亚临界燃煤机组协调控制模型辨识方法及系统

By combining recurrent neural networks with big data optimization, the problem of inaccurate model parameter acquisition in AGC mode for subcritical coal-fired units was solved, achieving accurate identification of the coordinated control model, reducing on-site commissioning time, and improving work efficiency.

CN120871612BActive Publication Date: 2026-07-17NANJING GUODIAN NANZI WEIMEIDE AUTOMATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING GUODIAN NANZI WEIMEIDE AUTOMATION CO LTD
Filing Date
2025-07-21
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Under dual-carbon conditions, subcritical coal-fired units cannot switch to manual mode for open-loop testing in AGC mode, resulting in inaccurate engineering calculations and increasing the debugging time for on-site optimization control functions.

Method used

By combining recurrent neural networks with big data optimization, a recurrent neural network model is established by collecting target operating parameter data of subcritical coal-fired power units. The optimization algorithm is then used to calculate the dynamic relationships between different variables in the controlled object model of the coordinated control system, thereby achieving accurate model identification.

Benefits of technology

It reduced the debugging time for engineers on site, improved work efficiency, solved the problem of inaccurate model parameter acquisition in AGC mode, and realized precise coordinated control of subcritical coal-fired units.

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Abstract

本发明公开了一种亚临界燃煤机组协调控制模型辨识方法及系统,包括:采集亚临界燃煤机组目标运行参数的数据,形成历史数据,基于历史数据建立两种神经网络模型;选择不同负荷变化情况下的历史数据,重构所选的历史数据并分别输入到对应的训练好的神经网络模型中,获得主蒸汽压力和主蒸汽流量的模拟值;基于主蒸汽压力和主蒸汽流量的模拟值和历史数据,利用寻优算法计算亚临界燃煤机组的协调控制系统被控对象模型中不同变量之间的动态关系。本发明解决了亚临界燃煤机组在AGC模式下无法切换至手动状态进行开环试验,且由于负荷多变而导致的工程计算方法不准确的问题,提高了辨识的精度,减少了工程人员在现场的调试时间,提升了工作效率。
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Citation Information

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