Photovoltaic power generation system operation state evaluation method and system for multiple time windows

A photovoltaic power generation system and operating state technology, applied in information technology support systems, data processing applications, instruments, etc., can solve problems that affect the safety and stability of grid connection and power supply reliability, reduce the overall efficiency of distributed photovoltaic power generation systems, and cannot be timely. Identify system failures and other issues

Active Publication Date: 2021-03-09
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the operating status of the distributed photovoltaic power generation system cannot be accurately grasped, system failures cannot be detected in time and system operation can be reasonably scheduled, thereby reducing the overall efficiency of the distributed photovoltaic power generation system and affecting the safety, stability and power supply of the distributed photovoltaic power generation system. reliability

Method used

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  • Photovoltaic power generation system operation state evaluation method and system for multiple time windows
  • Photovoltaic power generation system operation state evaluation method and system for multiple time windows
  • Photovoltaic power generation system operation state evaluation method and system for multiple time windows

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Embodiment 1

[0037] This embodiment discloses a method for evaluating the operating state of a photovoltaic power generation system for multiple time windows, which solves the problem of realizing comprehensive and accurate evaluation of the operating state of the photovoltaic power generation system. A more comprehensive and accurate understanding of the operating status of the photovoltaic power generation system.

[0038] See attached figure 1 As shown, the above method includes an online data processing process and an online evaluation process. The online data processing process includes steps such as feature extraction, multi-time window normalization, and unified dimension establishment of real-time data collection; the online evaluation process includes start evaluation, online evaluation of operating status, multi-dimensional index evaluation system, evaluation method, evaluation Reporting and other steps.

[0039] The steps of the online data processing flow are:

[0040] Step ...

Embodiment 2

[0079] The purpose of this embodiment is to provide a computing device, including a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the program, the method in the first embodiment above is implemented. A step of.

Embodiment 3

[0081] The purpose of this embodiment is to provide a computer-readable storage medium.

[0082] A computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of the method in the first embodiment above are implemented.

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Abstract

The invention provides a photovoltaic power generation system operation state evaluation method for multiple time windows. The method comprises the steps of collecting signals collected by a field sensor, and carrying out feature data extraction; unifying the extracted feature data to the same time section by adopting a double-data queue algorithm based on a time window; unifying dimensions, and establishing a real-time data set; and constructing a multi-dimensional index evaluation system, and carrying out photovoltaic power generation system operation state online evaluation on the real-timedata set by adopting an association coefficient method. The method has important significance for comprehensively mastering the operation state of the distributed photovoltaic power generation system, improving the scheduling optimization and cooperative control level of the distributed photovoltaic power generation system and guaranteeing the safety and stability of grid connection of the distributed power generation system.

Description

technical field [0001] The disclosure belongs to the technical field of photovoltaic power generation, and in particular relates to a method and system for evaluating the operating state of a photovoltaic power generation system for multiple time windows. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Energy is the foundation of a country's economic development. With the continuous development of the global economy, conventional energy sources such as oil, natural gas, and coal can no longer meet the growing needs. The continuous development and utilization of new energy has made renewable energy more and more important. Among the many renewable energies, solar energy has become one of the most developed and utilized new energies due to its advantages of infinity, cleanliness and sustainability. . Photovoltaic power generation system, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06Y04S10/50
Inventor 李广磊王玥娇孙树敏徐征袁森程艳张兴友于芃王士柏滕玮魏大钧王楠邢家维
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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