CN-121998435-A - Meteorological safety risk early warning method and system for heterogeneous power equipment

CN121998435ACN 121998435 ACN121998435 ACN 121998435ACN-121998435-A

Abstract

The application discloses a meteorological security risk early warning method and system for heterogeneous power equipment, and relates to the technical field of power equipment early warning, wherein the method comprises the steps of acquiring an inherent parameter set and a risk information set of the heterogeneous power equipment; the method comprises the steps of acquiring weather features corresponding to a risk information set, carrying out correlation evaluation to acquire a single weather correlation parameter set of heterogeneous power equipment, carrying out random combination to the weather features, acquiring a comprehensive weather correlation parameter set of the heterogeneous power equipment, carrying out correlation evaluation to acquire the comprehensive weather correlation parameter set of the heterogeneous power equipment, synthesizing the single weather correlation parameter set and the comprehensive weather correlation parameter set, acquiring a weather risk parameter set, training to acquire a weather early warning agent, and carrying out weather safety risk early warning. The technical problem that individual differences and multi-meteorological-factor coupling effects of heterogeneous power equipment cannot be fully considered in the prior art, so that meteorological safety risk early warning accuracy is insufficient is solved.

Inventors

LI SHEN
JIANG YUEQIANG
DU KE
LI ZHOUYAN
LI NING
Xiong cen
ZHOU JIAN
LIN MIN

Assignees

国网上海市电力公司

Dates

Publication Date: 20260508
Application Date: 20260409

Claims (10)

1. The weather safety risk early warning method for the heterogeneous power equipment is characterized by comprising the following steps of: Acquiring an inherent parameter set and a risk information set of heterogeneous power equipment; Acquiring meteorological features corresponding to the risk information set, and carrying out correlation evaluation by combining the risk information set to acquire a single meteorological correlation parameter set of the heterogeneous power equipment; Randomly combining the meteorological features to obtain comprehensive meteorological features, and carrying out correlation evaluation by combining a risk information set to obtain a comprehensive meteorological correlation parameter set of heterogeneous power equipment; And synthesizing the single weather correlation parameter set and the comprehensive weather correlation parameter set to obtain a weather risk parameter set, training and obtaining a weather early warning agent based on the inherent parameter set, the risk information set and the weather risk parameter set, and carrying out weather safety risk early warning.
2. The weather safety risk early warning method for heterogeneous power equipment according to claim 1, wherein obtaining an intrinsic parameter set and a risk information set of the heterogeneous power equipment comprises: Acquiring an intrinsic parameter set of heterogeneous power equipment, wherein the intrinsic parameter set comprises equipment type and equipment parameter standard; and acquiring a risk information set of the heterogeneous power equipment, wherein the risk information set comprises a fault type and a fault period.
3. The weather safety risk early warning method for heterogeneous power equipment according to claim 1, wherein the steps of obtaining weather features corresponding to risk information sets, performing correlation evaluation in combination with the risk information sets, and obtaining a single weather correlation parameter set of the heterogeneous power equipment comprise: Acquiring meteorological features corresponding to a risk information set in a fault period, wherein the meteorological features comprise meteorological types and meteorological periods; Extracting meteorological type frequencies corresponding to the same fault type in the risk information set, and obtaining single type correlation parameters; Extracting the coincidence time length of the fault time period and the meteorological time period corresponding to the same fault type in the risk information set, and obtaining a single time length correlation parameter; For each meteorological type, weighting and calculating the single type correlation parameter and the single duration correlation parameter to obtain the single meteorological correlation parameter of the meteorological type to the fault type; And integrating the single weather correlation parameters based on the inherent parameter set to obtain a single weather correlation parameter set.
4. The weather safety risk early warning method for heterogeneous power equipment according to claim 1, wherein the method for randomly combining the weather features to obtain comprehensive weather features and performing correlation evaluation in combination with a risk information set to obtain a comprehensive weather correlation parameter set of the heterogeneous power equipment comprises: Combining the meteorological features, and screening and obtaining meteorological combinations with synchronous occurrence rate larger than an occurrence rate threshold value to obtain comprehensive meteorological features, wherein the comprehensive meteorological features comprise comprehensive meteorological types and comprehensive meteorological periods; extracting the frequency of the comprehensive meteorological types of the same fault type in the risk information set, and obtaining a comprehensive type correlation parameter; Extracting the coincidence duration of the fault time period corresponding to the same fault type in the risk information set and the comprehensive meteorological time period, and obtaining a comprehensive duration correlation parameter; weighting and calculating the comprehensive type correlation parameter and the comprehensive duration correlation parameter for each comprehensive weather type to obtain the comprehensive weather correlation parameter of the comprehensive weather type to the fault type; and integrating the comprehensive weather correlation parameters based on the inherent parameter set to obtain a comprehensive weather correlation parameter set.
5. The method for early warning of weather safety risk for heterogeneous power equipment according to claim 4, wherein the steps of combining the weather features, and screening weather combinations with synchronous occurrence rate greater than an occurrence rate threshold to obtain comprehensive weather features include: Carrying out random combination of two or more than two of all extracted single weather features to obtain a plurality of weather combinations, wherein each weather combination comprises a plurality of weather types and weather periods corresponding to the weather types; counting the total number of synchronous occurrence of all weather types in each weather combination in a preset time range and the sum of the total number of independent occurrence of each weather type in the preset time range; dividing the total number of synchronous occurrence of each meteorological combination by the sum of the total number of independent occurrence of corresponding meteorological types to obtain the synchronous occurrence rate of each meteorological combination; And determining a weather combination with the synchronous occurrence rate larger than an occurrence rate threshold as a comprehensive weather type, extracting a weather period union of all weather types in the effective weather combination as a comprehensive weather period, and integrating to obtain comprehensive weather characteristics.
6. The weather safety risk early warning method for heterogeneous power equipment according to claim 1, wherein synthesizing the single weather correlation parameter set and the comprehensive weather correlation parameter set to obtain a weather risk parameter set comprises: extracting all single weather correlation parameters in the single weather correlation parameter set, and extracting all comprehensive weather correlation parameters in the comprehensive weather correlation parameter set; respectively carrying out normalization processing on the single weather correlation parameter and the comprehensive weather correlation parameter to obtain normalization correlation parameters of all single weather types and normalization correlation parameters of all comprehensive weather types; And integrating the normalized relevant parameters of each single weather type and the normalized relevant parameters of each comprehensive weather type to form a weather risk parameter set.
7. The method for weather safety risk early warning for heterogeneous power equipment according to claim 5, wherein acquiring weather early warning agents based on the intrinsic parameter set, risk information set and weather risk parameter set training comprises: constructing a weather early warning intelligent body, wherein the weather early warning intelligent body comprises a single weather branch and a comprehensive weather branch; And taking the single weather feature, the comprehensive weather feature and the inherent parameter set as input, taking the risk information set and the weather risk parameter set as supervision, and respectively training the weather early-warning agent to obtain the weather early-warning agent after training.
8. The weather safety risk early warning method for heterogeneous power equipment according to claim 1, wherein the weather safety risk early warning is performed, comprising: Acquiring a current meteorological feature set and a current intrinsic parameter set of current power equipment as input feature sets; and carrying out branch matching based on the current meteorological feature set, inputting the meteorological feature set and the current intrinsic parameter set into the meteorological early-warning agent, and obtaining predicted fault information and predicted meteorological risk parameters.
9. The heterogeneous power device-oriented weather safety risk early warning method according to claim 8, wherein performing branch matching based on the current weather feature set comprises: When the current meteorological features in the current meteorological feature set are single meteorological features, inputting the input feature set into a single meteorological branch; When the current meteorological features in the current meteorological features are comprehensive meteorological features, splitting the input feature set to obtain a single meteorological feature and a current intrinsic parameter set, and integrating the single meteorological feature and the current intrinsic parameter set to serve as a split input feature set; The split input feature set and the input feature set are respectively input into the weather early warning agent to obtain a plurality of prediction fault information and a plurality of prediction weather risk parameters, the same kind of fault coefficients are obtained based on the inherent parameter set, the plurality of prediction weather risk parameters are weighted and integrated to obtain the prediction fault information and the prediction weather risk parameters, and the same kind of fault coefficients are obtained based on the inherent parameter set and the risk information set.
10. The weather safety risk early warning system for heterogeneous power equipment, which is characterized by being used for executing the weather safety risk early warning method for heterogeneous power equipment according to any one of claims 1 to 9, and comprising: The information acquisition module is used for acquiring an inherent parameter set and a risk information set of the heterogeneous power equipment; The feature acquisition module is used for acquiring meteorological features corresponding to the risk information set, carrying out correlation evaluation by combining the risk information set, and acquiring a single meteorological correlation parameter set of the heterogeneous power equipment; the feature combination module is used for randomly combining the meteorological features to obtain comprehensive meteorological features, and carrying out correlation evaluation by combining the risk information set to obtain a comprehensive meteorological correlation parameter set of the heterogeneous power equipment; And the risk early warning module is used for synthesizing the single weather correlation parameter set and the comprehensive weather correlation parameter set, acquiring a weather risk parameter set, acquiring a weather early warning agent based on the inherent parameter set, the risk information set and the weather risk parameter set, and carrying out weather safety risk early warning.

Description

Meteorological safety risk early warning method and system for heterogeneous power equipment Technical Field The application relates to the technical field of early warning of power equipment, in particular to a weather safety risk early warning method and system for heterogeneous power equipment. Background With the deep promotion of smart power grid construction, the scale of a power system is continuously enlarged, the power grid structure is gradually complicated, and various power equipment presents remarkable isomerism characteristics in aspects of types, specifications, operation environments and the like. However, the sensitivity and fault response modes of different types of power equipment to meteorological factors are different due to the intrinsic differences of the physical structure, insulating materials, heat dissipation modes and anti-interference capability of the power equipment. The existing power equipment weather early warning method adopts a unified weather threshold standard, and cannot fully consider individual differences of heterogeneous equipment in the aspects of voltage resistance level, insulation aging degree, installation position and the like, so that an early warning result is deviated from an actual risk level. In addition, the association relation between a single meteorological factor and equipment faults is usually analyzed in an isolated mode in the prior art, the composite risk effect under the coupling action of multiple meteorological factors is ignored, and the equipment fault probability often shows nonlinear surge characteristics. Disclosure of Invention The embodiment of the application solves the technical problem that the weather safety risk early warning accuracy is insufficient due to the fact that the individual difference and the multi-weather factor coupling effect of the heterogeneous power equipment cannot be fully considered in the prior art by providing the weather safety risk early warning method and the weather safety risk early warning system for the heterogeneous power equipment. The technical scheme for solving the technical problems is as follows: in a first aspect, the present application provides a weather safety risk early warning method for heterogeneous power equipment, where the method includes: Acquiring an inherent parameter set and a risk information set of heterogeneous power equipment; Acquiring meteorological features corresponding to the risk information set, and carrying out correlation evaluation by combining the risk information set to acquire a single meteorological correlation parameter set of the heterogeneous power equipment; Randomly combining the meteorological features to obtain comprehensive meteorological features, and carrying out correlation evaluation by combining a risk information set to obtain a comprehensive meteorological correlation parameter set of heterogeneous power equipment; And synthesizing the single weather correlation parameter set and the comprehensive weather correlation parameter set to obtain a weather risk parameter set, training and obtaining a weather early warning agent based on the inherent parameter set, the risk information set and the weather risk parameter set, and carrying out weather safety risk early warning. In a second aspect, the present application provides a weather safety risk early warning system for heterogeneous power equipment, including: The information acquisition module is used for acquiring an inherent parameter set and a risk information set of the heterogeneous power equipment; The feature acquisition module is used for acquiring meteorological features corresponding to the risk information set, carrying out correlation evaluation by combining the risk information set, and acquiring a single meteorological correlation parameter set of the heterogeneous power equipment; the feature combination module is used for randomly combining the meteorological features to obtain comprehensive meteorological features, and carrying out correlation evaluation by combining the risk information set to obtain a comprehensive meteorological correlation parameter set of the heterogeneous power equipment; And the risk early warning module is used for synthesizing the single weather correlation parameter set and the comprehensive weather correlation parameter set, acquiring a weather risk parameter set, acquiring a weather early warning agent based on the inherent parameter set, the risk information set and the weather risk parameter set, and carrying out weather safety risk early warning. The application provides one or more technical schemes, which at least have the following technical effects or advantages: According to the embodiment of the application, the weather safety risk early warning method and the weather safety risk early warning system for the heterogeneous power equipment are provided, firstly, the inherent parameter set and the risk information set of the heterogeneous power eq