A Non-Linear Technique for MTPA-Based Induction Motor Drive Considering Iron Loss and Saturation Effects

2020 ◽  
Author(s):  
Mohammad-Ali Salahmanesh ◽  
Hossein Abootorabi Zarchi ◽  
Hamidreza Mosaddegh Hesar
Keyword(s):  
Induction Motor ◽  
Iron Loss ◽  
Motor Drive ◽  
Induction Motor Drive ◽  
Non Linear ◽  
Saturation Effects ◽  
Linear Technique

Controller Design for Vector Controlled AC Induction Motor Drive Using State-Space Design Methodologies

2014 ◽  
Vol 903 ◽  
pp. 233-238
Author(s):  
Tarmizi Ahmad Izzuddin ◽  
Zamani Md Sani ◽  
Fauzal Naim Zohedi
Keyword(s):  
State Space ◽  
Induction Motor ◽  
Linear Model ◽  
Controller Design ◽  
Motor Drive ◽  
Modern State ◽  
Induction Motor Drive ◽  
Space Design ◽  
Non Linear ◽  
Ac Induction Motor

Recently, Vector Control also known as Field Oriented Control used in AC induction motor drive provides us of a way to control AC induction motor similar to that of a DC motor. This objective is achieved by transforming the time-varying, difficult to control stator currents into a simple time-invariant system by means of coordinate transformations. This in turn provides us with a systematical way towards designing a controller using classical control or modern state-space design methodologies. Purpose of this research is to use the latter in designing a controller towards regulating current responsible for torque response. A non-linear model of the AC Induction Motor is modeled in the rotating (d,q) reference frame for the control purposes. Then, a state feedback linearization controller was design based on the idea of “exact linearization” to transform the non-linear model into linear state-space model, thus enabling controller design using modern state-space approach. A Linear Quadratic optimal controller and Feedback+Feedforward controller is then designed and applied to the linearized induction motor model. For comparison purposes a classical P/PI controller was also designed. Simulation is then carried out using MATLAB/SIMULINK software and results shows good current regulation by controller design using modern state –space methodologies.

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