CN109921518A - A kind of electric power electric transformer remote monitor device - Google Patents
A kind of electric power electric transformer remote monitor device Download PDFInfo
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Abstract
The present invention provides a kind of electric power electric transformer remote monitor devices, comprising: intelligent controller, power supply module, data acquisition module, local information transmission module, remote monitoring center；For the difference of current similar product, the features such as integrated level of the present invention is high, safe and reliable, real-time is high, the long-range monitoring of key equipment state when electric power electric transformer operation can be achieved, automatic early-warning, obtains equipment failure state at status information real-time Transmission in real time.Monitoring capability and efficiency are improved, ensure that the safety of equipment work.
Description
Technical Field
The invention relates to the field of national power grid energy, in particular to a remote monitoring device for a power electronic transformer.
Background
The power grid is an important part related to national economic fate and national energy safety, and the power electronic transformer in the power grid equipment is used as a novel power electronic equipment, so that the political and economic significance is self-evident. At present, no special equipment exists in the market, and the internal and external states of the power electronic transformer can be monitored in real time and all-directionally, so that the normal work of the whole machine is guaranteed. Therefore, the development of such a remote monitoring device is particularly urgent, which is the original intention of the design of the present invention.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the remote monitoring equipment for the power electronic transformer can monitor the internal and external states of the power electronic transformer in real time and comprehensively during operation, and can ensure the normal operation of the whole machine.
The technical solution of the invention is as follows: a power electronic transformer remote monitoring device comprising: the system comprises an intelligent controller, a power supply module, a data acquisition module, a local information transmission module and a remote monitoring center; the data acquisition module is connected with the power electronic transformer and acquires the temperature of the power electronic transformer and the image data of a refrigeration waterway of the power electronic transformer; the temperature of the power electronic transformer is transmitted to the intelligent controller and the local information transmission module; transmitting image data of a refrigeration waterway of the power electronic transformer to a local information transmission module; the intelligent controller collects four-way voltage, four-way power and humidity of the power electronic transformer and receives the temperature of the power electronic transformer, the intelligent controller compares the four-way voltage with a corresponding local voltage preset value to judge whether to alarm or not, compares the four-way power with a corresponding local power preset value to judge whether to alarm or not, compares the humidity with a local humidity preset value to judge whether to alarm or not, compares the temperature with a local temperature preset value to judge whether to alarm or not, and stores and transmits the four-way voltage, the four-way power and the humidity for 2s in a circulating manner to the local information transmission module; the local information transmission module transmits the four-path voltage, the four-path power, the humidity, the temperature and the image data of the refrigeration waterway of the power electronic transformer to a remote monitoring center; the remote monitoring center comprises a man-machine interaction system, an information management system and a remote information transmission module, wherein the man-machine interaction system displays four paths of voltage, four paths of power, humidity, temperature and image data of a refrigeration waterway of the power electronic transformer; the information management system compares the four-way voltage with a corresponding voltage preset value to judge whether to alarm or not, compares the four-way power with a corresponding power preset value to judge whether to alarm or not, compares the humidity with a humidity preset value to judge whether to alarm or not, compares the temperature with a temperature preset value to judge whether to alarm or not, simultaneously stores the voltage, the power, the humidity, the temperature and the image data of a refrigeration waterway of the power electronic transformer in real time, and provides the functions of inquiring, counting and analyzing the image data of the refrigeration waterway of the voltage, the power, the humidity, the temperature and the power electronic transformer; the remote information transmission module receives the four-way voltage, the four-way power, the humidity, the temperature and the image data of the refrigeration waterway of the power electronic transformer and transmits the image data to the man-machine interaction system and the information management system; the power supply module supplies power for the intelligent controller, the information transmission module and the data acquisition module respectively.
In the remote monitoring equipment for the power electronic transformer, the data acquisition module comprises a thermal infrared imager and a camera; the thermal infrared imager collects the temperature of the power electronic transformer; the camera collects image data of a refrigeration waterway of the power electronic transformer.
In the above remote monitoring device for the power electronic transformer, the intelligent controller collects the four-way voltage of the power electronic transformer, and compares the four-way voltage with the corresponding local voltage preset value to judge whether to alarm or not, and the method comprises the following steps: the intelligent controller collects four paths of voltage of the power electronic transformer through the serial port, each path of voltage is compared with the corresponding local voltage preset value, and if one path of voltage is higher than the corresponding local voltage preset value, the intelligent controller gives an alarm through the voltage alarm circuit.
Among the above-mentioned power electronic transformer remote monitoring equipment, voltage alarm circuit includes: the LED driving circuit comprises a resistor R8, a resistor R15, a resistor R22, a resistor R33, a diode D4, a triode V4, an optocoupler U5 and a light emitting diode LED 2; the pin 1 of the resistor R8 is connected with the voltage +5V, the pin 2 of the resistor R8 is connected with the pin 1 of the resistor R15 and the pin 1 of the optocoupler U5, the pin 2 of the resistor R15 is connected with the pin 2 of the optocoupler U5 and the pin C of the triode V4, the pin 1 of the resistor R22 is connected with the CON function pin of the intelligent controller chip, the pin 2 of the resistor R22 is connected with the pin 1 of the resistor R33 and the pin B of the triode V4, the pin 2 of the resistor R33 is connected with the power ground, the pin E of the triode V4 is connected with the power ground, the pin 4 of the optocoupler U5 is connected with the +24V, the pin 3 of the optocoupler U5 is connected with the pin K of the diode D4 and the pin A of the LED2, the pin A of the diode D4 is connected with the VIN-, and the pin K of the LED2 is connected.
In the above remote monitoring device for the power electronic transformer, the four-path voltage of the power electronic transformer includes two paths of ac voltages and two paths of dc voltages, a local voltage preset value corresponding to one path of ac voltage is 12kv, a local voltage preset value corresponding to the other path of ac voltage is 456v, a local voltage preset value corresponding to one path of dc voltage is 412.5v, and a local voltage preset value corresponding to the other path of dc voltage is 825 v.
In the above remote monitoring device for the power electronic transformer, the intelligent controller collects four-way power of the power electronic transformer, and compares the four-way power with a corresponding local power preset value to determine whether to alarm or not, including the following steps: the intelligent controller collects four paths of power of the power electronic transformer through the serial port, each path of power is compared with a corresponding local power preset value, and if one path of power is higher than the corresponding local power preset value, an alarm is given through the power alarm circuit.
Among the above-mentioned power electronic transformer remote monitoring equipment, power alarm circuit includes: the LED driving circuit comprises a resistor R9, a resistor R16, a resistor R23, a resistor R34, a diode D5, a triode V5, an optocoupler U6 and a light emitting diode LED 3; the pin 1 of the resistor R9 is connected with the voltage +5V, the pin 2 of the resistor R9 is connected with the pin 1 of the resistor R16 and the pin 1 of the optocoupler U6, the pin 2 of the resistor R16 is connected with the pin 2 of the optocoupler U6 and the pin C of the triode V5, the pin 1 of the resistor R23 is connected with the CON function pin of the intelligent controller chip, the pin 2 of the resistor R23 is connected with the pin 1 of the resistor R34 and the pin B of the triode V5, the pin 2 of the resistor R34 is connected with the power ground, the pin E of the triode V5 is connected with the power ground, the pin 4 of the optocoupler U6 is connected with the +24V, the pin 3 of the optocoupler U6 is connected with the pin K of the diode D5 and the pin A of the LED3, the pin A of the diode D5 is connected with the VIN-, and the pin K of the LED3 is connected.
In the above remote monitoring device for the power electronic transformer, the four paths of power of the power electronic transformer include two paths of ac voltage power and two paths of dc voltage power, a preset value of local voltage power corresponding to one path of ac voltage power is 3.6Mw, a preset value of local voltage power corresponding to the other path of ac voltage power is 600Kw, a preset value of local voltage power corresponding to one path of dc voltage power is 600Kw, and a preset value of local voltage power corresponding to the other path of dc voltage power is 2.4 Mw.
In the above power electronic transformer remote monitoring device, the intelligent controller compares the temperature with the local temperature preset value to determine whether to alarm or not, and the method comprises the following steps: the intelligent controller compares the temperature with a local temperature preset value, and if the temperature is higher than the local temperature preset value, an alarm is given through a temperature alarm circuit. Wherein the local temperature preset value is 85 degrees.
Among the above-mentioned power electronic transformer remote monitoring equipment, temperature alarm circuit includes: the LED driving circuit comprises a resistor R10, a resistor R17, a resistor R24, a resistor R35, a diode D6, a triode V6, an optocoupler U7 and a light emitting diode LED 4; the pin 1 of the resistor R10 is connected with the voltage +5V, the pin 2 of the resistor R10 is connected with the pin 1 of the resistor R17 and the pin 1 of the optocoupler U7, the pin 2 of the resistor R17 is connected with the pin 2 of the optocoupler U7 and the pin C of the triode V6, the pin 1 of the resistor R24 is connected with the CON function pin of the intelligent controller chip, the pin 2 of the resistor R24 is connected with the pin 1 of the resistor R35 and the pin B of the triode V6, the pin 2 of the resistor R35 is connected with the power ground, the pin E of the triode V6 is connected with the power ground, the pin 4 of the optocoupler U7 is connected with the +24V, the pin 3 of the optocoupler U7 is connected with the pin K of the diode D6 and the pin A of the LED4, the pin A of the diode D6 is connected with the VIN-, and the pin K of the LED4 is connected.
In the above power electronic transformer remote monitoring device, the intelligent controller compares the humidity with the local humidity preset value to determine whether to alarm or not comprises the following steps: the intelligent controller compares the humidity with a local humidity preset value, and if the humidity is higher than the local humidity preset value, an alarm is given through a humidity alarm circuit. Wherein the local humidity preset value is 90%.
Among the above-mentioned power electronic transformer remote monitoring equipment, humidity alarm circuit includes: the voltage alarm circuit includes: the LED driving circuit comprises a resistor R11, a resistor R18, a resistor R25, a resistor R36, a diode D7, a triode V7, an optocoupler U8 and a light emitting diode LED 5; the pin 1 of the resistor R11 is connected with the voltage +5V, the pin 2 of the resistor R11 is connected with the pin 1 of the resistor R18 and the pin 1 of the optocoupler U8, the pin 2 of the resistor R18 is connected with the pin 2 of the optocoupler U8 and the pin C of the triode V7, the pin 1 of the resistor R25 is connected with the CON function pin of the intelligent controller chip, the pin 2 of the resistor R25 is connected with the pin 1 of the resistor R36 and the pin B of the triode V7, the pin 2 of the resistor R36 is connected with the power ground, the pin E of the triode V7 is connected with the power ground, the pin 4 of the optocoupler U8 is connected with the +24V, the pin 3 of the optocoupler U8 is connected with the pin K of the diode D7 and the pin A of the LED5, the pin A of the diode D7 is connected with the VIN-, and the pin K of the LED5 is connected.
In the above power electronic transformer remote monitoring device, the information management system compares the four-way voltage with the preset voltage value to judge whether to alarm or not includes the following steps: the information management system receives four paths of voltages of the power electronic transformer, each path of voltage is compared with a corresponding voltage preset value, and if one path of voltage is higher than the corresponding voltage preset value, an alarm is given.
In the above remote monitoring device for the power electronic transformer, the four paths of power of the power electronic transformer include two paths of ac voltages and two paths of dc voltages, a voltage preset value corresponding to one path of ac voltage is 12kv, a voltage preset value corresponding to the other path of ac voltage is 456v, a voltage preset value corresponding to one path of dc voltage is 412.5v, and a voltage preset value corresponding to the other path of dc voltage is 825 v.
In the above power electronic transformer remote monitoring device, the information management system compares the four-path power with the power preset value to determine whether to alarm or not includes the following steps: the information management system receives four paths of power of the power electronic transformer, each path of power is compared with a corresponding power preset value, and if one path of power is higher than the corresponding power preset value, an alarm is given.
In the above remote monitoring device for the power electronic transformer, the four paths of power of the power electronic transformer include two paths of ac voltage power and two paths of dc voltage power, a preset value of local voltage power corresponding to one path of ac voltage power is 3.6Mw, a preset value of local voltage power corresponding to the other path of ac voltage power is 600Kw, a preset value of local voltage power corresponding to one path of dc voltage power is 600Kw, and a preset value of local voltage power corresponding to the other path of dc voltage power is 2.4 Mw.
In the above power electronic transformer remote monitoring device, the information management system compares the temperature with the preset temperature value to determine whether to alarm or not comprises the following steps: the information management system compares the temperature with a preset temperature value, and if the temperature is higher than the preset temperature value, an alarm is given; wherein the preset temperature value is 85 degrees.
In the above power electronic transformer remote monitoring device, the information management system compares the humidity with the humidity preset value to determine whether to alarm or not comprises the following steps: the information management system compares the humidity with a preset humidity value, and if the humidity is higher than the preset humidity value, an alarm is given; wherein the humidity preset value is 90%.
Compared with the prior art, the invention has the advantages that:
(1) the intelligent controller can intelligently manage and transmit state information and image information, circularly store data in a local area, upload the data to a remote upper computer, give an alarm and lock a history record if parameters are out of tolerance, and has an alarm sound function.
(2) The invention transmits the image data of the refrigeration waterway of the four-way voltage, four-way power, humidity, temperature and power electronic transformer through the local information transmission module, and connects the remote information transmission module to realize the data communication with the remote monitoring center, thereby realizing the wireless communication function of data and image.
(3) Data needing attention on site mainly comprise four-way voltage, four-way power, humidity, temperature, image data of a refrigeration water path of a power electronic transformer and the like. The self-checking part of the power electronic transformer can complete the measurement of various parameters such as voltage, power, temperature and humidity, and the like, and the intelligent electronic transformer reads the parameters through the serial port of the intelligent controller, stores data in a local circulation mode, and simultaneously transmits the data to a remote end; the infrared thermal imager is used for monitoring the heating state of each copper plate, the over-temperature threshold is set locally for alarming, and meanwhile, information such as temperature and thermal imaging can be transmitted to a remote end; the invention utilizes the camera to collect waterway images and transmit the waterway images to the remote end, and whether water leakage exists is judged through the remote end image analysis.
(4) The remote monitoring center of the invention realizes the real-time monitoring of the equipment state information through the remote information transmission module and the man-machine interaction and information management system. The man-machine interaction mainly displays data such as four-way voltage, four-way power, humidity, temperature, image data of a refrigeration water path of the power electronic transformer and the like, judges whether the data are normal or not, simultaneously displays main operation records and fault information of software, and provides an entrance for user management, monitoring parameter configuration, historical records and fault inquiry. If the data is abnormal, an entrance with the function of clearing the alarm sound of the lower computer is provided. And displaying the numerical value of each parameter, and storing the numerical value for query and statistical analysis. The historical data can be used for inquiring and statistically analyzing various data according to types of time, monitoring points and the like; fault records can also be inquired; all the information is stored in a database and can be uniformly managed in the later period.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a block diagram of a power electronic transformer remote monitoring device of the present invention;
FIG. 2 is a flow chart of the intelligent controller software of the present invention;
FIG. 3 is a circuit diagram of the voltage alarm of the present invention;
FIG. 4 is a power alarm circuit diagram of the present invention;
FIG. 5 is a temperature alarm circuit diagram of the present invention;
FIG. 6 is a humidity alarm circuit diagram of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is a block diagram of a power electronic transformer remote monitoring device of the present invention. As shown in fig. 1, the remote monitoring device for the power electronic transformer comprises an intelligent controller, a power supply module, a data acquisition module, a local information transmission module and a remote monitoring center. Wherein,
the data acquisition module is connected with the power electronic transformer and acquires the temperature of the power electronic transformer and the image data of a refrigeration waterway of the power electronic transformer; the temperature of the power electronic transformer is transmitted to the intelligent controller and the local information transmission module; transmitting image data of a refrigeration waterway of the power electronic transformer to a local information transmission module; the intelligent controller collects four-way voltage, four-way power and humidity of the power electronic transformer and receives the temperature of the power electronic transformer, the intelligent controller compares the four-way voltage with a corresponding local voltage preset value to judge whether to alarm or not, compares the four-way power with a corresponding local power preset value to judge whether to alarm or not, compares the humidity with a local humidity preset value to judge whether to alarm or not, compares the temperature with a local temperature preset value to judge whether to alarm or not, and stores and transmits the four-way voltage, the four-way power and the humidity for 2s in a circulating manner to the local information transmission module; the local information transmission module transmits the four-path voltage, the four-path power, the humidity, the temperature and the image data of the refrigeration waterway of the power electronic transformer to a remote monitoring center. Specifically, the internal 2S circular storage mode of the intelligent controller is as follows: finding the earliest record based on the timestamp information, overwriting the oldest record with the latest set of records
The remote monitoring center comprises a man-machine interaction system, an information management system and a remote information transmission module, wherein the man-machine interaction system displays four paths of voltage, four paths of power, humidity, temperature and image data of a refrigeration waterway of the power electronic transformer; the information management system compares the four-way voltage with a corresponding voltage preset value to judge whether to alarm or not, compares the four-way power with a corresponding power preset value to judge whether to alarm or not, compares the humidity with a humidity preset value to judge whether to alarm or not, compares the temperature with a temperature preset value to judge whether to alarm or not, simultaneously stores the voltage, the power, the humidity, the temperature and the image data of a refrigeration waterway of the power electronic transformer in real time, and provides the functions of inquiring, counting and analyzing the image data of the refrigeration waterway of the voltage, the power, the humidity, the temperature and the power electronic transformer; the remote information transmission module receives the four-way voltage, the four-way power, the humidity, the temperature and the image data of the refrigeration waterway of the power electronic transformer and transmits the image data to the man-machine interaction system and the information management system; the power supply module supplies power for the intelligent controller, the information transmission module and the data acquisition module respectively.
The remote monitoring center mainly completes real-time information exchange with the intelligent controller, can judge the field equipment fault of the power electronic transformer in time and carry out alarm warning on the fault field by analyzing the received monitoring state data, provides an accident early warning scheme, is convenient to take measures in time, and reduces the possibility of accident occurrence. All received incident information and live image data may be saved locally and printed directly by a printer.
The data acquisition module comprises a thermal infrared imager and a camera. The thermal infrared imager collects the temperature of the power electronic transformer; the camera collects image data of a refrigeration waterway of the power electronic transformer.
The intelligent controller collects four-way voltage of the power electronic transformer, and compares the four-way voltage with a corresponding local voltage preset value to judge whether to alarm or not, and the intelligent controller comprises the following steps: the intelligent controller collects four paths of voltage of the power electronic transformer through the serial port, each path of voltage is compared with the corresponding local voltage preset value, and if one path of voltage is higher than the corresponding local voltage preset value, the intelligent controller gives an alarm through the voltage alarm circuit.
Specifically, the four-path voltage of the power electronic transformer comprises two paths of alternating-current voltages and two paths of direct-current voltages, a local voltage preset value corresponding to one path of alternating-current voltage is 12kv, a local voltage preset value corresponding to the other path of alternating-current voltage is 456v, a local voltage preset value corresponding to one path of direct-current voltage is 412.5v, and a local voltage preset value corresponding to the other path of direct-current voltage is 825 v.
As shown in fig. 3, the voltage alarm circuit includes: the LED driving circuit comprises a resistor R8, a resistor R15, a resistor R22, a resistor R33, a diode D4, a triode V4, an optocoupler U5 and a light emitting diode LED 2; the pin 1 of the resistor R8 is connected with the voltage +5V, the pin 2 of the resistor R8 is connected with the pin 1 of the resistor R15 and the pin 1 of the optocoupler U5, the pin 2 of the resistor R15 is connected with the pin 2 of the optocoupler U5 and the pin C of the triode V4, the pin 1 of the resistor R22 is connected with the CON function pin of the intelligent controller chip, the pin 2 of the resistor R22 is connected with the pin 1 of the resistor R33 and the pin B of the triode V4, the pin 2 of the resistor R33 is connected with the power ground, the pin E of the triode V4 is connected with the power ground, the pin 4 of the optocoupler U5 is connected with the +24V, the pin 3 of the optocoupler U5 is connected with the pin K of the diode D4 and the pin A of the LED2, the pin A of the diode D4 is connected with the VIN-, and the pin K of the LED2 is connected.
The voltage alarm circuit mainly comprises an optical relay and a peripheral resistor capacitor and is used for indicating and alarming the working state, the CON3 is a control signal, when the voltage deviates from a set threshold value, the CON3 outputs high level, the V4 is switched to be conducted from cut-off, the pins 1 and 2 of the optical relay U5 have current flowing, the light emitting diode conducts the pins 3 and 4 of the U5 through the optical signal, the indicator light LED2 is conducted and lightened by 24V direct current, and voltage alarm is generated.
The intelligent controller collects four paths of power of the power electronic transformer, and compares the four paths of power with corresponding local power preset values to judge whether to alarm or not, and the intelligent controller comprises the following steps: the intelligent controller collects four paths of power of the power electronic transformer through the serial port, each path of power is compared with a corresponding local power preset value, and if one path of power is higher than the corresponding local power preset value, an alarm is given through the power alarm circuit.
Specifically, the four paths of power of the power electronic transformer include two paths of alternating-current voltage power and two paths of direct-current voltage power, a local voltage power preset value corresponding to one path of alternating-current voltage power is 3.6Mw, a local voltage power preset value corresponding to the other path of alternating-current voltage power is 600Kw, a local voltage power preset value corresponding to one path of direct-current voltage power is 600Kw, and a local voltage power preset value corresponding to the other path of direct-current voltage power is 2.4 Mw.
As shown in fig. 4, the power alarm circuit includes: the LED driving circuit comprises a resistor R9, a resistor R16, a resistor R23, a resistor R34, a diode D5, a triode V5, an optocoupler U6 and a light emitting diode LED 3; the pin 1 of the resistor R9 is connected with the voltage +5V, the pin 2 of the resistor R9 is connected with the pin 1 of the resistor R16 and the pin 1 of the optocoupler U6, the pin 2 of the resistor R16 is connected with the pin 2 of the optocoupler U6 and the pin C of the triode V5, the pin 1 of the resistor R23 is connected with the CON function pin of the intelligent controller chip, the pin 2 of the resistor R23 is connected with the pin 1 of the resistor R34 and the pin B of the triode V5, the pin 2 of the resistor R34 is connected with the power ground, the pin E of the triode V5 is connected with the power ground, the pin 4 of the optocoupler U6 is connected with the +24V, the pin 3 of the optocoupler U6 is connected with the pin K of the diode D5 and the pin A of the LED3, the pin A of the diode D5 is connected with the VIN-, and the pin K of the LED3 is connected.
The power alarm circuit mainly comprises an optical relay and a peripheral resistor capacitor and is used for indicating and alarming the working state, the CON4 is a control signal, when the voltage deviates from a set threshold value, the CON4 outputs high level, the V5 is switched to be conducted from cut-off, the pins 1 and 2 of the optical relay U6 have current flowing, the light emitting diode conducts the pins 3 and 4 of the U6 through the optical signal, the indicator light LED3 is conducted and lightened by 24V direct current, and voltage alarm is generated.
The intelligent controller compares the temperature with a local temperature preset value to judge whether to alarm or not comprises the following steps: the intelligent controller compares the temperature with a local temperature preset value, and if the temperature is higher than the local temperature preset value, an alarm is given through a temperature alarm circuit. Wherein the local temperature preset value is 85 degrees.
As shown in fig. 5, the temperature alarm circuit includes: the LED driving circuit comprises a resistor R10, a resistor R17, a resistor R24, a resistor R35, a diode D6, a triode V6, an optocoupler U7 and a light emitting diode LED 4; the pin 1 of the resistor R10 is connected with the voltage +5V, the pin 2 of the resistor R10 is connected with the pin 1 of the resistor R17 and the pin 1 of the optocoupler U7, the pin 2 of the resistor R17 is connected with the pin 2 of the optocoupler U7 and the pin C of the triode V6, the pin 1 of the resistor R24 is connected with the CON function pin of the intelligent controller chip, the pin 2 of the resistor R24 is connected with the pin 1 of the resistor R35 and the pin B of the triode V6, the pin 2 of the resistor R35 is connected with the power ground, the pin E of the triode V6 is connected with the power ground, the pin 4 of the optocoupler U7 is connected with the +24V, the pin 3 of the optocoupler U7 is connected with the pin K of the diode D6 and the pin A of the LED4, the pin A of the diode D6 is connected with the VIN-, and the pin K of the LED4 is connected.
The temperature alarm circuit mainly comprises an optical relay and a peripheral resistor capacitor and is used for indicating and alarming the working state, the CON5 is a control signal, when the voltage deviates from a set threshold value, the CON5 outputs high level, the V6 is switched to be conducted from cut-off, the pins 1 and 2 of the optical relay U7 have current flowing, the light emitting diode conducts the pins 3 and 4 of the U7 through the optical signal, the indicator light LED4 is conducted and lightened by 24V direct current, and voltage alarm is generated.
The intelligent controller compares the humidity with a local humidity preset value to judge whether to alarm or not comprises the following steps: the intelligent controller compares the humidity with a local humidity preset value, and if the humidity is higher than the local humidity preset value, an alarm is given through a humidity alarm circuit. Wherein the local humidity preset value is 90%.
As shown in fig. 6, the humidity alarm circuit includes: the voltage alarm circuit includes: the LED driving circuit comprises a resistor R11, a resistor R18, a resistor R25, a resistor R36, a diode D7, a triode V7, an optocoupler U8 and a light emitting diode LED 5; the pin 1 of the resistor R11 is connected with the voltage +5V, the pin 2 of the resistor R11 is connected with the pin 1 of the resistor R18 and the pin 1 of the optocoupler U8, the pin 2 of the resistor R18 is connected with the pin 2 of the optocoupler U8 and the pin C of the triode V7, the pin 1 of the resistor R25 is connected with the CON function pin of the intelligent controller chip, the pin 2 of the resistor R25 is connected with the pin 1 of the resistor R36 and the pin B of the triode V7, the pin 2 of the resistor R36 is connected with the power ground, the pin E of the triode V7 is connected with the power ground, the pin 4 of the optocoupler U8 is connected with the +24V, the pin 3 of the optocoupler U8 is connected with the pin K of the diode D7 and the pin A of the LED5, the pin A of the diode D7 is connected with the VIN-, and the pin K of the LED5 is connected.
The humidity alarm circuit mainly comprises an optical relay and a peripheral resistor capacitor and is used for indicating and alarming the working state, the CON6 is a control signal, when the voltage deviates from a set threshold value, the CON6 outputs high level, the V7 is switched to be conducted from cut-off, the pins 1 and 2 of the optical relay U8 have current flowing, the light emitting diode enables the pins 3 and 4 of the U8 to be conducted through the optical signal, the indicator light LED4 is conducted and lightened through 24V direct current, and voltage alarm is generated.
The information management system compares the four-path voltage with the preset voltage value to judge whether to alarm or not comprises the following steps: the information management system receives four paths of voltages of the power electronic transformer, each path of voltage is compared with a corresponding voltage preset value, and if one path of voltage is higher than the corresponding voltage preset value, an alarm is given. Specifically, the four-path voltage of the power electronic transformer comprises two paths of alternating-current voltages and two paths of direct-current voltages, wherein a voltage preset value corresponding to one path of alternating-current voltage is 12kv, a voltage preset value corresponding to the other path of alternating-current voltage is 456v, a voltage preset value corresponding to one path of direct-current voltage is 412.5v, and a voltage preset value corresponding to the other path of direct-current voltage is 825 v.
The information management system compares the four paths of power with the preset power value to judge whether to alarm or not comprises the following steps: the information management system receives four paths of power of the power electronic transformer, each path of power is compared with a corresponding power preset value, and if one path of power is higher than the corresponding power preset value, an alarm is given. Specifically, the four paths of power of the power electronic transformer include two paths of alternating-current voltage power and two paths of direct-current voltage power, a local voltage power preset value corresponding to one path of alternating-current voltage power is 3.6Mw, a local voltage power preset value corresponding to the other path of alternating-current voltage power is 600Kw, a local voltage power preset value corresponding to one path of direct-current voltage power is 600Kw, and a local voltage power preset value corresponding to the other path of direct-current voltage power is 2.4 Mw.
The information management system compares the temperature with the preset temperature value to judge whether to alarm or not comprises the following steps: and the information management system compares the temperature with a preset temperature value, and if the temperature is higher than the preset temperature value, an alarm is given. Wherein the preset temperature value is 85 degrees.
The information management system compares the humidity with a preset humidity value to judge whether to alarm or not comprises the following steps: the information management system compares the humidity with a preset humidity value, and if the humidity is higher than the preset humidity value, an alarm is given. Wherein the humidity preset value is 90%.
As shown in fig. 2, the software of the intelligent controller firstly initializes variables and communication, connects to the power electronic transformer through the serial port COM1, and connects to the thermal infrared imager and the local information transmission module of the data acquisition module through the network port LAN 1; then a 10ms timer A and a 1s timer B are established; and after the timer A reaches the timing time for 10ms, reading the voltage and the power of the power electronic transformer, circularly storing the voltage and the power into an internal memory of the intelligent controller, comparing the voltage and the power with corresponding preset values, changing the state of a corresponding output pin of the intelligent controller into a high level if the voltage and the power are higher than the preset values, further lightening a corresponding alarm lamp, simultaneously closing the timers A and B, packaging and encrypting current data, and sending the current data to a local information transmission module. The four voltage channels correspond to the control output pin CON3, the alarm lamp LED2, the four power channels correspond to the control output pin CON4, and the alarm lamp LED 3. If the voltage and power data of the power electronic transformer are not higher than the preset value, after the voltage and power data of the power electronic transformer are accumulated to 100 groups, the 100 groups of data are packaged and encrypted and sent to the local information transmission module. And after the timer B reaches the timing time for 1s, reading the humidity of the power electronic transformer, circularly storing the humidity into an internal memory of the intelligent controller, comparing the humidity with a corresponding preset value, if the humidity is higher than the preset value, changing the state of a corresponding output pin of the intelligent controller into a high level, further lightening a corresponding alarm lamp, simultaneously closing the timers A and B, packaging and encrypting current data, and sending the current data to the local information transmission module. The humidity corresponding control output pin is CON6, the corresponding alarm lamp is LED5, the temperature corresponding control output pin is CON5, and the corresponding alarm lamp is LED 4. If the current data is not higher than the preset value, the current data is packed and encrypted and sent to the local information transmission module. If the intelligent controller network port LAN1 receives the received local information transmission module data, the parameters such as threshold value are set or the alarm lamp indication is cancelled according to the analysis of the communication protocol.
The intelligent controller of the embodiment can intelligently manage and transmit state information and image information, circularly store data in the local, upload a remote upper computer, alarm and lock a history record if parameters are out of tolerance, and has an alarm sound function.
In the embodiment, image data of a refrigeration waterway of the four-way voltage, four-way power, humidity, temperature and power electronic transformer are transmitted through the local information transmission module, and the remote information transmission module is connected to realize data communication with a remote monitoring center, so that the wireless communication function of data and images is realized.
Data needing attention on site mainly comprise four-way voltage, four-way power, humidity, temperature, image data of a refrigeration water path of a power electronic transformer and the like. The self-checking part of the power electronic transformer can complete measurement of various parameters such as voltage, power, temperature and humidity, and the like, so that the embodiment reads the parameters through the serial port of the intelligent controller, stores data in a local circulation mode, and transmits the data to a remote end; in the embodiment, the thermal infrared imager is used for monitoring the heating state of each copper plate, the overtemperature threshold is set locally for alarming, and meanwhile, information such as temperature and thermal imaging can be transmitted to a remote end; in the embodiment, the camera is used for collecting the waterway image and transmitting the waterway image to the remote end, and whether water leakage exists is judged through remote end image analysis.
The remote monitoring center of the embodiment realizes real-time monitoring of the equipment state information through the remote information transmission module and the man-machine interaction and information management system. The man-machine interaction mainly displays data such as four-way voltage, four-way power, humidity, temperature, image data of a refrigeration water path of the power electronic transformer and the like, judges whether the data are normal or not, simultaneously displays main operation records and fault information of software, and provides an entrance for user management, monitoring parameter configuration, historical records and fault inquiry. If the data is abnormal, an entrance with the function of clearing the alarm sound of the lower computer is provided. And displaying the numerical value of each parameter, and storing the numerical value for query and statistical analysis. The historical data can be used for inquiring and statistically analyzing various data according to types of time, monitoring points and the like; fault records can also be inquired; all the information is stored in a database and can be uniformly managed in the later period.
The above-described embodiments are merely preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (13)
1. A power electronic transformer remote monitoring device, characterized by comprising: the system comprises an intelligent controller, a power supply module, a data acquisition module, a local information transmission module and a remote monitoring center; wherein,
the data acquisition module is connected with the power electronic transformer and acquires the temperature of the power electronic transformer and the image data of a refrigeration waterway of the power electronic transformer; the temperature of the power electronic transformer is transmitted to the intelligent controller and the local information transmission module; transmitting image data of a refrigeration waterway of the power electronic transformer to a local information transmission module;
the intelligent controller collects four-way voltage, four-way power and humidity of the power electronic transformer and receives the temperature of the power electronic transformer, the intelligent controller compares the four-way voltage with a corresponding local voltage preset value to judge whether to alarm or not, compares the four-way power with a corresponding local power preset value to judge whether to alarm or not, compares the humidity with a local humidity preset value to judge whether to alarm or not, compares the temperature with a local temperature preset value to judge whether to alarm or not, and stores and transmits the four-way voltage, the four-way power and the humidity for 2s in a circulating manner to the local information transmission module;
the local information transmission module transmits the four-path voltage, the four-path power, the humidity, the temperature and the image data of the refrigeration waterway of the power electronic transformer to a remote monitoring center;
the remote monitoring center comprises a man-machine interaction system, an information management system and a remote information transmission module, wherein the man-machine interaction system displays four paths of voltage, four paths of power, humidity, temperature and image data of a refrigeration waterway of the power electronic transformer; the information management system compares the four-way voltage with a corresponding voltage preset value to judge whether to alarm or not, compares the four-way power with a corresponding power preset value to judge whether to alarm or not, compares the humidity with a humidity preset value to judge whether to alarm or not, compares the temperature with a temperature preset value to judge whether to alarm or not, simultaneously stores the voltage, the power, the humidity, the temperature and the image data of a refrigeration waterway of the power electronic transformer in real time, and provides the functions of inquiring, counting and analyzing the image data of the refrigeration waterway of the voltage, the power, the humidity, the temperature and the power electronic transformer; the remote information transmission module receives the four-way voltage, the four-way power, the humidity, the temperature and the image data of the refrigeration waterway of the power electronic transformer and transmits the image data to the man-machine interaction system and the information management system;
the power supply module supplies power for the intelligent controller, the information transmission module and the data acquisition module respectively.
2. A power electronic transformer remote monitoring device according to claim 1, characterized in that: the intelligent controller collects four-way voltage of the power electronic transformer, and compares the four-way voltage with a corresponding local voltage preset value to judge whether to alarm or not, and the intelligent controller comprises the following steps:
the intelligent controller collects four paths of voltage of the power electronic transformer through a serial port, each path of voltage is compared with a corresponding local voltage preset value, and if one path of voltage is higher than the corresponding local voltage preset value, an alarm is given through a voltage alarm circuit;
the four-path voltage of the power electronic transformer comprises two paths of alternating-current voltages and two paths of direct-current voltages, a local voltage preset value corresponding to one path of alternating-current voltage is 12kv, a local voltage preset value corresponding to the other path of alternating-current voltage is 456v, a local voltage preset value corresponding to one path of direct-current voltage is 412.5v, and a local voltage preset value corresponding to the other path of direct-current voltage is 825 v.
3. A power electronic transformer remote monitoring device according to claim 2, characterized in that: the voltage alarm circuit includes: the LED driving circuit comprises a resistor R8, a resistor R15, a resistor R22, a resistor R33, a diode D4, a triode V4, an optocoupler U5 and a light emitting diode LED 2; the pin 1 of the resistor R8 is connected with the voltage +5V, the pin 2 of the resistor R8 is connected with the pin 1 of the resistor R15 and the pin 1 of the optocoupler U5, the pin 2 of the resistor R15 is connected with the pin 2 of the optocoupler U5 and the pin C of the triode V4, the pin 1 of the resistor R22 is connected with the CON function pin of the intelligent controller chip, the pin 2 of the resistor R22 is connected with the pin 1 of the resistor R33 and the pin B of the triode V4, the pin 2 of the resistor R33 is connected with the power ground, the pin E of the triode V4 is connected with the power ground, the pin 4 of the optocoupler U5 is connected with the +24V, the pin 3 of the optocoupler U5 is connected with the pin K of the diode D4 and the pin A of the LED2, the pin A of the diode D4 is connected with the VIN-, and the pin K of the LED2 is connected.
4. A power electronic transformer remote monitoring device according to claim 1, characterized in that: the intelligent controller collects four paths of power of the power electronic transformer, and compares the four paths of power with corresponding local power preset values to judge whether to alarm or not, and the intelligent controller comprises the following steps:
the intelligent controller collects four paths of power of the power electronic transformer through a serial port, each path of power is compared with a corresponding local power preset value, and if one path of power is higher than the corresponding local power preset value, an alarm is given through a power alarm circuit;
the four paths of power of the power electronic transformer comprise two paths of alternating-current voltage power and two paths of direct-current voltage power, the local voltage power preset value corresponding to one path of alternating-current voltage power is 3.6Mw, the local voltage power preset value corresponding to the other path of alternating-current voltage power is 600Kw, the local voltage power preset value corresponding to one path of direct-current voltage power is 600Kw, and the local voltage power preset value corresponding to the other path of direct-current voltage power is 2.4 Mw.
5. A power electronic transformer remote monitoring device according to claim 4, characterized in that: the power alarm circuit includes: the LED driving circuit comprises a resistor R9, a resistor R16, a resistor R23, a resistor R34, a diode D5, a triode V5, an optocoupler U6 and a light emitting diode LED 3; the pin 1 of the resistor R9 is connected with the voltage +5V, the pin 2 of the resistor R9 is connected with the pin 1 of the resistor R16 and the pin 1 of the optocoupler U6, the pin 2 of the resistor R16 is connected with the pin 2 of the optocoupler U6 and the pin C of the triode V5, the pin 1 of the resistor R23 is connected with the CON function pin of the intelligent controller chip, the pin 2 of the resistor R23 is connected with the pin 1 of the resistor R34 and the pin B of the triode V5, the pin 2 of the resistor R34 is connected with the power ground, the pin E of the triode V5 is connected with the power ground, the pin 4 of the optocoupler U6 is connected with the +24V, the pin 3 of the optocoupler U6 is connected with the pin K of the diode D5 and the pin A of the LED3, the pin A of the diode D5 is connected with the VIN-, and the pin K of the LED3 is connected.
6. A power electronic transformer remote monitoring device according to claim 1, characterized in that: the intelligent controller compares the temperature with a local temperature preset value to judge whether to alarm or not comprises the following steps:
the intelligent controller compares the temperature with a local temperature preset value, and if the temperature is higher than the local temperature preset value, an alarm is given through a temperature alarm circuit; wherein the local temperature preset value is 85 degrees.
7. A power electronic transformer remote monitoring device according to claim 6, characterized in that: the temperature alarm circuit includes: the LED driving circuit comprises a resistor R10, a resistor R17, a resistor R24, a resistor R35, a diode D6, a triode V6, an optocoupler U7 and a light emitting diode LED 4; the pin 1 of the resistor R10 is connected with the voltage +5V, the pin 2 of the resistor R10 is connected with the pin 1 of the resistor R17 and the pin 1 of the optocoupler U7, the pin 2 of the resistor R17 is connected with the pin 2 of the optocoupler U7 and the pin C of the triode V6, the pin 1 of the resistor R24 is connected with the CON function pin of the intelligent controller chip, the pin 2 of the resistor R24 is connected with the pin 1 of the resistor R35 and the pin B of the triode V6, the pin 2 of the resistor R35 is connected with the power ground, the pin E of the triode V6 is connected with the power ground, the pin 4 of the optocoupler U7 is connected with the +24V, the pin 3 of the optocoupler U7 is connected with the pin K of the diode D6 and the pin A of the LED4, the pin A of the diode D6 is connected with the VIN-, and the pin K of the LED4 is connected.
8. A power electronic transformer remote monitoring device according to claim 1, characterized in that: the intelligent controller compares the humidity with a local humidity preset value to judge whether to alarm or not comprises the following steps:
the intelligent controller compares the humidity with a local humidity preset value, and if the humidity is higher than the local humidity preset value, an alarm is given through a humidity alarm circuit. Wherein the local humidity preset value is 90%.
9. A power electronic transformer remote monitoring device according to claim 8, characterised in that: the humidity alarm circuit includes: the voltage alarm circuit includes: the LED driving circuit comprises a resistor R11, a resistor R18, a resistor R25, a resistor R36, a diode D7, a triode V7, an optocoupler U8 and a light emitting diode LED 5; the pin 1 of the resistor R11 is connected with the voltage +5V, the pin 2 of the resistor R11 is connected with the pin 1 of the resistor R18 and the pin 1 of the optocoupler U8, the pin 2 of the resistor R18 is connected with the pin 2 of the optocoupler U8 and the pin C of the triode V7, the pin 1 of the resistor R25 is connected with the CON function pin of the intelligent controller chip, the pin 2 of the resistor R25 is connected with the pin 1 of the resistor R36 and the pin B of the triode V7, the pin 2 of the resistor R36 is connected with the power ground, the pin E of the triode V7 is connected with the power ground, the pin 4 of the optocoupler U8 is connected with the +24V, the pin 3 of the optocoupler U8 is connected with the pin K of the diode D7 and the pin A of the LED5, the pin A of the diode D7 is connected with the VIN-, and the pin K of the LED5 is connected.
10. A power electronic transformer remote monitoring device according to claim 1, characterized in that: the information management system compares the four-path voltage with the preset voltage value to judge whether to alarm or not comprises the following steps:
the information management system receives four paths of voltages of the power electronic transformer, each path of voltage is compared with a corresponding voltage preset value, and if one path of voltage is higher than the corresponding voltage preset value, an alarm is given;
the four-path voltage of the power electronic transformer comprises two paths of alternating-current voltages and two paths of direct-current voltages, wherein the voltage preset value corresponding to one path of alternating-current voltage is 12kv, the voltage preset value corresponding to the other path of alternating-current voltage is 456v, the voltage preset value corresponding to one path of direct-current voltage is 412.5v, and the voltage preset value corresponding to the other path of direct-current voltage is 825 v.
11. A power electronic transformer remote monitoring device according to claim 1, characterized in that: the information management system compares the four paths of power with the preset power value to judge whether to alarm or not comprises the following steps:
the information management system receives four paths of power of the power electronic transformer, each path of power is compared with a corresponding power preset value, and if one path of power is higher than the corresponding power preset value, an alarm is given;
the four paths of power of the power electronic transformer comprise two paths of alternating current voltage power and two paths of direct current voltage power, wherein the voltage power preset value corresponding to one path of alternating current voltage power is 3.6Mw, the voltage power preset value corresponding to the other path of alternating current voltage power is 600Kw, the voltage power preset value corresponding to one path of direct current voltage power is 600Kw, and the voltage power preset value corresponding to the other path of direct current voltage power is 2.4 Mw.
12. A power electronic transformer remote monitoring device according to claim 1, characterized in that: the information management system compares the temperature with the preset temperature value to judge whether to alarm or not comprises the following steps:
the information management system compares the temperature with a preset temperature value, and if the temperature is higher than the preset temperature value, an alarm is given; wherein the preset temperature value is 85 degrees.
13. A power electronic transformer remote monitoring device according to claim 1, characterized in that: the information management system compares the humidity with a preset humidity value to judge whether to alarm or not comprises the following steps:
the information management system compares the humidity with a preset humidity value, and if the humidity is higher than the preset humidity value, an alarm is given; wherein the humidity preset value is 90%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111693902A (en) * | 2020-06-02 | 2020-09-22 | 国网河北省电力有限公司邯郸供电分公司 | Power transformer running state automatic alarm system |
| CN116027111A (en) * | 2023-03-28 | 2023-04-28 | 华北电力大学（保定） | Transformer electric variable measuring device and measuring method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206226123U (en) * | 2016-12-12 | 2017-06-06 | 广东电网有限责任公司电力科学研究院 | A kind of data monitoring terminal and distribution transformer online monitoring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206226123U (en) * | 2016-12-12 | 2017-06-06 | 广东电网有限责任公司电力科学研究院 | A kind of data monitoring terminal and distribution transformer online monitoring system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693902A (en) * | 2020-06-02 | 2020-09-22 | 国网河北省电力有限公司邯郸供电分公司 | Power transformer running state automatic alarm system |
| CN116027111A (en) * | 2023-03-28 | 2023-04-28 | 华北电力大学（保定） | Transformer electric variable measuring device and measuring method |
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