Reliable load flow technique for radial distribution networks

Esposito, Angelo; Ramos, Esther Romero

doi:10.1109/59.780924

Cited by 126 publications

(26 citation statements)

References 17 publications

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“…This model relies in turn on the power flow model for radial distribution systems proposed in [26], that we briefly describe in the next subsection.…”

Section: The Miqc Optimization Modelmentioning

confidence: 99%

A Comprehensive Centralized Approach for Voltage Constraints Management in Active Distribution Grid

Capitanescu

Bilibin

Ramos

2014

IEEE Trans. Power Syst.

115

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Abstract-This paper deals with the management of voltage constraints in active distribution systems that host a significant amount of distributed generation (DG) units. To this end we propose a centralized optimization approach which aims at minimizing the amount of MW curtailment of non-firm DG to remove voltage constraints. The salient feature of this approach is that it comprehensively and properly models the full variety of possible control means (i.e. DG active/reactive power including DG shut-down, on load tap changing transformer ratio, shunt capacitor, and remotely controlled switches or breakers), most of which having a discrete behavior. We develop and compare the performances of two optimization models on a snapshot basis for various distribution systems up to 1089 buses. In particular we show that the use of remotely controlled switches so as to transfer DG between feeders in case of voltage constraints may lead to significant reduction of the DG curtailment.

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“…This model relies in turn on the power flow model for radial distribution systems proposed in [26], that we briefly describe in the next subsection.…”

Section: The Miqc Optimization Modelmentioning

confidence: 99%

A Comprehensive Centralized Approach for Voltage Constraints Management in Active Distribution Grid

Capitanescu

Bilibin

Ramos

2014

IEEE Trans. Power Syst.

115

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“…These models rely in turn on the power flow model for radial distribution systems proposed in [20]. The model uses a branch quadruple model as shown in Figure 1, in which the notations are selfexplanatory.…”

Section: Proposed Approachmentioning

confidence: 99%

“…The voltages magnitude and angle can be retrieved straightforwardly from the solution of these new equations by exploring the graph tree downward from the substation slack bus [20]:…”

Section: A Alternative Power Flow Equations For Radial Distribution mentioning

confidence: 99%

“…The model proposed in [20] consists, for a grid with buses, in replacing the conventional nonlinear power flow equations with a set of equations ( linear and quadratic). This can be done by replacing the conventional complex voltage unknowns with two variables per branch ( and ) and one per bus ( ) as follows:…”

Section: A Alternative Power Flow Equations For Radial Distribution mentioning

confidence: 99%

“…Therefore the set of power flow equations proposed in [20] is made of the quadratic constraints (4) together with the linear equations:…”

Section: A Alternative Power Flow Equations For Radial Distribution mentioning

confidence: 99%

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Towards optimal post-fault self-healing in future smart distribution grids

Capitanescu

Bilibin

Sachau

2024

RE&PQJ

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Abstract. This paper deals with a key functionality of the future distribution smart grids namely the automatic post-fault network self-healing. To this end we propose an optimization approach that aims finding the post-fault grid topology that minimizes the amount of unsupplied energy to consumers. The approach extends existing optimization models, developed in the context of losses minimization, for our particular application and proposes ways to overcome their limitations. We prove the interest of the approach on a 33-bus benchmark distribution system as well as on a 61-bus real-life distribution grid.

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Bibliography

2021

Mathematical Programming for Power Systems Operation With Applications in Python

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Reliable load flow technique for radial distribution networks

Cited by 126 publications

References 17 publications

A Comprehensive Centralized Approach for Voltage Constraints Management in Active Distribution Grid

A Comprehensive Centralized Approach for Voltage Constraints Management in Active Distribution Grid

Towards optimal post-fault self-healing in future smart distribution grids

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