一种新型耦合电感高升压增益单级逆变电路研究

发布时间：2018-03-08 17:09

本文选题：单级可升压逆变电路　切入点：高升压增益　出处：《电工技术学报》2014年S1期 　论文类型：期刊论文

【摘要】：单级可升压逆变电路能够克服传统电压源逆变电路和电流源逆变电路的缺点,近年来得到业界的广泛关注和研究,以Z源逆变器和准Z源逆变器最为典型。该类电路能够实现单级电路的升-降压功能,LC滤波结构增强了逆变电路的安全性。但是独特的升压机理使该类电路升压能力受逆变电路调制因子M的限制而略显不足,限制了其应用场合。本文提出一种高升压增益的单级逆变电路。该电路能够克服传统单级可升压逆变电路升压能力不足的缺点,在较大的调制因子M时,能够得到较大的升压能力,适合应用于要求升压较高的逆变场合,如光伏并网、燃料电池等新能源应用系统。推导了电压的输入-输出关系,分析和研究了所提电路的工作模式和一个工作周期的工作状态。在实验室构建1k W实验样机进行验证,实验所得波形和理论分析、仿真结果非常吻合。
[Abstract]:Single-stage boost inverter circuit can overcome the shortcomings of traditional voltage source inverter circuit and current source inverter circuit, and has been widely concerned and studied in recent years. The Z-source inverter and the quasi-Z-source inverter are the most typical. This kind of circuit can realize the single-stage circuit with the function of raising and lowering voltage and LC filter structure enhances the security of the inverter circuit. But the unique boost mechanism makes the circuit boost voltage. The capacity is limited by the modulation factor M of the inverter circuit. In this paper, a single stage inverter circuit with high boost gain is proposed. The circuit can overcome the shortcoming of the traditional single stage boost inverter circuit with insufficient boost capacity, and when the modulation factor M is large, the circuit can overcome the shortcoming of the traditional single stage boost inverter circuit. The new energy application system, such as photovoltaic grid-connected, fuel cell and so on, is suitable for the application of inverter with high boost voltage. The input-output relation of voltage is deduced. The working mode of the proposed circuit and the working state of a working cycle are analyzed and studied. A 1kW experimental prototype is constructed in the laboratory for verification. The waveform obtained from the experiment is in good agreement with the theoretical analysis.
【作者单位】：青岛理工大学自动化工程学院;山东大学控制科学与工程学院;
【基金】：国家自然科学基金资助项目(51477079) 山东省自然科学基金(ZR2013EEM020) 中国博士后科学基金资助项目(2013M531598)
【分类号】：TM464

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