Optimal capacitor placement in radial distribution systems using clustering based optimization

Vuletić, Jovica; Todorovski, Mirko

doi:10.1016/j.ijepes.2014.05.001

Cited by 36 publications

(13 citation statements)

References 22 publications

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“…To study the impact of multiple DSTATCOM allocation in RDS, the DSTATCOM model is incorporated in forward‐back sweep load flow algorithm . Basically, this algorithm has following steps: Backward sweep: In this step, the load current of each bus of a RDS having N number of buses is determined as follows:

{\overset{true¯}{S}}_{i} = {\overset{true¯}{V}}_{i} . {\overset{I}{true}}_{Load}^{*}_{i} .

…”

Section: Incorporation Of Dstatcom‐oai Model Into Forward‐backward Swmentioning

confidence: 99%

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Distribution STATCOM with optimal phase angle injection model for reactive power compensation of radial distribution networks

Sanam

Ganguly

Panda

2017

Int J Numerical Modelling

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In this paper, a distribution static compensator (DSTATCOM) model based on optimal angle injection is devised and used in reactive power compensation of radial distribution systems. In the proposed DSTATCOM model, the rating of the DSTATCOM is determined with the injection of optimal phase angle of the voltage at the location, in which a DSTATCOM is placed. The proposed DSTATCOM model is suitably incorporated in the forward‐backward sweep load flow algorithm. The optimal location and rating for DSTATCOM are determined by minimizing the active power loss of a distribution network. Differential evolution algorithm is used as the solution strategy. The 69‐bus radial distribution system is used in the case study. The results show that the proposed approach is more efficient in active power loss reduction as compared with some of the previously published approaches.

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{\overset{true¯}{S}}_{i} = {\overset{true¯}{V}}_{i} . {\overset{I}{true}}_{Load}^{*}_{i} .

…”

Section: Incorporation Of Dstatcom‐oai Model Into Forward‐backward Swmentioning

confidence: 99%

“…To study the impact of multiple DSTATCOM allocation in RDS, the DSTATCOM model is incorporated in forwardback sweep load flow algorithm. 17,18 Basically, this algorithm has following steps:…”

Section: Incorporation Of Dstatcom-oai Model Into Forward-backward mentioning

confidence: 99%

Distribution STATCOM with optimal phase angle injection model for reactive power compensation of radial distribution networks

Sanam

Ganguly

Panda

2017

Int J Numerical Modelling

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“…The ceasing condition is expressed as (  11) The total active power loss for the hth harmonic order is expressed as (26) where h is the harmonic order; h 0 is the minimum harmonic order; H is the maximum harmonics order;…”

Section: Harmonic Power Flowmentioning

confidence: 99%

A global harmony search algorithm for finding optimal capacitor location and size in distribution networks

Sirjani

Bade

2015

J. Cent. South Univ.

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Shunt capacitors are broadly applied in distribution systems to scale down power losses, improve voltage profile and boost system capacity. The amount of capacitors added and location of deployment in the system highly determine the advantage of compensation. A novel global harmony search (GHS) algorithm in parallel with the backward/ forward sweep power flow technique and radial harmonic power flow was used to investigate the optimal placement and sizing of capacitors in radial distribution networks for minimizing power loss and total cost by taking account load unbalancing, mutual coupling and harmonics. The optimal capacitor placement outcomes show that the GHS algorithm can reduce total power losses up to 60 kW and leads to more than 18% of cost saving. The results also demonstrate that the GHS algorithm is more effective in minimization of power loss and total costs compared with genetic algorithm (GA), particle swarm optimization (PSO) and harmony search (HS) algorithm. Moreover, the proposed algorithm converges within 800 iterations and is faster in terms of computational time and gives better performance in finding optimal capacitor location and size compared with other optimization techniques.

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“…Nevertheless, the reliance of the PSO algorithm on the altering factors and the trapping in modifying parameters' probability can reduce its accuracy and efficacy for various conditions. Other researches about reactive power placement, which employed AI procedures, are Bacterial Foreaging Optimization Algorithm (BFOA) (Devabalaji et al, 2015), artificial bee colony algorithm (ElFergany & Abdelaziz, 2014), search space of GA (Carpinelli et al, 2010), hybrid method of CODEQ (HCODEQ) (Chiou & Chang, 2015), teaching learning based optimization (Sultana & Roy, 2014), Gravitational Search Algorithm (GSA) (Shuaib et al, 2015), Clustering Based Optimization (CBO) (Vuletić & Todorovski, 2014) and bio-inspired optimization (Duque et al, 2015). The applications of AI in solving capacitor placement may have effectual operation and can handle complicated problems.…”

Section: Introductionmentioning

confidence: 99%

Analytical Method for Reactive Power Compensators Allocation

Arief¹,

Nappu²,

Antamil³

2018

IJTech

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This paper presents a novel analytical methodology to determine the placement of reactive power devices in power systems. The proposed method modifies the Modal analysis technique and, based on the inversed reduced Jacobian matrix, develops a new formulation to compute the Reactive Contribution Factor (RCF) of each load buses. The objective of this research is to achieve the most stable condition and to minimize network losses. The proposed method is implemented at the modified IEEE 30-bus Reliability Test System (RTS) and compared with a different placement. In order to assess the method, this work compares the voltage profile, eigenvalue and network losses. The simulation results show that the proposed method can provide a solution to the ideal shunt compensator placement by improving the system's voltage stability and by minimizing losses.

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Optimal capacitor placement in radial distribution systems using clustering based optimization

Cited by 36 publications

References 22 publications

Distribution STATCOM with optimal phase angle injection model for reactive power compensation of radial distribution networks

Distribution STATCOM with optimal phase angle injection model for reactive power compensation of radial distribution networks

A global harmony search algorithm for finding optimal capacitor location and size in distribution networks

Analytical Method for Reactive Power Compensators Allocation

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