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Open AccessArticle

Two-Tier Reactive Power and Voltage Control Strategy Based on ARMA Renewable Power Forecasting Models

State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071003, China
State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems, China Electric Power Research Institute, Beijing 100192, China
Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
C-MAST, University of Beira Interior, 6201-001 Covilhã, Portugal
INESC TEC and the Faculty of Engineering of the University of Porto, 4200-465 Porto, Portugal
INESC-ID, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal
Authors to whom correspondence should be addressed.
Energies 2017, 10(10), 1518;
Received: 31 July 2017 / Revised: 24 September 2017 / Accepted: 26 September 2017 / Published: 1 October 2017
To address the static voltage stability issue and suppress the voltage fluctuation caused by the increasing integration of wind farms and solar photovoltaic (PV) power plants, a two-tier reactive power and voltage control strategy based on ARMA power forecasting models for wind and solar plants is proposed in this paper. Firstly, ARMA models are established to forecast the output of wind farms and solar PV plants. Secondly, the discrete equipment is pre-regulated based on the single-step prediction information from ARMA forecasting models according to the optimization result. Thirdly, a multi-objective optimization model is presented and solved by particle swarm optimization (PSO) according to the measured data and the proposed static voltage stability index. Finally, the IEEE14 bus system including a wind farm and solar PV plant is utilized to test the effectiveness of the proposed strategy. The results show that the proposed strategy can suppress voltage fluctuation and improve the static voltage stability under the condition of high penetration of renewables including wind and solar power. View Full-Text
Keywords: ARMA; reactive power; voltage stability; control strategy; renewable ARMA; reactive power; voltage stability; control strategy; renewable
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Lu, J.; Wang, B.; Ren, H.; Zhao, D.; Wang, F.; Shafie-khah, M.; Catalão, J.P.S. Two-Tier Reactive Power and Voltage Control Strategy Based on ARMA Renewable Power Forecasting Models. Energies 2017, 10, 1518.

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