An object of the present invention is to realize high-performance motor driving control by detecting DC currents to reproduce AC currents with high accuracy in an electric power converter in which a plurality of inverters are connected to a motor either independently or in parallel. The present invention is characterized in that a predetermined current detection period in which a first current detection section detects a DC current of a first inverter is controlled in such a manner that the predetermined current detection period does not overlap at least timing of changing over between on-timing and off-timing of a switching element that configures a second inverter. More preferably, the predetermined current detection period in which the first current detection section detects the DC current of the first inverter is controlled in such a manner that the predetermined current detection period does not overlap periods in which a current is carried to the second current detection section.
Electric Power Converter and Electric Power Steering Apparatus Mounting Same
2018-07-12
Patent
Electronic Resource
English
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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