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Modern installations have become sensitive to power quality (PQ) related problems because more sophisticated devices with non-linear operating characteristics are often used there. On the contrary, most of these devices produce emissions that could decrease the PQ level of the network. It is becoming an increasing problem for the network operators to maintain good voltage quality because of the interactions...
Given the nature of electricity, every party connected to the power system influences voltage quality, which means that every party also should meet requirements. In this field, a sound coordination among technical standards (system-related, installation-related and product-related) is of paramount importance. Further, characteristics of currents (e.g. inrush currents, harmonic currents) should be...
Electricity as a commodity should satisfy strict quality requirements. In the last two decades, the customer's urge for good quality of power supply has increased due to the use of more sensitive electronic devices which on the other hand might influence the electricity network too. At present, no definite responsibility with respect to power quality (PQ) aspects at the point of connection (POC) is...
Electricity, as a commercialised commodity, has gained greater importance in the last two decades. The customers use more sensitive and sophisticated electronic devices which demand a reliable high quality power supply. On the contrary, these devices produce distortions in the power supply due to their nonlinear characteristics. In this paper, a comprehensive survey on power quality (PQ) related problems,...
Due to the liberalized energy market distributed generation, DG, is increasing. At this moment, most of the power produced by DG, is generated by CHP-plants and variable speed wind turbines. Integration of wind turbines have impact on several aspects of power systems such as power system stability, protection and power quality. This paper focusses on the effect of wind farms on power quality phenomena...
Measurements during the last eight years show an increasing level of PIt, an indicator used for the flicker level. Furthermore, almost 50% of all technical customer complaints are flicker problems. The short-circuit power on the connection point is a very important parameter for controlling the fast voltage variations that lead to flicker. However, a high short circuit level can not be established...
Due to the increase of distributed generators (DG) in the public grid some parts, with high penetration of DGs, could be transformed into an autonomously operating micro grid. This paper will show how the grid of an existing Holyday park can be changed into an autonomous micro grid. An additional control system as well as additional storage systems and power electronics have to be implemented in order...
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