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反激式微逆集群并网谐波交互性能对比研究 预览

Comparisons of Harmonic Interactions Due to Integrated Flyback Micro-Inverters
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摘要 采用小信号法建立了电流反馈控制型及准谐振峰值电流控制型反激式微型逆变器的诺顿等效模型,并提出了并网谐波交互机理的分析方法。基于该诺顿等效模型,分析了两种反激式微型逆变器的并网谐波交互情况,研究了两种逆变器集群并网时的抗谐波交互能力以及集群的并网谐波交互性能。揭示了准谐振峰值电流控制型反激式微型逆变器具有比电流反馈控制型反激式微型逆变器更窄的谐振频带,从而使得前者比后者具备更强的抗谐波交互能力。最后在理论分析和仿真、实验基础上,设计了2台250 W样机进行机理性的实验验证。 Harmonic interactions among multiple current feedback controlled flyback microinverters and multiple quasi-resonant peak current controlled flyback micro-inverters are studied respectively. Small signal analysis is adopted to obtain the Norton equivalent model of the two kinds of flyback micro-inverters. The resonant mechanism and harmonic interaction analysis methods are introduced. Based on the derived Norton equivalent model, harmonic interactions among multiple the inverters are analyzed and compared, and it discloses that the resonant bandwidth of peak current control is more narrow than that of current feedback control, which means that the former has better damping harmonic interactions performance than the later. Finally theoretical analysis, simulations and experiments have been carried out in respectively, and the two sets of 250 W prototype are designed for experimental verification.
作者 冯夏云 汪飞 吴春华 杜燕 苏建徽 Feng Xiayun1, Wang Fei1,Wu Chunhua1,Du Yan2,Su Jianhui2 (1. Shanghai Key Laboratory of Power Station Automation Technology Department of Automation Shanghai University Shanghai 200072 China; 2. Research Center for Photovoltaic Systems Engineering of Ministry of Education School of Electrical Engineering and Automation Hefei University of Technology Hefei 230009 China)
出处 《电工技术学报》 CSCD 北大核心 2018年第11期2554-2563,共10页 Transactions of China Electrotechnical Society
基金 国家自然科学基金项目(51577113,51407057) 台达环境教育基金项目(DREM2015002)资助
关键词 电流反馈控制型 准谐振峰值电流控制型 反激式微型逆变器 诺顿等效模型 Current feedback control quasi-resonant peak current control flyback micro-inverter Norton equivalent model
作者简介 冯夏云,男,1991年生,博士研究生,研究方向为微电网稳定性分析等.E-mail:Arthur@shu.edu.cn;汪飞,男,1981年生,副教授,博士,研究方向为微电网建模仿真等.E-mail:f.wang@shu.edu.cn(通信作者)
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