An Optimal Automatic Generation Control Strategy for Interconnected Power Grid with Wind Power

Yi Xuan Weng; Chang Hong Deng; Lei Chen

doi:10.4028/www.scientific.net/AMR.860-863.2017

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 860-863An Optimal Automatic Generation Control Strategy...

An Optimal Automatic Generation Control Strategy for Interconnected Power Grid with Wind Power

Abstract:

As the continuous increase of wind power installed capacity in modern grid, its inherent randomness and fluctuation may cause a series of problems to power system frequency control. Since the dynamic characteristics of traditional automatic generation control (AGC) based on PI control cannot fully and effectively meet the interconnected power grids requirements for load frequency control. In this paper, a strategy based optimal control theory is proposed, and a new dynamic cost function is also presented. Compared to the conventional PI control method, the proposed strategy has better dynamic adaptability to interconnected power system with wind generation, and the optimal coordination among control areas can be realized more easily. Take the two-area interconnected power system with wind power model as an example, the simulation is carried out based on MATLAB/SIMULINK. The simulation results show that the control strategy can obviously suppress the fluctuation of system frequency and tie-line power, and its effectiveness is confirmed.

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Periodical:

Advanced Materials Research (Volumes 860-863)

Pages:

2017-2022

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.860-863.2017

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Online since:

December 2013

Authors:

Yi Xuan Weng*, Chang Hong Deng, Lei Chen

Keywords:

Automatic Generation Control (AGC), Interconnected Power Grid, Optimal Dynamic Feedback Control, Wind Power

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