A Grid Synchronization Phase Locked Loop Method for Grid-Connected Inverters Systems

Authors: Naima Ikken, Abdelhadi Bouknadel, Nour-eddine Tariba Ahmed Haddou, Hafsa El Omari

Abstract:

The operation of grid-connected inverters necessity a single-phase phase locked loop (PLL) is proposed in this article to accurately and quickly estimate and detect the grid phase angle. This article presents the improvement of a method of phase-locked loop. The novelty is to generate a method (PLL) of synchronizing the grid with a Notch filter based on adaptive fuzzy logic for inverter systems connected to the grid. The performance of the proposed method was tested under normal and abnormal operating conditions (amplitude, frequency and phase shift variations). In addition, simulation results with ISPM software are developed to verify the effectiveness of the proposed method strategy. Finally, the experimental test will be used to extract the result and discuss the validity of the proposed algorithm.

Keywords: Phase locked loop, PLL, notch filter, fuzzy logic control.

References:

[1] IKKEN, N., BOUKNADEL, A., EL OMARI, Hafsa, et al. : Design and implementation of intelligent PI-fuzzy logic control for grid connected inverters. p. 1111-1117. Renewable and Sustainable Energy Conference (IRSEC), 2016 International. IEEE, (2016).
[2] IKKEN, N., BOUKNADEL, A., HADDOU, A., et al. A comparative Study and implementation of Single-Phase PLL techniques for Grid-Connected Inverters Systems. Journal of Electrical Systems, 2018, vol. 14, no 4.
[3] IKKEN, Naima, BOUKNADEL, Abdelahdi, HADDOU, Ahmed, et al. PLL Synchronization Method Based on Second-Order Generalized Integrator for Single Phase Grid Connected Inverters Systems during Grid Abnormalities. In : 2019 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS). IEEE, 2019. p. 1-5.
[4] Texas Instrumeent Software Phase Locked Loop Design Using C2000 Microcontrollers for Three Phase Grid Connected Applications.
[5] FREIJEDO, Francisco D., DOVAL-GANDOY, Jesus, LOPEZ, Oscar, et al.: Robust phase locked loops optimized for DSP implementation in power quality applications. p. 3052-3057. Industrial Electronics, 2008. IECON 2008. 34th Annual Conference of IEEE. IEEE, (2008)..
[6] HAN, Yang, XU, Lin, KHAN, Muhammad Mansoor, et al. :A novel synchronization scheme for grid-connected converters by using adaptive linear optimal filter based PLL (ALOFPLL). vol. 17, no 7, p. 1299-1345.Simulation Modelling Practice and Theory, (2009)
[7] LEE, Kyoung-Jun, LEE, Jong-Pil, SHIN, Dongsul, et al. A novel grid synchronization PLL method based on adaptive low-pass notch filter for grid-connected PCS. vol. 61, no 1, p. 292-301. IEEE Transactions on Industrial Electronics,( 2014)
[8] XU, Lin, HAN, Yang, ZHOU, Li-Dan, et al.:Novel phase-locked loop using adaptive notch filter. vol. 92, no 4, p. 7-12.Elektronika ir Elektrotechnika,( 2009).
[9] FREIJEDO, Francisco D., YEPES, Alejandro G., LPEZ, scar, et al. :An optimized implementation of phase locked loops for grid applications. vol. 60, no 9, p. 3110-3119.IEEE Transactions on Instrumentation and Measurement, (2011).
[10] R. Teodorescu, M. Liserre, and P. Rodriguez, : Grid Converter for Photovoltaic and Wind Power Systems. Hoboken, NJ: Wiley, (2011).
[11] KOBOU NGANI, Patrick, HADJI-MINAGLOU, Jean-Rgis, MARSO, Michel, et al. :A new Single-phase PLL based on the input voltage magnitude estimation. (2015).
[12] BHARDWAJ, M. Software phased-locked loop design using C2000 microcontrollers for single phase grid connected inverter. Application Report, Texas Instruments, (2013).
[13] HAMED, Hany A., BAYOUMI, Ehab HE, et EL-KHOLY, E. E. Fuzzy PLL for three-level neutral point clamped active rectifiers. , vol. 2, no 3, p. 170-190. International Journal of Industrial Electronics and Drives, (2015).
[14] Digitally Controlled Solar Micro Inverter Design using C2000 Piccolo Microcontroller, Application Report, Texas Instruments, (2013).
[15] Manish S Trivedi, Uday B Mujumdar. Study and Simulation of Parks Transform PLL for robust single phase grid connected system. 2321-8169 Vol. 3, no 2; p149-152 . International Journal on Recent and Innovation Trends in Computing and Communication.
[16] RODRGUEZ GUERRA, Juan Carlos. Test bench evaluation of the main synchronization methods for grid-connected voltage source converters. (2012).
[17] PALLE, Sreeshailam, ARAFAT, N., SOZER, Y., et al. : Voltage harmonic control of weak utility grid through distributed energy systems. p. 1982-1989. Energy Conversion Congress and Exposition (ECCE), (2012).