Abstract
Renewable energy sources (RESs), such as wind and solar generations, equip inverters to connect to the microgrids. These inverters do not have any rotating mass, thus lowering the overall system inertia. This low system inertia issue could affect the microgrid stability and resiliency in the situation of uncertainties. Today’s microgrids will become unstable if the capacity of RESs become larger and larger, leading to the weakening of microgrid stability and resilience. This paper addresses a new concept of a microgrid control incorporating a virtual inertia system based on the model predictive control (MPC) to emulate virtual inertia into the microgrid control loop, thus stabilizing microgrid frequency during high penetration of RESs. The additional controller of virtual inertia is applied to the microgrid, employing MPC with virtual inertia response. System modeling and simulations are carried out using MATLAB/Simulink® software. The simulation results confirm the superior robustness and frequency stabilization effect of the proposed MPC-based virtual inertia control in comparison to the fuzzy logic system and conventional virtual inertia control in a system with high integration of RESs. The proposed MPC-based virtual inertia control is able to improve the robustness and frequency stabilization of the microgrid effectively.
Highlights
Widespread growth in utilizing renewable energy sources (RESs), such as wind, solar, biomass, and geothermal for electricity generation has become unavoidable
It is obvious that the virtual inertia system improves the frequency response and reduces transient excursions compared with the microgrid system without the virtual inertia control
model predictive control (MPC) is applied for the virtual inertia control for microgrid frequency stabilization during high integration of RES and fluctuating load disturbances
Summary
Widespread growth in utilizing renewable energy sources (RESs), such as wind, solar, biomass, and geothermal for electricity generation has become unavoidable. The power electronic interface-based RESs will reduce the overall system inertia and cause lack of frequency/voltage stabilization to a microgrid compared with traditional synchronous generators [4]. To overcome the difficulties in high penetration of RESs/load and mismatch parameters of the microgrid generations, this paper proposes virtual inertia control based on MPC to achieve a more stable and robust microgrid frequency stability and performance, avoiding instability and system collapse. This paper presents a novel adaptive control method based on virtual inertia system with MPC for microgrid frequency stabilization by emulating virtual inertia into the microgrid during high penetration of RES and load uncertainties. The simulation results confirm the superior robus3tnoef s2s1 and frequency stabilization effect of the proposed MPC-based virtual inertia control in comparison to tchoemfpuazrziysolnogtoictshyesftuemzzyanlodgciconsyvsetnemtioannadl vciorntuvaelnitnioenrtailavciortnutarol li.nTerhteiamcoanintrcool.nTtrhiebumtiaoinn coofnthtriisbwutoiornk iosf tthhaist uwsoinrkg itshethpartoupsoinsegdthmeepthroopdo, sthede mmiectrhoogdr,idthseymsteicmrocgarnidbseyssmtemootchalny bsetasbmiliozoetdh,lymsatianbtialiinzeedd,, amnadinptareinveedn,teadndfrpomreviennstteadbilfirtoymanindstcaobllialiptyseanddurcionlglahpisgehdiunrtienggrahtiigohnsinotfeRgrEaSti/olnosadofaRnEdSm/loisamd aatnchd pmairsammaettcehrspoaframmicertoegrsriodfgmenicerroagtiroindsg.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
