Abstract
This paper presents the design and realization of data acquisition, communication and monitoring system for photovoltaic power station. The data acquisition module including filter algorithm and signal modulation circuit uses the digital signal processor (DSP) as the main processor, it can realize accurate real-time data acquisition; The data communication module uses Ethernet as communication network between PV system and MicroGrid. The gateway using ARM microprocessor can realize protocol conversion and bidirectional communication between CAN Bus and Ethernet; The monitoring unit with friendly human-machine interface keeps real-time performance monitoring of PV system to realize automation control. The results of experiment show that the system is practicable and effective.
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