HVDC Light Transmission System with Fuzzy Logic Based PI Controller
I.Vijay Kumar1, K. Rakesh2, T. Anil Kumar3

1I.Vijay Kumar, Department of EEE, Anurag Group Of Institutions, Hyderabad, India.
2Rakesh, Department of EEE, Anurag Group Of Institutions, Hyderabad, India.
3Dr. T. ANIL KUMAR, Department of EEE, Anurag Group Of Institutions, Hyderabad, India.
Manuscript received on September 23, 2019. | Revised Manuscript received on October 15, 2019. | Manuscript published on October 30, 2019. | PP: 7541-7545 | Volume-9 Issue-1, October 2019 | Retrieval Number: A1467109119/2019©BEIESP | DOI: 10.35940/ijeat.A1467.109119
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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 the recent times there are many advancements in the sector of power electronic equipment. HVDC transmission system is further developed into HVDC light transmission system by replacing of thyristor valves with IGBT valves. There are a lot of advantages with HVDC light system compared to normal HVDC. When HVDC light transmission is confronted with fault, then the voltage and current vary, and they takes more time to come back to their steady state with PI controller. In this paper fuzzy logic based PI controller is proposed to reduce the time to reach their normal state, and improve the system steady state. The recommended controller is compared with traditional PI (proportional integral) controller for different control requirements, DC voltage, and reactive power under sudden disturbances such as three phase to ground fault. The performance of HVDC light system with traditional PI and fuzzy-PI shall be tested on under three-phase faults using MATLAB-Simulink software.
Keywords: HVDC light, Modeling of HVDC light transmission, Fuzzy logic based PI controller, Simulation results.