CN109742650B - Automatic spark gap distance adjusting device and method - Google Patents
Automatic spark gap distance adjusting device and method Download PDFInfo
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- CN109742650B CN109742650B CN201910077979.5A CN201910077979A CN109742650B CN 109742650 B CN109742650 B CN 109742650B CN 201910077979 A CN201910077979 A CN 201910077979A CN 109742650 B CN109742650 B CN 109742650B
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Abstract
The application discloses spark gap is apart from automatic regulating apparatus and method, measure present spark gap indoor temperature, humidity and present spark gap's distance through measuring module, and generate measured data and send to logic judgement module, logic judgement module obtains spark gap's distance calculation value according to preset's functional relation formula and measured data to calculate the difference between distance calculation value and the distance measured value, through judging the positive and negative of difference generates control command, and control module receives control command, and according to control command, controls adjusting module and adjusts spark gap's distance. Compared with the prior art, the change of the temperature and the humidity inside the spark gap chamber is used as an important reference factor in the process of adjusting the distance of the spark gap, so that the probability of the phenomena of false triggering and trigger rejection of the spark gap in the actual operation process is effectively reduced.
Description
Technical Field
The application relates to the technical field of series compensation, in particular to a device and a method for automatically adjusting a spark gap distance.
Background
The series compensation device is an electric device which connects a capacitor bank in series in a power transmission line and is used for compensating inductive reactive power of the line, and can improve the transmission capacity and the power grid stability of the power transmission line. The series compensation device provides a backup protection system for the device by assembling a spark gap, when a capacitor bank and a metal oxide variable resistor (MOV) of the series compensation device bear overhigh voltage and a main protection system refuses to act, the spark gap self-triggers to protect the capacitor bank and the MOV, wherein the MOV is a core component of the series compensation device.
In the prior art, a series compensation engineering design unit can give a voltage design value of spark gap self-triggering, a spark gap manufacturer carries out a spark gap discharge test on an engineering site, and changes the discharge voltage of a spark gap by continuously adjusting the distance of the spark gap, so that the finally obtained discharge voltage of the spark gap is the same as the voltage design value. If the finally obtained spark gap discharge voltage is lower than the designed voltage value, in the actual operation, when the overvoltage born by the series compensation device reaches the spark gap discharge voltage, but the spark gap is easy to be triggered by mistake because the overvoltage does not reach the designed voltage value; if the finally obtained spark gap discharge voltage is higher than the designed voltage value, in actual operation, when the overvoltage born by the series compensation device reaches the designed voltage value, but the spark gap is easy to have a phenomenon of trigger rejection because the overvoltage does not reach the designed spark gap discharge voltage value. Therefore, in order to improve the reliability of the spark gap self-triggering, it is necessary to ensure that the finally obtained spark gap discharge voltage is the same as the designed voltage value.
However, in the research process of the present invention, the applicant finds that when the internal temperature and humidity of the on-site spark gap chamber change, the discharge voltage of the spark gap may be affected, so that in the process of the spark gap discharge test, it is impossible to ensure that the finally obtained magnitude of the spark gap discharge voltage is the same as the designed voltage value by accurately adjusting the spark gap distance based on the given designed voltage value, and thus the probability of the occurrence of the false triggering phenomenon or the false triggering phenomenon of the spark gap in the actual operation process is increased.
Disclosure of Invention
In order to solve the problem that in the prior art, the probability of occurrence of a false triggering phenomenon or a trigger rejection phenomenon of a spark gap is increased in the actual operation process due to the fact that the temperature and the humidity in the spark gap chamber can affect the discharge voltage of the spark gap, the application discloses a device and a method for automatically adjusting the distance of the spark gap through the following embodiments.
In a first aspect of the present application, there is disclosed a spark gap distance automatic adjusting device comprising: the device comprises a measuring module 4, a logic judgment module 5, a control module 6 and an adjusting module 7;
the measurement module 4 is configured to measure a current temperature and humidity inside the spark gap chamber 1 and a current distance of the spark gap, generate measurement data, and send the measurement data to the logic determination module 5, where the measurement data includes a current temperature value and humidity value inside the spark gap chamber 1 and a current distance measurement value of the spark gap;
the logic judgment module 5 is connected to the measurement module 4, and the logic judgment module 5 is configured to receive the measurement data, obtain a distance calculation value of the spark gap according to a preset functional relation and the measurement data, calculate a difference between the distance calculation value and the distance measurement value, and generate a control instruction by judging whether the difference is positive or negative, where the control instruction is to increase the distance of the spark gap or decrease the distance of the spark gap;
the control module 6 is connected with the logic judgment module 5, and the control module 6 is configured to receive a control instruction generated by the logic judgment module 5 and control the adjustment module 7 to adjust the distance of the spark gap according to the control instruction;
one end of the adjusting module 7 is connected with the control module 6, the other end of the adjusting module is fixed with the movable electrode 3 of the spark gap, and the adjusting module 7 is used for adjusting the position of the movable electrode 3 so as to change the distance between the movable electrode 3 and the static electrode 2 of the spark gap and realize the adjustment of the distance of the spark gap.
Optionally, the measurement module 4 includes a temperature tester, a humidity tester, a laser range finder and an analog-to-digital converter;
the temperature tester is used for measuring the temperature inside the current spark gap chamber 1;
the humidity tester is used for measuring the humidity inside the current spark gap chamber 1;
the laser range finder is used for measuring the distance of the current spark gap;
the analog-to-digital converter is used for converting analog signals obtained by the temperature tester, the humidity tester and the laser range finder to digital signals, generating the measurement data and sending the measurement data to the logic judgment module 5, wherein the measurement data comprise the current temperature value and humidity value in the spark gap chamber 1 and the current distance measurement value of the spark gap.
Optionally, the logic determining module 5 includes: the system comprises a signal receiving port, a man-machine conversation unit and a logic comparison unit;
the signal receiving port is used for receiving the measurement data;
the man-machine dialogue unit is used for acquiring a preset functional relation, the functional relation comprises a first functional relation and a second functional relation, the first functional relation is a functional relation between the discharge voltage of the spark gap and the current temperature value and humidity value in the spark gap chamber 1, and the second functional relation is a functional relation between the discharge voltage of the spark gap and the calculated distance value of the spark gap;
the logic comparison unit is used for acquiring the discharge voltage of the spark gap through the first functional relation according to the measurement data, then acquiring a distance calculation value of the spark gap through the second functional relation according to the discharge voltage of the spark gap, calculating a difference value between the distance calculation value of the spark gap and the distance measurement value, and generating a control instruction by judging whether the difference value is positive or negative, wherein if the difference value is positive, the control instruction is to increase the distance of the spark gap, if the difference value is negative, the control instruction is to decrease the distance of the spark gap, and the difference value is obtained by subtracting the distance measurement value from the distance calculation value.
Optionally, the logic comparison unit of the logic judgment module 5 is further configured to judge whether the absolute value of the difference is smaller than a preset limit value;
if the absolute value of the difference value is not less than the limit value, the logic judgment module 5 continues to generate a control instruction by judging the positive and negative of the difference value;
if the absolute value of the difference is smaller than the limit value, the logic judgment module 5 stops generating the control instruction.
Optionally, the control module 6 includes a pitch increasing switch 61 and a pitch decreasing switch 62;
when the control instruction generated by the logic judgment module 5 is to increase the distance of the spark gap, the control module 6 is configured to control the adjustment module 7 to increase the distance of the spark gap by controlling the distance increase switch 61 to be closed and the distance decrease switch 62 to be opened;
when the control instruction generated by the logic judgment module 5 is to reduce the distance of the spark gap, the control module 6 is configured to control the adjusting module 7 to reduce the distance of the spark gap by controlling the distance increasing switch 61 to be turned off and the distance reducing switch 62 to be turned on;
when the logic judgment module 5 stops generating the control command, the control module 6 is configured to control the adjustment module 7 to stop adjusting the distance of the spark gap by controlling the distance increasing switch 61 to be turned off and the distance decreasing switch 62 to be turned off.
Optionally, the adjusting module 7 includes an adjusting platform 71 and a fixing column 72;
one end of the movable electrode 3 is opposite to the static electrode 2, the static electrode 2 and the movable electrode 3 are on a horizontal straight line, and the distance between the movable electrode 3 and the static electrode 2 is the distance of the spark gap;
the movable electrode 3 is provided with a thread 30, the movable electrode 3 passes through a screw hole 720 arranged at the top of the fixed column 72 and is movably fixed at the top of the fixed column 72, and the position of the fixed column 72 is fixed relative to the static electrode 2 of the spark gap;
the other end of the movable electrode 3 is fixed to the adjusting platform 71, the adjusting platform 71 includes a reduction gear box 710, an adjusting motor 711 and a supporting platform 712, the reduction gear box 710 and the adjusting motor 711 are disposed on the supporting platform 712, the movable electrode 3 is fixedly connected to the adjusting motor 711 through the reduction gear box 710, and the supporting platform 712 is used for adjusting the heights of the adjusting motor 711 and the reduction gear box 710, so that the adjusting motor 711, the reduction gear box 710 and the movable electrode 3 are on the same horizontal plane;
the adjustment motor 711 is configured to control the movable electrode 3 to rotate, and the movable electrode 3 moves relative to the stationary electrode 2 through a screw hole 720 formed at the top of the fixed column 72 while rotating.
Optionally, the adjusting module 7 is configured to adjust the position of the movable electrode 3 to change the distance between the movable electrode 3 and the stationary electrode 2 of the spark gap, so as to achieve adjustment of the spark gap distance, and includes:
the adjusting module 7 is configured to control the adjusting motor 711 to rotate forward or backward under the control of the control module 6, so as to control the rotation direction of the movable electrode 3, so as to change the moving direction and position of the movable electrode 3, and thus adjust the spark gap distance.
Optionally, the supporting platform 712 includes a supporting plate face 7121 and a supporting column 7122;
the adjusting motor 711 and the reduction gear box 710 are disposed on the supporting plate face 7121, the supporting column 7122 is disposed at the bottom of the supporting plate face 7121, and the supporting column 7122 is used for adjusting the height of the supporting plate face 7121, so that the adjusting motor 711, the reduction gear box 710 and the movable electrode 3 are on the same horizontal plane;
the supporting column 7122 includes a fixing member 71221, a telescopic member 71222, a contact 71223 and a height adjusting knob 71224, the fixing member 71221 is fixedly installed on the ground of the spark gap chamber 1, the telescopic member 71222 is controlled by the height adjusting knob 71224 to be vertically telescopic in the fixing member 71221, and the contact 71223 is installed on the top of the telescopic member 71222;
the top of the telescopic member 71222 is embedded into a groove 71210 arranged at the bottom of the supporting plate face 7121 through the contact 71223, the upper surface of the contact 71223 is provided with a top groove 71225, the lower surface of the contact 71223 is provided with a bottom groove 71226, the top groove 71225 and the bottom groove 71226 are both provided with steel balls 71227, and the supporting plate face 7121 can move unhindered in the horizontal direction through the steel balls 71227.
Optionally, the apparatus further comprises a power module 8, wherein the power module 8 comprises a photovoltaic panel 81 and an energy storage battery 82;
the photovoltaic panel 81 is installed outside the spark gap chamber 1, and is used for acquiring solar energy and converting the solar energy into electric energy to charge the energy storage battery 82;
the energy storage battery 82 is installed inside the spark gap chamber 1, and is configured to receive the electric energy transmitted by the photovoltaic panel and supply power to the measurement module 4, the logic determination module 5, and the control module 6.
In a second aspect of the present application, there is disclosed an automatic spark gap distance adjusting method applied to the automatic spark gap distance adjusting device disclosed in the first aspect, the method including:
the measuring module measures the temperature and humidity in the current spark gap chamber and the distance of the current spark gap, generates measuring data and sends the measuring data to the logic judging module, wherein the measuring data comprises the temperature value and the humidity value in the current spark gap chamber and the distance measuring value of the current spark gap;
the logic judgment module is connected with the measurement module, receives the measurement data, obtains a distance calculation value of the spark gap according to a preset function relation and the measurement data, calculates a difference value between the distance calculation value and the distance measurement value, and generates a control instruction by judging whether the difference value is positive or negative, wherein the control instruction comprises: increasing the distance of the spark gap or decreasing the distance of the spark gap;
the control module is connected with the logic judgment module, receives the control instruction generated by the logic judgment module, and controls the adjustment module to adjust the distance of the spark gap according to the control instruction;
one end of the adjusting module is connected with the control module, the other end of the adjusting module is fixed with the movable electrode of the spark gap, and the adjusting module adjusts the position of the movable electrode so as to change the distance between the movable electrode and the static electrode of the spark gap and realize automatic adjustment of the distance of the spark gap.
In the process of adjusting the spark gap distance, the theoretical value of the spark gap distance is calculated based on the temperature and the humidity inside the spark gap chamber, namely, the calculated value of the spark gap distance is obtained, the difference value between the measured value of the spark gap distance and the calculated value of the spark gap distance is obtained, and the distance of the spark gap is adjusted through the difference value. Compared with the adjustment of the spark gap distance in the prior art, the automatic adjustment device and method for the spark gap distance, disclosed by the application, take the influences of the temperature and the humidity inside the spark gap chamber on the spark gap discharge voltage into consideration, and take the changes of the temperature and the humidity inside the spark gap chamber as important reference factors in the process of adjusting the spark gap distance, so that the finally obtained spark gap discharge voltage is ensured to be the same as a voltage design value, and the probability of occurrence of false triggering and trigger rejection phenomena of the spark gap in the actual operation process is effectively reduced.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an automatic spark gap distance adjusting device disclosed in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a control module in an automatic spark gap distance adjusting device disclosed in an embodiment of the present application;
fig. 3 is a schematic structural diagram of an adjusting module in an automatic spark gap distance adjusting device disclosed in an embodiment of the present application;
fig. 4 is a schematic structural diagram of an adjusting motor and a reduction gear box in the automatic spark gap distance adjusting device disclosed in the embodiment of the present application;
FIG. 5 is a schematic cross-sectional view of a reduction gear box in an automatic spark gap distance adjusting device according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a supporting pillar in an automatic spark gap distance adjusting device disclosed in an embodiment of the present application;
fig. 7 is a schematic structural view of a support plate surface in an automatic spark gap distance adjusting device disclosed in an embodiment of the present application;
FIG. 8 is a top view of a contact of an automatic spark gap distance adjusting device according to an embodiment of the present disclosure;
fig. 9 is a bottom view of a contact in an automatic spark gap distance adjusting device according to an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of a power module in an automatic spark gap distance adjusting device disclosed in an embodiment of the present application;
fig. 11 is a schematic view illustrating an installation of a photovoltaic panel in an automatic spark gap distance adjusting device according to an embodiment of the present application;
fig. 12 is a schematic view illustrating a distance adjustment in an automatic spark gap distance adjustment method according to an embodiment of the present application.
Detailed Description
In order to solve the problem that in the prior art, the probability of occurrence of a false triggering phenomenon or a trigger rejection phenomenon of a spark gap is increased in the actual operation process due to the fact that the temperature and the humidity in the spark gap chamber can affect the discharge voltage of the spark gap, the application discloses a device and a method for automatically adjusting the distance of the spark gap through the following embodiments.
Referring to fig. 1, a first embodiment of the present application discloses an automatic spark gap distance adjusting apparatus, including: a measuring module 4, a logic judgment module 5, a control module 6 and an adjusting module 7.
The measuring module 4 is used for measuring the current temperature and humidity in the spark gap chamber 1 and the current distance of the spark gap, generating measuring data and sending the measuring data to the logic judging module 5, wherein the measuring data comprises the current temperature value and humidity value in the spark gap chamber 1 and the current distance measuring value of the spark gap.
The logic judgment module 5 is connected to the measurement module 4, and the logic judgment module 5 is configured to receive the measurement data, obtain a distance calculation value of the spark gap according to a preset functional relation and the measurement data, calculate a difference between the distance calculation value and the distance measurement value, and generate a control instruction by judging whether the difference is positive or negative, where the control instruction is to increase the distance of the spark gap or decrease the distance of the spark gap.
The control module 6 is connected to the logic judgment module 5, and the control module 6 is configured to receive a control instruction generated by the logic judgment module 5, and control the adjustment module 7 to adjust the distance of the spark gap according to the control instruction.
One end of the adjusting module 7 is connected with the control module 6, the other end of the adjusting module is fixed with the movable electrode 3 of the spark gap, and the adjusting module 7 is used for adjusting the position of the movable electrode 3 so as to change the distance between the movable electrode 3 and the static electrode 2 of the spark gap and realize the adjustment of the distance of the spark gap.
According to the device, in the process of adjusting the distance of the spark gap, the theoretical value of the distance of the spark gap is calculated based on the temperature and the humidity inside the spark gap chamber, namely, the distance calculation value of the spark gap is obtained, the difference value between the measured value and the distance calculation value of the spark gap is obtained, and the distance of the spark gap is adjusted through the difference value. Compared with the adjustment of the spark gap distance in the prior art, the automatic adjustment device and method for the spark gap distance, disclosed by the application, take the influences of the temperature and the humidity inside the spark gap chamber on the spark gap discharge voltage into consideration, and take the changes of the temperature and the humidity inside the spark gap chamber as important reference factors in the process of adjusting the spark gap distance, so that the finally obtained spark gap discharge voltage is ensured to be the same as a voltage design value, and the probability of occurrence of false triggering and trigger rejection phenomena of the spark gap in the actual operation process is effectively reduced.
Further, the measuring module 4 comprises a temperature tester, a humidity tester, a laser range finder and an analog-to-digital converter;
the temperature tester is used to measure the temperature inside the spark gap chamber 1.
The moisture meter is used to measure the moisture inside the present spark gap chamber 1.
The laser range finder is used for measuring the distance of the current spark gap.
The analog-to-digital converter is used for converting analog signals obtained by the temperature tester, the humidity tester and the laser range finder to digital signals, generating the measurement data and sending the measurement data to the logic judgment module 5, wherein the measurement data comprise the current temperature value and humidity value in the spark gap chamber 1 and the current distance measurement value of the spark gap.
Further, the logic determining module 5 includes: signal receiving port, man-machine dialogue unit and logic contrast unit.
The signal receiving port is used for receiving the measurement data.
In practical operation, the signal receiving port is further configured to send the measurement data to the logic comparison unit.
The man-machine dialogue unit is used for acquiring a preset function relation, the function relation comprises a first function relation and a second function relation, the first function relation is a function relation between the discharge voltage of the spark gap and the current temperature value and humidity value in the spark gap chamber 1, and the second function relation is a function relation between the discharge voltage of the spark gap and the calculated distance value of the spark gap.
Specifically, the operator sets the functional relation in advance through the man-machine interaction unit. By way of example, in the embodiment of the present application, the discharge voltage values of the spark gap under 100 different temperature and relative humidity conditions are tested, and the test data obtained by the test is analyzed and processed by using the R language, so as to obtain the first functional relation: u ═ f1(T, RH). By testing the discharge voltage values of the spark gaps under the conditions of 50 different distances, analyzing and processing test data obtained by testing by using an R language, and acquiring the second functional relation: d ═ f2(U). Wherein, in the two obtained functional relations, U represents discharge voltage, T represents temperature signal value, RH represents humidity signal value, and D represents fireThe distance of the flower gap is calculated. The R language is a software tool for statistical calculations and statistical charting.
The logic comparison unit is used for acquiring the discharge voltage of the spark gap through the first functional relation according to the measurement data, then acquiring a distance calculation value of the spark gap through the second functional relation according to the discharge voltage of the spark gap, calculating a difference value between the distance calculation value of the spark gap and the distance measurement value, and generating a control instruction by judging whether the difference value is positive or negative, wherein if the difference value is positive, the control instruction is to increase the distance of the spark gap, if the difference value is negative, the control instruction is to decrease the distance of the spark gap, and the difference value is obtained by subtracting the distance measurement value from the distance calculation value.
Specifically, the difference is calculated according to the following formula:
ΔD＝D2-D1；
where Δ D is the difference, D1As said distance measure, D2Calculating a value for the distance.
When the difference Δ D is positive, it indicates that the distance of the spark gap is smaller than the theoretical value under the current temperature and humidity conditions in the spark gap chamber, and therefore, the distance of the spark gap needs to be increased at this time; when the difference Δ D is negative, it indicates that the distance of the spark gap is larger than the theoretical value under the current temperature and humidity conditions in the spark gap chamber, and therefore, the distance of the spark gap needs to be reduced.
Further, the logic comparison unit of the logic judgment module 5 is further configured to judge whether the absolute value of the difference is smaller than a preset limit value.
If the absolute value of the difference is not less than the limit value, the logic determination module 5 continues to generate a control instruction by determining whether the difference is positive or negative.
If the absolute value of the difference is smaller than the limit value, the logic judgment module 5 stops generating the control instruction.
As an example, the preset limit value is set to 0.2mm in the embodiment of the present application. With the adjustment of the gap distance, the difference Δ D gradually approaches to 0, and the logic determination module 5 stops generating the control command until the logic comparison unit calculates and determines that the magnitude of the difference Δ D is within the range of 0 ± 0.2 mm.
In addition, logic judgment module 5 still includes control command and gives the unit, and in actual operation, can pass through control command gives the unit and receives the control command that logic contrast unit generated, and will control command send to control module 6.
Further, referring to fig. 2, the control module 6 includes a pitch increasing switch 61 and a pitch decreasing switch 62.
When the control command generated by the logic judgment module 5 is to increase the distance of the spark gap, the control module 6 is configured to control the adjustment module 7 to increase the distance of the spark gap by controlling the distance increase switch 61 to be closed and the distance decrease switch 62 to be opened.
When the control command generated by the logic judgment module 5 is to reduce the distance of the spark gap, the control module 6 is configured to control the adjustment module 7 to reduce the distance of the spark gap by controlling the distance increasing switch 61 to be turned off and the distance reducing switch 62 to be turned on.
When the logic judgment module 5 stops generating the control command, the control module 6 is configured to control the adjustment module 7 to stop adjusting the distance of the spark gap by controlling the distance increasing switch 61 to be turned off and the distance decreasing switch 62 to be turned off.
Specifically, the control module 6 further includes a controller 60, and the controller 60 is configured to receive the control instruction generated by the logic determination module 5 through a signal line L1, and control the adjustment module 7 to adjust the distance of the spark gap by controlling the interval increasing switch 61 and the interval decreasing switch 62 to be turned off according to the control instruction. The controller 60 obtains electricity from the power module 8 through a controller cable L2, and the distance increasing switch 61 and the distance decreasing switch 62 control the adjusting module 7 through a power cable L3 to adjust the distance of the spark gap.
Further, referring to fig. 3, the adjusting module 7 includes an adjusting platform 71 and a fixing post 72.
One end of the movable electrode 3 is opposite to the static electrode 2, the static electrode 2 and the movable electrode 3 are on a horizontal straight line, and the distance between the movable electrode 3 and the static electrode 2 is the distance of the spark gap.
The movable electrode 3 is provided with a thread 30, the movable electrode 3 passes through a screw hole 720 arranged at the top of the fixed column 72 and is movably fixed at the top of the fixed column 72, and the position of the fixed column 72 is fixed relative to the static electrode 2 of the spark gap.
The other end of the movable electrode 3 is fixed to the adjusting platform 71, the adjusting platform 71 includes a reduction gear box 710, an adjusting motor 711 and a supporting platform 712, the reduction gear box 710 and the adjusting motor 711 are disposed on the supporting platform 712, as shown in fig. 4, the movable electrode 3 is fixedly connected to the adjusting motor 711 through the reduction gear box 710, and the supporting platform 712 is used for adjusting the heights of the adjusting motor 711 and the reduction gear box 710, so that the adjusting motor 711, the reduction gear box 710 and the movable electrode 3 are on the same horizontal plane.
The adjustment motor 711 is configured to control the movable electrode 3 to rotate, and the movable electrode 3 moves relative to the stationary electrode 2 through a screw hole 720 formed at the top of the fixed column 72 while rotating.
Referring to fig. 5, fig. 5 is a schematic cross-sectional structure view of the reduction gear box 710, two driving gears 7101 and one adjusting gear 7102 are arranged in a box body of the reduction gear box 710, the adjusting gear 7102 is fixedly connected with the movable electrode 3, the driving gears 7101 are respectively fixedly connected with shafts of two adjusting motors 711, the adjusting motors 711 drive the driving gears 7101 to rotate at a high speed while rotating at a high speed, and the movable electrode 3 is driven to rotate under the buffer of the adjusting gears 7102.
Further, the adjusting module 7 is configured to adjust the position of the movable electrode 3 to change the distance between the movable electrode 3 and the stationary electrode 2 of the spark gap, so as to achieve adjustment of the spark gap distance, and includes:
the adjusting module 7 is configured to control the adjusting motor 711 to rotate forward or backward under the control of the control module 6, so as to control the rotation direction of the movable electrode 3, so as to change the moving direction and position of the movable electrode 3, and thus adjust the spark gap distance.
Specifically, the controller 60 is connected to the logic determination module 5 through a signal line L1 to obtain a control command, and when receiving the command of increasing the distance of the spark gap, the controller 60 closes the gap increasing switch 61, opens the gap decreasing switch 62, and supplies power to the adjustment module 7 through a power cable L3 to drive the adjustment motor 711 to start to rotate in the forward direction, so as to increase the distance of the spark gap; when receiving the command of reducing the spark gap distance, the controller 60 turns off the distance increasing switch 61, turns on the distance reducing switch 62, and switches the positive and negative poles of the power supplied to the adjusting module 7 through the power cable L3 to drive the adjusting motor 711 to rotate in the opposite direction, thereby reducing the spark gap distance; when the control command is not received, the controller 60 turns off the pitch increasing switch 61 and the pitch decreasing switch 62, and the power supply to the adjusting module 7 is cut off, so that the rotation of the adjusting motor 711 is stopped and the distance of the spark gap is not changed. The crankshaft of the adjusting motor 711 is further provided with a brake hoop 7110, and the brake hoop 7110 is used for tightly holding the crankshaft of the adjusting motor 711 when a control command is not received, so that the crankshaft of the adjusting motor 711 cannot rotate due to interference of inertia and other external factors, and the accuracy of adjusting the distance of the spark gap is affected. While the adjusting module 7 receives the power supply, the brake hoop 7110 immediately releases the crankshaft of the adjusting motor 711, so that the adjusting motor 711 can normally rotate forwards and backwards to adjust the distance of the spark gap.
Further, the support platform 712 includes a support plate 7121 and a support post 7122.
The adjusting motor 711 and the reduction gear box 710 are disposed on the supporting plate face 7121, the supporting column 7122 is disposed at the bottom of the supporting plate face 7121, and the supporting column 7122 is used for adjusting the height of the supporting plate face 7121, so that the adjusting motor 711, the reduction gear box 710 and the movable electrode 3 are on the same horizontal plane.
Referring to fig. 6, fig. 6 is a schematic structural diagram of the supporting column 7122, the supporting column 7122 includes a fixing member 71221, a telescopic member 71222, a contact 71223 and a height adjusting knob 71224, the fixing member 71221 is fixedly installed on the ground of the spark gap chamber 1, the telescopic member 71222 is controlled by the height adjusting knob 71224 to be vertically telescopic in the fixing member 71221, and the contact 71223 is installed on the top of the telescopic member 71222.
The top of the telescoping member 71222 fits into a recess 71210 formed in the bottom of the support plate 7121 through the contact 71223. referring to fig. 7, it can be seen that the bottom of the support plate 7121 is formed with a recess 71210. Referring to fig. 8 and 9, the upper surface of the contact 71223 is provided with a top groove 71225 and the lower surface is provided with a bottom groove 71226. The upper surface of the contact 71223 is attached to the support plate 7121 and the lower surface of the contact 71223 is attached to the telescoping member 71222. Steel balls 71227 are disposed in the top recess 71225 and the bottom recess 71226, and the steel balls 71227 allow the supporting plate face 7121 to move in the horizontal direction without being blocked.
Further, the device further comprises a power module 8, as shown in fig. 10, wherein the power module 8 comprises a photovoltaic panel 81 and an energy storage battery 82.
The photovoltaic panel 81 is installed outside the spark gap chamber 1, and is configured to obtain solar energy and convert the solar energy into electrical energy through a charging cable L4 to charge the energy storage battery 82.
Specifically, as shown in fig. 11, the photovoltaic panel 81 is installed on the outer wall of the spark gap chamber 1 and the outer surface of the roof.
The energy storage battery 82 is installed inside the spark gap chamber 1, and is used for receiving the electric energy transmitted by the photovoltaic panel and supplying power to the measuring module 4, the logic judgment module 5 and the control module 6 through a load cable L5.
In addition, the power supply of the adjusting module 7 is transferred by the control module 6 according to the control instruction.
For details not disclosed in the embodiments of the method of the present application, please refer to the embodiments of the apparatus of the present application for further details.
Correspondingly, another embodiment of the present application discloses an automatic adjusting method for a spark gap distance, which includes:
the measuring module measures the temperature and humidity in the current spark gap chamber and the distance of the current spark gap, generates measuring data and sends the measuring data to the logic judging module, and the measuring data comprise the temperature value and the humidity value in the current spark gap chamber and the distance measuring value of the current spark gap.
The logic judgment module is connected with the measurement module, receives the measurement data, obtains a distance calculation value of the spark gap according to a preset function relation and the measurement data, calculates a difference value between the distance calculation value and the distance measurement value, and generates a control instruction by judging whether the difference value is positive or negative, wherein the control instruction comprises: increasing the distance of the spark gap or decreasing the distance of the spark gap.
The control module is connected with the logic judgment module, receives the control instruction generated by the logic judgment module, and controls the adjustment module to adjust the distance of the spark gap according to the control instruction.
One end of the adjusting module is connected with the control module, the other end of the adjusting module is fixed with the movable electrode of the spark gap, and the adjusting module adjusts the position of the movable electrode so as to change the distance between the movable electrode and the static electrode of the spark gap and realize automatic adjustment of the distance of the spark gap.
Specifically, based on the disclosure of the foregoing embodiments of the present application, a specific implementation procedure for automatically adjusting the spark gap distance disclosed in the present application is provided as follows:
referring to fig. 12, for convenience of understanding, a direction close to the stationary electrode is defined as forward, and a direction away from the stationary electrode is defined as backward, and the rotation direction of the movable electrode is judged in a forward view.
Step 1: the measuring module measures the temperature and humidity in the spark gap chamber and the distance of the current spark gap, and converts the measured analog signals into digital signals through an analog-to-digital converter;
step 2: the analog-to-digital converter measures the temperature value T, the humidity value RH and the distance measurement value D of the current spark gap1Sending the data to a logic judgment module;
and step 3: a signal receiving port of the logic judgment module receives data sent by the analog-to-digital converter and sends the data to the logic comparison unit;
and 4, step 4: the logic comparison unit substitutes the temperature value T and the humidity value RH into a preset first function relation: u ═ f1(T, RH), obtaining a discharge voltage value U of the spark gap under the current temperature and humidity conditions;
and 5: the logic comparison unit substitutes the discharge voltage value U of the spark gap under the current temperature and humidity conditions into a preset second functional relation: d ═ f2(U) obtaining a distance calculation value D of the spark gap under the current temperature and humidity conditions2；
Step 6: the logical comparison unit calculates a distance measurement D of the spark gap1And the calculated distance D2Δ D ═ D2-D1When the delta D is larger than 0.2mm, a control command for increasing the spark gap distance is generated, and when the delta D is smaller than-0.2 mm, a control command for reducing the spark gap distance is generated;
and 7: the logic comparison unit sends the generated control instruction to the control module through the control instruction sending unit;
the flow completed by the following steps 8-1 to 21-1 is as follows: flow when the generated control command is to increase the spark gap distance:
step 8-1: the control module receives a control instruction for increasing the distance of the spark gap, closes the distance increasing switch and opens the distance reducing switch through the controller, and supplies power to the adjusting module through the power cable;
step 9-1: after the adjusting module obtains the power which is supplied by the control module and has not reversed polarity, the brake hoop loosens the crankshaft of the adjusting motor, and meanwhile, the adjusting motor starts to rotate clockwise;
step 10-1: the adjusting motor drives a driving gear in the reduction gear box to rotate clockwise;
step 11-1: the driving gear drives the adjusting gear to rotate anticlockwise;
step 12-1: the adjusting gear drives the movable electrode to rotate anticlockwise;
step 13-1: the movable electrode moves backwards through the fixed column, and the distance between the movable electrode and the static electrode is increased;
step 14-1: the movable electrode pushes the reduction gear box to move backwards, and the reduction gear box drives the support plate surface to move backwards on the support column;
step 15-1: the delta D is gradually reduced along with the increase of the distance of the spark gap, and when the delta D is smaller than 0.2mm, the logic judgment module stops sending a control instruction to the control module;
step 16-1: the controller disconnects the distance increasing switch and the distance reducing switch, and the control module stops supplying power to the adjusting module;
step 17-1: adjusting the power failure and the stalling of the motor;
step 18-1: stopping the driving gear;
step 19-1: stopping the rotation of the adjusting gear;
step 20-1: stopping the rotation of the movable electrode;
step 21-1: and finishing the adjustment.
The flow completed by the following steps 8-2 to 21-2 is as follows: the flow when the generated control command is to reduce the spark gap distance:
step 8-2: the control module receives a control instruction for reducing the distance of the spark gap, closes the distance reducing switch through the controller, opens the distance increasing switch, and enables the positive electrode and the negative electrode of the electric power supplied to the adjusting module to be exchanged through the power cable;
step 9-2: after the adjusting module obtains the power with reversed polarity supplied by the control module, the brake hoop loosens the crankshaft of the adjusting motor, and meanwhile, the adjusting motor starts to rotate anticlockwise;
step 10-2: the adjusting motor drives a driving gear in the reduction gear box to rotate anticlockwise;
step 11-2: the driving gear drives the adjusting gear to rotate clockwise;
step 12-2: the adjusting gear drives the movable electrode to rotate clockwise;
step 13-2: the movable electrode moves forwards through the fixed column, and the distance between the movable electrode and the static electrode is reduced;
step 14-2: the movable electrode pulls the reduction gear box to move forwards, and the reduction gear box drives the support plate surface to move forwards on the support column;
step 15-2: the delta D is gradually increased along with the reduction of the distance of the spark gap, and when the delta D is larger than-0.2 mm, the logic judgment module stops sending a control instruction to the control module;
step 16-2: the controller disconnects the distance increasing switch and the distance reducing switch, and the control module stops supplying power to the adjusting module;
step 17-2: adjusting the power failure and the stalling of the motor;
step 18-2: stopping the driving gear;
step 19-2: stopping the rotation of the adjusting gear;
step 20-2: stopping the rotation of the movable electrode;
step 21-2: and finishing the adjustment.
The present application has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to limit the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the presently disclosed embodiments and implementations thereof without departing from the spirit and scope of the present disclosure, and these fall within the scope of the present disclosure. The protection scope of this application is subject to the appended claims.
Claims (9)
1. An automatic spark gap distance adjusting device, comprising: the device comprises a measuring module (4), a logic judgment module (5), a control module (6) and an adjusting module (7);
the measuring module (4) is used for measuring the current temperature and humidity in the spark gap chamber (1) and the current distance of the spark gap, generating measuring data and sending the measuring data to the logic judging module (5), wherein the measuring data comprises the current temperature value and humidity value in the spark gap chamber (1) and the current distance measuring value of the spark gap;
the logic judgment module (5) is connected with the measurement module (4), the logic judgment module (5) is used for receiving the measurement data, acquiring a distance calculation value of the spark gap according to a preset function relation and the measurement data, calculating a difference value between the distance calculation value and the distance measurement value, and generating a control instruction by judging whether the difference value is positive or negative, wherein the control instruction is to increase the distance of the spark gap or decrease the distance of the spark gap;
the control module (6) is connected with the logic judgment module (5), and the control module (6) is used for receiving a control instruction generated by the logic judgment module (5) and controlling the adjustment module (7) to adjust the distance of the spark gap according to the control instruction;
one end of the adjusting module (7) is connected with the control module (6), the other end of the adjusting module is fixed with the movable electrode (3) of the spark gap, and the adjusting module (7) is used for adjusting the position of the movable electrode (3) so as to change the distance between the movable electrode (3) and the static electrode (2) of the spark gap and realize the adjustment of the distance of the spark gap;
wherein the adjusting module (7) comprises an adjusting platform (71) and a fixing column (72);
one end of the movable electrode (3) is opposite to the static electrode (2), the static electrode (2) and the movable electrode (3) are on the same horizontal straight line, and the distance between the movable electrode (3) and the static electrode (2) is the distance of the spark gap;
the movable electrode (3) is provided with a thread (30), the movable electrode (3) penetrates through a screw hole (720) formed in the top of the fixed column (72) and is movably fixed to the top of the fixed column (72), and the position of the fixed column (72) is fixed relative to the static electrode (2) of the spark gap;
the other end of the movable electrode (3) is fixed with the adjusting platform (71), the adjusting platform (71) comprises a reduction gear box (710), an adjusting motor (711) and a supporting platform (712), the reduction gear box (710) and the adjusting motor (711) are arranged on the supporting platform (712), the movable electrode (3) is fixedly connected with the adjusting motor (711) through the reduction gear box (710), and the supporting platform (712) is used for adjusting the heights of the adjusting motor (711) and the reduction gear box (710), so that the adjusting motor (711), the reduction gear box (710) and the movable electrode (3) are on the same horizontal plane;
the adjusting motor (711) is used for controlling the movable electrode (3) to rotate, and the movable electrode (3) moves relative to the position of the static electrode (2) through a screw hole (720) formed in the top of the fixed column (72) while rotating.
2. The device according to claim 1, characterized in that the measuring module (4) comprises a temperature tester, a humidity tester, a laser rangefinder and an analog-to-digital converter;
the temperature tester is used for measuring the temperature inside the current spark gap chamber (1);
the humidity tester is used for measuring the humidity inside the current spark gap chamber (1);
the laser range finder is used for measuring the distance of the current spark gap;
the analog-to-digital converter is used for converting analog signals obtained by the temperature tester, the humidity tester and the laser range finder in measurement into digital signals, generating the measurement data and sending the measurement data to the logic judgment module (5), wherein the measurement data comprise a temperature value and a humidity value inside the current spark gap chamber (1) and a distance measurement value of the current spark gap.
3. The apparatus according to claim 1, wherein the logic determining module (5) comprises: the system comprises a signal receiving port, a man-machine conversation unit and a logic comparison unit;
the signal receiving port is used for receiving the measurement data;
the man-machine dialogue unit is used for acquiring a preset functional relation, the functional relation comprises a first functional relation and a second functional relation, the first functional relation is a functional relation between the discharge voltage of the spark gap and the current temperature value and humidity value in the spark gap chamber (1), and the second functional relation is a functional relation between the discharge voltage of the spark gap and the calculated distance value of the spark gap;
the logic comparison unit is used for acquiring the discharge voltage of the spark gap through the first functional relation according to the measurement data, then acquiring a distance calculation value of the spark gap through the second functional relation according to the discharge voltage of the spark gap, calculating a difference value between the distance calculation value of the spark gap and the distance measurement value, and generating a control instruction by judging whether the difference value is positive or negative, wherein if the difference value is positive, the control instruction is to increase the distance of the spark gap, if the difference value is negative, the control instruction is to decrease the distance of the spark gap, and the difference value is obtained by subtracting the distance measurement value from the distance calculation value.
4. The device according to claim 3, wherein the logic comparison unit of the logic determination module (5) is further configured to determine whether the absolute value of the difference is smaller than a preset limit value;
if the absolute value of the difference value is not less than the limit value, the logic judgment module (5) continues to generate a control instruction by judging the positive and negative of the difference value;
and if the absolute value of the difference value is smaller than the limit value, the logic judgment module (5) stops generating the control instruction.
5. The device according to claim 4, characterized in that the control module (6) comprises a pitch increase switch (61), a pitch decrease switch (62);
when the control instruction generated by the logic judgment module (5) is to increase the distance of the spark gap, the control module (6) is used for controlling the adjusting module (7) to increase the distance of the spark gap by controlling the distance increasing switch (61) to be closed and the distance decreasing switch (62) to be opened;
when the control instruction generated by the logic judgment module (5) is to reduce the distance of the spark gap, the control module (6) is used for controlling the adjusting module (7) to reduce the distance of the spark gap by controlling the distance increasing switch (61) to be switched off and the distance reducing switch (62) to be switched on;
when the logic judgment module (5) stops generating the control instruction, the control module (6) is used for controlling the adjusting module (7) to stop adjusting the distance of the spark gap by controlling the interval increasing switch (61) to be switched off and the interval reducing switch (62) to be switched off.
6. The device according to claim 1, wherein the adjusting module (7) is configured to adjust the position of the movable electrode (3) to change the distance between the movable electrode (3) and the stationary electrode (2) of the spark gap, to achieve the adjustment of the spark gap distance, and comprises:
the adjusting module (7) is used for controlling the adjusting motor (711) to rotate forwards or backwards under the control of the control module (6), so as to control the rotating direction of the movable electrode (3), change the moving direction and position of the movable electrode (3), and realize the adjustment of the spark gap distance.
7. The apparatus of claim 1, wherein the support platform (712) comprises a support deck (7121) and a support post (7122);
the adjusting motor (711) and the reduction gear box (710) are arranged on the supporting plate surface (7121), the supporting column (7122) is arranged at the bottom of the supporting plate surface (7121), and the supporting column (7122) is used for adjusting the height of the supporting plate surface (7121) so that the adjusting motor (711), the reduction gear box (710) and the movable electrode (3) are on the same horizontal plane;
the supporting column (7122) comprises a fixing component (71221), a telescopic component (71222), a contact (71223) and a height adjusting knob (71224), wherein the fixing component (71221) is fixedly installed on the ground of the spark gap chamber (1), the telescopic component (71222) is controlled by the height adjusting knob (71224) to be vertically telescopic in the fixing component (71221), and the contact (71223) is installed at the top of the telescopic component (71222);
the top of telescopic part (71222) is passed through contact (71223) embedding in the recess (71210) that support face (7121) bottom set up, the upper surface of contact (71223) is provided with top recess (71225), and the lower surface is provided with bottom recess (71226), top recess (71225) and all be provided with steel ball (71227) in bottom recess (71226), through steel ball (71227), make support face (7121) can be in the horizontal direction not obstructed removal.
8. The device according to claim 1, characterized in that it further comprises a power module (8), said power module (8) comprising a photovoltaic panel (81) and an energy storage battery (82);
the photovoltaic panel (81) is arranged outside the spark gap chamber (1) and is used for acquiring solar energy and converting the solar energy into electric energy to charge the energy storage battery (82);
the energy storage battery (82) is arranged inside the spark gap chamber (1) and used for receiving the electric energy transmitted by the photovoltaic panel and supplying power to the measuring module (4), the logic judgment module (5) and the control module (6).
9. An automatic spark gap distance adjusting method applied to the automatic spark gap distance adjusting device according to any one of claims 1 to 8, comprising:
the measuring module measures the temperature and humidity in the current spark gap chamber and the distance of the current spark gap, generates measuring data and sends the measuring data to the logic judging module, wherein the measuring data comprises the temperature value and the humidity value in the current spark gap chamber and the distance measuring value of the current spark gap;
the logic judgment module is connected with the measurement module, receives the measurement data, obtains a distance calculation value of the spark gap according to a preset function relation and the measurement data, calculates a difference value between the distance calculation value and the distance measurement value, and generates a control instruction by judging whether the difference value is positive or negative, wherein the control instruction comprises: increasing the distance of the spark gap or decreasing the distance of the spark gap;
the control module is connected with the logic judgment module, receives the control instruction generated by the logic judgment module, and controls the adjustment module to adjust the distance of the spark gap according to the control instruction;
one end of the adjusting module is connected with the control module, the other end of the adjusting module is fixed with the movable electrode of the spark gap, and the adjusting module adjusts the position of the movable electrode so as to change the distance between the movable electrode and the static electrode of the spark gap and realize automatic adjustment of the distance of the spark gap.
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| CN205141363U (en) * | 2015-08-17 | 2016-04-06 | 咸阳华维电子有限公司 | Novel structure of discharging |
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Effective date of registration: 20230420 Address after: 673100 Xincheng District, Liuku Town, Lushui City, Nujiang Lisu Autonomous Prefecture, Yunnan Province Patentee after: NUJIANG POWER SUPPLY BUREAU OF YUNNAN POWER GRID CO.,LTD. Address before: 673100 Nujiang Power Supply Bureau of Yunnan Power Grid Co., Ltd. in Xincheng District, Liuku Town, Lushui City, Nujiang Lisu Autonomous Prefecture, Yunnan Province Patentee before: NUJIANG POWER SUPPLY BUREAU OF YUNNAN POWER GRID CO.,LTD. Patentee before: YUNNAN ELECTRIC POWER TECHNOLOGY Co.,Ltd. |