Abstract: The main purpose of these project is maintain the stable voltage regulation in the transmission lines by using the cascaded multi level converter, In This converter we are using insulated gate bipolar transistor (IGBT) technology. This project deals with the design methodology for cascaded multilevel converter (CMC)-based transmission-type STATCOM (T-STATCOM). Sizing of the CMC module, the number of H-bridges (HBs) in each phase of the CMC, ac voltage rating of the CMC, the number of paralleled CMC modules in the T-STATCOM system, the optimum value of series filter reactors, and the determination of bus bar in the power grid to which the T-STATCOM system is going to be connected, current status of high voltage (HV) insulated gate bipolar transistor (IGBT) technology, and the required reactive power variation range for the T-STATCOM application. The equalization of dc-link capacitor voltages is achieved according to the modified selective swapping (MSS) algorithm. An L-shaped laminated bus has been designed and the HV IGBT driver circuit has been modified for the optimum switching performance of HV IGBT modules the simulation is carried over by the MATLAB-SIMULINK software.
Keywords: CMI, STATCOM, Power Quality, Reactive Power, H Bridge, Circuit Diagram.
Title: Cascaded Multilevel Converter Based T-STATCOM
Author: Y. Prashanth Rao, V Mahesh Babu, M Sandeep
International Journal of Electrical and Electronics Research
ISSN 2348-6988 (online)
Research Publish Journals
