Designing the cooling systems for the world's most powerful turbogenerator - Olkiluoto unit 3

Gray, R.; Montgomery, L.W.; Nelson, Richard C.; Pipkin, Jennifer; Joki-Korpel, S.; Caguiat, F.

doi:10.1109/pes.2006.1708951

Cited by 13 publications

(7 citation statements)

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“…This method consists of the hollow stator bars, phase connection rings, main leads, bushings, and neutral bus, that deionized water or oil past the hollow passages to remove the high temperature directly from the stator windings [63] and [64]. These types of cooling are mostly implemented on large synchronous machines [65], [66], and [67]. However, developing the AM method allows the designer to implement this thermal management system for small machines [68].…”

Section: ) Additive Manufacture Direct Liquid Cooling Windingmentioning

confidence: 99%

Opportunities and Challenges of Utilizing Additive Manufacturing Approaches in Thermal Management of Electrical Machines

et al. 2021

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The additive manufacturing approach is considered a new manufacturing technology method and is evolving dynamically in recent years. It is advancing and achieving as the key enabling technology in a wide range of applications, from medical sciences to the aerospace and automotive industries. This novel approach opens a new path to overcome the conventional manufacturing problems and challenges by providing more design freedom, new ranges of materials, lightweight and complex geometries. According to demands metrics such as lightweight and high power density motors. This offers clear motivation to develop the advanced thermal management method with new materials and a novel additive manufacturing (AM) approach. The paper aims to provide a comprehensive review of all the attempts in various electrical machines' thermal management methods using AM method. It considers the opportunities and challenges that designers are facing while implementing these approaches. Finally, the authors make some comments/forecasts on how the AM could improve the performance and manufacturability of the future thermal management system of electrical machines INDEX TERMS Additive manufacturing (AM), cooling systems, electrical machine, manufacturing techniques, thermal management, three-dimensional (3-D) printing, traction motors.

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Section: ) Additive Manufacture Direct Liquid Cooling Windingmentioning

confidence: 99%

Opportunities and Challenges of Utilizing Additive Manufacturing Approaches in Thermal Management of Electrical Machines

et al. 2021

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“…High temperature is one of the limiting criteria of machine operation, and for the generator it is the main drive for insulation aging (Shipurkar et al, 2016). Possible cooling solution such as liquid (water or hydrogen) cooling has been developed to mitigate such issues (Gray et al, 2006;Jiang, 2010). There are some generators with inner liquid cooled coil, where the coolant flows inside of the windings (Semken et al, 2012).…”

Section: Generator Windingmentioning

confidence: 99%

A solution to reduce overheating and increase wind turbine systems availability

Singh

Sundaram

Matuonto³

2020

Wind Engineering

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The ever-increasing demand for electrical power and the tremendous growth of renewable energy sources in the past decade has led designers to design wind turbine system components for optimal performance. Cost optimization, weight reduction, higher performances, and lower non-conformance cost are a few expectations that components are expected to meet in the present market condition. Wind turbine system unavailability impacts the annual energy production of the wind turbine. Overheating of the wind turbine system components is one of the main challenges to overcome. For the heating analysis, we discuss the wind turbine generator as a specific example in this article. This approach is equally valid for other components of wind turbine systems, with heat exchanger. Windings and bearings are the two main components susceptible to failure in the generator for wind turbine applications. The root cause may vary from case to case, but overheating accelerates the generator’s windings and bearing failure and in many cases is the prime reason behind. Running the components at higher load points is one of the reasons for components to overheat. The article presents a solution to improve the performance of the wind turbine system and at the same time making it a commercially attractive choice. This can be achieved by reducing generator windings and bearings operating temperature, and also reducing its cost and weight at the same time. The proposed solution to reduce overheating is achieved and verified through results. The achieved results also explain how one solution is advantageous over the other.

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“…Many high power wind turbines today already use liquid cooling for the generator and converter [130]. This cooling performance may be improved by using hydrogen cooling as in [131].…”

Section: ) Magnetic Stator Wedgesmentioning

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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Designing the cooling systems for the world's most powerful turbogenerator - Olkiluoto unit 3

Cited by 13 publications

References 0 publications

Opportunities and Challenges of Utilizing Additive Manufacturing Approaches in Thermal Management of Electrical Machines

Opportunities and Challenges of Utilizing Additive Manufacturing Approaches in Thermal Management of Electrical Machines

A solution to reduce overheating and increase wind turbine systems availability

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

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