| 三相光伏并网电流型PWM逆变器的研究 |
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| 引用本文： | 周东,林平,李玉玲.三相光伏并网电流型PWM逆变器的研究[J].电子技术应用,2010,36(5). |
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| 作者姓名： | 周东 林平 李玉玲 |
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| 作者单位： | 浙江大学,电气工程学院,浙江,杭州,310027 |
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| 摘 要： | 基于三相电流型PWM逆变器装置,将直接电流控制方法应用于该逆变器中,设计了一套1kW实验装置。通过仿真分析和实验验证表明,该方法不仅实现了逆变器网侧电流正弦化并与网侧电压同相位,而且实现了直流侧电压宽范围调节,提高了系统动态性能,更适合于光伏并网。
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| 关 键 词： | 光伏并网 电流型PWM逆变器 SPWM调制 单位功率因数 |
Research on the three-phase photovoltaic grid-connected current source PWM inverters |
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| ZHOU Dong,LIN Ping,LI Yu Ling.Research on the three-phase photovoltaic grid-connected current source PWM inverters[J].Application of Electronic Technique,2010,36(5). |
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| Authors: | ZHOU Dong LIN Ping LI Yu Ling |
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| Abstract: | Three-phase current PWM inverter model is established for the research and direct current control method is applied to this inverter. Through the method combined by computer simulation and experimental study, a laboratory prototype of 1 kW current source PWM inverter has been implemented and tested. Results of simulation and experiment show that this method could not only make output AC currents sinusoidal and in phase with grid voltages, but also make the input DC voltage of current source PWM inverter vary in a wide range and improve dynamic characteristic of the power system. |
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| Keywords: | photovoltaic grid-connected current source PWM inverter SPWM modulation unity power factor |
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