scholarly journals Coordinative Optimal Operation Mode of Regional Energy Internet

2021 ◽  
Vol 1871 (1) ◽  
pp. 012021
Author(s):  
Congcong Li ◽  
Qing Wang ◽  
Hongxia Zhu ◽  
Xinping Wang ◽  
Chao Yu ◽  
...  
Complexity ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Guofeng Wang ◽  
Kangli Zhao ◽  
Yu Yang ◽  
Junjie Lu ◽  
Youbing Zhang

As a new form of smart grid, the energy transmission mode of the Energy Internet (EI) has changed from one direction to the interconnected form. Centralized scheduling of traditional power grids has the problems of low communication efficiency and low system resilience, which do not contribute to long-term development in the future. Owing to the fact that it is difficult to achieve an optimal operation for centralized control, we propose a decentralized energy flow control framework for regional Energy Internet. Through optimal scheduling of regional EI, large-scale utilization and sharing of distributed renewable energy can be realized, while taking into consideration the uncertainty of both demand side and supply side. Combing the multiagent system with noncooperative game theory, a novel electricity price mechanism is adopted to maximize the profit of the regional EI. We prove that Nash equilibrium of theoretical noncooperative game can realize consensus in the multiagent system. The numerical results of real-world traces show that the regional EI can better absorb the renewable energy under the optimized control strategy, which proves the feasibility and economy of the proposed decentralized energy flow control framework.


2017 ◽  
Vol 9 (5) ◽  
pp. 848 ◽  
Author(s):  
Rishang Long ◽  
Jian Liu ◽  
Chunliang Lu ◽  
Jiaqi Shi ◽  
Jianhua Zhang

2019 ◽  
Vol 22 (6) ◽  
pp. 6-13 ◽  
Author(s):  
E. V. Ageeva ◽  
B. N. Sabelnikov ◽  
A. V. Shcherbakov ◽  
A. I. Pykhtin

The current economic situation in the global fuel market leads to the fact that there is a rise in the cost of operating vehicles. All this makes the owners of such vehicles pay close attention to their optimal operation mode, which primarily depends on competent diagnosis of its components. Saving fuel-operating resources of a modern car directly depends on optimally adjusted parameters of operation of all components and assemblies of a car. The purpose of this work was to increase the efficiency of the process of technical operation of vehicles through the use of the method of remote diagnostics on the example of LLC POGA-1. The practice of using diagnostic tools demonstrates the possibilities of reducing operating costs. This is achieved due to an increase in the resources actually used, a decrease in the number of repairs and the saving of spare parts costs. Over the past years in the Russian Federation has been actively developing the field of freight. The largest share falls on road transport (67.7%). A significant proportion of the country's truck fleet is used as a commercial vehicle, which significantly complicates the procedure for timely diagnosis. Thus, in the event of a malfunction or error in the operation of a motor vehicle, the vehicle can be on a flight and there will not be a specialized service station within range of technical diagnostics of the truck to identify the causes of errors and / or malfunctions. The established problem finds its solution in the application of the method of remote diagnosis of commercial vehicles straight from the TO center, which is equipped with the necessary complex for diagnosing.


Author(s):  
Wen Li ◽  
Hao Li ◽  
Bin Li ◽  
Chang Liu ◽  
Guo Shi

2019 ◽  
Vol 111 ◽  
pp. 03006
Author(s):  
Yue Zhang ◽  
Xiaofeng Li ◽  
Bin Wang ◽  
Zheren Song

This paper mainly studied the operation strategy for subway VAC system during transition seasons. Two modes including WF-AC (Whole Fresh air- Air Conditioning) mode and B/E-V (Back/Exhausted fan-Ventilation) mode were selected based on energy saving principle. In order to decide the optimal operation mode, the calculation method of “switching temperature” was proposed. The main influencing factors of the switching condition include indoor cooling load, COP of the chilled-water-system, temperature difference of the supply air, efficiency of fan and the resistance of air duct. Also, the transfer temperature diagram is provided based on proposed calculation method, which is suitable for engineering use. The aim of this study is to regulate the operation mode and to promote energy saving in subway station.


2009 ◽  
Vol 407-408 ◽  
pp. 207-210
Author(s):  
Qi Feng Wang

To effectively realize the optimal operation target of paperless production, real time production and integration in manufacturing process for workshop manufacturing system, this paper puts forward an equipment integration-based workshop e-Manufacturing execution mode, and analyzes the basic elements for the operation mode. Furthermore, some of the key issues which are important to support the operation mode are described in detail, including system integration technologies, equipment integration-based real time data collection and information interaction technologies. Finally, the operation mode is applied in a NC workshop of an automobile part manufacturing enterprise in Chongqing, and its feasibility is demonstrated.


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