通过优化电平转换器的位置提高低元件多电平逆变器的性能

IF 1.3 4区工程技术 Q3 COMPUTER SCIENCE, INFORMATION SYSTEMS

IEEE Latin America Transactions Pub Date : 2024-03-20 DOI:10.1109/TLA.2024.10534310

VIJAYARAJA L;Ganesh Kumar S;Marco Rivera;Ebrahim Babaei

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引用次数: 0

摘要

使用双向和单向开关构建了有交叉连接开关和无交叉连接开关的多电平逆变器（MLI），并通过实时实验验证了它们的性能。在这里，先构建了交叉连接开关逆变器（CCSI），然后移除 CCSI 中的交叉连接开关，得到减少开关的改进型逆变器（MMLI）。此外，还对 CCSI 和 MMLI 配置进行了研究，确定了电平转换器电路在基本单元中的最佳位置，并提出了逆变器中使用的不同类型的电压源设计程序，以提高性能。在提出的九种不同算法中，确定电压源值的最佳方法是设计 31 级 CCSI、49 级和 71 级 MMLI，并进行了实验测试。对所提出的转换器进行了效率、总闭锁电压、谐波存在、实功率和无功功率的研究，以了解它们的性能。最后，就开关数量、导通状态开关、电压源和效率等方面，对所提出的结构与其他 MLI 进行了比较分析。

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Performance Enhancement of Reduced Component Multilevel Inverter with Optimal Placement of Level Shifter

Multi-Level Inverter (MLI) with and without cross-connecting switches is constructed using bi-directional and uni-directional switches and their performances are verified via a real-time experimentation. Here, a cross connecting switch inverter (CCSI) is constructed and then cross connecting switches in CCSI are removed for the modified inverter (MMLI) with reduction of switches. Further, the CCSI and MMLI configuration is studied with the identification of optimal placement of the level shifter circuit in the basic unit and different types of procedures for the design of voltage sources that are used in the inverter to enhance the performance is proposed. The best method of defining the value of voltage sources among the proposed nine different algorithms a 31-level CCSI, a 49 level and 71 level MMLI are designed and tested experimentally. Efficiency, total blocking voltage, harmonic presence, real and reactive powers are obtained for the proposed converters to study their performance. Finally, a comparative analysis is made for the proposed structure against the other MLI in-term of switch count, ON state switches, voltage sources and efficiency.

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来源期刊

IEEE Latin America Transactions COMPUTER SCIENCE, INFORMATION SYSTEMS-ENGINEERING, ELECTRICAL & ELECTRONIC

CiteScore

3.50

自引率

7.70%

发文量

192

审稿时长

3-8 weeks

期刊介绍： IEEE Latin America Transactions (IEEE LATAM) is an interdisciplinary journal focused on the dissemination of original and quality research papers / review articles in Spanish and Portuguese of emerging topics in three main areas: Computing, Electric Energy and Electronics. Some of the sub-areas of the journal are, but not limited to: Automatic control, communications, instrumentation, artificial intelligence, power and industrial electronics, fault diagnosis and detection, transportation electrification, internet of things, electrical machines, circuits and systems, biomedicine and biomedical / haptic applications, secure communications, robotics, sensors and actuators, computer networks, smart grids, among others.