Reducing network congestion in distribution networks with high DG penetration via network reconfiguration

Bouhouras, Aggelos S.; Christoforidis, Georgios C.; Parisses, Constantinos; Labridis, Dimitris P.

doi:10.1109/eem.2014.6861255

Cited by 9 publications

(7 citation statements)

References 11 publications

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“…These types of DG sources must be carefully evaluated to determine, depending on the topology and location, the best possible together with other important factors such as installed capacity and their location on the grid. The latter is of vital importance since an inadequate location can contribute to the unwanted injection of active and reactive power flows that could increase energy losses in the system and generate overvoltages in the two near the DG, in addition to high costs without achieving the proposed objectives [ 33 , 34 , 35 ]. The DG offers great benefits in the efficiency, stability and reliability of the distribution systems, especially in radial grids that travel long distances in which a small increase in the load capacity can destabilize the system with high disturbances and voltage drops.…”

Section: Main Textmentioning

confidence: 99%

Optimal reactive power compensation in electrical distribution systems with distributed resources. Review

Téllez

López

Isaac

et al. 2018

Heliyon

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In this paper an exhaustive bibliographical revision of the mathematical methods used for the optimal selection and location of reactive power compensating elements is developed, the results obtained by different authors for different objective functions are analyzed and a scientific problem in the conflict that the electric variables show when analyzed individually is identified; thus demonstrating the need to analyze this problem in a multi-criteria way and taking into account topologies of distribution grids with distributed generation and energy storage. This research demonstrates that reactive power compensation in distribution grids with distributed resources is a problem that must be analyzed from multiple criteria that consider several objective functions to be optimized; thus achieving a global solution that contemplates an optimal location and dimensioning of reactive power compensating elements that contribute to the joint improvement of the voltage profiles, minimization of power losses, harmonic mitigation, increased line capacity, voltage stability and power factor improvement, all of them to a minimum investment cost. A theoretical heuristic is also proposed to solve the described problem, based on the multicriteria optimization method.

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Section: Main Textmentioning

confidence: 99%

Optimal reactive power compensation in electrical distribution systems with distributed resources. Review

Téllez

López

Isaac

et al. 2018

Heliyon

View full text Add to dashboard Cite

show abstract

“…Usually, each system operator manages it by applying their own guidelines and rules, and employing a certain physical or financial mechanism. In certain situations, it can be eased by cost-free methods such as the utilization of Flexible Alternating Current Transmission System (FACTS) devices [3], [4], [5], [6], the implementation of network reconfiguration [7], [8], [9], [10], [11], and transformer tap operation [12]. However, sometimes these methods are not effective and time consuming.…”

Section: Introductionmentioning

confidence: 99%

Modelling Demand Response to Alleviate Congestion in Active Power Market

2021

IJATCSE

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A new method of congestion management in deregulated and competitive power system based on a combination of Demand Response (DR) program and generation re-dispatch is proposed in this research. One of DR program called Emergency Demand Response Program (EDRP) is carried out through customer's willingness to participate in this program in order to reduce their consumption during congestion. EDRP is modeled based on demand elasticity of the load and considering incentives. Different level of demand elasticity values is introduced to the customers to observe their contribution in congestion relief. The proposed method is examined on IEEE 30 bus system by using the Optimal Power Flow tool and it indicates that by integrating the customer’s elasticity for EDRP can decrease the cost to relieve the congestion and lead more benefit for all participants. The obtained results are the cost to manage congestion problem and optimal re-dispatch of generators by involving the participation of customers in EDRP.

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“…In the case of high penetration of distributed energy resources, managing the congestion in active distribution networks can be divided into direct and indirect methods [6]. Direct methods include network reconfiguration [7], reactive power control [8] and active power control [9]. In network reconfiguration, section switches and contact switches are configured in the distribution network.…”

Section: Introductionmentioning

confidence: 99%

Distribution Network Congestion Dispatch Considering Time-Spatial Diversion of Electric Vehicles Charging

Sun

Yuan

Sun³

et al. 2018

Energies

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With the popularization of electric vehicles, free charging behaviors of electric vehicle owners can lead to uncertainty about charging in both time and space. A time-spatial dispatching strategy for the distribution network guided by electric vehicle charging fees is proposed in this paper, which aims to solve the network congestion problem caused by the unrestrained and free charging behaviors of large numbers of electric vehicles. In this strategy, congestion severity of different lines is analyzed and the relationship between the congested lines and the charging stations is clarified. A price elastic matrix is introduced to reflect the degree of owners’ response to the charging prices. A pricing scheme for optimal real-time charging fees for multiple charging stations is designed according to the congestion severity of the lines and the charging power of the related charging stations. Charging price at different charging station at different time is different, it can influence the charging behaviors of vehicle owners. The simulation results confirmed that the proposed congestion dispatching strategy considers the earnings of the operators, charging cost to the owners and the satisfaction of the owners. Moreover, the strategy can influence owners to make judicious charging plans that help to solve congestion problems in the network and improve the safety and economy of the power grid.

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Reducing network congestion in distribution networks with high DG penetration via network reconfiguration

Cited by 9 publications

References 11 publications

Optimal reactive power compensation in electrical distribution systems with distributed resources. Review

Optimal reactive power compensation in electrical distribution systems with distributed resources. Review

Modelling Demand Response to Alleviate Congestion in Active Power Market

Distribution Network Congestion Dispatch Considering Time-Spatial Diversion of Electric Vehicles Charging

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