| 适用于大功率场合的新型双Z源电压源逆变器 |
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| 引用本文： | 张筱文,郑建勇,尤鋆,张先飞,黄金军. 适用于大功率场合的新型双Z源电压源逆变器[J]. 电网技术, 2011, 0(2) |
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| 作者姓名： | 张筱文 郑建勇 尤鋆 张先飞 黄金军 |
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| 作者单位： | 东南大学电气工程学院; |
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| 基金项目： | 国家863高技术基金项目(2008AA052412)~~ |
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| 摘 要： | 传统Z源电压源逆变器(Z-source voltage-type inverter,ZVSI)中,电容电压高于输入电压,逆变器开关管电流应力过大,升压能力受到了限制,为此提出了新型双Z源电压源逆变器(novel double Z-source voltage source inverter,NDZVSI)拓扑结构。分析了NDZVSI的各种工作状态,推导了各元件电压关系。NDZVSI中各功率开关管采用改进脉宽调制(improved pulse-width modulation,IPWM)方式进行调制,确定了逆变器功率开关管的电流应力。仿真及试验结果验证了NDZVSI拓扑的可行性,与传统ZVSI相比,NDZVSI能降低电容电压,减小逆变器开关管的电流应力,提高升压能力,适于大功率应用场合。
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| 关 键 词： | 电力电子技术 新型双Z源电压源逆变器 改进脉宽调制 电流应力 |
A Novel Double Z-Source Voltage Source Inverter Suitable to High-Power Application Scenarios |
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| ZHANG Xiaowen,ZHENG Jianyong,YOU Jun,ZHANG Xianfei,HUANG Jinjun. A Novel Double Z-Source Voltage Source Inverter Suitable to High-Power Application Scenarios[J]. Power System Technology, 2011, 0(2) |
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| Authors: | ZHANG Xiaowen ZHENG Jianyong YOU Jun ZHANG Xianfei HUANG Jinjun |
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| Affiliation: | ZHANG Xiaowen,ZHENG Jianyong,YOU Jun,ZHANG Xianfei,HUANG Jinjun(College of Electrical Engineering,Southeast University,Nanjing 210096,Jiangsu Province,China) |
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| Abstract: | In traditional Z-source voltage-type inverter(ZVSI) the capacitor voltage is higher than input voltage,it makes the current stress too high,so the voltage boost ability is suppressed.For this reason the topological structure of a novel double Z-source voltage source inverter(DZVSI) is proposed.The working conditions of the novel DZVSI are analyzed and the relations among component voltages are derived.In novel DZVSI the power switches are modulated by improved pulse-width modulation(IPWM),and the current st... |
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| Keywords: | power electronic technology double Z-source voltage source inverter(DZVSI) improved pulse-width modulation(IPWM) current stress |
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