TSC-based Method to Enhance Asset Utilization of Interconnected Distribution Systems

Xiao, Jun; Zhang, Ting; Zu, Guoqiang; Li, Fangxing; Wang, Chengshan

doi:10.1109/tsg.2016.2598816

Cited by 14 publications

(10 citation statements)

References 25 publications

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“…Combined with the power supply margin obtained by the upper layer, the power sales company integrates the quotation scheme to participate in the power transaction with the goal of maximum social benefits, obtains the winning electricity quantity of the power sales company, and adjusts the load of the distribution network once. (14) where: B u,t , D u,t represent the quotation and electricity demand of the electricity sales company u during the t period; B v,t , P v,t respectively represent the quotation of the power generation entity v and the market power output; α u,t , β v,t represent the electricity sales company and the power generation main body at time t respectively. The 0-1 variable of the winning bid.…”

Section: B Underlying Sales Company Optimization Model 1) Electricity Purchase Model Of Power Selling Companymentioning

confidence: 99%

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Optimization of Power Supply Capacity of Distribution Network Considering the Participation of Power Sales Companies in Spot Power Trading

Fan

et al. 2019

IEEE Access

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As an important part of the electricity trading market, the power sales company is an important part of the electricity trading market. It can not only be used as the main body to buy electricity from the market transaction but also as the main body to transmit electricity to the market and users, which changes the power flow distribution of the distribution network and has a certain impact on the power supply capacity of the distribution network. Based on the dual roles of power sales companies, this paper, first, analyzes the interaction between market transactions and power supply capacity of distribution networks. Second, considering the internal controllable distributed generation and controllable load participating demand-side response, a double-layer model of distribution network power supply capacity considering the participation of power sales companies in spot trading is established. According to the characteristics of the model, this paper uses the improved repetitive power flow algorithm and the original dual interior point method to solve the model. Finally, the improved IEEE33 node is verified. The example shows that the power sales company participates in the power transaction by flexibly adjusting the power purchase and sale strategy, which not only ensures the profit but also improves the power supply capacity of the distribution network.INDEX TERMS Power sales company, electric power transaction, power supply capacity, improved repetitive power flow algorithm.

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Section: B Underlying Sales Company Optimization Model 1) Electricity Purchase Model Of Power Selling Companymentioning

confidence: 99%

“…However, this method has certain limitations and cannot deal with the problem under uncertainty scenarios. In [14], the nonlinear model is transformed into a linear model and solved by Lingo software. The calculation speed is increased, but the obtained result is not accurate enough.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Power Supply Capacity of Distribution Network Considering the Participation of Power Sales Companies in Spot Power Trading

Fan

et al. 2019

IEEE Access

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“…The article (Xiao et al, 2018b) proposes the system-level concept of the flexible distribution network (FDN). An FDN is defined as the distribution network with flexible power flow controllability using multiterminal SOPs (including twoterminal SOPs).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Distributed Generation Accommodation in Flexible Distribution Networks

Xiao

Wang

2021

Front. Energy Res.

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This work proposes a method to analyze distributed generation (DG) accommodation in a flexible distribution network (FDN). Firstly, the DG-load matching degree is proposed to quantitatively describe the power balance degree of DG and load in a distribution network. Secondly, the accommodation ratio of DG is proposed and divided into a DG-load accommodation ratio and DG-network-load accommodation ratio, to distinguish whether the index takes the network operational constraints into account. We derive the DG-load accommodation ratio directly from the matching degree and propose the simulation model of sequential production to solve the DG-network-load accommodation ratio. Finally, the cases of FDN under the scenarios of different matching degrees are studied and compared with those of the traditional rigid distribution network. The results show that the improvement of the accommodation ratio by upgrading the rigid distribution network to an FDN is conditional, which is related to not only the matching degree of the whole network but also that of each local network. The DG-network-load accommodation ratio will tend to the DG-load accommodation ratio if proper planning or optimization measures are taken. We find that the capacity of branches adjacent to the DG bus mainly limit the DG accommodation in the FDN, and it is recommended to relocate the DGs and enlarge the capacity of those branches.

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“…Dai et al 16 proposed an assessment method of security region based on multi‐parameter planning. As for TSC, Xiao et al 17 proposed the overall planning idea and method of the distribution network based on TSC, which can greatly reduce the capacity‐load ratio and make full use of the existing distribution network. The TSC curve was also proposed, which provides a more accurate reference for the selection of planning schemes 18 .…”

Section: Introductionmentioning

confidence: 99%

Application of geometrical observation of security region in distribution network enhancement

Xiao

Qiu

et al. 2021

Int Trans Electr Energ Syst

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Summary This paper applies the geometrical observation of security regions in distribution network enhancement. Firstly, the concepts of distribution system security region (DSSR) and total supply capability (TSC) curve are introduced. Secondly, to observe DSSR and TSC more intuitively, new geometrical shape figures of DSSR such as the spiral figure of the region, the radar figure of boundary, and the concave figure of the boundary are proposed. New geometrical indexes, such as radius of DSSR, area of shape figure, shape distortion indexes and concavity indexes are also proposed. The proposed indexes and figures can fully describe the security and efficiency of a given distribution network from the perspective of the size and shape of DSSR. Thirdly, the indexes family are proposed, and the concrete method of the distribution network enhancement is presented based on the indexes family. Finally, the expanded IEEE‐RBTS‐BUS4 case is used to verify the proposed method. The results show that the proposed method can intuitively show the changes of the enhanced distribution network in the terms of DSSR and TSC curves. This paper proposes a new observation method and analysis tool for the distribution network from the perspective of security and efficiency, which is an important supplement to the traditional enhancement of the distribution network.

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TSC-based Method to Enhance Asset Utilization of Interconnected Distribution Systems

Cited by 14 publications

References 25 publications

Optimization of Power Supply Capacity of Distribution Network Considering the Participation of Power Sales Companies in Spot Power Trading

Optimization of Power Supply Capacity of Distribution Network Considering the Participation of Power Sales Companies in Spot Power Trading

Analysis of Distributed Generation Accommodation in Flexible Distribution Networks

Application of geometrical observation of security region in distribution network enhancement

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