Title :
Adaptive signal processing based control of active power filters
Author :
Fukuda, Shoji ; Sugawa, Shun-ichi
Author_Institution :
Hokkaido Univ., Sapporo, Japan
Abstract :
The paper proposes a simple and practical method for improving the performance of DSP-controlled active power filters (AF). The transfer function of a DSP-controlled AF has a phase-lag property because there is calculation time delay in the control output, which causes a serious deterioration in the AF performance. In the proposed system, an adaptive digital filter (ADF) operates as a series compensator and compensates for the time-lag property of AF. The ADF requires no additional hardware, but for only a slight additional software. It was confirmed by simulation and experimental results that simple two-tap ADF is very effective for improving the AF compensation performance
Keywords :
active filters; adaptive control; adaptive filters; adaptive signal processing; compensation; digital filters; high-pass filters; power filters; power system control; power system harmonics; reactive power; transfer functions; DSP-controlled active power filters; active power filters control; adaptive digital filter; adaptive signal processing; calculation time delay; compensation performance; control output; harmonics compensation; high pass filter; phase-lag property; reactive power compensation; series compensator; simulation; time-lag property; transfer function; Active filters; Adaptive signal processing; Control systems; Digital filters; Feedforward systems; Hardware; Power harmonic filters; Power system harmonics; Process control; Transfer functions;
Conference_Titel :
Industry Applications Conference, 1996. Thirty-First IAS Annual Meeting, IAS '96., Conference Record of the 1996 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-3544-9
DOI :
10.1109/IAS.1996.560188
