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首页> 外文会议>2016 International Conference on Electrical Power and Energy Systems >Single Phase 9 Level Symmetrical Cascaded H-Bridge Inverter for different PWM techniques
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Single Phase 9 Level Symmetrical Cascaded H-Bridge Inverter for different PWM techniques

机译：适用于不同PWM技术的单相9级对称级联H桥逆变器

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摘要

Multilevel inverters are best suitable for high power applications as they provide quality output waveform with less amount of voltage and current stresses on the switching elements which ensure good quality performance, among the various topologies of multilevel inverter cascaded H-Bridge is more reliable, simple in design and can be implemented easily and has better performance compared to other topologies. In this paper analysis is done on single phase 9 level symmetrical cascaded H-Bridge inverter and the performance of the inverter is analyzed for different PWM techniques such as In Phase Disposition (IPD), Phase Opposition Disposition (POD), Alternate Phase Opposition Disposition (APOD) using POWERSIM simulation software and the inverter is also implemented in hardware and the programming for the switching pulses is done in Code Composer Studio software using Digital Signal Controller TMS320F28335. A comparison of the Total Harmonic Distortion at a modulating frequency of 1.25 kHz and Modulating Index 1 AND 0.8 is done for all the above PWM techniques in both simulation and hardware.
机译：多电平逆变器最适合大功率应用，因为它们在开关元件上提供了较少的电压和电流应力的高质量输出波形，从而确保了良好的质量性能。设计，并且易于实现，并且与其他拓扑相比具有更好的性能。本文针对单相9级对称级联H桥逆变器进行了分析，并针对不同的PWM技术（如同相安置（IPD），相安置（POD），交替相安置（使用POWERSIM仿真软件的变频器（APOD），并且逆变器也以硬件实现，开关脉冲的编程通过使用数字信号控制器TMS320F28335的Code Composer Studio软件完成。在仿真和硬件中，对所有上述PWM技术进行了1.25 kHz调制频率和调制指数1 AND 0.8的总谐波失真的比较。

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