Analysis and Design of a Single-Axis Automatic Solar Tracking and Power Filtering System for Solar Power Generation

作者：Lee Yun Parn^*; Sin Hong Chen; Yau Quen Gau; Kai Der Wang; Ma Shih Hsin; Wu Jih Huah

来源：Sensor Letters, 2012, 10(5-6): 1075-1080.

DOI：10.1166/sl.2012.2265

• Single Axis Solar Tracking
• Sun-Earth Orbit Calculation
• Solar Power Concentration
• Solar Power Filtering

A solar tracker is a device that orients its payload, in this case photovoltaic panels, toward the sun. The solar panels are affected by the incident angle. In other words, when directly exposed to Sunlight, they can achieve performance of one hundred percent, however, when this angle decreases to 45 degrees, only approximately 70 percent of the incident energy is left. Therefore, we design an automatic tracking system, which, like a sunflower, always faces the sun, so that the power generation efficiency can be maintained at the highest point. Most of the existing studies have focused on mechanical and optical designs for either one, two, or three axis tracking systems. In this paper, we present the tracking mathematics of the sensors and controlling motor drive. The power filter is a very important part of a completed solar generation system. When DC is converted to AC, the system will generate harmonic noise. The incomplete sinusoidal signals are also due to harmonics and lossless power. We will re-design a power filter device to generate perfect output sinusoidal waves. In our study, we will show the completed design process, circuit diagrams and final test results.

• 出版日期2012-6