反激式逆变器控制策略研究  

RESEARCH ON CONTROL STRATEGY OF FLYBACK INVERTER

作　　者：吴东旭 徐爽 周京华[1] Wu Dongxu;Xu Shuang;Zhou Jinghua(College of Electrical and Control Engineering,North China University of Technology,Beijing 100144,China)

机构地区：[1]北方工业大学电气与控制工程学院,北京100144

出　　处：《太阳能学报》2024年第11期247-257,共11页Acta Energiae Solaris Sinica

基　　金：国家重点研发计划(2021YFE0103800)。

摘　　要：针对以往文献中缺乏系统精确的数学模型、谐波含量大、功率传输低等问题,使用两种不同方法详细推导反激式逆变器三阶、四阶数学模型,提出一种应用于反激式逆变器的极点配置控制方法。通过改变极点位置,对逆变器进行性能优化,优化设计的主要目的是给电网提供更优的电能质量,使其具有更强的鲁棒性。推导临界占空比,详细分析逆变器工作原理,最终在仿真中验证所提出方法的正确性。Aiming at the problems of lack of precise mathematical model of system,high harmonic content and low power transmission in previous literature,this paper deduces the third-order and fourth-order mathematical model of Flyback inverter in detail by using two different methods,and proposes a pole assignment control method applied to Flyback inverter.By changing the pole position,the performance of inverter is optimized.The main purpose of optimization design is to provide better power quality to the power grid,so that it has stronger robustness.The critical duty cycle is derived,the working principle of the inverter is analyzed in detail,and the correctness of the proposed method is verified in the simulation.

关 键 词：光伏 电流控制 逆变器 高频变压器 极点配置 可再生能源 分布式发电 

分 类 号：TM464[电气工程—电器]