Resilient operation of multiple energy carrier microgrids

Manshadi, Saeed D.; Khodayar, Mohammad E.

doi:10.1109/tdc.2016.7519947

Cited by 24 publications

(49 citation statements)

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“…Equations (6)-(9) express the nonlinear AC power flow equations. are the conductance/susceptance of lines; V it and / ikt are the voltage magnitude of buses and the voltage angle difference between buses i and k at time interval t. In (6) and (7), p ST t and q ST t are merely used for the bus at which the MG is connected to the upstream grid, i.e., the substation buses at the points of common coupling (PCC). For the remaining buses, these two variables are omitted from the left side of (6) and (7), respectively.…”

Section: Operating Constraints Of Power Networkmentioning

confidence: 99%

“…Recently, some researchers have made strong efforts to propose energy management schemes for multi-carrier MGs [6][7][8][9][10]. In this regard, a hierarchical energy management system (EMS) for a multi-carrier MG was proposed in [6], where the thermal and NG management systems are integrated with the conventional EMS.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the time-scale decomposition, a hierarchical control structure utilizing the existing control schemes for different energy systems was designed to coordinate the sub-control layers. In another interesting work, a bi-level optimization model is proposed in [7] to identify the vulnerable components, and ensure the resilient operation of coordinated electricity and natural gas infrastructures considering multiple disruptions within the MG. The objective of the aforementioned work is to increase the resilience of energy supply and decrease the operation cost.…”

Section: Introductionmentioning

confidence: 99%

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Optimal energy management in multi-carrier microgrids: an MILP approach

Shekari¹,

Gholami²,

Aminifar³

2019

J. Mod. Power Syst. Clean Energy

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With the increasing interdependence of various energy carriers, the operation of power systems is found to correlate closely with the limitations on the other energy infrastructures. This paper presents a mixed-integer linear programming (MILP) model for the microgrid (MG) optimal scheduling considering technical and economic ties between electricity and natural gas (NG) systems. In the proposed methodology, different energy converters and storages, including combined heat and power (CHP) units, electricity/heat storage units, and distributed energy resources (DERs) are considered. The proposed model allows the MG operator to minimize the operation cost of the MG while different operational limitations on the energy hub are satisfied. The model is developed based on AC power flow constraints so as to respect reactive power and voltage security constraints. The efficiency and robustness of the proposed MILP formulation are successfully verified using a large-scale test MG.

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Section: Operating Constraints Of Power Networkmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimal energy management in multi-carrier microgrids: an MILP approach

Shekari¹,

Gholami²,

Aminifar³

2019

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

show abstract

“…Another important distinction is considering over-generation of units after the attack, which is neglected in the literature [12], [13], [16]. According to the attacker, a direct attack is to destroy the lines that connect the load with the network.…”

Section: Problem Formulation a Defender-attacker-defender Formulmentioning

confidence: 99%

“…However, the nonconvexity introduced by the gas pressure equation and the discontinuity brought by committing generation units prevents dualizing the lower level problem and complicates the computation. The method in [16] ignores the discontinuity from committing generators and uses a linear approximation of the Weymouth equation, so as to build a linear lower level problem. In the proposed method, the Weymouth equation is first replaced by its piecewise linear approximation with mixed integer linear form [19], yielding a mixed integer linear programming (MILP) lower level, then the nested C&CG algorithm proposed in [20] is applied to solve the D-A-D model with discrete recourse decisions.…”

mentioning

confidence: 99%

Robust Defense Strategy for Gas–Electric Systems Against Malicious Attacks

Wang

Wei

Wang

et al. 2017

IEEE Trans. Power Syst.

141

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This paper proposes a methodology to identify and protect vulnerable components of connected gas and electric infrastructures from malicious attacks, and to guarantee a resilient operation by deploying valid corrective actions (while accounting for the interdependency of gas pipeline network and power transmission network). The proposed mathematical formulation reduces to a tri-level optimization problem, where the lower level is a multiperiod economic dispatch of the gas-electric system, the middle level distinguishes the most threatening attack on the coupled physical infrastructures, and the upper level provides optimal preventive decisions to reinforce the vulnerable components and increase the system resilience. By reformulating the lower level problem as a mixed integer linear programming (MILP), a nested column-and-constraint generation (C&CG) algorithm is developed to solve the min-max-min model. Case studies on two test systems demonstrate the effectiveness and efficiency of the proposed methodology.Index Terms-natural gas system, power system, interdependency, tri-level optimization, vulnerability.

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An overview of the assessment metrics of the concept of resilience in electrical grids

Dehghani

Sedighizadeh

Haghjoo

2021

Int Trans Electr Energ Syst

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The subject of resilience in electrical grids has become more popular among researchers in recent decades due to the rise of worldwide natural disasters such as floods, severe storms, snow, and hailstorms as well as the imposition of high costs resulted from widespread outages. Various methods have been proposed to improve the resilience of electrical grids under different conditions. In each work, the authors have validated their proposed method based on a function or metric they have defined to clarify its effect on improving the resilience of electrical grid. However, to date, there is no standardized metric for assessing the resilience of an electrical grid and providing the possibility to compare the many strategies discussed in different papers. This paper tries to explain the metrics that have been presented in various researches in this regard so far, and it compares these metrics from different aspects in order to determine the most comprehensive metric.

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Resilient operation of multiple energy carrier microgrids

Cited by 24 publications

References 0 publications

Optimal energy management in multi-carrier microgrids: an MILP approach

Optimal energy management in multi-carrier microgrids: an MILP approach

Robust Defense Strategy for Gas–Electric Systems Against Malicious Attacks

An overview of the assessment metrics of the concept of resilience in electrical grids

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