Advanced process control optimizing system of thermal power unit

An advanced process control and thermal power unit technology, applied in electrical program control, general control system, control/regulation system, etc., can solve the problem of long overheating time of main steam temperature, large fluctuation range of key parameters, long optimization work debugging period, etc. problem, to achieve the effect of improving load response rate, improving large lag, reliability and upgrading ability

Active Publication Date: 2015-04-01
DATANG HUAINAN LUOHE POWER PLANT +1
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an advanced process control optimization system for thermal power units to solve the problems of low l

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  • Advanced process control optimizing system of thermal power unit
  • Advanced process control optimizing system of thermal power unit
  • Advanced process control optimizing system of thermal power unit

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[0030] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0031] The present invention provides an advanced process control optimization system for a thermal power unit aiming at the existing problems of low load response rate, large fluctuation range of key parameters, long main steam temperature overheating time, large lag and long optimization work debugging cycle.

[0032] Such as figure 1 Shown is a schematic structural diagram of an advanced process control optimization system for a thermal power unit provided by an embodiment of the present invention, the system includes a discrete control system (Distributed Control System, DCS) 1 and object linking and embedding (Object Linking and Embedding) for process control for Process Control, OPC) server 2, also includes an advanced control system using predicti...

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Abstract

The invention provides an advanced process control optimizing system of a thermal power unit. The advanced process control optimizing system comprises a DCS (distributed control system) and an OPC (object linking and embedding for process control) server, and is characterized by also comprising an advanced control system adopting a predication control technology, wherein the advanced control system is communicated with the DCS through the OPC server, and comprises a modeling engine, an optimizing engine, a database and OPC communication service. The advanced process control optimizing system has the advantages that unit operation process control parameters are subjected to all-operating-condition self-adaptation real-time correction by various technologies such as predication control, self-adaptation control, coordination control, decoupling control and model distinguishing, the work state of a loop can also be monitored in real time, and in addition, statistical data and operation analysis reports are automatically generated, so the regulation quality of an automatic control system is improved, meanwhile, an independent hardware platform is adopted, and the debugging efficiency, the safety, the reliability and the updating capability are obviously improved.

Description

technical field [0001] The invention relates to the technical field of power plant control, in particular to an advanced process control optimization system for a thermal power unit. Background technique [0002] At present, the conventional coordinated control of thermal power units generally adopts the adjustment method of load command feedforward + proportional integration differentiation (PID) feedback. As the operating conditions of the unit change, the dynamic characteristics of the controlled object of the unit become relatively poor , the hysteresis and inertia of the process also become larger, and the nonlinear and time-varying characteristics of the system become more and more significant, resulting in low load response rate, large fluctuation range of key parameters, long overheating time of main steam temperature, large The problem of lagging and long debugging cycle of optimization work. It can be seen that the conventional adjustment method of load command fe...

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Application Information

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IPC IPC(8): G05B19/418
CPCY02P90/02G05B19/41865
Inventor 蒋维李全高阳刘冰徐柳蒋明达
Owner DATANG HUAINAN LUOHE POWER PLANT
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