Effects of Power Electronics, Energy Storage, Power Distribution Architecture, and Lifeline Dependencies on Microgrid Resiliency During Extreme Events

Krishnamurthy, Vaidyanathan; Kwasinski, Alexis

doi:10.1109/jestpe.2016.2598648

Cited by 53 publications

(39 citation statements)

References 30 publications

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“…where v i;ABC and i f ;ABC stand for the three-phase inverter output voltages and currents, respectively; v g;ABC and i o;ABC are the three-phase voltages at the grid-connected node and the output current injected to the grid; i n and L n are the neutral current and the inductor. The transformation matrix C in (6) is applied and use (9) to simplify the voltage derivative in (26). Then, the abc-frame system function is expressed as:…”

Section: Der Control In Abnormal Conditions and Voltage Disturbancesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The effective utilization and control of advanced PE interfaces in DER-penetrated distribution systems and microgrids have been extensively investigated in [9][10][11][12]. The role of PE technologies on enhancing the microgrid resilience is discussed in [9]. Centered on PE converter technologies, a dynamic routing scheme is suggested in [10] to maximize the loadability in unbalanced distribution systems with hybrid AC and DC microgrids.…”

Section: Introductionmentioning

confidence: 99%

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Advanced control solutions for enhanced resilience of modern power-electronic-interfaced distribution systems

Wang

Dehghanian

Alhazmi

et al. 2019

J. Mod. Power Syst. Clean Energy

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Modern power delivery systems are rapidly evolving with high proliferation of power-electronic (PE)interfaced distributed energy resources (DERs). Compared to the conventional sources of generation, the PE-interfaced DERs, e.g., solar and wind resources, are attributed substantially different characteristics such as lower overload capability and limited frequency response patterns. This paper focuses on effective management and control mechanisms for PE-interfaced DERs in power distribution systems with high penetration of renewables, particularly under fault, voltage-sag, load variations, and other prevailing conditions in the grid. Aiming at the solutions to enhance the system performance resilience, we introduce an advanced model predictive control (MPC) based scheme to control the DER units, minimize the impact of transients and disruptions, speed up the response and recovery of particular metrics and parameters, and maintain an acceptable operation condition. The performance of the suggested control scheme is tested on a modified IEEE 34-bus test feeder, where the proposed solution demonstrates its effectiveness to minimize the system transient during faults, with an enhanced grid-edge and system-wide resilience characteristics in voltage profiles.

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Section: Der Control In Abnormal Conditions and Voltage Disturbancesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Advanced control solutions for enhanced resilience of modern power-electronic-interfaced distribution systems

Wang

Dehghanian

Alhazmi

et al. 2019

J. Mod. Power Syst. Clean Energy

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show abstract

“…Such social relevance has even been highlighted in the U.S. Presidential Policy Directive 21 (Tang, ), which “identifies energy and communication systems as uniquely critical.” Diesel generators have been widely used for backups for telecommunication base stations (Dueñas‐Osorio & Kwasinski, ; Foster, ; Krishnamurthy & Kwasinski, ; Kwasinski & Krein, ; Tang, ) and other critical applications. For example, portable generators are deployed to power cell sites during hurricanes and earthquakes (Adachi, Ishirama, Asakura, & Nakamura, ; Ahmad, Kalyanaraman, Amjad, & Subramanian, ; Dueñas‐Osorio & Kwasinski, ; Foster, ; Krishnamurthy & Kwasinski, , ; Kwasinski, ; Tang, ) and permanent generators are popular choices for local generation in microgrids (Abi Ghanem, Mander, & Gough, ; Krishnamurthy, Jahns, & Lasseter, ). Diesel generators are also the primary choice for power supply in remote areas (Tammam, Adrian, Rafic, & Jean, ).…”

Section: Introductionmentioning

confidence: 99%

Modeling of Distributed Generators Resilience Considering Lifeline Dependencies During Extreme Events

Krishnamurthy

Kwasinski

2019

Risk Analysis

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This article derives distributed generators resilience models considering lifeline dependencies during extreme events. The effects on power resilience of storage capacity, fuel delays, and fuel order placements are analyzed. Results indicate that storage capacity has an important role in improving overall power supply resilience as seen by loads. In addition, the presented models provide a quantifiable approach in evaluating fuel delivery resilience. The models facilitate studying fuel scheduling policies and local fuel storage sizing for specified resilience requirements. It is observed that tank autonomy greatly affects the flexibility in employing scheduling policies supplying fuel to generators. Resilience dependence on buffer autonomy is high during the first few days of extreme events, and this could have considerable effects on managing evacuations and rescue operations.

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“…Many of them have provided conceptual insights into critical interdependencies, and/or statistical tools for risk assessment, e.g. [11], [12]. In addition, these studies usually apply on larger scale power systems than autonomous MGs, with different structural properties such as communication network redundancy [13].…”

mentioning

confidence: 99%

Analysis of Consensus-Based Islanded Microgrids Subject to Unexpected Electrical and Communication Partitions

Rosero

Velasco

Martí

et al. 2019

IEEE Trans. Smart Grid

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Microgrids are power systems consisting of an electrical network composed by distributed loads and generation units that may include a communication network for improved operation. The considered microgrid in islanded mode is driven by voltage source inverters implementing decentralized droop control for active power sharing together with a communicationbased consensus algorithm for frequency regulation. This paper analyses the microgrid performance subject to network failures that provoke network partitions. It is considered that the electrical partition leads to several sub-microgrids working in parallel where the power demand can be always guaranteed by the generation units, and the communication partition leads to several consensus algorithms also working in parallel. The double partitioning is analyzed through a closed-loop system model derived using the power flow equations that includes the electrical and communication connectivity. Analytical expressions for the steady-state values for both frequency and active power depending on the partitioning are derived. Selected experimental results on a low-scale laboratory microgrid illustrate the (undesirable) impact that unexpected partitions have in system performance.power sharing together with a communication-based consensus algorithm for frequency regulation [6].Apart from the known impact that natural disasters have in power systems, e.g. [7], the use of communication networks also impacts power systems, e.g. [8]. Hence, the interdependency between the electrical network and the communication network makes the problems of reliability, operation, and security more complex than in the traditional power grid.

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Effects of Power Electronics, Energy Storage, Power Distribution Architecture, and Lifeline Dependencies on Microgrid Resiliency During Extreme Events

Cited by 53 publications

References 30 publications

Advanced control solutions for enhanced resilience of modern power-electronic-interfaced distribution systems

Advanced control solutions for enhanced resilience of modern power-electronic-interfaced distribution systems

Modeling of Distributed Generators Resilience Considering Lifeline Dependencies During Extreme Events

Analysis of Consensus-Based Islanded Microgrids Subject to Unexpected Electrical and Communication Partitions

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