SU-E-J-102: Separation of Metabolic Supply and Demand: From Power Grid Economics to Cancer Metabolism

2014 ◽  
Vol 41 (6Part8) ◽  
pp. 179-179
Author(s):  
T Epstein ◽  
L Xu ◽  
R Gillies ◽  
R Gatenby
Keyword(s):  
Cancer Metabolism ◽  
Power Grid ◽  
Supply And Demand ◽  
Grid Economics

Energy Storage System and Its Power Electronic Interface

2020 ◽  
pp. 309-321
Author(s):  
Baseem Khan ◽  
Samuel Degarege ◽  
Fsaha Mebrahtu ◽  
Hassan Alhelou
Keyword(s):  
Energy Storage ◽  
Electronic Device ◽  
Performance Indicator ◽  
Power Grid ◽  
Supply And Demand ◽  
Storage System ◽  
Cost Effective ◽  
Energy Storage System ◽  
Power Electronic ◽  
System Energy

This chapter examines the modeling and simulation of energy storage (battery, flywheel, etc.) systems interfaced to the power grid by using power electronic device, like chopper module, Rectifier module, and filter circuits, which are essential to the load balance between supply and demand, and to eliminate harmonics and to ensure efficient, cost effective, and reliable operations. Energy storage system in power grid is the same as memory in computer system. Energy efficiency is a key performance indicator for energy storage system. The energy storage system is the most promising component to enhance the system reliability and flexibility.

Energy Storage System and Its Power Electronic Interface

2022 ◽  
pp. 183-195
Author(s):  
Baseem Khan ◽  
Samuel Degarege ◽  
Fsaha Mebrahtu ◽  
Hassan Alhelou
Keyword(s):  
Energy Storage ◽  
Electronic Device ◽  
Performance Indicator ◽  
Power Grid ◽  
Supply And Demand ◽  
Storage System ◽  
Cost Effective ◽  
Energy Storage System ◽  
Power Electronic ◽  
System Energy

This chapter examines the modeling and simulation of energy storage (battery, flywheel, etc.) systems interfaced to the power grid by using power electronic device, like chopper module, Rectifier module, and filter circuits, which are essential to the load balance between supply and demand, and to eliminate harmonics and to ensure efficient, cost effective, and reliable operations. Energy storage system in power grid is the same as memory in computer system. Energy efficiency is a key performance indicator for energy storage system. The energy storage system is the most promising component to enhance the system reliability and flexibility.

scholarly journals Energy, Environmental and Economic Performance of an Urban Community Hybrid Distributed Energy System

Energies ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2545 ◽  
Author(s):  
Alberto Fichera ◽  
Elisa Marrasso ◽  
Maurizio Sasso ◽  
Rosaria Volpe
Keyword(s):  
Carbon Dioxide Emissions ◽  
Urban Community ◽  
Power Grid ◽  
Supply And Demand ◽  
Energy Systems ◽  
Energy System ◽  
Distributed Energy ◽  
General Validity ◽  
Economic Point ◽  
Distributed Energy System

Energy systems face great challenges from both the supply and demand sides. Strong efforts have been devoted to investigate technological solutions aiming at overcoming the problems of fossil fuel depletion and the environmental issues due to the carbon emissions. Hybrid (activated by both renewables and fossil fuels) distributed energy systems can be considered a very effective and promising technology to replace traditional centralized energy systems. As a most peculiar characteristic, they reduce the use of fossil sources and transmission and distribution losses along the main power grid and contribute to electric peak shaving and partial-loads losses reduction. As a direct consequence, the transition from centralized towards hybrid decentralized energy systems leads to a new role for citizens, shifting from a passive energy consumer to active prosumers able to produce energy and distribute energy. Such a complex system needs to be carefully modelled to account for the energy interactions with prosumers, local microgrids and main grids. Thus, the aim of this paper is to investigate the performance of a hybrid distributed energy system serving an urban community and modelled within the framework of agent-based theory. The model is of general validity and estimates (i) the layout of the links along which electricity is distributed among agents in the local microgrid, (ii) electricity exchanged among agents and (iii) electricity exported to the main power grid or imported from it. A scenario analysis has been conducted at varying the distance of connection among prosumers, the installed capacity in the area and the usage of links. The distributed energy system has been compared to a centralized energy system in which the electricity requests of the urban community are satisfied by taking electricity from the main grid. The comparison analysis is carried out from an energy, environmental and economic point of view by evaluating the primary energy saving, avoided carbon dioxide emissions and the simple payback period indices.

Reactive Power Control Strategy of Demand Side Back-to-Back Converter Based on VSM

2020 ◽  
Vol 13 (8) ◽  
pp. 1242-1255
Author(s):  
Xiao Lyu ◽  
Gang Ma
Keyword(s):  
Power Control ◽  
Control Strategy ◽  
Reactive Power ◽  
Power Grid ◽  
Supply And Demand ◽  
Control Model ◽  
Demand Side ◽  
Control Loop ◽  
Reactive Power Control ◽  
Side Load

Background: The Demand Side Management (DSM) technology is playing an increasingly important role in the power system, in order to promote the real-time supply and demand balance of the power grid and improve the economy and safety of the power grid. Objective: To realize the flexible and continuous reactive power control of demand side load, a reactive power control strategy for the demand side back-to-back converter (DS-B2BC) is proposed. Methods: First, DS-B2BC is proposed. Then, the reactive power control model of DS-B2BC and its control loop are designed, and the reactive power control model, based on the Virtual Synchronous Motor (VSM), is established. Results: The simulation results verify that the reactive power control strategy proposed in this paper is effective, which can control the demand side load reactive power flexibly and continuously. Conclusion: Moreover, the strategy can counteract the disturbance from the power grid simultaneously.

scholarly journals Open data base analysis of scaling and spatio-temporal properties of power grid frequencies

2020 ◽  
Author(s):  
Leonardo Gorjão ◽  
Richard Jumar ◽  
Heiko Maass ◽  
Veit Hagenmeyer ◽  
G. Cigdem Yalcin ◽  
...  
Keyword(s):  
Power Systems ◽  
Data Base ◽  
Large Scale ◽  
Scaling Laws ◽  
Power Grid ◽  
Supply And Demand ◽  
Scaling Law ◽  
Open Data ◽  
Electrical Energy ◽  
Energy System

Abstract The electrical energy system has attracted much attention from an increasingly diverse research community. Many theoretical predictions have been made, from scaling laws of fluctuations to propagation velocities of disturbances. However, to validate any theory, empirical data from large-scale power systems are necessary but are rarely shared openly. Here, we analyse an open data base of measurements of electric power grid frequencies across 17 locations in 12 synchronous areas on three continents. The power grid frequency is of particular interest, as it indicates the balance of supply and demand and carries information on deterministic, stochastic, and control influences. We perform a broad analysis of the recorded data, compare different synchronous areas and validate a previously conjectured scaling law. Furthermore, we show how fluctuations change from local independent oscillations to a homogeneous bulk behaviour. Overall, the presented open data base and analyses may constitute a step towards more shared, collaborative energy research.

scholarly journals Research on Multi-scene and Multi-station Fusion Mode Based on Layered Theory of Energy Internet

2022 ◽  
Vol 2148 (1) ◽  
pp. 012006
Author(s):  
Xiaoliang Yang ◽  
Honggang Zhao ◽  
Hongyuan Ren
Keyword(s):  
Development Strategy ◽  
Energy Flow ◽  
Power Grid ◽  
Supply And Demand ◽  
National Development ◽  
Planning System ◽  
Energy Internet ◽  
The Core ◽  
Flow Convergence ◽  
Fusion Mode

Abstract Multi-station integration is a new form of business in the development of energy Internet and a brand new practice of power iot. It is an innovative form that strengthens the interaction between charge and storage of source network on both sides of energy supply and demand, and enhances the flexibility of power grid by taking substation, energy storage station, distributed energy station and other resources as the core. However, there is not a set of construction mode that can guide implementation, copy and popularize. Therefore, guided by the existing construction practice of multi-station fusion in China and combined with multi-user scenarios, this paper studies the multi-station fusion mode, proposes a multi-station fusion planning system based on EIST theory, gives the fusion mode under different business scenarios, and synchronously constructs a new ecological business chain with multi-station fusion as the core. It aims to make full use of the innate advantages of substation in energy flow convergence, realize the “integration of energy flow, business flow and data flow”, comprehensively support the transformation of digital power grid, and practice the national development strategy of “digital economy” and “digital China”.

Design of Interactive Intelligent Family Utilization System in Smart Grid

2013 ◽  
Vol 756-759 ◽  
pp. 4471-4475
Author(s):  
Xu Sheng Liu ◽  
Ying He ◽  
Fu Chun Zhang ◽  
Guang Hua Yan ◽  
Run Ze Wu
Keyword(s):  
Smart Grid ◽  
Power Flow ◽  
Quality Of Experience ◽  
Power Grid ◽  
Supply And Demand ◽  
System Construction ◽  
Client Software ◽  
Flow Information ◽  
Business Flow

Intelligent power utilization is an important part in the construction of smart grid, its outstanding characteristic is interaction between power grid and demand side. Based on the demand of family intelligent power utilization, this paper analyzes the significance of bilateral interaction system construction, proposes the design scheme of interactive family intelligent power utilization system to satisfy the users various and individual demands, designs intelligent display client software. The system integrating power flow, information flow and business flow is established in order to support new power supply and demand relationship between grid and users and ensure the QoE (Quality of Experience) and optimize the configuration of assets of power grid.

Sign in / Sign up

Export Citation Format

Share Document