Title :
Regional modeling approach for analyzing harmonic stability in radial power electronics based power system
Author :
Changwoo Yoon ; Haofeng Bai ; Xiongfei Wang ; Bak, Claus Leth ; Blaabjerg, Frede
Author_Institution :
Dept. of Energy Technol., Aalborg Univ. Aalborg, Aalborg, Denmark
Abstract :
Stability analysis of distributed power generation system becomes complex when there are many numbers of grid inverters in the system. In order to analyze system stability, the overall network impedance will be lumped and needs to be analyzed one by one. However, using a unified bulky transfer-function creates an ambiguity of knowing the reason of instability and also there is no fixed way of choosing the sequence of the analysis. This paper suggests a method to perform a regional stability analysis in the distribution power system. The main idea is started from the simplest stability analysis entity and then it is expanded for generalizing its concept to an overall radial structured network.
Keywords :
distributed power generation; electric impedance; invertors; power conversion harmonics; power electronics; power grids; power system stability; distributed power generation system harmonic stability analysis; grid inverter; network impedance; radial power electronics; radial structured network; regional modeling approach; unified bulky transfer function; Analytical models; Impedance; Inverters; Power system stability; Stability criteria; Thermal stability; Nyquist stability criterion; Power system stability; Stabilit; power converters; radial network;
Conference_Titel :
Power Electronics for Distributed Generation Systems (PEDG), 2015 IEEE 6th International Symposium on
Conference_Location :
Aachen
DOI :
10.1109/PEDG.2015.7223048
