Inverter efficiency information deriving device and method

An inverter and efficiency technology, which is applied in the inverter efficiency information deriving device and field

Pending Publication Date: 2022-04-15
T E F CO LTD
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  • Abstract
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  • Inverter efficiency information deriving device and method
  • Inverter efficiency information deriving device and method
  • Inverter efficiency information deriving device and method

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[0028] Hereinafter, the present disclosure will be described in detail with reference to the drawings.

[0029] Terms used in this specification will be briefly explained, and the present disclosure will be specifically explained.

[0030] In consideration of the functions in the present disclosure, the terms used in the embodiments of the present disclosure use general terms widely used at present as much as possible, but may be different due to intentions of those skilled in the art or precedents, emergence of new technologies, and the like. In addition, in specific cases, it may also be a term chosen by the applicant arbitrarily, and in this case, its meaning will be described in detail in the explanatory part of the corresponding disclosure. Therefore, the terms used in the present disclosure should be defined based on the meaning of the terms and the content of the present disclosure, rather than a simple name of the terms.

[0031] In this specification, expressions suc...

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Abstract

According to one disclosure, the present invention can provide an inverter efficiency information deriving method for deriving inverter efficiency information in solar power generation using a linear regression model, comprising the steps of: acquiring a plurality of meteorological elements from a sensor unit in a solar power generation system at a predetermined cycle, and acquiring inverter state information from an inverter; for the state information of the inverter, selecting a meteorological element capable of modeling the efficiency of the inverter as a first parameter according to a linear analysis result of each of a plurality of meteorological elements; generating a linear regression model by using the linear correlation between the first parameter and the inverter state information; according to a modeling result obtained by utilizing the linear regression model, calculating a residual error based on inverter efficiency analysis, and setting a judgment threshold value as a reference value for judging the efficiency of the inverter; and predicting the abnormal condition of the solar power generation system by using the judgment threshold value and the residual error.

Description

technical field [0001] According to a disclosure, the present invention provides a device and method for deriving inverter efficiency information, which uses a linear regression model generated based on various factors obtained in solar power generation to derive inverter efficiency information, and uses the derived inverter Efficiency information to run solar power efficiently. Background technique [0002] Renewable energy (Renewable energy) power generation has attracted worldwide attention. As one of the new renewable energy sources, the photovoltaic industry continues to grow, and the number of photovoltaic power generation systems (Photovoltaic System) continues to increase. In terms of policy, the South Korean government will prioritize the installation of photovoltaic power generation systems (PVsystem) on unused sites (Unused Sites) such as roofs of buildings and parking lots. And, the number of installations is gradually increasing. Therefore, attention to photov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20H02J3/00
CPCY02E10/50Y02A90/10Y04S10/50
Inventor 洪锡训全载成崔荣珉朴哲永林秀昶张柏珊
Owner T E F CO LTD
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