全面腐蚀控制
全麵腐蝕控製
전면부식공제
TOTAL CORROSION CONTROL
2015年
2期
46-49
,共4页
C8051F020%油井套管%脉冲电流%阴极保护
C8051F020%油井套管%脈遲電流%陰極保護
C8051F020%유정투관%맥충전류%음겁보호
C8051F020%well casing%pulsed current%cathodic protection
采用普通直流型恒电位仪无法达到套管实际的保护深度，存在油井套管阴极保护不全面的问题，本文介绍一种油井套管阴极保护专用脉冲恒电位电源，该电源以二次逆变主电路结构形式，并采用8051MCUF020为主控核心单元，运用锁相环倍频采样保证采样精度，采用PID策略实现闭环控制，研制出的样机具有功能完善，脉冲参数可调，运行稳定可靠等特点。
採用普通直流型恆電位儀無法達到套管實際的保護深度，存在油井套管陰極保護不全麵的問題，本文介紹一種油井套管陰極保護專用脈遲恆電位電源，該電源以二次逆變主電路結構形式，併採用8051MCUF020為主控覈心單元，運用鎖相環倍頻採樣保證採樣精度，採用PID策略實現閉環控製，研製齣的樣機具有功能完善，脈遲參數可調，運行穩定可靠等特點。
채용보통직류형항전위의무법체도투관실제적보호심도，존재유정투관음겁보호불전면적문제，본문개소일충유정투관음겁보호전용맥충항전위전원，해전원이이차역변주전로결구형식，병채용8051MCUF020위주공핵심단원，운용쇄상배배빈채양보증채양정도，채용PID책략실현폐배공제，연제출적양궤구유공능완선，맥충삼수가조，운행은정가고등특점。
Using ordinary DC-based potentiostat can not achieve real protection depth of well casing, as a result,this cathiod protection is not comprehensive.This paper presents a special pulse cathodic protection system of well casing using power supply, based on the core unit of 8051MCUF020, the power supply use the second inverter form as main circuit structure, and use phase-locked loop frequency multiplier to ensure the accuracy of the sampling, use PID closed-loop method as control strategy.The prototype has perfect functional, adjustable pulse parameters, stable and reliable.
