High-frequency AC power distribution in Space Station

Tsai, Fu-Sheng; Lee, F.C.Y.

doi:10.1109/7.53457

Cited by 29 publications

(10 citation statements)

References 3 publications

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“…Power conversion efficiency, power density, and system stability are impacted by the multiple power conversion stages. NASA has first proposed the concept of high-frequency AC (HFAC) power distribution system for astronautics applications, with the objectives of reduce size and weight, minimize both system complexity and the total power conversion steps [1], [2]. The conceptual system diagram is shown in Figure 3.…”

Section: Introductionmentioning

confidence: 99%

High-frequency AC distributed power delivery system

Wang

Huang

2016

2016 IEEE Applied Power Electronics Conference and Exposition (APEC)

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A novel high-frequency-AC (HFAC) distributed power delivery system is presented in this paper. The target applications of the proposed system are the aerial and ground transportation, and renewable energy systems. Unlike traditional line-frequency-AC (LFAC) or DC distributed power delivery system, the bus frequency of the proposed system can be set at tens or hundreds of kilo-Hertz, so as the power transmission frequency. As a result, 50 or 60 Hz transformers will be eliminated from the system. DC arcing flash will not exist as well with the utilization of HFAC bus. In this paper, single-stage isolated bi-directional power electronics interfaces are developed which enables distributed AC and DC sources or loads to access the main HFAC bus. Soft-switching is also realized for all the semiconductor devices in the power electronics interface. Distributed control architecture is developed so that each source or load can operate independently. Simulation results are provided to validate the distributed control architecture. A scaled-down hardware demonstration, with the bus specification of 54 kHz and 400 VAC, is presented to validate the proposed architecture of the HFAC distributed power delivery system.

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Section: Introductionmentioning

confidence: 99%

High-frequency AC distributed power delivery system

Wang

Huang

2016

2016 IEEE Applied Power Electronics Conference and Exposition (APEC)

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“…High-Frequency AC (HFAC) power distribution system was first proposed by NASA for space applications some 45 years ago [14], [15]. The HFAC power distribution approach offers several advantages over the conventional DC power distribution approach, which makes it an attractive solution for many applications such as telecommunications and computers.…”

Section: High-frequency Ac (Hfac) Power Distribution System For Tmentioning

confidence: 99%

A Review of the Power Distribution System in the Telecommunications Sector

Gogoi¹

2018

IJASRE

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The telecommunications sector consumes a significant amount of power from the electric utility grid for its functioning. In a typical telecommunications center, about half the energy consumed is delivered to the load, with the rest is lost in power conversion, distribution and cooling processes. Higher voltage DC is, thus being proposed as an energy efficient distribution option.This paper takes a look at the -48 V power distribution widely used for providing power to telecommunication equipment, and at the methodology used for grounding and bonding of both the power system and the powered telecommunication system. An analysis of the benefits of the +380V DC power distribution system compared to the current -48V DC power supply system in telecommunications sector is also presented. High-frequency AC (HFAC) power distribution systems have also been the subject of great interest. This paper also presents a review of the different HFAC power distribution architectures and is focused on the HFAC power architectures and topologies for the telecommunications system. This paper also presents the concept of green telecommunication networks and provides

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“…High frequency alternating current (HFAC) systems are widely applied for induction heating [1], aerospace [2], vehicles [3], microgrids [4] [5], power distribution systems [6]- [8], telecommunication [9], computer power supplies [9] and medium/high voltage gate driving systems [10] owing to their merits of simple transforming structure, low cost and low component count, and effective ground noise isolation [10].…”

Section: Introductionmentioning

confidence: 99%

“…A common topology for single-phase systems is the H-bridge [2] [see Fig. 1(a)], which is also refers to as the full bridge [10] or the buck inverter [11].…”

Section: Introductionmentioning

confidence: 99%

High frequency inverter topologies integrated with the coupled inductor bridge arm

Hu¹,

Ji²,

Finney

et al. 2016

IET Power Electronics

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-A new topology of the high frequency AC (HFAC) inverter bridge arm is proposed which comprises a coupled inductor, a switching device and an active clamp circuit. Based on it, new single-phase and three-phase inverters are proposed and their operating states are analyzed along with the traditional H-bridge inverter.Multi-phase and multi-level isolated inverters are also developed using the HFAC bridge arm. Furthermore, based on the proposed HFAC, a frond-end DC-DC converter is also developed for photovoltaic (PV) systems to demonstrate the application of the proposed HFAC converter. Simulation and experimental results from prototype converters are carried out to validate the proposed topologies which can be utilized widely in high frequency power conversion applications such as induction heating and wireless power transfer.

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High-frequency AC power distribution in Space Station

Cited by 29 publications

References 3 publications

High-frequency AC distributed power delivery system

High-frequency AC distributed power delivery system

A Review of the Power Distribution System in the Telecommunications Sector

High frequency inverter topologies integrated with the coupled inductor bridge arm

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