Sequential Switching Shunt Regulation Using DC Transformers for Solar Array Power Processing in High Voltage Satellites

Orts, Carlos; Garrigós, Ausiàs; Marroquí, David; Franke, Andreas

doi:10.1109/taes.2023.3325314

IEEE Trans. Aerosp. Electron. Syst.

2024

DOI: 10.1109/taes.2023.3325314

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Sequential Switching Shunt Regulation Using DC Transformers for Solar Array Power Processing in High Voltage Satellites

Carlos Orts,

Ausiàs Garrigós,

David Marroquí

et al.

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2024

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Cited by 2 publications

References 18 publications

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Enabling High-Power Conditioning and High-Voltage Bus Integration Using Series-Connected DC Transformers in Spacecrafts

Orts,

Garrigós,

Marroquí

et al. 2024

Aerospace

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This article proposes a photovoltaic power processor for high-voltage and high-power distribution bus, between 300 V and 900 V, to be used in future space platforms like large space stations or lunar bases. Solar arrays with voltages higher than 100 V are not available for space application, being necessary to apply power conversion techniques. The idea behind this is to use series-connected zero-voltage and zero-current unregulated and isolated DC converters to achieve high bus voltage from the existing solar arrays. Bus regulation is then achieved through low-frequency hysteretic control. Topology description, semiconductor selection, design procedure, simulation and experimental validation, including tests in vacuum and partial pressures, are presented.

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Enabling High-Power Conditioning and High-Voltage Bus Integration Using Series-Connected DC Transformers in Spacecrafts

Orts,

Garrigós,

Marroquí

et al. 2024

Aerospace

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Evaluation of the Effectiveness of Solar Array Simulators in Reproducing the Characteristics of Photovoltaic Modules

Cavalcante Junior,

Neto,

Barbosa

et al. 2024

Sustainability

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The search for energy alternatives in the face of growing global demand highlights solar energy as a promising and sustainable option that is fundamental in reducing carbon emissions and mitigating climate change. In this context, inverters play a key role in connecting and distributing solar energy, requiring certification through specific tests. Given environmental unpredictability and economic challenges, the use of Solar Array Simulators (SASs) is recommended to accurately replicate the behavior of photovoltaic modules under various conditions. This study analyzes the static and dynamic performances of SASs with the aim of ensuring a faithful reproduction of module behavior in real situations under both steady-state and transient conditions. The primary focus is to ensure that experimental results are reliable and representative, promoting the implementation of more efficient energy solutions. Additionally, this study discusses the importance of optimizing inverter controllers to reflect the more realistic dynamics provided by SASs.

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Sequential Switching Shunt Regulation Using DC Transformers for Solar Array Power Processing in High Voltage Satellites

Cited by 2 publications

References 18 publications

Enabling High-Power Conditioning and High-Voltage Bus Integration Using Series-Connected DC Transformers in Spacecrafts

Enabling High-Power Conditioning and High-Voltage Bus Integration Using Series-Connected DC Transformers in Spacecrafts

Evaluation of the Effectiveness of Solar Array Simulators in Reproducing the Characteristics of Photovoltaic Modules

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