scholarly journals Optimal Model for Complementary Operation of a Photovoltaic-Wind-Pumped Storage System

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Jinjin Gao ◽  
Yuan Zheng ◽  
Jianming Li ◽  
Xiaoming Zhu ◽  
Kan Kan

An optimization model for the complementary operation of a photovoltaic-wind-pumped storage system is built to make full use of solar and wind energy. Apart from ensuring the maximum economic benefit which is normally used as the only objective, the stable objectives of minimizing the output fluctuation and variation of load and output difference are added to form the multiobjective problems because of lack of study on access capacity of photovoltaic and wind power. The model aims to increase the power benefit and reduce the output fluctuation and variation of load and output difference under the constraints of station, output balance, and transmission limitation. In a case study, four schemes including single-objective independent operation, single-objective complementary operation, and multiobjective complementary operation are compared to discuss the effect of pumped storage station on economic objective and stable objectives. Furthermore, the opposite trend of the two objectives is proved and a compromise optimal solution is given. The results indicate that the pumped storage station can effectively increase power benefit and access capacity of photovoltaic and wind power. The study can provide references to the complementary optimization of the pumped storage station and the intermittent renewable energy.

2017 ◽  
Vol 5 (2) ◽  
pp. 95-100
Author(s):  
Bo Yuan ◽  
◽  
Yawu Zhang ◽  
Jin Zong ◽  
Shengyu Wu ◽  
...  

2021 ◽  
Vol 264 ◽  
pp. 04053
Author(s):  
Bоboraim Urishev ◽  
Rumiya Beytullayeva ◽  
Аsror Umirov ◽  
Оybek Almardonov

The article discusses information on the need to accumulate energy from renewable sources to improve their efficiency, as well as some examples of the integration of systems for hydraulic energy storage and renewable sources, which ensure an increase in the reliability and volume of energy generation. The method for determining the parameters of a wind power plant's hydraulic energy storage system, which is based on the balance of the daily load produced and spent on energy storage, is presented. With changing daily loads, this technique makes it possible to determine the main parameters of the complex, including the volume of accumulated water, the coefficient of energy use of the wind power station. A functional diagram of the programmed control of the pumped storage and wind power plant parameters for the optimal use of the wind potential in hydraulic energy storage is presented. Based on the results of calculations using the proposed method, the main parameters of the system based on pumped storage and wind power plant with a capacity of 100 MW were determined, the efficiency of hydraulic energy storage was determined in comparison with lithium-ion batteries.


2014 ◽  
Vol 875-877 ◽  
pp. 1852-1857
Author(s):  
Ming Guang Zhang ◽  
Yun Hu

To improve the connected-grid wind power quality as well as profit, the pumped storage station is used to configure the wind farm. The economical benefit and deviation models are built as objective functions, the united operation is based on fuzzy multi-objective evolutionary algorithm (FMOEA). In order to outstand method advantages, the results are compared with the consequences from each objective function that are optimized respectively. The analysis shows that a wind farm with a pumped storage station is as a combined system and uses FMOEA, not only improving profit, but also paying attention to reduce deviation so that can achieve the total net profit increase.


2012 ◽  
Vol 487 ◽  
pp. 825-829
Author(s):  
Han Han Sun ◽  
Yun Miao

Pumped storage is one of the optimum and practical methods acting as an energy storage plan for conventional wind power stations. However, in northwestern China where more than 50% of China's total available wind energy exists, water resources are always too scarce to support any energy storage systems. To solve this contradiction, this paper puts forward a new-type storage plan for wind power stations, namely the Sand Energy Storage System(SESS). This plan needs masses of sand or gravel as an energy storage medium and simulates the working principle of pumped storage, yet certain devices are specially designed. Additionally, this paper demonstrates further exploration of the SESS by means of a model experiment, and ensuing analysis is made according to actual situations.


2018 ◽  
Vol 1087 ◽  
pp. 042047 ◽  
Author(s):  
Cai Chen ◽  
Jie Huang ◽  
Yichun Wu ◽  
Juan Ma ◽  
Xiaojia Qin

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