針對三相併網型太陽光電發電系統，本文提出感測電池法實現其最大功率點的追蹤。發電用的太陽能板，其最大功率點電壓之決定是透過感測電池開路電壓之量測來達成。由於太陽能板產生最大功率點之電壓與其開路電壓為線性關係以及感測電池與發電用的太陽能板具相同的週遭環境與電氣參數關係，因此藉由太陽能板的電壓控制方式，太陽能板工作電壓將可自行調整至最大功率點，由此獲致最大功率發電效果。實作結果顯示本研究方法確實可實現太陽能板的最大功率點追蹤以及獲致系統被賦予的性能要求。所提出的感測電池法具簡單易實現特點。

A sensing cell based maximum power point tracking (MPPT) for three-phase grid-connected photovoltaic generation systems is suggested in this paper. The maximum power point (MPP) voltage of a solar panel in the PV generation systems can be determined from sensing the open-circuit voltage of a sensing cell. Based on the linear relationship between the MPP voltage and the open-circuit one in the solar panel (or in the sensing cell), and adding the same surrounding environment and the identically electrical parameters for the solar panel and the sensing cell, the operating voltage of a solar panel under any operating condition can be tuned and tracked automatically toward the maximum power point through a voltage control process for the solar panel, and then the maximum power output from the PV generation systems will be produced. The experimental tests are performed on the constructed PV generation systems. The experimental results show that the MPPT of a solar panel can be achieved by the proposed tracking method, and some required performances in the grid-connected PV generation systems can also be achieved. The introduced MPPT approach is simple and easy to implement.