Comparison of Z-source Inverter with DC-DC Boost converter fed VSI for PV applications

2014 IEEE 2nd International Conference on Electrical Energy Systems (ICEES) Pub Date : 2014-10-16 DOI:10.1109/ICEES.2014.6924147

N. Kalaiarasi, S. Paramasivam, Sanchari Kuntu

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引用次数: 13

Abstract

This paper presents the photo-voltaic (PV) system based on simple boost Z-Source Inverter (ZSI) for three phase resistive load. Here PV cell and PV module model is developed from mathematical equations. Voltage of photovoltaic cell varies with temperature and irradiation. For most of the PV applications PV output voltage is not enough according to specific load requirement. So, the conventional Voltage Source Inverter (VSI) that has been the power conversion technology requires additional voltage boost converter for such applications. The ZSI implements voltage boost as well as voltage inversion simultaneously in a single-stage. Thus Z-source inverter eliminates the limitations of conventional boost converter interfaced with VSI. Simple boost control technique with sinusoidal pulse width modulation is used here for Z-source inverter. Inductor and capacitor values are calculated for Z-source network. In this paper performance of Z-source inverter topology over conventional boost converter interfaced with VSI topology is studied using MATLAB SIMULINK software.

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z源逆变器与DC-DC升压变换器馈入VSI在光伏应用中的比较

提出了一种基于简单升压z源逆变器(ZSI)的三相电阻负载光伏系统。本文从数学方程出发建立了光伏电池和光伏组件的模型。光伏电池电压随温度和辐照而变化。对于大多数PV应用，PV输出电压不足以满足特定负载的要求。因此，传统的电压源逆变器(VSI)一直是功率转换技术，需要额外的电压升压转换器用于此类应用。ZSI在单级同时实现升压和电压反转。因此，z源逆变器消除了传统升压转换器与VSI接口的限制。简单的升压控制技术与正弦脉宽调制在这里使用的z源逆变器。计算了z源网络的电感和电容值。本文利用MATLAB SIMULINK软件研究了z源逆变器拓扑与VSI拓扑接口的传统升压变换器相比的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2014 IEEE 2nd International Conference on Electrical Energy Systems (ICEES)

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