Power Grids Articles

  • Understanding Static Frequency Converter

    Static frequency converter means that's no rotary parts inside it - also called solid state - the definition is relative to rotary frequency converter which is using an electric motor to output adjustable frequency. Static frequency converter is changing fixed grid power through AC to DC to AC by inner electronic parts and components, the multifunctional inverter converts the mains (50 Hertz or ...


    By Frequency Converter

  • Context–independent centrality measures underestimate the vulnerability of power grids

    Power grids vulnerability is a key issue in society. A component failure may trigger cascades of failures across the grid and lead to a large blackout. Within complex network analysis, structural vulnerabilities of power grids have been studied mostly using purely topological approaches, which assumes that flow of power is dictated by shortest paths. However, this fails to capture the real flow ...


    By Inderscience Publishers

  • Correlating empirical data and extended topological measures in power grid networks

    Power grids are considered complex networks. Their structure and dynamics have been thoroughly studied and many topological measures have been used to classify them, evaluate their behaviour or model their response to malfunctions. Results have been theoretical and correlations between real dynamical behaviour (i.e., major events) and structural measures have not yet been found. New electrically ...


    By Inderscience Publishers

  • Knowing power grids and understanding complexity science

    Complex networks theory has been well established as a useful framework for studying and analysing structure, dynamics and evolution of many complex systems. Infrastructural and man–made systems like power grids, gas and water networks and the internet, have been also included in this network framework, albeit sometimes ignoring the huge historical body of knowledge surrounding them. Although ...


    By Inderscience Publishers

  • Cascade failures and distributed generation in power grids

    Power grids are nowadays experiencing a transformation due to the introduction of distributed generation based on renewable sources. At difference with classical distributed generation, where local power sources mitigate anomalous user consumption peaks, renewable sources introduce in the grid intrinsically erratic power inputs. By introducing a simple schematic (but realistic) model for power ...


    By Inderscience Publishers

  • Women @ Energy: Emilie Hogan

    Dr. Emilie Hogan is a Computational Mathematics Scientist in the Computational Mathematics group at PNNL. She graduated from Rutgers University in May 2011 with a doctorate in Mathematics. Her PhD research was in creating an algorithm to prove global asymptotic stability of rational difference equations. Her current research is in applications of discrete mathematics to cybersecurity, power grid, ...


    By US Department of Energy

  • Avoiding the Power Grid with Renewable Energy

    For approximately one hundred years, thriving countries have been dependent on only one form of distributing power; electricity sent over large transmission grids from plants generating electricity, to customers in businesses, homes, and factories.  Generators extract energy from rooftop solar panels, garbage, and sewage, which replace or assist coal, nuclear, and natural gas plants. A ...


    By Greenshine New Energy LLC

  • Market power monitoring under open access system

    In this paper, an engineering procedure is proposed for complete market power monitoring under open access system. Market power monitoring of any given system or network is done by using market power assessment and market power indices. For any given network, market power assessment is to identify which generation company (GENCO) raised their prices when the demand in the concerned area is ...


    By Inderscience Publishers

  • Grid Connection An open letter to those on grid considering pursuing hydro power

    Many people contact us concerning the possibility of using a power source that is either connected to the commercial power grid or feeding power to a house that is. While this may be possible, it is not likely to make economic sense. Over 99% of our customers are off-grid and there are reasons for this. The question is then more like: ’Can I put in a small hydro system or should I spend ...

  • 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 ...


    By Inderscience Publishers

  • Security, trust, and QoS in next-generation control and communication for large power systems

    The present communication architecture supporting control of the electric power grid makes it difficult to use the wealth of data collected at high rates in substations, retarding their use in new applications for controlling the grid. A flexible, real-time data network would make it possible to use these data for many more control and protection applications, potentially increasing the grid's ...


    By Inderscience Publishers

  • Potential benefits of and barriers to inter-country power grid connections in Northeast Asia

    The current state and prospects of the power industry in Northeast Asia (NEA) are outlined. The potential benefits from power system interconnection in the region, in particular capacity saving, decreasing electricity production costs and tariffs, reliability improvement and environmental effect are considered. Specific estimates of the benefits for the region are given. Barriers to power system ...


    By Inderscience Publishers

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you