CN215300270U - Intelligent control circuit for unattended transformer substation - Google Patents
Intelligent control circuit for unattended transformer substation Download PDFInfo
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- CN215300270U CN215300270U CN202120356629.5U CN202120356629U CN215300270U CN 215300270 U CN215300270 U CN 215300270U CN 202120356629 U CN202120356629 U CN 202120356629U CN 215300270 U CN215300270 U CN 215300270U
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Abstract
The utility model discloses an intelligent control circuit for unmanned on duty transformer substation, including the control unit, vibration detection subsystem, temperature detection subsystem, ventilation machine current detection subsystem, air volume detection subsystem, display device, communication subsystem. The control unit is respectively connected with the vibration detection subsystem, the temperature detection subsystem, the ventilation motor current detection subsystem, the ventilation quantity detection subsystem, the communication subsystem and the display device; and the controller is used for controlling the working state of the ventilation motor according to the detection result of each detection subsystem. Each detection subsystem comprises a signal acquisition circuit and is used for detecting various parameters of a ventilation motor transformer and controlling whether the ventilation motor is started or not by detecting the temperature of the transformer; when the ventilation motor is started to work, various parameters of the ventilation motor are detected in real time, various performances of the ventilation motor are guaranteed to be normal, and intelligent control over a transformer substation is achieved.
Description
Technical Field
The utility model belongs to the technical field of the intelligent control technique of transformer substation and specifically relates to an intelligent control circuit for unmanned on duty transformer substation is related to.
Background
At present, more and more unmanned transformer substations are provided, intelligent control of the unmanned transformer substations is more and more perfect, at present, intelligent control of transformer parameters is focused, an air draft motor and an air induction motor are only controlled to be turned on or turned off, an alarm is given when the room temperature of the transformer exceeds a temperature set value, a ventilation motor switch is turned on when the room temperature is high, the ventilation motor works, ventilation volume is increased, the ventilation motor switch is turned off when the room temperature meets requirements, and the ventilation system stops working.
However, to unattended transformer substation, after the ventilation motor and the induced draft motor work for a period of time, various abrasion can be generated, and the abrasion can influence the working state of the ventilation motor and the service life of the ventilation motor, so that the transformer substation ventilation motor is detected, the transformer substation is guaranteed to work normally, and the problem to be solved at present is urgently solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an intelligent control circuit for an unattended transformer station, which controls whether a ventilation motor is started or not by detecting the temperature of a transformer; when the ventilation motor is started to work, all parameters of the ventilation motor are detected, the state of the ventilation motor is monitored in real time, the ventilation motor is timely processed when a fault occurs, all performances of the ventilation motor are guaranteed to be normal, and intelligent control over a transformer substation is achieved.
The above technical scheme of the utility model can be realized through following technical scheme to the purpose:
the utility model provides an intelligent control circuit for unmanned on duty transformer substation, includes vibration detection subsystem, the control unit, and the vibration detection subsystem for detect the operating condition of motor bearing in the ventilation system of transformer substation, the control unit controls according to the testing result.
The utility model discloses further set up to: the temperature detection subsystem comprises an indoor temperature detection circuit and a motor bearing temperature detection circuit, the indoor temperature detection circuit is used for detecting the temperature of the transformer, the motor bearing temperature detection circuit is used for detecting the temperature of the motor bearing, and the temperature detection subsystem is controlled according to a detection result.
The utility model discloses further set up to: the controller also comprises a motor current detection subsystem for detecting the motor current and determining whether the working state of the motor is normal, wherein the motor current detection subsystem comprises a motor current acquisition circuit and a motor current amplification circuit.
The utility model discloses further set up to: the controller also comprises a ventilation quantity detection subsystem used for detecting whether the ventilation quantity is normal or not and controlling according to the detection result.
The utility model discloses further set up to: each detection subsystem comprises a signal acquisition circuit and an amplification circuit, the signal acquisition circuit is connected with the amplification circuit, the amplification circuit is connected with the control unit, the amplification circuit is used for amplifying each detection signal, and the control unit outputs a corresponding control signal according to a detection result.
The utility model discloses further set up to: the controller also comprises a display circuit for displaying the working state of the transformer and the working state of the motor of the ventilation system.
The utility model discloses further set up to: the controller also comprises a communication circuit which is used for sending the detection parameters to the remote terminal or receiving the control command signals sent by the remote terminal and controlling according to the control command signals.
The utility model discloses further set up to: the driving circuit is used for driving the motor to work according to the control signal of the control unit.
The utility model discloses further set up to: the alarm circuit is used for alarming when abnormality is detected.
Compared with the prior art, the beneficial technical effects of this application do:
1. various operation parameters of the ventilation motor are detected through detection circuits of the equipment, so that the normal performance of the ventilation motor is ensured, and the intelligent control of a transformer substation is realized;
2. further, this application guarantees that ventilation system state is good through the air volume that detects ventilation system, provides the guarantee for transformer substation's intelligent control.
Drawings
Fig. 1 is a schematic diagram of a substation intelligent control system according to a specific embodiment of the present application;
fig. 2 is a schematic diagram of a control circuit according to an embodiment of the present application.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Detailed description of the preferred embodiment
The unattended transformer substation comprises a transformer assembly and a ventilation system, wherein the ventilation system comprises an induced draft subsystem, an induced draft subsystem and a controller, and the controller is connected with the induced draft subsystem and the induced draft subsystem respectively and used for detecting and controlling the induced draft subsystem and the induced draft subsystem. The transformer assembly comprises a transformer and a radiator, and the ventilation system is used for radiating the transformer assembly.
The utility model provides an intelligent control circuit for unmanned on duty transformer substation, as shown in FIG. 1, the controller includes the control unit, vibrates detection subsystem, temperature detection subsystem, ventilation motor current detection subsystem, air volume detection subsystem, display device, communication subsystem. The control unit is respectively connected with the vibration detection subsystem, the temperature detection subsystem, the ventilation motor current detection subsystem, the ventilation quantity detection subsystem, the communication subsystem and the display device; and the control system is used for controlling the working state of the ventilation system according to the detection result of each detection subsystem.
The vibration detection subsystem comprises vibration sensors which are arranged on the ventilation motors and used for detecting whether the ventilation motors vibrate or not and confirming whether the operation of the blades of the ventilation motors and the bearings is balanced or not.
The temperature detection subsystem comprises a plurality of temperature sensors, wherein one temperature sensor is arranged on each ventilation motor rotating shaft, after the bearing is damaged, the temperature of the bearing rises due to the fact that friction becomes large, and the temperature sensors are used for detecting whether the ventilation motor bearing is overheated or not so as to confirm the abrasion degree of the ventilation motor bearing.
A temperature sensor is arranged on the transformer and used for detecting the temperature of the transformer.
The ventilation motor current sensor is arranged at the current input end of the ventilation motor and used for detecting the driving current of the ventilation motor so as to confirm whether the blades of the ventilation motor rotate normally or not and whether the ventilation motor works normally or not.
The ventilation quantity detection subsystem comprises a wind speed and wind quantity detection sensor and is used for detecting whether a ventilation opening of the induced air channel is blocked or not.
Induced air and convulsions intelligent control includes:
the temperature detection subsystem detects the temperature of the transformer in real time, and the controller outputs a driving control signal according to the temperature of the transformer to determine whether to start the induced draft motor or/and the air draft motor or the number of the air draft motors.
After the ventilation motor is started, detecting whether the blades and the bearings of the ventilation motor vibrate or not, detecting whether the temperature of the bearings of the ventilation motor exceeds a set temperature or not, and detecting whether the current of the ventilation motor is normal or not.
And when the ventilation motor fault is detected, alarming is carried out, and the service life of the ventilation motor is judged according to the ventilation motor fault.
The display device displays the working state of each ventilation motor in real time, including the fault type,
the communication subsystem is used for transmitting the detected data to the remote terminal.
The control unit comprises a control chip, receives signals collected by the sensors of the vibration detection subsystem, the temperature detection subsystem, the ventilation motor current detection subsystem, the ventilation quantity detection subsystem and the subsystems, processes the received signals, judges whether the ventilation motor is started or not and the number of the started ventilation motors according to the signals, outputs control signals and controls the working state of the ventilation motor; when the ventilation motor works, detecting the temperature, vibration and current parameters of the ventilation motor, judging whether the ventilation motor breaks down or not according to the detection result, outputting the ventilation motor parameters to a display device, displaying the ventilation motor parameters in real time, judging the service life of the ventilation motor according to the ventilation motor faults and the like; and the communication subsystem transmits the output result of the control unit to the remote terminal.
In this application, the ventilation motor includes induced draft motor, convulsions motor.
In a specific embodiment of the present application, the number of the air suction motors is M, and the number of the air induction motors is N, wherein M, N are positive integers greater than 1.
According to the temperature of the transformer, the control circuit divides the temperature into K sections, and controls the air suction motor and the air induction motor with corresponding data to work according to the section to which the temperature of the transformer belongs, so that the air suction volume is increased when the temperature of the transformer is high, and is reduced when the temperature of the transformer is low, thereby saving energy and reducing cost.
Detailed description of the invention
The utility model provides an intelligent control circuit for unmanned on duty transformer substation, as shown in fig. 2, including control unit, temperature signal acquisition circuit 1, temperature signal acquisition circuit 2, vibration signal acquisition circuit, current signal acquisition circuit, air volume signal acquisition circuit, amplifier circuit 1-5, drive circuit, display circuit, communication circuit. The amplifying circuits 1-5 are used for filtering and amplifying corresponding signals.
The temperature detection subsystem comprises a temperature signal acquisition circuit 1 and an amplification circuit 1, wherein the output of the temperature signal acquisition circuit 1 is connected with the input of the amplification circuit 1, and the output of the amplification circuit 1 is connected with a control unit circuit and used for acquiring the temperature of the transformer.
The temperature detection subsystem further comprises a temperature signal acquisition circuit 2 and an amplifying circuit 2, wherein the output of the temperature signal acquisition circuit 2 is connected with the input of the amplifying circuit 2, and the output of the amplifying circuit 2 is connected with a control unit circuit and used for acquiring the temperature of bearings of the ventilation motors.
The ventilation quantity detection subsystems are mutually independent
The vibration detection subsystem comprises a vibration signal acquisition circuit and an amplification circuit 3, wherein the output of the vibration signal acquisition circuit is connected with the input of the amplification circuit 3, and the output of the amplification circuit 3 is connected with a control unit circuit and used for acquiring whether each ventilation motor shakes.
The ventilation motor current detection subsystem comprises a current signal acquisition circuit and an amplification circuit 4; the output of the current signal acquisition circuit is connected with the input of the amplifying circuit 4, and the output of the amplifying circuit 4 is connected with the control unit circuit and is used for acquiring whether the current of each ventilation motor is normal.
The ventilation quantity detection subsystem comprises a ventilation quantity signal acquisition circuit and an amplification circuit 5; the output of the ventilation quantity signal acquisition circuit is connected with the input of the amplifying circuit 5, and the output of the amplifying circuit 5 is connected with the control unit circuit and used for acquiring the ventilation quantity of the ventilation channel.
The control unit circuit receives the transformer temperature signal acquired by the temperature signal acquisition circuit 1, compares the transformer temperature signal with a transformer temperature set value, outputs a drive according to a comparison result, and controls whether the ventilation motor is started and how many ventilation motors are started.
After the ventilation motor is started, the temperature, the vibration and the current of the ventilation motor are detected, the detected temperature, the vibration and the current of the ventilation motor are compared with corresponding set values, whether the ventilation motor is abnormal or not is judged according to a comparison result, if the ventilation motor is abnormal, an alarm is given, parameters and the service life of the ventilation motor are judged according to abnormal conditions, and the ventilation motor is warned and replaced in time.
And simultaneously detecting the ventilation volume of the ventilation channel, comparing the ventilation volume with a set ventilation volume value, and if the ventilation volume is smaller than the set ventilation volume value, judging that the ventilation opening is blocked, and timely cleaning and increasing the ventilation volume.
The control unit circuit sends the relevant parameters to the display circuit for display and sends the relevant parameters to the remote terminal through the communication circuit.
The remote terminal sends a control signal to the control unit through the communication circuit, and remote control of the transformer substation is achieved.
The intelligent control circuit for the unattended transformer substation further comprises an alarm circuit, wherein the alarm circuit is connected with the control unit and used for alarming when abnormality is detected.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The utility model provides an intelligent control circuit for unmanned on duty transformer substation which characterized in that: the system comprises a vibration detection subsystem, a control unit and a vibration detection subsystem which are sequentially connected, wherein the vibration detection subsystem is used for detecting the working state of a motor bearing in a ventilation system of a transformer substation, and the control unit controls the motor bearing according to a detection result.
2. The intelligent control circuit for an unattended substation according to claim 1, wherein: the temperature detection subsystem comprises an indoor temperature detection circuit and a motor bearing temperature detection circuit, the indoor temperature detection circuit is used for detecting the temperature of the transformer, the motor bearing temperature detection circuit is used for detecting the temperature of the motor bearing, and the temperature detection subsystem is controlled according to a detection result.
3. The intelligent control circuit for an unattended substation according to claim 1, wherein: the controller also comprises a motor current detection subsystem for detecting the motor current and determining whether the working state of the motor is normal, wherein the motor current detection subsystem comprises a motor current acquisition circuit and a motor current amplification circuit.
4. The intelligent control circuit for an unattended substation according to claim 1, wherein: the controller also comprises a ventilation quantity detection subsystem used for detecting whether the ventilation quantity is normal or not and controlling according to the detection result.
5. The intelligent control circuit for an unmanned substation according to claim 1 or 2 or 3 or 4, wherein: each detection subsystem comprises a signal acquisition circuit and an amplification circuit, the signal acquisition circuit is connected with the amplification circuit, the amplification circuit is connected with the control unit, the amplification circuit is used for amplifying each detection signal, and the control unit outputs a corresponding control signal according to a detection result.
6. The intelligent control circuit for an unattended substation according to claim 1, wherein: the controller also comprises a display circuit for displaying the working state of the transformer and the working state of the motor of the ventilation system.
7. The intelligent control circuit for an unattended substation according to claim 1, wherein: the controller also comprises a communication circuit which is used for sending the detection parameters to the remote terminal or receiving the control command signals sent by the remote terminal and controlling according to the control command signals.
8. The intelligent control circuit for an unattended substation according to claim 1, wherein: the driving circuit is used for driving the motor to work according to the control signal of the control unit.
9. The intelligent control circuit for an unattended substation according to claim 1, wherein: the alarm circuit is used for alarming when abnormality is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120356629.5U CN215300270U (en) | 2021-02-06 | 2021-02-06 | Intelligent control circuit for unattended transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120356629.5U CN215300270U (en) | 2021-02-06 | 2021-02-06 | Intelligent control circuit for unattended transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215300270U true CN215300270U (en) | 2021-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120356629.5U Active CN215300270U (en) | 2021-02-06 | 2021-02-06 | Intelligent control circuit for unattended transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215300270U (en) |
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2021
- 2021-02-06 CN CN202120356629.5U patent/CN215300270U/en active Active
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