Title :
Real-time, dynamic control of dynamic power filters in supplies with high contamination
Author :
Enslin, J.H.R. ; van Harmelen, G.L.
Author_Institution :
Dept. of Electr. Eng., Pretoria Univ., South Africa
Abstract :
A real-time closed loop controller system used for controlling dynamic power filters under rapidly varying nonlinear loading condition is tested and evaluated. With the aid of a dedicated microprocessor system using correlation algorithms, real-time reference signals for a dynamic compensation system are generated. In order to facilitate a cost-effective compensation system, separate compensation of the fundamental reactive power component and the harmonic components is further investigated. A total algorithm time of 312 mu s in a 50 Hz system is achieved, providing accurate compensation effort up to the 21 power system harmonic.<>
Keywords :
closed loop systems; compensation; computerised control; low-pass filters; microcomputer applications; power convertors; power electronics; power engineering computing; real-time systems; 50 Hz; compensation system; correlation algorithms; dedicated microprocessor system; dynamic power filters; harmonies; nonlinear loading; power convertors; reactive power; real-time closed loop controller system; real-time reference signals; Control systems; Microprocessors; Nonlinear control systems; Nonlinear dynamical systems; Power filters; Power supplies; Power system harmonics; Real time systems; Signal generators; System testing;
Conference_Titel :
Power Electronics Specialists Conference, 1990. PESC '90 Record., 21st Annual IEEE
Conference_Location :
San Antonio, TX, USA
DOI :
10.1109/PESC.1990.131282
