CN111123746B - Online monitoring system for environmental parameters of transformer substation - Google Patents
Online monitoring system for environmental parameters of transformer substation Download PDFInfo
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- CN111123746B CN111123746B CN201911274603.XA CN201911274603A CN111123746B CN 111123746 B CN111123746 B CN 111123746B CN 201911274603 A CN201911274603 A CN 201911274603A CN 111123746 B CN111123746 B CN 111123746B
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- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- G—PHYSICS
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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Abstract
The invention discloses an on-line monitoring system for environmental parameters of a transformer substation, which relates to the field of power systems and comprises the following components: the system comprises a cloud service platform, a smoke alarm module, a temperature and humidity detection module, a human body induction module, a noise acquisition module, a sulfur hexafluoride gas detection unit, a first fan set, a wind speed acquisition module, a video monitoring module, an alarm module and a communication module; the cloud service platform comprises a sulfur hexafluoride monitoring module; the sulfur hexafluoride monitoring module sends out an alarm in response to the fact that the concentration value of sulfur hexafluoride in one partition area is larger than a threshold value, and obtains the intrinsic wind direction of the first area and the personnel condition of the partition area; and then, controlling the wind direction of the fan unit according to the personnel condition and the intrinsic wind direction, and closing the fan unit when the real-time sulfur hexafluoride concentration value is smaller than a threshold value. Under the unmanned condition, the blowing direction of the fan is controlled according to the intrinsic wind direction, so that the sulfur hexafluoride can be diluted along with the drifting of environmental wind, and the damage to personnel or animals caused by sulfur hexafluoride aggregation is avoided.
Description
Technical Field
The invention relates to the field of transformer substations, in particular to an online monitoring system for environmental parameters of a transformer substation.
Background
Sulfur hexafluoride is an asphyxiant and, at high concentrations, can cause dyspnea, wheezing, bluish skin and mucous membranes, and general spasms. After the mixed gas of 80% of sulfur hexafluoride and 20% of oxygen is inhaled for a few minutes, limbs of a human body are numb, and even death occurs by suffocation. The national regulation indicates that the allowable concentration of sulfur hexafluoride gas in the air of an operating room is not more than 6g/m3 or the oxygen content in the air is more than 18 percent; short-term contact, the allowable concentration of sulfur hexafluoride gas in the air is not more than 7.5g/m 3. Sulfur hexafluoride is pharmacologically inert gas, low in toxicity and has asphyxiation effect on human body. Some traces of toxic sulfur-containing hypofluorites and oxyfluorides are decomposed during life or use.
From the middle of the 60 s, SF6 is widely used as an insulation medium for high voltage electrical equipment. SF6 gas insulated, fully enclosed switchgear occupies a much smaller area than conventional open high voltage switchgear and its operation is not affected by external weather and environmental conditions, and thus has come into widespread use not only in ultra-high voltage and extra-high voltage power systems, but also in distribution networks (SF6 gas insulated switchgears and ring network power supply units). The SF6 gas insulated pipeline transmission line has the advantages of small medium loss and large transmission capacity, and can be used in high-drop occasions, thus being commonly used for outlet of hydropower stations to replace conventional oil-filled cables. SF6 gas-insulated transformers have the advantage of being fire and explosion proof, and are particularly suitable for use in densely populated areas and for supplying power to high-rise buildings. The SF6 gas-insulated ultrahigh voltage transformer has been developed successfully, and the all-gas-insulated substation will be one direction of the development of the power transformation technology.
In the prior art, sulfur hexafluoride in a transformer substation is only used for evacuating people, and other treatment methods are not adopted for sulfur hexafluoride in the transformer substation, so that potential safety hazards exist.
Disclosure of Invention
In view of the defects of the prior art, the technical problem to be solved by the invention is to provide an online monitoring system for environmental parameters of a transformer substation, aiming at dispersing sulfur hexafluoride in the transformer substation so as to improve the environmental safety of the transformer substation.
In order to achieve the above object, the present invention provides an online monitoring system for environmental parameters of a transformer substation, the system comprising: the system comprises a cloud service platform, a smoke alarm module, a temperature and humidity detection module, a human body induction module, a noise acquisition module, a sulfur hexafluoride gas detection unit, a first fan set, a wind speed acquisition module, a video monitoring module, an alarm module and a communication module; the cloud service platform is in communication connection with the smoke alarm module, the temperature and humidity detection module, the human body induction module, the noise acquisition module, the sulfur hexafluoride gas detection unit, the first fan set, the wind speed acquisition module, the video monitoring module and the alarm module through the communication module; the cloud service platform comprises: the sulfur hexafluoride monitoring module is connected with the transaction data acquisition module;
the transaction data acquisition module is used for acquiring and storing the transaction data acquired by the smoke alarm module, the temperature and humidity detection module, the noise acquisition module and the video monitoring module;
the sulfur hexafluoride monitoring module comprises:
the leakage detection module is used for acquiring initial sulfur hexafluoride concentration values acquired by each sulfur hexafluoride gas detection unit in each subarea area in the transformer substation, and responding to the condition that the sulfur hexafluoride concentration value in at least one subarea area is larger than a first preset value, and sending sulfur hexafluoride leakage alarm; wherein the sulfur hexafluoride leakage alarm is located in a first zone;
the intrinsic wind direction acquisition module is used for responding to the sulfur hexafluoride leakage alarm and acquiring the intrinsic wind direction acquired by the wind direction detection module in the first area;
the personnel state acquisition module is used for acquiring detection data of the human body induction modules in each subarea area in the transformer substation;
the first wind driving module is used for responding to the unmanned state of each subarea region, and controlling a first fan set in the first region to form first driving wind in the same direction as the direction of the intrinsic wind direction according to the intrinsic wind direction;
the second wind driving module is used for controlling the first fan set in the first area to form second driving wind according to the intrinsic wind direction and the direction of the second area in response to the fact that the second area is in a manned state and other areas are in an unmanned state;
the third wind driving module is used for responding to the condition that each partition area is occupied, sending a wind dispelling alarm about blowing sulfur hexafluoride in the direction of the intrinsic wind direction according to the intrinsic wind direction, and controlling the first fan set in the first area to form third driving wind in the same direction as the direction of the intrinsic wind direction after the first duration;
the driving closing response module is used for acquiring a real-time sulfur hexafluoride concentration value acquired by the sulfur hexafluoride gas detection unit in the first area in real time and closing the first fan set in response to the real-time sulfur hexafluoride concentration value being smaller than a second preset value; the second preset value is smaller than the first preset value.
In the technical scheme, when the concentration value of sulfur hexafluoride in the transformer substation is higher than a threshold value, the intrinsic wind direction and the personnel condition of the current transformer substation are obtained, and under the unmanned condition, the blowing direction of a fan is controlled according to the intrinsic wind direction, so that the sulfur hexafluoride can be diluted along with the drifting of ambient wind, and the damage to personnel or animals caused by high concentration due to sulfur hexafluoride aggregation is avoided; under the condition that people exist, the fan enables the driving wind to deviate from the area where the people exist according to the area where the people exist; and when people exist in each area, alarming is carried out, the first fan set is started in a delayed mode, and sulfur hexafluoride is dissipated.
In a specific embodiment, the system further comprises:
the first indicating module is used for indicating the first area where sulfur hexafluoride leaks;
and the second indicating module is used for indicating the wind direction of the first driving wind, the second driving wind or the third driving wind emitted by the first fan set.
In a specific embodiment, the first fan unit includes: the four first sub-fans, the second sub-fans, the third sub-fans and the fourth sub-fans are circumferentially arranged; the first sub-fan and the third sub-fan are arranged oppositely, and the second sub-fan and the fourth sub-fan are arranged oppositely; the blowing direction of the first sub-fan and the third sub-fan is a first direction, the blowing direction of the second sub-fan and the fourth sub-fan is a second direction, and the first direction is perpendicular to the second direction;
the sulfur hexafluoride monitoring module further comprises:
and the fan power control module is used for controlling the output power of each sub-fan according to the pseudo-blowing direction, the first direction and the second direction of the first driving wind, the second driving wind or the third driving wind.
In the technical scheme, in order to control the wind direction of the driving wind, the plurality of groups of sub-fans are used for blowing simultaneously to form resultant force so as to adjust and control the direction of the driving wind, so that the sulfur hexafluoride is dispersed, and suffocation poisoning of people or organisms is avoided.
In a specific embodiment, the wind turbine power control module further includes:
a quasi-blowing direction component solving module, configured to obtain a unit vector of the quasi-blowing direction according to the quasi-blowing direction, the first direction, and the second direction
A first component in the first orientation
Obtaining a second component of the unit vector of the pseudo-blowing direction in the second direction
A fan power solution control module for solving the first component
And the second component
Controlling the output power of the first sub-fan and the third sub-fan to be PxControlling the output power P of the second sub-fan and the fourth sub-fany(ii) a The above-mentioned
The above-mentioned
The P is0Is a preset power value.
In the technical scheme, the wind direction of the driving wind is regulated and controlled by regulating and controlling the power of the sub-fan, so that the sulfur hexafluoride is dispersed, and suffocation poisoning of people or organisms is avoided.
In a specific embodiment, the wind direction detection module is an anemorumbometer located right above the sulfur hexafluoride gas detection unit in the first area, and the wind direction detection module acquires the wind direction of the first area as the intrinsic wind direction.
In the technical scheme, the anemorumbometer is arranged right above the sulfur hexafluoride gas detection unit so as to measure the wind speed in the area, control the first fan set and realize the dispersion of the sulfur hexafluoride gas.
In one embodiment, the wind direction detecting module includes N anemorumbometers circumferentially arranged in the first area;
the intrinsic wind direction acquisition module further comprises:
a wind speed acquisition unit for responding to the sulfur hexafluoride leakage alarm and acquiring the wind speed value v of each anemorumbometeriAnd wind speed azimuth
The value v of the wind speediCharacterizing wind speed magnitude, said azimuth angle
Characterizing a wind direction of a wind speed on a horizontal plane; wherein, the horizontal included angle from the north arrow to the target direction line along the clockwise direction is the wind speed azimuth angle
A wind direction solving unit for solving the wind speed value v of each anemorumbometer according to the wind speed value viAnd wind speed azimuth
Solving for the eigenwind direction Φ of the first region; the above-mentioned
And the i is the serial number of the anemorumbometer.
In the technical scheme, the wind direction detection module comprises N anemorumbometers which are circumferentially arranged in the first area, and wind speed resultant force is solved according to wind speed conditions of the anemorumbometers, so that accurate wind speed in the first area can be obtained, and the first fan set is controlled to disperse sulfur hexafluoride gas.
In one embodiment, the human body sensing module is a heat release human body sensing switch.
In a specific embodiment, the sulfur hexafluoride monitoring module further includes:
the first recording module is used for recording the initial sulfur hexafluoride concentration value acquired by each sulfur hexafluoride gas detection unit;
the second recording module is used for recording the intrinsic wind direction condition and the corresponding driving wind when the first fan set works each time;
and the third recording module is used for recording the detection data of the human body induction module in the transformer substation when the first fan unit works each time.
In one embodiment, the direction of the second driving wind is different from the direction of the second region relative to the first region and is adapted to the intrinsic wind direction.
When the direction of the second area is different from the intrinsic wind direction, the wind direction of the second driving wind is the intrinsic wind direction;
when the direction of the second region is the same as the intrinsic wind direction, the wind direction of the second driving wind is perpendicular to the intrinsic wind direction.
The invention has the beneficial effects that: in the invention, when the concentration value of the sulfur hexafluoride in the transformer substation is higher than a threshold value, the intrinsic wind direction and the personnel condition of the current transformer substation are obtained, and under the unmanned condition, the blowing direction of the fan is controlled according to the intrinsic wind direction, so that the sulfur hexafluoride can be diluted along with the drifting of environmental wind, and the damage to personnel or animals caused by high concentration due to the gathering of the sulfur hexafluoride is avoided; under the condition that people exist, the fan enables the driving wind to deviate from the area where the people exist according to the area where the people exist; and when people exist in each area, alarming is carried out, the first fan set is started in a delayed mode, and sulfur hexafluoride is dissipated.
Drawings
Fig. 1 is a system block diagram of an online monitoring system for environmental parameters of a transformer substation, according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an automatic inspection method for environmental parameters of a transformer substation according to an embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1-2, in a first embodiment of the present invention, there is provided a method for automatically inspecting environmental parameters of a substation, the method including:
s1, acquiring initial sulfur hexafluoride concentration values acquired by sulfur hexafluoride gas detection units in each partition area in the transformer substation, responding to the fact that the sulfur hexafluoride concentration values in at least one partition area are larger than a first preset value, sending out a sulfur hexafluoride leakage alarm, and executing S2; the sulfur hexafluoride leakage alarm is located in a first area;
s2, responding to the sulfur hexafluoride leakage alarm, acquiring the intrinsic wind direction acquired by the wind direction detection module in the first area, and executing S3;
step S3, acquiring detection data of the human body induction modules of the subarea areas in the transformer substation; in response to that each of the partition areas is in an unattended state, executing step S4; in response to the second area being in the manned state and the other areas being in the unmanned state, performing step S5; in response to that all the partition areas are in the human state, executing step S6;
step S4, controlling the first fan set in the first area to form first driving wind in the same direction as the direction of the intrinsic wind direction according to the intrinsic wind direction, and executing step S7;
step S5, controlling a first fan set in the first area to form second driving air according to the intrinsic wind direction and the direction of the second area, and executing step S7;
step S6, sending out a dispelling wind alarm about blowing sulfur hexafluoride towards the direction of the intrinsic wind direction according to the intrinsic wind direction, controlling a first fan set in the first area to form third driving wind in the same direction as the direction of the intrinsic wind direction after a first duration, and executing step S7;
step S7, collecting a real-time sulfur hexafluoride gas concentration value collected by the sulfur hexafluoride gas detection unit in the first area in real time, and closing the first fan set in response to the real-time sulfur hexafluoride concentration value being smaller than a second preset value; the second preset value is smaller than the first preset value.
In the embodiment, when the concentration value of sulfur hexafluoride in the transformer substation is higher than a threshold value, the intrinsic wind direction and the personnel condition of the current transformer substation are obtained, and under the unmanned condition, the blowing direction of the fan is controlled according to the intrinsic wind direction, so that the sulfur hexafluoride can be diluted along with the drifting of ambient wind, and the damage to personnel or animals caused by high concentration due to the gathering of the sulfur hexafluoride is avoided; under the condition that people exist, the fan enables the driving wind to deviate from the area where the people exist according to the area where the people exist; and when people exist in each area, alarming is carried out, the first fan set is started in a delayed mode, and sulfur hexafluoride is dissipated.
In this embodiment, the method further includes:
indicating the first region where sulfur hexafluoride leakage occurs;
and indicating the wind direction of the first driving wind, the second driving wind or the third driving wind sent by the first fan set.
In this embodiment, the first fan unit includes: the four first sub-fans, the second sub-fans, the third sub-fans and the fourth sub-fans are circumferentially arranged; the first sub-fan and the third sub-fan are arranged oppositely, and the second sub-fan and the fourth sub-fan are arranged oppositely; the blowing direction of the first sub-fan and the third sub-fan is a first direction, the blowing direction of the second sub-fan and the fourth sub-fan is a second direction, and the first direction is perpendicular to the second direction;
the method comprises the following steps: and SA, controlling the output power of each sub-fan according to the pseudo-blowing direction, the first direction and the second direction of the first driving wind, the second driving wind or the third driving wind.
In this embodiment, in order to control the wind direction of the driving wind, the plurality of groups of sub-fans are used for blowing air simultaneously to form resultant force so as to control the direction of the driving wind, so that the sulfur hexafluoride is dispersed, and suffocation poisoning of people or organisms is avoided.
In this embodiment, the step SA further includes:
according to the quasi-blowing direction, the first direction and the second direction, obtaining a unit vector of the quasi-blowing direction
A first component in the first orientation
Obtaining a second component of the unit vector of the pseudo-blowing direction in the second direction
According to the first component
And the second component
Controlling the output power of the first sub-fan and the third sub-fan to be PxControlling the output power P of the second sub-fan and the fourth sub-fany(ii) a The above-mentioned
The above-mentioned
The P is0Is a preset power value.
In this embodiment, the wind direction of the driving wind is regulated and controlled by regulating and controlling the power of the sub-fan, so that the sulfur hexafluoride is dispersed, and suffocation poisoning of people or organisms is avoided.
In this embodiment, the wind direction detecting module includes N anemorumbometers circumferentially arranged in the first area;
the step S2 further includes:
step S21, responding to the sulfur hexafluoride leakage alarm, and collecting the wind speed value v of each anemorumbometeriAnd wind speed azimuth
The value v of the wind speediCharacterizing wind speed magnitude, said azimuth angle
Characterizing a wind direction of a wind speed on a horizontal plane; wherein, the horizontal included angle from the north arrow to the target direction line along the clockwise direction is the wind speed azimuth angle
Step S22, obtaining the wind speed value v of each anemorumbometeriAnd wind speed azimuth
Solving for the eigenwind direction Φ of the first region; the above-mentioned
And the i is the serial number of the anemorumbometer.
In this embodiment, the wind direction detection module includes N anemorumbometers circumferentially arranged in the first area, and obtains a relatively accurate wind speed in the first area by solving a resultant wind speed condition of the anemorumbometers, so as to control the first fan unit to dissipate sulfur hexafluoride gas.
In this embodiment, the anemorumbometers arranged on the inner circumference of the first region can be regarded as the superposition of the wind speeds for the intrinsic wind speed of the first region, including the wind speed value and the wind speed azimuth angle; for each wind speed, the wind speed can be decomposed into two components which are perpendicular to each other, wherein, since the azimuth angle is zero degree with north and is positive with clockwise, each wind speed can be decomposed into a Y axis with the azimuth angle of 0 degrees and an X axis with the azimuth angle of 90 degrees;
decomposing each wind speed to Y axis to obtain Y component
Resolving each wind speed to X-axis to obtain X component
The sum of the two is the total sum of the wind speeds; it is thus obtained that the total azimuth satisfies:
then, the following can be obtained:
in another optional embodiment, the wind direction detection module is an anemorumbometer located right above the sulfur hexafluoride gas detection unit in the first area, and the wind direction of the first area acquired by the wind direction detection module is used as the intrinsic wind direction. In this embodiment, an anemorumbometer is arranged right above the sulfur hexafluoride gas detection unit so as to measure the wind speed in the area, so as to control the first fan set, and thus, the sulfur hexafluoride gas is dissipated.
In this embodiment, the human body sensing module is a pyroelectric human body sensing switch.
In this embodiment, the method further includes:
recording the initial sulfur hexafluoride concentration value collected by each sulfur hexafluoride gas detection unit;
recording the intrinsic wind direction condition and the corresponding driving wind during each time of the work of the first fan set;
and recording the detection data of the human body induction module in the transformer substation when the first fan unit works each time.
In this embodiment, the wind direction of the second driving wind is different from the direction of the second region with respect to the first region and is adapted to the intrinsic wind direction.
When the direction of the second area is different from the intrinsic wind direction, the wind direction of the second driving wind is the intrinsic wind direction;
when the direction of the second region is the same as the intrinsic wind direction, the wind direction of the second driving wind is perpendicular to the intrinsic wind direction.
As shown in fig. 1-2, in a second embodiment of the present invention, there is provided an online monitoring system for environmental parameters of a substation, the system comprising: the system comprises a cloud service platform 100, a smoke alarm module 109101, a temperature and humidity detection module 102, a human body induction module 103, a noise acquisition module 104, a sulfur hexafluoride gas detection unit 105, a first fan set 106, a wind speed acquisition module 107, a video monitoring module 108, an alarm module 109 and a communication module 110; the cloud service platform 100 is in communication connection with the smoke alarm module 109101, the temperature and humidity detection module 102, the human body induction module 103, the noise collection module 104, the sulfur hexafluoride gas detection unit 105, the first fan set 106, the wind speed collection module 107, the video monitoring module 108 and the alarm module 109 through the communication module 110; the cloud service platform 100 includes: a transaction data acquisition module 200 and a sulfur hexafluoride monitoring module 300;
the transaction data acquisition module 200 is configured to acquire and store the transaction data acquired by the smoke alarm module 109101, the temperature and humidity detection module 102, the noise acquisition module 104, and the video monitoring module 108;
the sulfur hexafluoride monitoring module 300 includes:
the leakage detection module 310 is configured to obtain an initial sulfur hexafluoride concentration value acquired by each sulfur hexafluoride gas detection unit 105 in each partition area in the substation, and send out a sulfur hexafluoride leakage alarm in response to that the sulfur hexafluoride concentration value in at least one partition area is greater than a first preset value; wherein the sulfur hexafluoride leakage alarm is located in a first zone;
the intrinsic wind direction acquisition module 320 is used for responding to the sulfur hexafluoride leakage alarm and acquiring the intrinsic wind direction acquired by the wind direction detection module in the first area;
the personnel state acquisition module 330 is configured to acquire detection data of the human body sensing modules 103 in each of the subareas in the substation;
the first wind driving module 340 is configured to, in response to that each partition area is in an unmanned state, control, according to the intrinsic wind direction, the first fan set 106 in the first area to form first driving wind in the same direction as the intrinsic wind direction;
the second wind driving module 350 is configured to, in response to that the second area is in a manned state and other areas are in an unmanned state, control the first fan set 106 in the first area to form second driving wind according to the intrinsic wind direction and the direction of the second area;
the third wind driving module 360 is configured to, in response to that each of the partition areas is in a manned state, send a wind dispelling alarm that sulfur hexafluoride is about to be blown away in the direction of the intrinsic wind direction according to the intrinsic wind direction, and control the first fan set 106 in the first area to form third driving wind in the same direction as the direction of the intrinsic wind direction after a first duration;
a driving closing response module 370, configured to collect a real-time sulfur hexafluoride concentration value collected by the sulfur hexafluoride gas detection unit 105 in the first area in real time, and close the first fan set 106 in response to the real-time sulfur hexafluoride concentration value being smaller than a second preset value; the second preset value is smaller than the first preset value.
In the embodiment, when the concentration value of sulfur hexafluoride in the transformer substation is higher than a threshold value, the intrinsic wind direction and the personnel condition of the current transformer substation are obtained, and under the unmanned condition, the blowing direction of the fan is controlled according to the intrinsic wind direction, so that the sulfur hexafluoride can be diluted along with the drifting of ambient wind, and the damage to personnel or animals caused by high concentration due to the gathering of the sulfur hexafluoride is avoided; under the condition that people exist, the fan enables the driving wind to deviate from the area where the people exist according to the area where the people exist; and when people exist in each area, alarming is carried out, the first fan set 106 is started in a delayed mode, and sulfur hexafluoride is dissipated.
In this embodiment, the system further includes:
the first indicating module 111 is used for indicating the first area where sulfur hexafluoride leakage occurs;
and a second indicating module 112, configured to indicate a wind direction of the first driving wind, the second driving wind, or the third driving wind emitted by the first fan set 106.
In this embodiment, the first fan unit 106 includes: the four first sub-fans, the second sub-fans, the third sub-fans and the fourth sub-fans are circumferentially arranged; the first sub-fan and the third sub-fan are arranged oppositely, and the second sub-fan and the fourth sub-fan are arranged oppositely; the blowing direction of the first sub-fan and the third sub-fan is a first direction, the blowing direction of the second sub-fan and the fourth sub-fan is a second direction, and the first direction is perpendicular to the second direction;
the sulfur hexafluoride monitoring module 300 further includes:
and a fan power control module 380 configured to control output power of each of the sub-fans according to a pseudo-blowing direction, the first orientation, and the second orientation of the first driving wind, the second driving wind, or the third driving wind.
In this embodiment, in order to control the wind direction of the driving wind, the plurality of groups of sub-fans are used for blowing air simultaneously to form resultant force so as to control the direction of the driving wind, so that the sulfur hexafluoride is dispersed, and suffocation poisoning of people or organisms is avoided.
In this embodiment, the wind turbine power control module 380 further includes:
component of quasi-blowing directionA solving module for obtaining the unit vector of the pseudo-blowing direction according to the pseudo-blowing direction, the first direction and the second direction
A first component in the first orientation
Obtaining a second component of the unit vector of the pseudo-blowing direction in the second direction
A fan power solution control module for solving the first component
And the second component
Controlling the output power of the first sub-fan and the third sub-fan to be PxControlling the output power P of the second sub-fan and the fourth sub-fany(ii) a The above-mentioned
The above-mentioned
The P is0Is a preset power value.
In this embodiment, the wind direction of the driving wind is regulated and controlled by regulating and controlling the power of the sub-fan, so that the sulfur hexafluoride is dispersed, and suffocation poisoning of people or organisms is avoided.
In this embodiment, the wind direction detecting module includes N anemorumbometers circumferentially arranged in the first area;
the intrinsic wind direction collecting module 320 further includes:
a wind speed acquisition unit for acquiring each of the sulfur hexafluoride leakage alarms in response to the sulfur hexafluoride leakage alarmsWind speed value v of anemorumbometeriAnd wind speed azimuth
The value v of the wind speediCharacterizing wind speed magnitude, said azimuth angle
Characterizing a wind direction of a wind speed on a horizontal plane; wherein, the horizontal included angle from the north arrow to the target direction line along the clockwise direction is the wind speed azimuth angle
A wind direction solving unit for solving the wind speed value v of each anemorumbometer according to the wind speed value viAnd wind speed azimuth
Solving for the eigenwind direction Φ of the first region; the above-mentioned
In this embodiment, the wind direction detection module includes N anemorumbometers circumferentially arranged in the first area, and the resultant wind speed is obtained by solving the wind speed conditions of the anemorumbometers, so as to obtain a relatively accurate wind speed in the first area, and to control the first fan set 106 to dissipate sulfur hexafluoride gas.
In this embodiment, the anemorumbometers arranged on the inner circumference of the first region can be regarded as the superposition of the wind speeds for the intrinsic wind speed of the first region, including the wind speed value and the wind speed azimuth angle; for each wind speed, the wind speed can be decomposed into two components which are perpendicular to each other, wherein, since the azimuth angle is zero degree with north and is positive with clockwise, each wind speed can be decomposed into a Y axis with the azimuth angle of 0 degrees and an X axis with the azimuth angle of 90 degrees;
decomposing each wind speed to Y axis to obtain Y component
Resolving each wind speed to X-axis to obtain X component
The sum of the two is the total sum of the wind speeds; it is thus obtained that the total azimuth satisfies:
then, the following can be obtained:
in another optional embodiment, the wind direction detecting module is an anemorumbometer located right above the sulfur hexafluoride gas detecting unit 105 in the first area, and the wind direction of the first area acquired by the wind direction detecting module is used as the intrinsic wind direction. In this embodiment, the sulfur hexafluoride gas is dispersed by providing an anemoscope directly above the sulfur hexafluoride gas detection unit 105 to measure the wind speed in this area, so as to control the first fan set 106.
In this embodiment, the human body sensing module 103 is a pyroelectric human body sensing switch.
In this embodiment, the sulfur hexafluoride monitoring module 300 further includes:
the first recording module is used for recording the initial sulfur hexafluoride concentration value acquired by each sulfur hexafluoride gas detection unit 105;
the second recording module is used for recording the intrinsic wind direction condition and the corresponding driving wind when the first fan set 106 works each time;
and the third recording module is used for recording the detection data of the human body induction module 103 in the transformer substation when the first fan set 106 works each time.
In this embodiment, the wind direction of the second driving wind is different from the direction of the second region with respect to the first region and is adapted to the intrinsic wind direction.
When the direction of the second area is different from the intrinsic wind direction, the wind direction of the second driving wind is the intrinsic wind direction;
when the direction of the second region is the same as the intrinsic wind direction, the wind direction of the second driving wind is perpendicular to the intrinsic wind direction.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. An on-line monitoring system for environmental parameters of a transformer substation, which is characterized by comprising: the system comprises a cloud service platform, a smoke alarm module, a temperature and humidity detection module, a human body induction module, a noise acquisition module, a sulfur hexafluoride gas detection unit, a first fan set, a wind speed acquisition module, a video monitoring module, an alarm module and a communication module; the cloud service platform is in communication connection with the smoke alarm module, the temperature and humidity detection module, the human body induction module, the noise acquisition module, the sulfur hexafluoride gas detection unit, the first fan set, the wind speed acquisition module, the video monitoring module and the alarm module through the communication module; the cloud service platform comprises: the sulfur hexafluoride monitoring module is connected with the transaction data acquisition module;
the transaction data acquisition module is used for acquiring and storing the transaction data acquired by the smoke alarm module, the temperature and humidity detection module, the noise acquisition module and the video monitoring module;
the sulfur hexafluoride monitoring module comprises:
the leakage detection module is used for acquiring initial sulfur hexafluoride concentration values acquired by each sulfur hexafluoride gas detection unit in each subarea area in the transformer substation, and responding to the condition that the sulfur hexafluoride concentration value in at least one subarea area is larger than a first preset value, and sending sulfur hexafluoride leakage alarm; wherein the sulfur hexafluoride leakage alarm is located in a first zone;
the intrinsic wind direction acquisition module is used for responding to the sulfur hexafluoride leakage alarm and acquiring the intrinsic wind direction acquired by the wind direction detection module in the first area;
the personnel state acquisition module is used for acquiring detection data of the human body induction modules in each subarea area in the transformer substation;
the first wind driving module is used for responding to the unmanned state of each subarea region, and controlling a first fan set in the first region to form first driving wind in the same direction as the direction of the intrinsic wind direction according to the intrinsic wind direction;
the second wind driving module is used for controlling the first fan set in the first area to form second driving wind according to the intrinsic wind direction and the direction of the second area in response to the fact that the second area is in a manned state and other areas are in an unmanned state;
the third wind driving module is used for responding to the condition that each partition area is occupied, sending a wind dispelling alarm about blowing sulfur hexafluoride in the direction of the intrinsic wind direction according to the intrinsic wind direction, and controlling the first fan set in the first area to form third driving wind in the same direction as the direction of the intrinsic wind direction after the first duration;
the driving closing response module is used for acquiring a real-time sulfur hexafluoride concentration value acquired by the sulfur hexafluoride gas detection unit in the first area in real time and closing the first fan set in response to the real-time sulfur hexafluoride concentration value being smaller than a second preset value; the second preset value is smaller than the first preset value;
the first fan set comprises: the four first sub-fans, the second sub-fans, the third sub-fans and the fourth sub-fans are circumferentially arranged; the first sub-fan and the third sub-fan are arranged oppositely, and the second sub-fan and the fourth sub-fan are arranged oppositely; the blowing direction of the first sub-fan and the third sub-fan is a first direction, the blowing direction of the second sub-fan and the fourth sub-fan is a second direction, and the first direction is perpendicular to the second direction;
the sulfur hexafluoride monitoring module further comprises:
and the fan power control module is used for controlling the output power of each sub-fan according to the pseudo-blowing direction, the first direction and the second direction of the first driving wind, the second driving wind or the third driving wind.
2. The substation environmental parameter online monitoring system of claim 1, the system further comprising:
the first indicating module is used for indicating the first area where sulfur hexafluoride leaks;
and the second indicating module is used for indicating the wind direction of the first driving wind, the second driving wind or the third driving wind emitted by the first fan set.
3. The substation environment parameter online monitoring system of claim 1, wherein the wind turbine power control module further comprises:
a quasi-blowing direction component solving module, configured to obtain a unit vector of the quasi-blowing direction according to the quasi-blowing direction, the first direction, and the second direction
A first component in the first orientation
Obtaining a second component of the unit vector of the pseudo-blowing direction in the second direction
A fan power solution control module for solving the first component
And the second component
Controlling the output power of the first sub-fan and the third sub-fan to be PxControlling the output power P of the second sub-fan and the fourth sub-fany(ii) a The above-mentioned
The above-mentioned
The P is0Is a preset power value.
4. The on-line monitoring system for the environmental parameters of the transformer substation of claim 1, wherein the wind direction detection module is an anemorumbometer located right above the sulfur hexafluoride gas detection unit in the first area, and the wind direction of the first area acquired by the wind direction detection module is used as the intrinsic wind direction.
5. The substation environment parameter online monitoring system of claim 1, wherein the wind direction detection module comprises N anemorumbometers circumferentially arranged in the first area;
the intrinsic wind direction acquisition module further comprises:
a wind speed acquisition unit for responding to the sulfur hexafluoride leakage alarm and acquiring the wind speed value v of each anemorumbometeriAnd wind speed azimuth
The value v of the wind speediCharacterizing wind speed magnitude, said azimuth angle
Characterizing a wind direction of a wind speed on a horizontal plane; wherein, the horizontal included angle from the north arrow to the target direction line along the clockwise direction is the wind speed azimuth angle
A wind direction solving unit for solving the wind speed value v of each anemorumbometer according to the wind speed value viAnd wind speed azimuth
Solving for the eigenwind direction Φ of the first region; the above-mentioned
And the i is the serial number of the anemorumbometer.
6. The on-line monitoring system for the environmental parameters of the transformer substation of claim 1, wherein the human body sensing module is a heat release human body sensing switch.
7. The on-line monitoring system for the environmental parameters of the transformer substation of claim 1, wherein the sulfur hexafluoride monitoring module further comprises:
the first recording module is used for recording the initial sulfur hexafluoride concentration value acquired by each sulfur hexafluoride gas detection unit;
the second recording module is used for recording the intrinsic wind direction condition and the corresponding driving wind when the first fan set works each time;
and the third recording module is used for recording the detection data of the human body induction module in the transformer substation when the first fan unit works each time.
8. The substation environmental parameter online monitoring system of claim 1, wherein the wind direction of the second driving wind is different from the direction of the second area relative to the first area and is adapted to an intrinsic wind direction.
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