Abstract
The distribution power system has power quality problems such as harmonics injected into the grid. This is mainly because of the presence of a nonlinear load in the system. The distribution static compensator (D-STATCOM) can alleviate power quality problems. Conventionally, proportional and integral (PI) controllers are used to control DC-link in D-STATCOM. However, the PI controller cannot provide optimal performance for sudden change, and this results in the lower transient response of D-STATCOM. Robust controllers like fuzzy logic controller (FLC) are required to improve the regulation of DC-link voltage. This paper presents the design of D-STATCOM-based fuzzy logic controller for a distribution power system. The fuzzy-based system provides adequate dynamic voltage control because of variations in PI gains appropriated using two-dimensional knowledge rule base and great sampling during the dynamic period. Triangular membership functions are constructed for reducing oscillations in the output of FLC, whereas Mamdani’s centered min operator is used for fuzzification and defuzzification. The synchronous reference frame theory (SRFT)-based control technique is implemented to generate reference current which is further used in voltage source converter (VSC) control. System performance is studied in MATLAB/SIMULINK platform.
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Appendix
Appendix
Ls (Coupling Inductance) = 1 mH, Vs (source voltage) = 415 V, fs (supply frequency) = 50 Hz, filter impedance (Rf = 10 Ω, Cf = 1000 µF), Cdc (DC-link capacitor) = 1500 µF, Vdc (DC-link) = 800 V.
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Gupta, S., Muskan (2021). Fuzzy Logic Control D-STATCOM Technique. In: Bansal, P., Tushir, M., Balas, V., Srivastava, R. (eds) Proceedings of International Conference on Artificial Intelligence and Applications. Advances in Intelligent Systems and Computing, vol 1164. Springer, Singapore. https://doi.org/10.1007/978-981-15-4992-2_17
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DOI: https://doi.org/10.1007/978-981-15-4992-2_17
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