Virtual Impedance-based Decentralized Power Sharing Control of an Islanded AC Microgrid

Pathan, Erum; Khan, Mubashir Hayat; Arshad, H.; Aslam, M. Kaleem; Jahangir, D.; Asad, M.; Rabani, M. I.

doi:10.48084/etasr.3946

Cited by 8 publications

(5 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…DERs could include renewable units, dispatchable Distributed Generators (DGs), and Battery Energy Storage Systems (BESSs) [16][17][18]. Microgrids support the islanding operation capability [19][20][21]. Nevertheless, in some conditions, microgrids can provide ancillary services to other parts of the distribution network by supplying their excess generation back to the utility grid.…”

Section: Microgrids As An Intelligent Technique To Integratementioning

confidence: 99%

“…The restoration time for each interruption event, once the outage occurs, is formulated by (18). The reliability indices SAIDI, SAIFI, and CAIDI are computed by (19), (20), and (21), respectively. The auxiliary binary variable  is added to provide value and significance of minimizing the reliability indices in the objective.…”

Section: Wwwetasrcom Albaker: Reliability-based Optimal Integrated Mi...mentioning

confidence: 99%

See 1 more Smart Citation

Reliability-Based Optimal Integrated Microgrid Scheduling in Distribution Systems

Albaker

2023

Eng. Technol. Appl. Sci. Res.

View full text Add to dashboard Cite

This paper proposes a reliability-based optimal scheduling model of integrated microgrids. The proposed model is capable of delivering optimal scheduling of each individual microgrid and aggregated system. In addition, it is compatible with both grid-connected and islanded operation modes. The developed problem formulation of the proposed model takes into account the reliability indices SAIDI, SAIFI, and CAIDI to evaluate the reliability of the integrated system. Numerical simulations on a modified IEEE-33 bus test system, involving four integrated microgrids, were performed to investigate the advantages and the robustness of the developed model. Furthermore, the impact of merging Battery Energy Storage Systems (BESSs) on the optimization outcome is examined, which demonstrates its significant effectiveness in improving the power systems' reliability.

show abstract

Section: Microgrids As An Intelligent Technique To Integratementioning

confidence: 99%

Section: Wwwetasrcom Albaker: Reliability-based Optimal Integrated Mi...mentioning

confidence: 99%

Reliability-Based Optimal Integrated Microgrid Scheduling in Distribution Systems

Albaker

2023

Eng. Technol. Appl. Sci. Res.

View full text Add to dashboard Cite

show abstract

“…The proposed control strategy includes droop control technique along with virtual impedance. It includes PI controllers to control the voltage and current for two Voltage Source Inverter (VSI) distribution generation units which are connected in parallel combination via a Point of Common Coupling (PCC) [18]. In a microgrid, the concept of Power-Frequency Droop Control (PFDC) is introduced to bring back the grid frequency perfectly and also share the reactive power in an isolated microgrid with the application of virtual power plant (VPP).…”

Section: ░ 2 Literature Reviewmentioning

confidence: 99%

Centralized Reactive Power Controller for Grid Stability and Voltage Control

Baishya

Bhuyan

Das

2022

IJEER

View full text Add to dashboard Cite

The integration of renewable energy sources like solar and wind energy into the transmission and distribution grid has increased gradually for quenching the increasing demand for alternative sources to fossil fuels. However, due to the intermittent nature of the renewable sources primarily solar and wind, the injection of the renewable power generation into the grid shall also be fluctuating which in turn will impact the voltage profile of the transmission and distribution grid. Also, in case of any major load disconnection or generator tripping in a weak grid, the voltage profile will be severely impacted in a weak grid. The aim is to control the sudden major voltage profile disturbance of a weak grid in case of variation of power injected into the weak grid from solar and wind energy and also due to sudden load tripping or generator tripping in the weak grid by controlling the reactive power in the weak grid. In this paper, a centralized reactive power controller has been proposed to control reactive power injection or absorption in the grid. By controlling the reactive power sources and sinks centrally via the centralized controller, any contingency can be met to prevent major disturbance of the voltage profile in the weak grid. This controller shall aim to control the connected reactive power sources & sinks based on the voltage profile of the transmission grid and it shall also engage the Line Commutated Converter (LCC) High Voltage Direct Current (HVDC) Reactive Power Controller. Various cases have been analyzed in this paper for implementation of the centralized reactive power controller for voltage control in the transmission grid.

show abstract

“…The distributed generations (DGs) are current-controlled sources with frequency and phase angle regulation provided by proportional resonant regulators, and voltage control is provided by a predictive voltage controller in each DG. References [33][34][35] look into transient oscillations that occur during mode transitions and propose a modified PQ control method to alleviate them. As a result, the output of the DGs' PQ controller synchronizes with the output of the DG voltage forming unit's V/f controller to transition from islanded to grid-connected mode.…”

Section: Introductionmentioning

confidence: 99%

Fault‐tolerant modular multilevel converter for a seamless transition between stand‐alone and grid‐connected microgrid

Mahmoud

Hafez

Yousef

et al. 2022

IET Power Electronics

View full text Add to dashboard Cite

Recently, renewable distributed generation (DG) systems have emerged to improve the power system security and reliability while reducing the environmental incompatibility of fossil fuel power plants. DG could operate either as a standalone and/or as a grid‐connected power system. The interfacing circuits of DG and their controls have to comply with utility quality regulations and afford a seamless transition from online to offline and vice versa. This article advises a simple and robust control scheme for a modular multilevel converter (MMC) that interfaces with a photovoltaic (PV) generator. The proposed control method ensures high‐quality output voltage/current waveform in online and/or offline operating modes. Moreover, the proposed control provides a seamless and swift transition from standalone to grid‐connected and vice versa. The exhibited control scheme is simulated with MATLAB/Simulink. Real‐time simulator OPAL‐RT OP4510 is used to verify the displayed simulation results. The simulation results determine the accomplishment of the proposed control technique for a seamless transition from the grid‐connected mode to the standalone mode and vice versa via MMC.

show abstract

Virtual Impedance-based Decentralized Power Sharing Control of an Islanded AC Microgrid

Cited by 8 publications

References 13 publications

Reliability-Based Optimal Integrated Microgrid Scheduling in Distribution Systems

Reliability-Based Optimal Integrated Microgrid Scheduling in Distribution Systems

Centralized Reactive Power Controller for Grid Stability and Voltage Control

Fault‐tolerant modular multilevel converter for a seamless transition between stand‐alone and grid‐connected microgrid

Contact Info

Product

Resources

About