Silicon-carbide based power converter systems with advanced control methods for wind turbines

具有先进风力涡轮机控制方法的碳化硅电力转换器系统

• 批准号: 514508-2017
• 负责人: Lam, JohnChiWo
• 金额: $ 1.82万
• 依托单位: York University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=640078
• 关键词: Silicon; carbide; based; power; converter

With an expected rise of over 15% in greenhouse gas (GHG) emissions by 2020 from 2010 in Canada, it iscrucial to reduce GHG emissions by embracing clean and sustainable energy sources. Various initiativeprograms and generous incentives are offered across Canada such as the WindVision2025 project that seeks toproduce enough clean wind power to meet 20% of Canada's domestic electricity demand by 2025. In a typicalwindfarm, as the output voltage of the wind turbine is too low for effective long-distance power transmission, adedicated low frequency medium voltage (MV) step-up transformer is used for each wind turbine to step up theturbine output voltage to the MV level. However, the step-up transformers are bulky; heavy, and typicallylocated in the immediate vicinity of the wind turbines. Ontario-based manufacturer of electrical transformers,Northern Transformer Corporation has started to look into innovative power solutions to replace the lowfrequency MV transformers with compact and highly efficient power electronic step-up converters for highpower wind turbines. Although various types of medium to high frequency step-up power converters havebeen reported in literature for wind energy application, they either have restricted operating frequency rangedue to the presence of switching power loss or require expensive and complicated magnetic components. Inthis project, a new step-up power electronic converter that employs silicon-carbide switching devices withinnovative converter structure to minimize the overall conduction power losses will be devised. New insulationmaterial will be investigated and used to enable the high frequency transformer in the devised converter tooperate at higher temperatures and hence reducing the cooling requirement of the overall system.

预计到2020年，加拿大的温室气体（GHG）排放量将比2010年增加15%以上，因此通过采用清洁和可持续能源来减少GHG排放至关重要。加拿大各地提供了各种倡议计划和慷慨的激励措施，例如WindVision2025项目，该项目旨在到2025年生产足够的清洁风力发电，以满足加拿大20%的国内电力需求。在典型的风力发电场中，由于风力涡轮机的输出电压对于有效的长距离电力传输来说太低，所以针对每个风力涡轮机使用指定的低频中压（MV）升压Transformer以将涡轮机输出电压升压到MV水平。然而，升压变压器体积庞大、笨重，并且通常位于风力涡轮机附近。北方Transformer公司是一家位于安大略省的变压器制造商，该公司已开始研究创新的电源解决方案，以便用紧凑高效的电力电子升压转换器取代低频MV变压器，用于大功率风力涡轮机。虽然各种类型的中高频升压功率变换器已在文献中报道的风能应用，他们要么有有限的工作频率范围，由于开关功率损耗的存在，或需要昂贵和复杂的磁性元件。本计画将设计一种新型升压型电力电子转换器，此转换器采用具有创新转换器结构的矽碳化物开关元件，以减少整体传导功率损失。新的绝缘材料将被研究和使用，以使高频Transformer在设计的转换器tooperate在更高的温度，从而降低整个系统的冷却要求。