Analyzing network connectivity conditions of an island capable household size solar power system

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Supervisor:
Prikler László
Department of Electric Power Engineering

With the spread of household size solar power systems, inverter producing companies improve their devices’ knowledge with more and more functions in the hope that they can increase their market share. These newer functions open new dimensions in the field of decentralised energy production. Nowadays anybody can easily access to device setups made for solar power systems, and with them it is possible to maximize the local consumption of the energy which produced by their own photovoltaic systems, ensure the household’s uninterruptible power supply and can feed the energy programmed/controlled way into the public network.

Within the confines of an R&D project, GE Hungary Ltd. wants to implement an intelligent lighting system which - completed with a PV power system and batteries- are able to gratify the illuminators power demand even in the case of a breakdown. Thanks to the planning, the annual amount of the produced energy is more than the consumption of the lighting system, hence it opens the door to analyze the feed-in control strategies.

In my thesis, I demonstrate the operation of the pilot project’s solar system, then examine the major questions of its connection to the electrical grid, and its potential role in the public distribution system. Furthermore, I also present the technological requirements of island operation, and the essentials that should be taken into consideration when choosing between batteries. Finally, using laboratory measurment’s data, I also examine the system’s competency operating in the public electrical network.

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