This paper presents a new heuristic algorithm useful for long-term planning of survivable WDM networks. A multi-period model is formulated that combines network topology design and capacity expansion. The ability to determine network expansion schedules of this type becomes increasingly important to the telecommunications industry and to its customers. The solution technique consists of a Genet...

A rise in the rate of population growth leads to higher demand rates for electric power consumption. Therefore, it is necessary that electrical energy generation, transmission and distribution system be planned an optimized way, order provide excellent service consumer reduce costs supply transmission. For this, location load balancing each substation extremely important systems. The problem ca...

According to the conclusions of the study “Smart Portugal 2020”, the Information and Communication Technologies (ICT) can contribute to a reduction of 15% in our ecological footprint. The role of innovation and the early adoption of solutions that could reduce consumption in all economical sectors will be vital to the 20/20/20 European Strategy [1]. Active network management for generation, sto...

Artificial Neural Networks (ANNs) have been successfully applied to the problem of forecasting future load values, especially in the short term framework (a few minutes to a few hours ahead). Traditional analytical models have shown difficulties when dealing with (i) the highly variable demand curve shapes, (ii) some independent variables that exhibit random behaviour, and (iii) the identificat...

In this paper, the author describes a case study of a large substation integration design project. The project involves complete integration and automation of distribution and transmission within the substation. The critical design factors that the customer required are discussed, followed by system designs presented to the customer. The author steps through the project with the aid of lessons ...

When a power utility considers the introduction of a new component in their substation, it is primarily faced with costs. Each proposed investment must be defended facing the management. In the simplest situation a new component with higher performance will just be substituted for an older one. In this case the existing methodologies are sufficient to assess the economic impact of the investmen...

Successful operation of entire power system depends to a considerable extent on efficient and satisfactory performance of substations. Hence substations in general can be considered as heart of overall power system. In any substation, a well designed grounding plays an important role. Since absence of safe and effective grounding system can result in mal-operation or non-operation of control an...

Received Apr 11, 2017 Revised Apr 28, 2017 Accepted Jun 17, 2017 This paper presents a novel smart local backup protection SLBP used for the support and backup of the protective relays in a smart substation. The proposed SLBP is based on the IEC61850 standards and the concept consists of the acquisition of Generic Object Oriented Substation Event GOOSE used for tripping and interlocks exchange ...

In this paper, an efficient neural network based estimation technique has been studied to estimate the magnetic field strength near any power substation, and to assess the possible exposure to electromagnetic radiation received by the residents living near that substation. The measurement and the estimation were carried out in close proximity to different high powered equipment at four differen...

This paper presents an optimization model and its application to a generation expansion planning problem. The proposed model has a generalized network structure and is exploited effectively by Benders’ decomposition algorithm, where a master problem generates trial expansion plans and a set of subproblems compute production cost and system reliability for the trial plan. The applicability of ou...