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This paper presents a novel robust control design approach for grid-connected voltage-source-inverter with uncertain grid-impedance. The proposed method is based on the fusion of intelligent and robust control theories. The controller is designed to achieve the highest convergence rate of the system for a certain uncertainty range. The control objective is to regulate the real and reactive power injected...
Renewable energy sources such as Solar, wind etc. have gained a lot of interest and application in the recent years, as they can provide electric power on a large scale and are environment friendly. The advancement in the technology of these renewable energy systems has been investigated now a days with a lot of interest. An integral component of the power electronics system that interfaces a renewable...
In this paper, a new control technique for stability improvement of the grid connected microgrids is proposed. Grid connected microgrid including voltage source inverter (VSI), PLL, coupling inductance, LC filter as well as power, and current controllers is modeled. PI power and current controllers are optimally designed to improve the stability response of the grid connected microgrid. The power...
The dynamic nature of the distribution network challenges the stability and control of the microgrids. In this paper, nonlinear model of the autonomous microgrid is presented. Optimal controller design and power sharing coefficients is carried out in this mode. The control problem has been formulated as an optimization problem where particle swarm optimization (PSO) is employed to search for optimal...
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