Direct torque control of interior permanent-magnet synchronous motors is known to deliver fast torque and flux dynamic responses. However, the poor flux estimation at very low speeds has been its ...

The new I/O module controls stepper motors with Modbus/TCP, Ethernet/IP or PROFINET interface to host PC, PLC or PAC.

Conventional modular multilevel converter (MMC) has severe limitation to operate at low frequency for the application of variable-speed induction motor drive. Fluctuation of submodule (SM) capacitor ...