Essays about: "relative damping"
Showing result 1 - 5 of 12 essays containing the words relative damping.
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1. The role of location of low inertia in power systems
University essay from Uppsala universitet/Institutionen för elektroteknikAbstract : The plans to reduce the energy-related greenhouse gas emissions stimulate the deployment of electronically interfaced renewable resources. The increased penetration of such intermittent sources together with phasing conventional power plants out and the installation of High Voltage Direct Current (HVDC) links for long-distance more efficient transmission, reduces the stored inertia in any electrical grid. READ MORE
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2. Dynamic Torque Modeling of a Wet Lamella Clutch Pack
University essay from Lunds universitet/Industriell elektroteknik och automationAbstract : Wet lamella clutches are used in the automotive industry to enable all-wheel drive and thereby increase acceleration, handling and safety of cars. The clutches work by transmitting torque from an incoming- to an outgoing shaft through a series of lamella - steel-disc friction surfaces (lamella pack), lubricated by an oil. READ MORE
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3. The Dissipating Energy Flow method for analysing generator contribution to power system damping -- evaluation and interpretation
University essay from Lunds universitet/Industriell elektroteknik och automationAbstract : Electromechanical oscillations is a power system phenomenon where generator rotors oscillate, leading to oscillatory power flows. Damping of such oscillations is important for system stability. Forced oscillations is a special case where one faulty component is the source of the oscillation. READ MORE
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4. Finite Element Analysis of the Dynamic Effect of Soil-Structure Interaction of Portal Frame Bridges - A Parametric Study
University essay from KTH/Bro- och stålbyggnadAbstract : In Sweden, the railway sector currently faces the challenge of developing its first high-speed railway line, in response to the need to provide faster domestic and international transport alternatives. High-speed train passages on railway bridges can cause resonance in the bridge superstructure, which induce high accelerations that should not exceed the limits stipulated in the current design code. READ MORE
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5. Numerical simulations of the power supply to a tidal compensation system for wave energy converters
University essay from Uppsala universitet/ElektricitetsläraAbstract : A wave energy converter (WEC) has been developed at the Division of Electricity at Uppsala University. The Uppsala WEC is a point absorber consisting of a buoy on the surface and a linear generator situated on the sea floor. READ MORE