Urban Energy Internet Research Articles

An Integrated Neutrosophic Approach for the Urban Energy Internet Assessment under Sustainability Dimensions


 The urgent issue of climate change has resulted in an increasing preoccupation with the transition to low-carbon energy. The urban energy internet (UEI) enables the efficient utilization of renewable energy via the integration of contemporary energy grids, smart energy services, and cyber-physical systems. Consequently, the assessment of urban energy is vital for the construction of low-carbon cities. This study intends to provide an integrated decision-making approach for addressing assessment challenges related to UEI, with a focus on sustainability. The introduced approach adopts the opinions of three experts to express their opinions through semantic terms in evaluating sustainability factors and evaluating UEI projects. Determining the most suitable project for sustainable UEI is a difficult task. In addition, there are multiple sustainability dimensions, including: economic, social, technical, environmental and resource dimension. This paper presents an integrated approach through which experts can use semantic terms to express their opinions to evaluate the priorities of sustainability dimensions that affect the sustainability of UEI projects. Therefore, this study applies a hybrid multi-criteria decision making (MCDM) approach that takes into account multiple dimensions. Also, the uncertainty in the study is handled by type 2 neutrosophic numbers (T2NNs). Initially, the CRiteria Importance through Inter-criteria Correlation (CRITIC) method was used to determine the relative importance of the sustainability dimensions used in the study. Also, the evaluation based on distance from average solution (EDAS) method was used to rank the selected alternatives. The results indicate that the technical dimension is the most important with a weight of 0.384. Finally, a sensitivity analysis was conducted to prove the validity and reliability of the developed framework with differences in weights.

A sustainability evaluation framework for the urban energy Internet using the Fermatean fuzzy Aczel-Alsina hybrid MCDM method

The evaluation of urban energy internet (UEI) is crucial for the establishment of low-carbon cities. This paper aims to present a hybrid decision-making framework to address UEI evaluation problems from a sustainability perspective. First, the Fermatean fuzzy Aczel-Alsina power aggregation operators are proposed to aggregate evaluation information, and the remarkable properties of these operators are explored. Then, the combined weight of the criteria is determined through the decision-making trial and evaluation laboratory method and the Shannon entropy-based power weighted method within the Fermatean fuzzy circumstance. Moreover, the classic multiobjective optimization by ratio analysis plus the full multiplicative form method is extended using the proposed aggregation operators. Finally, an index system was constructed from a sustainability perspective, and the level of development of the four UEI projects is assessed using the proposed method. The experimental results demonstrate that the proposed method can provide beneficial guidelines for the construction and development of the UEI. Furthermore, the reliability and effectiveness of the proposed decision-making framework are validated through sensitivity analysis and a comparative study with existing MCDM methods.

Risk identification and influence analysis model for urban energy internet based on knowledge graph improved decision-making trial and evaluation laboratory

The pressing issue of climate change has led to a growing concern for low-carbon energy transformation. Urban energy internet (UEI) provides a means to facilitate renewable energy consumption by leveraging modern energy grid, smart energy services, and cyber-physical systems. However, the implementation of UEI entails complex and unknown risks arising from energy supplies, cyber-attacks, and defective equipment. To address this challenge, we propose an improved decision-making trial and evaluation laboratory based on knowledge graph and complex network (KG-CN-DEMATEL). Specifically, we employ a knowledge graph with Gaussian embedding (KG2E) to vectorize text information related to the risks. The vectors are combined with experts’ scores, which evaluate the importance and cohesion of the complex network. We then analyze the significance and interrelations of the risks by computing their reason and central degree. Our results demonstrate that (1) the improved model offers higher accuracy and convenience than the conventional DEMATEL, (2) the 15 risks are ranked based on their importance, with R1 (Renewable energy’s uncertainty), R6 (Generation technology), and R2 (Cyber-physical degree) being the most significant, with central degrees of 2.913, 2.635, and 2.566, respectively, and (3) the risks can be classified into six causal and nine effect elements, with their interrelations analyzed.

Evaluation of the Maturity of Urban Energy Internet Development Based on AHP-Entropy Weight Method and Improved TOPSIS

With the rapid development of communication technology and information processing technology, the construction of the Urban Energy Internet (UEI) has become one of the important construction elements of the new power system, and it is necessary to assess and analyse its development status and potential. However, the results of the current assessment of the maturity of UEI development are relatively rare, and the transformation path of urban smart energy construction needs to be studied in depth. On this basis, this study aims to propose an improved and comprehensive evaluation model for the maturity of UEI development. This study first considers the dynamic development process of the UEI and proposes an evaluation index system for the maturity of UEI development that includes three dimensions of development status, development benefits and development prospects. Secondly, a comprehensive evaluation model based on GRA-KL-TOPSIS is constructed by using the AHP-entropy weighting method to calculate the combined weights of indicators and considering the Kulla back-Leibler distance to replace the Euclidean distance in the traditional evaluation method. Finally, the maturity of Energy Internet development is calculated for five typical first-tier cities in China (Beijing, Shanghai, Guangzhou, Tianjin and Shenyang), and the final ranking of the five cities is Shanghai > Beijing > Guangzhou > Tianjin > Shenyang. The results of the study prove the scientific validity of the model. Compared to the unimproved Topsis method, the evaluation results calculated based on the improved Topsis evaluation model are more objective and realistic in reflecting the score and rating of the cities. The analysis of the empirical results shows that cities at different stages of development should make up for their shortcomings and increase their investment in infrastructure development, technological innovation and the introduction of talents in order to accelerate the digital and intelligent development of energy.

Research on urban energy Internet planning based on fuzzy comprehensive method

Abstract With the continuous development of China’s economy, the process of urbanisation and industrialisation has been accelerating, and coupled with the emergence of new energy, China’s urban energy consumption has undergone huge transformation. The urban energy Internet (UEI) is an important part of the country’s ‘carbon peak and carbon neutrality’, and it is also one of the key tasks in the planning, construction and operation of the power grid transformation. The traditional grid-side planning model relies on a single deterministic planning method, and there is less consideration for new influencing factors, which has been difficult to meet the energy demand in the context of the energy Internet. In this paper, research on UEI planning based on the fuzzy synthesis method is proposed. First, the basic architectural model of UEI is constructed. At the same time, the impact of distributed generation, energy storage, demand response, communication and other key technologies on the planning of active distribution networks in the distribution network planning under the UEI is analysed. Then, a fuzzy comprehensive method is proposed to calculate the weight of UEI planning. Finally, the planning and research of UEI prospects from the aspects of equipment form, system planning, operation control, business model and collaborative development are discussed.

Evaluation and Promotion Mechanism of Urban Energy Internet Development under Double Carbon Target

Under the "double carbon" strategy, as the main source of carbon dioxide emissions, the energy industry is the main force in carbon reduction, and cities which are the main energy consumers are the main battleground. Thoroughly implementing the new development concept, building a clean, low-carbon, safe and reliable, intelligent and open energy network, and building a modern intelligent energy system are the key to realizing the low-carbon transformation of the national energy industry. This paper analyzes the requirements of energy Internet development and the shortcomings of energy Internet development based on the necessity of energy Internet development in China, constructs a development evaluation index system, and proposes the development mechanism and policy recommendations of urban energy Internet under the background of "double carbon".

Roadmap to urban energy internet: Techno-enviro-economic analysis of renewable electricity and natural gas integrated energy system

The integrated energy system which coordinates natural gas, renewable energy, and other energy subsystems is an effective way to promote a low-carbon economy. An effective framework for system assessment and optimisation is a critical issue. This paper takes a natural gas-wind-photovoltaic integrated energy system as the research object and uses the simulation software to analyse its techno-enviro-economic feasibility. Firstly, a mathematical model is customised to optimise the system installation and operation plans. Renewable electricity replaces some natural gas, resulting in pipeline pressure fluctuation. Here, the Stoner Pipeline Simulator software is used to simulate pipeline network operation to quantify the aforementioned pressure fluctuations. The proportion of renewable energy is gradually reduced until the network pressure fluctuation is less than 20% to ensure the stability of pipeline operation. Then, the optimal operation scheme can be determined. Taking three cities in Shandong, China, as cases, the results show that the proposed system is beneficial for urban energy internet development: (i) the total net present cost is reduced by 19.7%, 19.8%, and 20.8%, (ii) annual CO2 emission is reduced by 23.7%, 18.4%, and 12.2%; (iii) the levelised cost of energy is 0.142 $/kWh, 0.143$/kWh, and 0.153$/kWh.

Roadmap to urban energy internet with wind electricity-natural gas nexus: Economic and environmental analysis

Electrolysis hydrogen generation technology is one of the feasible ways to alleviate the problem of wind electricity curtailment. One promising hydrogen value-added application is to blend hydrogen into the natural gas grid and sell it as the heat energy carrier. This paper aims to discuss the feasibility of a roadmap to urban energy internet with wind electricity-natural gas nexus. Firstly, a framework is raised to integrate wind electricity generation, electrolysis hydrogen generation, and hydrogen-natural gas blending systems. Secondly, a series of reasonable hydrogen supply profiles are provided based on annual electricity curtailment and realistic natural gas scheduling. Then, an energy optimisation model and a techno-economic model are applied to simulate the generation of electricity and hydrogen, as well as determine the most economical hydrogen supply scheme. Finally, a case study in the Beijing-Tianjin-Hebei region of China is taken to validate the benefits of the proposed roadmap. The preferred scheme is worked out with the net present value of 88.8 M$, including the economy configurations of the electricity-hydrogen hybrid generation system, as well as the hydrogen-natural gas blending plan. The results also indicate that annual electricity curtailment and annual carbon emission are decreased by 204 GWh (48.8%) and 40.2 kt (49.9%).

Research on the Framework of the New Urban Energy Internet Demonstration Project

Energy is the main driving force of economic development and social progress, and the relationship between its production and supply directly determines the destiny of the country. As to the new urban Energy Internet demonstration project, the characteristics and elements of the new urban Energy Internet are analyzed in this paper, and then the overall framework and information integration framework of the new urban Energy Internet demonstration project is proposed. Finally the overall framework and functional requirements of Energy Internet comprehensive management and service platform and the perception layer equipment are proposed, which can provide technical support and framework guidance for the development of new urban Energy Internet business.

Research on Multi-level Distribution Strategy Based on Energy Internet

Smart city energy Internet is to comply with the trend of sustainable energy development, urban power energy as the center, comprehensive utilization of all kinds of energy, especially renewable energy, to achieve interconnection and common optimization. Based on the background of distribution network in Disney Park, this paper studies the regulation, operation and management strategy of distribution network of smart city energy Internet. This paper describes the characteristics of the energy Internet, and then analyzes the key technologies that affect power grid regulation, operation and management. The paper investigated the distribution network construction in Shanghai Disney Park under the background of urban energy Internet pilot region to understand the allocation of distributed energy in the park grid. Through simulation calculation and analysis, this paper puts forward a distribution network regulation and management scheme suitable for the characteristics of energy Internet. In this paper, the study found that with the rapid development of power grid, especially all kinds of distributed energy access, the new lines are becoming more. In a wide range of power grid structure is becoming more and more complex, in order to ensure the reliability of power supply and power supply quality, scientific regulation under the background of urban energy Internet development mode, enhancing the management level of power grid is the inevitable developing trend of power grid.

Research on the Development Potential Evaluation of Urban Energy Internet

With the depletion of fossil energy and the enhancement of environmental awareness, how to develop distributed resources orderly and reasonably has become a hot issue in the construction of new generation power system. Combined with the high-speed development of Internet communication technology and information processing technology, the construction of urban energy Internet in urban areas has become one of the most important construction contents of new generation power system in the future. This paper mainly evaluates the development potentials of urban energy Internet in urban areas, and establishes the evaluation index of the development potentials of urban energy Internet. Moreover, as an example, the development potentials of urban energy Internet in Suzhou, Guangzhou, Ningbo and Qingdao are evaluated.

Analysis of typical characteristics and main functions of urban energy internet under city energy reformation

The construction of urban energy internet is an important starting point for realizing the national energy revolution strategy and promoting the high-quality development of city energy. At present, the research on urban energy internet is extensively carried out, and the definition of urban energy internet is also varied. This article summarizes the current mainstream views, summarizes and refines the structure, features, and main functions of the urban energy internet. Through combing the structure, features, and main functions, it enriches and improves the theoretical basis of the urban energy internet model and other research.

Market Trading Model of Urban Energy Internet Based on Tripartite Game Theory

As an important driving force to promote the energy revolution, the emergence of the energy internet has provided new ideas for the marketization and flexibility of multi-energy transactions. How to realize multi-energy joint trading is a key issue in the development of the energy market. An urban energy internet market trading model among energy suppliers, energy service providers and the large users in the urban area, based on tripartite game theory, is established in this paper. Considering the cost–income function of each market entity and the basic market trading mechanism, a new game-tree search method is proposed to solve the Nash equilibria for the game model. The Nash equilibria of the tripartite game can be obtained, and the market transaction status corresponding to the Nash equilibria is analyzed from the perspective of the market transactions. The multi-energy joint transaction and market equilibria can be easily implemented for the bids and offers of the multiple energy entities in the urban energy internet market.

Research on Evaluation Index System of Urban Energy Internet Development

At present, urban energy development faces problems such as energy resources shortage, low utilization efficiency and serious environmental pollution. The urban energy Internet is considered to be an effective means to solve urban problems. In order to effectively evaluate the development of urban energy Internet, this paper has established a detailed evaluation index system from four aspects: clean and low carbon, safe and efficient, flexible and intelligent, and open sharing of urban energy development, and given some data of foreign developed countries. reference. The evaluation indicator system can be used as a pre-guided and evaluation indicator for urban energy Internet development planning.

“Five Targets” management strategy of formulating international standards for energy enterprises

There are many problems in energy enterprises, such as insufficient understanding of internationalization, serious shortage of international talents, unthorough investigation of the rules of international standards organization, and inadequate transformation of existing achievements into standards, which seriously restrict the development of international standardization. The article relies on the research on management strategy of the State Grid Shanghai Electricity Research Institute, and proposes a “Five Targets” international standardized formulation system, which develops the closed-loop value chain of platform operation, professional focus, processed management, refined control, and industrialization development. The chain drives the implementation of the world’s leading strategy of energy enterprises, builds an international technology standard ecosystem, enhances the international influence and global competitiveness of energy enterprises, and opens up new areas and new prospects for building a world’s leading urban energy internet enterprise with Chinese characteristics.

Research on Multi-Energy Coordinated Intelligent Management Technology of Urban Power Grid Under the Environment of Energy Internet

Integrated energy systems (IES) are an important physical carrier of the energy Internet, which undertakes the tasks of energy conversion, distribution, and storage of electricity, heat and cold. From the perspective of energy Internet, this paper studies the optimal operation scheduling of an urban power grid with a high proportion of clean energy and proposes a multi-energy coordinated intelligent management method for the urban power grid. Firstly, the structure and typical characteristics of urban energy Internet are researched. On this basis, the regulatory capacity of the adjustable generator set and the regenerative equipment is used to offset the volatility of renewable energy, the internal operating system, and network stable operation constraints are considered. To solve the model, alternating direction method of multipliers (ADMM) is used. Finally, a real-time power grid example is given to verify the effectiveness of the proposed method.

Comparison and Quantification Analysis Method of Urban Energy Consumption Features from Perspective of Urban Energy Interconnection

Growing severity of the environment pollution and urban energy exhaustion cause the proposal of the concept called “Urban Energy Internet”, which adapts to the idea of sustainable urban development. The paper, based on the consumption sector of urban energy, proposed the quantitative comparison and analysis system facing the urban energy consumption feature from perspective of Urban Energy Internet. The system can make the comparison and quantification analysis of the urban energy consumption features comprehensively from the perspective of economy, security, environmental protection and convenience. The comprehensive comparison and quantification analysis results can reflect the feature and advantages of each type of urban energy consumption and help seeking the optimal way of using the urban energy. The method proposed can improve the efficiency of urban energy consumption, reduce the environment pollutions, and promote the energy consumption consciousness of China to speed up the transformation of energy consumption pattern in China.

Research on Development Strategy of Urban Power Grid Based on Energy Internet Construction

This paper mainly describes the content of the construction of the demonstration area, from the energy supply / consumption form, bearing the main carrier transporting the energy, decision management and public services and other aspects and energy Internet application framework model is constructed, supports a wide range of power flow of AC / DC active distribution network, hierarchical partitioning of the distributed intelligent control management and open public service mode is described in detail in the paper, discusses the overall strategic planning of the urban energy Internet.