Abstract
The stator current control loop plays an important role in ensuring the quality of electric drives interm of producing fast and adequate required torque. When the current controller provides ideal responses, speed control design subsequently is in charge of improving the system performances. Classical PID control is commonly used in current loop design, this paper presents the comparative analysis of current stator controller using proportional integral control and predictive current control (PCC) in field-oriented control-based induction motor drives, with rigidly coupled loads. The experimental results show system responses with PID and PCC. Informative experiment-based analysis provides primary guidance in selection between the two controls.
Highlights
Due to the importance of electrical drive system in modern industrial applications, numerous studies have been conducted on the structure of the system
One of the most common frequency control methods for the induction motor drive proposed is scalar control, which is considered as inadequate in high quality motion applications [1]
This paper presents the design, analysis and comparison of the stator currents responses, by using PI controller (PI-field-oriented control (FOC)) and predictive current control (PCC-FOC)
Summary
Due to the importance of electrical drive system in modern industrial applications, numerous studies have been conducted on the structure of the system. 4. EVALUATION OF PREDICTIVE CURRENT CONTROLLER (PCC) IN FOC STRUCTURE The model predictive control structure for FOC is based on a flux rotor calculation of the IM fed by a two-level voltage source inverter. According to (6), (7) flux is calculated through the measured i value of the stator current and speed motor and flux rotor from in the previous step.
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