Dynamic Data Reserved Modeling Method Based on Steady-state Component Estimation and State Tracking

Authors

Dong Ze, Hebei Engineering Research Center of Simulation & Optimized Control for Power Generation (North China Electric Power University), Baoding 071003, China;
Erxin Yin, Hebei Engineering Research Center of Simulation & Optimized Control for Power Generation (North China Electric Power University), Baoding 071003, China;

Abstract

Abstract: Aiming at the existing problems of conventional industrial system modeling methods, a dynamic data reserved modeling method based on steady-state component estimation and state tracking is proposed. The dynamic response data of the system is selected as the modeling data. The input value at the end of the selected data is chosen as steady-state component, and the steady-state component value of output is artificial given. Steady-state component of the modeling data is removed according to the steady-state component of input and output, and the modeling data is divided into three sections. The prediction model and the state observer are used to observe the system state at the end of the first section, and the state is regarded as system initial state corresponding to second section. The second section is used to optimize model parameters and output steady-state component. The third section of data is adopted to validate the model. The finishing superheater modeling of a thermal power unit is carried out,and the simulation results show the method effectiveness.

Recommended Citation

Ze, Dong and Yin, Erxin (2019) "Dynamic Data Reserved Modeling Method Based on Steady-state Component Estimation and State Tracking," Journal of System Simulation: Vol. 31: Iss. 5, Article 3.
DOI: 10.16182/j.issn1004731x.joss.17-0173
Available at: https://dc-china-simulation.researchcommons.org/journal/vol31/iss5/3

First Page

843

Revised Date

2017-07-01

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.17-0173

Last Page

852

CLC

TP391.9

Recommended Citation

Dong Ze, Yin Erxin. Dynamic Data Reserved Modeling Method Based on Steady-state Component Estimation and State Tracking[J]. Journal of System Simulation, 2019, 31(5): 843-852.

DOI

10.16182/j.issn1004731x.joss.17-0173