A Framework for Optimal Operation of Overcurrent Relays in Microgrids Using a Modified Tripping Formulation

Farhadi Koutenaei, Reza; Nazari, AmirAli; Keypour, Reza

doi:10.22075/mseee.2021.23261.1059

A Framework for Optimal Operation of Overcurrent Relays in Microgrids Using a Modified Tripping Formulation

Document Type : Research Article

Authors

Reza Farhadi Koutenaei ¹

AmirAli Nazari ²

Reza Keypour ²

¹ Managing Director of Protection Office, Radin Sanat Co. Qaemshahr, Iran

² Faculty of Electrical and Computer Engineering, Semnan University, Semnan, Iran

10.22075/mseee.2021.23261.1059

Abstract

This paper presents a method which is capable of satisfying the optimal protection coordination of relays in Microgrids (MGs) in both islanded and grid-connected modes. While the tripping times are minimized, the requirement of having multiple setting groups for relays is alleviated. Non-linear constrained programming is formulated in firefly algorithm (FA) and static penalties are considered for constraints handling. The goal is to obtain the optimal coordination between the directional overcurrent relays (OCRs). The formulation includes a framework to satisfy coordination constraints for both connectivity modes of MG operation and yield the least tripping times, while maintaining an appropriate time interval between the primary and the backup relays. A 9-bus IEEE test system is simulated as the MG in DIgSILENT software and the achieved results are compared with a similar study where the genetic algorithm has been applied for optimization. The comparative results verify the capability of the current method and its superiority.

Keywords

Microgrid

Firefly Algorithm

Distributed generation

Directional over current relays

Short circuit fault

Subjects

Power System

Najy, W. K., Zeineldin, H. H., & Woon, W. L. (2013). Optimal protection coordination for microgrids with grid-connected and islanded capability. IEEE Transactions on industrial electronics, 60(4), 1668-1677.
Kida, A. A., Rivas, A. E. L., & Gallego, L. A. (2020). An improved simulated annealing–linear programming hybrid algorithm applied to the optimal coordination of directional overcurrent relays. Electric Power Systems Research, 181, 106197.
Sadeghi, M. H., Dastfan, A., & Damchi, Y. (2021). Optimal coordination of directional overcurrent relays in distribution systems with DGs and FCLs considering voltage sag energy index. Electric Power Systems Research, 191, 106884.
Hussain, B., Sharkh, S. M., & Hussain, S (2010). Impact studies of distributed generation on power quality and protection setup of an existing distribution network. In Power Electronics Electrical Drives Automation and Motion (SPEEDAM).
Darabi, A., Bagheri, M., & Gharehpetian, G. B. (2020). Highly sensitive microgrid protection using overcurrent relays with a novel relay characteristic. IET Renewable Power Generation, 14(7), 1201-1209.
Zamani, M.A., T.S. Sidhu and A. Yazdani, 2011. “A protection strategy and microprocessor-based relay for low-voltage microgrids.” IEEE Transactions Power Delivery, 26: 1873-1883.
IEEE 1547 test for interconnecting distributed resources with electric power systems. http://grouper.ieee.org/groups/scc21/1547/1547_index.html.
Haron, A. R., Mohamed, A., & Shareef, H. (2012). A review on protection schemes and coordination techniques in microgrid system. Journal of Applied Sciences, 12(2), 101-112.
Jenkins, N., Wu, X., Jayawarna, N., Zhang, Y., & Lopes, J. P. (2005). Protection guidelines for a microgrid. CORDIS., 1-370.
Jenkins, N. (1995). Embedded generation. Power Engineering Journal, 9(3), 145-150.
Hussain, B., Sharkh, S. M., Hussain, S., & Abusara, M. A. (2010). Integration of distributed generation into the grid: Protection challenges and solutions.
Irfan, M., Wadood, A., Khurshaid, T., Khan, B. M., Kim, K. C., Oh, S. R., & Rhee, S. B. (2021). An Optimized Adaptive Protection Scheme for Numerical and Directional Overcurrent Relay Coordination Using Harris Hawk Optimization. Energies, 14(18), 5603.
Damchi, Y., Dolatabadi, M., Mashhadi, H. R., & Sadeh, J. (2018). MILP approach for optimal coordination of directional overcurrent relays in interconnected power systems. Electric Power Systems Research, 158, 267-274.
Zeineldin, H. M., Sharaf, H. H., & El-Saadany, E. (2016). Protection coordination for microgrids with grid-connected and islanded capabilities using dual setting directional overcurrent relays. IEEE Transactions on Smart Grid.
Yazdaninejadi, A., Golshannavaz, S., Nazarpour, D., Teimourzadeh, S., & Aminifar, F. (2018). Dual-setting directional overcurrent relays for protecting automated distribution networks. IEEE Transactions on Industrial Informatics, 15(2), 730-740.
Dehghanpour, E., Karegar, H., Kheirollahi, R., & Soleymani, T. (2016). Optimal Coordination of Directional Overcurrent Relays in Microgrids by Using Cuckoo-Linear Optimization Algorithm and Fault Current Limiter. IEEE Transactions on Smart Grid.
Dewadasa, M., Ghosh, A., & Ledwich, G. (2011). Protection of microgrids using differential relays. In Power Engineering Conference (AUPEC), 2011 21st Australasian Universities (pp. 1-6).
Oudalov, A., & Fidigatti, A. (2009). Adaptive network protection in microgrids. International Journal of Distributed Energy Resources, 5(3), 201-226.
Ustun, T. S., & Khan, R. H. (2015). Multiterminal hybrid protection of microgrids over wireless communications network. IEEE Transactions on Smart Grid, 6(5), 2493-2500.
Kar, S., Samantaray, S. R., & Zadeh, M. D. (2015). Data-mining model based intelligent differential microgrid protection scheme. IEEE Systems Journal.
Casagrande, E., Woon, W. L., Zeineldin, H. H., & Svetinovic, D. (2014). A differential sequence component protection scheme for microgrids with inverter-based distributed generators. IEEE Transactions on smart grid, 5(1), 29-37.
Nazari, A., & Keypour, R. (2019). A cooperative expansion program for Disco and independent microgrids based on a bargaining framework. Sustainable Energy, Grids and Networks, 20, 100278.
Lim, S. T., & Lim, S. H. (2020). Analysis on protective coordination between over-current relays with voltage component in a power distribution system with SFCL. IEEE
Transactions on Applied Superconductivity, 30(4), 1-6.
Wu, J., Wang, Y. G., Burrage, K., Tian, Y. C., Lawson, B., & Ding, Z. (2020). An improved firefly algorithm for global continuous optimization problems. Expert Systems with Applications, 149, 113340.
Singh, P., & Pradhan, A. K. (2020). A Local measurement based protection technique for distribution system with photovoltaic plants. IET Renewable Power Generation, 14(6), 996-1003.