High performance robust linear controller synthesis for an induction motor using a multi-objective hybrid control strategy

2004 ◽  
Author(s):  
K. Zheng ◽  
A.H. Lee ◽  
J. Bentsman ◽  
P.T. Krein
Keyword(s):  
Induction Motor ◽  
Control Strategy ◽  
High Performance ◽  
Hybrid Control ◽  
Controller Synthesis ◽  
Multi Objective ◽  
Linear Controller

scholarly journals A Novel Vector Control Strategy for a Six-Phase Induction Motor with Low Torque Ripples and Harmonic Currents

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1102 ◽  
Author(s):  
Hamidreza Heidari ◽  
Anton Rassõlkin ◽  
Toomas Vaimann ◽  
Ants Kallaste ◽  
Asghar Taheri ◽  
...  
Keyword(s):  
Vector Control ◽  
Induction Motor ◽  
Control Strategy ◽  
High Performance ◽  
Direct Torque Control ◽  
Low Frequency ◽  
Torque Control ◽  
Harmonic Currents ◽  
Torque Ripples ◽  
Vector Control Strategy

In this paper, a new vector control strategy is proposed to reduce torque ripples and harmonic currents represented in switching table-based direct torque control (ST-DTC) of a six-phase induction motor (6PIM). For this purpose, a new set of inputs is provided for the switching table (ST). These inputs are based on the decoupled current components in the synchronous reference frame. Indeed, using both field-oriented control (FOC) and direct torque control (DTC) concepts, precise inputs are applied to the ST in order to achieve better steady-state torque response. By applying the duty cycle control strategy, the loss subspace components are eliminated through a suitable selection of virtual voltage vectors. Each virtual voltage vector is based on a combination of a large and a medium vector to make the average volt-seconds in loss subspace near to zero. Therefore, the proposed strategy not only notably reduces the torque ripples, but also suppresses the low frequency current harmonics, simultaneously. Simulation and experimental results clarify the high performance of the proposed scheme.

scholarly journals Real-Time High Performance of Induction Motor Drive Using Hybrid Fuzzy-Sliding Mode Controllers

2021 ◽  
Vol 54 (6) ◽  
pp. 903-908
Author(s):  
Amar Bouayad Debbagh ◽  
Mokhtar Bendjebbar ◽  
Mohamed Benslimane ◽  
Mokhtar Zerikat ◽  
Ahmed Allali
Keyword(s):  
Real Time ◽  
Induction Motor ◽  
Control Strategy ◽  
High Performance ◽  
Fuzzy Logic Controller ◽  
Fuzzy Controller ◽  
Sliding Mode ◽  
Complex Structure ◽  
Real Time Control ◽  
Hybrid Controller

Obtaining the required performance, stability, and robustness in real-time control of induction motors usually requires the use of complex controllers, however through multiple experimentations, many challenges have arisen from such methods. The complex structure of control methods in real-time applications is usually computationally challenging and energy consuming, hence the need for a simple control strategy to overcome these challenges, in this paper, we focus on designing an advanced hybrid control strategy with a simple design applied to an induction motor. Mainly, the hybrid controller used in this study has the benefits of joining the best performance of both fuzzy logic controller and sliding mode controller, specifically designed to handle each phase separately, the transition phase and the steady phase. A fuzzy controller intervenes as a supervisor in our control structure, more specifically it manages the switch from one type of control to the other taking into account the intervention phase of each type of controller by commanding the rate of both controllers. Control performance analysis was carried out in a real experimental setup to validate the efficiency and robustness of the proposed hybrid controller and confirm its effectiveness in handling the compromise between overshoot and response time.

Design and Implementation of a Hybrid Control Strategy for an Active Vibration Isolation System

2002 ◽  
Author(s):  
Yisheng Zhang ◽  
Andrew G. Alleyne ◽  
Danian Zheng
Keyword(s):  
Control Strategy ◽  
High Performance ◽  
Vibration Isolation ◽  
Hybrid Control ◽  
Transfer Scheme ◽  
Isolation System ◽  
Plant Variation ◽  
Bumpless Transfer ◽  
Active Vibration ◽  
Active Vibration Isolation

Controller design methodologies based on a single controller are often unable to provide both high performance (i.e., tracking bandwidth) and desired robustness (i.e. retaining stability) in the presence of uncertainty or plant variation. This paper presents a hybrid control strategy to circumvent the basic trade-off between performance and robustness from an individual controller. This hybrid control strategy utilizes a robust controller for guaranteed robustness when the plant model is not well known, and makes an adaptive controller active for high performance after sufficient plant information has been collected on-line. To avoid a degraded transient after controller switching, a bumpless transfer scheme is designed and incorporated into this hybrid control strategy. This bumpless transfer design is a novel extension from a conventional latent tracking bumpless transfer design for a SISO plant with 1 DOF controllers to either a SISO plant with multiple DOF controllers or a MIMO plant. Experimental results implemented on an active vibration isolation testbed demonstrate the effectiveness of the hybrid control strategy including the bumpless transfer design.

Double-Fed Speed Control System for Wound-Rotor Induction Motor Based on SVPWM Control Technology

2012 ◽  
Vol 220-223 ◽  
pp. 469-472
Author(s):  
Mei Hua Zhao ◽  
Yi Ruan ◽  
Xiao Xin Wu
Keyword(s):  
Mathematical Model ◽  
Control System ◽  
Induction Motor ◽  
Control Strategy ◽  
High Performance ◽  
Pwm Converter ◽  
Loop Control ◽  
Grid Side ◽  
Close Loop Control ◽  
The Mathematical Model

A high performance speed-regulating control system with high power factor and small harmonic pollution was realized. Firstly, the mathematical model of the grid side PWM converter was derived, and then voltage, current double close-loop control strategy based on a grid voltage orientation was proposed. Secondly, the mathematical model of wound-rotor induction motor(WRIM) was derived, and then the rotor side PWM converter control strategy based on a stator voltage orientation was designed. Finally, experimental platform for doubly-fed speed-regulating control system was built. Experimental results showed that the control strategy is feasible and efficient.

A Hybrid Adaptive and Robust Control Strategy for a Class of Linear Systems

2003 ◽  
Author(s):  
Yisheng Zhang ◽  
Andrew G. Alleyne
Keyword(s):  
Robust Control ◽  
Linear Systems ◽  
Control Strategy ◽  
High Performance ◽  
Dwell Time ◽  
Hybrid Control ◽  
Adaptive Controller ◽  
Robust Controller ◽  
Plant Model ◽  
System Information

This paper presents a hybrid control strategy to avoid the basic trade-off between performance and robustness for individual controllers. The hybrid control strategy utilizes a robust controller for guaranteed robustness and adequate performance when the plant model is not well known and/or in the presence of significant disturbances, and employs an adaptive controller for high performance after sufficient system information has been collected. Based on traditional dwell-time approaches, a coordinated dwell-time approach is developed and incorporated into the hybrid control strategy, which guarantees the global stability of the hybrid system for a class of linear systems, as well as combine the benefits of robust control and adaptive control.

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