Operational economic evaluation of hydro-wind-photovoltaic power generation system considering the vibration avoidance strategy

被引：0
|
作者：
Chen D. [1 ]
Zhang M. [1 ]
Liu Y. [1 ]
Zhao P. [1 ]
Zhao Z. [1 ]
He M. [1 ]
机构：
[1] College of Water Resources & Architectural Engineering, Northwest A&F University, Yangling
来源：
Shuili Xuebao/Journal of Hydraulic Engineering | 2024年 / 55卷 / 04期
关键词：
economic evaluation; hydro-wind-photovoltaic complementary power generation system; non-dominant genetic algorithm; vibration avoidance strategy;
D O I：
10.13243/j.cnki.slxb.20230475
中图分类号：
学科分类号：
摘要：
In order to evaluate the economie performanee of hydropower units more comprehensively and accurately in the wind-solar-water hybrid power generation system, in this paper the life loss cost of hydropower units is included into the system operating cost, and an economic evaluation model of the target solar-hydro hybrid power generation system is established with the goal of minimum system operating cost, maximum power generation, and minimum power load deviation. Fully considering the differences in the operation strategies of hydropower units, the system economic characteristics and unit operation characteristics of the units under vibration isolation and non-vibration isolation operation are compared. The model is solved based on the NSGA— II intelligent optimization algorithm, and the economics of system operation under a typical wind and solar output scenario are analyzed by taking a clean energy base in China as an example. The research results show that, compared with the operation of hydro-power units without vibration avoidance, the hydro—wind-solar hybrid system adopting the vibration—avoidance operation mode reduces the average value of power generation and power-load deviation by 0.09% (0.02 GWh) and 2.10% (1.89 MW) respectively, but the average system operating cost decreased by 0.24% (RMB 17,100 yuan). On the whole, in the case of no significant increase in power generation, although the performance of the non—vibration-proof operation mode is superior in terms of power and load deviation, the operating cost due to the fatigue loss of the unit increases significantly, and the safety problem of the unit is prominent, and its comprehensive economic performance is not as good as vibration-proof operation. This research has certain guiding significance for optimizing the operation mode of hydropower units in the hydro—wind hybrid system and improving the overall economic benefits of the hybrid power generation system. © 2024 International Research and Training Center on Erosion and Sedimentation and China Water and Power Press. All rights reserved.
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页码：403 / 415
页数：12
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