| Summary: | 碩士 === 清雲科技大學 === 電機工程所 === 99 === This thesis estimates the system efficiency of photovoltaic systems using monitoring data and simulation software. First, the Solar Pro software was used to analysis 10kWp monocrystalline silicon photovoltaic generation system at Ching Yun University. Comparing the difference between monitoring data and simulation results to do correction for improve system performance. Second, same climate parameters were adapted to analysis 2.04kWp amorphous silicon thin film photovoltaic generation system. Explore and analyze the two sets of photovoltaic system generating power per kWp, per day and performance ration to enhance the system efficiency. By the results, the performance ration of monocrystalline silicon photovoltaic is more stable. The amorphous silicon thin film between 500W/m² to 700W/m² irradiation, the DC power ratio will be higher.
In this thesis, the reliable measurement system was designed for photovoltaic system. A set of networked digital measurement system was proposed to enhance the reliability and integrity for photovoltaic measurement system. The program was written by Visual Basic software with windows operating environment to easily monitor and analyze the amount of electricity. The data integrity of the monitoring data can be used for government policy planning, research and academic system improvement.
Finally, the tilt angle and the array spacing of photovoltaic system were analyzed for obtain the best output power in the regular area. The simulation results show that the tilt angle of photovoltaic generating system was set to about 20° is better in northern Taiwan. If the space is spacious, it can be appropriate to enlarge the array spacing to increase system performance. Results of this study could use to system design, planning and performance evaluation for photovoltaic generation system.
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