A Distributed Maximum Power Point Tracking Flyback Type PV Grid-connected Inverter

被引：0
|
作者：
Jiang Jiahui [1 ]
Qiu Yanhui [1 ]
Chen Daolian [1 ]
机构：
[1] Fuzhou Univ, Fujian Key Lab New Energy Generat & Power Convers, Fuzhou, Fujian, Peoples R China
来源：
IECON 2017 - 43RD ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY | 2017年
基金：
中国国家自然科学基金;
关键词：
distributed maximum power tracking; Buck chopper; Flyback type; photovoltaic grid-connected inverter; unified control; MPPT; SYSTEMS; OPTIMIZATION;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Aiming at the power loss caused by photovoltaic (PV) mismatch problem, a distributed maximum power point tracking (DMPPT) Flyback type PV grid-connected inverter and the sinusoidal pulse width modulation(SPWM) unified control strategy with DMPPT are proposed. Meanwhile, the circuit topology, operation modes and steady state relations are deeply investigated. The inverter is composed of n Buck choppers with their outputs connected in series and a Flyback type grid-connected inverter, it belongs to quasi-single-stage power conversion. The control strategy achieves the DMPPT of all PV cells and the control of grid-connected current simultaneously. Designed and implemented 500W 27-39VDC/220V50HzAC prototype has excellent performances such as high PV cell utilization efficiency, low cost, high conversion efficiency, high reliability, high quality of output waveforms, etc.
引用
收藏
页码：7713 / 7717
页数：5
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