Title :
Small-signal modeling and stability analysis of DC microgrid with multiple type of loads
Author :
Fei Zhao ; Ningning Li ; Zhenggang Yin ; Xisheng Tang
Author_Institution :
Inst. of Electr. Eng., Beijing, China
Abstract :
DC microgrid is an efficient solution for integration of multiple Distributed Generations (DGs) and loads. The stability of DC system can be influenced by different kinds of loads. In this paper, the small signal model is established for DC microgrid with multi-type of loads. Lyapunov Stability Theory is applied to investigate the dynamic stability of DC microgrid. Traces of eigenvalues demonstrate that high portion of Constant Power Loads (CPL) may bring negative effect to DC microgrid while Constant Current Loads (CCL) has little influence.
Keywords :
Lyapunov methods; distributed power generation; eigenvalues and eigenfunctions; power system stability; DC microgrid; Lyapunov stability theory; constant current loads; constant power loads; distributed generations; eigenvalues; small-signal modeling; stability analysis; Batteries; Eigenvalues and eigenfunctions; Load modeling; Microgrids; Power system stability; Stability analysis; DC Microgrid; Load Characteristics; Small-signal Model; Stability Analysis;
Conference_Titel :
Power System Technology (POWERCON), 2014 International Conference on
Conference_Location :
Chengdu
DOI :
10.1109/POWERCON.2014.6993873
