Low-Loss Inverter Design Using Ultrasonic Pulse Width Modulation

IF 0.4 4区 计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
M. H. Baqir
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Abstract

In this study, an inverter was designed with high power, very low loss, and high accuracy with a steady power factor. Due to the use of ultrasonic pulse width modulation (PWM) with frequencies 20–500 kHz, com-pound splicing (CS), and connection to a three-phase dynamic load, this work is considered an innovation. The use of an oscillator circuit with a high frequency of 4 GHz as a microcontroller is a novelty; in addition, a designed ADC is utilized to increase accuracy and reduce losses by controlling the input of the voltage, as well as contributing to the reduction of loss brought on by the characteristics of the voltage source inverters (VSIs), such as dead time determined by the excess voltage or voltage drop in the inverter and abnormal circumstances for the load current, such as short-circuit current in the production phase. The innovation relates to the inverter’s load sensing circuit, current smoothing during operation, reaction spontaneous power factor enhancement with the inverter, and compensation of active and reactive power of passive devices. This invention contributes to the advancement of DC-to-AC power converters through the achievement of extremely low losses, high precision, and lightweight construction. An accuracy of 99% was obtained, and the total harmonic distortion (THD) of the voltage and current was 0.1% → 0.8%. A power MOSFET (IXFX120N65X) was used along with an FPGA to improve control over the creation of ultrasonic PWM signals with the programmable peripheral interface (PPI) 8255A for regulatory work. The results serve as proof of this.

Abstract Image

使用超声波脉宽调制的低损耗逆变器设计
摘要 在这项研究中,设计了一种具有高功率、极低损耗、高精度和稳定功率因数的逆变器。由于使用了频率为 20-500 kHz 的超声波脉宽调制 (PWM)、组合式拼接 (CS),并与三相动态负载相连,这项工作被认为是一项创新。使用频率高达 4 GHz 的振荡电路作为微控制器是一项创新;此外,还利用了设计的 ADC,通过控制电压输入来提高精度和降低损耗,并有助于降低电压源逆变器(VSI)特性带来的损耗,例如由逆变器中的过剩电压或压降决定的死区时间,以及负载电流的异常情况,例如生产阶段的短路电流。该创新涉及逆变器的负载感应电路、运行期间的电流平滑、逆变器的反应自发功率因数增强以及无源器件的有功和无功功率补偿。本发明通过实现极低的损耗、高精度和轻质结构,为直流-交流电源转换器的进步做出了贡献。精度达到 99%,电压和电流的总谐波失真(THD)为 0.1% → 0.8%。功率 MOSFET(IXFX120N65X)与 FPGA 一起用于改善对创建超声波 PWM 信号的控制,可编程外设接口(PPI)8255A 用于调节工作。结果证明了这一点。
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来源期刊
CiteScore
1.00
自引率
20.00%
发文量
170
审稿时长
10.5 months
期刊介绍: Journal of Communications Technology and Electronics is a journal that publishes articles on a broad spectrum of theoretical, fundamental, and applied issues of radio engineering, communication, and electron physics. It publishes original articles from the leading scientific and research centers. The journal covers all essential branches of electromagnetics, wave propagation theory, signal processing, transmission lines, telecommunications, physics of semiconductors, and physical processes in electron devices, as well as applications in biology, medicine, microelectronics, nanoelectronics, electron and ion emission, etc.
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