Optimal reconfiguration of distribution networks for power loss reduction

2002 ◽  
Author(s):  
E.R. Ramos ◽  
J.L. Martinez-Ramos ◽  
A.G. Exposito ◽  
A.J.U. Salado
Keyword(s):  
Power Loss ◽  
Distribution Networks ◽  
Loss Reduction ◽  
Power Loss Reduction ◽  
Optimal Reconfiguration

scholarly journals Optimal Placement and Optimal Combination of DTC, STATCOM and Line Reconfiguration to Minimize the Power Loss in Distribution Networks

2019 ◽  
Vol 8 (4) ◽  
pp. 11631-11636 ◽  
Keyword(s):  
Power Loss ◽  
Renewable Energy Sources ◽  
Distribution Networks ◽  
Optimal Combination ◽  
Optimal Placement ◽  
Loss Reduction ◽  
Power Loss Reduction ◽  
Network Operation ◽  
Time Variables ◽  
Simulation Package

Due to deregulation, exponential growth in the electricity demand, integration of renewable energy sources, lack of analytical computing facility and expansion of network increases the complexity with poor operation of the network. Existing analytical computing facility is failed to give efficient and accurate results for secure operation of the distribution network. Many researchers are working to give potential solution to improve the performance of network operation considering the real time variables. In this paper minimization of power loss is chosen as objective function. Considering the network parameters the optimal placements with different combination of DTC, STATCOM and line reconfiguration are tested on IEEE-15 bus system using MiPower simulation package. The obtained result shows more than 50% power loss reduction, which leads to efficient and stress free operation of the distribution networks.

Optimal Configuration and Reconfiguration of Electric Distribution Networks

2011 ◽  
pp. 268-292
Author(s):  
Armin Ebrahimi Milani ◽  
Mahmood Reza Haghifam
Keyword(s):  
Power Loss ◽  
Optimization Procedure ◽  
Distribution Networks ◽  
Time Varying ◽  
High Quality ◽  
Sample Distribution ◽  
Power Loss Reduction ◽  
The Status ◽  
Optimal Reconfiguration ◽  
Practical Scheme

Power loss reduction can be considered as one of the main purposes for a distribution system’s designers and operators, especially for recent non-governmental networks. Moreover, the nature of power loss challenges different methods to solve this problem, while various studies indicate effectiveness of reconfiguration and its high portion for this case. Thus, “reconfiguration” can be introduced as an optimization procedure to obtain economical high quality operation by changing the status of sectionalizing switches in these networks. Some major points such as using different switch types, considering number of switching and time varying loads, which are almost neglected or not applied simultaneously in most pervious essays, are the main motivation to propose this chapter. A heuristic practical scheme is proposed to perform optimal reconfiguration, and all previous neglected topics are fully discussed. Proposed method will apply to sample distribution networks, and the effectiveness of this method will be discussed through several case studies and comparisons.

scholarly journals A Hybrid Optimization Approach for Power Loss Reduction and DG Penetration Level Increment in Electrical Distribution Network

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 6008
Author(s):  
Teketay Mulu Beza ◽  
Yen-Chih Huang ◽  
Cheng-Chien Kuo
Keyword(s):  
Power Loss ◽  
Distribution Network ◽  
Distribution Networks ◽  
Test System ◽  
Base Case ◽  
Optimization Approach ◽  
Loss Reduction ◽  
Voltage Profile ◽  
Electrical Distribution ◽  
Power Loss Reduction

The electrical distribution system has experienced a number of important changes due to the integration of distributed and renewable energy resources. Optimal integration of distributed generators (DGs) and distribution network reconfiguration (DNR) of the radial network have significant impacts on the power system. The main aim of this study is to optimize the power loss reduction and DG penetration level increment while keeping the voltage profile improvements with in the permissible limit. To do so, a hybrid of analytical approach and particle swarm optimization (PSO) are proposed. The proposed approach was tested on 33-bus and 69-bus distribution networks, and significant improvements in power loss reduction, DG penetration increment, and voltage profile were achieved. Compared with the base case scenario, power loss was reduced by 89.76% and the DG penetration level was increased by 81.59% in the 69-bus test system. Similarly, a power loss reduction of 82.13% and DG penetration level increment of 80.55% was attained for the 33-bus test system. The simulation results obtained are compared with other methods published in the literature.

scholarly journals Optimal Placement and Sizing of Capacitors in Radial Distribution Systems: A Two-Stage Method

2020 ◽  
pp. 31-43
Author(s):  
Sunday Adeleke Salimon ◽  
Abiodun Aderemi Baruwa ◽  
Saheed Oluwasina Amuda ◽  
Hafiz Adesupo Adeleke
Keyword(s):  
Radial Distribution ◽  
Power Loss ◽  
Reactive Power ◽  
Distribution Networks ◽  
Loss Reduction ◽  
Two Stage ◽  
Second Stage ◽  
Power Loss Reduction ◽  
Radial Distribution Networks ◽  
Shunt Capacitors

Optimal allocation of shunt capacitors in the radial distribution networks results in both technical and economic benefits. This paper presents a two-stage method of Loss Sensitivity Factor (LSF) and Cuckoo Search Algorithm (CSA) to find the optimal size and location of shunt capacitors with the objective of minimizing cost due to power loss and reactive power compensation of the distribution networks. The first stage utilizes the LSF to predict the potential candidate buses for shunt capacitor placement thereby reducing the search space of the second stage and avoiding unnecessary repetitive load flow while the second stage uses the CSA to find the size and actual placement of the shunt capacitors satisfying the operating constraints. The applicability of the proposed two stage method is tested on the standard IEEE 33-bus and Ayepe 34-bus Nigerian radial distribution networks of the Ibadan Electricity Distribution Company. After running the algorithm, the simulation results gave percentage real and reactive power loss reduction of 34.28% and 28.94% as compared to the base case for the IEEE 33-bus system while the percentage real and reactive power loss reduction of 22.89% and 21.40% was recorded for the Ayepe 34-bus system. Comparison of the obtained results with other techniques in literatures for the standardized IEEE 33-bus reveals the efficiency of the proposed method as it achieved technical benefits of reduced total power loss, improved voltage profile and bus voltage stability, and the economic benefit of reduced total cost due to electrical power loss and compensation.

Design and Application of Decision Support System for Power Loss Reduction of Rural Power Network

2012 ◽  
Vol 241-244 ◽  
pp. 682-686 ◽  
Author(s):  
Bing Xia Chen ◽  
Jian Cheng Tan
Keyword(s):  
Power Loss ◽  
High Efficiency ◽  
Reactive Power ◽  
Distribution Networks ◽  
Loss Reduction ◽  
Power Network ◽  
Loss Calculation ◽  
Power Loss Reduction ◽  
Theoretical Line ◽  
Line Loss

Theoretical line loss calculation is the basis of line loss analysis and decision-making in loss reduction. Due to technical constraints in the past, traditional theoretical line loss calculation method uses a large number of simplified calculations. This paper proposes a new online method of line loss calculation in distribution networks which is based on PQU (active power, reactive power and voltage) load curves. The proposed method has a large amount of data operation and thus can accurately reflect the load variation with time. Based on a new kind of metrical equipment and the proposed method, the assistant decision system for comprehensive power loss reduction of rural power network has been developed and has been tested on several rural power networks. The results show its convenience, accurate calculation and high efficiency.

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