摘要
通过对太阳电池组件平面辐照、太阳电池组件特性以及蓄电池负载数学模型计算,分别对北京和广州地区两种典型气候条件下应用MPPT与直接耦合方式的输出情况进行比较和研究,发现在广州地区MPPT的应用意义不大,而在北京地区冬季则能够明显增加太阳电池组件的输出。在带蓄电池的光伏系统中影响MPPT控制器发挥效能的因素被分析和研究,要综合当地全年气温变化、负载状况、经济性以及可靠性等多方面考虑MPPT的应用。
In the photovoltaic system with storage battery, when MPVr （maxium power point tracking）was used to enhance output for battery charging, the enhancement must be greater than the internal efficiency of the device itself, or there will lye no net gain at all. Solar module output performance between MPPT and battery directly coupled system for the typical climate of Beijing and Guangzhou in China were compared and analyzed with the mathematic models of PV module, storage battery and models for the estimating the hourly irradiation on the module slope plane, it was found that effect of MPVT at Guangzhou was not very obvious, however, in Beijing MPPT can largefly enhance the output of the PV modules in the winter. The factor influencing the usage of controller with MPVr was analyzed and discussed. The result show that the using MPPT must consider annual temperature change, load status, economy and reliability in all together.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2006年第12期1196-1201,共6页
Acta Energiae Solaris Sinica
基金
2004年国家十五攻关项目(2004BA411A092004BA411A19)
关键词
光伏系统
蓄电池
最大功率跟踪
匹配性能
photovohaic system
storage battery
MPPF
matching performance
