scholarly journals A New Flux Observer and Simplified ADRC Controllers for SSTEKF Sensorless Vector Control of an Induction Motor

2021 ◽  
Vol 30 (2) ◽  
pp. 133-142
Author(s):  
Haijun CHE ◽  
Ying TIAN ◽  
Jingming YANG ◽  
Zitong ZHAO
Keyword(s):  
Vector Control ◽  
Induction Motor ◽  
Flux Observer ◽  
Sensorless Vector Control

scholarly journals Robust Speed-Sensorless Vector Control of Doubly Fed Induction Motor Drive Using Sliding Mode Rotor Flux Observer

2018 ◽  
Vol 7 (3) ◽  
pp. 235
Author(s):  
Djamila Cherifi ◽  
Yahia Miloud
Keyword(s):  
Vector Control ◽  
Induction Motor ◽  
Sliding Mode ◽  
Motor Speed ◽  
Speed Sensorless ◽  
Flux Observer ◽  
Sensorless Vector Control ◽  
Separate Control ◽  
Rotor Flux ◽  
Doubly Fed

This paper presents a robust observer for sensorless speed control of doubly fed induction motor (DFIM), based on the slidin mode. In the first step, a model of the doubly fed induction motor fed by two PWM inverters with separate DC bus link is developed. In the second step and in order to provide a robust separate control between flux and motor speed a vector control by field oriented strategy applying a sliding mode regulator was implemented. Finally, speed estimation of a doubly fed induction motor based on sliding mode observer is presented. The simulation tests schow the effectiveness of the proposed method especially in the load disturbances, the change of the refrence speed and low speed. Also the influence of parameter variations will be studied by simulation

Cascaded Multilevel Inverter IM Speed-Sensorless Vector Control System Based on MRAS Theory

2013 ◽  
Vol 344 ◽  
pp. 159-163
Author(s):  
Zhen Jun Lin ◽  
Sheng Hua Huang
Keyword(s):  
Vector Control ◽  
Induction Motor ◽  
Low Voltage ◽  
Multilevel Inverter ◽  
Speed Sensorless ◽  
Multilevel Inverters ◽  
Sensorless Vector Control ◽  
Simulation And Experiment ◽  
Vector Control System ◽  
Cascaded Multilevel Inverter

Cascaded multilevel inverters could realize high-voltage output based on a series connection of power cells which use standard low-voltage component configurations. This characteristic could achieve high-quality output voltage waveforms and input current waveforms. These merits are made for motor control, especially in the field of speed-sensorless vector control of induction motor based on the theory of MRAS. This paper constructs a simulation system with the help of MATLB/SIMULINK and a system combined cascaded H-bridge multilevel inverter with induction motor with the help of DSP and FPGA. The simulation and experiment results verified the superiority of cascaded multilevel inverter applied on the MRAS speed-sensorless vector control of induction motor.

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