in the rotor, so the air-gap PM-flux is weakened. The internal magnetic field distribution in two ultra magnetized situations is analyzed by finite element method. The dimension of PMs and magnetic structure are demonstrated. Especially when the q-axis magnetic resistance is larger and the q-axis inductance is smaller, the result of flux-weakening is better and the influence of armature reaction on air-gap PM-flux is weakened. |
| |
| Keywords: | controllable-flux PMSM memory motor internal composite-rotor finite element analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
