Compensation control device for phase modifier

Abstract

The utility model relates to the technical field of phase modifiers, and discloses a phase modifier compensation control device which comprises a phase modifier body, the output end of the phase modifier body is fixedly connected with an output shaft, the output shaft is fixedly provided with a clamping plate, the outer ring of the phase modifier body is provided with a sleeve frame, and the sleeve frame is fixedly connected with the output shaft. A sleeve frame is fixed on the output shaft, an alarm is fixed on the sleeve frame, a brake assembly is arranged in the sleeve frame, a monitoring assembly is mounted on the sleeve frame, the monitoring assembly comprises a rotating disc fixedly mounted on the output shaft, a connecting frame is fixed on the rotating disc, an impact plate is fixed on the bottom surface of the connecting frame, and a mounting block is fixed on the sleeve frame. Compared with a traditional regular shutdown detection mode, the device provided by the utility model has the advantages that continuous monitoring can be carried out in the operation process of equipment, early warning is given out when the radial runout just exceeds a threshold value, the hidden danger of abrasion of the output shaft is found in advance, non-planned shutdown caused by sudden faults is avoided, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of phase modifier, concretely to a phase modifier compensation control device. BACKGROUND

[0002] As a kind of mechanical load-free, phase modifier is an electric motor in special working condition, which can quickly provide dynamic reactive or active compensation to power grid, and plays an important role in the stable operation of power grid.Phase modifier compensation control device is used to control the operating state of phase modifier, to realize the special equipment of reactive power compensation and stability control of power system.It monitors grid parameters and sends control instructions to ensure that phase modifier can efficiently support reactive power and regulate voltage under different working conditions, and it is the key equipment to maintain voltage stability in power system, especially in extra-high voltage and long-distance power transmission network.

[0003] At present, the output shaft detection of phase modifier on the market is mostly obtained by manual measurement or offline detection equipment, which cannot realize continuous monitoring during equipment operation.This hysteresis makes it difficult to discover early wear and tear, and it is often not until the radial runout exceeds the critical value and causes significant vibration or performance fluctuation that it is detected, which may cause sudden failure and lead to unscheduled downtime.Frequent unscheduled downtime not only affects the continuity of power grid reactive power compensation, but also significantly increases maintenance costs, and it is difficult to effectively brake when the radial runout of output shaft exceeds the threshold after failure, which leads to phase modifier failure, further causing regional power grid voltage stability to decline and causing greater range of power supply impact.

[0004] Therefore, we propose a phase modifier compensation control device to solve the problems mentioned above. INVENTION CONTENTS

[0005] The utility model aims at providing a phase modifier compensation control device to solve the problems in the above background technology that existing phase modifier output shaft detection relies on manual measurement or offline equipment, which cannot be continuously monitored during operation, leading to early wear and tear that is difficult to discover in time, and it is often not until the radial runout exceeds the critical value and causes significant abnormality that it is detected, which is easy to cause sudden failure and unscheduled downtime, affecting the continuity of power grid reactive power compensation and significantly increasing maintenance costs, and it is difficult to effectively brake when the radial runout of output shaft exceeds the threshold, which further leads to phase modifier failure, regional power grid voltage stability decline and greater range of power supply impact.

[0006] The utility model provides following technical scheme: a phase modifier compensation control device, including phase modifier body, the output fixedly connected with output shaft is established in phase modifier body, the output shaft is fixed with the clamping plate, the outer ring of phase modifier body is installed with the cover frame, the alarm is fixed on the cover frame, the brake assembly is equipped in the cover frame, the monitoring assembly is installed on the cover frame, the monitoring assembly includes the turntable fixedly installed on the output shaft, the connecting frame is fixed on the turntable, the impact plate is fixed in the connecting frame bottom surface, the mounting block is fixed on the cover frame, the sliding plate is connected in the sliding of the mounting block top surface, the abutment plate is fixed in the sliding plate top surface.

[0007] Preferably, the turntable is provided with a clamping groove matched with the clamping plate.

[0008] Preferably, the mounting block is provided with a cavity, a sheet type pressure sensor is fixed in the cavity, a spring is fixed in the cavity, one end of the spring is fixedly connected with the inner bottom surface of the mounting block, and the other end of the spring is fixedly connected with the sliding plate.

[0009] Preferably, the sheet type pressure sensor is provided with a support fixed on the top surface, a sleeve column is slidably sleeved on the support, the top surface of the sleeve column is fixedly connected with the bottom surface of the sliding plate, and the spring is coaxially arranged with the sleeve column.

[0010] Preferably, the brake assembly includes a groove formed in the cover frame, an electromagnet is installed in the groove, the electromagnet is fixedly connected with the inner wall of the cover frame, a compression spring is installed in the groove, one end of the compression spring is fixedly connected with the inner wall of the cover frame, the other end of the compression spring is fixedly connected with a brake pad, and a permanent magnet is fixed on the brake pad.

[0011] Preferably, the brake pad is attached to the outer wall of the phase modifier body, and the electromagnet and the permanent magnet are arranged in parallel.

[0012] The utility model has the following beneficial effects:

[0013] 1. The device can realize real-time sensing of the radial runout change of the output shaft through the periodic contact of the impact plate and the abutment plate and the accurate capture of the contact pressure by the sheet type pressure sensor, and can quantify the wear degree from the pressure fluctuation amplitude, displacement and other dimensions. Compared with the traditional regular shutdown detection method, the device can continuously monitor the equipment during operation, issue a warning when the radial runout just exceeds the threshold, discover the output shaft wear hidden danger in advance, avoid unplanned shutdown caused by sudden failure, and reduce maintenance cost.

[0014] 2. The device can quickly brake through the brake assembly to timely curb the wear aggravation trend, avoid the bearing overheating and winding insulation damage caused by the eccentric swing of the output shaft, and reduce the economic loss of single failure. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0017] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0018] Figure 4 This is a schematic diagram of the frame and braking assembly structure of this utility model.

[0019] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point B.

[0020] Figure 6 For the present utility model Figure 4 Cross-sectional structural diagram.

[0021] Figure 7 For the present utility model Figure 6 Enlarged structural diagram at point C.

[0022] In the diagram: 1. Phase converter body; 2. Output shaft; 3. Clamping plate; 4. Sleeve; 5. Alarm; 6. Monitoring component; 61. Turntable; 62. Connecting frame; 63. Impact plate; 64. Mounting block; 65. Cavity; 66. Plate pressure sensor; 67. Support column; 68. Sleeve column; 69. Spring; 610. Sliding plate; 611. Abutment plate; 7. Braking component; 71. Groove; 72. Electromagnet; 73. Compression spring; 74. Brake pad; 75. Permanent magnet. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] This embodiment aims to address the problems of existing synchronous condenser output shaft 2 detection lacking real-time capability, difficulty in timely detection of wear hazards, inability to specifically adjust compensation after wear, and easy escalation of faults. Please refer to [link to relevant documentation]. Figure 1 - Figure 3A synchronous condenser compensation control device includes a synchronous condenser body 1, an output shaft 2 fixedly connected to the output end of the synchronous condenser body 1, a clamping plate 3 fixed on the output shaft 2, a sleeve 4 installed on the outer ring of the synchronous condenser body 1, an alarm 5 fixed on the sleeve 4, the alarm 5 is a mechanical buzzer, and the trigger threshold is linked with the signal output of a plate pressure sensor 66.

[0026] The frame 4 is equipped with a monitoring component 6, which includes a turntable 61 fixedly mounted on the output shaft 2. The turntable 61 has a slot for engaging with the card plate 3. A connecting frame 62 is fixed on the turntable 61. An impact plate 63 is fixed on the bottom surface of the connecting frame 62. A mounting block 64 is fixed on the frame 4. A sliding plate 610 is slidably connected to the top surface of the mounting block 64. An abutment plate 611 is fixed on the top surface of the sliding plate 610.

[0027] A cavity 65 is provided inside the mounting block 64. A plate pressure sensor 66 is fixed inside the cavity 65, and a spring 69 is also fixed inside the cavity 65. One end of the spring 69 is fixedly connected to the bottom surface of the mounting block 64, and the other end of the spring 69 is fixedly connected to the sliding plate 610. A support column 67 is fixedly fixed to the top surface of the plate pressure sensor 66. A sleeve column 68 is slidably sleeved on the outside of the support column 67. The sleeve column 68 is sleeved on the outside of the support column 67 to form a sliding guide, ensuring that the pressure is transmitted vertically when force is applied. The top surface of the sleeve column 68 is fixedly connected to the bottom surface of the sliding plate 610. The spring 69 and the sleeve column 68 are coaxially arranged. A gap is left between the inner ring of the spring 69 and the outer wall of the sleeve column 68 to avoid frictional interference during movement.

[0028] In this embodiment: During normal operation, when the synchronous condenser body 1 starts, its output shaft 2 drives the clamping plate 3 and the turntable 61 to rotate synchronously. The connecting frame 62 moves in a circular motion with the turntable 61. The impact plate 63 contacts the abutment plate 611 once every one rotation. At the moment of contact, the sliding plate 610 is compressed downward by the impact force, and the sleeve 68 slides downward along the support column 67 and contacts the plate pressure sensor 66. At this time, the compression of the spring 69 is stable within a certain range, and the pressure value fluctuation range detected by the plate pressure sensor 66 corresponds to the contact pressure under normal working conditions. During use, since the output shaft 2 has no obvious wear, the radial runout will be less than the preset threshold. The contact position deviation between the impact plate 63 and the abutment plate 611 is within the design range, the pressure signal remains stable, the alarm 5 is in standby mode, the synchronous condenser excitation system operates according to the rated parameters, and the reactive power output is stable.

[0029] When the output shaft 2 experiences slight wear due to long-term operation, and the radial runout exceeds the specified range, the turntable 61 oscillates eccentrically with the output shaft 2. This causes the contact position between the impact plate 63 and the abutment plate 611 to shift, increasing the impact force at the moment of contact. At this time, the downward displacement of the sliding plate 610 increases, and the compression of the spring 69 increases, causing the pressure value detected by the plate pressure sensor 66 to rise. If the fluctuation exceeds the preset threshold, the plate pressure sensor 66 transmits the signal to the control unit, triggering the excitation adjustment module to fine-tune the brush position and compensate for the reactive power output deviation by increasing the excitation current. If the wear is significant, the contact pressure between the impact plate 63 and the abutment plate 611 increases sharply, and the pressure value exceeds the normal range. The plate pressure sensor 66 outputs an overload signal, the alarm 5 sounds continuously, and the control unit triggers the protection mechanism. Through mechanical interlocking, the output power of the synchronous condenser is limited to the rated value, and a shutdown and maintenance signal is sent to the background system to prevent the fault from escalating.

[0030] Example 2:

[0031] This embodiment aims to address the problems of the tunable camera braking system easily interfering with the main unit's operation during normal operation, exhibiting delayed response and poor braking effect during malfunctions. This embodiment is an improvement upon Embodiment 1. For details, please refer to [link to Embodiment 1]. Figure 1 and Figure 4 - Figure 7 A synchronous condenser compensation control device includes a synchronous condenser body 1, a sleeve 4 mounted on the outer ring of the synchronous condenser body 1, a braking assembly 7 provided inside the sleeve 4, the braking assembly 7 including a groove 71 opened in the sleeve 4, an electromagnet 72 installed in the groove 71, the electromagnet 72 being fixedly connected to the inner wall of the sleeve 4, a compression spring 73 installed in the groove 71, one end of the compression spring 73 being fixedly connected to the inner wall of the sleeve 4, and a brake pad 74 being fixedly connected to the other end of the compression spring 73, the brake pad 74 being made of composite friction material, a permanent magnet 75 being fixed on the brake pad 74, the brake pad 74 being in contact with the outer wall of the synchronous condenser body 1, and the electromagnet 72 and the permanent magnet 75 being arranged in parallel.

[0032] In this embodiment: When the synchronous condenser is operating normally, the electromagnet 72 is in a power-off sleep state, and no excitation magnetic field is generated. At this time, the compression spring 73 remains in a naturally contracted state, and the preload force steadily pulls the brake pad 74 away from the synchronous condenser body 1, so that the brake pad 74 maintains a uniform gap with the outer wall of the synchronous condenser. The entire braking assembly 7 is in a low-power standby mode and does not participate in the dynamic control process of reactive power compensation of the synchronous condenser. It only relies on the rigid frame structure of the sleeve 4 to provide stable support, ensuring that the braking system and the main unit do not interfere with each other.

[0033] When the output shaft 2 of the synchronous condenser experiences radial runout exceeding the threshold due to severe wear, the pressure monitoring system detects the characteristic fluctuation signal and transmits it to the control unit, triggering an emergency braking procedure. The control unit immediately outputs the rated voltage to the electromagnet 72. The coil generates a strong magnetic field instantly upon energization, forming a repulsive magnetic force with the permanent magnet 75 on the back of the brake pad 74. This repulsive force overcomes the contraction force of the compression spring 73, causing the spring 69 to be forcibly stretched and driving the brake pad 74 to move rapidly. This allows the brake pad 74 to quickly move from its initial position to a tight fit with the outer wall of the synchronous condenser body 1. The contact pressure between the arc-shaped friction surface of the brake pad 74 and the outer wall of the main unit increases linearly with the magnetic field strength, and the resulting frictional torque increases synchronously. This achieves graded speed regulation braking of the synchronous condenser, promptly curbing the trend of accelerated wear, providing maintenance personnel with a safe handling window, and avoiding the chain reaction caused by the expansion of the fault.

[0034] After the fault is cleared, the control unit automatically cuts off the power supply to the electromagnet 72, and the magnetic field immediately dissipates. Under the action of elastic potential energy, the spring 73 drives the brake pad 74 to reset along the original path, re-establishing a standard gap with the outer wall of the synchronous condenser. During the reset process, the precise cooperation between the guide slider and the slide rail ensures that the brake pad 74 returns to the initial standby position, and the entire component returns to a low-power ready-to-trigger state, preparing for the next operating condition response.

[0035] This workflow achieves rapid braking in fault conditions and seamless standby switching in normal conditions through the precise coordination of electromagnetic repulsion and mechanical elasticity, ensuring both response speed in emergency situations and structural stability during normal operation.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A camera condenser compensation control device, comprising a camera condenser body (1), characterized in that: The output end of the camera body (1) is fixedly connected to an output shaft (2), a clamping plate (3) is fixed on the output shaft (2), a sleeve (4) is installed on the outer ring of the camera body (1), an alarm (5) is fixed on the sleeve (4), a braking component (7) is provided inside the sleeve (4), a monitoring component (6) is installed on the sleeve (4), the monitoring component (6) includes a turntable (61) fixedly installed on the output shaft (2), a connecting frame (62) is fixed on the turntable (61), an impact plate (63) is fixed on the bottom surface of the connecting frame (62), an installation block (64) is fixed on the sleeve (4), a sliding plate (610) is slidably connected to the top surface of the installation block (64), and an abutment plate (611) is fixed on the top surface of the sliding plate (610).

2. The synchronous condenser compensation control device according to claim 1, characterized in that: The turntable (61) is provided with a slot for engaging with the card plate (3).

3. The synchronous condenser compensation control device according to claim 2, characterized in that: The mounting block (64) has a cavity (65) inside, a plate pressure sensor (66) is fixed inside the cavity (65), and a spring (69) is fixed inside the cavity (65). One end of the spring (69) is fixedly connected to the bottom surface inside the mounting block (64), and the other end of the spring (69) is fixedly connected to the sliding plate (610).

4. The synchronous condenser compensation control device according to claim 3, characterized in that: The top surface of the plate pressure sensor (66) is fixed with a support column (67), and a sleeve column (68) is slidably sleeved on the outside of the support column (67). The top surface of the sleeve column (68) is fixedly connected to the bottom surface of the sliding plate (610), and the spring (69) is coaxially arranged with the sleeve column (68).

5. The synchronous condenser compensation control device according to claim 1, characterized in that: The braking assembly (7) includes a groove (71) formed in the sleeve (4), an electromagnet (72) is installed in the groove (71), the electromagnet (72) is fixedly connected to the inner wall of the sleeve (4), a compression spring (73) is installed in the groove (71), one end of the compression spring (73) is fixedly connected to the inner wall of the sleeve (4), and the other end of the compression spring (73) is fixedly connected to a brake pad (74), and a permanent magnet (75) is fixed on the brake pad (74).

6. The synchronous condenser compensation control device according to claim 5, characterized in that: The brake pad (74) is attached to the outer wall of the camera body (1), and the electromagnet (72) and the permanent magnet (75) are arranged in parallel.

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