%K Bridge circuits; Electric inverters; Electric switches; Harmonic analysis; Power electronics; Power quality, DC supplies; Harmonic; Modulars; Multi Level Inverter (MLI); Multilevels; Near level control; Neutralpoint-clamped (NPC); Number of components; Power-electronics; Total standing voltage, Energy efficiency
%X Multilevel inverters (MLIs) are widely used in various sectors of power electronics. Some major benefits of using MLI are the high-quality voltage output, harmonic reduction, and efficiency. However, MLIs also bear a range of disadvantages including an excessive number of components, high total standing voltage (TSV), and complicated control scheme. Thus, a novel cross-switched neutral point clamped (CSNPC) nine-level inverter is proposed. Many of the suggested MLIs use a large number of DC supplies and additional switches that are not fully utilized and generate high power loss. However, the proposed MLI topology has a smaller number of power electronic switches and DC supplies, leading to higher energy efficiency. Moreover, a simplified high frequency modulation technique, named hysteresis-band-based discontinuous pulse width modulation (DPWM) is devised to control the proposed MLI. This modulation scheme has effectively minimized capacitor voltage imbalance. Furthermore, the designed structure is extendable to a modular MLI, without any additional H-bridge circuit. To verify its benefits over other recent similar types of MLIs, a thorough comparison is presented for the number of components and power losses. The proposed MLI has showed 95.54 efficiency, and the modular CSNPC can achieve a total harmonic distortion (THD) of 6.43. © 2023 John Wiley & Sons Ltd.
%O cited By 0
%J International Journal of Circuit Theory and Applications
%L scholars19661
%D 2024
%N 6
%R 10.1002/cta.3910
%T A novel extendable multilevel inverter for efficient energy conversion with fewer power components: Configuration and experimental validation
%A S.T. Meraj
%A S.S. Yu
%A M.S. Rahman
%A A.A. Arefin
%A M.S.H. Lipu
%A H. Trinh
%V 52
%P 2760-2785