Quantifying the impact of inverter-based distributed energy resource modeling on calculated fault current flow in microgrids

Strezoski, Luka; Simic, Nikola

doi:10.1016/j.ijepes.2023.109161

Cited by 8 publications

(3 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To develop a comprehensive solution for DSOs and grid engineers in the utility control centers to detect, attenuate, and prevent the most critical cyber-attacks on DERs (Cases 1, 2, and 4), we are proposing a novel tool based on a Digital Twin technology. Digital Twin is a commonly used tool in domains such as the IT [27], automotive [28], aerospace [29], and manufacturing [30], as well as in Power System industry, such as for testing new devices [31] and setting and coordination of the protective devices [32]. However, as per our knowledge, Digital Twin technology has not been thoroughly used for cyberphysical security of DERs.…”

Section: Iiib Classification Of Different Types Of Cyber-attacks On Dersmentioning

confidence: 99%

See 1 more Smart Citation

Cyber Physical Security of Distributed Energy Resources

Luka,

Zorana,

Dejan

2023

EEE

View full text Add to dashboard Cite

Huge amounts of data are coming from the electrical grid, through smart meters, smart inverters, and Supervisory Control and Data Acquisition (SCADA) protocols. This makes emerging power systems, and especially distribution grids, heavily dependent on real-time data from the field, as well as on the IT infrastructure for observation and control of field devices. As a consequence, emerging electrical systems are becoming fully digitized, cyber-physical systems with all the accompanying advantages and challenges. Such a power system is called a “Smart Grid”. As all cyber-physical systems, Smart Grids are heavily dependent on Information and Communication Technology (ICT) infrastructure. Therefore, they are highly vulnerable to attacks that can compromise uninterrupted data flow, such as denial of service attacks and interruptions due to natural disasters, cataclysmic events, or wars, as well as due to malicious cyber-attacks. In this paper, we summarize the state-of-the-art in the cyberphysical security of distributed energy resources (DERs). We explore pain points to which monitoring and control of DERs in emerging electrical systems are exposed due to malicious cyberattacks. We continue with analyzing the accompanying consequences to the safety and reliability of emerging Smart Grids. Finally, we present our idea of Digital Twin technology as a tool for assisting distribution system operators and grid engineers, to detect, attenuate, and prevent malicious cyberattacks in DERs.

show abstract

Section: Iiib Classification Of Different Types Of Cyber-attacks On Dersmentioning

confidence: 99%

“…4. Signal processing part of DERs' models from the HIL setup's software library can provide exactly the same response with the response obtained from real controller which can be connected to the HIL [32]. Thus, this HIL environment serves as a basis for our DT.…”

Section: Iiib Classification Of Different Types Of Cyber-attacks On Dersmentioning

confidence: 99%

Cyber Physical Security of Distributed Energy Resources

Luka,

Zorana,

Dejan

2023

EEE

View full text Add to dashboard Cite

show abstract

“…As the basic supporting facilities of EV, affecting the level of EV application, scientific and reasonable planning for charging stations can not only reduce the investment and construction costs, and mitigate the impact on the distribution network caused by a large number of EV access, but also allow EV users to enjoy convenient charging services [1][2][3][4][5]. At the same time, the access of a large number of DERs of various types to the distribution grid leads to changes in the distribution structure and the operation mode of the grid, and the inherent uncertainty of wind power and photovoltaics creates a huge challenge to the Energies 2024, 17, 3004 2 of 29 safe and stable operation of the grid [6][7][8][9][10][11]. Therefore, studying the siting and capacitysetting of EV charging stations while considering the uncertainties of wind power and PV can effectively mitigate the adverse impacts on the stability and economy of grid operation due to the fluctuations arising from the access of DERs and EVs to the distribution grid.…”

Section: Introductionmentioning

confidence: 99%

Bi-Level Planning of Electric Vehicle Charging Stations Considering Spatial–Temporal Distribution Characteristics of Charging Loads in Uncertain Environments

Gan,

Ruan,

Wang

et al. 2024

Energies

View full text Add to dashboard Cite

With the increase in the number of distributed energy resources (DERs) and electric vehicles (EVs), it is particularly important to solve the problem of EV charging station siting and capacity determination under the distribution network considering a large proportion of DERs. This paper proposes a bi-level planning model for EV charging stations that takes into account the characteristics of the spatial–temporal distribution of charging loads under an uncertain environment. First, the Origin–Destination (OD) matrix analysis method and the real-time Dijkstra dynamic path search algorithm are introduced and combined with the Larin Hypercube Sampling (LHS) method to establish the EV charging load prediction model considering the spatial and temporal distribution characteristics. Second, the upper objective function with the objective of minimizing the cost of EV charging station planning and user charging behavior is constructed, while the lower objective function with the objective of minimizing the cost of distribution network operation and carbon emission cost considering the uncertainty of wind power and photovoltaics is constructed. The constraints of the lower-layer objective function are transformed into the upper-layer objective function through Karush–Kuhn–Tucker (KKT) conditions, the optimal location and capacity of charging stations are finally determined, and the model of EV charging station siting and capacity determination is established. Finally, the validity of the model was verified by planning the coupled IEEE 33-node distribution network with the traffic road map of a city in southeastern South Dakota, USA.

show abstract

Integral Sliding Mode‐Composite Nonlinear Feedback Control Strategy for Microgrid Inverter Systems

Zhang,

Xiu,

2024

IEEJ Transactions Elec Engng

View full text Add to dashboard Cite

To enhance the dynamic performance and robustness of the voltage control system of islanded microgrid inverters, a new control strategy combining integral sliding mode (ISM) control and composite nonlinear feedback (CNF) control is proposed. In ISM control, firstly, a new reaching law is designed to improve movement quality in the reaching phase by improving the power term and introducing the inverse tangent function. Then, to improve disturbance observation accuracy, a variable gain extended state observer is designed by improving the regulation mechanism of the state variables according to deviation control. Using the idea of variable damping, linear and nonlinear feedback are combined into CNF control. Specifically, linear feedback provides a small damping ratio for faster system response, while nonlinear feedback increases the damping ratio to improve steady‐state performance. Simulation results show that the integral sliding mode‐composite nonlinear feedback (ISM‐CNF) control strategy cam balances convergence speed and chattering better and achieves higher steady‐state accuracy than conventional strategies. Moreover, ISM‐CNF control has better robustness to reference voltage variations and disturbances caused by sudden load changes. Therefore, the ISM‐CNF control strategy can accomplish voltage control of islanded microgrid inverters quickly and steadily, effectively suppressing system disturbances and enhancing stability and power quality. © 2024 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.

show abstract

Quantifying the impact of inverter-based distributed energy resource modeling on calculated fault current flow in microgrids

Cited by 8 publications

References 26 publications

Cyber Physical Security of Distributed Energy Resources

Cyber Physical Security of Distributed Energy Resources

Bi-Level Planning of Electric Vehicle Charging Stations Considering Spatial–Temporal Distribution Characteristics of Charging Loads in Uncertain Environments

Integral Sliding Mode‐Composite Nonlinear Feedback Control Strategy for Microgrid Inverter Systems

Contact Info

Product

Resources

About