Source-Load Matching Analysis and Optimal Planning of Wind-Solar-Thermal Coupled System Considering Renewable Energy Ramps

doi:10.16183/j.cnki.jsjtu.2022.260

Abstract

Abstract:

Wind, photovoltaic, and thermal power generation can form a coupled system through the same grid-connected point, which is a high coordination and low-carbon approach of renewable energy and flexible regulating power source at generation side in northern China. By considering renewable energy ramps and source-load matching analysis, this paper studies the optimal capacity planning of a wind-solar-thermal coupled system to provide reference for coupled system planning. First, the operation model and the uncertainty method of coupled system are briefly described. Then, considering the wind-solar complementary, ramp events, and critical load characteristics, relevant indices are selected and proposed for source-load matching evaluation. After that, considering the constraints of source-load characteristics, matching, and cost, an optimal capacity planning model of wind-solar-thermal coupled system is established. Finally, based on the actual data in Liaoning Province, a case study is conducted to acquire the optimal capacity of the wind and solar generation in the area, and the interaction between the source-load relevant indices and the planning results is analyzed, which provides reference and suggestion for the optimal capacity planning of renewable energy generation.

Key words: wind-solar-thermal coupled system, optimal capacity planning, source-load matching, ramp event

CLC Number:

TM61
TM715

XIA Qinqin, LUO Yongjie, WANG Rongmao, ZOU Yao, LUO Huanhuan, LI Jincan, ZHOU Niancheng, WANG Qianggang. Source-Load Matching Analysis and Optimal Planning of Wind-Solar-Thermal Coupled System Considering Renewable Energy Ramps[J]. Journal of Shanghai Jiao Tong University, 2024, 58(1): 69-81.

Figures/Tables 7

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输入				输出
情形	最大负荷/MW	峰谷差率	新能源最小利用率/%	风电安装容量/MW	光伏安装容量/MW	新能源渗透率/%	总综合收益/元
1	1400	0.6	99	357.01	263.58	34.09	1.8987×10⁹
2	1400	0.6	95	372.05	274.68	35.02	1.9343×10⁹
3	1400	0.6	90	392.71	289.94	36.26	1.9824×10⁹
4	1400	0.6	85	415.82	306.99	37.59	2.0320×10⁹
5	1400	0.55	99	473.6	293.32	38.99	2.1385×10⁹
6	1400	0.55	90	520.96	322.65	41.28	2.2383×10⁹
7	1300	0.6	99	295.27	230.08	30.44	1.7672×10⁹
8	1300	0.6	90	324.8	253.09	32.50	1.8290×10⁹
9	1300	0.55	99	403.57	260.17	35.61	1.9960×10⁹
10	1300	0.55	90	443.93	286.19	37.83	2.0780×10⁹
11	1200	0.6	99	226.71	199.02	26.19	1.6047×10⁹