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In this paper, Grey Wolf Optimizer (GWO) algorithm is applied to determine optimum switching angles for cascaded multilevel inverter of eliminating some high order harmonics while maintaining the required fundamental voltage. As case study in this paper, 11-level and 15-level inverter are considered and the optimum switching angles are calculated off-line to eliminate the 5th, 7th, 11th, 13th harmonics...
This paper proposed an experimental approach to DVTC and DPC control algorithms for Wind-Turbine System - DFIG using the DSpace software 1103 in conjunction with Matlab/Simulink. The algorithms for controlling rotor-side converter (RSC) of a doubly-fed induction generator (DFIG) system include direct power control (DPC) strategy for controlling power flow and direct virtual torque control (DVTC) strategy...
In grid connected photovoltaic (PV) systems, maximum power point tracking (MPPT) algorithm plays an important role in optimizing the solar energy efficiency. In this paper, the new artificial neural network (ANN) based MPPT method has been proposed for searching maximum power point (MPP) fast and exactly. For the first time, the combined method is proposed, which is established on the ANN-based PV...
This paper is to present a new space vector pulse width modulation (PWM) algorithm for four switch three phase inverter (FSTPI) fed induction motor under DC-link voltage imbalance. By using reasonable mathematical transform, space vector PWM (SVPWM) technique for FSTPI under DC-link voltage imbalance or ripples have been solved, which is based on the establishment of basic space vectors and modulation...
In this paper, maximum power point tracking (MPPT) algorithm to extract the maximum power is developed by using the torque applied to the generator instead of the speed. direct torque control (DTC) method is used to control the generator and the maximum power point is extracted to minimize the error between the generated power and the rated output power. The proposed algorithm is simulated by using...
The speed or the position synchronization is required for some industrial equipments, such as rolling machine and gantry crane, driven by the servo-motor driver in order to carry the cooperative job. When we design the synchronizing controller by using the commercial servo-amp, it is necessary to obtain its system parameters which are generally unknown. In this paper, the equivalent model of the commercial...
In many automated systems such as manufacturing systems and process plants, an industrial network or fieldbus is a very important component for the exchange of various and sometimes crucial information, Some of the information has a tendency to rapidly lose its value as time elapses after its creation. Such information or data is called real-time data that includes sensor values and control commands...
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