Ni-MH batteries and EDLCs hybrid stand-alone photovoltaic power system for digital access equipment

被引:0
|
作者
Akiyama, Kazuya [1 ]
Nozaki, Yousuke [1 ]
Kudo, Mitsuru [1 ]
Yachi, Toshiaki [1 ]
机构
[1] NTT Telecommunications Energy Lab, Tokyo, Japan
关键词
Capacitors - Charging (batteries) - Data communication equipment - Electric currents - Electric potential - Installation - Monitoring - Photovoltaic cells - Secondary batteries;
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摘要
We propose a hybrid stand-alone photovoltaic power system with cylindrical photovoltaic (PV) modules that uses nickel-metal hydride (NMH) batteries and electric double layer capacitors (EDLCs). This system is a potential power source for digital access equipment. The battery volume and weight can be reduced to about half those of a conventional PV power system and the installation area can be reduced to about one-tenth. This paper describes the system configuration charging control technique for the Ni-MH batteries using the EDLCs, and the Ni-MH battery monitoring method. It also introduces a prototype PV power system. Experimental results show that this prototype system can operate with the desired control and monitoring characteristics.
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页码:387 / 393
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