Data Center Power System Stability-Part I: Power Supply Impedance Modeling
作者机构：Rensselaer Polytechnic Institute-ECSE1108th Street Room CII 8015Troy 12180United States Meta Platforms Inc.1601 Willow RdMenlo ParkCalifornia 94025-1452United States
出 版 物：《CSEE Journal of Power and Energy Systems》 (中国电机工程学会电力与能源系统学报（英文）)
年 卷 期：2022年第8卷第2期
页 面：403-419页
核心收录：
学科分类：080802[工学-电力系统及其自动化] 0808[工学-电气工程] 081203[工学-计算机应用技术] 08[工学] 0835[工学-软件工程] 0812[工学-计算机科学与技术（可授工学、理学学位）]
主 题：Data center power systems frequency-domain methods impedance modeling system stability system resonance
摘 要：This two-part paper presents methods to predict,characterize and ensure the stability of data center power systems based on impedance *** work was motivated by recent power system resonance incidents in new data *** I presents new input impedance models for single-phase power supply units(PSUs)to enable this *** impedance models of single-phase PSU cannot meet the requirements of this application because they exclude DC voltage control that affects system stability at low frequency,or are in a dq reference frame that cannot handle the complexity of data center power *** developed new models include DC bus dynamics and are directly in the phase domain to simplify system stability analysis,avoiding the need for multiple-input-multiple-output(MIMO)system models and the generalized Nyquist criterion that are difficult to apply but necessary with dq-frame *** the converter and system level models also include the coupled current response that is characteristic of AC-DC converters and important for system stability at low *** simple form of the models and system stability analysis directly in the phase domain also make it possible to develop new PSU design methods and performance specifications that together will ensure the stability of new data center power *** developed models are validated by laboratory measurements and are used in Part II of the work to study data center power system stability.
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