| 一种基于ON/OFF控制的太阳能电池MPPT控制器 |
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| 引用本文： | 张春龙,廖志凌,刘国海.一种基于ON/OFF控制的太阳能电池MPPT控制器[J].电测与仪表,2009,46(5). |
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| 作者姓名： | 张春龙 廖志凌 刘国海 |
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| 作者单位： | 1. 南通职业大学,电子工程系,江苏,南通,226007
2. 江苏大学,电气信息工程学院,江苏,镇江,212013 |
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| 摘 要： | 在太阳能光伏发电系统中,为了降低系统造价并提高对太阳能的利用率,一般需要实现最大功率点跟踪.本文通过分析太阳能电池的功率-电流(P-I)特性曲线,提出了一种新的利用硬件电路来实现最大功率点跟踪的方法.与以往跟踪方法不同,该方法简单实用,仅需采样太阳能电池的输出电流和电压,通过比较其输出电流的变化率和输出功率的变化率,基于ON/OFF控制太阳能电池输出端电容的充放电,使其输出电流(或电压)达到最大功率点电流(或电压),实现了真正意义上的MPPT.以Buck DC/DC变换器为例,通过仿真和实验验证了理论分析的正确性.
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| 关 键 词： | 硅太阳能电池 最大功率点跟踪 模拟电路 光伏系统 |
A Novel Maximum Power Point Tracker for Solar Cells Based on ON/OFF Control |
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| ZHANG Chun-long,LIAO Zhi-ling,LIU Guo-hai.A Novel Maximum Power Point Tracker for Solar Cells Based on ON/OFF Control[J].Electrical Measurement & Instrumentation,2009,46(5). |
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| Authors: | ZHANG Chun-long LIAO Zhi-ling LIU Guo-hai |
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| Affiliation: | ZHANG Chun-long1,LIAO Zhi-ling2,LIU Guo-hai2(1.Department of Electronic Engineering,Nantong Vocational College,Nantong 226007,Jiangsu,China.2.School of Electrical , Information,Jiangsu University,Zhenjiang 212013,China) |
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| Abstract: | In order to cut down the cost of photovoltaic system and make full use of solar energy,maximum power point tracking(MPPT) method is generally carried out.In this paper,a novel analog control strategy of MPPT is proposed by analyzing the power-curren(tP-I)curve based on Perturb & Observe MPPT method.Different from other MPPT methods,this method is very simple and practical because it only samples the output current and voltage of solar cell,and controls charge and discharge of the capacitor connected in outp... |
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| Keywords: | silicon solar cell MPPT analog circuitry photovoltaic system |
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