CN113720559B - Method and device for collecting dynamic data of galloping of power transmission line - Google Patents
Method and device for collecting dynamic data of galloping of power transmission line Download PDFInfo
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- CN113720559B CN113720559B CN202111020435.9A CN202111020435A CN113720559B CN 113720559 B CN113720559 B CN 113720559B CN 202111020435 A CN202111020435 A CN 202111020435A CN 113720559 B CN113720559 B CN 113720559B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012360 testing method Methods 0.000 claims abstract description 132
- 230000000694 effects Effects 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 18
- 238000013480 data collection Methods 0.000 claims abstract description 16
- 230000002265 prevention Effects 0.000 claims abstract description 12
- 230000016507 interphase Effects 0.000 claims abstract description 9
- 238000013016 damping Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 239000012211 strain insulator Substances 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims description 3
- 238000009661 fatigue test Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 238000010835 comparative analysis Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a method and a device for collecting dynamic data of a power transmission line, wherein the data collecting device comprises a fixed tower and a galloping tower, test wires distributed in an array are connected between the fixed tower and the galloping tower, a galloping device for driving the test wires to gallop is fixed on the galloping tower, a galloping prevention device is connected between the test wires, the galloping device is controlled by a computer, and measurement and control software for controlling the galloping device is installed on the computer. According to the data collection device and method, the fixing sleeve is sleeved on the test wire positioned below, so that the horizontal swing of the test wire can be realized, and the fixing sleeve is sleeved on the test wire positioned above, so that the vertical swing of the test wire can be realized, and the galloping effect can be more comprehensively tested; the inter-phase spacer is connected between the test wires, so that the influence of the inter-phase spacer on the galloping effect of the test wires is tested, and the cost is saved.
Description
Technical Field
The invention relates to a method and a device for testing the galloping of a power transmission line, in particular to a method and a device for collecting dynamic data of the galloping of the power transmission line.
Background
Because the wire of the transmission line is subjected to eccentric icing and low-frequency and large-amplitude self-excitation vibration generated under wind excitation, the vibration and the vibration are not consistent with each other in the vibration among phase lines, the insufficient air gap among the wires is possibly caused, flashover tripping is caused, meanwhile, the vibration-proof anti-vibration hardware fitting and the device installed in the gear are seriously damaged, the spacer is caused to slip, the vibration damper is loosened and broken, and other serious consequences are even caused to damage of the insulator, the connecting hardware fitting and the iron tower.
In the prior art, the method of bonding the wing type resin of the machine wing type to the wire to simulate icing and then driving the wire to swing by adopting a fan is similar to the original method of the actual wire to swing, but the cost is extremely high, the swing effect is difficult to control, and the method and the device for collecting the dynamic data of the swing of the power transmission line are provided for solving the problems.
Disclosure of Invention
The invention aims to provide a method and a device for collecting dynamic data of power transmission line galloping, which can realize horizontal swing of a test wire by sleeving a fixing sleeve on the test wire positioned below, can realize vertical swing of the test wire by sleeving the fixing sleeve on the test wire positioned above, and can more comprehensively test the galloping effect; the inter-phase spacer is connected between the test wires, so that the influence of the inter-phase spacer on the galloping effect of the test wires is tested, and the cost is saved.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a transmission line galloping dynamic data collection device, data collection device includes fixed tower and galloping tower, is connected with the test wire of array distribution between fixed tower and the galloping tower, is fixed with the galloping device that is used for driving the test wire to gallop on the galloping tower, is connected with between the test wire and prevents galloping device, and the galloping device passes through computer control, installs the measurement and control software that is used for controlling the galloping device on the computer.
Further, the galloping device comprises a motor fixed on the galloping tower, the motor and the test wire positioned below are positioned on the same horizontal plane, an eccentric shaft is arranged on the motor, a damping telescopic rod is rotatably arranged on the eccentric shaft, a fixing sleeve is fixed on an output shaft of the damping telescopic rod, and the fixing sleeve is sleeved on the test wire.
Further, a plurality of gyroscope sensors are installed on the test wire, the gyroscope sensors are located at different positions of the test wire, data of measurement and control software in a computer transmitted by the gyroscope sensors are provided with the galloping frequency, acceleration and direction of the test wire, the measurement and control software drives the galloping device according to instructions, adjusts the driving frequency according to data returned by the gyroscope sensors, records data in different states and performs comparative analysis.
A method for collecting dynamic data of a power transmission line galloping dynamic data collecting device, the method for collecting dynamic data comprising the steps of:
s1: and (3) taking a plurality of test wires, fixing one ends of the test wires on the fixed tower through a strain clamp and a strain insulator string, and fixing the other ends of the test wires on the galloping tower through a wire tightener, wherein the plurality of test wires form an upper route, a lower route, a left route and a right route.
S2: and adjusting the fixed height of the test wire on the fixed tower to enable the fixed height on the fixed tower to be 2-5 meters higher than the fixed height on the galloping tower, and then fixing the test wire on the galloping device.
S3: the test wire is driven to swing by the swing device controlled by the measurement and control software, and the driving frequency is adjusted according to the data returned by the gyroscope sensor so as to be similar to the natural frequency of the test wire, thereby superposing the swing amplitude of the test wire and controlling the maximum swing amplitude of the test wire.
S4: and stopping driving the galloping device until the test wire stops galloping, installing the galloping device, and installing the inter-phase spacing bars on the galloping device at a position 400-600 meters away from the galloping device.
S5: and controlling the test wire to swing by using the measurement and control software to drive the test wire to swing, adjusting the driving frequency to the frequency of the test wire to generate the swing in the S2, observing for a period of time, and if the swing amplitude is smaller than that in the S2, adjusting the driving frequency to observe whether the superposition condition of the swing amplitude of the test wire exists under the frequency.
Further, the different types of anti-galloping devices are replaced, galloping data under the condition of the different anti-galloping devices are analyzed, and the anti-galloping effect of the different anti-galloping devices is judged;
adjusting the mounting positions of the anti-galloping devices, analyzing galloping data of different mounting positions, and judging the influence of the mounting positions of the anti-galloping devices on the galloping effect;
and adjusting the specification of the test wire, analyzing the galloping data under different test wire specifications, and judging the influence of the test wire specification on the galloping prevention effect.
And adjusting the drapability of the test wire, analyzing the galloping data under different drapability, and judging the influence of different drapability on the galloping effect.
Furthermore, when the fatigue test is carried out, the night is selected, the test is carried out in a test section without personnel and valuable equipment in a space below the test wire by 20-40 meters, and the test section is provided with a warning lamp, a fence, a prompt slogan, a monitoring video and a sensor for monitoring, and a program capable of stopping automatically or manually under an emergency condition is set for measurement and control software.
The invention has the beneficial effects that:
1. according to the data collection device and method, the fixing sleeve is sleeved on the test wire positioned below, so that the horizontal swing of the test wire can be realized, and the fixing sleeve is sleeved on the test wire positioned above, so that the vertical swing of the test wire can be realized, and the galloping effect can be more comprehensively tested;
2. according to the data collection device and method, the inter-phase spacers are connected between the test wires, so that the influence of the inter-phase spacers on the galloping effect of the test wires is tested, and the cost is saved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a data collection device according to the present invention;
FIG. 2 is a schematic diagram of a data collection device according to the present invention;
fig. 3 is an enlarged schematic view of the structure of fig. 1 a according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The utility model provides a transmission line galloping dynamic data collection device, data collection device includes fixed tower 1 and galloping tower 2, as shown in fig. 1, fig. 2 and fig. 3, be connected with the test wire 3 of array distribution between fixed tower 1 and the galloping tower 2, be fixed with on the galloping tower 2 and be used for driving the galloping device 5 of test wire 3 galloping, be connected with between the test wire 3 and prevent galloping device 4, galloping device 5 passes through computer control, install the measurement and control software that is used for controlling galloping device 5 on the computer.
The fixed tower 1 and the galloping tower 2 are fixed in an auxiliary way through a plurality of inclined-pull steel strands 6.
One end of the test wire 3 is fixed on the fixed tower 1 through a strain clamp and a strain insulator string, and the other end is fixed on the galloping tower 2 through a tightener.
The galloping device 5 comprises a motor 51 fixed on the galloping tower 2, the motor 51 and the test wire 3 positioned below are positioned on the same horizontal plane, an eccentric shaft 52 is arranged on the motor 51, a damping telescopic rod 53 is rotatably arranged on the eccentric shaft 52, a fixed sleeve 54 is fixed on an output shaft of the damping telescopic rod 53, and the fixed sleeve 54 is sleeved on the test wire 3.
The fixing sleeve 54 is sleeved on the test wire 3 positioned below, so that the test wire 3 can swing horizontally, and the fixing sleeve is sleeved on the test wire 3 positioned above, so that the test wire 3 can swing vertically.
The test wire 3 is provided with a plurality of gyroscope sensors, the gyroscope sensors are positioned at different positions of the test wire 3, the gyroscope sensors are used for transmitting data such as the galloping frequency, acceleration, direction and the like of the different positions of the test wire 3 to measurement and control software in a computer, and the measurement and control software can drive the galloping device according to instructions and adjust the driving frequency according to the data returned by the gyroscope sensors; data in different states can be recorded and analyzed by comparison.
The anti-galloping device 4 comprises a plurality of spaced bars connected between the test conductors 3.
A method for collecting dynamic data of a power transmission line galloping dynamic data collecting device comprises the following steps:
s1: taking a plurality of test wires 3, fixing one end of each test wire 3 on a fixed tower 1 through a strain clamp and a strain insulator string, and fixing the other end of each test wire 3 on a galloping tower 2 through a tightener, wherein the plurality of test wires 3 form an upper route, a lower route, a left route and a right route;
s2: the fixed height of the test wire 3 on the fixed tower 1 is adjusted to enable the fixed height on the fixed tower 1 to be 3 meters higher than the fixed height on the galloping tower 2, the drapability of the test wire 3 is moderate, then the test wire 3 is fixed on the galloping device 5, the test wire 3 can be fixed on the galloping device 5 through a bolt type strain clamp, and the test wire 3 can also be directly connected on the galloping device 5 through a tightener.
S3: the test wire 3 is driven to swing by the swing device 5 controlled by the measurement and control software, and the driving frequency is adjusted according to the data returned by the gyroscope sensor, so that the driving frequency is similar to the natural frequency of the test wire 3, the swing amplitude of the test wire 3 is overlapped, and the maximum swing amplitude of the test wire 3 is controlled.
S4: the driving of the galloping device 5 is stopped until the test lead 3 stops galloping, the galloping prevention device 4 is installed, the inter-phase spacing bars on the galloping prevention device 4 are installed at the position 580 meters away from the galloping prevention device, and the bolt on the galloping prevention device 4 is provided with an anti-withdrawing pin to prevent the components on the galloping prevention device 4 from falling off from the air.
S5: the test wire 3 is driven to swing by the monitoring software to control the swing device 5, the driving frequency is adjusted to the frequency of the test wire 3 in S2 to generate the swing, a period of time is observed, if the swing amplitude is smaller than that in S2, the driving frequency is adjusted, and whether the superposition condition of the swing amplitude of the test wire 3 exists under the frequency is observed.
The different types of anti-galloping devices 4 are replaced, galloping data under the condition of the different anti-galloping devices 4 are analyzed, and the galloping effect of the different anti-galloping devices 4 is judged.
Adjusting the mounting position of the anti-galloping device 4, analyzing galloping data of different mounting positions, and judging the influence of the mounting position of the anti-galloping device 4 on the galloping effect.
And adjusting the specification of the test wire 3, analyzing the galloping data under different test wire 3 specifications, and judging the influence of the test wire 3 specification on the galloping prevention effect.
And (3) adjusting the suspension degree of the test wire 3, analyzing the galloping data under different suspension degrees, and judging the influence of different suspension degrees on the galloping effect.
Safety protection, isolation and warning are needed during the test, and the test is carried out under the cooperation of multiple people.
When the fatigue test is carried out, the test can be carried out at night, namely, the test is carried out in a test section without personnel and valuable equipment in a space below the test wire by 30 meters, and the test section is provided with a warning lamp, a fence, a prompt slogan, a monitoring video and a sensor for monitoring, and a program capable of automatically or manually stopping under an emergency condition is set for measurement and control software.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (6)
1. The utility model provides a transmission line galloping dynamic data collection device, its characterized in that, data collection device includes fixed tower (1) and galloping tower (2), is connected with test wire (3) of array distribution between fixed tower (1) and the galloping tower (2), is fixed with on the galloping tower (2) and is used for driving the galloping device (5) of test wire (3) galloping, is connected with between test wire (3) and prevents galloping device (4), and galloping device (5) are through computer control, installs the measurement and control software that is used for controlling galloping device (5) on the computer;
the galloping device (5) comprises a motor (51) fixed on the galloping tower (2), the motor (51) and a test wire (3) positioned below are positioned on the same horizontal plane, an eccentric shaft (52) is arranged on the motor (51), a damping telescopic rod (53) is rotatably arranged on the eccentric shaft (52), a fixed sleeve (54) is fixed on an output shaft of the damping telescopic rod (53), the fixed sleeve (54) is sleeved on the test wire (3) positioned below, the horizontal swing of the test wire (3) is realized, and the fixed sleeve (54) is sleeved on the test wire (3) positioned above, so that the vertical swing of the test wire (3) is realized;
the test wire (3) is provided with a plurality of gyroscope sensors, the gyroscope sensors are positioned at different positions of the test wire (3), the data transmitted to the measurement and control software in the computer by the gyroscope sensors are the galloping frequency, acceleration and direction of the test wire (3), the measurement and control software can drive the galloping device according to instructions, adjust the driving frequency according to the data returned by the gyroscope sensors, can record the data in different states and carry out comparative analysis;
the method for collecting dynamic data by adopting the transmission line galloping dynamic data collecting device comprises the following steps:
s1: taking a plurality of test wires (3), fixing one end of each test wire (3) on a fixed tower (1) through a strain clamp and a strain insulator string, and fixing the other end of each test wire on a galloping tower (2) through a wire tightener, wherein the plurality of test wires (3) form an upper route, a lower route, a left route and a right route;
s2: the fixed height of the test wire (3) on the fixed tower (1) is adjusted to be 2-5 meters higher than the fixed height on the galloping tower (2), and then the test wire (3) is fixed on the galloping device (5);
s3: the test wire (3) is driven to swing by the swing device (5) under the control of the measurement and control software, and the driving frequency is adjusted according to the data returned by the gyroscope sensor so as to be similar to the natural frequency of the test wire (3), so that the swing amplitude of the test wire (3) is overlapped, and the maximum swing amplitude of the test wire (3) is controlled;
s4: stopping driving the galloping device (5) until the test wire (3) stops galloping, installing the galloping prevention device (4), and installing the inter-phase spacing bars on the galloping prevention device (4) at a position 400-600 meters away from the galloping device;
s5: controlling the test wire (3) to swing by using the measurement and control software to control the swing device (5), adjusting the driving frequency to the frequency of the swing generated by the test wire (3) in the S2, observing a period of time, and if the swing amplitude is smaller than that in the S2, adjusting the driving frequency to observe whether the superposition condition of the swing amplitude of the test wire (3) exists under the frequency;
changing different types of anti-galloping devices (4), analyzing galloping data under the condition of the different anti-galloping devices (4), and judging the anti-galloping effect of the different anti-galloping devices (4);
adjusting the mounting positions of the anti-galloping devices (4), analyzing galloping data of different mounting positions, and judging the influence of the mounting positions of the anti-galloping devices (4) on the anti-galloping effect;
adjusting the specification of the test wire (3), analyzing galloping data under different test wire (3) specifications, and judging the influence of the test wire (3) specification on the galloping prevention effect;
and (3) adjusting the suspension degree of the test wire (3), analyzing the galloping data under different suspension degrees, and judging the influence of different suspension degrees on the galloping effect.
2. The power transmission line galloping dynamic data collection device according to claim 1, wherein the fixed tower (1) and the galloping tower (2) are auxiliary fixed through a plurality of cable-stayed steel strands (6);
one end of the test wire (3) is fixed on the fixed tower (1) through a strain clamp and a strain insulator string, and the other end of the test wire is fixed on the galloping tower (2) through a tightener.
3. The transmission line galloping dynamic data collection device according to claim 1, wherein in S2, the test wire (3) is fixed to the galloping device (5) by a bolt type strain clamp.
4. A transmission line galloping dynamic data collection device according to claim 1, wherein in S2 the test wire (3) is connected to the galloping device (5) directly via a tightener.
5. The dynamic data collection device for power transmission line galloping according to claim 1, wherein the fatigue test is carried out at night, and the test is carried out in a test section without personnel and valuable equipment in a space below the test wire (3) by 20-40 meters, and is provided with warning lamps, fences, prompt slogans, monitoring videos and sensor monitoring, and a program capable of automatically or manually stopping in emergency is set for the measurement and control software.
6. The power transmission line galloping dynamic data collection device according to claim 1, wherein the bolts on the galloping prevention device (4) are provided with anti-backup pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111020435.9A CN113720559B (en) | 2021-09-01 | 2021-09-01 | Method and device for collecting dynamic data of galloping of power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111020435.9A CN113720559B (en) | 2021-09-01 | 2021-09-01 | Method and device for collecting dynamic data of galloping of power transmission line |
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| CN113720559A CN113720559A (en) | 2021-11-30 |
| CN113720559B true CN113720559B (en) | 2024-04-12 |
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