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In this paper, PSPICE analysis and design of grid connected multilevel converter will be presented. This converter has all the features of H-bridge structure, while it has six semiconductor switches and drivers to produce five-level output voltage. Reduction of IGBTs and drivers decreases the converter losses and system cost. The PSPICE analysis is used to predict the spikes on the collector emitter...
In this paper, a 3-phase, Y-connected, 5-level Static Synchronous Compensator (STATCOM) is proposed with reduced number of switches for single phase and unbalanced three-phase loads. The system is implemented and tested under different loading conditions. The level shifted carrier based SPWM method, instantaneous single phase active (P) and reactive (Q) powers are used to control the system. The simulation...
This paper presents a new recharging strategy for the DC link capacitors of the H-bridge modular multilevel converter (HB-M2C) following DC side faults. The recharging strategy investigated in this paper focuses on the charging algorithm that ensures controlled charging of the DC link capacitors, while ensuring that voltage across the H-bridge cell capacitors remain balanced, and within switching...
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