Description

A new 11-Level Inverter with flexible AC transmission system (FACTS) capability is designed and implemented using SHE-PWM technique. The proposed inverter is placed between the STATCOM and the grid, same as a regular WEI, and is able to regulate active and reactive power transferred to the grid. This inverter is equipped with distribution static synchronous compensators option in order to control the power factor (PF) of the local feeder lines. Using the proposed inverter for small-to medium- size wind applications will eliminate the use of capacitor banks as well as FACTS devices to control the PF of the distribution lines. The goal of this paper is to introduce new ways to increase the penetration of renewable energy systems into the distribution systems. This will encourage the utilities and customers to act not only as a consumer, but also as a supplier of energy. The switching instants for SHEPWM involves the solution of nonlinear algebraic transcendental equations. An energy function is formulated for this set of nonlinear algebraic transcendental equations describing the behavior of Generalized Hopfield Neural Network (GHNN) is obtained. The solution of an energy function is redrafted as an optimization problem, and it is solved by using GHNN. The simulations for an 11-level inverter have been done in MATLAB/Simulink to validate the simulation results.