Title :
Stand-alone Doubly-Fed Induction Generators (DFIGs) with autonomous frequency control
Author :
Yongzeng Zhang ; Boon Teck Ooi
Author_Institution :
Electr. & Comput. Eng., McGill Univ., Montreal, QC, Canada
Abstract :
Summary form only given. This paper presents an innovative control which enables a wind farm based on DFIGs to continue operating on islanding because: (1) each stand-alone DFIG has autonomous frequency control over its stator voltage; (2) multiple units of such DFIGs synchronize to form a common wind farm grid frequency; (3) the DFIGs share the wind farm load by using the common wind farm frequency to implement frequency droop control. Autonomous frequency control is based on integrating the properties of phase-locked loops (PLL) with decoupled P-Q control to produce self-sustaining stator voltages by feedback.
Keywords :
asynchronous generators; distributed power generation; frequency control; machine control; phase locked loops; power distribution faults; stators; wind power plants; DFIG; PLL; autonomous frequency control; common wind farm grid frequency; decoupled P-Q control; frequency droop control; innovative control; islanding; phase locked loops; self-sustaining stator voltages; stand-alone doubly-fed induction generators; Frequency control; Frequency synchronization; Induction generators; Phase locked loops; Stators; Voltage control; Wind farms;
Conference_Titel :
PES General Meeting | Conference & Exposition, 2014 IEEE
Conference_Location :
National Harbor, MD
DOI :
10.1109/PESGM.2014.6938844
