Design of Photovoltaic Charging System with Human Machine Interface
碩士 === 國立虎尾科技大學 === 機械與機電工程研究所 === 102 === This thesis presented a Human Machine Interface (HMI) of lead-acid battery charger for photovoltaic power system. Because the solar energy power was affected by environment and we had to prevent an overcharge of lead-acid battery, we had to design a charg...
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| Format: | Others |
| Language: | zh-TW |
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2014
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| Online Access: | http://ndltd.ncl.edu.tw/handle/yzkh25 |
| Summary: | 碩士 === 國立虎尾科技大學 === 機械與機電工程研究所 === 102 === This thesis presented a Human Machine Interface (HMI) of lead-acid battery charger for photovoltaic power system. Because the solar energy power was affected by environment and we had to prevent an overcharge of lead-acid battery, we had to design a charging system including HMI to monitor the charging current and charging voltage of lead-acid battery.
In this thesis, we designed the program graphically by using LabVIEW software. The software is combined with Data Acquisition (DAQ) which can present available I/O channels and operate the project items.
By using HMI, we can monitor the state of charging at all time. The duty-cycle is determined by the lead-acid battery temperature, charging current and terminal potential. The protection of lead-acid battery is reached by controlling the DC-DC Buck/Boost converter.
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