Substation Online Monitoring System

Abstract

The present disclosure provides an online monitoring system for a substation, which belongs to the technical field of power equipment monitoring. The online monitoring system for a substation includes: a power monitoring module, a light sensing module, a central control terminal, an environment monitoring module and a frequency converter. The power monitoring module is used to connect to the power equipment of an external substation. The light sensing module is arranged in the external substation. The light sensing module is connected to the central control terminal. The environment monitoring module is arranged in the external substation. The environment monitoring module is connected to the central control terminal. The central control terminal is connected to the frequency converter. The frequency converter is connected to the power monitoring module. The present disclosure can adopt different monitoring modes for external substations in different time periods of a day and in different seasons of a year, control the amount of data storage by adjusting the acquisition frequency, reduce memory occupancy, meet diverse monitoring needs and improve monitoring efficiency.

Description

Technical Field

[0001] The present disclosure relates to the technical field of power equipment monitoring, and in particular to an online monitoring system for a substation. Background Art

[0002] With the continuous development of the power system, substations have become an important part of the power system, and their safe and stable operation is crucial to the reliability of the entire power system. In order to improve the operating efficiency and safety of substations, substation monitoring systems will be more inclined to intelligent and automated development. The current substation monitoring system usually uses advanced sensor technology and data processing technology to conduct real-time monitoring and data analysis of equipment in the substation, thereby realizing real-time monitoring of the operating status of power equipment, reducing manual intervention and human errors, and providing strong guarantees for the safe and stable operation of substations. However, with the increase in the types of substation data and the sharp increase in data volume, the existing substation monitoring system has problems such as a single data acquisition frequency, resulting in a data acquisition rate that cannot meet monitoring requirements, thereby reducing monitoring efficiency and affecting the safe and stable operation of the power grid. Therefore, there is an urgent need for an online monitoring system for substations. Utility Model Content

[0003] The disclosed embodiment provides an online monitoring system for a substation to improve the flexibility of adjusting the frequency of data collection in the substation.

[0004] The embodiment of the present disclosure provides a substation online monitoring system, including:

[0005] Power monitoring module, light sensing module, central control terminal, environment monitoring module and frequency converter.

[0006] The power monitoring module is used to connect to the power equipment of the external substation.

[0007] The light sensing module is arranged in the external substation and is connected to the central control terminal.

[0008] The environmental monitoring module is arranged in the external substation and is connected to the central control terminal.

[0009] The central control terminal is connected to the frequency converter. The frequency converter is connected to the power monitoring module.

[0010] In an exemplary embodiment of the present disclosure, the substation online monitoring system further includes:

[0011] Infrared sensing module and image acquisition device.

[0012] The infrared sensing module is connected to the central control terminal. The central control terminal is connected to the image acquisition device.

[0013] In an exemplary embodiment of the present disclosure, the substation online monitoring system further includes:

[0014] A first data storage unit and a second data storage unit.

[0015] The power monitoring module is connected to the first data storage unit. The environment monitoring module is connected to the second data storage unit.

[0016] In an exemplary embodiment of the present disclosure, the first data storage unit includes a plurality of first storage sub-units, and the second data storage unit includes a plurality of second storage sub-units.

[0017] The power monitoring module includes a plurality of power monitoring sensors, and each power monitoring sensor is correspondingly connected to a first storage subunit.

[0018] The environment monitoring module includes a plurality of environment monitoring sensors, and each environment monitoring sensor is correspondingly connected to a second storage subunit.

[0019] In an exemplary embodiment of the present disclosure, the substation online monitoring system further includes:

[0020] a first processor and a plurality of alarm units;

[0021] The multiple first storage subunits and the multiple second storage subunits are all connected to the first processor; the first processor is connected to the multiple alarm units.

[0022] In an exemplary embodiment of the present disclosure, the substation online monitoring system further includes:

[0023] a first signal converter, a second signal converter, and a third signal converter;

[0024] The plurality of first storage subunits are connected to the first signal converter; the plurality of second storage subunits are connected to the second signal converter; the first signal converter and the second signal converter are both connected to the first processor;

[0025] The plurality of first storage subunits and the plurality of second storage subunits are also connected to the third signal converter, the third signal converter is connected to the first processor; the first processor is connected to the plurality of alarm units.

[0026] In an exemplary embodiment of the present disclosure, the power monitoring module includes:

[0027] Current sensor, voltage sensor, power sensor and energy consumption sensor. The current sensor, voltage sensor and power sensor are all used to connect with the power equipment of the external substation.

[0028] In an exemplary embodiment of the present disclosure, the environment monitoring module includes:

[0029] Temperature sensor, pressure sensor, smoke sensor and humidity sensor: The temperature sensor, pressure sensor, smoke sensor and humidity sensor are all arranged in the external substation.

[0030] The beneficial effects of the substation online monitoring system provided by the embodiment of the present disclosure are as follows:

[0031] First, the disclosed embodiment can monitor the current environment of the external substation through the light sensing module, whether it is daytime or nighttime, and the central control terminal controls the frequency converter to output the corresponding frequency signal according to the monitoring data of the light sensing module. This embodiment can flexibly adjust the acquisition frequency of each monitoring sensor in the power monitoring module and the environmental monitoring module based on the different operating states of the substation during the day and at night, so as to avoid collecting too much invalid data and occupying the memory when the workload of the substation is small at night and its various power data change little.

[0032] Second, the disclosed embodiment can monitor the current season of the external substation through the environmental monitoring module, and the central control terminal controls the frequency converter to output the corresponding frequency signal according to the monitoring data of the environmental monitoring module. This embodiment can flexibly adjust the acquisition frequency of each monitoring sensor in the power monitoring module and the environmental monitoring module according to the workload of the substation in different seasons, so as to avoid the situation where a single acquisition frequency cannot meet the changing monitoring requirements when the substation operating status changes due to seasonal changes, and effectively improve the monitoring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 is a structural diagram of a substation online monitoring system provided by an embodiment of the present disclosure;

[0035] Figure 2 It is a structural schematic diagram of another substation online monitoring system provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0036] In order to enable people in the technical field to better understand the present solution, the technical solution in the embodiment of the present solution will be clearly described below in conjunction with the drawings in the embodiment of the present solution. Obviously, the described embodiment is an embodiment of a part of the present solution, not all of the embodiments. Based on the embodiments in the present solution, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present solution.

[0037] The term "including" and any other variations in the specification and claims of this solution and the above drawings mean "including but not limited to", and is intended to cover non-exclusive inclusions and is not limited to the examples listed in the text. In addition, the terms "first" and "second" are used to distinguish different objects, not to describe a specific order.

[0038] The following is a detailed description of the implementation of the present disclosure in conjunction with the specific drawings:

[0039] Figure 1 A schematic diagram of the structure of a substation online monitoring system provided by an embodiment of the present disclosure. Figure 1 , the substation online monitoring system 100 comprises:

[0040] The power monitoring module 101 , the light sensing module 102 , the central control terminal 103 , the environment monitoring module 104 and the frequency converter 105 .

[0041] The power monitoring module 101 is used to connect to the power equipment of the external substation 200 .

[0042] The light sensing module 102 is disposed in the external substation 200 . The light sensing module 102 is connected to the central control terminal 103 .

[0043] The environment monitoring module 104 is disposed in the external substation 200. The environment monitoring module 104 is connected to the central control terminal 103.

[0044] The central control terminal 103 is connected to the frequency converter 105 . The frequency converter 105 is connected to the power monitoring module 101 .

[0045] In this embodiment, the power monitoring module 101 is composed of a plurality of power monitoring sensors, each of which is used to be connected to a corresponding power device of the external substation 200 to monitor the operating data of different power devices.

[0046] The light sensing module 102 is a sensor device that can sense changes in light intensity. The light sensing module 102 is disposed in the external substation 200 and is used to sense light in the environment of the external substation 200. The light sensing module 102 is connected to the central control terminal 103 and transmits the monitoring results to the central control terminal 103 in real time.

[0047] The central control terminal 103 is an electronic device for receiving and sending various control instructions. The central control terminal 103 can determine whether it is daytime or nighttime according to the sensing result of the light sensing module 102, and send different control instructions to the frequency converter 105 according to the judgment result.

[0048] In the art, the central control terminal 103 can output different control signals according to the sensing result of the light sensing module, and the frequency converter 105 can output different conversion frequencies according to different control signals.

[0049] For example, in order to improve the safety of charging piles when used at night, a light sensing module is set up to sense light changes, and the central control end determines the current time period to determine whether it is day or night, and issues driving safety reminders to the drivers of charging vehicles at night.

[0050] For example, in order to automatically adjust the transmittance of the lenses to achieve the purpose of anti-glare, a light sensing module is set at the front end of the glasses, and a central control end is set inside the frame. The light sensing module senses different light intensities during the day or at night, and can output different control signals during the day or at night to control the corresponding circuit to change the transmittance of the lenses.

[0051] For example, in order to achieve the purpose of measuring the distance to the target in strong or weak light, a central control end, a frequency converter and a light sensing module are set. The central control end sends different control instructions to the frequency converter according to the size of the voltage signal generated by the light sensing module in response to light, so as to control the frequency converter to emit different frequency signals.

[0052] For example, in order to realize intelligent remote control of fill light, different control instructions are sent to multiple different frequency controllers through the central control end according to the light intensity data collected by the light sensing module, so as to control the output frequency of the frequency converter to provide timely fill light when the light is weak.

[0053] The environment monitoring module 104 is composed of a plurality of environment monitoring sensors, each of which is arranged in an external substation, and is used to monitor the environment data of the external substation in real time. The environment monitoring module 104 is connected to the central control terminal 103, and the central control terminal 103 can judge the season in which the external substation 200 is currently located according to the monitoring data of the environment monitoring module 104, and can set a judgment threshold for different environment monitoring sensors. When the monitoring data reaches the judgment threshold, it indicates that the season has changed. The central control terminal 103 judges the season in which the external substation 200 is currently located by analyzing various monitoring data, and sends corresponding control instructions to the frequency converter 105 according to different judgment results.

[0054] For example, in order to adjust the cooling rate of feed in different seasons, the central control terminal determines the current season based on the data obtained by monitoring the environment, and controls the output frequency of the frequency converter connected to the cooling fan to control the cooling fan at the corresponding working frequency in different seasons and accurately control the cooling degree of the feed. The frequency converter 105 is an electronic device that can convert the frequency of the input signal and output different frequency signals. After receiving the control instruction from the central control terminal 103, the frequency converter 105 outputs the corresponding frequency signal according to the control instruction.

[0055] For example, in order to better meet the lighting conditions required for plant growth, the central processing unit analyzes the required light intensity and frequency based on the light sensitivity value, and sends the processed signal to the central control end, which sends corresponding control instructions to multiple frequency converters. After receiving the control instruction, the multiple frequency converters output different frequency signals according to the instruction to adjust the lighting frequency of the plant growth lamp to adapt to the light required by the plants.

[0056] It can be concluded from the above that the present embodiment can flexibly adjust the acquisition frequency of each monitoring device in the power monitoring module 101 and the environment monitoring module 104, and adopt different monitoring modes for the external substation 200 in different time periods of a day and different seasons of a year. By adjusting the acquisition frequency, the data storage amount is controlled, the memory usage is reduced, the diversified monitoring needs are met, and the monitoring efficiency is improved.

[0057] In one embodiment of the present disclosure, Figure 2 is a structural diagram of another substation online monitoring system provided by an embodiment of the present disclosure, such as Figure 2 As shown, the substation online monitoring system 100 also includes:

[0058] Infrared sensing module 106 and image acquisition device 107 .

[0059] The infrared sensing module 106 is connected to the central control terminal 103 . The central control terminal 103 is connected to the image acquisition device 107 .

[0060] In this embodiment, in order to effectively prevent the occurrence of safety accidents caused by man-made damage to the external substation 200 and man-made mistaken entry into the external substation 200, the substation online monitoring system 100 also includes: an infrared sensing module 106 and an image acquisition device 107. The infrared sensing module 106 is a device that uses the infrared sensing principle to achieve automatic control. When someone enters its sensing range, the infrared sensing module 106 detects changes in the infrared spectrum of the human body and automatically connects the load. The image acquisition device 107 can be a high-definition camera for monitoring the surrounding environment of the external substation 200.

[0061] The infrared sensing module 106 is connected to the central control terminal 103, and the central control terminal 103 is connected to the image acquisition device 107. When no one enters the sensing range, the central control terminal 103 receives the first sensing result from the infrared sensing module 106, thereby controlling the image acquisition device 107 to be in a closed state; when someone approaches the sensing range, the central control terminal 103 receives the second sensing result from the infrared sensing module 106, controls the image acquisition device 107 to be in an open state, and performs real-time monitoring of the surrounding environment of the external substation 200.

[0062] It can be concluded from the above that the present embodiment can intelligently control the operating state of the image acquisition device 107 through the infrared sensing module 106, so that the image acquisition device 107 can be automatically turned on only when the monitoring requirements are met, thereby reducing the operating time, extending the operating life, saving electric energy, and avoiding the storage of a large amount of invalid monitoring data.

[0063] In one embodiment of the present disclosure, the substation online monitoring system 100 further includes:

[0064] A first data storage unit and a second data storage unit.

[0065] The power monitoring module 101 is connected to the first data storage unit. The environment monitoring module 104 is connected to the second data storage unit.

[0066] In this embodiment, the data of the external substation 200 is complex in type and huge in amount. Traditional substation monitoring systems generally have the problem of difficulty in data classification, which brings many inconveniences to the data sorting work of subsequent managers. In order to clearly store various monitoring data of the external substation 200 for subsequent management personnel to call and analyze, the substation online monitoring system 100 also includes: a first data storage unit and a second data storage unit.

[0067] Among them, the power monitoring module 101 is connected to the first data storage unit, and the first data storage unit is used to store the monitoring data generated by the power monitoring module 101; the environment monitoring module 104 is connected to the second data storage unit, and the second data storage unit is used to store the monitoring data generated by the environment monitoring module 104.

[0068] It can be concluded from the above that this embodiment stores the monitoring data generated by the power monitoring module 101 and the environment monitoring module 104 separately by setting different data storage units, thereby ensuring clear data classification and facilitating subsequent data management work.

[0069] In an embodiment of the present disclosure, the first data storage unit includes a plurality of first storage sub-units, and the second data storage unit includes a plurality of second storage sub-units.

[0070] The power monitoring module 101 includes a plurality of power monitoring sensors, and each power monitoring sensor is correspondingly connected to a first storage subunit.

[0071] The environment monitoring module 104 includes a plurality of environment monitoring sensors, and each environment monitoring sensor is correspondingly connected to a second storage subunit.

[0072] In this embodiment, since the power monitoring module 101 includes multiple power monitoring sensors and the environment monitoring module 104 includes multiple environment monitoring sensors, the first data storage unit and the second data storage unit are both composed of multiple storage sub-units, and each storage sub-unit corresponds to storing the monitoring data generated by different monitoring sensors.

[0073] The first data storage unit includes a plurality of first storage subunits, each power monitoring sensor is connected to a first storage subunit, and each first storage subunit is used to store the monitoring data generated by the corresponding power detection sensor. The second data storage unit includes a plurality of second storage subunits, and each second storage subunit is used to store the monitoring data generated by the corresponding environment monitoring sensor.

[0074] In addition, the number of the plurality of first storage subunits may be greater than the number of types of power monitoring sensors in the power monitoring module 101, so as to ensure that when the monitoring range needs to be expanded as the external substation 200 ages, if other types of power monitoring sensors are added to the power monitoring module 101, there is sufficient storage space. Similarly, the number of the plurality of second storage subunits may be greater than the number of types of environment monitoring sensors in the environment monitoring module 104.

[0075] It can be concluded from the above that this embodiment can store each type of monitoring data separately, prevent data mixing and data loss, and improve the management efficiency of the monitoring data of the external substation 200.

[0076] In one embodiment of the present disclosure, the substation online monitoring system 100 further includes:

[0077] a first processor and a plurality of alarm units;

[0078] The plurality of first storage subunits and the plurality of second storage subunits are all connected to the first processor. The first processor is connected to the plurality of alarm units.

[0079] In this embodiment, the current existing substation monitoring system is generally provided with an alarm unit, but it can usually only realize a simple alarm function, and cannot accurately determine the fault location according to the alarm information. In order to more conveniently and accurately determine the fault location directly through the alarm information, the substation online monitoring system 100 also includes: a first processor and multiple alarm units. Each alarm unit corresponds to a storage subunit for alarm. The first processor is an electronic device capable of data analysis and processing. Multiple first storage subunits and multiple second storage subunits are connected to the first processor, and the first processor processes and analyzes the data in the multiple first storage subunits and the multiple second storage subunits to determine the source of the abnormal data. The first processor is connected to the multiple alarm units, and the first processor transmits the analysis results to the multiple alarm units. The multiple alarm units can analyze the storage subunits where the abnormal data exists according to the analysis results, and then locate the monitoring sensor corresponding to the storage subunit and send the corresponding alarm information, so as to realize the rapid fault location process.

[0080] From the above, it can be concluded that the present embodiment can correspond different alarm units according to different data analysis results, thereby issuing corresponding alarm information, which is convenient for management personnel to promptly determine the fault location of the external substation 100 according to the alarm information, clarify the maintenance direction as soon as possible, and reduce the additional losses caused by the fault.

[0081] In one embodiment of the present disclosure, the substation online monitoring system 100 further includes:

[0082] A first signal converter, a second signal converter and a third signal converter.

[0083] A plurality of first storage subunits are connected to the first signal converter. A plurality of second storage subunits are connected to the second signal converter. Both the first signal converter and the second signal converter are connected to the first processor.

[0084] The plurality of first storage subunits and the plurality of second storage subunits are also connected to the third signal converter, and the third signal converter is connected to the first processor. The first processor is connected to the plurality of alarm units.

[0085] In this embodiment, since the collected monitoring data needs to be converted into digital signals before the first processor processes the data, the substation online monitoring system 100 further includes: a first signal converter, a second signal converter, and a third signal converter. The first signal converter, the second signal converter, and the third signal converter are all electronic components that can convert analog signals into digital signals.

[0086] The plurality of first storage subunits are connected to the first signal converter, which is responsible for converting the data in the plurality of first storage subunits; the plurality of second storage subunits are connected to the second signal converter, which is responsible for converting the data in the plurality of second storage subunits. The first signal converter and the second signal converter are both connected to the first processor, and the first signal converter and the second signal converter uniformly transmit the converted data to the first processor.

[0087] In addition, the third signal converter serves as a backup converter, and the plurality of first storage sub-units and the plurality of second storage sub-units are also connected to the third signal converter. When the first signal converter or the second signal converter fails and data conversion cannot be performed, the third signal converter can perform data conversion. The first processor is connected to the plurality of alarm units. If both the first signal converter and the second signal converter fail, the data of the plurality of first storage sub-units and the plurality of second storage sub-units are transmitted to the third signal converter, which may cause data confusion and data conversion cannot be performed. In this case, the first processor directly sends a fault signal to the plurality of alarm units, and the plurality of alarm units send corresponding alarm information.

[0088] It can be concluded from the above that this embodiment provides double protection for the data conversion process by setting the third signal converter, thereby avoiding the data conversion process being affected by the failure of the first signal converter or the second signal converter, thereby affecting the monitoring accuracy, and improving the monitoring reliability.

[0089] In one embodiment of the present disclosure, the power monitoring module 101 includes:

[0090] Current sensor, voltage sensor and power sensor: The current sensor, voltage sensor and power sensor are used to connect with the power equipment of the external substation 200.

[0091] In this embodiment, the current sensor is a sensor used to measure the current information in the circuit and can convert the information into an electrical signal or other forms of information output according to a certain rule. The voltage sensor is a sensor used to measure the voltage information in the circuit and convert the information into an electrical signal or other forms of information output. The power sensor is a sensor used to measure the input / output power of an electrical device.

[0092] The current sensor, the voltage sensor and the power sensor are all used to connect with the power equipment of the external substation 200 to monitor the current, voltage and power data of each power equipment of the external substation 200 respectively.

[0093] It can be concluded from the above that the present embodiment provides a variety of power monitoring sensors to expand the monitoring scope of the external substation 200 and improve the detection effectiveness.

[0094] In one embodiment of the present disclosure, the environment monitoring module 104 includes:

[0095] Temperature sensor, pressure sensor, smoke sensor and humidity sensor: The temperature sensor, pressure sensor, smoke sensor and humidity sensor are all arranged in the external substation 200 .

[0096] In this embodiment, the temperature sensor is a sensor that can sense temperature information and convert it into a usable output signal. The pressure sensor is a device that can sense pressure signals and convert the pressure signals into usable output signals according to certain rules. The smoke sensor is a sensor used to monitor the concentration of smoke and convert it into a usable output signal. The humidity sensor is a sensor used to monitor the humidity and moisture content in the air and convert it into a usable output signal.

[0097] The temperature sensor, the pressure sensor, the smoke sensor and the humidity sensor are all arranged in the external substation 200 to monitor various environmental data in the external substation 200 .

[0098] It can be concluded from the above that in this embodiment, a variety of environmental monitoring sensors are provided to accurately judge the environment in which the external substation 200 is located, thereby improving the accuracy of frequency control.

[0099] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A substation online monitoring system, characterized in that: include: Power monitoring module, light sensing module, central control terminal, environmental monitoring module and frequency converter; The power monitoring module is used to connect to the power equipment of the external substation; The light sensing module is arranged in the external substation; the light sensing module is connected to the central control terminal; The environmental monitoring module is arranged in the external substation; the environmental monitoring module is connected to the central control terminal; The central control terminal is connected to the frequency converter; the frequency converter is connected to the power monitoring module.

2. The substation online monitoring system according to claim 1, characterized in that: Also includes: Infrared sensing module and image acquisition equipment; The infrared sensing module is connected to the central control terminal; The central control terminal is connected to the image acquisition device.

3. The substation online monitoring system according to claim 1, characterized in that: Also includes: a first data storage unit and a second data storage unit; The power monitoring module is connected to the first data storage unit; The environment monitoring module is connected to the second data storage unit.

4. The substation online monitoring system according to claim 3, characterized in that: The first data storage unit includes a plurality of first storage sub-units, and the second data storage unit includes a plurality of second storage sub-units; The power monitoring module includes a plurality of power monitoring sensors, each of which is connected to a corresponding first storage subunit; The environment monitoring module includes a plurality of environment monitoring sensors, and each environment monitoring sensor is correspondingly connected to a second storage subunit.

5. The substation online monitoring system according to claim 4, characterized in that: Also includes: a first processor and a plurality of alarm units; The plurality of first storage subunits and the plurality of second storage subunits are both connected to the first processor; The first processor is connected to the plurality of alarm units.

6. The substation online monitoring system according to claim 5, characterized in that: Also includes: a first signal converter, a second signal converter, and a third signal converter; The plurality of first storage subunits are connected to the first signal converter; the plurality of second storage subunits are connected to the second signal converter; the first signal converter and the second signal converter are both connected to the first processor; The plurality of first storage subunits and the plurality of second storage subunits are also connected to the third signal converter, the third signal converter is connected to the first processor; the first processor is connected to the plurality of alarm units.

7. The substation online monitoring system according to claim 1, characterized in that: The power monitoring module comprises: Current sensor, voltage sensor, power sensor and energy consumption sensor; the current sensor, the voltage sensor and the power sensor are all used to connect with the power equipment of the external substation.

8. The substation online monitoring system according to claim 1, characterized in that: The environmental monitoring module comprises: A temperature sensor, a pressure sensor, a smoke sensor and a humidity sensor; the temperature sensor, the pressure sensor, the smoke sensor and the humidity sensor are all arranged in the external substation.

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