一種新型光伏微型逆變器系統(tǒng)的研究
車福來,張曉光
保定天威集團(tuán)有限公司 電工技術(shù)研究所,河北 保定 071056
摘 要:設(shè)計(jì)了一種新型光伏微型逆變器系統(tǒng),給出了硬件結(jié)構(gòu)及軟件設(shè)計(jì),主控制部分采用冗余結(jié)構(gòu),在主芯片出現(xiàn)故障時(shí),可切換到備用芯片運(yùn)行。對(duì)225W實(shí)驗(yàn)樣機(jī)的測試結(jié)果表明,該系統(tǒng)控制性能穩(wěn)定,效率較高且電路簡單,成本較低,具有工程應(yīng)用價(jià)值。
關(guān)鍵詞:光伏微型逆變器;冗余系統(tǒng);最大功率點(diǎn)跟蹤;孤島檢測
中圖分類號(hào):TM464 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1007-3175(2013)02-0010-03
Research on a New Type of Photovoltaic Micro-Inverter System
CHE Fu-lai, ZHANG Xiao-guang
EET Institute of Baoding Tianwei Group Co., Ltd, Baoding 071056, China
Abstract: This paper designed a new type of photovoltaic micro-inverter system, giving the hardware structure and software design. The main control section adopted the redundant structure, being able to switch to the spare chip’s running at the time of the failure of main chip. The testing result of 225 W experiment prototype shows that the system has stable control performance, high efficiency, simple circuit and low cost with application value of engineering.
Key words: photovoltaic micro-inverter; redundant system; maximum power point tracking; islanding detection
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