并联型单开关管光伏组件优化器的研究与设计

doi:10.19595/j.cnki.1000-6753.tces.160994

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Abstract In photovoltaic (PV) generation system, the feature mismatch caused by partial shadow effect is a critical problem that leads to the decline of output power of PV panels. Traditional solutions mainly focus on the mismatch among PV panels. Those methods adopt DC-DC converters to perform distributed MPPT for each PV panel while the original system connecting structure has been changed. In this paper, a novel PV parallel optimization method for mismatch problem inside a PV panel is proposed. The optimization method can compensate the unbalanced parts inside PV panel without changing the original panel connection structure. In this paper, the principle of the optimization method is analyzed, and the circuit is implemented by single-switch multi-winding flyback topology. The simulation and experimental results show that the proposed circuit can increase the output power of PV panel under partial shadow condition.

Key words： Distributed PV generation partial shadow problem panel-integrated PV optimizer partial power conversion

Published: 16 January 2018

PACS:

TM615

Fund:国家自然科学基金（61174157,51577170）和光宝电力电子技术科研基金资助项目

Corresponding Authors: 吴建德男,1973年生,博士,副研究员,主要研究方向为电力电子电路数字控制技术、分布式系统设计、现场总线、电力线载波通信。E-mail: w94780101@126.com

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	Articles by authors
	Du Jin
	Wang Reichi
	Wang Zhikun
	Wu Jiande
	He Xiangning

Cite this article:

Du Jin,Wang Reichi,Wang Zhikun等. Design and Analysis of a Parallel Single-Switch Panel-Integrated PV Optimizer[J]. Transactions of China Electrotechnical Society, 2017, 32(24): 184-192.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.160994 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I24/184

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