CN113945330A - Leakage monitoring system and method for transformer substation oil filling equipment - Google Patents
Leakage monitoring system and method for transformer substation oil filling equipment Download PDFInfo
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Abstract
本发明实施例提供一种变电站充油设备的渗漏监测系统、方法，属于变电站监测技术领域。所述变电站充油设备的渗漏监测系统包括：油滴传感器，用于检测变电站充油设备所漏油滴以产生脉冲信号；以及监测单元，电性连接于所述油滴传感器，用于根据所述脉冲信号计算获得漏油速率，基于所述变电站充油设备所在地的天气信息、所述漏油速率以及预设定的预警漏油阈值判断所述变电站充油设备的漏油情况，并基于所述漏油情况执行告警。本发明能够自动完成变电站充油设备的渗漏监测，并且能够自动预警，避免充油设备的漏油造成的安全隐患。
Embodiments of the present invention provide a leakage monitoring system and method for substation oil-filled equipment, which belong to the technical field of substation monitoring. The leakage monitoring system of the oil-filled equipment in the substation includes: an oil drop sensor for detecting oil droplets leaked from the oil-filled equipment in the substation to generate a pulse signal; and a monitoring unit electrically connected to the oil drop sensor for according to the The pulse signal is calculated to obtain the oil leakage rate, and the oil leakage situation of the substation oil-filled equipment is judged based on the weather information of the location of the oil-filled equipment in the substation, the oil leakage rate and a preset early warning oil leakage threshold, and based on An alarm is executed for the oil leakage situation. The invention can automatically complete the leakage monitoring of the oil filling equipment of the substation, and can automatically give an early warning to avoid potential safety hazards caused by the oil leakage of the oil filling equipment.
Description
Technical Field
The invention relates to the technical field of transformer substation monitoring, in particular to a leakage monitoring system and method for transformer substation oil filling equipment.
Background
The transformer substation is used as a basic fulcrum of the whole power grid framework and is a foundation for ensuring the safe and reliable operation of the whole power grid system, and the oil-filled equipment always occupies an important position in the transformer substation. Common oil-filled equipment comprises an oil-immersed transformer, a mutual inductor, a circuit breaker, a reactor, a capacitor and the like.
When oil filling equipment of a transformer substation leaks, the oil leakage rate can be suddenly changed due to changes of load, environment temperature, sealing conditions and the like, so that the insulation of the equipment is reduced, and then alarm, tripping, even explosion and ignition occur, and operation and maintenance personnel cannot pay attention to the oil leakage defect condition of the equipment in real time due to reasons such as inspection periods and the like, the defects are usually in process development, the leakage phenomenon is continuously developed and expanded, and a large potential safety hazard can be generated to a power grid system.
At present, aiming at the problem of oil leakage of oil-filled equipment, the sealing rubber gasket of the oil-filled equipment with better material is adopted mainly from the aspects of manufacturing and installing quality of the oil-filled equipment. Although the leakage problem of the oil-filled equipment of the transformer substation is relieved, the safety problem of oil leakage of the oil-filled equipment is not solved. The existing method for monitoring the oil leakage of the oil filling equipment of the transformer substation has the following problems: 1. mainly through manual inspection, the oil leakage condition cannot be determined in time; 2. the simple oil leakage monitoring structure is easily influenced by weather to cause inaccurate detection; the problem of oil leakage of oil filling equipment has certain influence on the safe and stable operation of the oil filling equipment of a power grid system.
Disclosure of Invention
The leakage monitoring system and the method of the transformer substation oil filling equipment can automatically complete leakage monitoring of the transformer substation oil filling equipment, can automatically perform early warning, and avoid potential safety hazards caused by oil leakage of the oil filling equipment.
In order to achieve the above object, an embodiment of the present invention provides an oil drop sensor, configured to detect oil drops leaking from oil filling equipment of a substation to generate a pulse signal; and the monitoring unit is electrically connected with the oil drop sensor and used for calculating and obtaining the oil leakage rate according to the pulse signal, judging the oil leakage condition of the oil filling equipment of the transformer substation based on the weather information of the location of the oil filling equipment of the transformer substation, the oil leakage rate and a preset early warning oil leakage threshold value, and executing warning based on the oil leakage condition.
Preferably, the monitoring unit comprises: a processor and a server; the processor is used for calculating and obtaining an oil leakage rate according to the pulse signal, receiving the early warning oil leakage threshold value from the server, and sending a warning signal to the server when the oil leakage rate is greater than the early warning oil leakage threshold value; and the server is used for receiving the oil leakage rate from the oil drop sensor, judging whether the oil leakage rate calculated and obtained by the processor is the actual oil leakage rate or not based on rainfall data shown by weather information of the location of the transformer substation oil filling equipment, and executing alarm under the condition that the oil leakage rate calculated and obtained by the processor is the actual oil leakage rate and an alarm signal from the processor is received.
Preferably, the server includes: a determination module configured to: when the rainfall corresponding to the rainfall data is greater than a preset rainfall threshold and the oil leakage rate is greater than a preset normal oil leakage threshold, judging that the oil leakage rate calculated and obtained by the processor is not the actual oil leakage rate; and the processor is used for judging that the oil leakage rate calculated and obtained by the processor is the actual oil leakage rate under the condition that the rainfall corresponding to the rainfall data is less than a preset rainfall threshold value and the oil leakage rate is greater than a preset normal oil leakage threshold value.
Preferably, the server includes: the threshold setting module is used for determining the early warning oil leakage threshold based on the historical oil leakage information of the type of the transformer substation oil filling equipment and the application scene of the transformer substation oil filling equipment; the information display module is used for displaying the equipment state of the transformer substation oil filling equipment, the alarm record and the control corresponding to the information query; and the control corresponding to the information query is configured to receive a click instruction of a user and show the oil leakage rate of the transformer substation oil filling equipment and the total oil leakage amount corresponding to the oil leakage rate within a preset time period.
Preferably, an NB-IoT communication module is configured between the processor and the server.
Preferably, the leakage monitoring system of the substation oil filling equipment further comprises: and the human-computer interaction interface is used for receiving a selection instruction of a user and displaying the oil leakage condition of the transformer substation oil filling equipment and the oil leakage rate of the transformer substation oil filling equipment corresponding to the selection instruction.
Preferably, the leakage monitoring system of the substation oil filling equipment further comprises: the data storage module is used for storing the oil leakage rate of the oil drop sensor; the power supply module is used for supplying power to the oil drop sensor and the monitoring unit; wherein the power supply module includes: the device comprises a power supply voltage reduction circuit for reducing the voltage of the mains supply and a standby battery for supplying power to the oil drop sensor and the monitoring unit.
In addition, the invention also provides a leakage monitoring method of the transformer substation oil filling equipment, which comprises the following steps: acquiring the oil leakage rate of oil filling equipment of a transformer substation; judging the oil leakage condition of the transformer substation oil filling equipment based on weather information of the location of the transformer substation oil filling equipment, the oil leakage rate and a preset early warning oil leakage threshold value, and executing warning based on the oil leakage condition; and the early warning oil leakage threshold value is related to historical oil leakage information of the type of the transformer substation oil filling equipment and an application scene of the transformer substation oil filling equipment.
Preferably, the judging the oil leakage situation of the transformer substation oil filling equipment based on the weather information of the location of the transformer substation oil filling equipment, the oil leakage rate and a preset early warning oil leakage threshold value, and executing an alarm based on the oil leakage situation includes: sending an alarm signal when the obtained oil leakage rate is greater than the early warning oil leakage threshold value; judging whether the obtained oil leakage rate is the actual oil leakage rate or not based on rainfall data shown by weather information of the location of the transformer substation oil filling equipment; and executing an alarm in the case that the obtained oil leakage rate is the actual oil leakage rate and the alarm signal is received.
Preferably, the judging whether the obtained oil leakage rate is the actual oil leakage rate or not based on rainfall data shown by weather information of the location of the substation oil filling equipment includes: when the rainfall corresponding to the rainfall data is greater than a preset rainfall threshold and the oil leakage rate is greater than a preset normal oil leakage threshold, judging that the obtained oil leakage rate is not the actual oil leakage rate; and when the rainfall corresponding to the rainfall data is smaller than a preset rainfall threshold value and the oil leakage rate is larger than a preset normal oil leakage threshold value, judging that the obtained oil leakage rate is the actual oil leakage rate.
In addition, the invention also provides a leakage monitoring system of the transformer substation oil filling equipment, which comprises: the acquisition unit is used for acquiring the oil leakage rate of the oil filling equipment of the transformer substation; the warning unit is used for judging the oil leakage condition of the transformer substation oil filling equipment based on weather information of the location of the transformer substation oil filling equipment, the oil leakage rate and a preset early warning oil leakage threshold value, and executing warning based on the oil leakage condition; and the early warning oil leakage threshold value is related to historical oil leakage information of the type of the transformer substation oil filling equipment and an application scene of the transformer substation oil filling equipment.
Preferably, the alarm unit includes: the signal sending module is used for sending an alarm signal when the obtained oil leakage rate is greater than the early-warning oil leakage threshold value; the actual oil leakage rate judging module is used for judging whether the obtained oil leakage rate is the actual oil leakage rate or not based on rainfall data shown by weather information of the location of the transformer substation oil filling equipment; and the warning module is used for executing warning under the condition that the obtained oil leakage rate is the actual oil leakage rate and the warning signal is received.
Preferably, the actual oil leakage rate determination module includes: the first judgment submodule is used for judging that the obtained oil leakage rate is not the actual oil leakage rate under the condition that the rainfall corresponding to the rainfall data is greater than a preset rainfall threshold and the oil leakage rate is greater than a preset normal oil leakage threshold; and the second judgment submodule is used for judging that the obtained oil leakage rate is the actual oil leakage rate under the condition that the rainfall corresponding to the rainfall data is smaller than a preset rainfall threshold value and the oil leakage rate is greater than a preset normal oil leakage threshold value.
In addition, the invention also provides a leakage monitoring system of the transformer substation oil filling equipment, which comprises: the acquisition unit is used for acquiring the oil leakage rate of the oil filling equipment of the transformer substation; the warning unit is used for judging the oil leakage condition of the transformer substation oil filling equipment based on weather information of the location of the transformer substation oil filling equipment, the oil leakage rate and a preset early warning oil leakage threshold value, and executing warning based on the oil leakage condition; and the early warning oil leakage threshold value is related to historical oil leakage information of the type of the transformer substation oil filling equipment and an application scene of the transformer substation oil filling equipment.
Preferably, the alarm unit includes: the signal sending module is used for sending an alarm signal when the obtained oil leakage rate is greater than the early-warning oil leakage threshold value; the actual oil leakage rate judging module is used for judging whether the obtained oil leakage rate is the actual oil leakage rate or not based on rainfall data shown by weather information of the location of the transformer substation oil filling equipment; and the warning module is used for executing warning under the condition that the obtained oil leakage rate is the actual oil leakage rate and the warning signal is received.
Preferably, the actual oil leakage rate determination module includes: the first judgment submodule is used for judging that the obtained oil leakage rate is not the actual oil leakage rate under the condition that the rainfall corresponding to the rainfall data is greater than a preset rainfall threshold and the oil leakage rate is greater than a preset normal oil leakage threshold; and the second judgment submodule is used for judging that the obtained oil leakage rate is the actual oil leakage rate under the condition that the rainfall corresponding to the rainfall data is smaller than a preset rainfall threshold value and the oil leakage rate is greater than a preset normal oil leakage threshold value. In addition, the invention also provides a machine-readable storage medium, wherein the machine-readable storage medium is stored with instructions, and the instructions are used for enabling a machine to execute the leakage monitoring method for the substation oil filling equipment.
Through the technical scheme, the leakage monitoring system and the leakage monitoring method of the transformer substation oil filling equipment realize automatic monitoring of the oil leakage condition of the transformer substation oil filling equipment by utilizing the matching of the monitoring unit and the oil drop sensor, do not need manual realization, and can avoid error early warning of oil leakage according to weather conditions. According to the final judgment of the oil leakage condition, the alarm is executed when the oil leakage really exists, so that the potential safety hazard of the oil leakage to the oil filling equipment of the transformer substation is effectively avoided, the inspection efficiency of workers is improved, and the workload of operation and maintenance personnel is reduced.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a block diagram illustrating a leakage monitoring system for a substation oil-fill apparatus of the present invention;
FIG. 2 is a circuit diagram of a CPU module of the oil-filled equipment oil leakage monitoring system;
FIG. 3a is a clock circuit diagram of a microprocessor module of the oil-filled equipment oil leakage monitoring system;
FIG. 3b is a circuit diagram of a microprocessor module reset of the oil-filled equipment oil leakage monitoring system;
fig. 4 is a circuit diagram of an oil drop collection module of the oil-filled equipment oil leakage monitoring system;
FIG. 5 is a circuit diagram of an NB-IoT communication module of the oil-filled equipment oil leakage monitoring system;
FIG. 6 is a circuit diagram of an NB-IoT card installation module of the oil-filled equipment oil leakage monitoring system;
FIG. 7 is a circuit diagram of a data storage module of the oil-filled equipment oil leakage monitoring system;
FIG. 8a is a circuit diagram of a power supply alarm module of the oil-filled equipment oil leakage monitoring system;
FIG. 8b is a circuit diagram of a low voltage alarm module of the oil-filled equipment oil leakage monitoring system;
fig. 9 is a flow chart of a leakage monitoring method of the substation oil filling equipment; and
fig. 10 is a block diagram illustrating an integrated substation oil-filled equipment leakage monitoring system of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a block diagram of a leakage monitoring system of a transformer substation oil filling device according to the present invention, and as shown in fig. 1, the leakage monitoring system of the transformer substation oil filling device includes: the oil drop sensor is used for detecting oil drops leaked by the oil filling equipment of the transformer substation to generate pulse signals; and the monitoring unit is electrically connected with the oil drop sensor, is used for calculating and obtaining the oil leakage rate according to the pulse signal, is used for judging the oil leakage condition of the transformer substation oil filling equipment based on the weather information of the location of the transformer substation oil filling equipment, the oil leakage rate and a preset early warning oil leakage threshold value, and executes alarm based on the oil leakage condition.
The weather information mainly shows weather conditions, such as sunny days, rainy and snowy days and the like, and also comprises rainfall capacity conditions, wherein the rainfall capacity in cloudy days on sunny days is 0; the oil leakage condition of the substation oil filling equipment is used for indicating the oil leakage amount and explaining whether oil leakage occurs or not, and whether early warning needs to be executed or not is also included.
Preferably, as shown in fig. 10, fig. 10 is a block diagram of the whole; the monitoring unit may include: a processor and a server; the processor is used for calculating and obtaining an oil leakage rate according to the pulse signal, receiving the early warning oil leakage threshold value from the server, and sending a warning signal to the server when the oil leakage rate is greater than the early warning oil leakage threshold value; and the server is used for receiving the oil leakage rate from the oil drop sensor, judging whether the oil leakage rate calculated and obtained by the processor is the actual oil leakage rate or not based on rainfall data shown by weather information of the location of the transformer substation oil filling equipment, and executing alarm under the condition that the oil leakage rate calculated and obtained by the processor is the actual oil leakage rate and an alarm signal from the processor is received.
The processor is configured to process data, for example, determine that an oil leakage rate is greater than a threshold value of the early warning oil leakage. FIG. 2 is a diagram of a processor of the present invention, which is described in more detail below using a microprocessor. The microprocessor adopts STM32F103C8T6 as CPU, the chip U7 is an integrated circuit of a 32-bit embedded microcontroller, the size is small, the function is strong, the peripheral equipment comprises a crystal oscillator and the like, and the input voltage bit is 3.3V. Fig. 3a shows a clock circuit of a microprocessor, which includes a crystal oscillator CY1, capacitors C25, C26, wherein two terminals of CY1 are connected to C25 and C26, respectively, an input terminal is connected to pin OSC _ XI of the CPU, and an output terminal is connected to pin OSC _ XO of the CPU, for providing a clock signal to the CPU. Fig. 3b shows a reset circuit of a microprocessor module, which includes a resistor R1, a capacitor C1, and a reset switch, wherein one end of the reset switch is connected to a pin NRST of the microprocessor, and the other end of the reset switch is connected to a system voltage of 3.3V, which is used as an input voltage, and the reset switch completes the reset operation.
As described above, the drop sensor is a module, and as shown in FIG. 4, the drop sensor is connected to the CPU via PUL1, which will generate 1 pulse signal PUL1 when there is a drop. The CPU checks the signal to determine that oil drops pass through the oil drop sensor, and the CPU can determine oil leakage rate information and total oil drop information in a certain time period through calculation.
Preferably, the server may be a mobile phone or a computer, and is configured to display or perform calculation and analysis, and further configured to obtain weather information, where the server is configured to determine whether the oil leakage rate is reasonable based on rainfall data and the oil leakage rate shown in the weather information of the location of the oil filling equipment of the transformer substation, that is, determine whether the oil leakage rate calculated and obtained by the processor is an actual oil leakage rate, where the server includes: a determination module configured to:
the server is configured to: when the rainfall corresponding to the rainfall data is greater than a preset rainfall threshold and the oil leakage rate is greater than a preset normal oil leakage threshold by 12 drops/min, judging that the oil leakage rate is unreasonable, namely judging that the oil leakage rate calculated and obtained by the processor is not the actual oil leakage rate;
and when the rainfall corresponding to the rainfall data is less than a preset rainfall threshold (including 0, if the rainfall is 0, no rainfall is displayed), and the oil leakage rate is greater than a preset normal oil leakage threshold by 12 drops/min, judging that the oil leakage rate is reasonable, namely judging that the oil leakage rate calculated and obtained by the processor is the actual oil leakage rate. Wherein the judging module is a virtual program module of the execution server, and executes the judging process
The normal oil leakage threshold value of the invention has no relation with the early warning oil leakage threshold value, but in general, the normal oil leakage threshold value can be set to be equal to the early warning oil leakage threshold value.
Preferably, the server includes: the threshold setting module is used for determining the early warning oil leakage threshold based on the historical oil leakage information of the type of the transformer substation oil filling equipment and the application scene of the transformer substation oil filling equipment, wherein the early warning oil leakage threshold is configured to be related to both the historical oil leakage information of the type of the transformer substation oil filling equipment and the application scene of the transformer substation oil filling equipment, and the leakage monitoring system of the transformer substation oil filling equipment can be adapted to various different scenes and different transformer substation oil filling equipment for use through the setting, wherein the application scenes can be different working modes, such as oil unloading, oil filtering and the like, and the threshold values of the transformer substation oil filling equipment with different oil leakage types can be changed accordingly. Taking conventional substation oil filling equipment as an example, the early warning oil leakage threshold value can be set to be 12 drops/min; the information display module is used for displaying the equipment state of the transformer substation oil filling equipment, the alarm record and the control corresponding to the information query; and the control corresponding to the information query is configured to receive a click instruction of a user and show the oil leakage rate of the transformer substation oil filling equipment and the total oil leakage amount corresponding to the oil leakage rate within a preset time period.
Preferably, an NB-IoT communication module is configured between the processor and the server. As shown in fig. 6, the NB-IoT card installation module, J6 is a SIM card socket, which is used to insert an NB-IoT card, and is connected to the NB-IoT communication module through SIM _ RST, SIM _ LCK, and SIM _ DATA, and communication DATA between the system and the server (handset APP) is connected through UART3_ TX and UART3_ RX.
Preferably, the leakage monitoring system of the substation oil filling equipment further comprises: and the human-computer interaction interface is used for receiving a selection instruction of a user and displaying the oil leakage condition of the transformer substation oil filling equipment and the oil leakage rate of the transformer substation oil filling equipment corresponding to the selection instruction.
Preferably, the leakage monitoring system of the substation oil filling equipment further comprises:
the data storage module is used for storing the oil leakage rate of the oil drop sensor; as shown in fig. 7, the AT24C256N is adopted as the data storage module, the chip has the characteristics of compact structure, large storage capacity and the like, and is connected with the CCPU through the SCL and the SDA, so that data can be quickly read and stored, and the data can still be stored after power failure.
The power supply module is used for supplying power to the oil drop sensor and the monitoring unit; wherein the power supply module includes: the device comprises a power supply voltage reduction circuit for converting mains supply voltage into direct current voltage and a standby battery for supplying power to the oil drop sensor and the monitoring unit. The power module comprises a power voltage reduction circuit and a standby lithium battery, wherein the power voltage reduction circuit is used for converting 220V alternating current into 3.3V direct current and supplying power to the system and the standby battery. As shown in figure 8a, for the power supply circuit, J9 connects power step-down circuit, reserve lithium cell, is normally supplied power by power step-down circuit directly, after power down of power step-down circuit, then has reserve lithium cell power supply, guarantees the reliability of system's power supply. As shown in fig. 8b, in order to provide a low voltage alarm circuit for power supply, V _ CHECK is connected to the CPU for detecting the power supply voltage, the power supply voltage is divided by two 100K resistors, and when the voltage detected by V _ CHECK is less than 1.5V, it is determined that the power supply voltage is low, and the CPU sends a low voltage alarm signal.
The information display module mainly comprises equipment state, alarm records, local weather condition and oil leakage rate information inquiry, wherein the equipment state can display whether the equipment is on line or not, the equipment sends out alarm information when the equipment is not on line, the alarm records display the alarm information and date within a period of time, the equipment disconnection alarm and the oil leakage alarm are mainly included, and the local weather condition can display the weather condition of the location of the monitored equipment in real time. The oil leakage rate information query can display the oil leakage rate and the total number of oil drops in each unit time, provide basis for setting threshold values of different oil filling equipment, and record the total number of the oil drops in a period of time (one month or three months), so that the oil leakage defect of the oil filling equipment can be conveniently and timely processed.
The server (mobile phone APP) can flexibly set a threshold value of oil leakage rate according to the type and the condition of the oil-filled equipment, comprehensively judges the oil leakage condition of the oil-filled equipment by combining information such as whether rainwater exists locally and information such as oil leakage rate uploaded by the NB-IoT communication module, and sends an alarm signal to the server (mobile phone APP) through the NB-IoT communication module when the oil leakage rate is judged to exceed the threshold value so as to inform operation and maintenance personnel.
Taking the oil leakage of a #1 transformer of a certain 110kV transformer substation as an example, the working process of the oil-filled equipment leakage monitoring system is as follows: when an operation and maintenance person patrols, finds that oil leakage occurs at a certain part of a #1 transformer, but the oil leakage rate does not exceed 12 drops/min specified in the operation regulation of the transformer, the operation and maintenance person places the oil-filled equipment leakage detection device at the oil leakage part of the transformer for real-time monitoring, and sets a threshold value to be 12 drops/min, specifically, the operation and maintenance person places the water drop and oil drop detection sensor 1 at the lower end of the oil leakage part for detecting the oil leakage rate, and judges whether rainwater exists according to the local weather condition if the oil leakage rate of the oil leakage part of the transformer exceeds 12 drops/min, if rainwater exists, a server (a mobile phone APP) sends the rainwater to a microprocessor through an NB-IoT communication module to enable the monitoring device to enter a standby state until the rainwater stops, if no rainwater exists, the oil leakage part of the transformer is judged to be abnormal, and sending alarm information to inform operation and maintenance personnel to check the operation and maintenance personnel on site. By adopting the monitoring system, the device can be prevented from mistakenly alarming due to rainwater weather, and the sudden change of the oil leakage rate can be effectively avoided, so that operation and maintenance personnel can not find out the insulation reduction of the equipment caused by the sudden change of the oil leakage rate in time, and further, the power grid accidents such as alarming, tripping, even explosion, fire and the like can be caused.
In addition, the present invention also provides a leakage monitoring method for a transformer substation oil filling device, as shown in fig. 9, the leakage monitoring method for the transformer substation oil filling device includes:
s901, acquiring the oil leakage rate of oil filling equipment of the transformer substation;
s902, judging the oil leakage condition of the transformer substation oil filling equipment based on weather information of the location of the transformer substation oil filling equipment, the oil leakage rate and a preset early warning oil leakage threshold value, and executing warning based on the oil leakage condition; the early warning oil leakage threshold value is related to historical oil leakage information of the type of the transformer substation oil filling equipment and an application scene of the transformer substation oil filling equipment.
Preferably, the judging the oil leakage situation of the transformer substation oil filling equipment based on the weather information of the location of the transformer substation oil filling equipment, the oil leakage rate and a preset early warning oil leakage threshold value, and executing an alarm based on the oil leakage situation includes:
sending an alarm signal when the obtained oil leakage rate is greater than the early warning oil leakage threshold value;
judging whether the obtained oil leakage rate is the actual oil leakage rate or not based on rainfall data shown by weather information of the location of the transformer substation oil filling equipment;
and executing an alarm in the case that the obtained oil leakage rate is the actual oil leakage rate and the alarm signal is received.
Preferably, the judging whether the obtained oil leakage rate is the actual oil leakage rate or not based on rainfall data shown by weather information of the location of the substation oil filling equipment includes:
when the rainfall corresponding to the rainfall data is greater than a preset rainfall threshold and the oil leakage rate is greater than a preset normal oil leakage threshold, judging that the obtained oil leakage rate is not the actual oil leakage rate; and
and when the rainfall corresponding to the rainfall data is smaller than a preset rainfall threshold value and the oil leakage rate is larger than a preset normal oil leakage threshold value, judging that the obtained oil leakage rate is the actual oil leakage rate.
Compared with the prior art, the leakage monitoring method of the transformer substation oil filling equipment has the same distinguishing technical characteristics and technical effects as the leakage monitoring system of the transformer substation oil filling equipment, and is not repeated herein.
In addition, the invention also provides a leakage monitoring system of the transformer substation oil filling equipment, which comprises: the acquisition unit is used for acquiring the oil leakage rate of the oil filling equipment of the transformer substation; the warning unit is used for judging the oil leakage condition of the transformer substation oil filling equipment based on weather information of the location of the transformer substation oil filling equipment, the oil leakage rate and a preset early warning oil leakage threshold value, and executing warning based on the oil leakage condition; and the early warning oil leakage threshold value is related to historical oil leakage information of the type of the transformer substation oil filling equipment and an application scene of the transformer substation oil filling equipment.
Preferably, the alarm unit includes: the signal sending module is used for sending an alarm signal when the obtained oil leakage rate is greater than the early-warning oil leakage threshold value; the actual oil leakage rate judging module is used for judging whether the obtained oil leakage rate is the actual oil leakage rate or not based on rainfall data shown by weather information of the location of the transformer substation oil filling equipment; and the warning module is used for executing warning under the condition that the obtained oil leakage rate is the actual oil leakage rate and the warning signal is received.
Preferably, the actual oil leakage rate determination module includes: the first judgment submodule is used for judging that the obtained oil leakage rate is not the actual oil leakage rate under the condition that the rainfall corresponding to the rainfall data is greater than a preset rainfall threshold and the oil leakage rate is greater than a preset normal oil leakage threshold; and the second judgment submodule is used for judging that the obtained oil leakage rate is the actual oil leakage rate under the condition that the rainfall corresponding to the rainfall data is smaller than a preset rainfall threshold value and the oil leakage rate is greater than a preset normal oil leakage threshold value.
Compared with the prior art, the leakage monitoring system of the transformer substation oil filling equipment has the same distinguishing technical characteristics and technical effects as the leakage monitoring method of the transformer substation oil filling equipment, and is not repeated herein. In addition, the invention also provides a machine-readable storage medium, wherein the machine-readable storage medium is stored with instructions, and the instructions are used for enabling a machine to execute the leakage monitoring method for the substation oil filling equipment.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the scope of protection thereof, although the present invention is described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art; after reading this disclosure, those skilled in the art will be able to make various changes, modifications and equivalents to the embodiments of the invention, which fall within the scope of the appended claims.
Claims (12)
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| CN115356049A (en) * | 2022-09-06 | 2022-11-18 | 广东电网有限责任公司 | Transformer oil leakage early warning method and device, electronic equipment and storage medium |
| CN116429353A (en) * | 2023-04-04 | 2023-07-14 | 华能澜沧江水电股份有限公司 | Remote diagnosis method for oil leakage of multi-oil-tank oil storage system of hydraulic generator |
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