Improving Power Quality in Electrical Networks

The power supply sector has seen many changes over the past two decades, including a shift from energy production by large power stations with high-performance synchronous generators to a predominantly decentralised supply network. This has led to a significant increase in decentralised generation plants with lower output capacities and, for the most part, power electronics-controlled feeds. The result of this development on the generating side are changes to the „internal technical values“ of transmission and distribution grids. Grid impedances are increasing, which means that loads are having a greater negative impact on grid voltages.

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