Power electronics for industrial drives, electric transportation and clean energy systems

电力电子设备是许多电力系统应用中的关键部件。该计划将重点关注以下应用：电动交通；清洁能源（风能和光伏）；电池储能系统；大功率、高速变频驱动。电力电子电路设计的许多方面每年都在改进。中心目标通常是提高功率转换效率和使用更便宜、更紧凑的设计。在这个过程中，一个重大的挑战是将增强的性能、更高的可靠性和更长的产品寿命结合起来。***目标：电力电子转换器的尺寸，成本和寿命通常与其使用的冷却系统和电气过滤元件（如电容器和电感器）有关。冷却系统通常与所使用的功率半导体技术和最适合其特性的电路性质有关。电容器是一种相对便宜、紧凑且广泛应用于许多工业电力电子设备的元件，但其寿命短且存在潜在故障。另外，电感器被认为是可靠的，使用寿命长，但天生就大、重、贵。本研究计划的基本技术研究目标是利用电力电子电路拓扑的创新来减小这三种元件的尺寸，从而生产出更紧凑、性能更高、可靠性更高、成本更低的产品。***新颖性：对于每个正在考虑的应用，将使用以下电路概念实现电力电子电路拓扑的创新：多功能电源转换器；采用多肢磁芯和低磁通密度的耦合电感；采用多功率转换技术的浮电容变换器具有较低的总电容；采用耦合电感和浮动电容模块的混合电力电子拓扑结构；先进的PWM开关技术。新的功率转换器设计也将被检查，利用功率半导体器件技术（SiC和GAN）的最新进展。这些设备有望在未来10年内改变许多电力电子转换器的性质。***意义：本研究项目将有助于在清洁能源发电、储能系统、电力运输和工业过程等应用中开发更经济、更可靠、更高效的电力转换系统。加拿大经济将受益于创造知识产权和培训具有与高效、可靠和成本效益高的电力转换系统技术相关技能的高素质人员。

Introduction: Power electronics are a key component in many applications using electrical power systems. This program will focus on applications such as: electric transportation; clean-energy sources (wind and photovoltaics); battery energy storage systems; high power and high speed variable frequency drives. Many aspects of power electronic circuit design are improving on a yearly basis. Central goals are normally to improve power conversion efficiencies and use cheaper more compact designs. A significant challenge in this process is to incorporate an enhanced performance, higher reliability and longer product life-times. ***Objectives: The size, cost and lifetime of power electronic converters are often associated with their use of cooling systems and electrical filter components such as capacitors and inductors. The cooling systems are often linked to the power semiconductor technology being used and the nature of the circuits that best suit their characteristics. The capacitor is a relatively cheap, compact and widely used component in many industrial power electronics, but can suffer from short lifetimes and potential failure. Alternatively, inductors are regarded as being reliable with long lifetimes, but suffer from being naturally large, heavy and costly. The basic technical research objective of this research program is to use innovations in power electronic circuit topologies to reduce the size of these three components, resulting in more compact, higher performance products with a higher reliability and lower cost. ***Novelty: For each application being considered, innovations in power electronic circuit topologies will be achieved using the following circuit concepts: multi-functional power converters; coupled inductors using multi-limb cores and low magnetic flux densities; floating capacitor converters using multi power conversion techniques with a lower total capacitance; hybrid power electronic topologies using both coupled inductors and floating capacitor modules; advanced pwm switching techniques. New power converter designs will be also be examined that take advantage of recent advances in power semiconductor device technology (SiC and GAN). These devices are expected to change the nature of many power electronic converters over the next 10 years.?***Significance: This research program will contribute to more economic, more reliable and more efficient electrical power conversion systems in applications such as clean energy electrical power generation, energy storage systems, electric transportation and industrial processes. The Canadian economy will benefit from the creation of intellectual property and the training of highly qualified personnel with skills associated with the technology of efficient, reliable and cost effective electrical power conversion systems.