DocumentCode :
1758364
Title :
Large-Scale PV Plant With a Robust Controller Considering Power Oscillation Damping
Author :
Shah, Rohan ; Mithulananthan, N. ; Lee, Khuan Y.
Author_Institution :
Sch. of Inf. Technol. & Electr. Eng., Univ. of Queensland, Brisbane, QLD, Australia
Volume :
28
Issue :
1
fYear :
2013
fDate :
41334
Firstpage :
106
Lastpage :
116
Abstract :
Transmission voltage-level photovoltaic (PV) plants are becoming reality in many developed and developing countries around the world. Studies suggest that large-scale PV plants could have either positive or negative influence on low-frequency oscillation (LFO) depending on their locations and sizes. Given the fact that these plants cannot be placed in ideal locations to minimize their impact on LFO, it is important to consider designing a damping controller for flawless integration. In this paper, a minimax linear quadratic Gaussian-based power oscillation damper (POD) for a large-scale PV plant is proposed for interarea oscillation damping. A benchmark power system prone to power system oscillations is used to demonstrate the damping performance of the designed controller considering feedback signal transmission delay. The performance of the designed controller is evaluated under different operating conditions as compared to the classical POD at PV plant. Simulation results demonstrate that the proposed controller for a PV plant provides sufficient damping to the interarea mode for a wide range of operating conditions.
Keywords :
delays; feedback; linear quadratic Gaussian control; photovoltaic power systems; power generation control; power system stability; robust control; LFO; POD; benchmark power system; damping controller design; feedback signal transmission delay; interarea oscillation damping; large-scale PV plant; low-frequency oscillation; minimax linear quadratic Gaussian-based power oscillation damper; power oscillation damping; power system oscillations; robust controller; transmission voltage-level photovoltaic plant; Control systems; Damping; Generators; Mathematical model; Oscillators; Power system stability; Robustness; Damping controller; interarea mode; minimax linear quadratic Gaussian (LQG); uncertainties;
fLanguage :
English
Journal_Title :
Energy Conversion, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8969
Type :
jour
DOI :
10.1109/TEC.2012.2230328
Filename :
6381478
Link To Document :
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