A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Constant Switching Frequency DTC for Matrix Converter Fed Speed Sensorless Induction Motor Drive
Abstract The paper presents a constant switching frequency scheme for speed sensorless Direct Torque Control (DTC) of Matrix Converter fed Induction Motor Drive. The use of matrix converter facilitates improved power quality on input as well as motor side, along with Input Power Factor control, besides eliminating the need for heavy passive elements. Moreover, DTC through Space Vector Modulation helps in achieving a fast control over the torque and flux of the motor, with added benefit of constant switching frequency. A constant switching frequency aids in maintaining desired power quality of AC mains current even at low motor speeds, and simplifies input filter design of the matrix converter, as compared to conventional hysteresis based DTC. Further, stator voltage estimation from sensed input voltage, and subsequent stator (and rotor) flux estimation is done. For speed sensorless operation, a Model Reference Adaptive System is used, which emulates the speed dependent rotor flux equations of the induction motor. The error between conventionally estimated rotor flux (reference model) and the rotor flux estimated through the adaptive observer is processed through PI controller to generate the rotor speed estimate.
Constant Switching Frequency DTC for Matrix Converter Fed Speed Sensorless Induction Motor Drive
Abstract The paper presents a constant switching frequency scheme for speed sensorless Direct Torque Control (DTC) of Matrix Converter fed Induction Motor Drive. The use of matrix converter facilitates improved power quality on input as well as motor side, along with Input Power Factor control, besides eliminating the need for heavy passive elements. Moreover, DTC through Space Vector Modulation helps in achieving a fast control over the torque and flux of the motor, with added benefit of constant switching frequency. A constant switching frequency aids in maintaining desired power quality of AC mains current even at low motor speeds, and simplifies input filter design of the matrix converter, as compared to conventional hysteresis based DTC. Further, stator voltage estimation from sensed input voltage, and subsequent stator (and rotor) flux estimation is done. For speed sensorless operation, a Model Reference Adaptive System is used, which emulates the speed dependent rotor flux equations of the induction motor. The error between conventionally estimated rotor flux (reference model) and the rotor flux estimated through the adaptive observer is processed through PI controller to generate the rotor speed estimate.
Constant Switching Frequency DTC for Matrix Converter Fed Speed Sensorless Induction Motor Drive
Mir, Tabish Nazir (author) / Singh, Bhim (author) / Bhat, Abdul Hamid (author)
Journal of The Institution of Engineers (India): Series B ; 99 ; 527-535
2018-05-17
9 pages
Article (Journal)
Electronic Resource
English
Sensorless control of induction motor drive using extended Kalman filter
| British Library Online Contents | 2011
S4BL Power-Factor-Corrected Converter Powered Sensorless BLDC Motor Ceiling-Fan
| Springer Verlag | 2024
S4BL Power-Factor-Corrected Converter Powered Sensorless BLDC Motor Ceiling-Fan
| Springer Verlag | 2024
Sensorless Detection and Diagnosis Method for Induction Motor and its Driven Equipment
| British Library Online Contents | 2009
Utilizing Data from a Sensorless AC Variable Speed Drive for Detecting Mechanical Misalignments
| British Library Online Contents | 2013