Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

The Stable Operation Analysis of the DC Converter System into a Microgrid System, Taking into Account the Parameters of the Energy Source and the Own Parameters of the DC Converter

Version 1 : Received: 9 December 2022 / Approved: 9 December 2022 / Online: 9 December 2022 (07:19:54 CET)

How to cite: Kotin, D.; Ivanov, I. The Stable Operation Analysis of the DC Converter System into a Microgrid System, Taking into Account the Parameters of the Energy Source and the Own Parameters of the DC Converter. Preprints 2022, 2022120173. https://doi.org/10.20944/preprints202212.0173.v1 Kotin, D.; Ivanov, I. The Stable Operation Analysis of the DC Converter System into a Microgrid System, Taking into Account the Parameters of the Energy Source and the Own Parameters of the DC Converter. Preprints 2022, 2022120173. https://doi.org/10.20944/preprints202212.0173.v1

Abstract

In this paper, the authors consider the influence of the type of power supply and the internal parameters of the DC-DC converter on the stability of the system at constant power load. The stability of the system under consideration is important in the design and development of the power supply system for an autonomous consumer. Such a typical system can be a DC microgrid. In the work, when analyzing the stability of the system, the power source is not considered an ideal voltage source, but the active-inductive nature of the voltage source is taken into account, which is equivalent to using a synchronous machine with permanent magnets. The Rauss-Hurwitz algebraic criterion was used as a criterion for analyzing the stability of the system. This will make it possible to build and analyze the areas and boundaries of the system's stability. As a result, the areas and boundaries of the stability of the system were presented. The general trend towards the behavior of the zone of instability of the system was given. At the same time, dependences describing the boundaries of instability are presented, which are combinations of parameters of the DC-DC converter, beyond which the system becomes unstable. The presented definitions of the instability limits can be used as a corrective device of the control system to ensure the stability of the system in the upper limits of the power consumption.

Keywords

DC Microgrid; DC-DC converter; stability analysis; stability boundary; CPL

Subject

Engineering, Electrical and Electronic Engineering

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