| 摘要 |
PROBLEM TO BE SOLVED: To combine the enhancement of controllability in pulse current superposition control, and the suppression of switching loss and overheating, in a dynamo-electric machine control system.SOLUTION: A dynamo-electric machine control system 10 includes a dynamo-electric machine 12, and a controller 46 for controlling the dynamo-electric machine 12. The controller 46 has an inverter signal generation unit 52 for generating an inverter switching signal in response to a current command and a carrier of a predetermined waveform, a pulse current superposition unit 48 for superposing a pulse current on the current command, and a carrier frequency setting unit 50 for setting a carrier frequency. When superposing a pulse current on the current command, the carrier frequency setting unit 50 sets the carrier frequency higher than that when not superposing a pulse current. |
