UDK UDC 621.316.71 Doi: 10.31772/2587-6066-2019-20-1-74-86
THE METHOD OF SYNTHESIS OF THE DIGITAL CONTROLLER FOR A SOLAR ENERGY CONVERSION CHANNEL OF THE SOLAR BATTERY IN THE POWER SUPPLY SYSTEM OF A SPACECRAFT. P. 74–86.
Shkolnyi V. N., Semenov V. D., Kabirov V. A., Sukhorukov M. P., Torgaeva D. S.
JSC “Academician M. F. Reshetnev “Information Satellite Systems”, 52, Lenin St., Zheleznogorsk, Krasnoyarsk region, 662972, Russian Federation; Tomsk State University of Control Systems and Radioelectronics, Research Institute of Space Technologies, 40, Lenina Av., Tomsk, 634050 Russian Federation. *E-mail: max_sukhorukov@mail.ru.
A method of synthesizing a digital controller for a solar energy conversion channel in a power supply system of a spacecraft is presented. The method is based on the initial functional diagram of the pulse converter and the method of switching discontinuous functions. In accordance with the technique, which is formally presented in the form of eight consecutively executed items, a block diagram of the shunt converter has been developed in the basis of switching functions, which is taken as an example for testing the technique. The shunt converter is one of the three energy conversion channels in modern power supply systems of a spacecraft. The block diagram showed that all nonlinearity of the system can be reduced to nonlinearities of two multiplication links and nonlinearity of a pulse-width modulator. The possibility and acceptability of joint linearization of each of the specified nonlinear multipliers with a pulse-width modulator at the selected operating point is shown. A linearized block diagram of the control object was obtained, after which the transformation and simplification of the block diagram to a convenient form for calculation was carried out. Using the transfer functions of the linearized block diagram, the logarithmic frequency characteristics were calculated analytically and the results of their comparison with the frequency characteristics obtained experimentally on a simulation model, which confirmed their identity in the working frequency domain, were presented. At the same time, the specified simulation model of a shunt pulse converter, built in the Simulink package of the Matlab design environment, took into account all the mentioned nonlinearities of the real converter. According to the obtained logarithmic characteristics, a classical synthesis of the analogue prototype correcting section was produced. The transition from the analog correcting section of the prototype to the implementation of the digital correcting section is shown. Simulation modeling of a closed-loop power supply system with a synthesized analog controller, in its mode of operation from a solar battery, confirmed the correctness of the methodology and the achievement of the goals. The results of the work are intended to create a new onboard energy conversion equipment for power supply systems of high-potential spacecrafts. The scope of application of the project results is space instrumentation.
Keywords: synthesis of digital controller, technical optimum, simulation modeling, shunt converter, power supply system, spacecraft.
References

1. Shinyakov Yu. A. [Energy analysis of structural diagrams of power systems for automatic space vehicles]. Izvestiya Tomskogo politekhnicheskogo universiteta. 2006, Vol. 309, No. 8, P. 152–155 (In Russ).

2. Soustin B. P., Ivanchura V. I., Chernyshev A. I., Islyaev Sh. N. Sistemy elektropitaniya kosmicheskikh apparatov [Spacecraft power supply systems]. Novosibirsk, VO Nauka, Sibirskaya izdatel'skaya firma Publ., 1994, 318 p.

3. Greenwood C., Lenhart S., Inenaga B., Jennings C., Mendelsohn A., Staley M., Vaughan R. Super power subsystem development and application on the 1300 family of spacecraft. 20th AIAA International Communication Satellite Systems Conference and Exhibit. May 12–15 2002.

4. Abbas A. In-Orbit Performance of Lockheed Martin's Electrical Power Subsystem for A2100 Communication Satellite, AIAA. 2000, 28 p.

5. Garrigos A., Carrasco J. A., Blanes J. M., Sanchis-Kilders E. A power conditioning unit for high power geo satellites based on the sequential switching shunt series regulator. IEEE MELECON Electrotechnical Conference. May 16–19 2006, P. 1186–1189.

6. Ich D. Ngo Evolution of Solar Array Shunt Regulators for Boeing Satellites. 7th International Energy Conversion Engineering Conference. August 2–5 2009.

7. Soubrier L., Trehet E. High Power PCU for Alphabus: PSR100V. Proceedings of the 9th European Space Power Conference. France, 2011.

8. Nepomnyashchiy O. V., Krasnobaev Yu. V., Titovskiy S. N., Khabarov V. A. [Microelectronic control devices for power energy-transforming modules of power supply systems for prospective space vehicles]. Zhurnal Sibirskogo federal'nogo universiteta. Seriya: Tekhnika i tekhnologii. 2012, Vol. 5, No 2, P. 162–168 (In Russ.).

9. Nepomnyashchiy O. V., Veysov E. A., Krasnobaev Yu. V., Kapulin D. V. [Methods and algorithms for microprogram control of high-speed impulse voltage regulators for power supply of on-board equipment of perspective space vehicles]. Vestnik SibGAU. 2010, No. 4(25), P. 14–18 (In Russ.).

10. Kazantsev Yu. M., Gordeev K. G., Lekarev A. F., Cherdantsev S. P., Gavrilov A. M. [Current transformer of solar battery energy in the spacecraft power supply system]. Izvestiya Tomskogo politekhnicheskogo universiteta. 2011, Vol. 319, No 4, P. 148–153 (In Russ.).

11. Kobzev A. V., Semenov V. D., Fedinykh E. K. [Application of the commutation discontinuous functions method for constructing mathematical models of power converters]. Doklady TUSURa. 2011, No. 2(24), P. 58–63(In Russ.).

12. Kabirov V. A., Semenov V. D. [A small-signal converter model using the commutation discontinuous function method]. Nauchnaya sessiya TUSUR-2017: materialy Mezhdunar. Nauch.-tekhn. Konf. studentov, posvyashchennoy 55-letiyu TUSURa. Tomsk, 10–12 maya 2017 g. V 8 ch. [Scientific session of TUSUR-2017 : proceedings of international. science.-tech. Conf. students dedicated to the 55th anniversary of TUSUR. In 8 part]. Tomsk, V-Spektr Publ., 2017, Part. 2, 272 p. (In Russ.).

13. Kabirov V. A [Experimental study of the smallsignal frequency characteristics of a shunt voltage converter]. XIV Mezhdunar. Konf. studentov, aspirantov i molodykh uchenykh “Perspektiva razvitiya fundamental'nykh nauk” [XIV international. Conf. students, postgraduates and young scientists “Prospect of development of fundamental Sciences”]. Tomsk, TPU Publ., 2017, Vol. 7, P. 54–56 (In Russ.).

14. Guretskiy Kh. Analiz i sintez sistem upravleniya s zapazdyvaniem [Analysis and synthesis of control systems with delay]. Per. s pol'skogo. Moscow, Mashinostroenie Publ., 1974, 210 p.

15. Bychkov Yu. A., Zolotnitskiy V. M., Chernyshev E. P., Belyanin A. N. Osnovy teoreticheskoy elektrotekhniki [Fundamentals of theoretical electrical engineering]. Sankt-Peterburg, Lan' Publ., 2009, 340 p.


Shkolnyi Vadim Nikolaevich – Ch. designer of design and testing of REA; JSC “Information Satellite Systems” named after academician M. F. Reshetnev”. E-mail: shkolnyy@iss-reshetnev.ru. Semenov Valery Dmitrievich – Cand. Sc., Professor of Industrial Electronics Department; Tomsk State University of Control Systems and Radioelectronics, Research Institute of Space Technologies. E-mail: svd@ie.tusur.ru.

Kabirov Vagiz Alexandrovich – Head of Microprocessor Devices and Systems Laboratory of Industrial Electronics Department; Tomsk State University of Control Systems and Radioelectronics, Research Institute of Space Technologies. E-mail: fva@vipelec.com.

Sukhorukov Maxim Petrovich – Head of Digital Control Systems Laboratory; Tomsk State University of Control Systems and Radioelectronics, Research Institute of Space Technologies. E-mail: max_sukhorukov@mail.ru. Torgayeva Darya Sergeevna – Junior Researcher of Digital Control Systems Laboratory; Tomsk State University of Control Systems and Radioelectronics, Research Institute of Space Technologies. E-mail: belial1349@mail.ru.


  THE METHOD OF SYNTHESIS OF THE DIGITAL CONTROLLER FOR A SOLAR ENERGY CONVERSION CHANNEL OF THE SOLAR BATTERY IN THE POWER SUPPLY SYSTEM OF A SPACECRAFT. P. 74–86.