Development of a Microprocessor Control System for a Multi-Motor Asynchronous Electric Drive of a Trolley Travel Mechanism

Most of the technological processes in modern industrial production are realized with the help of mechanical energy, which is most conveniently obtained by means of an electric drive. In the metallurgical, machine-tool and other industries, it is advisable to use a multi-motor asynchronous electric drive for general industrial mechanisms such as overhead cranes (trolley movement mechanism), conveyors, rolling mills, taking into account technological requirements and operating modes. This requires the use of more sophisticated control methods for electromechanical systems, since two or more electric motors must work in concert for a single load. This, in turn, entails the use of a new element base, power and control, which makes it possible to implement these technological work cycles. The constant development of technology places increased demands on the electric drive regarding the accuracy of movement, both in statics and dynamics, speed and reliability. At the present stage, all these requirements can be achieved using specialized high-speed microprocessors as the basis of a control system for a twin-motor asynchronous electric drive, which opens up wide opportunities for creating technically advanced adjustable drives. At the same time, due to the intensive development of electronics and semiconductor technology, it is necessary to reduce the cost of electric drive control systems.