Technology development for high efficiency LLC DC-DC converter for server rectifier application with digital control and multi-phase interleaving

用于具有数字控制和多相交错的服务器整流器应用的高效 LLC DC-DC 转换器的技术开发

• 批准号: 436855-2012
• 负责人: Liu, YanFei
• 金额: $ 5.83万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=574357
• 关键词: Technology; development; efficiency; LLC; DC

With the exponential growth in internet applications, more and more data centers (including servers, data storage, cloud storage, etc) have been built to process the ever-increasing network traffic. These data centers consume considerable amounts of electrical energy, about 1.5% of the total electricity generated in US. It is estimated by the US Environmental Protection Agency that the peak load of data centers in the US alone was 12 Giga Watt in 2011. Rectifiers are used to power the data centers, which consist of two stages. One is AC to DC converter with power factor correction that converts the input AC voltage (120V or 220V) into a 400V DC. The other is a DC to DC converter that converts the 400V into 12V which is fed into the mother board of the data center. It is also noted that depending on the customer usage, the power consumption of the data center varies significantly with network traffic. New technologies should be developed to ensure that the system operates at close to its peak efficiency level under all the load conditions. The objective of this research project is to develop new technologies for a high efficiency DC - DC converter that will meet Energy Star 80 PLUS Titanium standard for server rectifiers. With completion of this project, the Toronto design center of Murata Power Solutions will be able to design the most efficient data center power supply in the world and expand its sales volume in this market.

随着Internet应用程序的指数增长，已经构建了越来越多的数据中心（包括服务器，数据存储，云存储等）来处理不断增加的网络流量。这些数据中心消耗了大量的电能，约占美国产生的总电力的1.5％。美国环境保护局估计，仅美国数据中心的峰值负载是2011年的12兆瓦。 整流器用于为数据中心提供动力，该数据中心由两个阶段组成。一个是AC到DC转换器，具有功率因数校正，将输入AC电压（120V或220V）转换为400V DC。另一个是直流转换器的直流转换器，将400V转换为12V，该转换为12V，该转换为数据中心的母板。 还注意到，根据客户使用情况，数据中心的功耗随着网络流量而差异很大。应开发新技术，以确保系统在所有负载条件下以接近其峰值效率水平的水平运行。 该研究项目的目的是为高效率DC -DC转换器开发新技术，该技术将符合Energy Star 80加上服务器整流器的钛标准。 随着该项目的完成，Murata Power Solutions的多伦多设计中心将能够设计世界上最有效的数据中心电源并扩大该市场的销量。