Intelligent optimized parameter identification method applied to steam turbine and speed regulation system of steam turbine

A speed regulation system and parameter identification technology, which is applied in general control systems, control/regulation systems, adaptive control, etc., can solve problems such as long cycle, high degree of manual participation, and poor adaptability

Inactive Publication Date: 2015-12-30
ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to solve the problems of traditional steam turbine and speed control system parameter identification methods such as long period, poor adaptability and high manual participation

Method used

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  • Intelligent optimized parameter identification method applied to steam turbine and speed regulation system of steam turbine
  • Intelligent optimized parameter identification method applied to steam turbine and speed regulation system of steam turbine
  • Intelligent optimized parameter identification method applied to steam turbine and speed regulation system of steam turbine

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Embodiment Construction

[0045] The steam turbine and its speed regulating system are attached Figure 2-3 As shown, there are two control modes: power control mode and machine-boiler coordinated control mode (CCS). There are 9 key parameters to be identified: including the time constant of opening To / closing Tc of the actuator link, the high pressure of the steam turbine body link Volume time constant TCH, reheat volume time constant TRH, low pressure connecting pipeline volume time constant TCO, control link P, I, D coefficient and feedforward coefficient K. (Other parameters in the model can be consulted or calculated according to the relevant information of the unit)

[0046] The identification process is as follows:

[0047] as attached figure 1 As shown, firstly, the solution vector parameter dimension n is determined according to the number of parameters to be identified, and the i-th group of solution vector parameters are substituted into the model system, and the input signals are respecti...

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Abstract

The invention relates to an intelligent optimized parameter identification method applied to a steam turbine and a speed regulation system of the steam turbine, and aims at solving the problem that a traditional parameter identification method for the steam turbine and the speed regulation system of the steam turbine is long in the period and low in the adaptability and requires too much human participation. An efficient intelligent optimization-searching algorithm of high identification speed and precision and less in manual intervention is utilized on the basis of a steam turbine and speed regulation system model provided by PSD-BPA, and key parameters of the steam turbine and the speed regulation system are identified.

Description

[0001] 1. The name of the invention [0002] An Intelligent Optimization Method Applied to Parameter Identification of Steam Turbine and Its Speed ​​Control System [0003] 2. The technical field to which it belongs: [0004] The invention relates to an identification method of key parameters of a steam turbine and a speed regulating system in a power system, in particular to the identification of important parameters based on an intelligent optimization algorithm, and belongs to the field of optimization control. 3. Background technology [0005] Due to the complexity of the steam turbine and its speed control system and the changes in the characteristics of the equipment during the installation and commissioning process, it is difficult to obtain a complete and accurate mathematical model reflecting the dynamic characteristics of the system by purely theoretical modeling methods, so the parameter identification method is used to identify the dynamic model of the system The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
Inventor 钟晶亮邓彤天王家胜张颖
Owner ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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