Title :
High Performance Rectifier with Wide Speed Range for Direct-Drive Wind Energy System
Author :
Zhang, Hongyang ; Fan, Changbao ; Tang, Renyuan ; Zhu, Jianguang
Author_Institution :
Res. Inst. of Special Electr. Machines, Shenyang Univ. of Technol., Shenyang, China
Abstract :
A high performance rectifier with a novel structural and wide speed range for direct-drive wind energy system has been investigated and design. The utilization rate and efficiency of low wind are critical focus for wind energy system, in the form of ultimate output dc voltage as the optimum object, a traditional full-bridge PWM rectifier and a boost circuit for the direct-drive permanent magnet synchronous generator (PMSG) compose the novel rectifier in order to achieve the satisfying demands of high performance and low-wind speed. The design can feasible realize the maximum power point tracking (MPPT) with a modified strategy and unit power factor (UPF) control, and improve the ability greatly of full-speed operation especially. The analysis and investigation results all have been confirmed that the excellent dynamic states and steady states performances of the rectifier.
Keywords :
PWM rectifiers; maximum power point trackers; motor drives; permanent magnet generators; power factor; power system control; synchronous generators; wind power plants; boost circuit; direct-drive permanent magnet synchronous generator; direct-drive wind energy system; dynamic states; full-bridge PWM rectifier; high performance rectifier; maximum power point tracking; steady states; unit power factor control; wide speed range; Pulse width modulation; Reactive power; Rectifiers; Rotors; Wind energy; Wind speed; Wind turbines; PMSG; direct-drive; rectifier; wide speed range;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6880-5
DOI :
10.1109/iCECE.2010.928
