Modified MRAS Speed Controller for Direct Torque Controlled Sensorless Induction Motor Drives

Hsiu Ping Wang; Yu Feng Chang; Fwu Hsing Liu

doi:10.4028/www.scientific.net/AMM.423-426.2059

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 423-426Modified MRAS Speed Controller for Direct Torque...

Modified MRAS Speed Controller for Direct Torque Controlled Sensorless Induction Motor Drives

Abstract:

This paper presents a Modified model reference adaptive system (MMRAS) speed controller for speed estimation of induction motor using model-reference adaptive scheme (MRAS) approach in a direct torque control system. A good speed controller of induction motor can enhance the speed estimation of sensorless drives. The MMRAS controller can reduce effect of parameter variations and nonlinearities in the induction motor, and approaches to desired performance of referenced model. So, the presented controller can enhance the performance of speed estimation. The availability of the proposed structure scheme is verified by through under computation simulations with MATLAB software. Simulation results are presented in order to prove the availability of the proposed structure scheme.

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Periodical:

Applied Mechanics and Materials (Volumes 423-426)

Pages:

2059-2062

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.423-426.2059

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Online since:

September 2013

Authors:

Hsiu Ping Wang, Yu Feng Chang, Fwu Hsing Liu

Keywords:

Direct Torque Control (DTC), Intuction Motor, Model Reference Adaptive System, Sensorless, Ziegler-Nichols Tuning Formula

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