372 Electrotechnical Systems
6.7 FACTS SIMULATION
The problems with improving the quality of the transmitted electric energy are
always the center of attention for the electrical power engineering. As the main
indicators of the electrical energy quality, the following are considered: the volt-
age deviation from the nominal value at the receiving line end or/and along line,
the voltage frequency deviation in the line from the accepted value, the content of
the higher harmonics in the line voltage and current, and the relative value of the
transmitted reactive power. Most part of the steps have to decrease the values of
these indicators. The wanted characteristics should be held not only in the steady
states but also in transients (abrupt load ...