What Caused the Accident at the Sayano-Shushenskaya Hydroelectric Power Plant (SSHPP): A Seismologist's Point of View

Seleznev, V. S.; Лисейкин, А. В.; Bryksin, Alexey A.; Gromyko, P. V.

doi:10.1785/0220130163

Cited by 20 publications

(6 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For example, the great accident in the Sayano-Shushenskaya hydroelectric power station in Russia happened on 17 August 2008. Practically speaking, hydroelectric generator number 2 (HG2) suddenly destroyed itself during operation and was thrown from its position by water pressure [6]. As we all know, the hydro-turbine governing system is one of the most important parts of a hydroelectric station, and its running conditions directly affect the stability of hydroelectric stations and electrical systems.…”

Section: Introductionmentioning

confidence: 99%

Modeling and stability analysis of a fractional-order Francis hydro-turbine governing system

Chen

Zhang

et al. 2015

Chaos, Solitons & Fractals

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Modeling and stability analysis of a fractional-order Francis hydro-turbine governing system

Chen

Zhang

et al. 2015

Chaos, Solitons & Fractals

View full text Add to dashboard Cite

“…Agregati so s svojim obratovanjem tudi vir vzbujanja za konstrukcijo in ti novi nepredvideni pogoji obratovanja ne vplivajo le na pospešeno staranje opreme, ampak tudi na procese staranja nosilne betonske konstrukcije. V literaturi lahko zasledimo nekaj navedb poškodb na konstrukcijah zaradi obratovalnih obtežb (Hillgren, 2011;Lopez in Restrepo Velez, 2003;Seleznev et al, 2014;Urquiza et al, 2014). Prav tako tudi nekateri upravljavci pri nas opažajo prve znake utrujanja nosilne betonske konstrukcije.…”

Section: Obratovalna Obtežbaunclassified

Structural health monitoring of concrete gravity dams

2021

View full text Add to dashboard Cite

The ageing of dams is one of the major challenges in specifically Slovenian and generally global dam engineering. Dams are exposed to environmental (climate) changes, as well as time-dependent effects, such as changes in the operating schedules of dams intended primarily for hydroelectric production. These changes can accelerate dams’ ageing and lead to a decrease in their structural and operational safety. Dams are an important part of the infrastructure, as they bring about numerous benefits and at the same time they are also sources of risk. For example, in the event of partial or total failure they pose significant risk to downstream areas. Aging of dams, preserving their functionality, and maintaining their structural health are currently the main challenges of dam engineering. The mean age of Slovenian dams is already over 40 years, although Slovenia is not unique in this situation. In this paper there is presented a novel methodology to monitor structural health of concrete dams, with the use of noncontact and contact measurements through observation of structural vibrations. We present the in-situ experiment on the Brežice dam that began during the dam’s construction and continued into the first year of its operation.

show abstract

“…Given these benefits, construction of further hydropower systems is expected to continue, and the growth rate to rise. The economic benefits [3] and carbon dioxide [4] mitigation of these generating systems are well known to the general public, but stability and safety requires attention, with several recent, high-profile failures, such as the accident at the Sayano-Shushenskaya Hydroelectric Power Plant [5]. Failures in hydropower units, at their best, result in capacity reductions and financial loss, and at their worst, injury and death.…”

Section: Introductionmentioning

confidence: 99%

“…However, there are still many instability problems in operating turbine generator units, especially during transient processes. For example, the Sayano-Shushenskaya hydroelectric generator unit, or the largest power plant in Russian history, suddenly destroyed itself during load rejection and was thrown from its position by water pressure [5]. Seventy-five people died as a result of the catastrophe.…”

Section: Introductionmentioning

confidence: 99%

Modeling oscillation modal interaction in a hydroelectric generating system

Chen

Behrens

et al. 2018

Energy Conversion and Management

View full text Add to dashboard Cite

Global hydropower growth continues to accelerate with 25% of total capacity installed in just the last 10 years. This accelerating expansion and the important storage facility hydropower means it is increasingly important to understand the reasons for operational failures. This is a challenge because the major reason for failures involves the complex interaction of hydraulic, mechanical and electric subsystems. Historically, reliability modelling has been split in two directions, focusing on different sub-systems, and has not yet been unified. Here these approaches are unified with a novel expression of unbalanced forces. This model with operational data are validated and the important modes of oscillation in the shaft are identified. Finally, the mechanism of the first-order oscillation mode exciting a second-order mode is presented. This integrated and accurate mathematical model is a major advance in the diagnosis and prediction of failures in hydropower operation.

show abstract

What Caused the Accident at the Sayano-Shushenskaya Hydroelectric Power Plant (SSHPP): A Seismologist's Point of View

Cited by 20 publications

References 7 publications

Modeling and stability analysis of a fractional-order Francis hydro-turbine governing system

Modeling and stability analysis of a fractional-order Francis hydro-turbine governing system

Structural health monitoring of concrete gravity dams

Modeling oscillation modal interaction in a hydroelectric generating system

Contact Info

Product

Resources

About