Voltage Stability of Multiple Distributed Generators in Distribution Networks

Andi Wang (1) , Chongxin Liu (1) , Hervé Guéguen (2) , Zhenquan Sun (3)

1 Xjtu - Xi'an Jiaotong University
2 IETR - Institut d'Electronique et de Télécommunications de Rennes
3 Shaanxi Regional Electric Power Group Co

Recent research has proved that, the local reactive power control laws considered to solve voltage stability issue might lead to voltage instability. For this reason, the current paper proposes an approach to study voltage stability of multiple distributed generators in distribution feeders. The methodology relies on the construction of an equivalent state space model of the continuous system. A simulation based on MATLAB of the proposed approach to a real medium-voltage 26 buses network with 3 distributed generators reveals unstable operating situations of the network and helps to design a set of measurement filters to ensure system stability.

Keywords: distributed generators; voltage stability; measurement filter

Domains: Engineering Sciences [physics]; Automatic

Andi Wang, Chongxin Liu, Hervé Guéguen, Zhenquan Sun. Voltage Stability of Multiple Distributed Generators in Distribution Networks. 2016 International Conference on Mechatronics, Control and Automation Engineering, Jul 2016, Bangkok, Thailand. ⟨10.2991/mcae-16.2016.49⟩. ⟨hal-01377362⟩