Converter Lifetime Assessment for Doubly-Fed Induction Generators Considering Derating Control Strategies at Low Rotor Frequencies

Morisse, Marcel; Bartschat, Arne; Wenske, Jan; Mertens, Axel

doi:10.1088/1742-6596/753/11/112003

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…The converters use the sinusoidally modulated PWM for controlling the modules. Although a number of other modulation strategies are available, studies in [27] and [28] show that the effect of these is not significant compared to the results in this paper. Therefore, these different modulation strategies have not been considered.…”

Section: Table VIIcontrasting

confidence: 71%

Lifetime Comparison of Power Semiconductors in Three-Level Converters for 10-MW Wind Turbine Systems

Shipurkar

Lyrakis

et al. 2018

IEEE J. Emerg. Sel. Topics Power Electron.

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Section: Table VIIcontrasting

confidence: 71%

Lifetime Comparison of Power Semiconductors in Three-Level Converters for 10-MW Wind Turbine Systems

Shipurkar

Lyrakis

et al. 2018

IEEE J. Emerg. Sel. Topics Power Electron.

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“…Using again a field-experience based approach, the research carried out within this cluster has built on an exploratory analysis of comprehensive converter-failure and operating data, which was provided by the project partners, as well as on field measurements and the post-mortem analysis of power-converter components returned from the field. This has been complemented by comprehensive modelling and simulation work for investigating potentially critical effects resulting from the dynamic interaction of the electrical, mechanical and structural wind-turbine components under the influence of stochastic wind fields and grid conditions [29][30][31]. The results of all these different approaches have been evaluated in an interdisciplinary team in close collaboration with the project partners, with the main objective to identify the relevant factors and mechanisms leading to converter failure in wind turbines in order to create a sound basis for the development of effective countermeasures.…”

Section: Previous Work Of the Authorsmentioning

confidence: 99%

Exploring the Causes of Power-Converter Failure in Wind Turbines based on Comprehensive Field-Data and Damage Analysis

et al. 2019

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Power converters are among the most frequently failing components of wind turbines. Despite their massive economic impact, the actual causes and mechanisms underlying these failures have remained in the dark for many years. In view of this situation, a large consortium of three research institutes and 16 companies, including wind-turbine and component manufacturers, operators and maintenance-service providers has joined forces to identify the main causes and driving factors of the power-converter failures in wind turbines to create a basis for effective remedial measures. The present paper summarizes and discusses the results of this research initiative, which have been achieved through the evaluation of converter-specific failure and operating data of a large and diverse worldwide wind-turbine fleet, field measurements as well as post-mortem investigation of returned converter components. A key conclusion of the work is that the thermal-cycling induced fatigue of bond-chip contacts and die-attach solder, which is a known issue in other fields of power-electronics applications and which has been widely assumed to be the principle damage mechanisms also in wind turbines, is no relevant contributor to the observed converter failures in this application. Instead, the results indicate that environmental factors such as humidity and contamination but also design and quality issues as well as human errors play an important part in the incidence of these failures.

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“…3) Modulation: The use of the Discontinuous PWM modulation technique can reduce the effective switching frequency of a converter and increase lifetime. This use of this modulation strategy has been shown to have a modest effect on the lifetime of the converter for DFIGs in [64]. However, the DPWM leads to increased current harmonics at low modulation levels.…”

Section: B Component Reliability -Converter Levelmentioning

confidence: 99%

A Review of Methods to Increase the Availability of Wind Turbine Generator Systems

Shipurkar¹,

Polinder²,

Ferreira³

2016

CPSS TPEA

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Abstract-Availability is an important factor to be considered when designing wind turbine generator systems. The quest for increased availability is based on the following five design approaches -design for component reliability, active control for reliability, design for fault tolerance, prognostics, and design for maintainability. This paper reviews methods focussing on the first three, i.e. component reliability, active control, and fault tolerance. The paper further identifies some promising directions for further research.

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Converter Lifetime Assessment for Doubly-Fed Induction Generators Considering Derating Control Strategies at Low Rotor Frequencies

Cited by 4 publications

References 3 publications

Lifetime Comparison of Power Semiconductors in Three-Level Converters for 10-MW Wind Turbine Systems

Lifetime Comparison of Power Semiconductors in Three-Level Converters for 10-MW Wind Turbine Systems

Exploring the Causes of Power-Converter Failure in Wind Turbines based on Comprehensive Field-Data and Damage Analysis

A Review of Methods to Increase the Availability of Wind Turbine Generator Systems

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