Comprehensive evaluation of regional energy internet using a fuzzy analytic hierarchy process based on cloud model: A case in China

We consider the economic dispatch (ED) for an Energy Internet composed of energy routers (ERs), interconnected microgrids, and main grid The microgrid consists of several bus nodes associated with distributed generators (DGs) and intelligent control units (ICUs) We propose a distributed ED algorithm for the grid-connected microgrid, where each ICU iterates the estimated electricity price of the distribution system and the estimation for the average power mismatch of the whole microgrid by leader-following and average-consensus algorithms, respectively The ER iterates the incremental power exchanged with the distribution system By constructing an auxiliary consensus system, we prove that if the communication topology of the Energy Internet contains a spanning tree with the ER as the root and there is a path from each ICU to the ER, then the estimated electricity price of the distribution system converges to its real value, the power supply and demand achieves balance and the ED achieves optimal asymptotically Furthermore, we propose an autonomous distributed ED algorithm covering both grid-connected and isolated modes of the microgrid by feeding back the estimated average power mismatch for updating the incremental costs with penalty factor It is proved that if the communication topology of the microgrid is connected and there exists an ICU bidirectionally neighboring the ER, then the microgrid can switch between the two modes reliably The simulation results demonstrate the effectiveness of the proposed algorithms

Distributed Economic Dispatch for Energy Internet Based on Multiagent Consensus Control

To improve the economic benefits of power systems in the process of achieving multi-energy complementation and decarbonization, this paper proposes a dispatching optimization model for virtual power plants (VPP) that considers carbon trading and green certificates. Firstly, the structure of the VPP system integrating wind and solar generators (WP and PV), power-to-gas (P2G), carbon capture power plants (CCPP) and price-based demand response (PBDR) is established. Secondly, the two-way interactive trading models among the VPP, carbon trading and green certification market are constructed. Then, the dispatching optimization model of the VPP is constructed. Finally, the numerical example is solved and analyzed by the chaotic particle swarm optimization algorithm, which verifies the rationality and effectiveness of the new model. The results show that: (1) when the VPP considers the CCPP-P2G, the cost of the system is reduced by USD 2550.48, while the CO2 emissions are reduced by nearly 50%; (2) the addition of PBDR reduces the CO2 emissions of the thermal power unit, which has reduced the cost of carbon tax by nearly 27.8%, further reducing the cost of the VPP; (3) the introduction of the carbon trading and green certificate market has reduced the operating cost of the VPP by nearly 22.24%.

Low-Carbon Economic Dispatch Based on a CCPP-P2G Virtual Power Plant Considering Carbon Trading and Green Certificates

In recent years, primary energy consumption in China’s urban areas has increased rapidly, facing the problems of extensive use of energy, high energy consumption and insufficient intensified use of energy resources. Improving multienergy supply, increasing the proportion of clean energy and integrated energy efficiency are the main goals of urban development. The integrated energy system with multi-functional synergy and open trading will become one of the new directions for the development of new urban energy systems. This paper summarizes the main problems faced by the current towns and the characteristics of the new urban energy system, analyzes the development of new urban energy system from three aspects including energy interconnection hub infrastructure construction, energy management platform construction and energy value sharing, and forecasts the future development direction of new urban energy systems.

Prospects for key technologies of new-type urban integrated energy system

Energy Internet is a new hot topic in the research of industry and academia at home and abroad. It is also the development direction of the energy industry, and it is possible to innovate the way of human life. The paper summarized the concept and connotation by surveying the domestic and international development of the Internet of Energy. The information technology architecture of the Internet of Energy is reviewed from the perspective of the integration of energy system and information technology. This article described the characteristics of power line carrier communication, and analyzed the role and status of power line carrier communication technology in the Internet of Energy. The challenges and opportunities that power line carrier communication faces in the Internet of Energy are analyzed. In the end, this paper discussed the future development of Internet of Energy. Through the “Internet +”technology though, it will integrate advanced information technology and energy systems, coordinate multi-energy networks, innovate energy system operation modes, promote industrial upgrading, and generate new economic growth points.

Power Line Communication Challenges in the Energy Internet

The Energy Internet is a new energy ecosystem based on electricity with high penetration of renewable energy, high synergy of multiple energy types, high synergy of energy value chains from supply to demand and from planning to operation, and high participation of stakeholders. In this paper, we discuss the background and significance, basic connotation, dynamic development, current domestic and foreign status, scientific issues, and future development of the Energy Internet. The Energy Internet is based on the fusion of Internet Thinking, advanced information technology, energy industry, synergistic energy network, cyber-physical energy system, and innovative energy business models. It supports the energy revolution in achieving green, coordinated, and efficient development and drives the economic growth.

Development status and prospects of the Energy Internet}{Development status and prospects of the Energy Internet

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Development status and prospects of the Energy Internet}{Development status and prospects of the Energy Internet