Abstract
This study proposes a new Adaptive Neuro-Fuzzy Inference System (ANFIS) controller to control the power system tuned by a wind turbine. The purpose of design is to improve the dynamical response of power systems after fault which the voltage controller has been improved. The effectiveness of the proposed approach is studied under different situations of three machines 9 bus power systems which the wind turbine is replaced by wind turbine equipped by ANFIS controller. The simulation results confirm that the tuning method is able to preserve optimal performances over wide range of disturbances. The results have demonstrated the high performances of the proposed technique in terms of low oscillation, ripple, rapidity and accuracy.
Highlights
Electrical energy is a flexible, adaptable form of energy, but it is difficult to store, and consumption by customers and coincidental demand are constantly varying
The mechanical power PT captured from a wind turbine of a blade radius (R) running in a wind stream of velocity Vw is given by the equation: Where r is PT = rpR 2C p (l, b )Vw the air density, C p is known as the power coefficient of the turbine
The torque is optimized by the Adaptive Neuro-Fuzzy Inference System (ANFIS) controller shown in figure
Summary
Electrical energy is a flexible, adaptable form of energy, but it is difficult to store, and consumption by customers and coincidental demand are constantly varying These requirements necessitate permanent transmission and provision of energy via a distribution system by high voltage for high powers and long distances and low voltage for medium and low powers and short distances. A compromise between stability and accuracy is necessary for the performance of ideal controller To surmount this requirement, Adaptive Neuro-Fuzzy Inference System (ANFIS) offers several attractive properties for the tracking control, such as lack of sensitivity to parameter variations, external disturbance rejection and fast dynamic responses [8]. A new ANFIS controller is proposed to control voltage of power system in presence of wind turbine which strong three-phase fault is applied.
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