Performance Evaluation of Three-Phase Grid-Connected Inverter with Various Control Methods

Abstract

Grid-tied inverters play an essential role in the power systems that are widely used to benefit from these energy systems. A filter is used between the inverter and the grid to suppress the harmonics of the current generated from the inverters. Various feedback strategies have been reported to regulate the dynamics of grid-connected systems. In this study, different control strategies are investigated to analyze the performance of the grid -connected inverter equipped with an LCL filter. The traditional proportional-integral-derivate (PID) controller, siding mode control (SMC), and model predictive control (MPC) is considered to perform the comparison work. The simulation works are conducted using MATLAB, and simulation works verify theoretical concepts.

Keywords

• PID control
• Sliding mode control
• Model predictive control
• grid-tide inverter

References

1. D. M. C. Milbradt, G. V. Hollweg, P. J. D. de Oliveira Evald, W. B. da Silveira, and H. A. Gründling, “A robust adaptive One Sample Ahead Preview controller for grid-injected currents of a grid-tied power converter with an LCL filter,” Int. J. Electr. Power Energy Syst., vol. 142, no. May, 2022, doi: 10.1016/j.ijepes.2022.108286.
2. D. Sgrò, S. A. Souza, F. L. Tofoli, R. P. S. Leão, and A. K. R. Sombra, “An integrated design approach of LCL filters based on nonlinear inductors for grid-connected inverter applications,” Electr. Power Syst. Res., vol. 186, no. May, p. 106389, 2020, doi: 10.1016/j.epsr.2020.106389.
3. X. Q. Guo, W. Y. Wu, and H. R. Gu, “Modeling and simulation of direct output current control for LCL-interfaced grid-connected inverters with parallel passive damping,” Simul. Model. Pract. Theory, vol. 18, no. 7, pp. 946–956, 2010, doi: 10.1016/j.simpat.2010.02.010.
4. C. C. Gomes, A. F. Cupertino, and H. A. Pereira, “Damping techniques for grid-connected voltage source converters based on LCL filter: An overview,” Renew. Sustain. Energy Rev., vol. 81, no. 2018, pp. 116–135, 2018, doi: 10.1016/j.rser.2017.07.050.
5. C. Gurrola-Corral, J. Segundo, M. Esparza, and R. Cruz, “Optimal LCL-filter design method for grid-connected renewable energy sources,” Int. J. Electr. Power Energy Syst., vol. 120, no. 2020, pp. 1–14, 2020, doi: 10.1016/j.ijepes.2020.105998.
6. J. Zhao, W. Wu, Z. Shuai, A. Luo, H. S. H. Chung, and F. Blaabjerg, “Robust Control Parameters Design of PBC Controller for LCL-Filtered Grid-Tied Inverter,” IEEE Trans. Power Electron., vol. 35, no. 8, pp. 8102–8115, 2020, doi: 10.1109/TPEL.2019.2963200.
7. M. I. Solihin, L. F. Tack, and M. L. Kean, “Tuning of PID Controller Using Particle Swarm Optimization (PSO),” Int. J. Adv. Sci. Eng. Inf. Technol., vol. 1, no. 4, p. 458, 2011, doi: 10.18517/ijaseit.1.4.93.
8. T. Adel and C. Abdelkader, “A Particle Swarm Optimization approach for optimum design of PID controller for nonlinear systems,” in 2013 International Conference on Electrical Engineering and Software Applications, ICEESA 2013, 2013, pp. 1–4, doi: 10.1109/ICEESA.2013.6578478.

9. Y. Li, K. H. Ang, and G. C. Y. Chong, “PID Control System Analysis and Design: Problems, Remedies, and Future Directions,” IEEE Control Syst., vol. 26, no. 1, pp. 32–41, 2006, doi: 10.1109/MCS.2006.1580152.
10. M. B. Shadmand, R. S. Balog, and H. Abu-Rub, “Model predictive control of PV sources in a smart DC distribution system: Maximum power point tracking and droop control,” IEEE Trans. Energy Convers., vol. 29, no. 4, pp. 913–921, 2014, doi: 10.1109/TEC.2014.2362934.
11. A. Abu-Rmileh and W. Garcia-Gabin, “A gain-scheduling model predictive controller for blood glucose control in type 1 diabetes,” IEEE Trans. Biomed. Eng., vol. 57, no. 10 PART 1, pp. 2478–2484, 2010, doi: 10.1109/TBME.2009.2033663.
12. M. Shadmand, R. S. Balog, and H. Abu Rub, “Maximum Power Point Tracking using Model Predictive Control of a flyback converter for photovoltaic applications,” 2014 Power Energy Conf. Illinois, pp. 1–5, 2014, doi: 10.1109/peci.2014.6804540.
13. P. Cortes, A. Wilson, S. Kouro, J. Rodriguez, and H. Abu-Rub, “Model predictive control of multilevel cascaded H-bridge inverters,” IEEE Trans. Ind. Electron., vol. 57, no. 8, pp. 2691–2699, 2010, doi: 10.1109/TIE.2010.2041733.
14. M. B. Shadmand, M. Mosa, R. S. Balog, and H. A. Rub, “An improved MPPT technique for high gain DC-DC converter using model predictive control for photovoltaic applications,” Conf. Proc. - IEEE Appl. Power Electron. Conf. Expo. - APEC, pp. 2993–2999, 2014, doi: 10.1109/APEC.2014.6803730.