Title :
Maximal Power Point Tracking under Speed-Mode Control for Wind Energy Generation System with Doubly Fed Introduction Generator
Author :
Zhao, Y. ; Zou, X.D. ; Xu, Y.N. ; Kang, Y. ; Chen, J.
Author_Institution :
Huazhong University of Science and Technology / Electrical and Electronic College, Wuhan, China; Hubei University of Technology / School of Electrical and Electronic Engineering, Wuhan, China
Abstract :
The Doubly Fed Induction Generator (DFIG) with back-to-back four-quadrant converters between its rotor winding and the grid can realize the maximal wind energy capture in variable-speed wind energy generation system. Based on the stator flux-oriented excitation vector control strategy, this paper presents that the system dynamic characteristics under speed-mode control are superior to the dynamic characteristics under current-mode control in the process of Maximum Power Point Tracking (MPPT) and brings forward the explanation based on state space theory. And it designs the gains of two typical PI controllers in the current inner loop and the speed outer loop under speed-mode control based on Internal Model Control (IMC) theory and pole assignment method, respectively. At last, simulation results in MATLAB/SIMULINK are put forward to verify the good static and dynamic performance of the designed closed-loop control system.
Keywords :
Control systems; Energy capture; Induction generators; Power generation; Process control; Rotors; State-space methods; Stators; Wind energy; Wind energy generation; Doubly Fed Induction Generator (DFIG); Internal Model Control (IMC); PI controller; current-mode control; pole assignment; speed-mode control;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
Conference_Location :
Shanghai, China
Print_ISBN :
1-4244-0448-7
DOI :
10.1109/IPEMC.2006.4777975
