Title :
Small Signal Stability Fuzzy Analysis of Microgrid Based on Credibility Theory
Author :
Xu, Xialing ; Zha, Xiaoming ; Lin, Tao
Author_Institution :
Sch. of Electr. Eng., Wuhan Univ., Wuhan, China
Abstract :
The behavior of credibility theory is analyzed to account for uncertainties on the small signal stability problem of microgrid. Uncertainties such as random fluctuation of power generations and loads in a MG should be taken into consideration for effective analysis of small signal stability of the MG. Based on credibility theory. This paper presents a novel small signal stability fuzzy analysis method to assess the small signal stability of microgrid. The expectations and variances of eigenvalues can be calculated by the proposed method for analyzing and decision. A 21-bus system was used to verify feasibility and applicability of this algorithm.
Keywords :
eigenvalues and eigenfunctions; power grids; power system stability; credibility theory; microgrid; small signal stability fuzzy analysis; Eigenvalues and eigenfunctions; Hybrid power systems; Power system analysis computing; Power system modeling; Power system stability; Probability density function; Random variables; Signal analysis; Stability analysis; Uncertainty;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5448297
