Modelling, Analysis and Performance of a Low Inertia AC-DC Microgrid
Afifi, Mohamed A.; Mostafa Ibrahim Mohamed Marei; Mohamad, Ahmed M.I.;
Abstract
In a world where the energy crisis is becoming overwhelming, demand for integrating renewable energy sources is increasing and forming microgrids is becoming an essential solution. The new microgrid systems, which depend mainly on renewable energy sources instead of conventional synchronous generators, come with a low inertia concern. This paper proposes a virtual inertia controller based on a high-pass filter (HPF) to support the frequency of the AC microgrid while maintaining the DC voltage of the DC microgrid within the nominal ranges in cases of contingencies. The proposed system encounters an AC-DC microgrid with a renewable energy source on the DC microgrid alongside constant power load and resistive loads, while on the AC microgrid side, a synchronous generator is used to present the low inertia of the grid with dynamic loads and static loads. The state-space linearized model of the system is developed and verified using Matlab Simulink. The dynamic response of the proposed controller is compared to the low-pas filter (LPF)-based controller. Moreover, the effect of changing the system’s parameters on eigenvalues is investigated.
Other data
Title | Modelling, Analysis and Performance of a Low Inertia AC-DC Microgrid | Authors | Afifi, Mohamed A.; Mostafa Ibrahim Mohamed Marei ; Mohamad, Ahmed M.I. | Keywords | dynamic loads;frequency support;induction motor;low inertia;microgrids;stability;virtual inertia | Issue Date | 1-Mar-2023 | Publisher | MDPI | Journal | Applied Sciences (Switzerland) | Volume | 13 | Issue | 3197 | ISSN | 2076-3417 | DOI | 10.3390/app13053197 | Scopus ID | 2-s2.0-85149629236 |
Attached Files
File | Description | Size | Format | Existing users please Login |
---|---|---|---|---|
applsci-13-03197.pdf | 3.16 MB | Adobe PDF | Request a copy |
Similar Items from Core Recommender Database
Items in Ain Shams Scholar are protected by copyright, with all rights reserved, unless otherwise indicated.