Power Quality Improvement in Solar Integrated Power Systems Using Fuzzy-Based MMC UPQC

Authors

  • Rajesh Garikapati Department of Electrical Engineering, Annamalai University, Tamil Nadu, India
  • S. Ramesh Kumar Department of Electrical Engineering, Annamalai University, Tamil Nadu, India
  • N. Karthik EEE Department, Bapatla Engineering College, Andhrapradesh, India.

Keywords:

Power Quality, Modular Multilevel Converter, Unified Power Quality Conditioner, Discrete Fourier Transform, fuzzy logic, PV generation

Abstract

Fuzzy-based MMC-UPQC in solar-integrated power systems to enhance power quality is proposed in this work. Due to power electronic switches in solar integration systems and in the nonlinear loads, harmonics and voltage sag and swells will impact other equipment and other consumers in the power systems. The proposed work aims to suggest the adoption of a Modular Multilevel Converter (MMC) based Unified Power Quality Conditioner (UPQC) to improve the power quality of medium and high-voltage solar-connected power systems. The proposed MMC-UPQC is highly unified and has reduced DC-link voltage, effectively isolated harmonics, and improves voltage regulation in the main system. To explain this work establishes the switching strategy of the MMC by examining how it suppresses harmonics and regulates the voltage. Based on this analysis, the paper designs a compound control strategy that combines a series and shunts hybrid active power filter and a synchronous method using SGDFT (Sliding-Mode Generalized Discrete Fourier Transform) filtered PLL (Phase Locked Loop). A fuzzy controller is adopted as DC voltage regulator due to its capability to manage uncertainties and nonlinearities in the system. The system utilizes a collection of fuzzy rules that enable the mapping of input signals to the output signal, thus rendering it appropriate for deployment in situations where the system dynamics are intricate. Finally, the paper validates the performance of the MMC-UPQC in a supply system using MATLAB/Simulink simulations. By analysing simulation results, the effectiveness of the MMC-UPQC in regulating control grid energy, suppressing load harmonic current, and compensating for immediate control is demonstrated.

Downloads

Download data is not yet available.

References

M. P. Thit, S. S. E. Aung, and H. S. Yin, “Performances analysis on power quality problems mitigation by using unified power quality conditioner (UPQC),” JAREE (Journal on Advanced Research in Electrical Engineering), vol. 3, no. 2, pp. 104-110, 2019.

A. Aslam, N. Ahmed, S.A. Qureshi et al., “Advances in solar PV systems; a comprehensive review of PV performance, influencing factors, and mitigation techniques,” Energies, vol. 15, no. 20, #7595, 2022.

H. Alenius, R. Luhtla, T. Messo et al., “Autonomous reactive power support for smart photovoltaic inverter based on real-time grid-impedance measurements of a weak grid,” Electric Power Systems Research, vol. 182, 2020.

S. Sahoo, “Recent trends and advances in power quality,” Power Quality in Modern Power Systems, pp. 337-358, 2021.

S. J. Alam and S. R. Arya, “Compensation of power quality problems through UPQC‐S using enhanced complex coefficient filter,” International Trans. on Electrical Energy Systems, vol. 31, no. 10, pp. 1-22, 2020.

M. Rajendran, “Comparison of various control strategies for UPQC to mitigate PQ issues,” Journal of The Institution of Engineers (India): Series B, vol. 102, pp. 19-29, 2020.

R. A. Modesto, S. A. O. da Silva, and A. A. de Oliveira Júnior. “Power quality improvement using a dual unified power quality conditioner/uninterruptible power supply in three‐phase four‐wire systems,” IET Power Electronics, vol. 8, no. 9, pp. 1595–1605, 2015.

M. Ucar and S. Ozdemir, “3-Phase 4-leg unified series–parallel active filter system with ultra-capacitor energy storage for unbalanced voltage sag mitigation,” International Journal of Electrical Power & Energy Systems, vol. 49, pp. 149-159, Jul. 2013.

R. J. M. dos Santos, J. C. da Cunha, and M. Mezaroba, “A simplified control technique for a dual unified power quality conditioner,” IEEE Trans. on Industrial Electronics, vol. 61, no. 11, pp. 5851-5860, 2014.

F. Martinez-Rodrigo, D. Ramirez, A. B. Rey-Boue et al., “Modular multilevel converters: Control and applications,” Energies, vol. 10, no. 11, #1709, 2017.

S. Ali, Z. Ling, K. Tian et al., “Recent advancements in submodule topologies and applications of MMC,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 9, no. 3, pp. 3407-3435, 2021.

R. Senapati, R. N. Senapati, and M. K. Moharana, “Sinusoidal current control strategy for UPQC in grid connected PV-fuel cell micro-grid,” International Journal of Engineering and Technology (IJET), vol. 9, no. 4, pp. 2800-2813, 2017

P. Ray, P. K. Ray, and S. K. Dash, “Power quality enhancement and power flow analysis of a PV integrated UPQC system in a distribution network,” IEEE Trans. on Industry Applications, vol. 58, no. 1, pp. 201-211, 2022.

Y. Long, Y. Xu and Y. Xu, “A MMC hysteresis current control method based on current slope,” in Proc. of IECON 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017, pp. 577-582.

Z. Shu, M. Liu, L. Zhao et al., “Predictive harmonic control and its optimal digital implementation for MMC-based active power filter,” IEEE Trans. on Industrial Electronics, vol. 63, no. 8, pp. 5244-5254, 2016.

S. Fahad, A. Goudarzi, Y. Li et al., “A coordination control strategy for power quality enhancement of an active distribution network,” Energy Reports, vol. 8, pp. 5455-5471, 2022.

D. I. Brandao, “Coordinated control of distributed three-and single-phase inverters connected to three-phase three-wire microgrids,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 8, no. 4, pp. 3861-3877, 2020.

C. Jiang and S. Zhang, “Power quality compensation strategy of MMC-UPQC based on passive sliding mode control,” IEEE Access, vol. 11, pp. 3662-3679, 2023.

H. Kenjrawy, C. Makdisie, I. Houssamo et al., “New modulation technique in smart grid interfaced multilevel UPQC-PV controlled via fuzzy logic controller,” Electronics, vol. 11, no. 6, #919, 2022.

Q. Yuan, Y. Yang, H. Wu et al., “Low speed sensor-less control based on an improved sliding mode observation and the inverter nonlinearity compensation for SPMSM,” IEEE Access, vol. 8, pp. 61299-61310, 2020.

N. Hahn, F. Schultz, and S. Spors, “Band Limited Impulse Invariance Method,” in Proc. of 30th European Signal Processing Conference (EUSIPCO), 2022, pp. 209-213.

J. Yu, Y. Xu, Y. Li et al., “An inductive hybrid UPQC for power quality management in premium-power-supply-required applications,” IEEE Access, vol. 8, pp. 113342-113354, 2020.

Y. Yang, X. Xiao, S. Guo et al., “Energy storage characteristic analysis of voltage sags compensation for UPQC based on MMC for medium voltage distribution system,” Energies, vol. 11, no. 4, #923, 2018.

Modular multilevel converter.

Downloads

Published

17.05.2023

How to Cite

Garikapati, R. ., Kumar, S. R. ., & Karthik, N. . (2023). Power Quality Improvement in Solar Integrated Power Systems Using Fuzzy-Based MMC UPQC. International Journal of Intelligent Systems and Applications in Engineering, 11(6s), 120–131. Retrieved from https://ijisae.org/index.php/IJISAE/article/view/2835

Issue

Section

Research Article