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Conventional finite-set model-based predictive control (FS-MBPC) methods inherently present a variable switching frequency which causes harmonic distortion as well as excessive voltage and current ripple. An indirect power control strategy with fixed frequency capability is presented in this paper for a DFIG driven by an indirect matrix converter. The system initial conditions are maintained for the...
This paper proposes a predictive torque and flux control for a multi-motor drive system. The scheme is based on a six-leg indirect matrix converter used to drive two induction machines operating at the same speed even under different load torque conditions. By using the mathematical model of the converter (input filter and switches) and machines, the proposed control scheme selects the switching state...
In this paper, a topology for a grid connected generation system based on two doubly fed induction machines is presented. The proposed scheme is implemented using an indirect matrix converter consisting of an input stage and two output stages. The input stage is connected to the grid and provides the required DC voltage for both output stages. Each of the output stages is connected to the rotor of...
In this paper the control of a grid-connected Wind Energy Conversion System (WECS), based on a sensorless vector controlled Doubly-Fed Induction Generator (DFIG) fed by a matrix converter, is presented. The matrix converter is controlled using a space vector modulation algorithm. Stability issues related to the operation of the WECS connected to the grid using a matrix converter are also discussed...
In this paper, a new topology for a grid connected generation system based on two double fed induction generators is presented The scheme uses an indirect matrix converter consisting on an input rectifier, a three-to-two matrix converter which provides a DC voltage, and two voltage fed output converters. The input converter is connected to the grid and each of the output converters is connected to...
In this work, the control of a Doubly fed induction machine using an indirect matrix converter, connected between the stator and the rotor, is presented. Unlike the traditional scheme, where two back-to-back PWM inverters are used, this converter eliminates the use of bulky DC link capacitors and provides an all silicon solution for direct AC-AC conversion, with sinusoidal input currents and close...
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