Development of a fuzzy logic DC link control for Adaptive notch filter-based active power filter

Amir Radzuanuddin, Abdullah Hakim (2023) Development of a fuzzy logic DC link control for Adaptive notch filter-based active power filter. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Power quality (PQ) is an important matter for electrical power systems, and the system has a problem to get better power quality. Which are transient, overvoltage, Undervoltage, voltage interruption, voltage sags or dips, voltage swells voltage imbalance, and harmonics. This stated problem causes all the performance of power systems to degrade and give a negative impact on both electric utilities and end-users. In this report project, the shunt active power is used to eliminate the harmonics for power quality purposes. The circuit is designed to eliminate the harmonics which have the power filter consisting of DC link capacitor voltage as well as the use of PWM where the calculation of P-Q theory included in it. The PWM is the control strategies for this shunt active power filter to be working where the working principal is that it provides the i ref for the i s and the new signal go to the PWM that connected to the DC Link capacitor voltage that convert DC to AC back with the filtered signal. The fuzzy logic controller is used for this circuit design because it described by controlling the system by the sentences rather than by numbers. The FLC system usually takes the readings of the error and the rate change of error as the inputs and change in the control input signal as the output of the system. Overall, the system will be test under 3-phase system with 415 V and 50 HZ. The objective of this project is to test the functional of fuzzy logic controller on multiple type of load.

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