Design of a Photo-Voltaic System to Enhance Network Dynamic Stability

Guojie Li, Yuanzhang Sun, Qi Wang, San-Shing Choi, Si-Ye Ruan

Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China.
Power System Department, China Electrical Power Research Institute, Beijing, China.
School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore.
State Grid Operation Company Ltd, Beijing, China.
The School of Electrical Engineering, Wuhan University, Wuhan, China.

DOI: 10.4236/sgre.2010.11001                

Abstract

Due to the increasing amount of photovoltaic (PV)-based power generation being connected to power systems, issues pertaining to the integration of the PV-based generators have attracted intense attention. In this connection, the design of a PV-based stabilizer for enhancing power system dynamic stability is examined. The damping action is achieved through the independent control of real power flow from the stabilizer and voltage at the point of common coupling between the stabilizer and grid system. The stabilizer system is designed based on classical frequency response technique. Robustness of the proposed control strategy in enhancing network dynamic stability is demonstrated through computer simulation.

Keywords

PV Damping System, Power Oscillations, Damping Ratio

Conflicts of Interest

The authors declare no conflicts of interest.

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