Dinh Truc, Pham, and Hoang Dang Khoa. “SENSORLESS SPEED ESTIMATION OF INDUCTION MOTOR IN A DIRECT TORQUE CONTROL SYSTEM”. Science and Technology Development Journal 9, no. 12 (December 15, 2006): 33-40. Accessed December 22, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/3129.