Multi-Stage Optimal Placement of Branch PMU in Active Distribution Network

energyo ◽  
2019 ◽  
Author(s):  
Wang Shu ◽  
Kong Xiangrui ◽  
Yan Zheng ◽  
Xu Xiaoyuan ◽  
Wang Han
Keyword(s):  
Distribution Network ◽  
Optimal Placement ◽  
Active Distribution Network ◽  
Multi Stage

Multi-Stage Optimal Placement of Branch PMU in Active Distribution Network

2018 ◽  
Vol 19 (4) ◽  
Author(s):  
Wang Shu ◽  
Kong Xiangrui ◽  
Yan Zheng ◽  
Xu Xiaoyuan ◽  
Wang Han
Keyword(s):  
Control Strategies ◽  
Probability Distributions ◽  
Distribution Network ◽  
Load Flow ◽  
Optimal Placement ◽  
Measurement Unit ◽  
Monitoring And Control ◽  
Measuring Device ◽  
Active Distribution Network ◽  
Multi Stage

Abstract The penetration of distributed generation and electric vehicles requires advanced monitoring and control strategies to maintain the reliable operation of active distribution network (ADN). Phasor measurement unit (PMU), as an advanced measuring device, has been applied in the operation of transmission systems for decades. Recently, it is anticipated that PMUs can be adopted in the distribution network. In this paper, the optimal branch PMU (BPMU) placement is studied. First, an optimization model for the multi-stage BPMU placement is established considering the observability of ADN. Moreover, the weights of buses are designed to consider the influence of uncertain renewable energy generation and loads. Then, probabilistic load flow (PLF) is used to solve power flow with uncertainties, and weights of buses are obtained based on probability distributions of voltage magnitude. Finally, binary integer programming (BIP) is adopted to obtain the locations of BPMUs. The proposed method is tested on customized IEEE 33-bus and PG&E 69-bus distribution network, and the results are compared with those considering other methods.

scholarly journals Hierarchical Scheduling Scheme for AC/DC Hybrid Active Distribution Network Based on Multi-Stakeholders

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2830 ◽  
Author(s):  
Chang Ye ◽  
Shihong Miao ◽  
Yaowang Li ◽  
Chao Li ◽  
Lixing Li
Keyword(s):  
Optimization Model ◽  
Distribution Network ◽  
Hierarchical Optimization ◽  
Active Distribution Network ◽  
Scheduling Scheme ◽  
Multi Stage ◽  
Flexible Loads ◽  
Level Model ◽  
Load Regulation ◽  
Upper Level

This paper presents a hierarchical multi-stage scheduling scheme for the AC/DC hybrid active distribution network (ADN). The load regulation center (LRC) is considered in the developed scheduling strategy, as well as the AC and DC sub-network operators. They are taken to be different stakeholders. To coordinate the interests of all stakeholders, a two-level optimization model is established. The flexible loads are dispatched by LRC in the upper-level optimization model, the objective of which is minimizing the loss of the entire distribution network. The lower-level optimization is divided into two sub-optimal models, and they are carried out to minimize the operating costs of the AC/DC sub-network operators respectively. This two-level model avoids the difficulty of solving multi-objective optimization and can clarify the role of various stakeholders in the system scheduling. To solve the model effectively, a discrete wind-driven optimization (DWDO) algorithm is proposed. Then, considering the combination of the proposed DWDO algorithm and the YALMIP toolbox, a hierarchical optimization algorithm (HOA) is developed. The HOA can obtain the overall optimization result of the system through the iterative optimization of the upper and lower levels. Finally, the simulation results verify the effectiveness of the proposed scheduling scheme.

scholarly journals Optimal Placement of Electric Vehicle Charging Stations in the Active Distribution Network

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 68124-68134 ◽  
Author(s):  
Muhammad Zulqarnain Zeb ◽  
Kashif Imran ◽  
Abraiz Khattak ◽  
Abdul Kashif Janjua ◽  
Anamitra Pal ◽  
...  
Keyword(s):  
Electric Vehicle ◽  
Distribution Network ◽  
Optimal Placement ◽  
Active Distribution Network ◽  
Electric Vehicle Charging ◽  
Vehicle Charging ◽  
Charging Stations

scholarly journals The Optimal Placement and Sizing of Distributed Generation in an Active Distribution Network with Several Soft Open Points

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1084
Author(s):  
Eshan Karunarathne ◽  
Jagadeesh Pasupuleti ◽  
Janaka Ekanayake ◽  
Dilini Almeida
Keyword(s):  
Power Loss ◽  
Distribution Network ◽  
Research Work ◽  
Optimal Placement ◽  
Active Distribution Network ◽  
Distributed Generators ◽  
Power Loss Reduction ◽  
Passive Network ◽  
Integration Node

A competent methodology based on the active power loss reduction for optimal placement and sizing of distributed generators (DGs) in an active distribution network (ADN) with several soft open points (SOPs) is proposed. A series of SOP combinations are explored to generate different network structures and they are utilized in the optimization framework to identify the possible solutions with minimum power loss under normal network conditions. Furthermore, a generalized methodology to optimize the size and the location of a predefined number of DGs with a predefined number of SOPs is presented. A case study on the modified IEEE 33 bus system with three DGs and five SOPs was conducted and hence the overall network power loss and the voltage improvement were examined. The findings reveal that the system loss of the passive network without SOPs and DGs is reduced by 79.5% using three DGs and five SOPs. In addition, this research work introduces a framework using the DG size and the impedance to the DG integration node, to propose a region where the DGs can be optimally integrated into an ADN that includes several SOPs.

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