Енергетика та системи керування (EPECS-2011). – 2011 р.

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Матеріали IIІ Міжнародної конференції молодих вчених EPECS-2011

У збірнику опубліковано матеріали конференції, присвяченої проблемам у галузі енергетики. Видання призначено для науковців, аспірантів, студентів.

Енергетика та системи керування : матеріали IIІ Міжнародної конференції молодих вчених EPECS-2011, 24–26 листопада 2011 року, Україна, Львів / Міністерство освіти і науки, молоді та спорту України, Національний університет "Львівська політехніка". – Львів : Видавництво Львівської політехніки, 2011. – 139 с. – (3-й Міжнародний молодіжний фестиваль науки "Litteris et Artibus"). – Паралельний титульний аркуш англійською.

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Author: search.filters.author.Dhingra, Arvind

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    Various concerns regarding monitoring& measurement of power quality problems
    (Видавництво Львівської політехніки, 2011) Singh, Tejinder; Dhingra, Arvind
    Power quality has been catching the attention of researchers worldwide. With the advent of more and more semiconductor based equipments, the power quality standards have been re-written. There are many causes of power quality problems, voltage sags/swells, harmonics, fast impulses or subcycle impulses, neutral to ground high frequency noise etc. Some of these occur very frequently and cause problems and others (such as 1 nanosecond or 0.5 nanosecond impulses) either occur very rarely or cause problems rarely. It is important to evaluate power quality level and identify the source of faults that origin electrical disturbances in electrical power systems, which determines the responsibility of a bad quality of power. In order to evaluate and identify the disturbances and its origin, power quality monitoring is the tool that utilities and customers can use. This paper attempts to review the power quality issues including ways of monitoring power quality and also the effect of harmonics on power quality.
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    Energy saving using energy auditing techniques – a case study for a steel power plant
    (Видавництво Львівської політехніки, 2011) Singh, Tejinder; Dhingra, Arvind
    An industry is the major commercial energy consuming sector in India, where electrical energy is the most common and widely used type of energy. As the demand and price of energy are increasing day by day. Therefore, the subject of energy conservation is a concern for most energy users particularly industry. Judicious use of energy becomes imperative for third world developing country being presence of energy crisis. This paper provides some measure for energy saving that can be commonly recommended for a rolling unit of steel industry. A case of hot rolling unit in JSL Stainless Ltd., Hisar for energy conservation is given. Overall improvement in energy consumption in light of the stated recommendation is illustrated along with the proposed utilization of the techniques and their applications. Energy conservation in conventional motor with replacement or use of star delta star converter, reduction in cable losses, replacement of filament of LED lamps, replacement of conventional transformer with cast resin dry type transformer and provision of energy management system for energy conservation and per unit production cost reduction are elaborated in this paper.