Calculating the reactive power using the Kramers-Kronig relations
Q. De Kloet · Research Repository (Delft University of Technology) · 2014
There different methods to calculate the reactive power of a system. However, all of them are based on measuring values for one case and then calculating the reactive power for that single case. With the use of the Kramers-Kronig relations there's a way more efficient method to calculate the reactive power. When actually knowing the active power formula of a system it would be possible to get the exact formula of the reactive power. A more interesting method is; to use a finite number of active power measurements to approximate the reactive power on the whole measurement domain. For these measurements you don't need advanced measurement equipment, just a simple watt meter.