Search for dissertations about: "electrical power system protection"
Showing result 1 - 5 of 65 swedish dissertations containing the words electrical power system protection.
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1. On power quality and protection
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2. Line protection and Power System Collapse
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3. Power System Oscillations - Detection, Estimation and Control
Abstract : The topic of this thesis is the electro-mechanical oscillations which to some extent always are present in a power system. The demand of electric power is ever increasing. At the same time, the tolerance of disruptions in the power supply is decreasing. READ MORE
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4. Steady State Operation and Control of Power Distribution Systems in the Presence of Distributed Generation
Abstract : In this thesis, the impact of distributed generation (DG) on steady state operation and control of power distribution systems is investigated. Over the last few years, a number of factors have led to an increased interest in DG schemes. DG is gaining more and more attention worldwide as an alternative to large-scale central generating stations. READ MORE
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5. Differential Protection for Arbitrary Three-Phase Power Transformers
Abstract : This thesis describes how to provide standardized, current based, differential protection for any three-phase power transformer, including phase-shifting transformers with variable phase angle shift and transformers of all construction types and internal on-load tap-changer configurations. The use of standard transformer differential protection for such applications is considered impossible in the protective relaying standards and practices currently applied. READ MORE