Abstract
Because electrical power system parameters are frequently
mixed with noise, AC distribution systems have recently
encountered high harmonic pollution. The perfect AC
power system should have a constant frequency at a
certain voltage, but due to connected nonlinear loads, nonsinusoidal
active source injection into the grid, and other
factors, both the current and voltage waveforms are
significantly distorted today. As a result, other systemconnected
equipment
has been impacted. This has raised
system losses. If these impacts cannot be completely
eliminated, then it is necessary to mitigate them, which is
why the Kalman filter was proposed. In the area of
electrical power discipline, especially in harmonic
estimation, it has been very helpful. It has also found use
in power system dynamics, optimal motor control and
operation, relay operation and protection, and precise
forecasting of short- and medium-term electrical demand.
In this essay, the importance of the Ka