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

简介：电力电子设备是电力系统中许多应用的关键部件。该计划将侧重于以下应用：电力运输；清洁能源(风能和光伏)；电池储能系统；大功率和高速变频驱动。电力电子电路设计的许多方面都在逐年改进。核心目标通常是提高电力转换效率，并使用更便宜、更紧凑的设计。这一过程中的一个重大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在一起。目的：电力电子变流器的尺寸、成本和寿命往往与其冷却系统以及电容器和电感等电子滤波元件的使用有关。冷却系统通常与所使用的电力半导体技术和最适合其特点的电路的性质有关。电容器是一种相对便宜、紧凑且在许多工业电力电子器件中广泛使用的元件，但存在寿命短和潜在故障的问题。或者，电感被认为是可靠的，使用寿命长，但存在自然大、笨重和昂贵的问题。这项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缩小这三个元件的尺寸，从而以更高的可靠性和更低的成本制造更紧凑、更高性能的产品。新颖性：对于所考虑的每种应用，将使用以下电路概念实现电力电子电路拓扑的创新：多功能功率转换器；使用多臂铁心和低磁通密度的耦合电感；使用总电容更低的多功率转换技术的浮动电容转换器；使用耦合电感和浮动电容器模块的混合电力电子拓扑；先进的PWM开关技术。还将研究利用电力半导体器件技术(碳化硅和氮化镓)的最新进展的新的功率转换器设计。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：这项研究计划将有助于在清洁能源发电、能源储存系统、电力运输和工业过程等应用中实现更经济、更可靠和更高效的电力转换系统。加拿大经济将受益于知识产权的创造和高素质人员的培训，这些人员具有与高效、可靠和具有成本效益的电力转换系统技术相关的技能。

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.