Test system for high and low voltage equipment and control method thereof

Abstract

The invention discloses a test system for high-low voltage equipment and a control method thereof. The test system comprises a plurality of test devices, the plurality of loading platforms are used for bearing the test devices; the execution unit comprises a distance adjusting assembly and a moving mechanism; wherein the distance adjusting assembly is connected between the adjacent loading platforms and used for adjusting the distance between the adjacent loading platforms; the moving mechanism is arranged below the loading platform and is used for carrying the loading platform to move to a specified position; according to the invention, the distance between the test devices is controlled through the distance adjusting assembly, and the position of the test equipment can be rapidly adjusted, so that the test equipment can adapt to different test equipment requirements; moreover, the test device which keeps a safe distance is driven by the moving mechanism to integrally move to a brake test position, and the test device can be retracted to a specified storage position after the test is completed; therefore, the test device has the effects of improving the adaptability of the test device, reducing the occupied space and improving the test convenience.

Description

Technical Field

[0001] The present invention relates to the field of electric power production, and in particular to a test system and a control method for high and low voltage equipment. Background Art

[0002] The test system for high and low voltage equipment can simulate various conditions encountered in the actual operation of the power system, test the insulation performance of the power equipment, and test the high and low voltage equipment regularly; thus, the experimenters can discover potential problems of the power equipment at an early stage and improve the reliability and service life of the power equipment.

[0003] In order to ensure the safety of the test, a certain distance must be maintained between the test equipment during the test. At present, the steps to complete the test are to use large vehicles to move the test equipment to the destination, and then use lifting tools and manpower to move the test equipment down and assemble and test it on site.

[0004] However, this test method is prone to damage to instruments and equipment such as bumps and squeezes, the process is cumbersome, and lifting equipment is time-consuming and laborious, which will also affect the test results. In addition, with the development of science and technology and the improvement of living standards, modern society has put forward higher requirements for the safety and stability of power supply. The number of test items has gradually increased, and the number of test equipment required has also increased. When conducting multiple tests on power equipment, the previous lifting test equipment has a huge workload and low efficiency, which cannot meet the growing needs.

[0005] Although there are many types of test equipment currently, which can complete a variety of test projects, most of them are fixed in position; although they ensure the safe spacing of the test equipment, the test equipment occupies a large space, resulting in a waste of space resources. The test equipment is difficult to move, and when not testing, it is easy to cause a waste of resources. Summary of the invention

[0006] In view of the above technical problems, the present invention provides a test system for high and low voltage equipment and a control method thereof. The distance between the test devices is controlled by a spacing adjustment component, and the position of the test equipment can be quickly adjusted to adapt it to different test equipment requirements; and the test device that maintains a safe distance is driven by a moving mechanism to move as a whole to a braking test position, and can be retracted to a designated storage position after the test is completed; thereby, the present invention plays a role in improving the adaptability of the test device, reducing the occupied space and facilitating the test.

[0007] In order to achieve the above technical objectives, the present invention adopts the following technical means:

[0008] A test system for high and low voltage equipment, wherein the test device is placed in a workshop;

[0009] A loading platform, provided with a plurality of them, for carrying the test device;

[0010] The execution unit includes a spacing adjustment component and a moving mechanism; wherein,

[0011] A spacing adjustment component, connected between adjacent loading platforms, for adjusting the distance between adjacent loading platforms;

[0012] A moving mechanism, disposed below the loading platform, for carrying the loading platform and moving it to a designated position;

[0013] After the spacing adjustment component controls the adjacent loading platforms to stretch to a safe spacing, the moving mechanism drives the test device with the safety distance adjusted to move to a designated test position.

[0014] Also includes:

[0015] A spacing feedback module, comprising a signal sending unit and a signal receiving unit provided on adjacent loading platforms; the signal sending unit sends a signal from one loading platform, and the signal receiving unit on the other loading platform receives the signal; the spacing feedback module obtains the distance information between adjacent loading platforms and sends it to the central control unit;

[0016] The spacing feedback module is used to feed back spacing data information of adjacent loading platforms in real time.

[0017] Also includes:

[0018] The central control unit is used to analyze and process the instructions received from the test personnel and the data transmitted by the spacing feedback module through the set control logic module, adjust the spacing between adjacent loading platforms, and control the movement of the loading platforms.

[0019] Slide rails and linear drive components; wherein,

[0020] The slide rail is arranged outside the loading platform and is used to limit the moving track of the loading platform;

[0021] The linear drive member is arranged between two adjacent loading platforms;

[0022] The linear drive member pushes a connected loading platform to move within the slide rail, so as to adjust the distance between two adjacent loading platforms.

[0023] The slide rail and the loading platform are slidably connected via rollers.

[0024] The mobile mechanism includes a base frame and a supporting platform:

[0025] The bottom frame is slidably connected to the supporting platform through the guide rail;

[0026] A supporting platform is arranged on the base frame and is used to support the loading platform; a hydraulic driving component is arranged on one side of the bottom of the supporting platform;

[0027] The hydraulic drive component pushes the supporting platform to move along the guide rail, and the supporting platform moves with the loading platform.

[0028] The base frame is connected with an indicator light, which can provide feedback of the position information of the platform through on and off status or color change.

[0029] A control method for a test system for high and low voltage equipment, the method adopts the above-mentioned test system for high and low voltage equipment; the control method comprises the following steps:

[0030] S1: The central control unit receives the test instructions from the test personnel and obtains the safety distance data between the test devices;

[0031] S2: The central control unit sends instructions to the spacing adjustment component and the moving mechanism at the same time;

[0032] S3: The spacing feedback module detects the distance between adjacent loading platforms in real time and transmits the distance information to the central control unit;

[0033] S4: According to the real-time distance information, the spacing adjustment component drives the distance between adjacent loading platforms to extend until a safe distance is reached;

[0034] S5: The mobile mechanism moves the loading platform to the designated test position in the workshop, and the test personnel test the test device;

[0035] S6: After the test is completed, the central control unit sends a reset command to the moving mechanism and the spacing adjustment component at the same time. The moving mechanism holds the loading platform back to its original position, and the spacing adjustment component shrinks the distance between adjacent loading platforms.

[0036] When the spacing adjustment component is extended or retracted, a movement mode is adopted in which uniform acceleration is first adopted, a constant speed is maintained, and finally a uniform deceleration is adopted.

[0037] The moving speed of the supporting platform is changed by controlling the regulating valve connected to the hydraulic drive element; wherein the speed is calculated as follows:

[0038]

[0039] Where e = qs

[0040]

[0041]

[0042] Among them, y (x) is the output speed, K pis the scale parameter, K i is the integration parameter, K d is the differential parameter, e x is the input deviation, e x-1 is the deviation of the previous sample, is the deviation accumulated during the proportional action time. The maximum value of the accumulated deviation is set to A to limit the maximum initial speed of the mechanism. The deviation e is the difference between the expected output q and the actual output value s. V n is the speed of the position detection sensor when it transmits the position information for the nth time, S n , S n-1 is the position information transmitted by the position detection sensor for the nth and n-1th times, and t is the interval time of transmitting information. The system is adjusted by changing the values ​​of three parameters (integral, differential, and proportional) to maintain the stability of the system.

[0043] Beneficial effects:

[0044] First, the test system described in the present invention controls the distance between the test devices through the spacing adjustment component, and can quickly adjust the position of the test equipment to adapt it to different test equipment requirements; and with the help of a moving mechanism, the test device that maintains a safe distance is driven to move as a whole to the braking test position, and can be retracted to a designated storage position after the test is completed; thereby, the present invention plays a role in improving the adaptability of the test device, reducing the occupied space and facilitating the test.

[0045] Second, the test method described in the present invention can accurately control the moving speed of the loading platform through the precise control of the regulating valve; and, through the stable control of the speed, the stability of the loading platform can be ensured; further, the control of the extension and retraction between adjacent loading platforms and the control of the movement of the entire loading platform on the bracket can be carried out synchronously, and there will be no sudden acceleration or deceleration causing the loading platform to be impacted due to inertia; thereby, the present application plays a role in reducing the test preparation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a structural schematic diagram of the actuator 1 of the present invention;

[0047] Figure 2 The installation diagram of the position detection device of the present invention is

[0048] Figure 3 It is a block diagram of the control system of the present invention.

[0049] In the figure: 1. chassis; 2. front loading platform; 3. rear loading platform; 4. linear drive; 5. hydraulic drive; 6. slide rail; 7. drag chain; 8. distance sensor; 9. buffer cotton; 10. test device; 11. mounting seat; 12. sound wave generator; 13. trigger board; 14. indicator light. DETAILED DESCRIPTION

[0050] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0051] like Figure 1-2 As shown, the present application designs a test system for high and low voltage equipment, in which the test device is placed in a workshop; there are multiple loading platforms for carrying the test device; the central control unit analyzes and processes the instructions received from the test personnel and the data transmitted by the spacing detection mechanism through the control logic module provided, and controls the action of the actuator and the state of the indicator light; the actuator unit includes a spacing adjustment component and a moving mechanism; wherein the spacing adjustment component is connected between adjacent loading platforms to adjust the distance between adjacent loading platforms; the moving mechanism is arranged under the loading platform to carry the loading platform to a specified position; the spacing feedback module includes a signal sending part and a signal receiving part arranged on adjacent loading platforms; the signal sending part sends a signal from a loading platform on one side, and the signal receiving part on the loading platform on the other side receives the signal; the spacing feedback module obtains the distance information between adjacent loading platforms and sends it to the central control unit.

[0052] like Figure 1 As shown, in order to improve the efficiency of the preparation work done by the test equipment before the test, the spacing feedback module designed in this device feeds back the spacing between adjacent loading platforms in real time. After the spacing adjustment component controls the adjacent loading platforms to stretch to a safe spacing, the moving mechanism drives the test load with the safety distance adjusted to move to the designated test position; thereby, the test preparation time is shortened.

[0053] like Figure 1 As shown, in order to achieve safe distance adjustment between two test equipments, the device is also designed with a slide rail and a linear drive component; wherein the slide rail is arranged outside the loading platform to limit the moving trajectory of the loading platform; the linear drive component is arranged between two adjacent loading platforms; the linear drive component pushes a section of connected loading platforms to move in the slide rail to adjust the distance between two adjacent loading platforms.

[0054] Specifically, in order to improve the movement efficiency of the loading platform, the device is designed to connect the slide rail and the loading platform through roller sliding; and in order to ensure that the distance selection between the test equipment is more flexible and changeable, the linear drive component of the device is set as a multi-stage cylinder.

[0055] like Figure 1As shown, in order to ensure that the test equipment with a properly adjusted safety distance can be conveniently moved to the designated test position, the device is provided with a moving mechanism including a base frame and a supporting platform: the base frame is slidably connected to the supporting platform through a guide rail; the supporting platform is arranged on the base frame and is used to support the loading platform; a hydraulic driving component is provided on one side of the bottom of the supporting platform; the hydraulic driving component pushes the supporting platform to move along the guide rail, and the supporting platform moves with the loading platform.

[0056] like Figure 2 As shown, in order to enable the operator to better monitor the status of the test equipment, the device is provided with an indicator light connected to the base frame, and the indicator light can feedback the position information of the platform through the on and off state or color change.

[0057] In order to improve the central control unit's control over the distance between test equipment, this device sets the spacing feedback module as a distance sensor, whose signal sending part is a sound wave generator and whose signal receiving part is a trigger board; or, the spacing feedback module can also be set as a laser distance sensor.

[0058] like Figure 3 As shown, the control method of the test system for high and low voltage equipment designed by the device includes the following steps:

[0059] S1: The central control unit receives the test instructions from the test personnel and obtains the safety distance data between the test devices;

[0060] S2: The central control unit sends instructions to the spacing adjustment component and the moving mechanism at the same time;

[0061] S3: The spacing feedback module detects the distance between adjacent loading platforms in real time and transmits the distance information to the central control unit;

[0062] S4: According to the real-time distance information, the spacing adjustment component drives the distance between adjacent loading platforms to extend until a safe distance is reached;

[0063] S5: The mobile mechanism moves the loading platform to the designated test position in the workshop, and the test personnel test the test device;

[0064] S6: After the test is completed, the central control unit sends a reset command to the moving mechanism and the spacing adjustment component at the same time. The moving mechanism holds the loading platform back to its original position, and the spacing adjustment component shrinks the distance between adjacent loading platforms.

[0065] In order to ensure the stable operation of the test equipment and prevent damage to the test equipment caused by inertia, the spacing adjustment component designed in this device can adopt a movement mode of first uniform acceleration, then constant speed maintenance, and finally uniform deceleration when extending and retracting.

[0066] Specifically, the device changes the moving speed of the supporting platform by controlling the regulating valve connected to the hydraulic drive element; and the speed calculation formula is as follows:

[0067]

[0068] Where e = qs

[0069]

[0070]

[0071] Among them, y (x) is the output speed, K p is the scale parameter, K i is the integration parameter, K d is the differential parameter, e x is the input deviation, e x-1 is the deviation of the previous sample, is the deviation accumulated during the proportional action time. The maximum value of the accumulated deviation is set to A to limit the maximum initial speed of the mechanism. The deviation e is the difference between the expected output q and the actual output value s. V n is the speed of the position detection sensor when it transmits the position information for the nth time, S n , S n-1 is the position information transmitted by the position detection sensor for the nth and n-1th times, and t is the interval time of transmitting information. The system is adjusted by changing the values ​​of three parameters (integral, differential, and proportional) to maintain the stability of the system.

Claims

1. A test system for high and low voltage equipment, comprising a plurality of test devices; characterized in that: Also includes: A loading platform, provided with a plurality of them, for carrying the corresponding test devices; A spacing adjustment component, connected between adjacent loading platforms, for adjusting the distance between adjacent loading platforms; A moving mechanism, disposed below the loading platform, for carrying the loading platform and moving it to a designated position; After the spacing adjustment component controls the adjacent loading platforms to stretch to a safe spacing, the moving mechanism drives the test device with the safety distance adjusted to move to a designated test position.

2. The test system for high and low voltage equipment according to claim 1, characterized in that: Also includes: A spacing feedback module, comprising a signal sending unit and a signal receiving unit provided on adjacent loading platforms; the signal sending unit sends a signal from one loading platform, and the signal receiving unit on the other loading platform receives the signal; the spacing feedback module obtains the distance information between adjacent loading platforms and sends it to the central control unit; The spacing feedback module is used to feed back spacing data information of adjacent loading platforms in real time.

3. The test system for high and low voltage equipment according to claim 2, characterized in that: Also includes: The central control unit is used to analyze and process the instructions received from the test personnel and the data transmitted by the spacing feedback module through the set control logic module, adjust the spacing between adjacent loading platforms, and control the movement of the loading platforms.

4. The test system for high and low voltage equipment according to claim 1, characterized in that: The spacing adjustment assembly includes: a slide rail and a linear drive member; wherein, The slide rail is arranged outside the loading platform and is used to limit the moving track of the loading platform; The linear drive member is arranged between two adjacent loading platforms; The linear drive member pushes a connected loading platform to move within the slide rail, so as to adjust the distance between two adjacent loading platforms.

5. The test system for high and low voltage equipment according to claim 4, characterized in that: The slide rail and the loading platform are slidably connected via rollers.

6. The test system for high and low voltage equipment according to claim 1, characterized in that: The mobile mechanism includes a base frame and a supporting platform: The bottom frame is slidably connected to the supporting platform through the guide rail; A supporting platform is arranged on the base frame and is used to support the loading platform; a hydraulic driving component is arranged on one side of the bottom of the supporting platform; The hydraulic drive component pushes the supporting platform to move along the guide rail, and the supporting platform moves with the loading platform.

7. The test system for high and low voltage equipment according to claim 6, characterized in that: The base frame is connected with an indicator light, which can provide feedback of the position information of the platform through on and off status or color change.

8. A control method for a test system for high and low voltage equipment, the method adopting the test system for high and low voltage equipment according to any one of claims 1 to 7; characterized in that: The control method comprises the following steps: S1: The central control unit receives the test instructions from the test personnel and obtains the safety distance data between the test devices; S2: The central control unit sends instructions to the spacing adjustment component and the moving mechanism at the same time; S3: The spacing feedback module detects the distance between adjacent loading platforms in real time and transmits the distance information to the central control unit; S4: According to the real-time distance information, the spacing adjustment component drives the distance between adjacent loading platforms to extend until a safe distance is reached; S5: The mobile mechanism moves the loading platform to the designated test position in the workshop, and the test personnel test the test device; S6: After the test is completed, the central control unit sends a reset command to the moving mechanism and the spacing adjustment component at the same time. The moving mechanism holds the loading platform back to its original position, and the spacing adjustment component shrinks the distance between adjacent loading platforms.

9. The control method for the test system of high and low voltage equipment according to claim 8, characterized in that: When the spacing adjustment component is extended or retracted, a movement mode is adopted in which uniform acceleration is first adopted, a constant speed is maintained, and finally a uniform deceleration is adopted.

10. The control method for the test system of high and low voltage equipment according to claim 9, characterized in that: The moving speed of the supporting platform is changed by controlling the regulating valve connected to the hydraulic drive element; wherein the speed is calculated as follows: Where e = qs Among them, y (x) is the output speed, K p is the scale parameter, K i is the integration parameter, K d is the differential parameter, e x is the input deviation, e x-1 is the deviation of the previous sample, is the deviation accumulated during the proportional action time. The maximum value of the accumulated deviation is set to A to limit the maximum initial speed of the mechanism. The deviation e is the difference between the expected output q and the actual output value s. V n is the speed of the position detection sensor when it transmits the position information for the nth time, S n , S n-1 is the position information transmitted by the position detection sensor for the nth and n-1th times, and t is the interval time of transmitting information. The system is adjusted by changing the values ​​of three parameters (integral, differential, and proportional) to maintain the stability of the system.

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