Sensorless Vector Control of Closed-slot Induction Machines at Low Frequency
نویسندگان
چکیده
منابع مشابه
Sensorless Control of Induction Machines
theoret. zero close to, or temporarily zero Abstract — Controlled induction motor drives without mechanical speed sensors at the motor shaft have the attractions of low cost and high reliability. To replace the sensor, the information on the rotor speed is extracted from measured stator currents and from the voltages at the motor terminals. Vector controlled drives require estimating the magnit...
متن کاملSensorless Control of Induction Motor Drives at Low Speed Using Fuzzy Logic Control
This paper proposes the controlling of Induction motor drives.Because of low maintenance and robustness, induction motors have many applications in industries. Speed control of induction motor is more important to achieve maximum torque and efficiency. Various control techniques such as scalar control, vector control, Sensor-less control are used. These Schemes suffers from parameter sensitivit...
متن کاملLow Speed Sensorless Variable Structure Control of Induction Motor
Torque and speed sensorless induction motor control is presented in this paper. The idea is realized using a sliding mode closed loop rotor flux observer for estimation of electromotive force of machine. This signal is then used in nonlinear stator flux and torque control of induction motor and in rotor flux observer for speed and flux estimation. The analysis of the proposed method is included...
متن کاملA study of Sensorless Control of Induction Motor at Zero Speed Utilizing High Frequency Voltage Injection
A detailed investigation of sensorless control of induction motor at zero and very low speed based on injection of a pulsating high frequency voltage signal is presented. A sensing technique used to measure air gap flux position in a squirrel cage induction motor is based on the secondary effect of magnetic spatial nonlinearity caused by saturation of the stator laminations. The physical insigh...
متن کاملSpeed-Sensorless Vector Torque Control of Induction Machines Using a Two-Time-Scale Approach - Industry Applications, IEEE Transactions on
Conditions for observability of a linearized smoothairgap induction machine model are examined, and limitations of any speed-sensorless observer scheme based on such a model are discussed. An approach for speed-sensorless flux estimation based on singular perturbation theory is developed. This approach relies on the natural time-scale separation between the electrical and mechanical dynamics of...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEJ Journal of Industry Applications
سال: 2013
ISSN: 2187-1094,2187-1108
DOI: 10.1541/ieejjia.2.74