摘 要

与传统Ｚ源逆变器相比，准Ｚ源逆变器具有电容电压应力低的优点。但是基于简单升压调制策略的准Ｚ源逆变器存在开关器件电压应力大和开关频率高的缺陷。将SPWM调制策略应用于准Ｚ源逆变器，并在不产生电流纹波的条件下实现了最大调制度，不仅能够减小开关器件电压应力，而且能够降低开关频率。推导出SPWM调制下最大恒定直通时间及其与调制度的关系，给出直通注入方法。仿真和实验结果验证了SPWM最大恒定升压调制策略的有效性。

基于最大升压控制调制方法的准Z源三相逆变器应用广泛，比如电子设备、电力系统、工业等行业，都会运用到基于最大升压控制调制方法的准Z源三相逆变器系统或工具。更高效率和更高精度的基于最大升压控制调制方法制的准Z源三相逆变器一直是研究的热点。在我们日常生活中，基于最大升压控制调制方法的准Z源三相逆变器随处可见，因为其相比其他的控制方式而言，运行稳定且控制精度较高等优势，最重要的是基于最大升压控制调制方法的准Z源三相逆变器在并网控制等方面具有很好的优势。随着自动控制技术和微电子技术的不断革新，目前的技术水平为实现基于最大升压控制调制方法的准Z源三相逆变器调节控制打下坚实的基础，提供扎实的理论依据。

本次设计主要以基于最大升压控制的准Z源三相逆变器控制系统设计应用作为研究背景，运用MATLAB仿真工具搭建相应的仿真模型。该模型利用MATLAB软件中的模块库，建立了基于最大升压控制调制方法的准Z源三相逆变器在电力系统应用中的系统仿真模型，通过 MATLAB仿真软件搭建仿真模型,运行仿真，并对基于最大升压控制调制方法的准Z源三相逆变器的仿真结果进行了分析。利用MATLAB软件Simulink工具箱中模块针对三相Z源逆变器最大升压SPWM技术搭建了仿真模型。最后针对实例进行仿真验证，理论计算值和仿真结果的一致性证明了所搭建仿真模型的正确性，从而为同行从业人员或学习者提供可靠的参照。

关键词：Z源三相逆变器，最大升压控制，建模与仿真 ，MATLAB

Abstract

Compared with the traditional Z-source inverter, the quasi-Z-source inverter has the advantage of lower capacitance voltage stress. However, the quasi-Z source inverter based on the simple boost modulation strategy has the defects of high voltage stress and high switching frequency. The SPWM modulation strategy is applied to the quasi-Z-source inverter, and the maximum modulation is realized without current ripple, which can not only reduce the voltage stress of the switching device, but also reduce the switching frequency. The maximum constant direct time under SPWM modulation and its relation with modulation system are deduced, and the direct injection method is given. Simulation and experimental results verify the effectiveness of SPWM maximum constant voltage boost modulation.

Quasi-z source three-phase inverter based on the maximum boost control modulation method is widely used, such as electronic equipment, power system, industrial and other industries, will be used in the quasi-Z source three-phase inverter system or tools based on the maximum boost control modulation method. Quasi - Z - source three - phase inverters with higher efficiency and higher accuracy based on the maximum boost control modulation method are always the focus of research. In our daily life, based on the maximum pressure control method of Z source modulation three-phase inverter can be seen everywhere, because it is compared with other control methods, operation stable and the advantages of high control precision, the most important thing is based on the maximum pressure modulation control method of quasi Z source in parallel three-phase inverter control has a good advantage. With the continuous innovation of automatic control technology and microelectronics technology, the current technical level lays a solid foundation and provides a solid theoretical basis for the realization of quasi-z-source three-phase inverter regulation control based on the maximum voltage boost control modulation method.

This design is mainly based on the maximum boost control of the quasi-z source three-phase inverter control system design and application as the research background, using MATLAB simulation tools to build the corresponding simulation model. Module library of the model using the MATLAB software, based on the biggest boost control modulation method of Z source three-phase inverter system simulation model in power system applications, by MATLAB simulation software to build the simulation model, simulation operation, and to boost control modulation method based on quasi Z source of three-phase inverter simulation results are analyzed. A simulation model is built for the maximum boost SPWM technology of three-phase Z-source inverter by using the module in MATLAB Simulink toolbox. Finally, the consistency of theoretical calculation and simulation results proves the correctness of the simulation model, so as to provide reliable reference for practitioners or learners in the same field.

Key words: Z - source three - phase inverter, maximum boost control, Modeling and simulation, MATLAB

完整论文点击如下链接下载：

https://download.csdn.net/download/weixin_45905610/88568342

基于MBC调制方法的准Z源三相逆变器Simulink建模与仿真资源-CSDN文库

matlab模型及仿真点击如下链接下载：

https://download.csdn.net/download/weixin_45905610/88568344

基于MBC调制方法的准Z源三相逆变器Simulink建模与仿真-matlab仿真资源-CSDN文库