Monitoring device, monitoring method for photovoltaic string, and readable storage medium

Abstract

The invention discloses a monitoring method, a monitoring device and a readable storage medium for a photovoltaic group string. The monitoring method for a photovoltaic group string includes the following steps: acquiring a voltage value detected by a voltage sensor; When the voltage value is less than the preset voltage value, the first switch unit is closed; the first current value detected by the first current sensor is obtained; when the first current value is less than the first preset current value, it is determined that the photovoltaic group There is an abnormality in the string, which achieves the effect of monitoring the abnormality of the PV string.

Description

technical field [0001] The present invention relates to the field of photovoltaic technology, and in particular, to a monitoring device, a monitoring method for a photovoltaic string, and a readable storage medium. Background technique [0002] Existing photovoltaic power stations are generally built in remote areas, and there is no special person responsible for daily management, resulting in poor safety of photovoltaic modules, and when photovoltaic modules are abnormal (such as failure, theft, etc.), the photovoltaic power generation system cannot be timely. Knowing the details of the PV string will lead to abnormal power generation for a long time, resulting in power generation loss, thus affecting the power generation of the photovoltaic power generation system. [0003] The above content is only used to assist the understanding of the technical solutions of the present invention, and does not mean that the above content is the prior art. SUMMARY OF THE INVENTION [...

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Problems solved by technology

[0002] Existing photovoltaic power stations are generally built in remote areas, and there is no special person responsible for daily management, resulting in poor security of photovoltaic modules, and when photovoltaic modules are abnormal (such as failure, theft, etc.), the photovoltaic power generation system cannot be timely Knowing the details of the photovoltaic strings will lead to abnormal power generation for a long time, resulting in loss of power generation, which will affect the power generation of the photovoltaic power generation system

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