Control Electronics for Med Austron Power Converters WP

Control Electronics for Med. Austron Power Converters WP PO 04/10/2011 1 Ph. Fraboulet – WP PO Control

Last main achievements • Analogue acquisition interface tests (High Precision ADCs) o DC noise: <10 ppm peak-peak (1. 7 ppm RMS) o Linearity: better than 10 ppm o More tests must be done, on more cards, to get more precise/stable figures (especially for linearity) • Current/Field control (RST control algorithm) o “Technology transfer” from Dr. Veenstra o Core of the algorithm implemented in the DSP o Test on a load simulator – It works !!! • !!! CRB and FED worked together !!! o Hardware validation o UHPI : Host Port Interface o I/O communication 04/10/2011 2 Ph. Fraboulet – WP PO Control

Next steps • Interface definition between CRB and FED • CRB implementation to test the CRB driver in the PCC • SW requirements for the CRB – Architecture design • XML definition files for CRB • XML definition files for family A PCO 04/10/2011 3 Ph. Fraboulet – WP PO Control

RST Algorithm – the principle • RST = a way of implementing a digital control algorithm • Very generic. A PID controller can be implemented as a very simple case • Uses a predictive model (feed forward) • Compensate for o the “noise” of the system o the error of the model (static and dynamic) • We must know the system as well as possible to get the best performance 04/10/2011 4 Ph. Fraboulet – WP PO Control

RST Algorithm – the recipe 04/10/2011 5 Ph. Fraboulet – WP PO Control

RST Algorithm – the result • Simulated load: o L = 4 m. H o R = 40 mΩ • Rate: 2 k. Hz (could run @ 50 k. Hz) • Results very close to simulation = o the model is good o the implementation is correct 04/10/2011 6 Ph. Fraboulet – WP PO Control

Questions ? 04/10/2011 7 Ph. Fraboulet – WP PO Control