scholarly journals A Decentralized Energy Flow Control Framework for Regional Energy Internet

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.

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

Author(s):  
Wei-Ming Chen ◽  
Young-Doo Wang ◽  
Jong Chul Huh ◽  
Youn Cheol Park

Augmenting recent coverage of the topic of regional energy planning, this chapter introduces an Integrated Regional Energy Policy and Planning Framework (IREPP), which is conceptually comprehensive and also enhances feasibility of implementation. This framework contains important concepts of sustainable energy planning, including integrated resource planning, soft energy path, distributed generation using decentralized energy technologies, and energy-environment-economy-equity balance (E4). The IREPP also includes implementation feasibility analysis and highlights the importance of monitoring and evaluation. In the second part of this chapter, the IREPP is applied to the case of Jeju. Jeju's “Mid- and Long-Term Roadmap of Renewable Energy Planning” intends to promote renewable energy applications in order to build a carbon free energy system. This chapter evaluates Jeju's overall Roadmap via the lens of IREPP, assesses the rationale and feasibility of achieving its individual renewable target set for 2050, and, additionally, reviews progress made in some individual targets as of 2014.


2016 ◽  
Vol 74 (3) ◽  
pp. 273-284 ◽  
Author(s):  
Claudia R. Binder ◽  
Christof Knoeri ◽  
Maria Hecher

Abstract Decentralized energy systems are increasingly seen as a key factor for a transition towards a low-carbon, renewable energy based society. Within the transition process, regional demand and supply of renewable energy carriers have to be aligned, while considering the environmental conditions of the region. This paper focuses on the energy demand from buildings, which makes up 35% of the total energy demand. It presents an approach for aligning the regional supply potential of renewable energy carriers with the dynamics of regional energy demand from buildings. The approach consists of two components. First, a dynamic model simulates regional energy demand from buildings taking into consideration envelope renovation, legislative standards, and adoption of heating technologies. Second, the regional supply is estimated based on the technical maximum possible, taking into consideration competing uses and spatial limitations. We show a first application in the case of the energy region Weiz-Gleisdorf, Austria, which aims to achieve CO2 neutrality and energy self-sufficiency by the year 2050. Our results show that in the year 2050 (i) energy demand from buildings will decrease by 40–55%, depending on envelope renovation rates and legislative standards; (ii) demand for the different renewable energy carriers will be determined by the choice of heating technology; (iii) the demand for wood could be met from regional forest resources, as long as there are no additional demands for other purposes; (iv) the demand for biomass for district heating would require 5–10% of the agricultural area to be used for the production of energy plants rather than food; and (v) in contrast to other forms of energy, the demand for electricity will remain constant or increase slightly over time. This demand could only be regionally met if significant areas of façades or gardens are used for photovoltaic electricity production in addition to roofs. Overall we identified several issues related to spatial planning and a need for further research regarding the transition towards decentralized energy systems. First, if biomass for central district heating systems is to come from regional production, areas should be allocated for cultivating energy crops used specifically to produce fuel. Second, if wood is used for district heating purposes, the extent to which the import of wood from neighboring regions would be a useful ecological solution must be evaluated; this would involve extending regional energy planning beyond the typical jurisdictional boundaries while considering ecological issues.


2021 ◽  
Vol 1871 (1) ◽  
pp. 012021
Author(s):  
Congcong Li ◽  
Qing Wang ◽  
Hongxia Zhu ◽  
Xinping Wang ◽  
Chao Yu ◽  
...  

Author(s):  
Young-Doo Wang ◽  
Wei-Ming Chen ◽  
Yong-Kyu Park

Regional energy planning, which considers the unique pattern of local energy needs and local energy resources can be a tool to mitigate fossil fuel-triggered problems and enhance sustainability. Many researches underline the importance of regional energy planning but there exists some room for improvement in the planning approaches. This chapter introduces an Integrated Regional Energy Policy and Planning Framework (IREPP), which is conceptually comprehensive and also enhances feasibility of implementation. This framework contains important concepts of sustainable energy planning, including integrated resource planning, soft energy path, distributed generation using decentralized energy technologies, and energy-environment-economy-equity balance (E4). The IREPP also includes implementation feasibility analysis and highlights the importance of monitoring and evaluation. In the second part of this chapter, the IREPP is applied to the case of Jeju, the southernmost island of Korea. Jeju’s “Mid- and Long-Term Roadmap of Renewable Energy Planning” intends to promote renewable energy applications (a 50 percent target in 2050) in order to build a carbon free energy system. This study evaluates Jeju’s overall Roadmap via the lens of IREPP and also assesses the rational and feasibility of achieving its individual renewable target.


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

Author(s):  
Matus Danko ◽  
Branislav Hanko ◽  
Peter Drgona ◽  
Ondrej Hock

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