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Open AccessArticle

Bi-Level Model Predictive Control for Optimal Coordination of Multi-Area Automatic Generation Control Units under Wind Power Integration

College of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443002, China
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Processes 2019, 7(10), 669; https://doi.org/10.3390/pr7100669
Received: 22 August 2019 / Revised: 11 September 2019 / Accepted: 12 September 2019 / Published: 27 September 2019
(This article belongs to the Section Computational Methods)
With the high degree of wind power penetration integrated into multi-area AC/DC interconnected power grids, the frequency regulation capacity of automatic generation control (AGC) units is not sufficient in the wind power-penetrated area, making it difficult to effectively suppress the frequency stability caused by the fluctuation of wind power. Therefore, a coordinated control strategy for AGC units across areas based on bi-level model predictive control is proposed in this paper to achieve resource sharing. The control scheme uses economic model predictive control to realize steady power optimal allocation of the AGC units across areas in the upper layer and distributed model predictive control to realize dynamic frequency optimization control of the multi-area AGC units in the lower layer. Taking a three-area AC/DC interconnected power grid with a wind farm as an example, the simulation results show that, compared with model predictive control using tie-line frequency bias control (TBC) mode, the proposed control strategy can not only effectively maintain tie-line safety and frequency stability, but can also reduce the regulation cost of multi-area AGC units. View Full-Text
Keywords: wind farm; automatic generation control units; DC power modulation; economic frequency regulation; bi-level model predictive control wind farm; automatic generation control units; DC power modulation; economic frequency regulation; bi-level model predictive control
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Xia, C.; Liu, H. Bi-Level Model Predictive Control for Optimal Coordination of Multi-Area Automatic Generation Control Units under Wind Power Integration. Processes 2019, 7, 669.

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