本文提出透過智慧型手機App (Application 稱為應用)程式的創新設計以及變流器輸出電流的 控制，實現併網型太陽光電發電系統之電力調度。其中有效功率的調度是由太陽光電發電系統裝 置用戶內部的控制系統，依最大功率點追蹤方式來直接進行，而無效功率的調度則透過配電(或電 力)系統的區域虛功調度中心來下達指令，且以智慧型手機採無線通訊方式傳遞至太陽光電發電系 統裝置用戶端來進行控制。文中首先利用太陽能板(或感測電池)最大功率點電壓與其開路電壓為 線性關係，由此藉由感測電池開路電壓之量測，來完成太陽能板最大功率點電壓之決定。太陽能 板實際工作電壓與此電壓比較，PV (Photovoltaic 稱為光伏)系統採電壓控制方式，針對變流器輸 出電流進行調幅操作，調控太陽能板之增載或減載程序，促使系統進入最大功率點下工作。一種 取得變流器輸出電流虛部成份的方法於文中提出。區域虛功調度中心參考PV 發電系統傳來的最 大功率輸出量，決定所要注入市電系統的虛功調度量且將它回傳予PV 系統裝置用戶，PV 系統依 此換算取得注入市電系統的無效電流調度量。此無效電流調度量與變流器實際輸出電流虛部成份 比較以進行變流器輸出電流的調相操作，此加或減調相量的調變，可促使變流器輸出電流的虛部 成份完全補償所需之無效電流調度量，實現無效功率的調度。所提的電力調度方式，其控制方法 簡單，易實現，具創新概念。

The power dispatch on a grid-connected Photovoltaic (PV) generation system through Application (App) Inventors and current controls on the inverter is proposed in this paper. Wherein, the active power dispatch is performed directly by the control system in the PV generation system, based on the maximum power point tracking (MPPT). The reactive power dispatch is conducted by the local reactive power dispatch center (RPDC) through smartphones to transmit the dispatch command via wireless communications to PV generation systems. Firstly, the linear relationship between the maximum power point (MPP) voltage and the open-circuit one in the solar panel (or sensing cells) is used in the paper. And then, the MPP voltage of the solar panel can be determined by the measured open-loop voltage of the sensing cell. The real-time operating voltage is compared with the determined MPP one on the PV panel. Taking a voltage control on the PV system, the amplitude modulation is conducted on the output current of an inverter. The system will fall into the MPP operation through a load increased or decreased process in the solar panel. One way taking the image part of the inverter current will be suggested in the paper. After referring to the maximum power output from the PV power generation system, the RPDC determines the reactive power dispatched, to be injected into the utility power system, and the reactive power command for dispatch is delivered inversely to PV generation systems. When the PV generation system receives this dispatched requirement from the RPDC, converts it to an equivalent reactive current dispatched into the utility power system. The equivalent reactive current for dispatch compares with the image part of inverter currents, and then a plus or a minus phase modulation is conducted continuously. Consequently, the equivalent reactive current for dispatch can be compensated completely by the image part of inverter currents. Therefore, the reactive power dispatch for systems will be implemented. The proposed approach for power dispatch is simple and easy to implement, and possesses an innovative concept.