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Wind energy extraction and conversion : optimization through variable speed gen...

The maximization of wind energy extraction can be obtained using variable speed electrical generators in conjunction with non linear control algorithms. This paper presents an incremental speed control method which is independent from both wind speed measurement and specific systems characteristics. The algorithm is based on the dynamic behaviour of the electrical generator and uses fuzzy logic as a non linear ...

Optimization of energy generation in wind farm through fuzzy control

Wind farms are energy generation systems being autonomous and controllable generating units. At current technological status, each set turbine-generator-power converter should be considered as a unit. These units work as an individual system for variable speed systems. Variable speed wind systems demand for an appropriate control of operating point at different wind regimens as well they can operate at differen...

Direct current control of an active power filter for harmonic elimination, powe...

An active power filter is designed, simulated, implemented, and tested. It can work in different modes: active power filtering, power factor correction, and load unbalance compensation. It is based on a current controlled voltage-source inverter with fixed carrier PWM. The control algorithm generates the source reference currents based on the controlled DC link voltage. The dimensioning criteria of the inductiv...

Fuzzy control for parallel operation of power multi-sources

Current control in the grid connection of the double-output induction generator...

The output power of present wind turbines is continuously increasing. At high power levels, to limit mechanical stresses and power surges in the grid it is necessary to use speed control systems. The double-output induction generator (DOIG) system is an excellent solution to adjust the speed over a wide range. At present the two converters associated with the DOIG use high power IGBTs with medium switching freq...

Fuzzy controllers with reduced rulebases and real-time capability for power sys...