4 research outputs found

    The Implementation of Active Power Filter using Proportional plus Resonant Controller

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    This paper presents the harmonic elimination using an active power filter (APF) for three-phase system. The design and performance comparison study of the compensating current controllers are explained. The performance of the PI controller and the proportional plus resonant (P+RES) controller are compared in the paper. Moreover, the hardware implementation of the considered system is also presented in this paper. For the experimental results, the P+RES controller can provide a good performance to control the compensating current compared with using the PI controller

    The PI Controller Design Based on Stored Energy in Capacitor Using Discrete Time Method for the Unified Power Quality Conditioner

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    āļāļēāļĢāļ­āļ­āļāđāļšāļšāļžāļēāļĢāļēāļĄāļīāđ€āļ•āļ­āļĢāđŒāļ‚āļ­āļ‡āļ•āļąāļ§āļ„āļ§āļšāļ„āļļāļĄāļ—āļĩāđˆāđ„āļĄāđˆāđ€āļŦāļĄāļēāļ°āļŠāļĄāļāļąāļšāļĢāļ°āļšāļšāļ„āļ§āļšāļ„āļļāļĄāļ”āļīāļˆāļīāļ•āļ­āļĨāļŠāđˆāļ‡āļœāļĨāļāļĢāļ°āļ—āļšāļ•āđˆāļ­āļŠāļĄāļĢāļĢāļ–āļ™āļ°āļāļēāļĢāļŠāļ”āđ€āļŠāļĒāļ‚āļ­āļ‡āļ§āļ‡āļˆāļĢāļ›āļĢāļąāļšāļ›āļĢāļļāļ‡āļ„āļļāļ“āļ āļēāļžāļāļģāļĨāļąāļ‡āđ„āļŸāļŸāđ‰āļēāļĢāļ§āļĄ (āļ§āļ‡āļˆāļĢ UPQC) āļˆāļēāļāļœāļĨāļāļĢāļ°āļ—āļšāļ”āļąāļ‡āļāļĨāđˆāļēāļ§ āļšāļ—āļ„āļ§āļēāļĄāļ™āļĩāđ‰āļ™āļģāđ€āļŠāļ™āļ­āļāļĨāļĒāļļāļ—āļ˜āđŒāļ„āļ§āļšāļ„āļļāļĄāļĢāđˆāļ§āļĄāļāļąāļšāļāļēāļĢāļĢāļ°āļšāļļāđ€āļ­āļāļĨāļąāļāļĐāļ“āđŒāļŪāļēāļĢāđŒāļĄāļ­āļ™āļīāļāļ”āđ‰āļ§āļĒāļ§āļīāļ˜āļĩāļ„āļ§āļšāļ„āļļāļĄāļĄāļļāļĄāļāļģāļĨāļąāļ‡ āđ‚āļ”āļĒāļĄāļļāđˆāļ‡āđ€āļ™āđ‰āļ™āļāļēāļĢāļ­āļ­āļāđāļšāļšāļžāļēāļĢāļēāļĄāļīāđ€āļ•āļ­āļĢāđŒāļ•āļąāļ§āļ„āļ§āļšāļ„āļļāļĄāļžāļĩāđ„āļ­āļšāļ™āļĢāļ°āļšāļšāđ€āļ§āļĨāļēāđ„āļĄāđˆāļ•āđˆāļ­āđ€āļ™āļ·āđˆāļ­āļ‡āļŠāļģāļŦāļĢāļąāļšāļĢāļ°āļšāļšāļ„āļ§āļšāļ„āļļāļĄāđāļĢāļ‡āļ”āļąāļ™āļšāļąāļŠāđ„āļŸāļ•āļĢāļ‡ āļ™āļ­āļāļˆāļēāļāļ™āļĩāđ‰ āļšāļ—āļ„āļ§āļēāļĄāļ™āļĩāđ‰āđ„āļ”āđ‰āļ­āļ˜āļīāļšāļēāļĒāļŦāļĨāļąāļāļāļēāļĢāļ—āļģāļ‡āļēāļ™āļ‚āļ­āļ‡āļ§āļ‡āļˆāļĢ UPQC āļŦāļĨāļąāļāļāļēāļĢāļ‚āļ­āļ‡āļ§āļīāļ˜āļĩāļ„āļ§āļšāļ„āļļāļĄāļĄāļļāļĄāļāļģāļĨāļąāļ‡ āļāļēāļĢāđ„āļŦāļĨāļāļģāļĨāļąāļ‡āđ„āļŸāļŸāđ‰āļēāļ‚āļ­āļ‡āļ§āļ‡āļˆāļĢ UPQC āđāļĨāļ°āļ‚āļąāđ‰āļ™āļ•āļ­āļ™āļāļēāļĢāļ­āļ­āļāđāļšāļšāļžāļēāļĢāļēāļĄāļīāđ€āļ•āļ­āļĢāđŒāļ•āļąāļ§āļ„āļ§āļšāļ„āļļāļĄāļžāļĩāđ„āļ­āļ­āļĒāđˆāļēāļ‡āļĨāļ°āđ€āļ­āļĩāļĒāļ” āļœāļĨāļāļēāļĢāļˆāļģāļĨāļ­āļ‡āļŠāļ–āļēāļ™āļāļēāļĢāļ“āđŒāļ”āđ‰āļ§āļĒāđ‚āļ›āļĢāđāļāļĢāļĄ MATLAB/Simulink āļĒāļ·āļ™āļĒāļąāļ™āđ„āļ”āđ‰āļ§āđˆāļē āļ•āļąāļ§āļ„āļ§āļšāļ„āļļāļĄāļžāļĩāđ„āļ­āļ—āļĩāđˆāđ„āļ”āđ‰āļĢāļąāļšāļāļēāļĢāļ­āļ­āļāđāļšāļšāđƒāļŦāđ‰āļŠāļĄāļĢāļĢāļ–āļ™āļ°āļāļēāļĢāļ„āļ§āļšāļ„āļļāļĄāđāļĢāļ‡āļ”āļąāļ™āļšāļąāļŠāđ„āļŸāļ•āļĢāļ‡āļ—āļĩāđˆāļ”āļĩ āļ™āļ­āļāļˆāļēāļāļ™āļĩāđ‰ āļ§āļ‡āļˆāļĢ UPQC āļŠāļēāļĄāļēāļĢāļ–āļ‰āļĩāļ”āđāļĢāļ‡āļ”āļąāļ™āļŠāļ”āđ€āļŠāļĒāđāļĨāļ°āļāļĢāļ°āđāļŠāļŠāļ”āđ€āļŠāļĒāđƒāļŦāđ‰āļāļąāļšāļĢāļ°āļšāļšāļŠāļēāļĄāđ€āļŸāļŠāļŠāļēāļĄāļŠāļēāļĒāđ„āļ”āđ‰āļ­āļĒāđˆāļēāļ‡āļ•āđˆāļ­āđ€āļ™āļ·āđˆāļ­āļ‡ āļ–āļķāļ‡āđāļĄāđ‰āļ§āđˆāļēāđāļŦāļĨāđˆāļ‡āļˆāđˆāļēāļĒāđāļĢāļ‡āļ”āļąāļ™āđāļĨāļ°āđ‚āļŦāļĨāļ”āļĄāļĩāļāļēāļĢāđ€āļ›āļĨāļĩāđˆāļĒāļ™āđāļ›āļĨāļ‡Unsuitable controller parameters in the digital control system degrade the performance of the Unified Power Quality Conditioner (UPQC). From this effect, this article proposes the control strategy operated with the harmonic identification by using the power angle control method. This study focuses on design of the PI controller parameters by discrete time method for the DC bus voltage control. In addition, this article thoroughly describes the operation of the UPQC, the principle of power angle control, the power flow of the UPQC, and the procedure of the PI controller parameters design. The simulation results by the MATLAB/Simulink confirm that the PI controller designed by discrete time approach provides the good performance of DC bus voltage control. The UPQC can continuously inject the compensating voltage and the compensating current into the three-phase system even though the voltage source and loads are changed

    The Implementation of Active Power Filter using Proportional plus Resonant Controller

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