References of "Bilibin, Ilya 50000785"
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See detailContributions to thermal constraints management in radial active distribution systems
Bilibin, Ilya UL; Capitanescu, Florin UL

in Electric Power Systems Research (2014), 111

This paper deals with centralized thermal overload management in active radial distribution systems that host a significant amount of distributed generation (DG). We investigate the benefits of using ... [more ▼]

This paper deals with centralized thermal overload management in active radial distribution systems that host a significant amount of distributed generation (DG). We investigate the benefits of using remotely controlled switches to reduce the amount of curtailed DG to remove overload. To this end we extend an existing optimization model to the problem of minimizing the non-firm DG curtailment to remove overload. We discuss the pros and cons of the various overload management goals given the particular features of radial distribution grids and propose, wherever possible, the use of a power flow tracing-based procedure to select the non-firm generators that should participate in overload removal. Although the approach focuses on overload removal it also inhibits violation of operational constraints such as voltage limits that may occur due to network reconfiguration. We prove the interest and feasibility of our approach in four distribution networks. [less ▲]

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See detailA Comprehensive Centralized Approach for Voltage Constraints Management in Active Distribution Grid
Capitanescu, Florin UL; Bilibin, Ilya UL; Romero Ramos, Esther

in IEEE Transactions on Power Systems (2014), 29(2), 933-942

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 ... [more ▼]

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. [less ▲]

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See detailOverloads Management in Active Radial Distribution Systems: an Optimization Approach Including Network Switching
Bilibin, Ilya UL; Capitanescu, Florin UL; Sachau, Jürgen UL

in 2013 IEEE PES PowerTech (2013, June)

This paper focuses on the real-time overloads management in active radial distribution systems that host a significant amount of distributed generators (DGs). In order to possibly reduce the amount of ... [more ▼]

This paper focuses on the real-time overloads management in active radial distribution systems that host a significant amount of distributed generators (DGs). In order to possibly reduce the amount of generation curtailed to remove congestion, and hence harvest as much renewable energy as possible, we propose a centralized optimization approach that includes the option to use remotely controlled grid switches and breakers so as to transfer distributed generation between feeders. To mitigate the computational burden posed by modeling the switching actions as binary variables we build upon a very convenient existing optimization framework that, for a radial distribution grid, transforms precisely the original mixed integer nonlinear programming (MINLP) problem into a much simpler mixed integer quadratically constrained (MIQC) one. Although the approach focuses on overload removal in course of optimization it also pays attention not worsening other operational constraints such as voltage limits. We prove the interest and feasibility of our approach using a 33-bus benchmark distribution system as well as a 61-bus real-life distribution system model. [less ▲]

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See detailTowards optimal post-fault self-healing in future smart distribution grids
Capitanescu, Florin UL; Bilibin, Ilya UL; Sachau, Jürgen UL

in Renewable Energy & Power Quality Journal (2013)

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 ... [more ▼]

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. [less ▲]

Detailed reference viewed: 196 (24 UL)