Combined Sliding Mode Control with a Feedback Linearization for Speed Control of Induction Motor

Due to superior robustness characteristic of sliding-mode control techniques, this study proposes a multiple sliding-mode control (MSMC) strategy based on the stator flux oriented vector scheme for speed control of three-phase AC induction motor (IM) drives in the presence of an external disturbance and uncertainties. At first, the dynamic model of a three-phase IM drive is transformed into two-axe orthogonal model (i.e. d and q axes) in the synchronously rotating frame so that vector control can be applied. Then, based on the stator flux oriented scheme (i.e. zero stator flux at q-axis and constant at d-axis), the proposed MSMC causes mechanical angular speed and stator current at q-axis reach toward predefined sliding surfaces. Moreover, stator flux and current at d-axis are respectively indirect and direct controlled such that tracking errors approach toward designed sliding surfaces. The closed-loop stability of the proposed MSMC is proved to possess uniformly ultimately bounded (UUB) performance by Lyapunov stability criteria. Furthermore, the simulation results reveal that the proposed MSMC strategy has a high level of robustness despite addition of an external load and random uncertainties on system parameters. In the meantime, the simulations for comparing the baseline controller (i.e. conventional PI control) are also conducted to verify the superiority of the proposed control scheme.

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Speed control of induction motor with broken bars using sliding mode control (SMC) based to on type-2 fuzzy logic controller (T2FLC)

Advances in Modelling and Analysis C ◽

10.18280/ama_c.730409 ◽

2018 ◽

Vol 73 (4) ◽

pp. 197-201

Author(s):

Djameleddine Djafar ◽

Saad Belhamdi

Keyword(s):

Fuzzy Logic ◽

Sliding Mode Control ◽

Induction Motor ◽

Fuzzy Logic Controller ◽

Sliding Mode ◽

Speed Control ◽

Mode Control

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SIMULATION OF SPEED CONTROL OF INDUCTION MOTOR WHEN SUBJECTED TO NON-LINEAR VARIATIONS IN MOTOR PARAMETERS

International Journal of Power System Operation and Energy Management ◽

10.47893/ijpsoem.2013.1074 ◽

2013 ◽

pp. 127-130

Author(s):

PIYUSH GHUNE ◽

RACHITA NEEMA ◽

VISHWAS KUMAWAT

Keyword(s):

Sliding Mode Control ◽

Induction Motor ◽

Sliding Mode ◽

Control Design ◽

Speed Control ◽

Salient Feature ◽

Mode Control ◽

Control Scheme ◽

Wide Range ◽

Robust Control Design

Today induction motor requires a variable speed control to serve wide range of applications. The objective of this work is to control the position of a field oriented induction motor for a given reference input signal. This work addresses the design of a speed control scheme based on total sliding-mode control (TSMC) theory for a field-orientated induction motor (IM). The total sliding mode control comprises an equivalent control design and a robust control design. In this work the control strategy is derived in the sense of Lyapunov stability theorem such that the stable tracking performance can be ensured under the occurrence of system uncertainties. The salient feature of this control scheme is that the controlled system has a total sliding motion without a reaching phase. The work is been accomplished using Matlab/Simulink. In this work a comparison is been done for a fixed torque & change in torque (Change in motor parameter).

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