Harmonic Evaluation of Active and Reactive Power Droop Control Strategies for Cascaded type Microgrid

Ravikant Sahu; Naveen Asati; Syed Uaid

doi:10.69968/ijisem.2026v5i313-27

Authors

Ravikant Sahu Research Scholar, Department of Electrical and Electronics Engineering, LNCT Group Bhopal
Naveen Asati HOD, Department of Electrical and Electronics Engineering, LNCT Group Bhopal
Syed Uaid Assistant Professor, Department of Electrical and Electronics Engineering, LNCT Group Bhopal

DOI:

https://doi.org/10.69968/ijisem.2026v5i313-27

Keywords:

Cascaded-type microgrid, droop control, power balance, MATLAB, SPWM and SVPWM

Abstract

Distributed generation units incorporating power electronics are becoming popular owing to their zero emission features. The most important elements to evaluate the successful use and flexibility of microgrids are the control as well as coordination of such generating units. The present report operates a space vector PWM technically controlled distribution unit linked to the series with steady power sharing. The synchronisation as well as power balancing of dispersed generating devices constitutes two major problems in cascaded-type microgrids that require immediate response. To that aim, in this research, an f-P/Q drop control is suggested and its stability is also examined. This suggested drop-control is capable of independently achieving power balance under resistive and resistive loads. The clear benefit in comparison to the reverse power factor drop control is to expand the field of application. Furthermore, simulation results verify the viability of the suggested approach. The technique ensures precise power sharing even when the connection is interrupted. Where the load varies during the interruption of communication, energy sharing accuracy is decreased, yet the suggested approach is better than the traditional drop control method. Furthermore, the accuracy of the power sharing base on the suggested approach is not affected by the communication channel time delay as well as local loads at inverter output. The control model was simulated in MATLAB using a series connection of two or three inverters. A comparison study is performed on THDs using SPWM and SVPWM methods in the output voltage. The active forces are also compared to improved power supply..

References

[1] R. N. Tejas and H. Vaikund, “Design and Control of PV Connected Microgrid,” vol. 10, no. 01, pp. 66–72, 2021.

[2] S. Masoud, A. Altbawi, A. Safawi, B. Mokhtar, and Z. Ahmad, “Enhacement of Microgrid Technologies using Various Algorithms,” vol. 12, no. 7, pp. 1127–1170, 2021.

[3] K. Sirviö, K. Kauhaniemi, A. A. Memon, and H. Laaksonen, “Functional Analysis of the Microgrid Concept Applied to Case Studies of the Sundom Smart Grid,” 2020.

[4] P. Srivani et al., “AN F-P / Q DROOPCONTROL IN CASCADED TYPE MICROGRID TO ACHIEVE POWER BALANCE UNDER BOTH RESISTIVE-INDUCTIVE AND RESISTIVE- CAPACITIVE LOADS AUTONOMOUSLY,” vol. 7, no. 16, pp. 2704–2712, 2020.

[5] N. S. S. M. Nurul Farhana Abdul Hamid, Muhammad Alleef Abd Jalil, “Design and simulation of single phase inverter using SPWM unipolar technique Design and simulation of single phase inverter using SPWM unipolar technique,” 2020, doi: 10.1088/1742-6596/1432/1/012021.

[6] A. W. N. Husna, M. A. Roslan, M. H. Mat, and A. Info, “Droop control technique for equal power sharing in islanded microgrid,” vol. 10, no. 1, pp. 530–537, 2019, doi: 10.11591/ijpeds.v10.i1.pp530-537.

[7] S. Tahir, J. Wang, M. H. Baloch, and G. S. Kaloi, “Digital Control Techniques Based on Voltage Source Inverters in Renewable Energy Applications : A Review,” 2018, doi: 10.3390/electronics7020018.

[8] N. K. Yadav, “Power Quality Improvement In Microgrid Using Different Control Techniques,” vol. 6, no. 2, pp. 79–83, 2018.

[9] A. Hirsch, Y. Parag, and J. Guerrero, “Microgrids : A review of technologies , key drivers , and outstanding issues,” Renew. Sustain. Energy Rev., vol. 90, no. March, pp. 402–411, 2018, doi: 10.1016/j.rser.2018.03.040.

[10] S. Haider, G. Li, and K. Wang, “A dual control strategy for power sharing improvement in islanded mode of AC microgrid,” 2018.

[11] M. S. Aspalli and A. Wamanrao, “Sinusoidal pulse width modulation (SPWM) with variable carrier synchronization for multilevel inverter controllers,” 2009 Int. Conf. Control Autom. Commun. Energy Conserv. INCACEC 2009, pp. 1–6, 2009.

[12] L. Kumar, “Design of PI Controller : A Multiobjective Optimization Approach,” pp. 833–838, 2014.

[13] A. Karthikeyan, M. Ieee, D. G. A. Krishna, A. Tejaswini, A. S. Panda, and L. P. R, “A Comparative Study of PI and PDF Controllers for DVR Under Distorted Grid Conditions,” 2018.

[14] K. Prabakar, “TRACE : Tennessee Research and Creative Exchange Gain tuning of proportional integral controller based on multiobjective optimization and controller hardware-in-loop microgrid setup,” 2015.

[15] A. S. A. Luiz and B. J. C. Filho, “Minimum reactive power filter design for high power three-level converters.,” IECON Proc. (Industrial Electron. Conf., pp. 3272–3277, 2008, doi: 10.1109/IECON.2008.4758484.

[16] M. Rivier, “A Literature Review of Microgrids : A functional layer based classification,” no. November 2018, 2016, doi: 10.1016/j.rser.2016.05.025.

[17] S. Mansour, M. I. Marei, and A. A. Sattar, “Droop based Control Strategy for a Microgrid,” vol. 16, no. 7, 2016.

[18] S. Firdoush, A. Raj, and S. K. Singh, “Reduction of Harmonics in Output Voltage of Inverter,” vol. 4, no. 02, pp. 1–6, 2016.

[19] L. R. Chintala, S. K. Peddapelli, and S. Malaji, “Improvement in Performance of Cascaded Multilevel Inverter Using Triangular and Trapezoidal Triangular Multi Carrier SVPWM,” pp. 562–570, 2016, doi: 10.15598/aeee.v14i5.1767.

[20] I. U. Nutkani, S. Member, P. C. Loh, and S. Member, “Decentralized Economic Dispatch Scheme With Online Power Reserve for Microgrids,” no. August, 2015, doi: 10.1109/TSG.2015.2451133.

[21] R. Mahalakshmi and K. C. S. Thampatty, “Grid Connected Multilevel Inverter for Renewable Energy Applications,” Procedia Technol., vol. 21, pp. 636–642, 2015, doi: 10.1016/j.protcy.2015.10.076.

[22] M. Kaliamoorthy, V. Rajasekaran, and G. Praveenraj, “A Novel Single Phase Cascaded Multilevel Inverter for Hybrid Renewable Energy Sources,” pp. 1–10, 2015.

[23] A. Vargas-mart, L. I. Minchala-avila, and L. E. Garza-casta, “A review of optimal control techniques applied to the energy management and control of microgrids,” vol. 52, no. Seit, pp. 780–787, 2015, doi: 10.1016/j.procs.2015.05.133.

[24] R. Jadeja, “An Investigation on the Performance of Random PWM Controlled Converters,” no. December, 2015, doi: 10.5281/zenodo.35430.

[25] R. Jadeja, “An Investigation on the Performance of Random PWM Controlled Converters,” vol. 5, no. 6, pp. 876–884, 2015.

[26] E. Hossain, E. Kabalci, R. Bayindir, and R. Perez, “A Comprehensive Study on Microgrid Technology,” vol. 4, no. 4, 2014.

[27] Y. Han, M. Xia, X. Hong, and M. Ye, “A smooth transition control strategy for microgrid operation modes,” Energy Procedia, vol. 61, pp. 760–766, 2014, doi: 10.1016/j.egypro.2014.11.960.

[28] P. R. K. Rao, P. Srinivas, and M. V. S. Kumar, “DESIGN AND ANALYSIS OF VARIOUS INVERTERS USING DIFFERENT PWM TECHNIQUES,” pp. 41–51, 2014.

[29] A. Omeiri, “A Study of New Techniques of Controlled PWM Inverters,” no. November, 2014.

[30] Z. Bin Ibrahim et al., “Simulation Investigation of SPWM , THIPWM and SVPWM Techniques for Three Phase Voltage Source Inverter,” vol. 4, no. 2, pp. 6–15, 2014.

[31] G. Chukka, S. Pinninti, and P. S. Venkatesh, “Modeling and Simulation of Microgrid Connected Renewable Energy Resources with MPPT Controller and by Using SVPWM Technique,” vol. 3, no. 1, pp. 455–462, 2014.

[32] X. Lu, S. Member, K. Sun, J. M. Guerrero, and S. Member, “State-of-Charge Balance Using Adaptive Droop Control for Distributed Energy Storage Systems in DC Microgrid Applications,” no. May 2014, 2013, doi: 10.1109/TIE.2013.2279374.

[33] L. Mariam, M. Basu, and M. F. Conlon, “A Review of Existing Microgrid Architectures,” vol. 2013, 2013.

[34] S. N. Bhaskara, S. Member, B. H. Chowdhury, and S. Member, “Microgrids – A Review of Modeling , Control , Protection , Simulation and Future Potential,” pp. 1–7, 2012.

[35] C. R. Balamurugan, “Comparative Study on Carrier Overlapping PWM Strategies for Three Phase Five Level Cascaded Inverter,” vol. 48, no. 6, pp. 20–28, 2012.