Title :
Reduced order observer for permanent magnet synchronous generator in wind energy conversion system
Author :
Krichen, Lotfi ; Abdallah, Hsan Hadj ; Ouali, Abderrazak
Author_Institution :
Dept. of Electr. Eng. BP W, Univ. of Sfax, Sfax
Abstract :
This paper presents an approach to develop a simple reduced speed observer for permanent magnet synchronous generator (PMSG) in wind energy conversion system (WECS). The speed and rotor position estimation of the PMSG are obtained by only measuring phase voltage and current. Maximum wind energy extraction is achieved by running the wind turbine generator in variable-speed mode. The rotor speed is allowed to vary in sympathy with the wind speed by maintaining the tip speed ratio to the value that maximizes aerodynamic efficiency. Advantages of this mechanical sensorless control strategy for maximum power estimation are demonstrated by digital simulation of the WECS.
Keywords :
aerodynamics; permanent magnet generators; synchronous generators; wind power; wind turbines; aerodynamic efficiency; maximum power estimation; maximum wind energy extraction; mechanical sensorless control strategy; permanent magnet synchronous generator; phase current; phase voltage; rotor position estimation; rotor speed; speed position estimation; variable-speed mode; wind energy conversion system; wind speed; wind turbine generator; Current measurement; Permanent magnets; Phase estimation; Phase measurement; Position measurement; Rotors; Synchronous generators; Velocity measurement; Voltage measurement; Wind energy;
Conference_Titel :
Electrical Machines and Power Electronics, 2007. ACEMP '07. International Aegean Conference on
Conference_Location :
Bodrum
Print_ISBN :
978-1-4244-0890-0
Electronic_ISBN :
978-1-4244-0891-7
DOI :
10.1109/ACEMP.2007.4510585
