Title :
Study of three control strategies for micro-source local load imbalance in micro-grid
Author :
Huo, Qunhai ; Tang, Xisheng ; Kong, Li
Author_Institution :
Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing, China
Abstract :
The output voltage asymmetry could lead to working disorders and even damage of electronic devices. One of most common causes of micro-source three-phase output voltage asymmetry is local micro-source three-phase load imbalance. The problem of load imbalance has not yet the relatively general solution for micro-grid three-phase four-wire structure at present. In this paper, the two existing control strategies are firstly analyzed and improved, and then Sliding Mode Variable Structure Control (SMVSC) is introduced. Three control strategies are compared at last.
Keywords :
distributed power generation; power distribution control; variable structure systems; microgrid; microgrid three-phase four-wire structure; microsource local load imbalance; microsource three-phase output voltage asymmetry; output voltage asymmetry; sliding mode variable structure control; three control strategies; Capacitors; Circuit topology; Electric variables control; Energy storage; Filters; Helium; Pulse width modulation; Sliding mode control; Transfer functions; Voltage control; Compensation method; Imbalanced load; Micro-grid; Micro-source; Tracking method; the Sliding Mode Variable Structure;
Conference_Titel :
Sustainable Power Generation and Supply, 2009. SUPERGEN '09. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4934-7
DOI :
10.1109/SUPERGEN.2009.5348217
