Coordinated operation strategy of distribution network with the multi-station integrated system considering the risk of controllable resources

Cheng, Lin; Wan, Yuxiang; Qi, Ning; Zhou, Yu

doi:10.1016/j.ijepes.2021.107793

Cited by 7 publications

(4 citation statements)

References 30 publications

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“…Assuming that I describes the total current on the low-voltage side of the transformer in the new distribution station area, and the current set of three-phase users is described by a I , b I and c I respectively [5][6], then:…”

Section: Analysis Of Load Security Region In Realizing New Distributi...mentioning

confidence: 99%

Design of new load security region analysis method for distributed photovoltaic development and consumption in distribution area

Li,

zhang,

Zhao

et al. 2024

Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023)

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In order to avoid the influence of unbalanced load in distribution station area, resulting in economic losses in distribution station area, a new analysis method of load security region in distribution station area is proposed. Design the technical scheme of coordinated operation control of source, grid, load and storage for safe and efficient power supply in rural distribution station area, and collect multi-source data of load terminals in new distribution station area; According to the operation control architecture combining safe operation risk with flexibility and rigidity, the load balance objective function of the new distribution station area is calculated, and the load security region analysis of the new distribution station area is realized. The experimental results show that according to the actual state and monitoring results at different time points, the early warning information about the load safety region of the distribution station area is obtained. When the load of the new distribution station area is in the low-load scene, the voltage amplitude in this area changes little, while when it is in the high-load scene, the voltage amplitude changes greatly.

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Section: Analysis Of Load Security Region In Realizing New Distributi...mentioning

confidence: 99%

Design of new load security region analysis method for distributed photovoltaic development and consumption in distribution area

Li,

zhang,

Zhao

et al. 2024

Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023)

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“…On the downlink side, EPON is a way to broadcast messages to individual ONUs in an OLT. In the uplink direction, EPON is a multipoint-to-multipoint network that utilizes time multiplexing (TDM) technology to divide the entire effective uplink channel bandwidth into transmission units that can be assigned to activate ONUs [21]. In this distribution network access system, the protection method of the distribution network can be realized in case of fiber interruption or OLT failure, but the choice of OLT is mainly ONU.…”

Section: Distribution Network Communication System Using Epon Technologymentioning

confidence: 99%

Applied Research on Intelligent Collection System of Positioning Information for Multi-source Heterogeneous Distribution Communication

Yang,

Zhang,

Zhang

et al. 2023

Applied Mathematics and Nonlinear Sciences

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In order to better realize the intelligent perception of fault location information of power distribution communication access networks in different scenarios, this paper carries out the construction of a power distribution communication network system through industrial Ethernet technology combined with EPON technology under fiber optic communication technology. Based on GIS technology and combined with OTDR technology, we constructed a fault location system for the fiber optic cable of the power distribution communication network so as to realize the acquisition of fault location information. From the multi-source state information, the joint Kalman filtering model is used to excavate the characteristics of the grid operation state, and then the fusion of multi-source heterogeneous data of power distribution communication is realized. To verify the effectiveness of the distribution communication network system constructed in this paper for locating fault information and intelligently collecting power consumption, system tests were conducted. The results show that the relative error of the node voltage estimation of the joint Kalman filter algorithm is below 0.015%, which improves the accuracy of fault identification in the distribution network. The system constructed in this paper for information transmission connectivity testing PON port light-emitting power range of 2~6dm, receiving optical power greater than -25dm, each PON port without power overload. This shows that the distribution automation communication network constructed in this paper meets the information collection requirements, and the construction of an intelligent distribution communication network can meet the requirements of distribution automation and can also accurately collect the fault location information of the distribution network.

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“…In recent years, the reliability of the power supply has become an indispensable requirement for the development of DN (Cheng et al, 2021). However, DNs are vulnerable to attacks since most of them are directly exposed in the field and rely on widely configured communication devices for information interaction (Zhang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

A resilience-oriented multi-stage operation strategy for distribution networks considering multi-type resources

Yao,

Miao,

Wang

et al. 2023

Front. Energy Res.

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With the increasing severity of global warming and the rapid evolution of cyber-attack techniques, the enhancement of distribution network (DN) resilience that can effectively cope with natural disasters and man-made attacks has received extensive attention. Hence, in the context of a high impact low probability (HILP) event where attackers launch malicious attacks after a natural disaster occurs, a multi-stage DN operation strategy for resilience enhancement is proposed considering multi-type resources, such as gas turbines, stationary energy storage systems, mobile energy storage systems (MESSs), repair crews (RCs) and network reconfiguration. Firstly, the operation process of DN is divided into five stages based on the time lag between the natural disaster and the man-made attacks: the normal operation stage, the disaster disruption stage, the post-disaster degradation stage, the man-made attack stage and the defense and recovery stage. Secondly, under the background of a coupled power-transportation system, the optimal scheduling model for each stage of DN is established considering the effects of dynamic changes in traffic flow on the movement process of MESSs and RCs. Finally, the model is converted into a 5-layer mixed integer linear programming (MILP) problem that can be solved by sophisticated optimization software according to the time series relationship, and a case study is carried out with a modified IEEE 33-node system and the corresponding transportation network. The results demonstrate that under extreme scenarios, the proposed model can guarantee the load-side power supply as much as possible through flexible cooperation between multi-type resources, effectively enhancing the resilience of the DN.

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Coordinated operation strategy of distribution network with the multi-station integrated system considering the risk of controllable resources

Cited by 7 publications

References 30 publications

Design of new load security region analysis method for distributed photovoltaic development and consumption in distribution area

Design of new load security region analysis method for distributed photovoltaic development and consumption in distribution area

Applied Research on Intelligent Collection System of Positioning Information for Multi-source Heterogeneous Distribution Communication

A resilience-oriented multi-stage operation strategy for distribution networks considering multi-type resources

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