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A Measuring System for Assessing the Quality of Power Conversion Equipment for Testing Power-Supply Systems of Spacecraft

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Abstract—

Methods for measuring the impedance of power conversion equipment are analyzed in order to show their general principle of implementation. A measuring system is proposed based on this principle as applied to power conversion equipment for testing power-supply systems of spacecrafts. The system allows measurement of the impedance modulus at frequencies ranging from 10 Hz to 10 MHz at a load voltage as high as 105 V. At the same time, the maximum load current (amplitude) in the frequency range of up to 70 kHz is 12.5 A or higher with an acceptable decrease in the maximum value to 10 A according to the linear law in the frequency range of 70−100 kHz. In the frequency range from 100 kHz to 10 MHz, the maximum current decreases with increasing frequency, but no more than by 20 dB/decade. A frequency-controlled load device has been developed for removing transient processes in power-conversion equipment used for testing power-supply systems of spacecraft. Using this device, it is possible to perform specific operating modes, such as variations of mutual transitions between the nominal mode and the short-circuit and idle modes.

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Funding

This study was supported by the Russian Foundation for Basic Research, project no. 20-38-90177.

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Correspondence to O. G. Rekutov.

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The authors declare that they have no conflicts of interest.

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Translated by N. Goryacheva

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Rekutov, O.G., Puchkov, A.N., Pchel’nikov, V.A. et al. A Measuring System for Assessing the Quality of Power Conversion Equipment for Testing Power-Supply Systems of Spacecraft. Instrum Exp Tech 65, 246–250 (2022). https://doi.org/10.1134/S0020441222020063

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  • DOI: https://doi.org/10.1134/S0020441222020063

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