本研究研發一實功率及虛功率可遠程調度之併網型光伏發電系統，此系統被賦予最大功率點、指定實功率及指定虛功率之遠程調度能力。透過智慧型手機App程式的設計以及變流器輸出電流的控制，調度人員可對併網型光伏發電系統進行遠端的電力調度，由此因應系統電力的供需平衡。電力調度員發送之指令是以智慧型手機採無線通訊網路方式來傳遞。研究過程中藉由感測電池短路電流的量測，以及運用太陽能板產生最大功率下之電流與其短路電流為線性關係來決定最大功率點電流，之後，透過變流器調控注入市電電流的振幅，促使太陽能板於增載與減載過程中逐漸地趨近於最大功率點下來工作。另外，透過變流器調控注入市電系統的有效電流與無效電流，藉此進行注入市電實功率與虛功率的調控作業。建立一實驗性的小型併網型光伏發電系統來進行驗證，經由實測，調度結果中顯示所欲指定實功率/指定虛功率與實際注入市電的實功率/虛功率之間的絕對誤差在5%內、PV發電系統的最大功率點調度運作功能正常發揮，以及透過手機App程式設計進行無線通訊傳輸與控制，確實能完成最大功率點、指定實功率及指定虛功率的遠程調度工作。所研發的實功率與虛功率可遠程調度的併網型光伏發電系統，其控制方法簡單，易實現，具創新設計概念。

This research develops a grid-connected photovoltaic (PV) generation system with active power and reactive power that can be remotely dispatched. The PV generation system will be dispatched and can operate at the maximum power point (MPP) or at a specified active power and operate at an assigned reactive power. Through the design of smart phone Apps and the control of the output current of the inverter, the dispatcher remotely dispatches a grid-connected PV generation system that can be desired in response to the balance of power supply and demand in the system. The instructions sent by the power dispatcher are transmitted by the smart phone using the wireless communication network. In the research process, the maximum power point (MPP) current was determined by measuring the short-circuit current of the sensing cell and applying the linear relationship between the MPP current and the short-circuit current of the solar panel. After that, the amplitude of the injected current into power system is adjusted through the inverter, and then the operation of the solar panel will be gradually brought closer to the maximum power point during the load-increasing and load-shedding process. In addition, the effective current and the ineffective current injected into the power system will be also controlled through the inverter, so as to carry out the dispatching operation for injecting the active power and the reactive power into the utility power system. An experimental small-scale grid-connected PV generation system is established for verification. Through the actual measurement, the dispatching result shows that the absolute error between the desired specified active power/assigned reactive power and the active power/reactive power injected into the utility power system is within 5%, the MPP dispatching operation of the PV power generation system can also function normally, and taking the wireless communication network to transmit and to control through the smartphone Apps designs can indeed complete the remote dispatching work of the maximum power point, the specified active power and the assigned reactive power. The control of the developed grid-connected PV generation system with the capability to remotely dispatch active power and reactive power is simple and easy to implement, and possesses an innovative design concept.