Design and Operation of Flyback CCM Inverter with Fuzzy based Discrete-Time Repetitive Control for PV Power Applications
Kanchamreddy Snehitha1, R. Kiranmayi2, K. Nagabhushanam3
1Kanchamreddy Snehitha, M.Tech, Jawaharlal Nehru Technological University College of Engineering, Anantapur (Andhra Pradesh), India.
2Dr. R. Kiranmayi, Professor & HOD, Department of EEE, Jawaharlal Nehru Technological University College of Engineering, Anantapur (Andhra Pradesh), India.
3K. Nagabhushanam, Lecturer, Jawaharlal Nehru Technological University College of Engineering, Anantapur (Andhra Pradesh), India.
Manuscript received on 05 February 2019 | Revised Manuscript received on 18 February 2019 | Manuscript Published on 04 March 2019 | PP: 49-54 | Volume-7 Issue-5S2 January 2019 | Retrieval Number: ES2006017519/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In continuous conduction mode, A discrete-time repetitive controller (RC) is proposed for fly back inverter with fuzzy controller. In this paper fuzzy based repetitive controller is used due to some advantages. Such as, it reduces ripples then THD will be reduced, which has simple structure, low cost, and high efficiency. Comparing to the conventional controller the repetitive controller obtain good tracking ability and disturbance rejection and applied to flyback inverter in Continuous Conduction Mode operation. Conventional controller results in poor control performance due to the effect of the right-half-plane zero in CCM operation. To allow tracking and rejection of periodic signals within a specified frequency range the RC scheme, a low-pass filter is used. The stability of the closed loop system is derived and the zero tracking error is achieved with the stability of the closed loop system. By using the simulation results we can analyze the proposed method.
Keywords: Module-Integrated Converter, Right-Half-Plane Zero, Low-Pass Filter, Phase-Lead Compensation, Fuzzy Control.
Scope of the Article: Fuzzy Logics