electrical network model Articles
-
Nodal prices in an integrated energy system
This paper presents a multiperiod generalised network flow model used to analyse the economic interdependencies of integrated energy systems comprising the electric network and the various fuel supply and delivery systems in a medium term operational time frame. By using a network flow programming model, one can take advantage of much faster solution procedures than standard linear programming ...
-
The strategic activities of electricity network operators within changing electricity distribution industry
The electricity network business is facing new challenges due to deregulation and market changes, customer requirements, while at the same time current service markets are advancing. New, optimised business models are required to support the development of business processes, and there is a need to determine the core businesses for electrical utilities in order to know the direction into which ...
-
Modelling interdependent infrastructures using interacting dynamical models
We investigate the consequence of failures, occurring on the electrical grid, on a telecommunication network. We have focused on the Italian electrical transmission network and the backbone of the internet network for research (GARR). Electrical network has been simulated using the DC power flow method; data traffic on GARR by a model of the TCP/IP basic features. The status of GARR nodes has ...
-
Artificial neural network based models for forecasting electricity generation of grid connected solar PV power plant
This paper presents an artificial neural network (ANN) approach for forecasting the performance of electric energy generated output from a working 25-kWp grid connected solar PV system and a 100-kWp grid connected PV system installed at Minicoy Island of Union Territory of Lakshadweep Islands. The ANN interpolates among the solar PV generation output and relevant parameters such as solar ...
-
Repair strategies for minimising the risk of cascading failures in electricity networks
In this work, we develop repair strategies for simplified models of electric power grids. The goal is to gain insight into the combinatorial properties of repair problems in order to improve maintenance and restoration planning. Firstly, we consider a seriously damaged grid and try to find the set of lines that should be repaired first in order to resupply the customers as fast as possible. We ...
-
Modelling of the hydro-generator local network operation and load disturbance rejection
The paper describes models of the local network operation of the hydraulic turbine-generator unit. Two different models are proposed. They describe the dynamic behaviour of a system in which the unit is connected to an equivalent system. A nonlinear model of the interconnection to an equivalent power system is considered. An optimal controller for load disturbance rejection in water turbine speed ...
-
A GIS-based regional energy-environment policy model
This paper describes a regional energy-environment modelling approach that explicitly takes into account the spatial distribution of production and demand activities, with their associated emissions. Indeed, some of the information used at a regional level has a spatial representation (e.g. district heating, electricity grid, natural gas network, traffic, public transport, etc.). We have defined ...
-
Development of linear models of Static Var Compensators suitable for enhancing performance of power systems including wind farms
In this work, the design of fixed-gain Proportional?Integral?Derivative (PID) controllers with multiple stage lead-lag compensators are investigated for improving further the dynamic impact of Static Var Compensators (SVCs). The analysis is based on the linearisation of the power system under study and the proper shift of critical eigenvalues, associated with the SVC and electric network, to the ...
-
Reciprocally altruistic agents for the mitigation of cascading failures in power grids
Cascading failures in electrical power networks often come with disastrous consequences. A variety of schemes for mitigating cascading failures exist, but the vast majority depend upon centralised control architectures. Centralised designs are frequently more susceptible to communications latency and bandwidth limitations and can be vulnerable to random failures and directed attacks. This paper ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you