Towards Power Electronic Centric Power Systems

迈向以电力电子为中心的电力系统

• 批准号: RGPIN-2019-06453
• 负责人: Lehn, Peter
• 金额: $ 4.01万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=714856
• 关键词: Towards; Power; Electronic; Centric; Systems

Advancement of fundamental research in the power electronic field will play a pivotal role in society's ability to economically transition towards electrification of its net energy infrastructure and to meet its ambitious green house gas emission targets. The shift towards renewables and electrified transport, will place additional demands on future, power electronic centric, electrical infrastructure that cannot be met by today's technology. To meet these demands, several key enabler grid technologies and supporting engineering tools will be required to optimally exploit the benefits of mixed AC and DC type power systems, as made possible by power electronics. This will result in a fundamentally different power system than the 60 Hz legacy AC power system of today. The proposed research program investigates three critical facets unique to future power electronic centric power systems. First, research into modular multi-level converters will explore new topologies to create single-stage DC/DC converter structures capable of high conversion ratios with goal that these structures provide functionality nearing that of a transformer, but for DC systems. Such solutions will provide a means of direct exchange of DC power between renewables, energy storage systems and DC loads without the multitude of costly AC/DC high power converters that are employed in today's electrical grid. This also has additional benefits in terms of improved energy efficiency and reliability of the grid. Secondly, DC networks that offer inherent capacity to electronically limit or interrupt the amplitude of hazardous grid fault currents will be developed. This development has promise to significantly reduce the cost of electrical infrastructure by providing broad access to the myriad of economic and environmental benefits that DC transmission and distribution networks can offer. Finally, next generation engineering tools are critically needed for the design, control and stability analysis of these emergent networks which will feature a high penetration of new power electronic systems that operate quite differently than the grid-interfaced power electronics of today. Classical modeling techniques, based on the theory of system linearization are failing to capture significant energy transfer mechanisms within emergent power electronic systems, yet precisely these systems provide the gateway to formerly unavailable functionality and new avenues for infrastructure cost reductions. The Global Infrastructure Hub, established by the G20, anticipates over $20 trillion U.S. will be invested globally in electrical energy infrastructure between 2020 and 2040. Optimal deployment of this investment will hinge on the technologies available for the conversion and control of electrical power, as provided by next generation power electronic systems.

电力电子领域基础研究的进步将在社会向净能源基础设施电气化经济过渡的能力和实现其雄心勃勃的温室气体排放目标方面发挥关键作用。向可再生能源和电气化交通的转变，将对未来以电力电子为中心的电力基础设施提出额外的要求，这是当今技术无法满足的。为了满足这些需求，需要几种关键的电网技术和支持工程工具，以最佳地利用混合交流和直流型电力系统的优势，这是由电力电子技术实现的。这将导致与今天的60赫兹传统交流电力系统根本不同的电力系统。提出的研究计划调查三个关键方面独特的未来电力电子中心电力系统。