Title :
Modelling and control of a cycloconverter with permanent magnet generator
Author :
Hofmeester, N.H.M. ; Polinder, H. ; Offringa, L.J.J. ; van den Bosch, P.P.J.
Author_Institution :
Delft Univ. of Technol., Netherlands
Abstract :
A 6-pulse noncirculating current cycloconverter is used as frequency changer for a high-frequency permanent magnet generator. A high-efficiency, high-speed gas turbine in the power range of 250 kW to 870 kW, drives the generator-converter unit. This system is intended for use in total energy systems or hybrid systems in vehicles and high speed vessels. The cycloconverter is designed for three-phase 833 Hz to 50 Hz applications. A new vector-control like digital control strategy and a special discrete Fourier filter (DFT), intended for use with a one-phase version of the cycloconverter, are described. Both are implemented in a multi-processor digital controller used for feedback control and pulse-pattern generation. Simulation results and measurements of a laboratory one-phase version of the converter and a dummy-generator, using this digital control strategy and DFT, are given
Keywords :
controllers; cycloconvertors; digital control; electric generators; feedback; machine control; permanent magnet machines; power engineering computing; 250 to 870 kW; 50 Hz; 6-pulse noncirculating current cycloconverter; 833 Hz; cycloconverter; digital control strategy; feedback control; frequency changer; high speed vessels; high-efficiency; high-frequency; high-speed gas turbine; multi-processor digital controller; permanent magnet generator; pulse-pattern generation; special discrete Fourier filter; three-phase; total energy systems; vector-control; vehicles;
Conference_Titel :
Power Electronics and Applications, 1993., Fifth European Conference on
Conference_Location :
Brighton
