A method and system for early warning of faults in operating units of large-scale energy storage power stations
An energy storage unit and fault warning technology, applied in the field of electric energy storage
Active Publication Date: 2022-04-15
CHINA ELECTRIC POWER RES INST +5
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Problems solved by technology
[0004] The technical solution of the present invention provides a method and system for early warning of faults in the operation units of large-scale energy storage power stations, so as to solve the problem of how to carry out early warning of faults in the operation units of large-scale energy storage power stations
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[0040] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.
[0041] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...
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The invention discloses a method and system for early warning of faults in operation units of large-scale energy storage power stations, wherein the method includes: collecting discharge data of energy storage batteries as reference historical data; The operating state parameter data of the energy storage unit included in the system; construct an analysis model of importance, analyze the correlation degree between the energy storage subsystem and the total energy storage system, and determine the importance factor of each energy storage subsystem; analyze the energy storage unit The degree of correlation with the energy storage subsystem determines the importance factor of each energy storage unit; select the energy storage subsystem and energy storage unit whose importance factor is greater than the preset threshold, and combine the operation of the energy storage subsystem and energy storage unit State parameter data and reference historical data are analyzed by the long-term and short-term prediction neural network to obtain the prediction result of the next time unit; when the deviation between the prediction result of the energy storage subsystem and the energy storage unit and the reference historical data is greater than the preset threshold, a Failure warning.
Description
technical field [0001] The present invention relates to the technical field of electric power storage, and more specifically, to a method and system for early warning of faults in operation units of large-scale energy storage power stations. Background technique [0002] Energy storage technology is an important part of the energy system in the new era, and it is also a key technology to support the integration of new energy into the grid. China's energy storage industry started relatively late, but it is developing very fast. At present, domestic energy storage technology is actively exploring the commercial application of energy storage under different scenarios, technologies, scales and technical routes in demonstration applications, and at the same time standardizes relevant standards and testing systems. From 2016 to 2017, my country's planned and under-construction energy storage scale was nearly 1.6GW, accounting for 34% of the global planned and under-construction s...
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IPC IPC(8): H02J3/32
CPCH02J3/32
Inventor 徐进祁万年李相俊许格健惠东刘超群贾学翠甘嘉田王上行许守平吕成渊
Owner CHINA ELECTRIC POWER RES INST