Efficiency Investigation of A Protection and Correction Solid State Device for Low-Voltage Distribution Networks

Ioannou, Stelios; Marouchos, C. C.; Darwish, Mohamed; Putrus, Ghanim

doi:10.1109/upec.2019.8893523

Cited by 7 publications

(5 citation statements)

References 14 publications

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“…It should be noted that the input inductor was 3 mH and the one at the output 92.4 μH. The output inductor design was optimized to minimize losses based on [18], [19]. Initially, the AC to DC part of the multicell rectifier was simulated with the remaining parts of the PSU in single-cell structure.…”

Section: Justification Of Ac To DC Multicell Selectionmentioning

confidence: 99%

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

Chrysostomou¹,

Christofides²,

Ioannou³

et al. 2021

Preprint

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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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Section: Justification Of Ac To DC Multicell Selectionmentioning

confidence: 99%

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

Chrysostomou¹,

Christofides²,

Ioannou³

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…It should be noted that the input inductor was 3 mH and the one at the output 92.4 μH. The output inductor design was optimized to minimize losses based on [21], [22]. Table 1 shows that the total converter losses for the 200 W load output are 8.38 W and the efficiency comes out therefore to be 95.81%.…”

Section: Justification Of Ac To DC Multicell Selectionmentioning

confidence: 99%

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

Chrysostomou¹,

Christofides²,

Ioannou³

et al. 2021

Preprint

View full text Add to dashboard Cite

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.

show abstract

“…It should be noted that the input inductor was 3 mH and the one at the output was 92.4 µH. The output inductor design was optimized to minimize losses based on [25,26]. Table 1 shows that the total converter losses for the 200 W load output are 8.38 W and the efficiency is therefore 95.81%.…”

Section: Justification Of Ac To DC Multicell Selectionmentioning

confidence: 99%

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

et al. 2021

View full text Add to dashboard Cite

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.

show abstract

Efficiency Investigation of A Protection and Correction Solid State Device for Low-Voltage Distribution Networks

Cited by 7 publications

References 14 publications

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

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

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

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

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