Alteration And Application Of DCS System In Huarun Pengcheng Power Plant

Technical alteration and innovation is not only the soul of a country’s development andprogress, but also the manifestation of the core competitiveness of enterprises. PengchengPower Plant as the old factory with24years of history has been and is to make a significantcontribution for the economy in Jiangsu Province. But there have been problems in nowPengcheng Power Plant, for example, the units of phase I have been Presence of obsoleteequipment, automation level has been not high, the efficient has been low etc. Faced with thetechnical transition, equipment scattered locations, fewer integration of measurement,monitoring and control technology, larger waste of manpower, and more security risks, thesehave seriously affected the development of the productive forces.The research content of this paper is based on actual alteration demand of the units DCS(distributed control system) of phase I in Pengchen Power Plant. In this article, the DCSdevelopment status at home and abroad is reviewed, the power plant fuel system is introducedand analysed, the conditions and defects of the original DCS in Pengcheng Power Plant areanalysed into detail, combined with the findings of other power plants, specific requirementsand plans of the DCS alteration are given by the risk and economic assessment. On the basis,combined with the functional requirements of the fuel system, specific objectives of fuelcontrol system integrated into the DCS are set up.On the basis of established specific goals, the DCS system is selected, XDPS-400e ofXinhua Control Technology Company is selected as the DCS equipment of the alteration. Inthis paper, the alteration of the hardware and software configuration is analyzed. On the basisof the existing DCS hardware configuration, the alteration configuration is optimized andretrofited, the DCS subsystem of fuel system is built into the DCS system of the power plant,and the monitoring configuration of control logic diagram of fuel DCS subsystem is designed,the cross section diagram of the main menu is drawed, and the software configuration of eachlogic diagram is designed, the one of them is selected as a typical software configuration and described. After all software configuration designed and completed, the fuel controlsubsystem is integrated into the DCS system, the main menu interface is given, two typicaloperating interface is analyzed, all of the configuration software design is completed. At last,the system maintenance is given. The system is put into operation in Pengcheng power plant.The system completely achieved the expected design target, improved the safe operation ofthe level of the fuel system, and has achieved obvious economic benefits and social benefits.