wind curtailment
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Mathematics ◽  
2021 ◽  
Vol 9 (21) ◽  
pp. 2686
Author(s):  
Xiali Pang ◽  
Haiyan Zheng ◽  
Liying Huang ◽  
Yumei Liang

This paper considers the fast and effective solving method for the unit commitment (UC) problem with wind curtailment and pollutant emission in power systems. Firstly, a suitable mixed-integer quadratic programming (MIQP) model of the corresponding UC problem is presented by some linearization techniques, which is difficult to solve directly. Then, the MIQP model is solved by the outer approximation method (OAM), which decomposes the MIQP into a mixed-integer linear programming (MILP) master problem and a nonlinear programming (NLP) subproblem for alternate iterative solving. Finally, simulation results for six systems with up to 100 thermal units and one wind unit in 24 periods are presented, which show the practicality of MIQP model and the effectiveness of OAM.


Author(s):  
Ke Qing ◽  
Zhenyuan Zhang ◽  
Qi Huang ◽  
Weihao Hu ◽  
Yanting Hu ◽  
...  

2020 ◽  
Vol 5 (4) ◽  
pp. 1705-1712
Author(s):  
Matti Koivisto ◽  
Juan Gea-Bermúdez ◽  
Polyneikis Kanellas ◽  
Kaushik Das ◽  
Poul Sørensen

Abstract. This paper analyses several energy system scenarios towards 2050 for the North Sea region. With a focus on offshore wind power, the impacts of meshed offshore grid and sector coupling are studied. First, a project-based scenario, where each offshore wind power plant is connected individually to the onshore power system, is compared to a meshed grid scenario. Both the amount of offshore wind power installed and the level of curtailment are assessed. Then, these results are compared to a scenario with sector coupling included. The results show that while the introduction of a meshed grid can increase the amount of offshore wind power installed towards 2050, sector coupling is expected to be a more important driver for increasing offshore wind power installations. In addition, sector coupling can significantly decrease the level of offshore wind curtailment.


2020 ◽  
Vol 161 ◽  
pp. 1072-1091 ◽  
Author(s):  
James Dixon ◽  
Waqquas Bukhsh ◽  
Calum Edmunds ◽  
Keith Bell

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