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Frontiers in Energy

ISSN 2095-1701

ISSN 2095-1698(Online)

CN 11-6017/TK

邮发代号 80-972

2019 Impact Factor: 2.657

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Frontiers in Energy  2021, Vol. 15 Issue (2): 529-538   https://doi.org/10.1007/s11708-019-0624-0
  本期目录
Availability growth models and verification of power equipment
Jinyuan SHI(), Jiamin XU
Shanghai Power Equipment Research Institute, Shanghai 200240, China
 全文: PDF(822 KB)   HTML
Abstract：

The general availability growth models for large scale complicated repairable system such as electric generating units, power station auxiliaries, and transmission and distribution installations are presented. The calculation formulas for the maintenance coefficient, mathematical expressions for general availability growth models, ways for estimating, and fitting on checking the parameters of the model are introduced. Availability growth models for electric generating units, power station auxiliaries, and transmission and distribution installations are given together with verification examples for availability growth models of 320–1000 MW nuclear power units and 1000 MW thermal power units, 200–1000 MW power station auxiliaries, and 220–500 kV transmission and distribution installations. The verification results for operation availability data show that the maintenance coefficients for electric generating units, power station auxiliaries, transmission and distribution installations conform to the power function, and general availability growth models conform to rules of availability growth tendency of power equipment.
Key words： repairable system    power equipment    electric generating unit    power station auxiliary    transmission and distribution installation    reliability    availability    availability growth model
收稿日期: 2018-07-03      出版日期: 2021-06-18
Corresponding Author(s): Jinyuan SHI   
 引用本文:   
. [J]. Frontiers in Energy, 2021, 15(2): 529-538.
Jinyuan SHI, Jiamin XU. Availability growth models and verification of power equipment. Front. Energy, 2021, 15(2): 529-538.
 链接本文:  
https://academic.hep.com.cn/fie/CN/10.1007/s11708-019-0624-0
https://academic.hep.com.cn/fie/CN/Y2021/V15/I2/529
Fig.1  
Year Availability n a h1 m1 F Fa
2008–2015 EAF 8 0.10 0.146364 0.129060 5.24 3.78
2008–2017 EAF 10 0.10 0.146365 0.127034 6.44 3.46
Tab.1  
Year Availability Statistical values/% Predicted values/% Er/%
2016 EAF 88.77 90.07 1.467
2017 EAF 91.10 90.19 –0.996
Tab.2  
Fig.2  
Number Year Availability n a h m F Fa
Zouxian 7 2007–2014 EAP 8 0.10 0.012246 4.224333 17.93 3.78
Zouxian 7 2007–2016 EAP 10 0.10 0.006830 3.447155 16.04 3.48
Zouxian 8 2008–2014 EAP 7 0.10 0.002822 3.657275 9.24 4.06
Zouxian 8 2008–2016 EAP 9 0.15 0.000247 0.569055 3.10 2.61
Tab.3  
Number Year Availability Statistical values/% Predicted values/% Er/%
Zouxian 7 2015 EAP 100.00 100.00 0
Zouxian 7 2016 EAP 100.00 100.00 0
Zouxian 8 2015 EAP 99.76 99.99 0.239
Zouxian 8 2016 EAP 97.63 99.99 2.428
Tab.4  
Fig.3  
Fig.4  
Product Year Availability n a h3 m3 F Fa
Coal mill 2008–2015 AU 8 0.10 0.004715 0.566842 60.24 3.78
Coal mill 2008–2017 AU 10 0.10 0.005203 0.682362 95.57 3.46
Feed water pump set 2008–2015 AU 8 0.10 0.003714 0.711199 51.45 3.78
Feed water pump set 2008–2017 AU 10 0.10 0.003719 0.712172 41.91 3.46
Forced-draft fan 2008–2015 AU 8 0.10 0.000466 0.812522 8.40 3.78
Forced-draft fan 2008–2017 AU 10 0.10 0.000439 0.745527 11.02 3.46
High-pressure heater 2008–2015 AU 8 0.10 0.003217 0.615680 20.41 3.78
High-pressure heater 2008–2017 AU 10 0.10 0.003410 0.682843 30.59 3.46
Tab.5  
Product Year Availability Statistical values/% Predicted values/% Er/%
Coal mill 2016 AU 99.91 99.86 –0.046
Coal mill 2017 AU 99.91 99.87 –0.038
Feed water pump set 2016 AU 99.92 99.92 0
Feed water pump set 2017 AU 99.93 99.93 0
Forced-draft fan 2016 AU 100.00 99.99 –0.008
Forced-draft fan 2017 AU 99.99 99.99 0
High-pressure heater 2016 AU 99.93 99.92 –0.013
High-pressure heater 2017 AU 99.94 99.92 –0.018
Tab.6  
Fig.5  
Fig.6  
Fig.7  
Fig.8  
Product Year Availability n a h3 m3 F Fa
Transformer 2008–2015 AF 8 0.10 0.005419 0.963494 14.93 3.78
Transformer 2008–2017 AF 10 0.10 0.0054376 0.715571 9.54 3.46
Reactor 2008–2015 AF 8 0.10 0.006104 0.788064 19.15 3.78
Reactor 2008–2017 AF 10 0.10 0.005700 0.713738 16.27 3.46
Circuit breaker 2008–2015 AF 8 0.10 0.001761 0.837030 8.49 3.78
Circuit breaker 2008–2017 AF 10 0.10 0.001491 0.645548 7.02 3.46
Current transformer 2008–2015 AF 8 0.10 0.001352 0.907618 13.37 3.78
Current transformer 2008–2017 AF 10 0.10 0.001369 0.925593 17.99 3.46
Voltage transformer 2008–2015 AF 8 0.15 0.001017 0.649014 3.38 2.72
Voltage transformer 2008–2017 AF 10 0.10 0.000978 0.606558 5.78 3.46
Isolating switch 2008–2015 AF 8 0.10 0.000756 0.989894 12.21 3.78
Isolating switch 2008–2017 AF 10 0.10 0.000698 0.902710 12.14 3.46
Arrester 2008–2015 AF 8 0.10 0.001282 0.862285 9.88 3.78
Arrester 2008–2017 AF 10 0.10 0.001259 0.843657 13.93 3.46
Composite apparatus 2008–2015 AF 8 0.10 0.000566 0.719779 3.88 3.78
Composite apparatus 2008–2017 AF 10 0.10 0.000616 0.821646 6.67 3.46
Tab.7  
Product Year Availability Statistical values/% predicted values/% Er/%
Transformer 2016 AF 99.87 99.93 0.068
Transformer 2017 AF 99.86 99.94 0.085
Reactor 2016 AF 99.90 99.89 –0.012
Reactor 2017 AF 99.83 99.90 0.074
Circuit breaker 2016 AF 99.96 99.97 0.014
Circuit breaker 2017 AF 99.94 99.97 0.032
Current transformer 2016 AF 99.99 99.98 –0.004
Current transformer 2017 AF 99.98 99.98 0
Voltage transformer 2016 AF 99.98 99.97 –0.010
Voltage transformer 2017 AF 99.97 99.97 0
Isolating switch 2016 AF 99.99 99.99 0
Isolating switch 2017 AF 99.99 99.99 0
Arrester 2016 AF 99.98 99.99 0.010
Arrester 2017 AF 99.98 99.99 0.010
Composite apparatus 2016 AF 99.99 99.99 0
Composite apparatus 2017 AF 99.99 99.99 0
Tab.8  
Fig.9  
Fig.10  
Fig.11  
Fig.12  
Fig.13  
Fig.14  
Fig.15  
Fig.16  
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