The Control System of the Cylindrical Linear AC Electronic Motor of the Actuating Mechanism

Abstract

The paper discusses the research of the cylindrical linear AC electronic motor control system for the actuating mechanism of direct material application. The design of a linear electric motor is considered. A functional control scheme of a rotary linear valve motor is presented. The basic parameters and equations necessary for use in the motor control algorithm are considered. The control of the CLEM module is carried out using a converter in the frequency range (0.5 ÷ 6) Hz to obtain the necessary high-speed motion of the actuating mechanism. The motor control is based on a PC. The software is implemented in C + in the Microsoft Visual Studio 2010 environment and is focused on use on an industrial or personal computer. The personal computer is connected to the frequency converter via a cable communication line of the RS-485 standard (using the RS-485 / USB interface converter) based on the ModBus protocol. Experimental researches of the electro-drive module of the CLEM have shown that the developed system allows to operate in the required speed range within (0.03-0.36) m/s. At the same time, the movement of the secondary element in one direction is 1.2 m, and the number of binary moves varies from 0.75 to 9 per minute. The nominal force of the CLEM module is 400 kN. Algorithm of control tested on experimental installation. The system fully satisfies the characteristics of the technical task.