Design of a reduced component count single-phase to three-phase quasi-Z-source converter

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Design of a reduced component count single-phase to three-phase quasi-Z-source converter

机译：减少组件数的单相至三相准Z源转换器的设计

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This study proposes a cost-effective four-switch single-phase to three-phase converter with an improved space vector pulse width modulation method. This structure employs the quasi-Z-source (QZs) topology that can be utilised in induction motor drive applications. Compared with conventional four-switch structures, buck-boost operation is a unique property of this configuration. This four-switch QZs structure decreases the switching losses, load current total harmonic distortion and cost in comparison with traditional six-switch structures. Without using any extra filtering circuits, the applied modulation method can work well to reject the influence of DC-link voltage ripples on the converter voltage, which can be accomplished by either power supply or voltage variations in the four-switch structure. The closed-loop modulation strategy recognises via sensing any unbalanced voltage that occurs across two split capacitors, and by applying the changes in the vector's activation interval time, the three-phase output voltage can be balanced. The simulation and experimental results of the suggested converter with the improved modulation method have demonstrated the converter's performance and the potential of the structure to be further developed.

机译：这项研究提出了一种具有成本效益的四开关单相至三相转换器，该转换器具有改进的空间矢量脉冲宽度调制方法。这种结构采用了准Z源（QZs）拓扑，可在感应电动机驱动应用中使用。与传统的四开关结构相比，降压-升压操作是该配置的独特属性。与传统的六开关结构相比，这种四开关QZs结构降低了开关损耗，负载电流总谐波失真和成本。在不使用任何额外滤波电路的情况下，所应用的调制方法可以很好地抑制直流母线电压纹波对转换器电压的影响，这可以通过电源或四开关结构中的电压变化来实现。闭环调制策略通过检测两个分离电容器之间出现的任何不平衡电压来识别，并且通过应用矢量激活间隔时间的变化，可以平衡三相输出电压。所建议的转换器采用改进的调制方法的仿真和实验结果证明了转换器的性能以及该结构有待进一步开发的潜力。

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《Power Electronics, IET》 |2014年第3期|489-495|共7页
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1. Single-Phase to Three-Phase Converters With Two Parallel Single-Phase Rectifiers and Reduced Switch Count [J] . Rocha Nady, de Oliveira Italo A. Cavalcanti, de Menezes Ely Cavalcanti, Power Electronics, IEEE Transactions on . 2016,第5期

机译：具有两个并联单相整流器并减少了开关数量的单相到三相转换器
2. Single-Phase to Three-Phase DC-Link Converters With Reduced Controlled Switch Count [J] . IEEE Transactions on Industry Applications . 2014,第2期

机译：具有减少的受控开关数量的单相到三相直流母线转换器
3. Low-Frequency DC-Link Capacitor Current Mitigation in Reduced Switch Count Single-Phase to Three-Phase Converter [J] . Anil K. Adapa, Sujata Bhowmick, Vinod John Industrial Electronics, IEEE Transactions on . 2021,第4期

机译：低频直流链路电容器电流减压，减少开关计数单相到三相转换器
4. Single-phase to three-phase reduced-switch-count converters applied to wind energy conversion systems using doubly-fed induction generator [C] . Guilherme C. Leandro, Emerson L. Soares, Nady Rocha Brazilian Power Electronics Conference . 2017

机译：使用双馈感应发电机的风能转换系统中的单相至三相减开关数转换器
5. Power factor correction topologies and small-signal modeling: I. Single-phase and three-phase power factor correction. II. Small-signal analysis of converters in discontinuous conduction mode. [D] . Schenk, Kurt. 1999

机译：功率因数校正拓扑和小信号建模：I.单相和三相功率因数校正。二。不连续导通模式下转换器的小信号分析。
6. Examining the Impact of Separate Components of a Multi-Component Intervention Designed to Reduce At-Risk Drinking among Older Adults: the Project SHARE Study [O] . Dr. O. Kenrik Duru, Dr. Haiyong Xu, Dr. Alison A. Moore, -1

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7. Integration of an Active Filter and a Single-Phase AC/DC Converter With Reduced Capacitance Requirement and Component Count [O] . Hui, SYR, Li, S, QI, W, 2016

机译：集成有源滤波器和单相aC / DC转换器，降低电容要求和元件数量

Design of a reduced component count single-phase to three-phase quasi-Z-source converter

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