Multi‐time‐scale coordinated ramp‐rate control for photovoltaic plants and battery energy storage. Issue 12 (20th August 2018)

• Record Type: Journal Article
• Authors: Ai, Xiaomeng; Li, Jiaming; Fang, Jiakun; Yao, Wei; Xie, Hailian; Cai, Rong; Wen, Jinyu
• Is Part Of: IET renewable power generation. Volume 12:Issue 12(2018)
• Page Start: 1390
• Page End: 1397
• Publication Date: 2018-08-20
• Subjects: power generation control -- photovoltaic power systems -- solar power stations -- battery storage plants -- power grids -- power measurement -- feedback; multitime‐scale coordinated ramp‐rate control -- photovoltaic plants -- battery energy storages -- solar irradiance variability -- solar PV plants -- power system regulations -- solar PV station -- grid code requirement -- feedback control -- mathematical optimisation -- short‐term forecast -- historical samples -- state‐of‐charge reference -- solar power curtailment -- limited BES capacity -- real‐world solar PV power measurements -- ramp range requirements; Renewable energy sources -- Periodicals; 333.79405
• DOI: 10.1049/iet-rpg.2018.5190
• Languages: English
• ISSNs: 1752-1416

Abstract

Abstract : The variability of solar irradiance with a high ramp rate may lead to fluctuation in the output of photovoltaic (PV) plants and burdens the power system regulations. A novel control method coordinating the solar PV plants and the battery energy storages (BES) is proposed, aiming at minimising the gap between multi‐time‐scale ramp of solar PV station and the grid code requirement. The proposed control method combines the computationally efficient feedback control and the mathematical optimisation. Both the short‐term forecast and the historical samples are utilised to regulate the output of the PV plants and BES. The state‐of‐charge reference is adapted by the proposed control in real‐time operation for the better performances. The necessary solar power curtailment is investigated with limited BES capacity. The effectiveness of the proposed control method is comprehensively verified by simulations based on real‐world measurements of solar PV power under various BES capacity and ramp range requirements.