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Design and Research of Fuel Treatment System in Gas Turbine Power Plant Based on PLC Technology

Author: ZhuJiFeng
Tutor: FangGeFei；LinGang
School: Zhejiang University
Course: Electrical Engineering
Keywords: Programmable Logic Controller Siemens S7-400 Gas Turbine Oil treatment PID
CLC: TP273.5
Type: Master's thesis
Year: 2009
Downloads: 66
Quote: 0
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Abstract


As a general industrial control computer , programmable logic controller functions to achieve progress to the digital control logic control , its application fields cover the simple control of a single device is becoming a mainstream control devices for industrial control , of the World Development great contribution. The original author of a gas turbine power plant fuel processing production line Siemens S5 controller spare versatility , has been discontinued and procurement difficulties , unable to state with the logic of the program of equipment monitoring and maintenance . Original system large-scale , complex process , different control modes , operation or continuation of the inspection and the artificial hard hand operation way , resulting in the waste of human resources , oil treatment also can not guarantee the timely and reliable operation of the gas turbine power plant The fuel system is posing a great threat . Heavy enough to make the gas turbine in case processing cut light oil combustion , will greatly increase the cost of power generation , if the light oil is not enough will be forced to shutdown affect the power grid safety . This thesis focuses on the situation of the above equipment , comparing the three options transform , Siemens S7-400 PLC technology upgrade designed to solve fuel oil processing production line control program , theoretically exist to solve the transformation the problem lay the foundation . Engineering process , the paper first introduces the Siemens S7-412-3H control system design , hardware principle and troubleshooting PLC programming software STEP7 V5.4 configuration design , followed by the realization MODBUS communication with DCS and optimization research , improve the S7 system reliability and redundancy technology applications again integral filtering and anti- windup strategy into the PID technology to optimize the automatic quality , use of WINCCV6.2 , man-machine interface , reduce oil processing duty personnel , improve the reliability of the system is put into operation . Author in fuel oil processing PLC upgrade design , installation, commissioning research S7-400 's advanced technology , given that Siemens is more a lack of field service , hoped that the paper can provide a reference for the peer .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system > Computer control, computer control system
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