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    Öğe
    Position control of induction motor a new-bounded fuzzy sliding mode controller
    (Emerald Group Publishing Limited, 2005) Senol, I; Demirtas, M; Rustemov, S; Gumus, B
    Purpose - The aims of the paper are to improve the dynamic response of an induction motor based position servo system and to remove the chattering problem in the sliding mode control theory by using fuzzy logic principles. The obtained results are also compared with conventional sliding mode controller to show its performance. Design/methodology/approach - The main method used for the research is to form a thin boundary layer neighboring the switching surface by using fuzzy logic. The sliding mode control law is inherently discontinuous naturally. Therefore, there are some difficulties such as so many switches occurring between the control bounds, which cannot be carried out by real controllers. Therefore, fuzzy logic is used in the thin boundary layer to determine the control signal current. Thus, the chattering is eliminated. Findings - The results show that the designed controller has superior performance. But, there are also some difficulties. It is difficult to obtain fuzzy rules. The rules can be obtained by using genetic algorithms without expert's knowledge. However, sliding surface slope C can be optimized to increase system's dynamic performance. Originality/value - A new boundary layer consisting of the fuzzy rules in the sliding mode control is formed.
  • [ X ]
    Öğe
    The transient and steady state performance of single-phase induction motor with two capacitors fed by matrix converter
    (Mcb Univ Press Ltd, 1998) Ozdemir, M; Sunter, S; Gumus, B
    In this study, a single-phase induction motor with constant v/f, fed by matrix converter, is considered under various frequencies. The modeling of the motor, mechanical load for single-phase induction motor and matrix converter have been obtained by using Simulink package program. The performance of the motor under various frequencies is determined. A single-phase induction motor considered in this work has a running capacitor. The analysis and simulation results are presented.