| Abstract |
The three-level-principle is attractive also for voltage source inverters with transistors, aiming at loss reduction in high speed induction machines. If high control performance is demanded, space vector control becomes desirable, and the task becomes time critical. A new method is implemented with a signal processor Tl TMS32010 and experimentally verified with a transistor inverter, with base frequency 400 Hz, 12-step operation up to 800 Hz and a smooth transition into the 12-step range. Further features are angle control in this range and the possibility to handle also variable direct voltage in the base speed range. |
