Ultracap-based solutions for ride-through of synchronous machine drives

System and method for a multi-phase snubber circuit

Motor control apparatus and method

Method and apparatus for controlling of 3-phase AC motor

System, method and apparatus for computing, monitoring, measuring, optimizing and allocating power and energy for a rod pumping system

Vehicle with electrical machine and method for operating the same

Electric power assembly for a vehicle

Method for controlling a permanently excited synchronous motor

Electric ratchet for a powered screwdriver

Electric power control system and efficiency optimization process for polyphase synchronous machine

Portable service controller for electro-mechanical actuators

Method and device for controlling an electric motor propulsion unit with decoupled controls

Rotor Control

Modular Power Conversion System

Hybrid Motor

Applied-voltage electrical angle setting method for synchronous motor, and motor control device

Winding synchronous machine having a moving object including an inverter circuit, and method for controlling same

Energy storage device for a separately excited electrical machine

Electric power control system and efficiency optimization process for a polyphase synchronous machine

Synchronous machine with switching element in the excitation circuit

Method and apparatus for control of a synchronous permanent magnet motor, particularly over a long cable in a well

System, method and apparatus for computing, monitoring, measuring, optimizing and allocating power and energy for a rod pumping system

Method and system of limiting current to a motor

Motor operation failure detection

Pitch drive device for a wind power or hydroelectric power station

Electric motor system

System and method of generating external parameter value for separately excited motor controller

Direct current motor with independently driven and switchable stators

Offset angle determination for synchronous machines