UDK 681.2 Doi: 10.31772/2587-6066-2020-21-3-409-416
DETERMINATION OF THE DIGITAL CONTROLLER’S CHARACTERISTICS OF THE SWITCHED-MODE POWER CONVERTERS
A. A. Lopatin, A. A. Druzhinin, A. S. Asochakov, A. V. Puchkov
JSC Academician M. F. Reshetnev Information Satellite Systems; 52, Lenin St., Zheleznogorsk, Krasnoyarsk region, 662972, Russian Federation
The development of spacecrafts equipment is on the way to digitalization. In particular, energy spacecraft conversion devices are being modernized by introducing digital automatic control systems instead of analog ones. This leads to an increase in the efficiency of the power supply system, but at the same time, there is a need to create methods to determine characteristics that will confirm with a high degree of accuracy and conformity of the manufactured sample with the technical requirements specified during its design. The article describes the features of functioning and methodology for determining digital control channel of a pulse voltage converter’s characteristics. The proposed approach is a toolkit for verifying the correct implementation of both the hardware parts of the control channel and the controller, which is a program code implemented on digital control devices. The technique is based on determining the degree of responses correspondence to typical external influences of a hardware-implemented control channel and its model. Based on the transfer functions of the IIR and FIR digital filters, using standard built-in models, the control channel of the pulse voltage converter corresponding to the tested hardware-implemented device is simulated in the package Matlab Simulink. The basic principles of building the software architecture experiment are described. A block diagram of the test complex has been developed, including sources of external influence, control channel, and a test management tool (in this case, a personal computer). An example of applying such a technique to verify the parameters of the developed PID controller is given. Operability and accuracy of the proposed method to determine characteristics of the control channel by reaction to a sequence of rectangular pulses, and by constructing the AFCL are experimentally shown. Application of this verification method to production conditions will allow a complete check of individual central control units (CCU) of energy-converting equipment with closed feedbacks even at the stage of devices development, which will eliminate errors in the implementation of regulators in control loops.
Keywords: testing, pulse voltage converter, digital controller, reference model, response, typical input.
References

1. GOST R 53711–2009. Izdeliya elektronnoj tekhniki.
Pravila priemki [State Standard R 53711-2009. Electronic
products. Acceptance rules]. Moscow, 2009.
2. Olsson G., Piani D. Cifrovye sistemy avtomatizacii i
upravleniya [Digital automation and control systems].
SPb., Nevskiy Dialekt Publ., 2001, 557 p.
3. Solodovnikov V. V. Tekhnicheskaya kibernetika.
Teoriya avtomaticheskogo regulirovaniya. Kniga 1 Matematicheskoe
opisanie, analiz ustojchivosti i kachestva
sistem avtomaticheskogo regulirovaniya [Technical cybernetics.
Theory of automatic regulation. Book 1
Mathematical description, analysis of stability and quality
of automatic control systems.]. Moscow, Mashinostroenie
Publ., 1967, 769 p.
4. Corradini L., Macsimovich D. Digital Control of
high frequency Switched-Mode Power Converters. Hoboken,
New Jersey, 2015. 356 p.
5. Meleshin V. I. Tranzistornaya preobrazovatel'naya
tekhnika [Transistor Converter Technology]. Moscow,
Tekhnosfera Publ., 2005, 632 c.
6. Ayficher E., Dzhervis B. Cifrovaya obrabotka signalov:
prakticheskiy podhod [Digital Signal Processing:
A Practical Approach]. Moscow, Vil'yams Publ., 2004,
992 p.
7. Belov G. A. Dinamika impul'snyh preobrazovateley
[Dynamics of pulse power converters]. Cheboksary, 2001,
528 p.
8. Solonina A. I., Klionskij D. M., Merkucheva T. V.,
Perov S. N. Cifrovaya obrabotka signalov i Matlab [Digital
Signal Processing and Matlab]. SPb., BHV-Peterburg,
512 p.
9. John Rice. Accelerating Power-Supply Compliance
to Specification. Available at: http://www.ti.com/lit/
ml/slup308/slup308.pdf (accessed 01.05.2020)
10. Denisenko V. V. Komp'yuternoe upravlenie
tekhnologicheskim processom, eksperimentom, oborudovaniem
[Computer control of a technological process,
experiment, equipment.]. Moscow, Goryachaya liniya –
Telekom Publ., 2009, 608 p.
11. Belyaev A., Solohina T., Yudincev V. [Modern
digital signal processing devices. Together or apart?].
Elektronika: Nauka, Tekhnologiya, Biznes. 2009, No.
1(91), P. 28–35 (In Russ.).
12. Shtraus V. Rynki DSP vysokogo klassa, raschitannye
na bolee vysokiy dohod [High-end DSP Markets
for Higher Income]. 2006.
13. Markulov I. Elektronnye komponenty. 2011, No. 4,
P. 3 (In Russ.).
14. Rukovodstvo po ustrojstvu Cyclone IV [Cyclone
IV device manual]. Kompaniya Altera, 2016, 490 p.
15. IEEE 754-2008 Standart dvoichnoy arifmetiki s
plavayushchey tochkoy [IEEE 754-2008 standard for binary
floating-point arithmetic-Institute of Electrical and
Electronics Engineers]. 2008, 23 p.


Lopatin Aleksandr Aleksandrovich – Cand. Sc., head of design section power supply and conversion equipment;
JSC Academician M. F. Reshetnev Information Satellite Systems. E-mail: lopatin@iss-reshetnev.ru.
Druzhinin Aleksandr Aleksandrovich – design engineer; JSC Academician M. F. Reshetnev Information Satellite
Systems. E-mail: Alex-Druzh@mail.ru.
Asochakov Arseniy Stepanovich – design engineer; JSC Academician M. F. Reshetnev Information Satellite
Systems. E-mail: arseniy.asochakov@yandex.ru.
Puchkov Aleksandr Vital'yevich – design engineer; JSC Academician M. F. Reshetnev Information Satellite
Systems. E-mail: puchok_95@mail.ru.


  DETERMINATION OF THE DIGITAL CONTROLLER’S CHARACTERISTICS OF THE SWITCHED-MODE POWER CONVERTERS