Ensuring minimum duration of transient processes in switched voltage regulators with digital control

Тип публикации: статья из журнала

Год издания: 2019

Идентификатор DOI: 10.4108/eai.16-10-2019.160838

Ключевые слова: Adjustable components of state variables, Control law, Digital control loop, Field-programmable gate array, FPGA, SVR, Switching voltage regulator, Transient time

Аннотация: This paper describes a solution suggested to minimize the finite transient duration of a switched voltage regulator (SVR) for step changes in load current. SVR control laws aimed at minimizing the transient time are synthesized, and the microprocessor-based architecture and operating algorithms of the control system are designed. The prototype of the SVR digital control unit is implemented on the field-programmable gate array integrated circuit Cyclone III EP3C120F780 using the NIOS II soft-processor core. Embedded software is developed to calculate the control pulse duration for power switches in accordance with the synthesized control laws taking into account the feedback loop signal. A case study of the prototype shows that it provides the duration of transients caused by a load current step change, equal to 3-4 conversion periods at the frequency of 120 kHz. It confirms the suitability of the developed models, algorithms and control laws for ensuring the minimum transient duration. © 2019 Oleg V. Nepomnyashchiy et al.

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Издание

Журнал: EAI Endorsed Transactions on Energy Web

Выпуск журнала: Vol. 6, Is. 24

Номера страниц: 6

ISSN журнала: 16155548

Издатель: European Alliance for Innovation

Авторы

  • Nepomnyashchiy O.V. (School of Space and Information Technologies, Siberian Federal University, Svobodny pr. 79, Krasnoyarsk, 660041, Russian Federation)
  • Krasnobaev Y.V. (School of Space and Information Technologies, Siberian Federal University, Svobodny pr. 79, Krasnoyarsk, 660041, Russian Federation)
  • Yablonsky A.P. (School of Space and Information Technologies, Siberian Federal University, Svobodny pr. 79, Krasnoyarsk, 660041, Russian Federation)
  • Potekhin V.V. (Higher School Cyber-Physical and Control Systems, Peter the Great St. Petersburg Polytechnic University, Grazhdansky Pr. 28, St. Petersburg, 195220, Russian Federation)
  • Sirotinina N.J. (School of Space and Information Technologies, Siberian Federal University, Svobodny pr. 79, Krasnoyarsk, 660041, Russian Federation)

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