A High-Power-Density Converter With a Continuous Input Current Waveform for Satellite Power Applications

Lee, Nayoung; Lee, Juyoung; Cheon, Yee-Jin; Han, Sang‐Kyoo; Moon, Gun-Woo

doi:10.1109/tie.2019.2898584

Cited by 13 publications

(9 citation statements)

References 22 publications

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“…Additionally, the reduced mass, high efficiency, and provision of high-power quality are strictly required. These stringent requirements have narrowed down the choices to conventional converter topologies due to their inherent simplicity and the minimum number of components [57], [58]. To overcome these barriers selection of radiation hardened components, their mechanical dimensions and thermal analysis to withstand in vacuum environment must be considered.…”

Section: A Dc-dc Convertersmentioning

confidence: 99%

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A Comprehensive Review on Small Satellite Microgrids

Yaqoob

Lashab

Vasquez

et al. 2022

IEEE Trans. Power Electron.

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The Small Satellite (SmallSat) industry has recorded incredible growth recently. Within this class, among Mini-, Micro-, and Nanosatellites, the Cube Satellite (CubeSat) is primed for an explosion of growth. These satellites are fascinating for remote sensing, earth observation, and scientific applications. Remarkable attention from the space operators makes it valuable because of its low cost, cubic shape, less manufacturing time, lightweight, and modular structure. Among the various subsystems comprising the SmallSat, the Electrical Power System (EPS) is the most crucial one because unreliable power supply to the rest is most of the time detrimental to the mission. The EPS is formed by electrical sources, storage units, and loads, all interconnected via different power converters, the operation of which must be closely orchestrated to accomplish efficient use of photovoltaic power, optimal battery management, and resilient power delivery. At the same time, the EPS design must address a series of challenges such as size restrictions, high power density, harsh space environments (e.g., atomic oxygen, radiation, and extreme temperatures) which significantly impact the EPS electrical and electronic equipment. In terms of power systems, a SmallSat EPS can be considered a space microgrid owing coordination and control of distributed generation (DG), storage and loads in a small-scale electrical network. From this point of view, this paper reviews and explores SmallSat microgrid's research developments, energy transfer and architectures, converter topologies, latest technologies, main challenges, and some potential solutions which will enable building a more robust, resilient, and efficient EPS. The research gaps and future developments are underlined before the paper is concluded.

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Section: A Dc-dc Convertersmentioning

confidence: 99%

“…[67], [58] [74], [76] [77], [78] eV for GaN [50], [81], [82]. Additionally, enhancement-mode GaN (eGaN) transistors are more suitable for high-efficiency converter designs due to on-state resistance, output capacitance, and small gate charge [50].…”

Section: Unidirectional [61] [63] [65]mentioning

confidence: 99%

A Comprehensive Review on Small Satellite Microgrids

Yaqoob

Lashab

Vasquez

et al. 2022

IEEE Trans. Power Electron.

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“…T HE DC-DC converters are devices that play a fundamental role in the proper operation of microgrids [1]- [3], electric vehicles [4], [5] and satellite applications [6], [7]. For this reason, many advanced studies that are entirely focused on either presenting a new topology or even better describing and exploring an existing topology in terms of modeling and non-ideal analyses have been appearing from the beginning of power electronics research [8], [9].…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Non-Ideal Steady-State Analysis of a Threefold Operation Mode Interleaved-Based DC–DC Converter

et al. 2020

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Formerly in the literature, a new interleaved-based boost converter was devised for multiple input voltage sources purposes. Nevertheless, when only a single input voltage source is connected to the 2-phase version of this converter, it can be seen as a compact interleaved boost with voltage multiplier (cIBVM). A brief description of cIBVM operation as well as the ideal modeling are already discussed in the literature for one specific range of duty-cycle. In this paper, we provide further analysis by considering the conduction and dynamic losses on the analytical model with a single voltage source. Moreover, we also obtained the analytical model considering the entire duty-cycle range showing that the converter can perform either a quadratic, a double or even a symmetric voltage gain depending solely on the switching strategy adopted. The analytical model was obtained using state-space representation and both its accuracy and the effectiveness of the results were validated from a Simulink-based cross validation and a complete sequence of experimental tests. INDEX TERMS DC-DC converters, high step-up conversion ratio, multiple operation modes.

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“…Forward converter is a buck-derived isolated DC-DC converter used for low-and mediumpower applications (Tan, 2002;Park et al, 1997;Zhang et al, 2020). Because of the simplicity, high-power density and reliability, it is generally used in telecommunications (Park et al, 1997) and space applications (Lee et al, 2020). Active clamp reset technique (Dalal, 1996;Park et al, 1997;Tan, 2002;Lin et al, 2006) has been developed to overcome the limitation on 50 per cent duty cycle, input voltage range imposed by the conventional forward converter and also improve the voltage stress and switching losses.…”

Section: Introductionmentioning

confidence: 99%

“…The advantages of active clamp forward converter (ACFC), led to the design of improved ACFC topology which can be operated for high power and also wide input voltage range (Youn et al, 2016). Some of the recent topological advancements on the ACFC include the decrease of the converter size to attain high-power density (Zhang et al, 2020;Lee et al, 2020), lowering the voltage stress on the secondary switches (Lin et al, 2018) and zero current zero voltage transition (Yang et al, 2006) operation of switches to improve the efficiency. The topological advancement comes with increase in design complexity of the converter.…”

Section: Introductionmentioning

confidence: 99%

Modeling of high-side active clamp forward converter with resistive parasitics

Krishnaja

Samanta

2020

COMPEL

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Purpose The purpose of this paper is to derive the small-signal/canonical model derivation of the high-side active clamp forward converter (ACFC) with diode rectification for ideal and with resistive parasitics. It also covers the analysis of ACFC small-signal model with resistive parasitics using computer-aided modeling software Personal Computer Simulation Program with Integrated Circuit Emphasis (PSPICE) 16.6. The effects of variation of system parameters on the ACFC’s state transfer functions and operations have been highlighted in this paper. Design/methodology/approach The large-signal model and small-signal model of the ACFC with diode rectification has been derived using AC small-signal modeling approach. Findings The operating point of the converter changes with the consideration of resistive parasitics compared with the ideal case. The response obtained from the hardware matches with the time domain response of the averaged model and switch model developed in PSPICE. Research limitations/implications This paper limits the study of ACFC small-signal behavior by using computer-aided design software PSPICE. The dead time of the converter is not considered because it is negligible when compared with the on and off time. The leakage inductance which plays a role in zero voltage switching of the ACFC switches is neglected in the analysis as it is very small compared to the magnetizing inductance. The switching losses are not considered in the modeling. Practical implications The mathematical computation of deriving the system transfer functions from canonical model is complex and time consuming. Originality/value The modeling with resistive parasitics improves the effectiveness of the equivalent model. Also, the analysis with computer-aided modeling software PSPICE gives reliable results in less time.

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A High-Power-Density Converter With a Continuous Input Current Waveform for Satellite Power Applications

Cited by 13 publications

References 22 publications

A Comprehensive Review on Small Satellite Microgrids

A Comprehensive Review on Small Satellite Microgrids

A Comprehensive Non-Ideal Steady-State Analysis of a Threefold Operation Mode Interleaved-Based DC–DC Converter

Modeling of high-side active clamp forward converter with resistive parasitics

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