Research on the Access Planning of SOP and ESS in Distribution Network Based on SOCP-SSGA

Jia, Yiwei; Li, Qiong; Liao, Xu; Liu, L. L.; Wu, Jianping

doi:10.3390/pr11061844

Cited by 3 publications

(1 citation statement)

References 16 publications

(17 reference statements)

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“…Coupled with DESSs, SOPs can work as a reserve source to decrease the fluctuation of distributed generation power, reduce the over-limit situation and price gap between different nodes, maximize social welfare, and enhance user satisfaction. The combined utilization of DESSs and SOPs not only enhances the spatial-scale capability for power flow distribution but also addresses the issue of energy supply-demand imbalance at a temporal scale [5]. Since SOP functionality relies on fully controllable power electronic devices, its configuration and maintenance costs are relatively high.…”

Section: Introductionmentioning

confidence: 99%

Coordinated Configuration of SOPs and DESSs in an Active Distribution Network Considering Social Welfare Maximization

Liu,

Sun,

Hong

et al. 2024

Sustainability

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In recent years, the penetration rate of intermittent distributed generation (DG) in active distribution networks has been steadily increasing, leading to prominent issues such as voltage violations and network congestion. Coordinated operation of soft open points (SOPs) and distributed energy storage systems (DESSs) enable flexible resource management in both spatial and temporal dimensions, allowing real-time voltage regulation and flow control. This enhances the controllability, sustainability, and economic efficiency of the distribution network, ultimately improving user satisfaction. The optimization of this coordinated configuration has become a central challenge in research. Taking the different characteristics of DESSs and SOPs into account, this paper proposes a coordinated configuration method by introducing local marginal price (LMP) under the configuration scheme. The framework is modeled as a three-level problem, including planning and operation levels. Initially, typical scenarios are generated to address the uncertainty of distributed generation operation. At the upper level, the DESS configuration is optimized to minimize annual operational costs, while at the middle level, SOPs are planned based on the annual comprehensive operational cost of the distribution network. At the lower level, the objective is set as social welfare maximization to reflect user satisfaction by incorporating LMP as a planning indicator. It is then transformed and solved as a mixed-integer second-order programming model with a hybrid optimization algorithm. The model is established with the modified IEEE 33-node distribution system as a case study to validate the feasibility of the proposed configuration method. The case study results demonstrate the effectiveness of the proposed approach in optimally configuring SOPs with DESSs to reduce overall annual operating costs and enhance the economic efficiency of the system.

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Section: Introductionmentioning

confidence: 99%

Coordinated Configuration of SOPs and DESSs in an Active Distribution Network Considering Social Welfare Maximization

Liu,

Sun,

Hong

et al. 2024

Sustainability

View full text Add to dashboard Cite

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Coordinated planning of soft open point and energy store system in active Distribution networks under source-load imbalance

Wang,

2024

Electric Power Systems Research

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A Rotating Tidal Current Controller and Energy Router Siting and Capacitation Method Considering Spatio-Temporal Distribution

Jia,

Zhou,

Gao

et al. 2024

Energies

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As the proportion of new energy access increases year by year, the resulting energy imbalance and voltage/trend distribution complexity of the distribution network system in the spatio-temporal dimension become more and more prominent. The joint introduction of electromagnetic rotary power flow controller (RPFC) and energy router (ER) can improve the high proportion of new active distribution network (ADN) consumption and power supply reliability from both spatial and temporal dimensions. To this end, the paper proposes an ADN expansion planning method considering RPFC and ER access. A two-layer planning model for RPFC and ER based on spatio-temporal characteristics is established, with the upper model being the siting and capacity-setting layer, which takes the investment and construction cost of RPFC and ER as the optimization objective, and the lower model being the optimal operation layer, which takes the lowest operating cost of the distribution network as the objective. The planning model is solved by a hybrid optimization algorithm with improved particle swarm and second-order cone planning. The proposed planning model and solving algorithm are validated with the IEEE33 node example, and the results show that the joint access of RPFC and ER can effectively improve the spatial-temporal distribution of voltage in the distribution network and has the lowest equivalent annual value investment and operation cost.

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Research on the Access Planning of SOP and ESS in Distribution Network Based on SOCP-SSGA

Cited by 3 publications

References 16 publications

Coordinated Configuration of SOPs and DESSs in an Active Distribution Network Considering Social Welfare Maximization

Coordinated Configuration of SOPs and DESSs in an Active Distribution Network Considering Social Welfare Maximization

Coordinated planning of soft open point and energy store system in active Distribution networks under source-load imbalance

A Rotating Tidal Current Controller and Energy Router Siting and Capacitation Method Considering Spatio-Temporal Distribution

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