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CN-121118301-B - Wiring system and method for skid-mounted electronic control integrated transformer substation

CN121118301BCN 121118301 BCN121118301 BCN 121118301BCN-121118301-B

Abstract

The invention relates to the field of wiring of substations, in particular to a wiring system and a wiring method for a skid-mounted electric control integrated substation, wherein the method comprises the steps of constructing a time data sequence and a last time step comprehensive hiding characteristic of the temperature in a cabinet of the substation, the temperature outside the cabinet and the humidity of the substation, and generating coding characteristics by a multivariable attention mechanism and a parallel LSTM coding model; the coding feature and the physical prediction feature are used for generating the dehumidifier working power and the heater working power by fusing a mapping layer, a time attention mechanism and a control model. The intelligent control device and the intelligent control method realize intelligent control of the dehumidifier and the heater in the anti-condensation wiring of the skid-mounted electric control integrated transformer substation, and ensure proper heat dissipation and dehumidification effects.

Inventors

  • YAO GUANGQING

Assignees

  • 黑龙江省广利达智能电气设备制造有限公司

Dates

Publication Date
20260505
Application Date
20250908

Claims (10)

  1. 1. The wiring method for the skid-mounted electronic control integrated transformer substation is characterized by comprising the following steps of: Constructing a time data sequence based on the detected temperature in the cabinet, the detected temperature outside the cabinet and the detected humidity of the skid-mounted electric control integrated transformer substation; passing the time data sequence and the last time step comprehensive hidden feature through a multivariate attention mechanism to generate an attention weighted sequence; Passing the attention weighted sequence through a parallel LSTM encoding model to generate encoded features; passing the time data sequence through a conservation equation of water vapor mass in the cabinet to generate physical prediction characteristics; The coding features and the physical prediction features pass through a fusion mapping layer to update the last time step comprehensive hiding features, and iterative computation is carried out on the last time step comprehensive hiding features through a multivariable attention mechanism and a parallel LSTM coding model; Weighting and calculating the physical prediction characteristics and the last time step comprehensive hiding characteristics of all time steps through a time attention mechanism to generate a temperature and humidity time sequence comprehensive vector; and enabling the temperature and humidity time sequence comprehensive vector to pass through a control model based on a multi-layer perceptron framework to generate dehumidifier working power and heater working power of the skid-mounted electric control integrated transformer substation, so as to perform anti-condensation wiring.
  2. 2. The wiring method for a skid-mounted electronically controlled integrated substation according to claim 1, wherein the process of generating the attention weighted sequence by a multivariate attention mechanism comprises: fusing the time data sequence and the last time step comprehensive hidden characteristic through convolution operation to generate a fused characteristic; The fusion characteristics are subjected to mapping normalization layers to generate attention weights; The attention weighting sequence is generated based on element-wise multiplication of the attention weights and the temporal data sequence.
  3. 3. The wiring method for a skid-mounted electronically controlled integrated substation according to claim 1, wherein the coding features comprise long-term coding features and short-term coding features, the parallel LSTM coding model comprises a high-frequency LSTM coding layer and a downsampled long-term LSTM coding layer, and the process of generating the coding features by the parallel LSTM coding model comprises: passing the attention weighted sequence through a high frequency LSTM encoding layer to generate short term encoding features; downsampling the attention weighting sequence to generate a downsampled sequence; Passing the downsampled sequence through a downsampled long-term LSTM encoding layer to generate an initial long-term encoding sequence; The initial long-term coding sequence is linearly interpolated to generate long-term coding features.
  4. 4. The wiring method for a skid-mounted electronically controlled integrated substation according to claim 1, wherein the process of generating the physical prediction features by the in-cabinet water vapor mass conservation equation comprises: the time data sequence is passed through a conversion equation based on saturated water vapor pressure to generate absolute humidity inside the cabinet and absolute humidity outside the cabinet; Calculating air infiltration amount based on the absolute humidity inside the cabinet and the absolute humidity outside the cabinet; calculating the mass change rate of the water vapor in the cabinet based on the air infiltration amount and the dehumidifier water removal amount; based on discrete calculations of the rate of change of mass of water vapor within the cabinet, to generate the physical prediction feature.
  5. 5. The wiring method for a skid-mounted electronic control integrated substation according to claim 1, wherein the process of updating the last time-step comprehensive hidden feature through the fusion mapping layer comprises the following steps: and passing the spliced vector of the coding feature and the physical prediction feature through a fusion mapping layer based on a tanh function to update the last time step comprehensive hidden feature.
  6. 6. The wiring method for the skid-mounted electronic control integrated substation according to claim 1, wherein the process of generating the temperature and humidity time sequence comprehensive vector by performing weighted calculation through a time attention mechanism comprises the following steps: the comprehensive hiding feature of the previous time step passes through a time attention mechanism to generate a time attention weight; multiplying the time attention weight and the last time step comprehensive hidden characteristic and summing all time steps to generate the temperature and humidity time sequence comprehensive vector.
  7. 7. The wiring method for a skid-mounted electronically controlled integrated substation according to claim 1, wherein the process of generating the dehumidifier operating power and the heater operating power through the control model based on the multi-layer perceptron architecture comprises: Passing the temperature and humidity time sequence comprehensive vector through a multi-layer perceptron layer to generate a mapping vector; the mapping vector is convolved by an output to generate the dehumidifier operating power and the heater operating power.
  8. 8. The wiring method for a skid-mounted electronically controlled integrated substation of claim 1, further comprising: Constructing a control smoothness loss term based on the dehumidifier operating power and the heater operating power for a plurality of time steps; constructing a comfort loss term based on the dehumidifier operating power, the heater operating power and a sample target power; and constructing a comprehensive loss function based on the control smoothness loss term and the comfort level loss term, and performing cooperative training on the multivariable attention mechanism, the parallel LSTM coding model, the fusion mapping layer, the time attention mechanism and the control model based on the comprehensive loss function.
  9. 9. A wiring system for a skid-mounted electronic control integrated substation, characterized in that a wiring method of the skid-mounted electronic control integrated substation according to any one of claims 1 to 8 is applied.
  10. 10. The wiring system for a skid-mounted electronically controlled integrated substation of claim 9, comprising: The switching box (1) is provided with a plug (121) and a socket (122) which are detachably arranged on the mounting wall (12), wherein the bottom of the mounting wall (12) is provided with a dehumidifier (2) for executing the working power of the dehumidifier, and the top of the mounting wall is provided with a heater (3) for executing the working power of the heater; The cabinet door of the transfer box (1) is provided with a temperature sensor for collecting the temperature in the cabinet and a humidity sensor for collecting the humidity.

Description

Wiring system and method for skid-mounted electronic control integrated transformer substation Technical Field The invention relates to the field of wiring of substations, in particular to a wiring system and method for a skid-mounted electronic control integrated substation. Background The skid-mounted electric control integrated transformer substation is used as integrated and modularized power transformation equipment, and is widely applied to the scenes of urban power distribution, temporary power supply, industrial parks and new energy stations due to the characteristics of compact structure, convenient movement, quick deployment and the like. The transformer, the switch equipment, the control system and the auxiliary equipment are integrated in the transformer, and the electric connection and protection functions are completed in a limited space. However, the integrated structure of the transformer substation also brings challenges in heat dissipation and humidity control, especially when the transformer substation is deployed in a high-temperature and high-humidity environment, a large amount of heat can be generated when the electric elements in the transformer substation run for a long time, and at the moment, the temperature in the transformer substation is higher than the temperature outside the transformer substation, so that condensation in the transformer substation is caused, the condensation in the transformer substation is extremely easy to cause electric short circuit, the insulation performance of equipment is reduced, and the operation safety and the service life of the transformer substation are influenced. In recent years, with the development of the internet of things and artificial intelligence technology, predictive control methods based on time series data analysis are gradually applied in industrial equipment environments. For example, some studies have attempted to model temperature and humidity sequences using Recurrent Neural Networks (RNNs) or long short term memory networks (LSTM). However, the existing method only depends on data driving, ignores the constraint of a physical rule, causes insufficient training data and poor generalization capability, and on the other hand, fails to effectively coordinate the comprehensive expression of long-term and short-term dependence characteristics and lacks capture modeling of a multivariable coupling relation. Therefore, how to realize the anti-condensation wiring of the skid-mounted electric control integrated transformer substation with long-term and short-term temperature and humidity sensing and multivariable cooperative control is a technical problem to be solved at present. Disclosure of Invention Therefore, the wiring system and the wiring method for the skid-mounted electric control integrated transformer substation provided by the invention adopt a multivariable attention mechanism and a parallel LSTM coding structure, can simultaneously capture long-term trend and short-term fluctuation characteristics of temperature and humidity, realize comprehensive perception of the environment in the cabinet, intelligently control a dehumidifier and a heater in anti-condensation wiring of the skid-mounted electric control integrated transformer substation, and ensure proper heat dissipation and dehumidification effects. In order to achieve the above purpose, the present invention provides a wiring method for a skid-mounted electronic control integrated substation, comprising: Constructing a time data sequence based on the detected temperature in the cabinet, the detected temperature outside the cabinet and the detected humidity of the skid-mounted electric control integrated transformer substation; passing the time data sequence and the last time step comprehensive hidden feature through a multivariate attention mechanism to generate an attention weighted sequence; Passing the attention weighted sequence through a parallel LSTM encoding model to generate encoded features; passing the time data sequence through a conservation equation of water vapor mass in the cabinet to generate physical prediction characteristics; The coding features and the physical prediction features pass through a fusion mapping layer to update the last time step comprehensive hiding features, and iterative computation is carried out on the last time step comprehensive hiding features through a multivariable attention mechanism and a parallel LSTM coding model; Weighting and calculating the physical prediction characteristics and the last time step comprehensive hiding characteristics of all time steps through a time attention mechanism to generate a temperature and humidity time sequence comprehensive vector; and enabling the temperature and humidity time sequence comprehensive vector to pass through a control model based on a multi-layer perceptron framework to generate dehumidifier working power and heater working power of the skid-mounted electric control integ