| [1] | Minnett H C. Progress on the 150 inch Anglo-Australian telescope [C]//Proceedings of the Astronomical Society of Australia, 1971(60): 2-6. |
| [2] | Burns M K. Servo simulation and modeling for Gemini 8-m telescopes [C]//Proc of SPIE, 1995, 2479: 217-232. |
| [3] | Erm T, Gutierrez P. Integration and tuning of the VLT drive systems [C]//Proc of SPIE, 2000, 4004: 490-499. |
| [4] | Noguchi T, Tanaka W, Sasaki T, et al. Evaluation of the Subaru telescope control system in-shop test erection [C]//International Society for Optics and Photonics, 1998, 3351: 361-366. |
| [5] | Suárez M, Rosich J, Ortega J, et al. The GTC main axes servos and control system [C]//Proc of SPIE, 2008, 7019: 70190J. |
| [6] | Marchiori G, Busatta A, Ghedin L, et al. The E-ELT Project: the telescope main structure detailed design study [C]//Proc of SPIE, 2012, 8444: 8444O. |
| [7] | Erm T M, Seppey A. A cost effective direct drive option for the Thirty Meter Telescope [C]//Proc of SPIE, 2006, 6273: 627335. |
| [8] | Tang Xu, Wang Xiuhe, Tian Mengmeng, et al. Study of reduction methods of cogging torque in line-start permanent magnet synchronous motor by changing the parameters of stator teeth and slots [J]. Transaction of China Electrotechnical Society , 2016, 31(23): 1-8. (in Chinese) |
| [9] | Shi Songning, Wang Dazhi. Magnet skewing optimization method for reducing cogging torque in permanent magnet drive [J]. Transaction of China Electrotechnical Society , 2015, 30(22): 27-32. (in Chinese) |
| [10] | Hu Xiaofei, Liu Chao, Wang Yi, et al. Analysis and optimization of single phase brushless slotted limited-angle torque motor [J]. Transaction of China Electrotechnical Society, 2019, 34(13): 2744-2751. (in Chinese) |
| [11] | Islam R, Husain I, Fardoun A, et al. Permanent-magnet synchronous motor magnet designs with skewing for torque ripple and cogging torque reduction [J]. IEEE Transactions on Industry Applications, 2009, 45(1): 152-160. doi: 10.1109/TIA.2008.2009653 |
| [12] | Zhang Jian, Wen Xuhui, Li Wenshan, et al. Research on harmonic current suppression strategies of permanent magnet synchronous motor systems based on harmonic observers [C]//Proceedings of the CSEE, 2020, 40(10): 3336-3349. (in Chinese) |
| [13] | Wang Shuo, Kang Jinsong. Harmonic extraction and suppression method of permanent magnet synchronous motor based on adaptive linear neural network [J]. Transaction of China Electrotechnical Society , 2019, 34(4): 654-663. (in Chinese) |
| [14] | Tang Renyuan. Moden Permanent Magnet Machines [M]. Beijng: Machinery Industry Press, 2005. (in Chinese) |
| [15] | Sato Y, Ishizuka T, Nezu K, et al. A new control strategy for voltage-type PWM rectifiers to realize zero steady-state control error in input current [J]. IEEE Transactions on Industry Applications, 1998, 34(3): 480-486. doi: 10.1109/28.673717 |