Single-phase double-column shunt reactor fault simulation device and method

Abstract

The invention relates to the field of reactor fault simulation, in particular to a single-phase double-column paralleling reactor fault simulation device and method, a device body is of a double-silicon-steel-sheet iron core column structure, a winding is wound on the column, and iron yokes are arranged on the periphery of the column. The iron core column is pressed by a pressing bolt at the top of the transformer body; the upper iron yoke, the lower iron yoke and the side iron columns are fastened through U-shaped steel clamps and clamping bolts, and the iron yokes are connected through four screws on a clamping piece. The upper and lower ends of the winding are pressed by insulating plates and fixing bolts. The device can accurately simulate various mechanical faults such as core limb looseness, yoke lamination looseness, inter-yoke looseness and winding looseness at different positions and severity degrees, realizes fault evolution dynamic observation and signal characteristic analysis under different loads, and provides a systematic test basis for subsequent construction of a fault diagnosis model and an active defense strategy.

Description

Technical Field

[0001] The present invention relates to the field of reactor fault simulation, and in particular to a single-phase double-column shunt reactor fault simulation device and method. Background Art

[0002] Against the backdrop of the rapid evolution of ultra-high voltage (UHV) transmission technology, UHV reactors, as key reactive power compensation devices in ultra-high / ultra-high voltage (UHV) power grids, have a direct impact on grid stability through their voltage regulation capabilities, overvoltage suppression characteristics, and system economic operating parameters. In engineering practice, the dual-column topology has become the mainstream configuration for UHV reactors, thanks to its superior leakage flux suppression capabilities and acoustic performance optimization. However, the mechanical vibration generated by this equipment during long-term operation still poses a significant technical challenge. In severe cases, it can induce insulation breakdown and structural damage, leading to unplanned grid outages and jeopardizing power supply stability. Existing online monitoring systems face technical bottlenecks such as insufficient data acquisition accuracy and poor adaptability of fault feature extraction algorithms. These bottlenecks make it difficult to promptly identify latent equipment defects, exacerbating grid operation risks. Furthermore, testing of UHV equipment itself is limited by high safety risks and high experimental costs.

[0003] The causes of reactor failure are complex and can be categorized primarily as electrical and mechanical failures. Electrical failures manifest as insulation damage, interturn short circuits, and overheating. Mechanical failures include loose clamping bolts, loose cores, and winding deformation. Reactor mechanical failures are latent and difficult to detect.

[0004] Electrical faults such as reactor temperature rise and discharge will only occur after mechanical faults accumulate to a certain extent. To avoid larger accidents, it is necessary to predict mechanical faults in advance and repair the reactor in the early stages of the fault.

[0005] Currently, the data signals collected for mechanical fault diagnosis of UHV reactors mostly come from the UHV reactor bodies in large substations. The data volume is small and difficult to obtain.

[0006] According to the definition of the International Electrotechnical Commission (IEC), UHV includes alternating current (AC) and direct current (DC). The voltage level of alternating current (AC) reaches 1000 kilovolts (kV) and above; the voltage level of direct current (DC) reaches ±800 kV and above. Summary of the Invention

[0007] In view of the defect in the prior art that it is difficult to collect data signals when a UHV reactor has a mechanical fault, the present invention proposes a single-phase double-pole shunt reactor fault simulation device and method;

[0008] In a first aspect, a single-phase double-column shunt reactor fault simulation device is proposed for conducting a fault simulation experiment of an ultra-high voltage reactor, comprising: a reactor and a simulation detection device; the reactor comprises a reactor body, wherein the reactor body is provided with an upper iron yoke, two side iron columns, a lower iron yoke, two windings, and two iron core columns;

[0009] The simulation detection device includes a first simulation detection unit and a collector; the first simulation detection unit is used to simulate and detect a loose core leg fault, and includes a first torque sensor and a clamping bolt corresponding to each core leg, the clamping bolt being located at the top of the reactor body and being used to clamp the corresponding core leg; the first torque sensor is used to collect the torque value of the clamping bolt;

[0010] The collector includes a first vibration sensor located at the corner of the upper iron yoke and a second vibration sensor located at the corner of the lower iron yoke

[0011] In a second aspect, a fault simulation method based on any one of the above-mentioned fault simulation devices is proposed, including a loosening simulation method, wherein the loosening simulation method comprises the following steps:

[0012] Determine the fault simulation type;

[0013] Determine the target control structure based on the fault simulation type;

[0014] Starting a torque sensor corresponding to a target control structure;

[0015] Starting a collector, wherein the collector is a first vibration sensor and a second vibration sensor;

[0016] The torque of the target control structure is adjusted until it reaches a preset value, and the collector is controlled to collect the corresponding vibration signal.

[0017] Generate fault simulation data based on the corresponding torque data and the vibration signal and upload the data;

[0018] When the fault simulation type is a core column loosening fault, the target control structure is a partial or complete tightening of the bolts.

[0019] The beneficial effect of the present invention is that by testing a single-phase double-column shunt reactor with the present invention, research can be carried out on monitoring and detection devices for core column loosening faults of different severity and different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front structural diagram of a single-phase double-column shunt reactor fault simulation device according to an embodiment of the present invention;

[0021] Figure 2This is a schematic diagram of the reverse structure of a single-phase double-column shunt reactor fault simulation device according to an embodiment of the present invention;

[0022] Figure 3 This is a side structural diagram of a single-phase double-column shunt reactor fault simulation device according to an embodiment of the present invention;

[0023] Figure 4 1. It is a connection diagram of the reactor inter-turn short-circuit device according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the arrangement of vibration sensor measuring points when conducting a vibration experiment on a reactor according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the statistical results of the frequency components of the three-axis vibration signal of the reactor at the No. 1 measuring point when the voltage level is 200-240V according to the embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the total energy statistics of the triaxial vibration signal at measuring point 1 of the reactor according to an embodiment of the present invention when the voltage level is 200-240V;

[0027] Figure 8 This is a schematic diagram of statistical results of the frequency components of the z-axis vibration signal at 240V voltage level at 7 measurement points based on the reactor according to an embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of the statistical results of the total energy of the z-axis vibration signal at 240V voltage level at 7 measuring points based on the reactor according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] At the moment when UHV power transmission technology is developing rapidly, UHV reactors, as indispensable reactive power regulation equipment in UHV power transmission systems, play a key role in maintaining grid voltage stability, suppressing overvoltage, and improving system operation flexibility and economy. Among them, UHV reactors with a double-column structure are widely used because of their excellent performance in controlling magnetic leakage, reducing noise and vibration, etc. In view of the fact that it is relatively difficult to conduct fault experiments and fault signal collection directly on UHV reactors, the use of simulation experiments has become a more feasible and effective research method. The present invention relates to a single-phase dry double-column parallel reactor (hereinafter referred to as reactor) specially used for conducting fault experiments on UHV reactors. Sensors can be directly placed on the reactor body. Compared with the UHV reactor body experiment in which sensors can only be placed on the oil tank wall, the fault signals collected by the present invention can better reflect its fault characteristics.

[0030] The single-phase two-pole shunt reactor provided by the present invention can simulate various typical faults such as short circuit between winding turns, loose core poles, loose iron yoke laminations, loose iron yokes, and loose windings with different severities and positions, and realize the simulation of the normal state and various fault states of the single-phase two-pole shunt reactor. It can complete the research and verification test of the single-phase two-pole shunt reactor faults, and provide data support for subsequent research on fault early warning.

[0031] like Figures 1-4 As shown, the main structure of the fault simulation device includes a reactor and a simulation detection device. The reactor includes a reactor body 63. The reactor body 63 is provided with an upper iron yoke 57, two side iron columns 58, a lower iron yoke 59, two windings 55, 56, and two iron core columns 18, 19.

[0032] The simulation detection device includes a collector, which includes at least one vibration sensor for collecting vibration information to facilitate subsequent diagnosis and analysis of mechanical faults based on the vibration signal; Figure 5 , pre-select 7 measuring points including the upper yoke of the reactor, the upper yoke corner, the side iron column, the lower yoke corner, the lower yoke, the upper part of the winding, and the lower part of the winding for measurement point arrangement, and mark them as measuring point 1, measuring point 2, measuring point 3, measuring point 4, measuring point 5, measuring point 6, and measuring point 7 respectively;

[0033] Reference Figure 6-Figure 9 As shown in Figure 2, the vibration signals at different measuring points are analyzed, such as Figure 6 As shown in Figure 1, the vibration signals of the x, y, and z axes at measuring point 1 have the highest frequency component of 100 Hz at all voltage levels, and are mixed with high-order harmonic components ranging from 200 to 400 Hz. Figure 7 As shown in Figure 1, the higher the voltage level, the greater the total vibration energy corresponding to measuring point 1, and the characteristics of its vibration signal are more prominent; Figure 8 and Figure 9 As shown in the figure, a comparative analysis of the vibration signals of the seven measuring points shows that the z-axis vibration signals of the seven measuring points are mixed with high-order harmonic components ranging from 200 to 400 Hz, among which the total vibration energy of measuring points 2 and 4 is relatively large;

[0034] In summary, comparing the vibration signals from all directions of the reactor shows a clear reduction in high-order harmonic components in the axial (vertical) direction. Therefore, analyzing the vertical vibration signals of the reactor yields better measurement results. Comparing the vibration signals at seven measurement points reveals that the total vibration energy at measurement points 2 and 4 is greater. Therefore, as a possible implementation, the collector includes a first vibration sensor and a second vibration sensor. The first vibration sensor is installed at measurement point 2, at the upper yoke corner; the second vibration sensor is installed at measurement point 4, at the lower yoke corner.

[0035] The simulation detection device includes:

[0036] A first simulation detection unit, used to simulate and detect a core column loosening fault, comprising a first torque sensor and two clamping bolts 1 and 2;

[0037] The clamping bolts 1 and 2 correspond to the core columns 18 and 19 one by one. The clamping bolts 1 and 2 are located at the top of the reactor body 63 and are used to clamp the two core columns 18 and 19.

[0038] The first torque sensor is used to collect the torque value of the clamping bolts 1 and 2, and the torque value is collected and transmitted to the computer through a data acquisition card for real-time monitoring.

[0039] Those skilled in the art can use reactors to simulate loosening faults of different severity and different core legs according to actual needs;

[0040] For example, when the clamping bolts 1 and 2 are not loosened, the simulated reactor is in normal operating state; when the clamping bolts 1 and 2 are loosened to simulate the loose state of the reactor core column, the smaller the clamping bolt torque is, the more serious the fault is; reducing the torque of different clamping bolts means that faults have occurred in different core columns.

[0041] The first torque sensor installed on the hold-down bolts collects torque values to determine the fault condition. If the torque of at least one of hold-down bolts 1 is less than 12 N·m, core leg 18 is loose. If the torque of at least one of hold-down bolts 2 is less than 12 N·m, core leg 19 is loose. The first and second vibration sensors installed on the reactor collect vibration signals to provide data support for subsequent fault analysis.

[0042] The second simulation detection unit is used to simulate and detect the loosening fault of the iron yoke lamination, which includes a second torque sensor, clamping devices located on both sides of the upper iron yoke 57, clamping devices located on both sides of the side iron column 58, clamping devices located on both sides of the lower iron yoke 59, and 12 clamping bolts 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, and 52;

[0043] Among them, the clamping devices all use U-shaped steel clamping parts, which are facing away from the corresponding upper iron yoke, side iron column or lower iron yoke, with the opening facing outward. The U-shaped steel clamping parts include a back plate, an upper plate and a lower plate perpendicular to the back plate.

[0044] In this embodiment, U-shaped steel clamping members 61 are provided on both sides of the upper iron yoke 57, U-shaped steel clamping members 60 are provided on both sides of the side iron column 58, and U-shaped steel clamping members 62 are provided on both sides of the lower iron yoke 59;

[0045] The clamping bolts 41, 42, and 43 correspond to the U-shaped steel clamping piece 61 corresponding to the upper iron yoke 57; the clamping bolts 44, 45, 46, 47, 48, and 49 correspond to the U-shaped steel clamping piece 60 corresponding to the side iron column 58; the clamping bolts 50, 51, and 52 correspond to the U-shaped steel clamping piece 62 of the lower iron yoke 59; wherein, the clamping bolts 41, 42, and 43 are located at the upper part of the reactor body 63, and clamp the upper iron yoke 57 through the back plate of the U-shaped steel clamping piece 61; the clamping bolts 44, 45, 46, 47, 48, and 49 are located in the middle part of the reactor body 63, and clamp the side iron column 58 through the back plate of the U-shaped steel clamping piece 60; the clamping bolts 50, 51, and 52 are located at the lower part of the reactor body 63, and clamp the lower iron yoke 59 through the back plate of the U-shaped steel clamping piece 62.

[0046] The second torque sensor is used to collect the torque values of the clamping bolts 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, and 52, and collects the torque values through a data acquisition card and transmits them to a computer for real-time monitoring.

[0047] Those skilled in the art can simulate loosening failures of the iron yoke laminates of different severity and locations by adjusting the clamping force of the clamping bolts according to actual needs.

[0048] For example, when the clamping bolts 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, and 52 are not loosened, the simulated reactor is in normal operating condition; when the clamping bolts 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51 and / or 52 are loosened to simulate the loose state of the reactor iron yoke lamination, the smaller the clamping bolt torque is, the more serious the fault is; reducing the torque of different clamping bolts means that a fault has occurred at different positions of the iron yoke.

[0049] The fault condition is determined by collecting torque values from the second torque sensor installed on the clamping bolts. If the torque of at least one of the clamping bolts 41, 42, and 43 is less than 10 N·m, the upper iron yoke 57 has loosened its yoke lamination. If the torque of at least one of the clamping bolts 44, 45, 46, 47, 48, and 49 is less than 10 N·m, the side iron column 58 has loosened its yoke lamination. If the torque of at least one of the clamping bolts 50, 51, and 52 is less than 10 N·m, the lower iron yoke 59 has loosened its yoke lamination. The first and second vibration sensors installed on the reactor collect corresponding vibration signals to provide data support for subsequent fault analysis.

[0050] Note: When the loosening fault corresponds to multiple clamping bolts, technicians in this field can adjust the torque of one or more clamping bolts according to actual needs to conduct corresponding loosening tests.

[0051] The third simulation detection unit is used to simulate and detect the looseness fault between the iron yokes, which includes a third torque sensor, a U-shaped steel clamping piece 61 of the clamping device of the upper iron yoke 57, a U-shaped steel clamping piece 62 of the clamping device of the lower iron yoke 59, and four screws 4, 5, 20, and 21;

[0052] The screws 4 , 5 , 20 , 21 are located at the four corners of the reactor body 63 , and tighten the upper iron yoke 57 , the side iron columns 58 and the lower iron yoke 59 through the lower plate of the U-shaped steel clamp 61 and the upper plate of the U-shaped steel clamp 62 .

[0053] The third torque sensor is used to collect the torque values of the screws 4, 5, 20, and 21, and collect the torque values through a data acquisition card and transmit them to a computer for real-time monitoring.

[0054] Those skilled in the art can simulate loosening faults between the iron yokes of different severity and different positions by adjusting the pressing force of the screw according to actual needs;

[0055] For example, when screws 4, 5, 20, and 21 are not loosened, the simulated reactor is in normal operating state; when screws 4, 5, 20 and / or 21 are loosened to simulate the loose state between the reactor iron yokes, the smaller the screw torque, the more serious the fault; reducing different screw torques means that faults have occurred at different positions between the iron yokes.

[0056] The third torque sensor installed on the screw collects the corresponding torque value to determine the fault condition. If the torque of at least one of screws 4 and 21 is less than 15 N·m, it indicates that the iron yoke on the right side of reactor body 63 is loose. If the torque of at least one of screws 5 and 20 is less than 15 N·m, it indicates that the iron yoke on the left side of reactor body 63 is loose. The first and second vibration sensors installed on the reactor collect corresponding vibration signals to provide data support for subsequent fault analysis.

[0057] Note: When the loosening fault corresponds to multiple screws, technicians in this field can adjust the torque of one or more screws according to actual needs to conduct corresponding loosening tests.

[0058] a fourth simulation detection unit, for simulating and detecting a winding loosening fault, comprising a fourth torque sensor, a U-shaped steel clamping piece 61 of the upper iron yoke 57 clamping device, a U-shaped steel clamping piece 62 of the lower iron yoke 59 clamping device, four insulating plates 22, 23, 24, 25, and 16 fixing bolts 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 53, 54;

[0059] The insulating plates 22, 24 and the fixing bolts 27, 29, 30, 33, 34, 37, 38, 53 correspond to the winding 55; the insulating plates 23, 25 and the fixing bolts 28, 31, 32, 35, 36, 39, 40, 54 correspond to the winding 56; the fixing bolts 27, 37, 38, 53 correspond to the lower plate of the U-shaped steel clamping piece 61 of the clamping device of the upper iron yoke 57, and the winding 55 is pressed by the insulating plate 22; the fixing bolts 29, 30, 33, and 34 correspond to the upper plate of the U-shaped steel clamping part 62 of the clamping device of the lower iron yoke 59, and press the winding 55 through the insulating plate 24; the fixing bolts 28, 39, 40, and 54 correspond to the lower plate of the U-shaped steel clamping part 61 of the clamping device of the upper iron yoke 57, and press the winding 56 through the insulating plate 23; the fixing bolts 31, 32, 35, and 36 correspond to the upper plate of the U-shaped steel clamping part 62 of the clamping device of the lower iron yoke 59, and press the winding 56 through the insulating plate 25.

[0060] The fourth torque sensor is used to collect the torque values of the fixing bolts 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 53, and 54, and collect the torque values through a data acquisition card and transmit them to a computer for real-time monitoring.

[0061] Those skilled in the art can simulate loosening faults of different severities and windings by adjusting the tightening force of the fixing bolts according to actual needs;

[0062] For example, when the fixing bolts 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 53, and 54 are not loosened, the simulated reactor is in normal operating condition; when the fixing bolts 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 53, and / or 54 are loosened to simulate the loose state of the reactor winding, the smaller the fixing bolt torque is, the more serious the fault is; reducing the torque of different fixing bolts means that faults have occurred in different windings.

[0063] The fault condition is determined by collecting torque values from the fourth torque sensor installed on the fixing bolts. If the torque of at least one of fixing bolts 27, 29, 30, 33, 34, 37, 38, and 53 is less than 10 N·m, winding 55 is loose. If the torque of at least one of fixing bolts 28, 31, 32, 35, 36, 39, 40, and 54 is less than 10 N·m, winding 56 is loose. The first and second vibration sensors installed on the reactor collect vibration signals to provide data support for subsequent fault analysis.

[0064] a fifth simulation detection unit, for simulating and detecting a winding inter-turn short circuit fault, comprising an insulating plate 3 and 12 taps 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, and 17;

[0065] The taps 6, 7, 8, 9, 10, and 11 correspond to the winding 55; the taps 12, 13, 14, 15, 16, and 17 correspond to the winding 56. Figure 4 As shown, a total of 12 copper wires are led out from the two windings 55 and 56 to taps 6-17 of the front insulating plate 3 of the reactor body 63. The first and last copper wires of each winding are led out from the head and tail of the winding to connect to taps 6, 11, 12, and 17, and the remaining four copper wires are led out from the middle of the winding to connect to taps 7, 8, 9, 10, 13, 14, 15, and 16. Each winding has a total of 235 turns of coil, and each copper wire is separated by 47 turns of coil.

[0066] Those skilled in the art can simulate winding turn-to-turn short-circuit faults of different severity and locations by short-circuiting taps 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, and 17 of the front insulating plate 3 according to actual needs;

[0067] For example, taps 6 and 12 are connected to the power supply, and taps 11 and 17 are connected, that is, the two windings are connected in series, simulating the normal operation of the inductor; when simulating the loose state of the inductor winding, the more taps there are between the two short-circuited taps, the more serious the fault is; short-circuiting two taps at different positions means that faults have occurred at different positions.

[0068] The corresponding vibration signals are collected by the first vibration sensor and the second vibration sensor installed on the reactor to provide data support for subsequent fault analysis.

[0069] The present invention also provides a fault simulation method, which includes a loosening simulation method and a short circuit simulation method. The loosening simulation method includes the following steps:

[0070] Determine the fault simulation type;

[0071] Determine the target control structure based on the fault simulation type;

[0072] Starting a torque sensor corresponding to a target control structure;

[0073] Starting a collector, wherein the collector is a first vibration sensor and a second vibration sensor;

[0074] The torque of the target control structure is adjusted until it reaches a preset value, and the collector is controlled to collect the corresponding vibration signal.

[0075] Fault simulation data is generated based on the corresponding torque data and the vibration signal and uploaded.

[0076] The fault simulation types include core column loose fault, iron yoke lamination loose fault, iron yoke loose fault, winding loose fault;

[0077] When the fault simulation type is a loose core column fault, the target control structure is the clamping bolt 1 and / or the clamping bolt 2.

[0078] When the fault simulation type is a loose iron yoke lamination fault, those skilled in the art can select corresponding clamping bolts from the first clamping bolt group, the second clamping bolt group, and / or the third clamping bolt group as the target control structure according to actual needs;

[0079] The first clamping bolt group includes clamping bolts 41, 42, and 43, which are used to simulate the loosening of the iron yoke lamination corresponding to the upper iron yoke 57;

[0080] The second clamping bolt group includes clamping bolts 44, 45, 46, 47, 48, and 49, which are used to simulate the loosening of the iron yoke lamination corresponding to the side iron column 58;

[0081] The third clamping bolt group includes clamping bolts 50 , 51 , and 52 , and is used to simulate the loosening of the iron yoke lamination corresponding to the lower iron yoke 59 .

[0082] When the fault simulation type is a loose fault between iron yokes, those skilled in the art can select a corresponding screw from the first screw group and / or the second screw group as the target control structure according to actual needs;

[0083] The first screw group includes screws 4 and 21, which are used to simulate the looseness between the iron yokes on the corresponding sides of the reactor body 63;

[0084] The first screw rod group includes screw rods 5 and 20, which are used to simulate the looseness between the iron yokes on the corresponding sides of the reactor body 63.

[0085] When the fault simulation type is a winding loose fault, those skilled in the art can select corresponding fixing bolts from the fourth fixing bolt group and / or the fifth fixing bolt group as the target control structure according to actual needs;

[0086] The fourth fixing bolt group includes fixing bolts 27, 29, 30, 33, 34, 37, 38, and 53, which are used to simulate a loose fault corresponding to the winding 55;

[0087] The fourth fixing bolt group includes fixing bolts 28 , 31 , 32 , 35 , 36 , 39 , 40 , and 54 , and is used to simulate a loosening fault corresponding to the winding 56 .

[0088] The short circuit simulation method comprises the following steps:

[0089] When performing a short-circuit fault simulation, determining a first tap and a second tap;

[0090] short-circuiting the first tap and the second tap;

[0091] The collector collects corresponding vibration signals, generates corresponding fault simulation data based on the vibration signals, and uploads the data.

[0092] By testing single-phase, dual-pole shunt reactors with this invention, researchers can develop monitoring and detection devices for a variety of typical faults, including inter-turn short circuits, loose core legs, loose yoke laminations, loose yokes, and loose windings, with varying severity and location. Characteristic analysis of fault signals enables dynamic observation of fault evolution patterns under varying load conditions. Based on these fault characteristics, a systematic fault diagnosis model and active defense strategy can be established.

[0093] The body structure, winding system, magnetic shielding components and other parts of the single-phase double-pole shunt reactor of the present invention are in accordance with IEC289:1987 reactors, GB10229-88 reactors (eqvIEC289:1987), JB9644-1999 semiconductor electric transmission power supply.

[0094] Reactors and other standard designs and manufacturing.

[0095] The above is a detailed introduction to the technical solution of the present invention. Any content involving the present invention and related scope will be regarded as plagiarism.

Claims

1. A single-phase double-column shunt reactor fault simulation device, used for conducting UHV reactor fault simulation experiments, characterized in that: include: Reactors and analog detection devices; The reactor comprises a reactor body, wherein an upper iron yoke, two side iron columns, a lower iron yoke, two windings and two iron core columns are arranged in the reactor body; The simulation detection device includes a first simulation detection unit and a collector; a first simulation detection unit, configured to simulate and detect a loose core leg fault, comprising a first torque sensor and a clamping bolt corresponding to each core leg, the clamping bolt being located at the top of the reactor body and configured to clamp the corresponding core leg; the first torque sensor being configured to collect a torque value of the clamping bolt; The collector includes a first vibration sensor located at a corner of the upper iron yoke and a second vibration sensor located at a corner of the lower iron yoke.

2. The single-phase double-column shunt reactor fault simulation device according to claim 1, characterized in that: The simulation detection device further includes a second simulation detection unit for simulating and detecting a loosening fault of the iron yoke lamination; The second analog detection unit includes: a second torque sensor; A clamping device and a plurality of clamping bolts located on both sides of the upper iron yoke; A clamping device and a plurality of clamping bolts located on both sides of the side iron column; and a clamping device and a plurality of clamping bolts located on both sides of the lower iron yoke; Through the clamping bolts, the corresponding clamping device is used to tighten the corresponding upper iron yoke, side iron column or lower iron yoke; The second torque sensor is used to collect the torque value of each clamping bolt.

3. The single-phase double-column shunt reactor fault simulation device according to claim 2, characterized in that: The clamping device is a U-shaped steel clamping piece.

4. The single-phase double-column shunt reactor fault simulation device according to claim 3, characterized in that: It also includes a third simulation detection unit for simulating and detecting a loose fault between the iron yokes; The third simulation detection unit includes: a third torque sensor; Screws are located at the four corners of the reactor body, and the screws tighten the upper iron yoke, the side iron columns and the lower iron yoke through the U-shaped steel clamping pieces; The third torque sensor is used to collect the torque value of the screw.

5. The single-phase double-column shunt reactor fault simulation device according to claim 3, characterized in that: Also included is a fourth simulation detection unit for simulating and detecting a winding loosening fault; The fourth simulation detection unit includes: Insulating plates located above and below the windings; A plurality of fixing bolts corresponding to the insulating plates, through which the corresponding insulating plates are pressed against the corresponding windings; The fourth torque sensor is used to collect the torque value of each fixing bolt.

6. A fault simulation method performed based on the fault simulation device according to any one of claims 1 to 5, characterized in that: The invention comprises a loosening simulation method, wherein the loosening simulation method comprises the following steps: Determine the fault simulation type; Determine the target control structure based on the fault simulation type; Starting a torque sensor corresponding to a target control structure; Starting a collector, wherein the collector is a first vibration sensor and a second vibration sensor; The torque of the target control structure is adjusted until it reaches a preset value, and the collector is controlled to collect the corresponding vibration signal. Generate fault simulation data based on the corresponding torque data and the vibration signal and upload the data; When the fault simulation type is a core column loosening fault, the target control structure is a partial or complete tightening of the bolts.

7. The fault simulation method according to claim 6, characterized in that: The fault simulation device includes a clamping device and a clamping bolt, and the clamping bolt is used to compress the corresponding upper iron yoke, side iron column or lower iron yoke. When the fault simulation type is a loose iron yoke lamination fault, the target control structure is all or part of the clamping bolts.

8. The fault simulation method according to claim 7, characterized in that: The clamping device is a U-shaped steel clamping piece; The fault simulation device further comprises screws located at the four corners of the reactor body, the screws being used to tighten the upper iron yoke, the side iron columns and the lower iron yoke through corresponding U-shaped steel clamping pieces; When the fault simulation type is a loose fault between iron yokes, the target control structure is all or part of the screw.

9. The fault simulation method according to claim 7, characterized in that: The fault simulation device further comprises an insulating plate and fixing bolts, wherein the fixing bolts are used to press the corresponding insulating plate against the corresponding winding; When the fault simulation type is a loose fault between iron yokes, the target control structure is all or part of the fixing bolts.

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