Alternate Arm Based Modular Multilevel Converter With DC Fault Blocking Capability
Journal Title: International Journal of Science Engineering and Advance Technology - Year 2017, Vol 5, Issue 1
Abstract
This work gives a review of DC side tollerance of failure issues of VSC based HVDC framework and the requirement for blame tolerant converters. The working standard and DC blame ride through capacity of as of late presented Alternate Arm Modular Multilevel Converter (AAMMC) has been talked about. The capacitor voltage adjusting issues of AAMMC is broke down and a novel plan for adjusting capacitor voltages of the wave molding circuit is displayed in this work. The voltage adjusting of capacitors of wave forming circuits in the arm is finished by presenting a cover period amid zero voltage period. Utilizing the proposed plot, the extent and course of the current amid the cover time frame can be controlled by fluctuating the exchanging design.. It helps in charging or releasing of the sub module capacitors to convey them to their reference esteem. Toward the finish of the cover time frame, the arm current is conveyed to zero preceding opening the chief change in order to keep away from the spike over the arm inductor. The proposed plan is executed by fuzzy controller to lessen the aggregate symphonious distortion. The adequacy of the proposed control plot has been approved utilizing simulation in MATLAB/SIMULINK.
Authors and Affiliations
P Lalitha Naga Surya Kumari| M.Tech Student, Department of EEE, KIET Kakinada, India, M Ramesh| Asst. Professor, Department of EEE, KIET Kakinada, India
Keywords
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