2015
DOI: 10.1109/tec.2015.2422792
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Using Improved Power Electronics Modeling and Turbine Control to Improve Wind Turbine Reliability

Abstract: Improving offshore wind turbine reliability is a key industry goal to improve the availability of this renewable energy generation source. The semiconductor devices in the wind turbine power converter (WTPC) are traditionally considered as the most sensitive and important components to achieve this, and managing their thermo-mechanical stressing is vital, since this is one of their principal long-term aging mechanisms. Conventional deterministic reliability prediction methods used in industrial applications ar… Show more

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Cited by 26 publications
(15 citation statements)
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“…As mentioned in [7,11], another solution is to avoid synchronous operation in practical applications. In [14], an unstable section replaces the typical MPPT curve around synchronous speed. Consequently, the rotor speed slides through the unstable region when the rotor speed approaches the predefined speed range.…”
Section: Limitations In Existing Control Strategiesmentioning
confidence: 99%
See 2 more Smart Citations
“…As mentioned in [7,11], another solution is to avoid synchronous operation in practical applications. In [14], an unstable section replaces the typical MPPT curve around synchronous speed. Consequently, the rotor speed slides through the unstable region when the rotor speed approaches the predefined speed range.…”
Section: Limitations In Existing Control Strategiesmentioning
confidence: 99%
“…In regard to the switching losses of an IGBT and diode, it depends on the load current, DC link voltage and junction temperature as given by (10) and (11) [5,14]. where Iref, Vref, and Tref are the current, voltage, and temperature respectively, when the switching loss is measured as given in the datasheet of the semiconductor devices.…”
Section: Dfig Electrical Modelmentioning
confidence: 99%
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“…Thus, stability of the entire system can be increased and efficient and stable power generation can be achieved at lower speeds. In order to provide parameter adaptation in sensorless control methods, rotor flux linkage estimation and stator resistance adaptation are performed with MRAS, observer based methods, and genetic algorithms [28][29][30][31][32].…”
Section: Introductionmentioning
confidence: 99%
“…With the proposed method even in the situations where the wind speed is low, it is ensured that a superior PMSG control performance is achieved compared to other sensorless control methods based on back-EMF prediction. Because the rotor flux and the stator resistance undergo a change due to the effects of the loss of magnetic properties of magnets and temperature rise, a highly efficient control is ensured by estimating the rotor flux linkage and stator resistance using MRAS observer [30][31][32][33][34]. In this study, in order to get the maximum efficiency from PMSG, MPPT curve of the wind turbine is obtained in the real system.…”
Section: Introductionmentioning
confidence: 99%