A new solar DC optimizer based on advanced GaN devices

基于先进 GaN 器件的新型太阳能直流优化器

基本信息

批准号：
530274-2018
负责人：
Pahlevaninezhad, Majid
金额：
$ 1.82万
依托单位：
University of Calgary
依托单位国家：
加拿大
项目类别：
Engage Grants Program
财政年份：
2018
资助国家：
加拿大
起止时间：
2018-01-01 至 2019-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=661402
关键词：
new solar DC optimizer based

项目摘要

Solar energy offers a very clean and practical option for power generation to end-users. In particular, rooftop Photo-Voltaic (PV) panels have become widely accepted as a means to fulfill residential energy demand. PV panels convert solar energy to electricity. Then, power electronic converters are used to convert the electricity produced by PV panels to compatible power for various loads. An efficient architecture for these power electronic converters is a solar DC optimizer. The main task of solar DC optimizers is to track the maximum power point of PV panels. This architecture offers many advantages over other configurations such as low-cost and high efficiency. Silicon (Si)-based power semiconductors (i.e., MOSFETs) are commonly used in order to implement existing solar DC optimizers. Even though Si switches offer many advantages such as reliability and low cost, they cannot provide efficient ultra-fast switching performance and low conduction losses. Next-generation power semiconductors are based on Gallium Nitride (GaN) technology, which is able to offer superior switching and conduction performance. Currently, their usage is limited due to their higher cost and lower reliability compared to Si switches. In this research project, a new GaN-based solar DC optimizer will be designed and developed, which is able to offer higher performance in terms of efficiency and power density.

太阳能为最终用户提供了一种非常清洁且实用的发电选择。特别是，屋顶光伏（PV）面板作为满足住宅能源需求的一种手段已被广泛接受。光伏板将太阳能转化为电能。然后，电力电子转换器用于将光伏板产生的电力转换为各种负载兼容的电力。这些电力电子转换器的高效架构是太阳能直流优化器。太阳能直流优化器的主要任务是跟踪光伏电池板的最大功率点。与其他配置相比，该架构具有许多优势，例如低成本和高效率。硅 (Si) 基功率半导体（即 MOSFET）通常用于实施现有的太阳能直流优化器。尽管硅开关具有可靠性和低成本等许多优点，但它们无法提供高效的超快速开关性能和低传导损耗。下一代功率半导体基于氮化镓 (GaN) 技术，能够提供卓越的开关和传导性能。目前，与硅开关相比，由于成本较高且可靠性较低，其使用受到限制。在该研究项目中，将设计和开发一种新型的基于GaN的太阳能直流优化器，它能够在效率和功率密度方面提供更高的性能。