Multicell Power Supplies for Improved Energy Efficiency in the Information and Communications Technology Infrastructures

The rapid growth of the Information and Communications Technology (ICT) sector requires additional infrastructure, such as more micro-datacenters and telecom stations, to support the higher internet speeds and low latency requirements of 5G networks. The increased power requirements of the new ICT technologies necessitate the proposal of new power supplies, in an attempt to support the increase in energy demand and running costs. This work provides an in-depth theoretical analysis on the losses of the individual stages of commercially available PSU and proposes a new multicell PSU, the buck PFC converter, which offers a higher overall efficiency at varying load levels. The theoretical results are verified using simulation results, via a PSIM Thermal Module, and using experimental data. The results indicate that multicell structures can improve the overall PSU efficiency by 1.2% at 50% rated power and more than 2.1% at full power. Finally, taking into consideration the economic implications of this study, it is shown that the proposed multicell structure may increase the PSU costs by 10.78%, but the payback period is in the order of just 3.3 years.

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Multicell Power Supplies for Improved Energy Efficiency in the Information and Communications Technology Infrastructures

10.20944/preprints202106.0380.v2 ◽

2021 ◽

Author(s):

Michael Chrysostomou ◽

Nicholas Christofides ◽

Stelios Ioannou ◽

Alexis Polycarpou

Keyword(s):

Energy Demand ◽

Information And Communications Technology ◽

Power Supplies ◽

Communications Technology ◽

Cell Structures ◽

Full Power ◽

Overall Efficiency ◽

Simulation Results ◽

The Individual ◽

Theoretical Results

The rapid growth of the Information and Communications Technology (ICT) sector requires additional infrastructure, such as more micro-datacenters and telecom stations, to support the higher internet speeds and low latency requirements of 5G net-works. The increased power requirements of the new ICT technologies necessitate the proposal of new power supplies in an attempt to retain the increase in energy demand and running costs. This work provides an in-depth theoretical analysis on the losses of the individual stages of commercially available PSU and proposes a new multicell PSU, Buck-PFC converter, which offers a higher overall efficiency at varying load levels. The theoretical results are verified using simulation results, via PSIM Thermal Module, and using experimental data. The results indicate that multi-cell structures can improve the overall PSU ef-ficiency by 1.2% at 50% rated power and more than 2.1% at full power. Finally, taking into consideration the economic implica-tions of this study, it is shown that the proposed multicell structure may increase the PSU costs by 10.78% but the payback pe-riod is in the order of just 3.3 years.

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Multicell Power Supplies for Improved Energy Efficiency in the Information and Communications Technology Infrastructures

10.20944/preprints202106.0380.v1 ◽

2021 ◽

Author(s):

Michael Chrysostomou ◽

Nicholas Christofides ◽

Stelios Ioannou ◽

Alexis Polycarpou

Keyword(s):

Energy Efficiency ◽

Power Supply ◽

Rapid Growth ◽

Energy Demand ◽

Information And Communications Technology ◽

Power Supplies ◽

Low Latency ◽

Communications Technology ◽

5G Networks ◽

Supply Systems

The rapid growth of the Information and Communications Technology (ICT) sector requires additional infrastructure, such as more micro-datacenters and telecom stations, to support the higher internet speeds and low latency requirements of 5G networks. The increased power requirements of the new ICT technologies necessitate the proposal of new power supplies in an attempt to retain the increase in energy demand and running costs. The work analyses how multicell structured power supply units can increase the energy efficiency of the power supply systems and thus minimize running costs of ICT networks. The effect of multicell structures in energy efficiency improvements is verified experimentally and through simulations in PSIM’s thermal module. A new multicell Power Supply Unit (PSU) is proposed for ICT power supplies and it is shown that using multicell structures, higher efficiency at varying load levels can be achieved.

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Laboratorio virtual de networking como infraestructura tecnológica estratégica para realización de prácticas de redes de computadoras y seguridad informática.

Tecnología Educativa Revista CONAIC ◽

10.32671/terc.v6i3.100 ◽

2020 ◽

Vol 6 (3) ◽

pp. 21-26

Author(s):

V.V. Cabañas Victoria ◽

J. Vázquez Castillo ◽

M. Blanqueto Estrada ◽

L.Y. Dávalos Castilla

Keyword(s):

Accreditation Process ◽

Information And Communications Technology ◽

Power Supplies ◽

Communications Technology ◽

Virtual Infrastructure ◽

Computer Equipment ◽

Physical Infrastructure ◽

Uninterruptible Power Supplies ◽

Uninterruptible Power ◽

Multiple Scenarios

El presente trabajo propone una infraestructura de redes virtualizada como opción viable y factible para las Instituciones de Educación Superior que desean el reconocimiento por la buena calidad de sus programas educativos en el área de las tecnologías de información y comunicación. Un elemento importante de la evaluación es la infraestructura. Sin embargo, no todas las IES poseen una infraestructura física de redes (instalaciones, equipos de telecomunicaciones activos, bastidores, UPS, etc.) y requieren que los estudiantes accedan a estos recursos tecnológicos para realizar prácticas con equipos de cómputo, de conmutación, ruteo y uso de dispositivos de seguridad perimetral. La infraestructura virtualizada que se propone en este artículo tiene como principales características la escalabilidad y reconfigurabilidad para diversos escenarios de infraestructurasde red. This paper proposes a virtual network infrastructure as a resource for universities and/or colleges aiming to obtain accreditation for their programs in information and communications technology. One of the most important aspects considered in the accreditation process includes the evaluation of available infrastructure. However, not all universities and/or colleges have a physical infrastructure of networks available (e.g., facilities, active telecommunications equipment, racks, and uninterruptible power supplies [UPS]). A second emphasis in evaluations is on students' access and use of technological resources to perform networking practices with computer equipment, switching, routing and perimeter security devices. The main characteristics of the virtual infrastructure proposed in this paper include the scalability and reconfigurability of multiple scenarios in network infrastructures.

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