method for driving a permanent magnet synchronous machine, and permanent magnet synchronous machine.

摘要

In order to achieve the energy efficiency class of class ie4 defined in iec 60034, it is necessary to operate permanent magnet synchronous machines directly from the supply system. Since this is not easily possible, soft starters are considered as cost-effective solutions. The power increase problem without transmitter can be divided into two component problems: determining the initial rotor angle and starting the machine. The present invention describes a non-transmitter starting method with which the engine can be started using a soft starter.