Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
While there has been significant prior research on optimizing the energy-efficiency of parallel applications, there has been much less on optimizing them for green energy sources, which expose rapid changes in power's availability (or cost) due to the use of local renewable energy (or utility demand response programs). In this paper, we present energy management policies that utilize active and inactive...
When properly operated, microgrids can facilitate the integration of stochastic renewable energy without compromising service reliability. However, in the context of multi-stage dispatching, finding the optimal day-ahead energy procurement that accounts for the variability of real-time operation is a computationally challenging task. This paper develops a computationally efficient two-stage economic...
Imbalance settlement markets are managed by the system operators and provide a mechanism for settling the inevitable discrepancies between contractual agreements and physical delivery. In European power markets, settlements schemes are mainly based on heuristic penalties. These arrangements have disadvantages: First, they do not provide transparency about the cost of the reserve capacity that the...
In this paper, an optimal power flow problem is formulated in order to minimize the total operation cost by considering real-time pricing in DC microgrids. Each generation resource in the system, including the utility grid, is modeled in terms of operation cost, which combines the cost-efficiency of the system with the demand response requirements of the utility. By considering the primary (local)...
This paper presents comparative performance evaluation of conventional SRF-PLL, existing adaptive notch filter (ANF) and an amplitude adaptive notch filter (AANF) based synchronization techniques used for converter-interfaced renewable energy systems. In addition, real time implementation and extraction of frequency and amplitude of the input grid voltage signal by all the three techniques has been...
Time-shiftable loads, also known as deferrable loads, such as charging of electric vehicles, washing machines, dryers, are able to provide scheduling flexibility for demand response. This can help to reduce the energy cost under the condition of dynamic electricity pricing. It can also facilitate deeper integration of renewable generation by absorbing variability. According to the environmental conditions...
An optimal control strategy devoted to manage the daily charging/discharging profiles of Energy Storage Systems (ESSs) is described in the present paper. The proposed approach aims to minimize Microgrids (MGs) daily electricity costs considering both the real-time price evolution and the effects of intermittent Renewable Energy Sources (RESs). Referring to MGs and electricity market modeling as well...
Demand Response programs influence the end-user electricity usage by changing its cost along the time. In this scenario, to better manage the building's energy demand and consequently the electricity related costs, the user needs to estimate the energy demand and on-site production of the building in function of the electrical devices that are present on the building boundary. This paper presents...
In the future smart grid, a large amount of renewable energy resources will be installed in both utility side and customer side. How to manage the variance of amount of power generation and manage them correctly would be most important issue for the future electric power system and energy management. Information infrastructure will be key factor for resolving the issue for the reason to process a...
The proposed operating modes for hydrogen production from renewable energy sources are presented in this work. The designed system is put together to support the investigation of energy requiremnts in a prelimnary focus on residential application. The sensory components of the controller observe, in real time, the incoming energy changes and compare it with the system demand and level of stored energy...
This paper develops an integrated traffic-power control algorithm based on a previously proposed cellular networks study. A real-time battery bank state of charge (SOC) estimation technique is introduced using predicted renewable energy. The proposed approach allows the cellular networks system to be more resilient by increasing power supply availability and reducing the excessive discharges which...
In order to improve the utilization of renewable energy in power system, it is needed to address the power fluctuation problem caused by grid interconnection of renewable energy power generation. A real-time dispatch method of energy storage station to smooth active power fluctuation is proposed in this paper. The real-time dispatch strategy is designed to smooth active power difference fluctuation...
Nowadays, energy production/distribution moves from the conventional, centralised operational framework towards more distributed/decentralised models. Such a distributed/decentralised framework for future smart energy networks based on the optimal formation of virtual micro-grids (VMGs) has been developed in the context of the VIMSEN (Virtual Microgrids for Smart Energy Networks) research project...
Smart grid is a concept by which the existing electrical grid infrastructure is being upgraded with integration of multiple technologies such as, two-way power flow, two-way communication, automated sensors, advanced automated controls and forecasting system. Smart grid enables interaction between the consumer and utility which allow the optimal usage of energy based on environmental, price preferences...
Recently, equipping the base stations (BSs) with renewable energy harvesters for green communications has been considered as a promising technique to benefit both the environment and the retailer. However, the uneven distribution of renewable energy generation and the drastically increasing demand for mobile data has put forward the new challenge for the retailer. To tackle this problem, we propose...
With enormously increasing demand for mobile data and high data rates, the aggregated power requirements by user terminals may exceed the amount of power budget at the remote radio heads (RRHs). Hence, the retailer has to purchase additional energy from the real-time market, i.e., the grid, and may take a risk of losing the profit. To address the aforementioned issue, this paper studies the real-time...
The problem of integrating renewable generation in a distribution network is considered under two integration models: a centralized utility-based model in which the utility owns and operates the renewable generation as part of its portfolio of energy resources, and a decentralized consumer-based model in which each consumer owns and operates the renewable generation and is allowed to sell surplus...
This paper presents a real time strategy for optimal power flow in presence of storage devices and wind turbine driven by Doubly Fed Induction Generators. These elements work in cooperation defining a dynamic bus where the generated power is subject to temporal constraints, which establish a coupling between traditional power flow problems related to consecutive time periods; further the uncertainty...
This paper deals with the very short time predictive control of a hybrid microgrid (μG). The hybrid μG is characterized by the presence of two sections operating in alternating current (AC) and in direct current (DC), respectively. The proposed very short time predictive control is based on an optimal strategy focused on the coordination of loads and energy resources and aimed at minimizing the cost...
The increasing penetration of distributed energy resources (DERs) in the distribution grid, in combination with the liberalization of the electricity markets, introduces small-scale electricity producers in a market architecture designed for large-scale power plants. This work examines a double-auction electricity market for a residential area, designed to facilitate the electricity exchange between...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.