Unattended substation safety protection system and method

Abstract

The invention relates to an unattended substation safety protection system and method. The system comprises a video detection system, a data detection system, a data processing system, an alarm system and a power supply system. Wherein the power supply system is respectively connected with the video detection system, the data detection system, the data processing system and the alarm system and is used for supplying power, the video detection system and the data detection system are respectively connected with the data processing system, the video detection system is used for carrying out substation video acquisition, and the data detection system is used for carrying out substation data acquisition. The data processing system is used for analyzing videos collected by the video detection system and data collected by the data detection system, and the alarm system is connected with the data processing system and used for judging whether to give an alarm or not according to an analysis result of the data processing system. The transformer substation can be specially protected, and the influence of extreme weather on the transformer substation is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of substations, and in particular to a safety protection system and method for an unmanned substation. Background Art

[0002] A substation is a place in the power system that transforms voltage and current, receives electric energy, and distributes electric energy. The substation in a power plant is a step-up substation, which boosts the electric energy generated by the generator and feeds it into the high-voltage power grid.

[0003] The substations are as follows:

[0004] (1) Class I substations. Refers to AC UHV substations, nuclear power, large energy bases (3 million kw and above) transmission and cross-regional (North China, Central China, East China, Northeast China, Northwest China) 750 / 500 / 330 kV substations.

[0005] (2) Category II substations. These are substations other than Category I substations, including 750 / 500 / 330 kV substations, power plant transmission substations (1 million kW and above, 3 million kW and below), and inter-provincial 220 kV substations, as well as substations where the main transformer or busbar is out of service, or the switch refuses to operate, causing a Level 4 or above power grid event.

[0006] (3) Category III substations. These are 220 kV substations other than Category II, power plant transmission substations (300,000 kW and above, but below 1,000,000 kW), substations where the main transformer or busbar is out of service, or the switch refuses to operate, causing a Level 5 grid event, and substations that directly supply power to important users at or above Level 1.

[0007] (4) Category IV substation: refers to substations of 35 kV and above other than Category I, II and III.

[0008] Therefore, substations are extremely important in modern power supply systems. At present, extreme weather occurs frequently. Manned substations can still detect existing weather hazards, but unmanned substations are difficult to detect hidden dangers because they are unmanned, so special protection is required. Summary of the invention

[0009] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an unmanned substation safety protection system and method, which can provide special protection for the substation and reduce the impact of extreme weather problems on the substation.

[0010] The present invention solves the technical problem by adopting the following technical solutions:

[0011] An unattended substation safety protection system comprises a video detection system, a data detection system, a data processing system, an alarm system and a power supply system; wherein the power supply system is respectively connected to the video detection system, the data detection system, the data processing system and the alarm system for power supply, the video detection system and the data detection system are respectively connected to the data processing system, the video detection system is used for substation video acquisition, the data detection system is used for substation data acquisition, the data processing system is used for analysis based on the video acquired by the video detection system and the data acquired by the data detection system, and the alarm system is connected to the data processing system for judging whether to alarm based on the analysis result of the data processing system.

[0012] Moreover, the video detection system includes a plurality of camera fixing rods, and corresponding cameras are arranged on the tops of the camera fixing rods, and the cameras are used to shoot real-time video of the surrounding area of ​​the substation.

[0013] Moreover, the data detection system includes an infrared sensor, a temperature sensor, a humidity sensor and a wind speed sensor, wherein the infrared sensor is installed at the lower end of the camera fixing pole, the infrared sensor installed at the lower end of the camera fixing pole faces the adjacent camera fixing pole, the infrared sensor is used to detect whether small animals enter the substation, the temperature sensor, the humidity sensor and the wind speed sensor are installed inside the substation, the temperature sensor is used to detect the temperature of the substation and determine whether the temperature of the substation is too high; the humidity sensor is used to detect the humidity inside the substation and then determine whether water accumulates inside the substation; the wind speed sensor is used to determine the wind force around the substation and then determine whether strong winds have an impact on the substation.

[0014] Moreover, the data processing system is used to determine whether there is a safety problem in the substation based on the detection data of the infrared sensor, temperature sensor, humidity sensor and wind speed sensor, and transmit the alarm information and video to the monitoring equipment of the management personnel through the alarm system.

[0015] Moreover, the power supply system includes photovoltaic panels, batteries and power conversion modules, wherein the photovoltaic panels are installed on the top of the substation, and the photovoltaic panels are connected to the power conversion module and the battery in turn, the power conversion module is used to convert the electrical energy of the photovoltaic panels, and the battery is used to store the electrical energy of the photovoltaic panels.

[0016] A protection method for an unattended substation safety protection system comprises the following steps:

[0017] Step 1: The video detection system and the data detection system collect video and data in real time and send them to the data processing system;

[0018] Step 2: The data processing system constructs a protection analysis model, and inputs the data into the protection analysis model to determine whether there is an impact on the substation. If there is an impact on the substation, proceed to step 3, otherwise return to step 1;

[0019] Step 3: The data processing system generates alarm information, and transmits the alarm information and video to the monitoring equipment of the management personnel through the alarm system.

[0020] Moreover, the specific implementation method of constructing the protection analysis model in step 2 is: using the data collected by the data detection system as the input layer, and constructing the convolutional layer, excitation function, pooling layer, fully connected layer and output layer of the convolutional neural network at the same time, and combining the data collected by the data detection system as the input layer and the convolutional layer, excitation function, pooling layer, fully connected layer and output layer of the constructed convolutional neural network to obtain the constructed protection analysis model.

[0021] The advantages and positive effects of the present invention are:

[0022] The present invention includes a video detection system, a data detection system, a data processing system, an alarm system and a power supply system; wherein the power supply system is respectively connected to the video detection system, the data detection system, the data processing system and the alarm system for power supply, the video detection system and the data detection system are respectively connected to the data processing system, the video detection system is used for substation video acquisition, the data detection system is used for substation data acquisition, the data processing system is used for analyzing the video acquired by the video detection system and the data acquired by the data detection system, and the alarm system is connected to the data processing system for judging whether to alarm according to the analysis result of the data processing system. The present invention can provide special protection for substations and reduce the impact of extreme weather problems on substations. DETAILED DESCRIPTION

[0023] The present invention is further described below.

[0024] An unattended substation safety protection system comprises a video detection system, a data detection system, a data processing system, an alarm system and a power supply system; wherein the power supply system is respectively connected to the video detection system, the data detection system, the data processing system and the alarm system for power supply, the video detection system and the data detection system are respectively connected to the data processing system, the video detection system is used for substation video acquisition, the data detection system is used for substation data acquisition, the data processing system is used for analysis based on the video acquired by the video detection system and the data acquired by the data detection system, and the alarm system is connected to the data processing system for judging whether to alarm based on the analysis result of the data processing system.

[0025] The video detection system includes multiple camera fixing poles, and corresponding cameras are installed on the top of the camera fixing poles. The cameras are used to shoot real-time videos around the substation. Among them, the camera uses a 360-degree panoramic camera; the 360-degree panoramic camera used in the camera is a camera that can monitor without blind spots and has a fisheye lens with a 360-degree panoramic view. A 360-degree panoramic camera can replace multiple ordinary cameras and can achieve seamless monitoring.

[0026] The data detection system includes an infrared sensor, a temperature sensor, a humidity sensor and a wind speed sensor, wherein the infrared sensor is installed at the lower end of the camera fixing pole, and the infrared sensor installed at the lower end of the camera fixing pole faces the adjacent camera fixing pole. The infrared sensor is used to detect whether small animals enter the substation, and the temperature sensor, humidity sensor and wind speed sensor are installed inside the substation. The temperature sensor is used to detect the temperature of the substation and determine whether the temperature of the substation is too high; the humidity sensor is used to detect the humidity inside the substation and then determine whether water accumulates inside the substation; the wind speed sensor is used to determine the wind force around the substation and then determine whether strong winds have an impact on the substation.

[0027] The data processing system is used to build a protection analysis model based on the detection data of infrared sensors, temperature sensors, humidity sensors and wind speed sensors, and to determine whether there are safety issues in the substation, and to transmit the alarm information and video to the monitoring equipment of the management personnel through the alarm system.

[0028] In the present invention, the protection analysis model is established by a convolutional neural network; a convolutional neural network (CNN) is a type of feedforward neural network that includes convolution calculations and has a deep structure, and is one of the representative algorithms of deep learning. Convolutional neural networks have representation learning capabilities and can perform shift-invariant classification on input information according to their hierarchical structure, so they are also called "Shift-Invariant Artificial Neural Networks (SIANN)".

[0029] Convolutional neural networks are constructed by imitating the visual perception mechanism of organisms and can perform supervised and unsupervised learning. The sharing of convolution kernel parameters within the hidden layer and the sparsity of inter-layer connections enable convolutional neural networks to learn grid-like topology features such as pixels and audio with a small amount of computation, with stable results and no additional feature engineering requirements for the data.

[0030] Among them, the specific implementation method of constructing the protection analysis model is: taking the data collected by the data detection system as the input layer, and constructing the convolutional layer, excitation function, pooling layer, fully connected layer and output layer of the convolutional neural network at the same time, and combining the data collected by the data detection system as the input layer and the convolutional layer, excitation function, pooling layer, fully connected layer and output layer of the constructed convolutional neural network to obtain the constructed protection analysis model.

[0031] The power supply system includes photovoltaic panels, batteries and power conversion modules, wherein the photovoltaic panels are installed on the top of the substation, and the photovoltaic panels are connected to the power conversion module and the battery in turn. The power conversion module is used to convert the electrical energy of the photovoltaic panels, and the battery is used to store the electrical energy of the photovoltaic panels.

[0032] A protection method for an unmanned substation safety protection system comprises the following steps:

[0033] Step 1: The video detection system and the data detection system collect video and data in real time and send them to the data processing system.

[0034] Step 2: The data processing system constructs a protection analysis model and inputs the data into the protection analysis model to determine whether there is an impact on the substation. If there is an impact on the substation, proceed to step 3; otherwise, return to step 1.

[0035] Step 3: The data processing system generates alarm information, and transmits the alarm information and video to the monitoring equipment of the management personnel through the alarm system.

[0036] The present invention includes a video detection system, a data detection system, a data processing system, an alarm system and a power supply system; wherein the power supply system is respectively connected to the video detection system, the data detection system, the data processing system and the alarm system for power supply, the video detection system and the data detection system are respectively connected to the data processing system, the video detection system is used for substation video acquisition, the data detection system is used for substation data acquisition, the data processing system is used for analyzing the video acquired by the video detection system and the data acquired by the data detection system, and the alarm system is connected to the data processing system for judging whether to alarm according to the analysis result of the data processing system. The present invention can provide special protection for substations and reduce the impact of extreme weather problems on substations.

[0037] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention includes but is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. An unattended substation safety protection system, characterized in that: It includes a video detection system, a data detection system, a data processing system, an alarm system and a power supply system; wherein the power supply system is respectively connected to the video detection system, the data detection system, the data processing system and the alarm system for power supply, the video detection system and the data detection system are respectively connected to the data processing system, the video detection system is used for substation video acquisition, the data detection system is used for substation data acquisition, the data processing system is used for analysis based on the video acquired by the video detection system and the data acquired by the data detection system, and the alarm system is connected to the data processing system for determining whether to issue an alarm based on the analysis results of the data processing system.

2. The unmanned substation safety protection system according to claim 1 is characterized in that: The video detection system comprises a plurality of camera fixing rods, and corresponding cameras are arranged on the tops of the camera fixing rods, and the cameras are used to shoot real-time video of the surrounding area of ​​the substation.

3. The unmanned substation safety protection system according to claim 1 is characterized in that: The data detection system includes an infrared sensor, a temperature sensor, a humidity sensor and a wind speed sensor, wherein the infrared sensor is installed at the lower end of the camera fixing pole, the infrared sensor installed at the lower end of the camera fixing pole faces the adjacent camera fixing pole, the infrared sensor is used to detect whether small animals enter the substation, the temperature sensor, the humidity sensor and the wind speed sensor are installed inside the substation, the temperature sensor is used to detect the temperature of the substation and determine whether the temperature of the substation is too high; the humidity sensor is used to detect the humidity inside the substation and then determine whether water accumulates inside the substation; the wind speed sensor is used to determine the wind force around the substation and then determine whether strong winds have an impact on the substation.

4. The unmanned substation safety protection system according to claim 1 is characterized in that: The data processing system is used to determine whether there is a safety problem in the substation based on the detection data of the infrared sensor, temperature sensor, humidity sensor and wind speed sensor, and transmit the alarm information and video to the monitoring equipment of the management personnel through the alarm system.

5. The unmanned substation safety protection system according to claim 1 is characterized in that: The power supply system includes a photovoltaic panel, a battery and a power conversion module, wherein the photovoltaic panel is installed on the top of the substation, and the photovoltaic panel is connected to the power conversion module and the battery in sequence. The power conversion module is used to convert the electrical energy of the photovoltaic panel, and the battery is used to store the electrical energy of the photovoltaic panel.

6. A protection method for an unmanned substation safety protection system according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: The video detection system and the data detection system collect video and data in real time and send them to the data processing system; Step 2: The data processing system constructs a protection analysis model, and inputs the data into the protection analysis model to determine whether there is an impact on the substation. If there is an impact on the substation, proceed to step 3, otherwise return to step 1; Step 3: The data processing system generates alarm information, and transmits the alarm information and video to the monitoring equipment of the management personnel through the alarm system.

7. The protection method of the unmanned substation safety protection system according to claim 6 is characterized by: The specific implementation method of constructing the protection analysis model in step 2 is: using the data collected by the data detection system as the input layer, and simultaneously constructing the convolutional layer, excitation function, pooling layer, fully connected layer and output layer of the convolutional neural network, and combining the data collected by the data detection system as the input layer and the convolutional layer, excitation function, pooling layer, fully connected layer and output layer of the constructed convolutional neural network to obtain the constructed protection analysis model.