On-site testing system for electricity generation performance of large-scale ground photovoltaic power station

Abstract

The invention relates to technical field of electricity generation performance detection of a photovoltaic power station, particularly to an on-site testing system for performing on-site detection on similar equipment of a large-scale ground photovoltaic power station at the same time by adopting a main control analysis module and various levels of equipment detection modules with quite high consistency; a data wireless transmission technology is adopted; the detected data is transmitted to the main control analysis module; defective equipment of the power station is screened out by a comparison exclusive method; and therefore, the problems of the equipment are solved and the electricity generation energy efficiency of the power station is improved. The on-site testing system comprises a main control analysis module and a detection module, wherein the main control analysis module is connected with an inverter detection module, a combiner box detection module, a string detection module and an assembly detection module separately in a wireless manner; the detection module consists of a pincer-shaped current detection module, a wireless communication module and a control module, and is the general term of four levels of equipment detection modules; and each level of the equipment detection module comprises multiple detection modules. The on-site testing system has the advantages of relatively high measurement precision, high stability, high consistency, capability of realizing on-site synchronous online detection, capability of detecting assemblies, strings, combiner boxes, and inverters, and capability of detecting different levels hierarchically.

Description

Technical field [0001] The invention relates to the technical field of detection of on-site power generation performance of photovoltaic power stations, especially adopting a main control analysis module and a detection module of all levels of equipment with good consistency to conduct on-site detection of similar equipment in large-scale ground photovoltaic power stations at the same time, and the detection range involves components, assemblies Strings, combiner boxes, and inverters can be inspected at different levels and levels, and use the comparison and elimination method to screen out defective equipment in the power station, solve equipment problems, and improve the power generation energy efficiency of the power station. Background technique [0002] With the increasingly prominent energy crisis and environmental pollution problems, and the increasingly mature photovoltaic power generation technology, national policies have vigorously supported photovoltaic power gene...

AI Technical Summary

Problems solved by technology

However, the detection modules that come with these devices are only auxiliary functions of their main functions, and the accuracy is not high. After the equipment has been running for a long time, some modules have deviations, and even a large number of modules and communication lines have been damaged, resulting in failure of the automatic monitoring system. The data or the resulting data cannot be used directly

[0004] These problems are obstacles to the operation and maintenance management of photovoltaic power plants, power plant performance improvement, and power plant revenue improvement. Therefore, it is necessary to invent a new system to solve these problems

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