基于FMU标准与优化算法的管网模型参数反演方法和装置

By constructing a pipeline network physical model in the Modelica environment and using a neural network surrogate model and staggered mesh method, combined with a three-stage optimization algorithm, the problems of long time consumption and low accuracy in pipeline network model parameter calibration in the existing technology are solved, and efficient and accurate parameter inversion is achieved.

CN121706616BActive Publication Date: 2026-07-17HANGZHOU STEAM TURBINE ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HANGZHOU STEAM TURBINE ENG
Filing Date
2026-02-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies suffer from time-consuming, reliance on human experience, and difficulty in finding the global optimal solution in pipeline network model parameter calibration. Furthermore, existing toolchains struggle to achieve efficient and accurate parameter inversion.

Method used

A hybrid strategy based on the FMU standard and optimization algorithms is adopted. By constructing a pipeline physical model in the Modelica modeling environment, a neural network proxy model is used to replace the time-consuming physical simulation. Combined with the staggered mesh method and the three-stage optimization algorithm, cross-platform model coupling and parameter inversion are achieved.

Benefits of technology

It achieves efficient and accurate automated inversion of pipeline system parameters, significantly improving calibration efficiency and accuracy, avoiding local optima traps, and is suitable for complex pipeline systems.

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Abstract

本发明提供了基于FMU标准与优化算法的管网模型参数反演方法和装置,涉及流体仿真与参数校准技术领域,建立管网物理模型,将待反演参数定义为可调参数,编译导出为FMU格式文件;在优化环境中加载FMU文件,通过均匀随机采样生成参数样本集,训练神经网络代理模型建立参数到系统响应的映射关系;设计加权误差损失函数,将实测数据与仿真输出的偏差作为优化目标,采用优化算法对神经网络代理模型求解最优参数,根据最优参数运行管网系统。本发明通过FMU标准实现Modelica建模优势与Python优化算法结合;通过神经网络代理模型加速优化迭代,大幅提升参数标定效率;实现管网关键参数的高精度自动化反演。
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