Search for dissertations about: "voltage sags"
Showing result 1 - 5 of 10 swedish dissertations containing the words voltage sags.
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1. Voltage sags characterisation and estimation
Abstract : .... READ MORE
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2. Power Electronics for Mitigation of Voltage Sags and Improved Control of AC Power Systems
Abstract : The thesis deals with the application of compensators andswitches based on power electronics in AC transmission anddistribution systems. The objective of the studieddevices/equipment is the power flow and voltage control intransmission systems and the mitigation of voltage sags andmomentary interruptions to critical loads in distributionsystems. READ MORE
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3. Voltage Dip (Sag) Estimation in Power Systems based on Stochastic Assessment and Optimal Monitoring
Abstract : This dissertation deals with the statistical characterization of the performance of power systems in terms of voltage dips (sags). It presents a method named voltage dip estimation that extends monitoring results to buses not being monitored. READ MORE
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4. Voltage Sags: Single event characterisation, system performance and source location
Abstract : This thesis deals with one of the most important disturbances that affect the quality of the electrical supply. Voltage sags cause industrial processes malfunction, producing an enormous economical impact. A voltage sag is defined as a short duration reduction of the rms voltage. READ MORE
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5. On impacts and ride-through of voltage sags exposing line-operated AC-machines and metal processes
Abstract : During the last decade, power quality has been recognised asa global problem. Among different types of power qualityproblems, voltage sags have been identified to be one of themost severe problems for different process industries. The mostcommon reason to voltage sags is lightning strikes in powerlines. READ MORE