Enhancement of Power Quality Using Hybrid Active Neutral Point Clamped Flying Capacitor Multilevel Inverter
Author(s):
SUJEET YADAV, VIVEK KUMAR YADAV
Keywords:
cascaded H-bridge (CHB), Neutral point clamped (NPC), Flying capacitor (FC)
Abstract
Multilevel inverters have been widely accepted for high-power high-voltage applications in this paper presents the hybrid cascaded active neutral-point-clamped (ANPC)-based multilevel converter. This paper proposes a new seven –level hybrid topology combining features of neutral point clamped and flying capacitor inverters. This paper presents the seven level inverter with harmonics reduction. Multilevel converters are the attractive solution for medium and high-power applications. For medium voltage inverters, cascaded H-bridge (CHB), neutral point clamped (NPC) and flying capacitor (FC) are the primary topologies. Among them, ANPC and FC provide a common dc link which is a strict requirement for many applications. The proposed topology provides a tradeoff between different component counts to achieve a good loss distribution, avoid direct series connection of semiconductor devices, keep the balanced operation of dc-link capacitors while keeping the number of costly components such as capacitors and switches low. The required modulation strategy is developed and the operation of the proposed topology is studied in this paper. For medium voltage applications verify the performance of the converter by using the simulation results. Experimental results from a low-power laboratory prototype are presented that verify the operation of the hybrid converter under SHE-PWM
Article Details
Unique Paper ID: 147983

Publication Volume & Issue: Volume 5, Issue 12

Page(s): 61 - 67
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