Journal of Applied Sciences ›› 2014, Vol. 32 ›› Issue (5): 499-507.doi: 10.3969/j.issn.0255-8297.2014.05.011

• Communication Engineering • Previous Articles     Next Articles

Modeling Grid-Connected Distributed Generation

CAO Xin-hui1, SUN Yao-jie1, LIN Yan-dan1, ZHANG Jun-jun2   

  1. 1. Institute for Electric Light Sources, Fudan University, Shanghai 200433, China
    2. China Electric Power Research Insitute, Nanjing 210003, China
  • Received:2013-05-31 Revised:2014-03-27 Online:2014-09-23 Published:2014-03-27

Abstract: Grid-connected distributed generation will affect security, power quality of the traditional power
system. Usually, voltage source inverters (VSI) are controlled to meet the requirements of grid-connected
distributed generation. Key technologies of the grid-connected VSI system are described in this paper. The
filter is analyzed and the design methods given. Meanwhile, the phase-locked loop (PLL) using the unbalanced
grid conditions and low voltage ride-through (LVRT) technology are studied. Based on the theoretical analysis,
a simulation model for the grid-connected Voltage source inverters (VSI) system is built and validated with
MATLAB/Simulink.

Key words: grid-connected distributed generation, voltage source inverters (VSI), key technologies, voltage dips

CLC Number: