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Wide-area power system stabilizer design based on Grey Wolf Optimization algorithm considering the time delay
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DOI：10.1016/j.epsr.2015.12.019.png)
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This paper proposes a method for designing wide-area power system stabilizer (WAPSS) based on the Grey Wolf Optimization (GWO) algorithm. The stabilizer is used to damp the inter-area oscillations by considering the communication latency which is related to the remote feedback signals. For this reason, a new multi-objective function is proposed for the design of the WAPSS. In this function, in addition to improving the stability of the system by displacing the critical modes, the stabilizer is designed in the minimum-phase with a less control gain. In this method, the maximum delay margin in which the closed-loop power system can remain stable can also be optimally identified. The proposed approach is tested in a small and a large multi-machine power system. The nonlinear simulation results and eigenvalues analysis have demonstrated that the approach which has been proposed in this article is highly effective in damping the inter-area oscillations as well as compensating for the destructive effects of the communication delay on the remote feedback signals. (C) 2016 Elsevier B.V. All rights reserved.
Keyword:
Wide-area measurement system (WAMS)
Power system stabilizer (PSS)
Inter-area oscillations
Grey Wolf Optimization (GWO) algorithm
Time delay compensation
期刊
IF:
4.2
论文数:
1.2W
被引数:
2.2W
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