Title :
Virtual frequency-voltage frame control of inverter based low voltage microgrid
Author :
Li, Yan ; Li, Yun Wei
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada
Abstract :
This paper presents the power management scheme for a power electronics based low voltage microgrid in islanding operation. The proposed real and reactive power control is based on the virtual frequency and voltage (¿´-E´) frame, which can effectively decouple the real and reactive power flows and improve the system transient and stability performance. Detailed analysis of the virtual frame operation range is presented, and a control algorithm to guarantee that the microgrid can be operated within the predetermined voltage and frequency variation limits is also proposed. Both simulation and experimental results are provided in this paper.
Keywords :
distributed power generation; frequency control; invertors; power system transient stability; reactive power control; voltage control; control algorithm; distributed generation; inverter based low voltage microgrid; power electronics; power management scheme; reactive power control; reactive power flows; system transient stability; virtual frequency-voltage frame control; ¿´-E´ frame; Algorithm design and analysis; Energy management; Frequency; Inverters; Low voltage; Power electronics; Power system management; Power system stability; Reactive power control; Voltage control; distributed generation (DG); droop control; islanding operation; microgrid; renewable energy; virtual frequency and voltage frame;
Conference_Titel :
Electrical Power & Energy Conference (EPEC), 2009 IEEE
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4244-4508-0
Electronic_ISBN :
978-1-4244-4509-7
DOI :
10.1109/EPEC.2009.5420973
