This paper highlights some aspects of the many facets of electricity distribution system risk assessment – describing the different risk consequence categories which are relevant in the whole risk picture with regards to their characteristics, their type of impact and applicable risk analysis methods. The paper illustrates that distribution system asset management constitutes of a variety of mo...

A resilient electricity infrastructure is one which preserves continuity of service despite perturbations in its environment, if it fails, it does so gracefully, not catastrophically. Electricity infrastructures globally are undergoing a low-carbon transition with a yet-to-be defined endpoint. What will be the impact of these transitions on network resilience? How can we steer them to foster re...

in this paper, simultaneous placement of distributed generation, capacitor bank and protective devices are utilized to improve the efficiency of the distribution network. the objectives of the problem are reduction of active and reactive power losses, improvement of voltage profile and reliability indices and increasing distribution companies’ profit. the combination of firefly algorithm, parti...

The maintenance of the high voltage electricity transmission network in England and Wales (the National Grid) is planned so as to minimise costs taking into account: location and size of demand for electricity, generator capacities and availabilities, electricity carrying capacity of the remainder of the network, i.e. that part not undergoing maintenance, resilience of the network to faults (co...

This paper analyses the evolution of electricity prices in deregulated market. I formulate a model that takes into account the spatial features of a network of a market. The model is applied to equilibrium electricity spot prices of the PJM market. An empirical analysis indicates that the problem of unobserved spatial correlation in the network can be modeled by the Spatial Error Model providin...

Power system losses can be divided into two categories: technical losses and non-technical losses. Technical losses are naturally occurring losses (caused by actions internal to the power system) and consist mainly of power dissipation in electrical system components such as transmission lines, power transformers, measurement systems, etc. Technical losses result from the impedance of the netwo...

This paper designs a reliability distribution network with limited capacity under partial and complete facility disruptions. To increase the reliability of the distribution network, a new mixed integer linear programing model is developed by considering multiple mitigation strategies including diversification, fortification, and transshipment. The distribution network constitutes of reliable di...

Development of every society is incumbent upon energy sector’s technological and economic effectiveness. The electricity industry is a growing and needs to have a better performance to effectively cover the demand. The industry requires a balance between cost and efficiency through careful design and planning. In this paper, a two-stage stochastic programming model is presented for the design o...

Static voltage stability is considered as one of the main issues for primary identification before voltage collapsing in distribution systems. Although, the optimum siting of distributed generation resources in distribution electricity network can play a significant role in voltage stability improving and losses reduction, the high penetration level of them can lead to reduction in the improvem...