This paper presents an advanced control strategy for a doubly fed induction generator direct current system. The proposed method employs a rotor-current-based model predictive control (MPC) scheme that operates without stator voltage and current sensors. Through the integration of MPC with the rotor current vector, optimal inverter switching states are selected, which enables precise regulation of the rotor current. Adjustment of the current vectors effectively reduces harmonic distortion in key system parameters. Stator active power is regulated through the rotor current vector, thereby enhancing the system’s dynamic stability and reliability. A key contribution of this work is the complete elimination of stator voltage and current sensors, significantly reducing hardware cost and system complexity. Simulation results obtained in MATLAB/Simulink validate the effectiveness of the proposed method and demonstrate its superior performance over conventional current-based predictive control strategies.
This paper proposes a speed-sensorless closed-loop scalar control strategy for three-phase induction motor drives based on a rotor-flux model reference adaptive system (RF-MRAS). The proposed approach enhances the conventional constant V/f control by introducing a closed-loop slip compensation mechanism, eliminating bo...
M. Kuchař, Phuong Duy Nguyen· Journal of Advanced Engineer...· 0 citations
In this study, a current-torque dual-objective model predictive control (CTDO-MPC) method is proposed to improve steady-state and transient performance. Unlike conventional CO-MPC, which mainly minimizes stator current errors, the proposed method integrates current-tracking error and electromagnetic torque deviation in...
V. T. K. Nhi, Le Van Dai, B. Quy· Journal of Science and Techn...· 0 citations
Traditional model predictive current control (MPCC) usually applies only one voltage vector in each control cycle, which limits the voltage-vector regulation capability and may lead to relatively large steady-state current and torque ripple. Although the dual-vector method improves the voltage regulation capability, th...
This paper presents a direct field-oriented control (DFOC) scheme for a squirrel-cage induction motor in which the outer speed control loop is implemented using a Mamdani-type fuzzy logic controller with a full 49-rule base. The proposed approach aims to enhance dynamic performance and robustness of induction motor dri...
Hüseyin Kurt, Abbas Uğurenver· Gazi Üniversitesi Fen Biliml...· 0 citations
This paper addresses the regulation of the DC-bus voltage in a small wind energy conversion system intended to supply remote households or operate as a backup power source. The system employs a squirrel-cage self-excited induction generator connected to a DC load through a power electronic interface. To accurately repr...
Zabouri Abdelhamid, A. Belabbes, Kacimi Abderrahmane et al.· Engineering Research Express· 0 citations
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