项目名称： 单级可升压逆变电路拓扑形成理论和电抗源逆变电路关键技术研究

项目编号： No.51477079

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 电工技术

项目作者： 丁新平

作者单位： 青岛理工大学

项目金额： 82万元

中文摘要： 单级可升压逆变电路（SSBI）具有高效、安全和电压任意可调的优点，适合于分布式发电系统的电能转换和管理。现有SSBI的提出和研究都是单独、孤立地进行,如阻抗源逆变器（ZSI）。没有文献对SSBI拓扑形成理论做深入研究，造成SSBI电路的形成缺乏理论依据。本课题拟从SSBI电路共有特性出发，研究其拓扑内涵，提出SSBI的统一拓扑：电抗源逆变电路（XSI）。揭示不同SSBI的内在联系和拓扑共性，研究SSBI的统一工作原理，提出形成SSBI的推演方法，为不同SSBI的形成提供理论依据和方法参考，对电路拓扑学做了有益的尝试和补充；直通造成的开关损耗、电压过冲和振铃及EMI干扰是SSBI的共有缺点。本课题拟应用所提SSBI拓扑形成理论和软开关理论，推演出高性能绿色SSBI电路。预研究结果表明，软开关型SSBI能够大幅改善系统损耗和EMI环境，为新型高效绿色SSBI的发现提供理论依据和研究方向。

中文关键词： 电力电子技术；并网逆变器；能量管理；分布式发电

英文摘要： Single-Stage Boost Inverter (SSBI) is suitable for power conversion and management of distributed power generation systems due to its advantages such as high efficiency, safety and adjustable voltage.However, the proposal and research regarding existing SSBI are conducted separately and individually, such as the impedance-source inverter (ZSI). Current literatures do not deeply investigate the theory of topology formation of SSBI, thus it results in a lack of theoretical basis. Based on the common features of the SSBI circuit, this study investigates its topological connotation, and proposes a SSBI Unified Topology-Reactive Source Inverter(XSI). Furthermore, the research highlights the inherent relationship and topological commonalities of different SSBI, investigates the unified working principle of SSBI, and proposes two deductive methods for SSBI formation. The result provides theoretical basis and methodological references for formation of different SSBIs, and makes a commendable attempt and useful supplement for circuit topology. There are some common drawbacks of SSBI due to the shoot-through state, such as switching loss, resonance, and EMI interference. Thus, the study aims to apply the proposed SSBI topology formation theory and soft switching theory to obtain a high-performance green SSBI circuit. Pre-study results show a significant improvement of soft switching SSBI in terms of system loss and EMI environment; these results provide theoretical basis and move the research towards the definition of new high-efficient green SSBI.

英文关键词： power electronics;inverter;power management;distributed generation