Yuri V. Krasnobaev − Dr.Sc. (Eng.), Professor,

Department of Automation Systems, Automated Control and Design,

Siberian Federal University, 

Institute of Space and Information Technology (Krasnoyarsk, Russia)

E-mail: YKrasnobaev@sfu-kras.ru

Oleg V. Nepomnyashcy − Ph.D. (Eng.), Associate Professor, Professor,

Head of Department of Computer Science,

Siberian Federal University, 

Institute of Space and Information Technology (Krasnoyarsk, Russia)

E-mail: 2955005@gmail.com

Valeriya N. Khaidukova − Student,

Department of Applied Physics and Space Technologies, 

Siberian Federal University, 

Institute of Space and Information Technology (Krasnoyarsk, Russia)

E-mail: valeriya_iks@mail.ru

Irina V. Solopko − Senior Lecturer,

Department of Computer Science, 

Department of Automation Systems, Automated Control and Design,

Siberian Federal University, 

Institute of Space and Information Technology (Krasnoyarsk, Russia)

E-mail: isolopko@sfu-kras.ru

Dmitriy A. Nedorezov − Student,

Department of Applied Physics and Space Technologies, 

Siberian Federal University, 

Institute of Space and Information Technology (Krasnoyarsk, Russia) E-mail: nedorezovd@mail.ru

Formulation of the problem. Currently, there are increased requirements for the quality of the output voltage of power supply systems (PSS) of communication satellites (CS) in static and dynamic modes of operation, as well as for the value of the permissible values of the output impedance of the PSS. Thus, the problem of reducing deviations of the output voltage of the PSS from a given stable value and the problem of providing the required values of the output impedance of the PSS are relevant.

Goal. It seems appropriate to find a topological solution to the PSS that allows you to combine the advantages of existing PSS and at the same time eliminate or minimize their disadvantages.

Results. The topology of a high-voltage power supply system for a communication satellite with a reduced number of stabilizing devices and simplified operation logic is proposed. The steady-state and transient modes of operation of the power supply system are considered and the advantages of the proposed topology are shown.

Practical significance. The power supply system with the proposed topology in comparison with the considered existing PSS has: − lower output impedance on the high-voltage output bus in all operating modes because the voltage at the output of the PSS is stabilized only by the RU;

− lower internal power consumption and increased reliability as a result of simplifying individual EPA nodes and EPA as a whole; − higher efficiency of energy-converting equipment in a number of operating modes.

Krasnobaev Y.V., Nepomnyashchiy O.V., Khaidukova V.N., Solopko I.V., Nedorezov N.D. Topological solution for a high-voltage power supply system for a communication satellite. Radiotekhnika. 2020. V. 84. № 10(19). P. 62−69. DOI: 10.18127/j00338486-202010(19)-06 (In Russian).

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