Voltage Sag Assessment and Mitigation Techniques of a Solar PV Integrated 110 kV/13.8 kV Saudi Substation


  •   Abdullah Saeed Al-Qarni

  •   Sreerama Kumar Ramdas


The point of common coupling of a photovoltaic energy conversion system (PVES) to the utility grid is the most critical interface point where voltage sag issues arise. This paper involves a comparative evaluation of Dynamic Voltage Restorer (DVR) and Distribution Static Compensator (D-STATCOM) in mitigating the voltage sag at the point of common coupling of a photovoltaic energy conversion system integrated onto AC auxiliary distribution system in a 110 kV/13.8 kV transmission substation in the national power grid in Saudi Arabia. The voltage sag due to a three-phase short circuit at the point of common coupling of the photovoltaic system with the AC auxiliary distribution system is investigated. The results indicate that the DVR is better than the D-STATCOM in mitigating the voltage sag issue.

Keywords: Photovoltaic Systems, PSCAD Program, Transmission Substation, Voltage Sag.


IEEE. 1346-1998-IEEE Recommended Practice for Evaluating Electric Power System Compatibility With Electronic Process Equipment. IEEE, 1997: 1-45.

Merkle M, Miri A. Detailed Dynamic Modelling of a 50 MVAr-STATCOM via Network Simulations in Time Domain. Journal of Electrical Engineering [Online], 2002: 1-6.

Zhang XP, Rehtanz C, Pal B. Flexible AC Transmission Systems: Modelling and Control. New York, United States: Springer Publishing; 2012.

Khalifa AS, El-Saadany EF. Control of three phase grid-connected photovoltaic arrays with open loop maximum power point tracking. 2011 IEEE Power and Energy Society General Meeting, 2011: 1-8. https://doi.org/10.1109/pes.2011.6039163.

Junbiao Han, Khushalani-Solanki S, Solanki J, Schoene J. Study of unified control of STATCOM to resolve the Power quality issues of a grid-connected three phase PV system. 2012 IEEE PES Innovative Smart Grid Technologies (ISGT), 2012: 1-7. https://doi.org/10.1109/isgt.2012.6175773.

Mosobi RW, Chichi T, Gao S. Modeling and power quality analysis of integrated renewable energy system. 2014 Eighteenth National Power Systems Conference (NPSC), 2014: 1-6. https://doi.org/10.1109/npsc.2014.7103806.

Kow KW, Wan WY, Rajkumar RK. Power Quality Analysis for PV Grid Connected System Using PSCAD/EMTDC. International Journal of Renewable Energy Research, 2015; 5(1): 121-132.

Ramya G, Ganapathy V, Suresh P. Power Quality Improvement Using Multi-Level Inverter based DVR and DSTATCOM Using Neuro-fuzzy Controller. International Journal of Power Electronics and Drive Systems (IJPEDS), 2017; 8(1): 316. https://doi.org/10.11591/ijpeds.v8.i1.pp316-324.

Al-Shetwi AQ, Hannan MA, Jern KP, Alkahtani AA, PG Abas AE. Power Quality Assessment of Grid-Connected PV System in Compliance with the Recent Integration Requirements. Electronics, 2020; 9(2): 366. https://doi.org/10.3390/electronics9020366.

Al-Mathnani AO, Lesewed A, Rasim AA, Ali Alashi J. Control and Design 6-Pulse STATCOM Using Novel 2-Vector Closed Loop Control Algorithm. 2022 IEEE 2nd International Maghreb Meeting of the Conference on Sciences and Techniques of Automatic Control and Computer Engineering (MI-STA). 2022: 167-170. https://doi.org/10.1109/mi-sta54861.2022.9837647.


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How to Cite
Al-Qarni, A.S. and Ramdas, S.K. 2022. Voltage Sag Assessment and Mitigation Techniques of a Solar PV Integrated 110 kV/13.8 kV Saudi Substation. European Journal of Engineering and Technology Research. 7, 6 (Nov. 2022), 56–63. DOI:https://doi.org/10.24018/ejeng.2022.7.6.2902.