Система керування імітатором магнітного поля для наносупутників

Олексій Миколайович Падун; Дмитро Віталійович Сергєєв; Ірина Русланівна Лисюк; Євген Юрійович Коваленко; Борис Михайлович Рассамакін

doi:10.20535/2523-4455.mea.242812

Vol. 27 · Issue 1 · 2022 Apr 29, 2022 Electronic Systems and Signals

Magnetic Field Simulator Control System for Nanosatellites

ОП

Олексій Миколайович Падун Corresponding Національний технічний університет України «Київський політехнічний інститут імені Ігоря Сікорського»,National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” Ukraine

ДС

Дмитро Віталійович Сергєєв Національний технічний університет України «Київський політехнічний інститут імені Ігоря Сікорського»,National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” Ukraine

ІЛ

Ірина Русланівна Лисюк Національний технічний університет України «Київський політехнічний інститут імені Ігоря Сікорського»,National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” Ukraine

ЄК

Євген Юрійович Коваленко Національний технічний університет України «Київський політехнічний інститут імені Ігоря Сікорського»,National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” Ukraine

БР

Борис Михайлович Рассамакін Національний технічний університет України «Київський політехнічний інститут імені Ігоря Сікорського»,National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” Ukraine

Pages242812-1-242812-9 PublishedApr 29, 2022

PDF (Ukrainian)

VOL 27 · ISS 1 · 2022 View issue

Abstract

Nano- and microsatellites are becoming more and more popular in the last ten years. The main reason for this is the low cost of their development and launch. Two such satellites of the CubeSat format have already been developed at the Igor Sikorsky Kyiv Polytechnic Institute. They have successfully completed their missions in orbit. Work on a new satellite is underway. Before flying into orbit, all satellites must pass a large number of ground tests. An important part of almost every satellite is its subsystem of orientation and stabilization. Since it contains magnetic sensors and electromagnets, special magnetic field simulators are used to test it. Such a simulator must create a uniform magnetic field with the required parameters. The most common design used to simulate a magnetic field is a Helmholtz cage. It was built in the nanosatellite laboratory of the Igor Sikorsky Kyiv Polytechnic Institute. This paper deals with the development of a control system for it. In the beginning, the design, parameters, and operation principle of the Helmholtz cage were described. It consists of six electromagnetic square shape coils with a side of 1.5 meters. Each coil has 52 turns of 1.29 mm wire. Such dimensions make it possible to obtain a spherical zone of uniformity of the magnetic field with a radius of 293 mm. The control system should regulate the current in the coils, change its direction and also control the parameters of the generated magnetic field. The existing solutions for such a system were analyzed. As a result, it was decided to use an H bridge circuit and pulse width regulation. The structural and schematic diagrams of the control system were developed. Were selected all necessary components, such as power module, central processing unit, microcontroller for PWM signal generation, and magnetometer for magnetic field control. To reduce the ripple of the output current, an RLC filter for the coil driver was developed. Its frequency response, current and voltage curves of its load were calculated analytically and coincided with practical results. An experimental layout of the control system was assembled. As a result of the tests, it was found that the system regulates the current in the coil from 0 to 6.8 A and can change its direction. The current ripple in the coils does not exceed 1 mA (peak-to-peak) at an average current of 0,574 A. The duration of the transient in the system is about 23 ms. These values meet the requirements and allow simulating any mode of satellite flight in orbit. The developed control system for the magnetic simulator allows testing the magnetic orientation systems of nanosatellites developed at Igor Sikorsky Kyiv Polytechnic Institute and will help in their preparation for the flight.

Keywords

#nanosatellites #CubeSat #orientation and stabilization subsystem #control system #magnetic field simulator #Helmholtz cage

References

T. Villela, C. A. Costa, A. M. Brandão, F. T. Bueno and R. Leonardi, "Towards the Thousandth CubeSat: A Statistical Overview," International Journal of Aerospace Engineering, vol. 2019, no. 5063145, p. 13, 2019.
B. B. Rassamakon, M. F. Baiskov, I. Y. Kovalenko and e. al., Stvorennya, vyprobuvannya ta doslidzhennya na navkolozemnykh orbitakh pershykh vitchyznyanykh nanosuputnykiv "PoliITAN" formatu CubeSat [Creation, testing and research in near-Earth orbits of the first domestic Nano-satellites "PolyITAN" format CubeSat], Kyiv: Igor Sikorsky KPI, 2020, p. 254.
L. I. Balandina and M. Y. Dokukin, Issledovaniye magnitnogo polya katushek Gel'mgol'tsa [Study of the magnetic field of Helmholtz coils], Moskow: N.E. Bauman MSTU, 2014, p. 21.
M. M. Doroginitskiy, Raschet katushki Gel'mgol'tsa [Calculation of the Helmholtz coil], Kazan: Kazan Federal University, 2007, p. 22.
F. Piergentili, G. P. Candini and M. Zannoni, "Design, Manufacturing, and Test of a Real-Time, Three-Axis Magnetic Field Simulator," IEEE Transactions on Aerospace and Electronic Systems, vol. 47, no. 2, pp. 1369 - 1379, April 2011. DOI: 10.1109/TAES.2011.5751264
M. Pastena and M. Grassi, "Optimum design of a three-axis magnetic field simulator," IEEE Transactions on Aerospace and Electronic Systems, vol. 38, no. 2, pp. 488 - 501, April 2002. DOI: 10.1109/TAES.2002.1008981
M. A. Post, J. Li and R. Lee, "Design and construction of a magnetic field simulator for cubesat attitude control testing," Journal of Instrumentation, Automation and Systems, vol. 1, no. 1, pp. 1 - 9, 2014. URL: https://strathprints.strath.ac.uk/48665/
O. M. Padun, I. Y. Kovalenko, B. M. Rassamakin, S. V. Ostapchuk and A. I. Pinchuk, "Rozrobka stendu dlya nazemnykh vyprobuvanʹ systemy oriyentatsiyi ta stabilizatsiyi nanosuputnykiv seriyi POLYITAN [Development of a stand for ground tests of the orientation system]," Journal of Rocket-Space Technology, vol. 27, no. 4, pp. 125 - 130, 2019. DOI: 10.15421/451918
Tektronix, "Capacitance and Inductance Measurements Using an Oscilloscope and a Function Generator Application Note," 2015. [Online]. Available: https://download.tek.com/document/75W_28152_1.pdf . [Accessed 2021]
Infineon, "Datasheet for BTS 7960," 2004. [Online]. Available: https://www.infineon.com/dgdl/bts7960b-pb-final.pdf?folderId=db3a3043156fd5730116144c5d101c30&fileId=db3a30431ed1d7b2011efe782ebd6b60 . [Accessed 2021].
Y. P. Honcharov, O. V. Budʹonnyy, V. H. Morozov and e. al., Peretvoryuvalʹna tekhnika. Chastyna 2: Pidruchnyk [Conversion technology. Part 2: Textbook.], vol. 2, Kyiv: ISDO, 1999, p. 329.
STMicroelectronics, "Datasheet for STM32F103ZET6," 2018. [Online]. Available: https://www.st.com/resource/en/datasheet/stm32f103ve.pdf . [Accessed 2021].
Honeywell International Inc., "3-Axis Digital Compass IC," 2011. [Online]. Available: http://www.farnell.com/datasheets/1509871.pdf?_ga=2.219060057.1318745487.1555987311-293789508.1555987311 . [Accessed 2021].
D. V. Serhyeyev, Imitator mahnitnoho polya dlya nanosuputnykiv : dyplomnyy proekt [Magnetic field simulator for nanosatellites: Bachelor thesises], Kyiv: Igor Sikorsky KPI, 2021, p. 99.
I. R. Lysyuk, Systema keruvannya imitatorom mahnitnoho polya dlya nanosuputnykiv : mahistersʹka dysertatsiya хMagnetic field simulator control system for nanosatellites: master's thesisї, Kyiv: Igor Sicorsky KPI, 2021, p. 94.