This paper has presented test results made on a fuel cell hybrid electric PMS motor drive with high frequency DC-DC converter, with the aim of simulating it in real-time on RT-LAB. Accuracy tests have shown the importance of precise IGBT gate timing capture for accurate simulation. An important result is that the DC-DC converter inductance current characteristic becomes accurate and linear with time stamping technique whereas it is completely inaccurate without time stamps. The linearity characteristic is important for real-time simulation and control considerations. This is quite impressive in fact if one considers that 10 kHz corresponds to 100 micro s, just 10 times the sample time. The same can be said about the PMSM inverter that becomes inaccurate when time stamping is not used. The real-time simulation of a realistic fuel cell hybrid electric vehicle circuit consisting on fuel-cell, battery, DC-DC converter and 3 permanent magnet motor drive, with a sufficient number of I/O for real controllers, was made on the RT-LAB platform at a step size of 30 micro s on a dual-Xeon computer clocked at 2.8 GHz. Opal-RT expects this number to go under 15 ?s before the end of the year 2004.
Real-time simulation of fuel cell hybrid electric vehicles
Echtzeitsimulation für hybride Elektrofahrzeuge mit Brennstoffzelle
2004
7 Seiten, 9 Bilder, 10 Quellen
Aufsatz (Konferenz)
Englisch
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