Penentuan Kapasitas dan Lokasi Optimal dari Pembangkit Tersebar pada Jaringan Distribusi Penyulang Nila di Gardu Induk Metro

Awansah ST, Osea Zebua, Herri Gusmedi

Abstract


Installation of distributed generation (DG) is one alternatives to reduce power loss in distribution network. However, the placement of DG with non-optimal capacity and location may affect the voltage profile and voltage stability. This paper aims to find the optimal capacity and location of DG in order to reduce active power losses and improve the voltage profile and the voltage stability index. The simulation is performed by installing a DG on distribution network case studies i.e. IEEE 30 bus system and on the Nila feeder of Metro substation. Two types of DG are used for this simulation, i.e. DG that only produce active power and DG that produce both active and reactive power. Power flow calculations are performed using the forward/backward sweep method and all programming is written using MATLAB software. Simulation results show that the method can obtain the optimal capacity and location of DG. After installation the DGs,  power losses, voltage profile and voltage stability index on each bus in Nila feeder have improved.

 

Keywords : Distributed generation,optimal capacity and location, distribution network, power loss minimization

Abstrak

Penempatan pembangkit tersebar (DG) merupakan salah satu alternatif untuk mengurangi rugi-rugi daya pada jaringan distribusi. Namun penempatan DG dengan kapasitas dan lokasi yang tidak optimal dapat mempengaruhi profil tegangan dan stabilitas tegangan. Makalah ini bertujuan untuk menentukan kapasitas dan lokasi yang optimal dari DG untuk mengurangi rugi-rugi daya aktif dan memperbaiki profil tegangan serta indeks stabilitas tegangan. Simulasi dilakukan dengan menempatkan satu DG pada sistem IEEE 30 bus dan pada penyulang Nila di gardu induk Metro sebagai studi kasus jaringan distribusi. Dua tipe DG digunakan dalam simulasi ini, yakni DG yang hanya menyuplai daya aktif saja dan DG yang dapat menyuplai daya aktif dan reaktif. Perhitungan aliran daya dilakukan dengan menggunakan metode forward/backward sweep dan semua program ditulis dengan menggunakan perangkat lunak MATLAB. Hasil simulasi menunjukkan bahwa metode yang digunakan dapat menentukan kapasitas dan lokasi optimal dari masing-masing jenis DG untuk mengurangi rugi-rugi daya aktif secara optimal dan memperbaiki profil tegangan dan indeks stabilitas tegangan pada setiap bus di penyulang Nila.

 

Kata Kunci : Pembangkit tersebar, kapasitas dan lokasi optimal, jaringan distribusi, minimisasi rugi-rugi daya


References


E. Fitrianto dan R. Nazir, "Efek Pengintegrasian Pembangkit Listrik Tersebar Pada Jaringan Distribusi Radial Terhadap Perosotan Tegangan," Jurnal Nasional Teknik Elektro, vol.5, no.1, Maret 2016

Syafii, et al, "Analisa Pengaruh Integrasi Pembangkit Tersebar Dalam Sistem Komposit," Jurnal Nasional Teknik Elektro, vol.3, no.1, Maret 2014.

S. Yunus dan I. Ismail, "Studi Penempatan dan Kapasitas Pembangkit Tersebar Terhadap Profil Tegangan dan Rugi Saluran Pada Saluran Marapalam," Jurnal Nasional Teknik Elektro, vol.7, no.1, Maret 2018.

K. Mahesh, et al., "Advanced Pareto Front Non-Dominated Sorting Multi-Objective Particle Swarm Optimization for Optimal Placement and Sizing of Distributed Generation," Energies, vol. 9, no. 982, 2016.

N. Mohandas, et al, "Optimal Location and Sizing of Real Power DG Units to Improve the Voltage Stability in the Distribution System Using ABC Algorithm United with Chaos," Electrical Power and Energy Systems, vol.66, pp.41-52, 2015.

A.M. Imran and M. Kowsalya, "Optimal Size and Sitting of Multiple Distributed Generators in Distribution Systems Using Bacterial Foraging Optimization," Swarm Evolutionary Computations, vol.15, pp. 58-65, 2014.

D.Q. Hung, et al, "Analytical Expressions for DG Allocation in Primary Distribution Networks," IEEE Transactions on Energy Conversion, vol. 25, no. 3, September 2010.

M.A. Kashem, et al, "A Novel Method for Loss Minimization in Distribution Networks," Proceeding International Conference Electrical Utility Deregulation Restructure Power Technology, Apr. 2000, pp.251-256.

D. B. Santoso, et al, "Algoritma Aliran Daya dengan Metode Backward/Forward Sweep pada Sistem Distribusi Radial," CITEE 2017, hal. 78-82.

S. Kansal, et al, "Optimal Placement of Different Types of DG Sources in Distribution Networks," International Journal of Electrical and Power Energy Systems, vol.53, pp.752-760, 2013.

M. Chakravorty and D. Das, "Voltage Stability Analysis of Radial Distribution Networks," Electrical Power and Energy Systems, vol.23, pp.129-135, 2001.




DOI: https://doi.org/10.25077/jnte.v7n3.553.2018

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.

JNTE index by:

  

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Statistic and Traffic