Title :
Sliding-mode control for grid-side converters of DFIG-based wind-power generation system
Author :
Di Zhang ; Yanjun Wei ; Lixuan Ma ; Hao Ding ; Xiangli Li ; Jinlong Zhang ; Hanhong Qi
Author_Institution :
Sch. of Electr. Eng., Yanshan Univ., Qinhuangdao, China
fDate :
Aug. 31 2014-Sept. 3 2014
Abstract :
On the basis of the mathematical model of DFIG´s Grid-Side Converter(GSC) in two-phase stationary α-β reference frame, an improved control strategy of GSC is presented based on sliding-mode control (SMC). The method uses double-loop structure. Direct power control based on sliding-mode control is used in the inner-loop, and a sliding mode controller was designed to improve the dc-link voltage stability in the outer-loop. The controller has advantages of simple structure, high control precision, rapid response speed and strong robustness, which is designed with both the excellent transient and steady state behavior of the system in consideration. Simulation results confirm the reliability and validity of the control strategy.
Keywords :
asynchronous generators; control system synthesis; machine control; power control; power generation control; power grids; power system stability; variable structure systems; wind power plants; DFIG-based wind-power generation system; GSC; SMC; dc-link voltage stability; direct power control; double-loop structure; grid-side converters; improved control strategy; inner-loop; mathematical model; rapid response speed; sliding-mode control design; steady state behavior; transient behavior; two-phase stationary α-β reference frame; Power control; Reactive power; Sliding mode control; Steady-state; Transient analysis; Voltage control;
Conference_Titel :
Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-4240-4
DOI :
10.1109/ITEC-AP.2014.6940886
