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

Nepomnyashchiy, Oleg and Krasnobaev, Yuri and Yablonsky, Aleksey and Potekhin, Vyacheslav and Sirotinina, Natalia (2019) Ensuring minimum duration of transient processes in switched voltage regulators with digital control. EAI Endorsed Transactions on Energy Web, 6 (24): e6. ISSN 2032-944X

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Abstract

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.

Item Type: Article
Uncontrolled Keywords: switching voltage regulator, SVR, control law, transient time, adjustable components of state variables, digital control loop, field-programmable gate array, FPGA
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
QA75 Electronic computers. Computer science
Depositing User: EAI Editor II.
Date Deposited: 17 Sep 2020 12:38
Last Modified: 17 Sep 2020 12:38
URI: https://eprints.eudl.eu/id/eprint/465

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