Title :
Digital control of HVDC converters
Author :
Pilotto, L.A.S. ; Roitman, M. ; Alves, J.E.R.
Author_Institution :
Centro de Pesquisas de Energia Electrica, Rio de Janeiro, Brazil
fDate :
5/1/1989 12:00:00 AM
Abstract :
A description is provided of a completely digital HVDC converter controller based on a 16 bit microcomputer. The design comprises software programmed functions such as a proportional-integral-derivative current control amplifier, voltage-dependent current-order limiters and an alpha-minimum symmetrization unit, among others. HVDC control principles are briefly reviewed, and a detailed description of both the hardware and software structure of the controller is presented. The digital controller was implemented in an HVDC simulator, and several dynamic performance tests demonstrated the efficiency of the approach
Keywords :
digital control; electric current control; microcomputer applications; power convertors; three-term control; HVDC converters; HVDC simulator; PID control; alpha-minimum symmetrization unit; current control amplifier; digital controller; dynamic performance tests; hardware; software; software programmed functions; voltage-dependent current-order limiters; Bridge circuits; Control systems; Current control; Digital control; HVDC transmission; Hardware; Power system harmonics; Rectifiers; Voltage control; Voltage-controlled oscillators;
Journal_Title :
Power Systems, IEEE Transactions on
