Assessing distribution network sensitivity to voltage rise and flicker under high penetration of behind-the-meter solar

2020 ◽  
Vol 152 ◽  
pp. 1227-1240 ◽  
Author(s):  
Farzad Ferdowsi ◽  
Shahab Mehraeen ◽  
Gregory B. Upton
Keyword(s):  
Distribution Network ◽  
Voltage Rise ◽  
High Penetration ◽  
Network Sensitivity

Fast microgrids formation of distribution network with high penetration of DERs considering reliability

Energy ◽  
2021 ◽  
pp. 121524
Author(s):  
Tongxu Yang ◽  
Limei Zhang ◽  
Linteng Zhen ◽  
Yongfu Liu ◽  
Qianqian Song ◽  
...  
Keyword(s):  
Distribution Network ◽  
High Penetration

scholarly journals Adaptive Day-Ahead Prediction of Resilient Power Distribution Network Partitions

2021 ◽  
Author(s):  
Chinmay Shah ◽  
Richard Wies
Keyword(s):  
Power Distribution ◽  
Renewable Energy Sources ◽  
Optimization Technique ◽  
Distribution Network ◽  
Distribution Networks ◽  
Optimization Techniques ◽  
Power Distribution Networks ◽  
Power Distribution Network ◽  
High Penetration ◽  
Islanded Mode

The conventional power distribution network is being transformed drastically due to high penetration of renewable energy sources (RES) and energy storage. The optimal scheduling and dispatch is important to better harness the energy from intermittent RES. Traditional centralized optimization techniques limit the size of the problem and hence distributed techniques are adopted. The distributed optimization technique partitions the power distribution network into sub-networks which solves the local sub problem and exchanges information with the neighboring sub-networks for the global update. This paper presents an adaptive spectral graph partitioning algorithm based on vertex migration while maintaining computational load balanced for synchronization, active power balance and sub-network resiliency. The parameters that define the resiliency metrics of power distribution networks are discussed and leveraged for better operation of sub-networks in grid connected mode as well as islanded mode. The adaptive partition of the IEEE 123-bus network into resilient sub-networks is demonstrated in this paper.

scholarly journals The Optimal Allocation and Operation of an Energy Storage System with High Penetration Grid-Connected Photovoltaic Systems

2020 ◽  
Vol 12 (15) ◽  
pp. 6154 ◽  
Author(s):  
Hui Wang ◽  
Jun Wang ◽  
Zailin Piao ◽  
Xiaofang Meng ◽  
Chao Sun ◽  
...  
Keyword(s):  
Energy Storage ◽  
Power Loss ◽  
Power Flow ◽  
Optimal Allocation ◽  
Storage System ◽  
Distribution Network ◽  
Energy Storage System ◽  
Pv Systems ◽  
High Penetration ◽  
Storage Optimization

High-penetration grid-connected photovoltaic (PV) systems can lead to reverse power flow, which can cause adverse effects, such as voltage over-limits and increased power loss, and affect the safety, reliability and economic operations of the distribution network. Reasonable energy storage optimization allocation and operation can effectively mitigate these disadvantages. In this paper, the optimal location, capacity and charge/discharge strategy of the energy storage system were simultaneously performed based on two objective functions that include voltage deviations and active power loss. The membership function and weighting method were used to combine the two objectives into a single objective. An energy storage optimization model for a distribution network considering PV and load power temporal changes was thus established, and the improved particle swarm optimization algorithm was utilized to solve the problem. Taking the Institute of Electrical and Electronic Engineers (IEEE)-33 bus system as an example, the optimal allocation and operation of the energy storage system was realized for the access of high penetration single-point and multi-point PV systems in the distribution network. The results of the power flow optimization in different scenarios were compared. The results show that using the proposed approach can improve the voltage quality, reduce the power loss, and reduce and smooth the transmission power of the upper-level grid.

scholarly journals Reliability Assessment for AC/DC Hybrid Distribution Network With High Penetration of Renewable Energy

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 153141-153150 ◽  
Author(s):  
Wei Wei ◽  
Yitong Zhou ◽  
Jie Zhu ◽  
Kai Hou ◽  
He Zhao ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Distribution Network ◽  
Reliability Assessment ◽  
High Penetration ◽  
Hybrid Distribution
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