PREDICTIVE ANALYTICS SYSTEM
FOR TECHNICAL STATE ASSESSMENT
OF HYDRAULIC UNIT
Webinar: «Hydropower of Latin America: implementation of HPPs construction and modernization projects»
August 26th, 2020
2
PROBLEMS OF ENERGY EQUIPMENT
1. Design lifetime is over
2. Off-design operation mode
3. Increased repair and maintenance costs
by report data: E. Parkinson. Advanced technologies of works on repair and restoration of objects in hydropower // Conference "Hydropower. Hydraulic engineering. New developments and technologies". Reports and speeches. St. Petersburg, Publishing house " VNIIG them. B. E. Vedeneeva". 2017. Pp. 95-104 by report data: Bogush B. “About modernization of equipment and introduction of modern information technologies to ensure energy security and energy efficiency of HPP and HAPP operation // Energy efficiency and energy security of hydropower facilities in the context of
modernization and digital transformation. Rusenergyweek-2019
3
EQUIPMENT FAILURES
D. Frunzăverdel, S. Muntean, G. Mărginean, V. Câmpiani, L.
Marşavina, R. Terzi, V. Şerban. Failure analysis of a Francis turbine
runner // IOP Conf. Series: Earth and Environmental Science. 2010.
Vol. 12. P. 012115.
Egusquiza E., Valero C., Xingxing H., Jou E., Guardo A.,
Rodriguez C. Failure investigation of a large pump-turbine
runner // Engineering Failure Analysis 23 (2012), p. 27-34
Existing solutions DO NOT PREVENT accidents and damage!
Nennemann B., Monette C., Chamberland-Lauzon J.: Hydrodynamic
damping and stiffness prediction in Francis turbine runners using CFD.
IOP Conf. Series: Earth and Environmental Science 49(7), 072006
(2016), doi:10.1088/1755-1315/49/7/072006.
в) L70
б) L9
а) L2
г) L88
з) L125
е) L94
ж) L123
д) L91
Рис. 1.1 – Примеры трещин в РО РК
Liu X., Luo Y., Wang Z. A review on fatigue damage mechanism
in hydroturbines // Renewable and Sustainable Energy Reviews
54 (2016). P. 1–14. doi: 10.1016/j.rser.2015.09.025
https://bigpicture.ru/wp-content/uploads/2009/09/s32_2026.jpg
д) разрушение штока механизма разворота
лопастей [L8]
е) разрушение болтов крышки насос-турбины
[L3]
Рис. 1.1 –
Ресурсные отказы элементов гидротурбин
Liu X., Luo Y.Y., Wang Z.W. Fatigue Analysis of the Piston Rod in a Kaplan TurbineBased on Crack Propagation under Unsteady Hydraulic Loads // IOP Conf. Series: Earth and Environmental Science. 2014. Vol. 22. № 1. Pp. 12017-12026(10).