Abstract
The applications of grey wolf (GWO), dragonfly (DFO) and moth–flame (MFA) optimization techniques for optimum sitting of capacitors in various radial distribution systems (RDSs) are presented. The loss sensitivity factor is applied to determine the most candidate buses. Then, each optimization technique is utilized to find optimum placements and sizes of capacitors for determined Buses. In this study, 33-, 69- and 118-bus RDSs are considered for validating the effectiveness and efficiency of studied algorithms. The convergence performance is evaluated for tested RDSs using MATLAB/Simulink software. The obtained results confirm that GWO, DFO and MFA offer accurate convergence to the global minimum point of the objective function with high convergence speed. The ability of the studied techniques for enhancing voltage profiles with considered distribution systems is achieved. Finally, a comparison study between each studied technique with each other and with other techniques like PSO, fuzzy-GA, heuristic, DSA, TLBO, DA-PS, FPA and CSA has been carried out. The parameters of the comparison include: efficiency, execution time, the speed of convergence, minimizing total cost and increasing net savings. The results of comparison indicated that GWO-based algorithm has accurate convergence to optimal location and size of capacitor banks. In addition, it has the best performance in comparison with other techniques.
Similar content being viewed by others
Abbreviations
- \({\text{Cost}}\_{\text{fun}}\) :
-
Objective function
- \(P_{\text{Loss}}^{T}\) :
-
Power loss
- J :
-
Number of candidate buses
- \(P_{{{\text{eff}}\left( j \right)}}\) :
-
Total effective active power
- LSF:
-
Loss sensitivity factors
- \({\text{PF}}_{\text{overall}}\) :
-
Overall power factor
- \(Q_{\text{Load}}^{T}\) :
-
Total load reactive power
- N :
-
Number of lines
- \(K_{\text{p}}\) :
-
Equivalent cost/unit of power loss
- \(K_{j}^{\text{c}}\) :
-
Annual capacitor cost in ($/kW-year)
- \(Q_{j}^{\text{c}}\) :
-
Shunt capacitor size
- \(Q_{{{\text{eff}}\left( j \right)}}\) :
-
Total effective reactive power
- VSF:
-
Voltage sensitivity factor
- S :
-
Apparent power
- \(Q_{c}^{\hbox{max} }\) :
-
Maximum capacitor size
- \(R + jX\) :
-
Impedance
References
Abdelaziz AY, Ali ES, Abd Elazim SM (2016) Flower Pollination Algorithm and Loss Sensitivity Factors for optimal sizing and placement of capacitors in radial distribution systems. Electr Power Energy Syst 78:207–214
Ali ES, Abd Elazim SM, Abdelaziz AY (2016a) Improved harmony algorithm and power loss index for optimal locations and sizing of capacitors in radial distribution systems. Int J Electr Power Energy Syst 80C:252–263
Ali ES, Abd Elazim SM, Abdelaziz AY (2016b) Improved Harmony Algorithm for optimal locations and sizing of capacitors in radial distribution systems. Int J Electr Power Energy Syst 79C:275–284
Aman MM, Jasmon GB, Bakar AHA, Mokhlis H, Karimi M (2014) Optimum shunt capacitor placement in distribution system—a review and comparative study. Renew Sustain Energy Rev 30:429–439
Baran ME, Wu FF (1989a) Network reconfiguration in distribution systems for loss reduction and load balancing. IEEE Trans Power Deliv 4:1401–1407
Baran ME, Wu FF (1989b) Optimal capacitor placement on radial distribution systems. IEEE Trans Power Deliv 4(1):725–734
Das D (2008) Optimal placement of capacitors in radial distribution system using a fuzzy-GA method. Int J Electr Power Energy Syst 30(6–7):361–367
Devabalaji KR, Yuvaraj T, Ravi K (2016) An efficient method for solving the optimal sitting and sizing problem of capacitor banks based on cuckoo search algorithm. Ain Shams Eng J. https://doi.org/10.1016/j.asej.2016.04.005. ISSN 2090-4479
Devabalaji KR, Yuvaraj T, Ravi K (2016b) An efficient method for solving the optimal sitting and sizing problem of capacitor banks based on cuckoo search algorithm. Ain Shams Eng J. https://doi.org/10.1016/j.asej.2016.04.005
Diab AAZ, Tulsky VN, Tolba MA (2016) Optimal shunt capacitors sittings and sizing in radial distribution systems using a novel hybrid optimization algorithm. In: IEEE Conference, Proceedings of MEPCON’2016, 27–29 December, Helwan University, Egypt. https://doi.org/10.1109/mepcon.2016.7836929
Elfergany AA (2013) Optimal capacitor allocations using evolutionary algorithms. IET Proc Gener Transm Distrib 7(6):593–601
El-Fergany AA, Abdelaziz AY (2013) Capacitor allocations in radial distribution networks using cuckoo search algorithm. IET Gener Transm Distrib 8(2):223–232. https://doi.org/10.1049/ietgtd.2013.0290
El-Fergany AA, Abdelaziz AY (2014) Artificial bee colony algorithm to allocate fixed and switched static shunt capacitors in radial distribution networks. Electr Power Compon Syst 42(5):427–438. https://doi.org/10.1080/15325008.2013.856965
Hamouda A, Lakehal N, Zaher K (2010) Heuristic method for reactive energy management in distribution feeders. Int J Energy Convers Manag 51(3):518–523. https://doi.org/10.1016/j.enconman.2009.10.016
Kalambe S, Agnihotri G (2014) Loss minimization techniques used in distribution network: bibliographical survey. Renew Sustain Energy Rev 29:184–200
Mirjalili S (2015) Moth-flame optimization algorithm: a novel nature-inspired heuristic paradigm. Knowl-Based Syst 89:228–249
Mirjalili S (2016) Dragonfly algorithm: a new meta-heuristic optimization technique for solving single-objective, discrete and multi-objective problems. Neural Comput Appl 27(4):1053–1073. https://doi.org/10.1007/s00521-015-1920-1
Mirjalili S, Mirjalili SM, Lewis A (2014) Grey wolf optimizer. Adv Eng Softw 69:46–61
Muro C, Escobedo R, Spector L, Coppinger RP (2011) Wolf-pack (Canis lupus) hunting strategies emerge from simple rules in computational simulations. Behav Proc 88(3):192–197. https://doi.org/10.1016/j.beproc.2011.09.006
Prakash DB, Lakshminarayana C (2016a) Optimal siting of capacitors in radial distribution network using Whale Optimization Algorithm. Alex Eng J. https://doi.org/10.1016/j.aej.2016.10.002
Prakash DB, Lakshminarayana C (2016b) Multiple DG placements in distribution system for power loss reduction using PSO algorithm. Procedia Technol 25:785–792
Prakash K, Sydulu M (2007) Particle swarm optimization based capacitor placement on radial distribution systems. In: IEEE power engineering society general meeting, pp 1–5, 24–28 June 2007
Raju MR, Ramachandra Murthy KVS, Ravindera K (2012) Direct search algorithm for capacitive compansation in radial distribution systems. Int J Electr Power Energy Syst 42(1):24–30
Sarma AK, Rafi KM (2011) Optimal selection of capacitors for radial distribution systems using plant growth simulation algorithm. Int J Adv Sci Technol 30:43–53
Savier JS, Das D (2012) An exact method for loss allocation in radial distribution systems. Int J Electr Power Energy Syst 36:100–106
Shuiab YM, Kalavathi MS, Rajan CC (2015) Optimal capacitor placement in radial distribution system using gravitational search algorithm. Electr Power Energy Syst 64:384–397
Su C-T, Tsai C-C (1996) A new fuzzy-reasoning approach to optimum capacitor allocation for primary distribution systems. In: Proceedings of the IEEE international conference on industrial technology, pp 237–241
Sultana S, Roy PK (2014a) Optimal capacitor placement in radial distribution systems using teaching learning based optimization. Int J Electr Power Energy Syst 54:387–398
Sultana S, Roy PK (2014b) Optimal capacitor placement in radial distribution systems using teaching learning based optimization. Electr Power Energy Syst 54:387–398
Swarup KS (2005) Genetic algorithm for optimal capacitor allocation in radial distribution systems. In: Proceedings of the 6th WSEAS international conference on evolutionary, Lisbon, Portugal, pp 152–159, June 16–18, 2005
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Diab, A.A.Z., Rezk, H. Optimal Sizing and Placement of Capacitors in Radial Distribution Systems Based on Grey Wolf, Dragonfly and Moth–Flame Optimization Algorithms. Iran J Sci Technol Trans Electr Eng 43, 77–96 (2019). https://doi.org/10.1007/s40998-018-0071-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40998-018-0071-7