Title :
Development of Active Filters with Spiral Vector Theory
Author_Institution :
Electr. Corp., Tokyo
Abstract :
The paper develops active filters according to spiral vector theory that has a definition of instantaneous reactive power in single-phase networks. At first, the paper obtains rms active and reactive power with integral method and shows that they are the same in a steady state condition and in a transient state condition, then it obtains the system voltage with least square method and the system current that has a sinusoidal waveform. The harmonic currents are equal to the load current minus the system current and it used as the output of an active filter.
Keywords :
active filters; least squares approximations; power filters; reactive power; active filters; instantaneous reactive power; integral method; least square method; single-phase networks; sinusoidal waveform; spiral vector theory; steady state condition; transient state condition; Active filters; Circuits; Frequency; Least squares methods; Power harmonic filters; Power system harmonics; Reactive power; Spirals; Steady-state; Voltage; active filters; instantaneous active and reactive power; rms active and reactive power; spiral vector theory;
Conference_Titel :
Power Conversion Conference - Nagoya, 2007. PCC '07
Conference_Location :
Nagoya
Print_ISBN :
1-4244-0843-1
Electronic_ISBN :
1-4244-0844-X
DOI :
10.1109/PCCON.2007.373017
