Modeling the system for hybrid renewable energy using highly efficient converters and generator

Research Contents

    The paper is organized/contents as follows. The first section commerce with an introduction, and the second section provides generator-side modeling such as wind turbine modeling, generator performance, DPC with SVM and AC/DC converter, flux, and power estimation. The photovoltaic (PV) side isolated capacitor split converter analysis is discussed in Section 3. The front-end converter is analyzed in Section 4. Simulation, performance evaluation, and the discussion of the results are given in Section 5. Design considerations are defined in Section 6.

The research results and their significance

    The front-end converter outputs are analyzed for wind-driven synchronous reluctance generator (SRG) and hybrid with photovoltaic (PV) in this paper. It is observed that the front-end converter is suitable for isolating the sources from all loads and enhancing the DC bus voltage. The SRG is considered and modeled by using finite element analysis (FEA). A line voltage sensor-less direct power control (DPC) with a constant switching frequency, a three-phase controlled rectifier, has been applied. It is observed that the control algorithm is simple, which gives an inexpensive implementation. Furthermore, the decoupling between the active and reactive currents, coordinate transformation, and current regulation loops are not required.

    The power equation is used for the analysis of power behavior in real time. The flux and line currents, together with the voltage vector, are used to achieve precise power control, with advanced space vector modulation (SVM) strategies for the reduction of switching losses. Further, the paper also includes the experimental validation of simulated results with the developed prototype of the SRG side.