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. TПоказать полностьюhe 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.
Журнал: EAI Endorsed Transactions on Energy Web
Выпуск журнала: Vol. 6, Is. 24
Номера страниц: 6
ISSN журнала: 16155548
Издатель: European Alliance for Innovation