基于plc的火電廠鍋爐控制系統(tǒng)設(shè)計(jì)畢業(yè)設(shè)計(jì)說明書

1、 內(nèi)蒙古科技大學(xué)本科生畢業(yè)設(shè)計(jì)說明書（畢業(yè)論文）題 目：基于 PLC 的火電廠鍋爐控制系統(tǒng)設(shè)計(jì)學(xué)生姓名： 學(xué) 號(hào)：0967112311專 業(yè)：測(cè)控技術(shù)與儀器班 級(jí)：測(cè)控 09-3 班指導(dǎo)教師： 內(nèi)蒙古科技大學(xué)畢業(yè)設(shè)計(jì)說明書（畢業(yè)論文）IIIThe Boiler Control System of Thermal Power Plant Based on PLCAbstractThe boiler of therm

2、al power plant is the necessary power equipment during the industrial production, boiler system security, stability and efficient operation of power plants is an important task. But boiler thermal efficiency is low; the

3、coal quality is not stable, exhaust temperature is higher, so the boiler process control is an important research field of thermal power plant boiler control using PLC.Through the analysis of the furnace temperature, fur

4、nace pressure, drum level and superheater temperature, the design takes PLC as controller, and uses PID algorithm, completes programming through STEP7 - Micro/WIN ladder diagram. the temperature cascade control scheme, t

5、he pressure feedforward—feedback control scheme and the ratio control scheme of the furnace are designed , three impulses control scheme of the drum level and cascade control scheme of superheater are designed too, final

6、ly each control system can be run automatically . The interactive interface is designed using the King view software, finally using a password to land is achieved, screen can show ceaselessly, data report preview, print,

7、 save, refresh and transferred to the query is completed ,the curve and alarm screen etc can be updated timely. Finally boiler control system can achieve security, stability and efficient operation.Keywords : Boiler ；PLC