An Overview of Soft Open Points in Electricity Distribution Networks

Jiang, Xun; Zhou, Yue; Ming, Wenlong; Yang, Peng; Wu, Jianzhong

doi:10.1109/tsg.2022.3148599

Cited by 113 publications

(27 citation statements)

References 86 publications

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“…Some flexible devices, such as soft open point (SOP) and energy storage (ES) systems, are effective solutions to evade these problems. As an emerging power electronic equipment, SOPs can realize the flexible interconnection among feeders and adjust power flow from space, installed in place of the conventional tie switches [4]. ES is connected to the AC distribution network through DC-DC converters and voltage source converters (VSC), which mitigates the fluctuations of PV output and load demand [5].…”

Section: Motivation Of This Researchmentioning

confidence: 99%

Coordinated allocation of soft open point and converter‐based energy storage systems in PV penetrated active distribution networks

Zhou

Tao

Wang

et al. 2022

IET Renewable Power Gen

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Soft open point-based energy storage (SOP-based ES) can realize the real-time adjustment of transmission power in space and peak load shaving in time, further promoting the integration of distributed generations (DGs) and decreasing the allocation cost. This article proposed an optimal planning model for coordinated allocation of SOP-based ES and conventional independent ES systems in PV penetrated Active Distribution Networks (ADN). First, the planning models of SOP-based ES, battery of ES systems and its lifetime are established. Second, the proposed coordinated allocation model aims to minimize the total planning cost, including power exchange cost, investment cost, operation cost, battery degradation cost and loss cost. In order to solve the uncertainty of PV output and load demand, the stochastic optimization model is established with scenarios reduced by the Kmeans clustering technique. Third, the linearization model of the battery degradation cost is derived to transform the optimization model into a mixed integer linear programming (MILP) model. Finally, the presented model is implemented on an IEEE 33-node distribution system to confirm its effectiveness. The case study results show that the coordinated allocation of SOP and converter-based ES can effectively reduce the allocation cost of ES and promote the integration of DGs.

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Section: Motivation Of This Researchmentioning

confidence: 99%

Coordinated allocation of soft open point and converter‐based energy storage systems in PV penetrated active distribution networks

Zhou

Tao

Wang

et al. 2022

IET Renewable Power Gen

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“…But that doesn't mean the last chain is the least important. Distribution of electricity supply to individuals might be small and insignificant in the supply chain process, but to consumers it is important [18].…”

Section: Distribution or Business Servicesmentioning

confidence: 99%

Supply Chain Performance Analysis and Improvement for Electricity Industry

Oktaviani¹,

Asrol²

2022

IJETAE

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Electricity is the most basic need for all human activities. Electricity is also a primary need in various sectors, such as industry, households, buildings, and even transportation. The importance of ensuring and sustaining the electricity industry is necessary since it affects the economic, environmental and defence sectors. This study aims to calculate the performance of electricity supply chain in Indonesia to support tourism industry. Data was collected from electricity supply chain business in Batam-Bintan Island, in which known as one of most popular entrance for international tourist in Indonesia. This research resulted there are 13 metrics of SCOR performance attribute need to improve. electricity supply chain in Batam and Bintan organized by four main actors. The result show that the supply chain performance of primary energy was 82.13%, power plant was 76.06%, transmission was 68.97% and distribution unit was 72.82%.

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“…Furthermore, variations in the objective functions with increased DG penetration were compared and discussed, considering the network without SOP, with one SOP and the NR optimization. An overview of benefit quantification of SOPs to distribution systems was found in [8].…”

Section: Introductionmentioning

confidence: 99%

Optimization Approach for Planning Soft Open Points in a MV-Distribution System to Maximize the Hosting Capacity

Oliveira

2023

Energies

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Distributed energy resources (DERs) based on renewable power, such as photovoltaic (PV), have been increasing worldwide. To support this growth, some technologies have been developed to increase the hosting capacity (HC) of distribution networks (DNs), such as the Soft Open Point (SOP), which can replace normally open switches in DNs with the advantage of allowing power and voltage control. The benefits of SOPs in terms of increasing distributed generation (DG) hosting capacity can be enhanced by network reconfiguration (NR). In this work, an optimization-based approach is proposed for placing SOP in DN with simultaneous NR; that is, the proposed algorithm consists of a promising alternative to previous works in the literature that deal with SOP placement and NR in an iteratively way or in a two-step procedure, considering that better results can be obtained by simultaneously handling both options, as shown in the introduced case studies. The optimization problem is modeled as nonlinear mixed-integer programming, and solved by a Multi-objective Artificial Immune System (MOAIS). The proposed algorithm is applied to a well-known medium-voltage (MV) test system that is widely used for the problem at hand, and the results show the effectiveness of the proposed approach to maximize the HC by optimizing the SOP installation site in the tested system. An important outcome is that the association of SOP planning and NR in a simultaneous manner tends to provide better quality solutions, where HC can overcome 400% for multiple SOPs. Another outcome is that the proposed MOAIS is able to provide good concurrent solutions to support the decision-making of the DN planner.

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An Overview of Soft Open Points in Electricity Distribution Networks

Cited by 113 publications

References 86 publications

Coordinated allocation of soft open point and converter‐based energy storage systems in PV penetrated active distribution networks

Coordinated allocation of soft open point and converter‐based energy storage systems in PV penetrated active distribution networks

Supply Chain Performance Analysis and Improvement for Electricity Industry

Optimization Approach for Planning Soft Open Points in a MV-Distribution System to Maximize the Hosting Capacity

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