Special Issue Article Open Access

29 Level H- Bridge VSC for HVDC Application

Abstract

The advancement of VSC technology leads to efficient control and management of HVDC transmission system. There are various VSC topologies are available such as Diode clamped, flying capacitor, Neutral point clamped and cascaded H-bridge converters. This paper, a multilevel voltage source converter with ac side cascaded H-bridge cells is used for HVDC application. The converter is able to produce less harmonic distortion while compared to other topologies such as a modular multilevel inverter which is currently used for HVDC networks with the help of carrier based level shifted PWM. The paper also discusses the performance of VSC HVDC under steady state. A comparative study of control using PI controller and Fuzzy based PI controller is performed. Simulation is done using MATLAB/ SIMULINK.

Syamdev.C.S, Asha Anu Kurian

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