Application of Soft Open Points for Increasing the Supply Restoration in Active Distribution Networks

Picioroaga, Irina I.; Tudose, Andrei M.; Sidea, Dorian O.; Bulac, Constantin; Toma, Lucian

doi:10.1109/atee52255.2021.9425287

Cited by 7 publications

(6 citation statements)

References 17 publications

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“…The converted model ( 13) can be efficiently solved by a commercial solver, such as CPLEX or MOSEK [33]. 7) − (8. f), ( 9) − ( 10), (12) The SOCP relaxation results in a small gap between the proposed model ( 13) and the original MINLP model (11). The relaxation deviation value is generally at the 1.0 × 10 −5 level with tolerable accuracy [31].…”

Section: Solution Methodologymentioning

confidence: 99%

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Multi-stage supply restoration of active distribution networks with SOP integration

Jian

et al. 2022

Sustainable Energy, Grids and Networks

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Section: Solution Methodologymentioning

confidence: 99%

“…Ref. [12] investigated the optimal coordination of multiple SOPs to improve the self-healing ability of ADN. Ref.…”

Section: Introductionmentioning

confidence: 99%

Multi-stage supply restoration of active distribution networks with SOP integration

Jian

et al. 2022

Sustainable Energy, Grids and Networks

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“…According to the idea that the Sigmoid function is used to map the value of speed to the interval [0, 1] to represent the probability of binary bit taking 1 by speed in binary particle swarm optimization algorithm, the step can also be mapped to the interval [0, 1] to realize the conversion of its binary encoding. Its function expression is shown in (30):…”

Section: T X T X T X T ( ) = [ ( ) ( ) … ( )]mentioning

confidence: 99%

A resilient self‐healing approach for active distribution networks considering dynamic microgrid formation

Zhao,

Tan,

et al. 2023

Energy Science & Engineering

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A large number of renewable distributed generation (DG) systems connect to the distribution network, affecting the structure of the traditional distribution network and forming an active distribution network (ADN). Although the accelerating grid penetration of DGs brings significant challenges to the distribution network operation, the islanded operation capability of DGs provides a flexible solution to the self‐healing of ADNs from faults. To ensure that ADN can quickly recover and reconfigure in the event of a fault and continue to maintain safe, economical, and reliable operation, this paper proposes a dynamic microgrid formation method for ADNs combined with the dynamic network reconfiguration and intentional islanding operation of DGs. An optimization model is designed to represent the proposed self‐healing method, maximizing the load restoration and minimizing the DG cost, line network loss, and voltage excursion simultaneously. A binary hybrid optimization solver is applied to pursue the optimal self‐healing schedules from the optimization model. The self‐healing method is evaluated on the Institute of Electrical and Electronics Engineers (IEEE) 33‐node system and the IEEE 123‐node system, which indicate its rationality and effectiveness fully verified. By optimizing the on and off states of the normally open switches and the on‐grid and off‐grid operation states of DGs, ADNs not only get healed with minimum load curtailment, but also achieve minimal DG generation cost, network loss, and node voltage deviation. In addition, compared with traditional solvers, the proposed solver has a slightly higher computational time than the corresponding solver.

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“…The second-order cone relaxation method is applied to the thermal stability constraints in the distribution network and pipeline flow balance equations with non-linear constraints in the natural gas network, which are written in the form of the above standard second-order cone, and expressed in the form of two norms as shown in (25). The SOP capacity constraint is transformed into the rotation cone constraint, and then ( 26) is obtained.…”

Section: Urban Integrated Energy Systems Load Restoration Model With ...mentioning

confidence: 99%

“…[24], which proves that SOP is an effective tool to improve network operation in reducing network loss, balancing load and improving voltage distribution. Reference [25] proposes a large‐scale mixed integer non‐linear optimization problem model to optimally determine the optimal installation sites and capacities of SOPs, considering the characteristics of DG and network topology changes proposes a mixed‐integer second‐order cone programming methodology to obtain the optimal coordination of multiple SOPs in order to improve the self‐healing capabilities of active distribution networks with multiple photovoltaics. Recently, some researchers begin to focus on the power supply restoration technology by the use of SOP.…”

Section: Introductionmentioning

confidence: 99%

Soft open points based load restoration for the urban integrated energy system under extreme weather events

Wang

et al. 2022

IET Energy Syst Integration

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With frequent occurrences of extreme natural disasters such as typhoons in urban integrated energy systems (UIES), it is of great significance to cope with different kinds of disturbances. This paper proposes a load restoration method under typhoon weather for urban distribution and natural gas networks based on soft open points (SOP). Firstly, the typhoon wind speed model is introduced and the line fault rates of distribution networks under typhoons are calculated. Secondly, the gas turbine and electric‐driven compressor are considered as the coupling units of the integrated electric–gas energy system, and related models are constructed. The fault analysis method of the natural gas network is proposed considering the faults in the distribution network lead by typhoons. Thirdly, SOP installed in the distribution network with the V/f control mode is applied to restore electrical loads and provide voltage support for the loads on the fault side. After that, the loads of the gas network could also be restored because of the restoration of the coupling units. Optimal energy flow is applied to determine the output of the power and gas sources, coupling units and also the loads to be restored. Finally, the fault rate of each line under typhoon disaster is analysed and the correctness and effectiveness of the resilience improving method based on SOP are verified with test systems UIES E33‐G14 and UIES E123‐G48.

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Application of Soft Open Points for Increasing the Supply Restoration in Active Distribution Networks

Cited by 7 publications

References 17 publications

Multi-stage supply restoration of active distribution networks with SOP integration

Multi-stage supply restoration of active distribution networks with SOP integration

A resilient self‐healing approach for active distribution networks considering dynamic microgrid formation

Soft open points based load restoration for the urban integrated energy system under extreme weather events

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