| 摘要: | 本計畫將由中央大學與立陽公司（力鋼集團）共同建構「高性能太陽光電的追日系統」，分兩年開發雙軸太陽追蹤器，此追日系統將兼具高效能和低成本，並具相當彈性可搭配不同型式的太陽電池（矽基和三五族）來降低太陽光電(photovoltaic, PV)系統的建置成本。太陽追蹤器(solar tracker)屬於PV系統端的重要組件，搭配追蹤器可提高PV系統全年的發電轉換效益。另一利基型的PV系統為聚光型太陽光電(concentrating photovoltaic, CPV)系統，需要雙軸高精度太陽追蹤器方能發揮高轉換效率。具追日功能的PV系統適合中日照地區（台灣），而CPV系統則適合國外的高日照地區。本計畫擬分二年開發雙軸追日系統2套（第一年）搭配矽基PV，搭配CPV的雙軸追日系統2套（第二年）搭配三五族電池，安裝的PV總容量達8 kW。本計畫開發的追日系統較市售PV同級產品可大幅降低成本，CPV追日系統較同級產品可提高發電效率2%，且具有多種優點：高性能、可搭配不同型式太陽電池、追日控制有不同選擇（主/被動混合式），可做最大功率追蹤(MPPT)提昇發電功率，提高追蹤器的風負荷強度、具自動制動機構鎖死功能。本計畫所開發的追日系統將可讓國內廠商掌握PV系統的關鍵技術（追蹤精度監控、高敏度光感測元件、追日控制微處理器、短路電流量測及MPPT功能、追蹤器結構變形分析、追蹤器機構創新設計、指向誤差修正），預計衍生產品有雙軸追蹤器、追日控制器（含軟硬體）和追日感應器，這些產品的功能和成本將極具競爭性，必能開拓台灣和國外的另一個太陽光電利基市場。This project will team with Liyang company to develop the high performance of sun-tracking system for photovoltaic (PV). This two-year project aims to develop two-axis solar tracker, such sun-tracking system will feature high performance and low cost, and such system has flexibility to install different types solar cell (silicon-based and III-V) to reduce the deployment cost of PV. Silicon-based PV is still the current mainstream product and the solar tracker is one of the important components of PV system, because with tracking the silicon-based PV system can enhance the annual power output. Another niche PV is known as the concentrating photovoltaic (CPV) and two-axis high accuracy solar tracker is required to attain the high efficiency. PV system with tracking is suitable for mid-insolation region (e.g. Taiwan), while the CPV system works better at high-insolation region. This project aims to develop twp sets of two-axis tracker (second year) for assessing the performance of silicon-based PV system. Two two-axis trackers for CPV with III-V solar cell will be tested in the second year. In total, 8 kW of PV will be installed. Our PV-tracking system will reduce cost substaintially compared with similar product on current market, and CPV-tracking system will increase 2% of power conversion efficiency compared with commercial CPV-tracking system. In addition, our tracking systems will feature many advantages: high performance, works for different types of solar cell, multiple options of tracking control, MPPT for increasing power output, higher wind resistance for tracker, and auto-lock for actuating/rotating mechanism. The technologies to be developed in this project will help Taiwan company develop many key technologies (monitoring tracking accuracy, high sensitivity light sensor, micro processor for tracking, MPPT function, structure deforming analysis of tracker, innovative design of tracker mechanism and correction of pointing error) and transfer into PV products (such as two-axis solar tracker, sun-tracking controller, and sun sensor). With these products, new PV niche market share in Taiwan and world as well can be anticipated. 研究期間：10002 ~ 10101 |
