A Ultra Efficient Composite Modularized Power Delivery Architecture for Solar Farm and Data Center

适用于太阳能发电场和数据中心的超高效复合模块化供电架构

• 批准号: 1810428
• 负责人: Dong Cao
• 金额: $ 30万
• 依托单位: North Dakota State University Fargo
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-08-15 至 2020-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1810428&HistoricalAwards=false
• 关键词: Ultra; Efficient; Composite; Modularized; Power

Abstract: Currently, the electricity usage of the data centers in the US is about 2% of all the electricity consumed, which is about 75 billion kWh. About 20% of electricity used in the data center has been wasted and becomes heat in the power delivery stage. The successful implementation of the proposed power delivery architecture is able to significantly reduce the data-center electricity consumption, which can reduce the electricity bills around 750 million annually. It can also increase the power delivery density on the computer motherboard, it could lead to about 50% footprint reduction of the whole data center facility. This concept can also enable more efficient and cheaper power delivery for solar farms and electric vehicles. This project will support the new course development utilizing wide bandgap power semiconductor devices, and train the future power electronic application engineers through lab modules, and various senior design projects. This project will also help to increase the K-12 students and the native America students interests in the energy efficiency and renewable energy area through various outreach programs, such as high school STEM day, nurturing American tribal undergraduate research and education, and governor schools.The goal of the proposed effort is to develop a composite modular power delivery architecture that is able to fully leverage the benefits of the wide bandgap power semiconductor devices and to support the future ultra high density power delivery applications, such as data center, solar farm, electric vehicle, electric grid modernization etc. It will also help enable the future 3D integrated power delivery. The proposed new architecture includes the following features, such as 1) modularized structure that each module only process high voltage side low current and low side voltage, 2) achieving soft-switching for all the switches, 3) achieving voltage fine regulation with minimal effort through partial power processing voltage regulation module, 4) leveraging the high frequency wide bandgap devices, 5) applicable to all power conversion structures e.g. DC-DC, DC-AC, AC-DC, AC-AC, 6) and achieving fault tolerance and agile reconfiguration features. The tasks of the project include, 1) Generate a universal time-domain analytical model for the proposed composite power delivery architecture for analysis, design, and comparison. 2) develop an adaptive switching control strategy and the resonant impedance network model to accomdate device and component tolerance for different operation conditions. 3) Develop a system level small signal model and an optimal module transition control strategy for the operation and smooth transition including start-up and fault ride through bypass. 4) Investigate and develop the minimal power processed voltage regulation module topology, control strategy for output DC voltage fine regulation, or sinusoid AC voltage generation for grid connected application. 5) Validate the proposed concept with above features through a series of DC-DC converter and DC-AC inverter hardware prototypes utilizing wide bandgap power devices.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

摘要：目前，美国数据中心的用电量约为750亿千瓦时，约占全国用电量的2%。数据中心约有20%的电力被浪费，并在电力输送阶段变成热量。所提出的供电架构的成功实施可以显著降低数据中心的用电量，每年可减少约7.5亿美元的电费。它还可以增加计算机主板上的功率传输密度，它可以使整个数据中心设施的占地面积减少约50%。这一概念还可以为太阳能农场和电动汽车提供更高效、更便宜的电力输送。本项目将支持利用宽带隙功率半导体器件的新课程开发，并通过实验模块和各种高级设计项目培养未来的电力电子应用工程师。该项目还将通过各种外展项目，如高中STEM日、培养美国部落本科生研究和教育以及州长学校，帮助提高K-12学生和美国原住民学生对能源效率和可再生能源领域的兴趣。提出的努力目标是开发一种复合模块化电力传输架构，能够充分利用宽带隙功率半导体器件的优势，并支持未来的超高密度电力传输应用，如数据中心、太阳能发电场、电动汽车、电网现代化等。它还将有助于实现未来的3D集成电力输送。提出的新架构包括以下特点：1)模块化结构，每个模块只处理高压侧低电流和低侧电压；2)实现所有开关的软开关；3)通过部分功率处理稳压模块实现最小的电压精细调节；4)利用高频宽带隙器件；5)适用于DC-DC、DC-AC、AC-DC、AC-AC等所有功率转换结构。6)实现容错和敏捷重构特性。该项目的任务包括：1)为提出的复合电力传输架构生成通用时域分析模型，用于分析、设计和比较。2)开发自适应开关控制策略和谐振阻抗网络模型，以适应不同操作条件下器件和元件的容差。3)建立系统级小信号模型和优化模块过渡控制策略，以实现包括启动和故障通过旁路在内的运行和平稳过渡。4)研究和开发最小功率处理电压调节模块拓扑结构，输出直流电压精细调节控制策略，或并网应用的正弦交流电压产生。5)通过一系列使用宽带隙功率器件的DC-DC变换器和DC-AC逆变器硬件原型验证具有上述特征的提出的概念。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Development of a 100 kW SiC Switched Tank Converter for Automotive Applications

开发用于汽车应用的 100 kW SiC 开关储能转换器

• 发表时间: 2019
• 期刊: 2019 IEEE Energy Conversion Congress and Exposition (ECCE
• 作者: Ni, Ze;Li, Yanchao;Liu, Chengkun;Wei, Mengxuan;Cao, Dong
• 通讯作者: Cao, Dong

Optimal Operation of Multilevel Modular Resonant Switched-Capacitor Converter

多电平模块化谐振开关电容变换器的优化运行

• DOI: 10.1109/wipda.2018.8569135
• 发表时间: 2018
• 期刊: 2018 IEEE 6th Workshop on Wide Bandgap Power Devices and Applications (WiPDA
• 作者: Li, Yanchao;Ni, Ze;Cao, Dong
• 通讯作者: Cao, Dong

A GaN Switched Tank Converter with Partial Power Voltage Regulation for Electric Vehicle Applications

适用于电动汽车应用的具有部分电源电压调节功能的 GaN 开关储能转换器

• DOI: 10.1109/apec.2019.8722301
• 发表时间: 2019
• 期刊: 2019 IEEE Applied Power Electronics Conference and Exposition (APEC
• 作者: Ni, Ze;Li, Yanchao;Johnson, Jalen;Wei, Mengxuan;Liu, Chengkun;Lyu, Xiaofeng;Cao, Dong
• 通讯作者: Cao, Dong

A 100-kW SiC Switched Tank Converter for Transportation Electrification

• DOI: 10.1109/tpel.2019.2954801
• 发表时间: 2019-06
• 期刊: IEEE Transactions on Power Electronics
• 影响因子: 6.7
• 作者: Ze Ni;Yanchao Li;Chengkun Liu;Mengxuan Wei;Dong Cao

An Isolated Composite Resonant Multilevel Converter with Partial Power Voltage Regulation for Telecom Application

• DOI: 10.1109/ecce.2018.8557462
• 发表时间: 2018-09
• 期刊: 2018 IEEE Energy Conversion Congress and Exposition (ECCE)
• 作者: Yanchao Li;X. Lyu;Ze Ni;Jalen Johnson;Dong Cao