Siddharth Kapoor
Independent Researcher
India
Abstract
Harmonic distortion in power distribution systems has become a critical concern due to the proliferation of non-linear loads, adversely affecting power quality and equipment reliability. This paper investigates the analysis of harmonic distortion in power distribution networks using Fast Fourier Transform (FFT) techniques. The study focuses on identifying harmonic components, evaluating Total Harmonic Distortion (THD), and assessing their impact on the distribution system. Simulation models representing typical distribution feeders with non-linear loads were developed in MATLAB/Simulink, and FFT analysis was performed on voltage and current waveforms. The results demonstrate the effectiveness of FFT in accurately detecting and quantifying harmonics, aiding in the diagnosis and mitigation of power quality issues. Recommendations for harmonic reduction through appropriate filtering and system design improvements are discussed.
Keywords Harmonic Distortion, Power Distribution System, Fast Fourier Transform (FFT), Total Harmonic Distortion (THD), Non-linear Loads, Power Quality.
REFERENCES
- Jun-Zhe Yang, Chi-Shan Yu, and Chih-Wen Liu, “A New Method for Power Signal Harmonic Analysis,” IEEE Transactions on Power Delivery, vol. 20, no. 2, pp. 1235–1241, April 2005. net
- Doron Shmilovitz, “On the Definition of Total Harmonic Distortion and Its Effect on Measurement Interpretation,” IEEE Transactions on Power Delivery, vol. 20, no. 1, pp. 158–160, January 2005. net
- R. Patel and J. M. Gupta, “Measurement and Analysis of Harmonic Distortion in Power Distribution Networks,” Electric Power Systems Research, vol. 79, no. 2, pp. 348–354, Feb. 2009. sciencedirect.com
- Wang and H. Li, “Power-Frequency Harmonic Measurement Using Integer-Periodic Averaging Before FFT,” Measurement, vol. 21, no. 4, pp. 271–277, 1997. sciencedirect.com
- Rozita Teymourzadeh, Memtode Jim, and Mok V. Hong, “Characteristic Analysis of 1024-Point Quantized Radix-2 FFT/IFFT Processor,” arXiv:1806.04572, June 2018. org
- Józef Borkowski and Dariusz Kania, “Interpolated-DFT-Based Fast and Accurate Amplitude and Phase Estimation for the Control of Power,” arXiv:1601.00453, January 2016. org
- [Anonymous], “Harmonic Load Identification Based on Fast Fourier Transform Technique,” Journal of Theoretical and Applied Information Technology (JATIT), vol. 95, no. 5, pp. 1050–1058, 2016. org
- [Anonymous], “Harmonic Analysis Using FFT and STFT,” International Journal of Signal and Image Processing, vol. 7, no. 4, pp. 33–45, 2016. nadiapub.com
- Chen and Y. Zhang, “DFT-Based Recursive Group-Harmonic Energy Distribution Approach for Harmonic/Interharmonic Analysis,” Electric Power Systems Research, vol. 92, pp. 123–131, 2012. sciencedirect.com
- K. Singh and P. K. Garg, “Harmonic Source Identification in Distribution Systems Using Total Harmonic Power Method,” International Journal of Electrical Power & Energy Systems, vol. 85, pp. 456–463, 2017. journals.sagepub.com
