DYNAMIC MODEL PARAMETER IDENTIFICATION FOR SUPERHEATER OF ULTRA-SUPERCRITICAL UNITS BASED ON GENETIC ALGORITHM

HU Wenkai; FANG Yanjun; LI Xin; XIONG Yangheng Department of Automation

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DYNAMIC MODEL PARAMETER IDENTIFICATION FOR SUPERHEATER OF ULTRA-SUPERCRITICAL UNITS BASED ON GENETIC ALGORITHM

更新时间：2025-09-28

- DYNAMIC MODEL PARAMETER IDENTIFICATION FOR SUPERHEATER OF ULTRA-SUPERCRITICAL UNITS BASED ON GENETIC ALGORITHM
- Thermal Power Generation Vol. 40, Issue 11, Pages: 28-32(2011)
- 作者机构：
  
  武汉大学动力与机械学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.32;TP18
- Published：2011
- 稿件说明：
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HU Wenkai, FANG Yanjun, LI Xin, et al. DYNAMIC MODEL PARAMETER IDENTIFICATION FOR SUPERHEATER OF ULTRA-SUPERCRITICAL UNITS BASED ON GENETIC ALGORITHM[J]. Thermal power generation, 2011, 40(11): 28-32.
DOI：

HU Wenkai, FANG Yanjun, LI Xin, et al. DYNAMIC MODEL PARAMETER IDENTIFICATION FOR SUPERHEATER OF ULTRA-SUPERCRITICAL UNITS BASED ON GENETIC ALGORITHM[J]. Thermal power generation, 2011, 40(11): 28-32. DOI：

摘要

针对超超临界机组过热器MISO动态模型参数辨识问题

提出了一种基于遗传算法的模型参数辨识方法。将遗传算子改进为排序保优选择、非均匀线性交叉和高斯变异

引入均匀设计方法构造初始种群

采用Sigmoid函数适应性调整交叉和变异概率

以提高遗传算法的收敛精度和运算速度。对海门电厂超超临界机组运行数据进行参数辨识仿真的结果表明

该改进遗传算法具有较好的运算性能

预测的输出变化与主蒸汽温度实际变化基本一致

能够反映高温过热器的动态特性。

Abstract

Directing against the MISO dynamic model of superheater for ultra-supercritical units

a model parameter identification method based on genetic algorithm(GA) has been put forward.The genetic operators have been improved as displacement sequence with ensuring quality selection

non-uniform linear crossover

and Gaussian mutation

the uniform design method is used to construct the initial sort group.The adaptability of Sigmoid function is used to adjust the probabilities of crossover and mutation

so as to enhance the convergence precision and operational speed of GA.The result of parameter identification emulation for operation data of ultra-supercritical unit in Haimen Power Plant shows that the improved GA method boasts better operational performance

the predicted output variation tallies basically with the actual variation of main steam temperature

can reflect the dynamic properties of high temperature superheater.

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