Distributed photovoltaic power station monitoring system based on virtual and real data fusion

Abstract

The embodiment of the invention provides a distributed photovoltaic power station monitoring system based on virtual and real data fusion. The distributed photovoltaic power station monitoring system comprises a plurality of data sensors, a virtual-real fusion data subsystem, a digital domain, a communication interface and protocol conversion unit, the communication interface and protocol conversion unit is used for data communication among a physical domain, the virtual-real fusion data subsystem and the digital domain, and a data uplink information channel and a data downlink instruction channel are communicated; physical data and information data of each physical device of the distributed photovoltaic power station are collected through the virtual-real fusion data subsystem, so that the operation state synchronization of the physical model of the digital domain and each physical device of the distributed photovoltaic power station is realized. And fault analysis and control are realized through other models of the digital domain. Comprehensive real-time monitoring of the distributed photovoltaic power station and real-time identification and control of a fault state are realized; the physical model records the operation state of the physical equipment, so that virtual reproduction can be carried out for fault tracing after the fault occurs.

Description

technical field [0001] The invention relates to the field of distributed photovoltaic power plants, and more specifically, to a distributed photovoltaic power plant monitoring system based on fusion of virtual and real data. Background technique [0002] Distributed photovoltaic power plants refer to the configuration of smaller photovoltaic power supply systems at the user site or near the power consumption site to meet the needs of specific users, support the economic operation of the existing distribution network, or meet the requirements of both aspects at the same time. [0003] The basic equipment of a distributed photovoltaic power station includes photovoltaic modules, photovoltaic supports, combiner boxes, inverters, cables, and step-up transformers. Its operation mode is that under the condition of solar radiation, the photovoltaic module array converts solar energy into electrical energy and passes through the combiner box, and then the inverter converts it into a...

AI Technical Summary

Problems solved by technology

At present, distributed photovoltaic power plants have problems such as less real-time monitoring, lag in abnormal warning, lack of fault diagnosis and inaccurate defect analysis.

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