Mott MacDonald

About: Mott MacDonald is a company organization based out in London, United Kingdom. It is known for research contribution in the topics: Electric power system & Wind power. The organization has 586 authors who have published 529 publications receiving 9801 citations. The organization is also known as: Mott MacDonald Group & MMD.

Expansion planning of distribution networks by heuristic algorithms

Abstract: The existing distribution networks are growing with complexity more and more, due to the gradual increase of power demand and variation of loads. This paper describes several heuristic algorithms applied to the optimal configuration of loop distribution network. Configuration problems are too complicated and time consumed to be solved. These problems are basically large-scaled combinatorial optimization problems, because an urban distribution system is usually large in scale and contain numerous sectionalizing switches to be operated. It is, therefore, difficult to rapidly obtain an exact optimal solution on real system.

Consideration of healthy MV busbar feeders in the service restoration of distribution networks

Abstract: The service restoration application for severe power outages involving the consideration of the healthy medium voltage (MV) busbar feeders of the HV/MV substation in de-energised area is presented in this paper. The MV busbar feeders consideration is achieved by introducing additional coefficient to the heuristic graph-based service restoration algorithm. Minimisation of unsupplied load is the primary objective of the proposed service restoration application. Secondary objective is the reduction of the number of switching actions. The proposed approach involves the assignment of the weighting coefficients de-energised distribution network branches. The consideration of the healthy MV busbars feeders significantly improves the service restoration algorithm performance.

Winter monitoring of damaged bridges: learning from the December 2015 floods in Cumbria, UK

Abstract: The December 2015 storms resulted in unprecedented damage to bridges in Northern England, UK. In Cumbria, the inspection of lower-priority structures was then delayed by continuing high water level...

Estimating and Mapping the Costs of Congestion in a Metropolitan Area

Abstract: Please click here to download the map associated with this article. Congestion has a severe impact on the economic success of urban areas and the quality of life of its citizens. Dependent on the definition used to measure congestion and the exact urban area under consideration, the estimated costs of congestion are around several hundreds of pounds per person per year. These costs are averages and for individuals and business could be substantially higher. These are not just interesting statistics—a wider awareness of these economic losses enables planning authorities to generate support for demand management measures that otherwise would not be politically palatable. Further, maps that help present and support these estimations of congestion costs, identifying location and severity, help to inform decision-makers. The use of modern transport modelling techniques and emerging databases of journey times across the day now allow advanced mapping techniques to display this complex and multidimensio...