本文構建一種基于微處理器的中、小功率光伏控制系統。從硬件、軟件方面完善系統對蓄電池充放電及其負載的管理和保護。系統采用了LCD、鍵盤和異步串行通信，加強了系統的實時監控性和遠程管理，方便了對單個系統或多個互聯系統的維護和監管。本系統已運用于多個太陽能光伏產品系列，并取得滿意的效果。
關鍵詞： MCU 太陽能 光伏系統 異步串行通訊
Abstract The article provides a medium and small power photovoltaic control system based on MCU. The system perfects the management and protection for the charge and discharge of storage battery also for the load and solar power supply. The system adopts the LCD, keyboard and asynchronous serial communication to enhance the system supervision and remote management and convenience to maintain and scrutinize one unit or several systems. This system has already been made use of in several photovoltaic product series and obtains the satisfied result.
Keywords：MCU, solar energy, Photovoltaic System, asynchronous serial communication