The Research Of Explosion-proof Integrated Controller Of Softly-starts Based On The ADμC841 Micro Controller Unit

Among modern industry controlled field , exchange motor soft to start , it controls to be pieces of important subject for research very, directed against QJR by it- 400/ 1140( 660) Ore and concurrently essence safe type exchange motor soft instructions for use of starter with through produce, develop based on ADμC841 one-chip computer explosion-proof soft to start control device come as QJR soft control core of starter. This soft starter has already been examined through the national-level monitoring center smoothly at the same time, its achievement is appraised through measuring and established for scientific technological achievement and new high-tech product of Henan Province in Henan Province.This text has deepened and studied QJR based on that ADμC841 one-chip computer controls systematically- 400/ 1140( 660) Ore and concurrently essence safe type exchange motor soft control device of starter with through produce, the main content is as follows:To the development of the soft starter of explosion-proof of the mine , have analyzed theoretically that exchanges the starting course of the asynchronous motor, electrical machinery short circuit , broken looks , overload in not operating ,etc. common electric characteristic of trouble and protect the principle. Propose adopting pair and closing the ring PID regulator, control starting the course softly of the electrical machinery through the way that rotational speed and electric current form one pair of rings of closing to control, have offered the theoretical foundation for the fact that the explosion-proof starts the control device to study softly.Simple ore, QJR of exposition, and concurrently essence safe type exchange motor soft main operation principle of starter with through produce, have put forward the choice that design plan , brilliant floodgate of the main circuit are in charge of, anti-blast structural design, so as to ensure the requirement of foot GB3836- 2000 , MT/T943- 2005.Regard ADμC841 one-chip computer as the central control module, design a new kind of and start the control device intelligently and low-voltagly and softly. This device can be finished starting in the slope of voltage of the electrical machinery, the limit flows and starts softly, the torque controls the soft electric leakage locking , shorting out , overload , excessive pressure , owing pressing while starting and working, the...