高聚光型太陽光導照明系統為目前極具潛力的自然採光技術，透過聚光模組將大面積的日照集中，並導入光纖系統以供室內照明使用，能有效提升光導效率並減少對人工照明的依賴。然而，聚光型光導系統對太陽入射光的角度極為敏感，當入射角產生偏差時，將嚴重影響聚光效率與導光表現。 為提升聚光導光效能並降低入射角偏差，本研究採用太陽軌跡追蹤法結合擾動法，控制雙軸追日系統以精確對準太陽位置，並透過光感測器即時回饋偏差訊號。實驗結果驗證，所提出之追日方法可有效提升追日精度，穩定維持聚光在最佳入射角度，進而增進光纖照明效能與日光利用率。 ;The high-concentration solar light-guiding system is a highly promising natural lighting technology. By utilizing a concentrator module to gather a large area of sunlight and channel it through an optical fiber system for indoor illumination, this approach effectively enhances light-guiding efficiency and reduces reliance on artificial lighting. However, such systems are highly sensitive to the incident angle of sunlight; even slight deviations can significantly degrade both concentration efficiency and light transmission performance. To improve the effectiveness of light concentration and minimize incident angle deviation, this study adopts a dual-axis solar tracking system that integrates solar trajectory prediction with a perturbation-based correction method. The system uses solar position algorithms to estimate the sun’s path and employs light sensors to provide real-time feedback for fine adjustments. Experimental results demonstrate that the proposed tracking method significantly enhances tracking accuracy, maintains optimal incident angles for concentration, and thereby improves the overall performance and utilization efficiency of fiber-optic daylighting.
