The evolution of multi-level inverters (MLIs) has led to an increase in their efficiency and reliability. This paper demonstrates an FPGA-based reduced switch novel Infinite-Level Inverter. Conventional two-level Voltage Fed Inverters (VFI) suffer from reduced efficiency, greater voltage distortion and higher switching losses. Multi-level inverters (MLI) outweigh the conventional inverter in terms of improved voltage profile, reduced switching losses, increased efficiency and lower component count. This paper demonstrates an FPGA-based Reduced Switch Novel Infinite-Level Inverter that achieves infinite voltage output levels; with a reduced count of passive and active elements. The proposed inverter has a high DC-link utilization factor of 1.23, reduced blocking voltage and inverter switching losses, employing a single DC source and least number of components. It outputs a sinusoidal voltage with a minimum voltage distortion of 2.1%, which lies within the approved limits of IEEE 519-2014 standard. Comparative studies of the proposed inverter are conducted with different multi-level inverter configurations. FPGA-based control of the proposed inverter reduces execution time and enhances the control performance of the inverter. Evidently, the low cost function of the proposed inverter indicates the economic feasibility of the developed inverter for low-power, low-cost applications.

中文翻译：

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基于 FPGA 的精简开关新型无限级逆变器

多电平逆变器 (MLI) 的发展导致其效率和可靠性的提高。本文演示了一种基于 FPGA 的精简开关新颖的无限级逆变器。传统的两级电压馈电逆变器 (VFI) 存在效率降低、电压失真更大和开关损耗更高的问题。多电平逆变器 (MLI) 在改善电压曲线、降低开关损耗、提高效率和减少组件数量方面优于传统逆变器。本文演示了一种基于 FPGA 的精简开关新型无限电平逆变器，可实现无限电压输出电平；减少无源和有源元件的数量。所提出的逆变器具有 1.23 的高直流链路利用率，降低阻断电压和逆变器开关损耗，采用单个直流电源和最少数量的组件。它输出正弦电压，最小电压失真为 2.1%，在 IEEE 519-2014 标准的批准范围内。使用不同的多电平逆变器配置对所提出的逆变器进行了比较研究。所提出逆变器的基于 FPGA 的控制减少了执行时间并提高了逆变器的控制性能。显然，所提出的逆变器的低成本功能表明所开发的逆变器在低功率、低成本应用中的经济可行性。所提出逆变器的基于 FPGA 的控制减少了执行时间并提高了逆变器的控制性能。显然，所提出的逆变器的低成本功能表明所开发的逆变器在低功率、低成本应用中的经济可行性。所提出逆变器的基于 FPGA 的控制减少了执行时间并提高了逆变器的控制性能。显然，所提出的逆变器的低成本功能表明所开发的逆变器在低功率、低成本应用中的经济可行性。