Essays about: "Frekvensberoende Last"
Found 3 essays containing the words Frekvensberoende Last.
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1. Evaluation of key performance indices for frequency quality : A method for evaluating frequency stability in the Nordic power system
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : The Nordic power system is in a changing phase, with more power electronic interfaced connections, and HVDC connections to other synchronous areas, which impacts the frequency quality. This is a challenge for the transmission system operator of Sweden, Svenska Kraftnät, who, with the other Nordic transmission system operators, is responsible for the physical balancing of the Nordic power system. READ MORE
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2. The Impact on System Inertia and Frequency From High Penetration of Renewable Energy
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : For the last couple of years, there has been an upsurge in investment in renewable energy. Whenincreasing the share of renewables in the energy mix numerous conditions have to be considered.Wind and solar power are not synchronously connected to the power grid, with the consequencethat they do not contribute to the inertia in the power system. READ MORE
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3. Towards a method for antenna impedance tailoring through shapeoptimization, with a bound on the associated cost-function
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Over the last years, there has been an interest in designing antennas that operateat higher frequencies. In most applications, these antennas work jointly withPower Amplifiers. However, most commercial Power Amplifiers have a nonstandardoptimal load-pull impedance in their optimal operating frequencies. READ MORE
