AN ON-LINE CALCULATION MODEL OF THERMAL ECONOMIC EFFICIENCY BASED BP NEURAL NETWORK

ZHU Yu; FENG Li-fa; XU Zhi-gao College of Energy and Environment

doi:10.19666/j.rlfd.2008.12.005

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AN ON-LINE CALCULATION MODEL OF THERMAL ECONOMIC EFFICIENCY BASED BP NEURAL NETWORK

Thermal Power Generation Vol. 37, Issue 12, Pages: 17-19(2008)

更新时间：2025-09-28

- AN ON-LINE CALCULATION MODEL OF THERMAL ECONOMIC EFFICIENCY BASED BP NEURAL NETWORK
- 作者机构：
  
  东南大学能源与环境学院
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2008.12.005
  CLC： TM621
- Published：2008
- 稿件说明：
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ZHU Yu, FENG Li-fa, XU Zhi-gao College of Energy and Environment. AN ON-LINE CALCULATION MODEL OF THERMAL ECONOMIC EFFICIENCY BASED BP NEURAL NETWORK[J]. Thermal Power Generation, 2008, 37(12): 17-19.
DOI：

ZHU Yu, FENG Li-fa, XU Zhi-gao College of Energy and Environment. AN ON-LINE CALCULATION MODEL OF THERMAL ECONOMIC EFFICIENCY BASED BP NEURAL NETWORK[J]. Thermal Power Generation, 2008, 37(12): 17-19. DOI： 10.19666/j.rlfd.2008.12.005.

摘要

借助神经网络较强的非线性拟合能力、网络泛化及容错能力构建了基于BP神经网络的热经济性在线计算模型。以某台320 MW机组为例

针对特定的热经济性指标

根据指标的热力学特性

充分利用神经网络的优点构建了汽轮机热耗率的模型。与常规方法计算所得结果的对比表明

该模型具有较高的准确性和稳定性

非稳态运行引起的参数波动对其计算结果影响很小

为热经济性指标在线计算提供了一种新的思路和方法。

Abstract

By means of stronger non-linear fitting ability

generalization of network

and fault tolerant ability of the neural network

an on-line calculation model of thermal economic efficiency based on BP neural network has been established.Taking one 320 MW unit as example

directing against the specified thermal economic indices

based on the thermodynamic property of said indices

and fully using the advantages of neural network

a model for calculating the heat consumption rate of steam turbine has been constructed.Comparison with results obtained from calculation by using conventional method shows that the said model has higher accuracy and stability

the parameter's fluctuation resulted from unstable operation has very small effect upon the result of calculation

providing a new way of thinking and a new method for on-line calculation of the thermal economic indices.

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