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Ultra-efficient Power Delivery Architecture and Topologies for IT Systems (UPDATE-IT)

适用于 IT 系统的超高效供电架构和拓扑 (UPDATE-IT)

基本信息

批准号：
1810470
负责人：
Hanh-Phuc Le
金额：
$ 36.74万
依托单位：
University of Colorado at Boulder
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：
2018-06-01 至 2020-09-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1810470&HistoricalAwards=false
关键词：
Ultra efficient Power Delivery Architecture

项目摘要

Data centers, the backbone of today's information era, are expected to consume ~73 billion kWh in 2020, which amounts to ~$7.3 billion in electricity cost in the U.S. alone. This is one of the fastest growing loads on the electric grid in the U.S. as well as worldwide, because of customers' soaring demands for online data and cloud computing. This rapid-increasing consumption significantly contributes to global carbon emissions. Therefore, updating the power delivery for data centers with improved efficiency is an important societal need. The goal of this project is to address this power consumption bottleneck by using a new power distribution and conversion architecture that is compact, scalable, ultra-efficient, low-heat, low-cost, and reliable. If successful, a wide application of the proposed system could result in more than 8.1 billion kWh or ~$810 million annual savings in electricity consumption for data centers in the U.S. alone. These savings would, in turn, reduce harmful greenhouse gas emission of ~1.3 million passenger cars from U.S. roads. The impact can be further amplified by adoptions of the proposed system and its sub-systems in other information technology applications, such as communication systems, automotive, high-performance portable devices, etc. The research will be conducted by graduate students and undergraduate students who will be equipped with the knowledge and skills in integrated power electronics and energy efficiency for future opportunities in both professional and educational development. The research will also involve educational efforts including official curriculum offerings and outreach activities to K-12 students.To achieve the research goal, the team will explore a radically different power distribution and management architecture for future green data centers and other information technology systems. Employing new converter topologies that can efficiently support large conversion ratios, the architecture reduces the number of power conversion stages from the grid to core voltages from four or more to only two. The first stage, converting grid AC voltage to a DC bus voltage, electrically stack server boards in close proximity in a server rack to allow each of them to handle only a fraction of the input grid AC voltage, leading to ultra-high power conversion efficiency, low cost and high reliability. This first conversion stage also exploits a novel, experimentally validated smart-cable method that can significantly reduce on-board heat, leading to substantial thermal management cost reductions. For the second stage converting the DC bus to core voltages, the research team will explore a new direct-conversion hybrid DC-DC converter topology family to enable superior efficiency and power density at extremely large conversion ratios. The research plan includes design, fabrication, and verification of multiple new hybrid converter topologies, integrating different types of AC-DC and DC-DC hybrid converters, smart-cable solution design and implementation, system failure protection circuit implementation and test, system scaling for different specifications and applications, and benchmarking against existing solutions.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.

数据中心是当今信息时代的支柱，预计到2020年将消耗约730亿千瓦时的电力，仅在美国就相当于约73亿美元的电力成本。由于客户对在线数据和云计算的需求飙升，这是美国乃至全球电网中增长最快的负荷之一。这种快速增长的消费大大增加了全球碳排放。因此，更新数据中心的电力传输以提高效率是一项重要的社会需求。该项目的目标是通过使用一种紧凑、可扩展、超高效、低热量、低成本和可靠的新型电源分配和转换架构来解决这一功耗瓶颈。如果成功的话，该系统的广泛应用仅在美国就可以为数据中心每年节省超过81亿千瓦时或约8.1亿美元的电力消耗。这些节省将反过来减少美国道路上约130万辆乘用车的有害温室气体排放。如果在通信系统、汽车、高性能便携式设备等其他信息技术应用中采用拟议的系统及其子系统，则可进一步扩大其影响。该研究将由研究生和本科生进行，他们将具备综合电力电子和能源效率方面的知识和技能，为未来的专业和教育发展提供机会。这项研究还将涉及教育方面的努力，包括官方课程的提供和对K-12学生的推广活动。为了实现研究目标，该团队将为未来的绿色数据中心和其他信息技术系统探索一种完全不同的配电和管理架构。采用能够有效支持大转换率的新型转换器拓扑结构，该架构将从电网到核心电压的功率转换阶段从四个或更多减少到只有两个。第一阶段，将电网交流电压转换为直流母线电压，在服务器机架中近距离堆叠服务器板，使每个服务器板仅处理输入电网交流电压的一小部分，从而实现超高的功率转换效率、低成本和高可靠性。第一个转换阶段还采用了一种新颖的、经过实验验证的智能电缆方法，可以显著降低车载热量，从而大幅降低热管理成本。在将直流母线转换为核心电压的第二阶段，研究团队将探索一种新的直接转换混合DC-DC转换器拓扑家族，以在极高的转换比下实现卓越的效率和功率密度。研究计划包括设计、制造和验证多种新型混合转换器拓扑结构，集成不同类型的AC-DC和DC-DC混合转换器，智能电缆解决方案设计和实现，系统故障保护电路实现和测试，不同规格和应用的系统扩展，以及针对现有解决方案的基准测试。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

期刊论文数量（8）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

A 120V-to-1.8V 91.5%-Efficient 36-W Dual-Inductor Hybrid Converter with Natural Soft-charging Operations for Direct Extreme Conversion Ratios

A%20120V-to-1.8V%2091.5%-效率%2036-W%20双电感%20Hybrid%20转换器%20with%20Natural%20软充电%20Operations%20for%20Direct%20Extreme%20Conversion%20比率

DOI：
10.1109/ecce.2018.8557854
发表时间：
2018
期刊：
2018 IEEE Energy Conversion Congress and Exposition (ECCE
影响因子：
0
作者：
Das, Ratul;Seo, Gab-Su;Le, Hanh-Phuc
通讯作者：
Le, Hanh-Phuc

Dual Inductor Hybrid Converter for Point-of-Load Voltage Regulator Modules

用于负载点稳压器模块的双电感混合转换器

DOI：
10.1109/tia.2019.2941945
发表时间：
2020
期刊：
IEEE Transactions on Industry Applications
影响因子：
4.4
作者：
Seo, Gab-Su;Das, Ratul;Le, Hanh-Phuc
通讯作者：
Le, Hanh-Phuc

Multiphase Control for Robust and Complete Soft-charging Operation of Dual Inductor Hybrid Converter

双电感混合转换器鲁棒且完整的软充电操作的多相控制

DOI：
发表时间：
2019
期刊：
2019 IEEE Applied Power Electronics Conference and Exposition (APEC
影响因子：
0
作者：
Xie, Tianshi;Das, Ratul;Seo, Gab-Su;Maksimovic, Dragan;and Le, Hanh-Phuc
通讯作者：
and Le, Hanh-Phuc

Demystifying Capacitor Voltages and Inductor Currents in Hybrid Converters

揭秘混合转换器中的电容器电压和电感器电流

DOI：
10.1109/compel.2019.8769722
发表时间：
2019
期刊：
2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL
影响因子：
0
作者：
Das, Ratul;Celikovic, Janko;Abedinpour, Siamak;Mercer, Mark;Maksimovic, Dragan;Le, Hanh-Phuc
通讯作者：
Le, Hanh-Phuc

A Regulated 48V-to-1V/100A 90.9%-Efficient Hybrid Converter for POL Applications in Data Centers and Telecommunication Systems

A%20稳压%2048V至1V/100A%2090.9%高效%20混合%20转换器%20for%20POL%20应用%20in%20数据%20中心%20和%20电信%20系统