1. Shi, C., Qiu, J. and Jin, M. (2005) Comparative Study on Direct Torque Control of Permanent Magnet Synchronous Motor. Proceedings of the CSEE, 25, 141-146.
2. Jia, H.P. and He, Y.K. (2006) Sliding Mode Variable Structure Direct Torque Control of Permanent Magnet Synchronous Motor. Transactions of China Electrotechnical Society, 21, 1-6.
3. Design, analysis, and fabrication of a direct drive permanent NdFeB magnet synchronous motor for precision position control
4. A Simple and Practical Duty Cycle Modulated Direct Torque Control for Permanent Magnet Synchronous Motors
5. Xu, Y.P. and Zhong, Y.R. (2009) Direct Torque Control of Permanent Magnet Synchronous Motor Combining Sector Subdivision and Duty Ratio Control. Proceedings of the CSEE, 29, 102-108.