Title :
Developing an active filter based on least square method
Author_Institution :
Mitsubishi Electr. Corp., Kobe, Japan
Abstract :
The paper first achieves the real frequency with the power system voltage by using a novel frequency measuring method that is based symmetry principles. Then, it is proposed to obtain the power system current with least square method. At last, the harmonic current is acquired as the load current minus calculated sinusoidal waveform and it is used as the output of an active filter. The numerical simulation shows the new method is effective.
Keywords :
active filters; frequency measurement; least squares approximations; power filters; active filter; frequency measuring method; harmonic current; least square method; power system voltage; Active filters; Frequency measurement; Least squares methods; Numerical simulation; Power harmonic filters; Power measurement; Power system harmonics; Power system measurements; Power system simulation; Voltage; active filters; frequency measurement; least square method; symmetry principles;
Conference_Titel :
Power Electronics Conference (IPEC), 2010 International
Conference_Location :
Sapporo
Print_ISBN :
978-1-4244-5394-8
DOI :
10.1109/IPEC.2010.5543856
