Research on the evaluation method of steam power system operation status based on the theory of deterioration degree and health value

Kaiyu Li; Xinxin Cai; Shuang Huang; Yuanbao Chen; Jinyang Li; Wenlin Wang; Kaiyu Li; Xinxin Cai; Shuang Huang; Yuanbao Chen; Jinyang Li; Wenlin Wang

doi:10.3934/mbe.2023229

Mathematical Biosciences and Engineering

2023, Volume 20, Issue 3: 4940-4969. doi: 10.3934/mbe.2023229

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Research on the evaluation method of steam power system operation status based on the theory of deterioration degree and health value

1.
Naval University of Engineering of PLA, Wuhan 430000, China
2.
Wuhan Second Ship Design and Research Institute, Wuhan 430000, China
3.
China Academic of Electronics and Information Technology, Beijing 100000, China
4.
Sino-German College of Intelligent Manufacturing, Shenzhen Technology University, Shenzhen 518000, China

Academic Editor: Runzhang Xu

Received: 01 November 2022 Revised: 06 December 2022 Accepted: 11 December 2022 Published: 05 January 2023

The evaluation of the steam power system is very important for the operator to understand the operating status of the system, but the lack of consideration of the fuzziness of the complex system and the impact of the indicator parameters on the whole system makes the evaluation difficult. In this paper, an indicator system for evaluating the operation status of the experimental supercharged boiler is established. After discussing several methods of parameter standardization and weight correction, a comprehensive evaluation method based on the deterioration degree and health value is proposed while considering the deviation of the indicator and the fuzziness of the system. The comprehensive evaluation method, the linear weighting method and the fuzzy comprehensive evaluation method are respectively used to evaluate the experimental supercharged boiler. The comparison of the three methods shows that the comprehensive evaluation method is more sensitive to minor anomalies and faults and can draw quantitative health assessment conclusions.
- steam power system,
- deterioration degree,
- health value,
- operational status,
- evaluation method
Citation: Kaiyu Li, Xinxin Cai, Shuang Huang, Yuanbao Chen, Jinyang Li, Wenlin Wang. Research on the evaluation method of steam power system operation status based on the theory of deterioration degree and health value[J]. Mathematical Biosciences and Engineering, 2023, 20(3): 4940-4969. doi: 10.3934/mbe.2023229

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Abstract

The evaluation of the steam power system is very important for the operator to understand the operating status of the system, but the lack of consideration of the fuzziness of the complex system and the impact of the indicator parameters on the whole system makes the evaluation difficult. In this paper, an indicator system for evaluating the operation status of the experimental supercharged boiler is established. After discussing several methods of parameter standardization and weight correction, a comprehensive evaluation method based on the deterioration degree and health value is proposed while considering the deviation of the indicator and the fuzziness of the system. The comprehensive evaluation method, the linear weighting method and the fuzzy comprehensive evaluation method are respectively used to evaluate the experimental supercharged boiler. The comparison of the three methods shows that the comprehensive evaluation method is more sensitive to minor anomalies and faults and can draw quantitative health assessment conclusions.

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