| The power network integrated automation brings up more and more high requestabout control quality of the coordination control system in the monoblock. Becausecomplexity of the object controled by coordination control system, at present, it isusually difficult to obtain the good control quality for the turbine-boiler coordinationcontrol system. Especially for the old reformed power unit, there aren't anyoff-the-shelf layouts to can be drawn lessons from. After analyzing the latestdevelopment about current process control, application and research of majorizingcoordination control system are carried out in the HaiPoWan power plant unit #1 .This system includes the DEH, the CCS and the AGC, three kinds of control method,and by operating mode this coordination control system also is classified as the basicmethod, the turbine-follow method and the boiler-follow method and so on, sevenkinds of operating mode. Designing the Master-control system is bases on balancedcoordination control system. In the System design, we not only inherittraditional-coordination control system's idea, but also introduce many high-classalgorithm into the system, for example ,the intelligent control algorithm, the adaptivefeed forward control, the offering rule control, the nonlinear compensation, theestimate control, the gain dispatching control and so on. All of this advanced aspectare performed well enough in this system. Referring to other international anddomestic advanced control experiences at the same time, especially the advancedcontrol experience of the DEB-400 system of MCS Company in the United States, wecreatively introduce the direct energy equilibrium principle and the heat signal intothe system. Because this system effectively solved many concrete problem in theengineering application and at the same time applies advanced algorithm to improvedynamic and static control quality, It is more advanced and much worthier ofapplying and expanding than other system in our country . |
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