Electric control cabinet of phase modifier oil station
By combining power sag and overheat protection modules, the problem of equipment damage to synchronous condenser oil stations during power grid fluctuations is solved, achieving safe protection and efficient heat dissipation of the equipment and extending its service life.
Patent Information
- Application Number
- CN202520427525.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-12
AI Technical Summary
In existing technologies, synchronous condenser oil stations are prone to voltage fluctuations or frequency changes when the grid voltage fluctuates, which can damage the equipment and reduce its service life.
The system employs a current flicker detection module, a control module, and a circuit breaker module. The main power supply output current is detected, the control module determines the current flicker phenomenon and cuts off the circuit, and the system is combined with a temperature detection module and an overheat protection board to achieve current flicker and overheat protection for the equipment.
It effectively reduces the chance of equipment damage in the synchronous condenser oil station, extends its service life, and improves heat dissipation efficiency.
Smart Images
Figure CN223912116U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of electric control cabinets, in particular to an electric control cabinet for a phase modifier oil station. BACKGROUND
[0002] With the continuous development of social economy and the increasing improvement of scientific and technological level, the industry in China is also booming. The phase modifier oil station is a device for reactive power compensation of the power system, is a synchronous motor in a special operating state, can maintain voltage stability by providing or absorbing reactive power to the power system, improves the stability of the power system, and improves the power supply quality.
[0003] For the related technology in the above, in the prior art, an ordinary electrical control cabinet is usually used to control the phase modifier oil station. When the power grid electrically connected with the phase modifier oil station has voltage fluctuation, frequency change or transient power failure, the power grid is prone to have a flicker phenomenon, thereby increasing the probability that the electrical equipment in the phase modifier oil station is damaged due to the flicker phenomenon, and thereby reducing the service life of the phase modifier oil station. Therefore, there is room for improvement. CONTENT OF THE UTILITY MODEL
[0004] In order to reduce the probability that the electrical equipment in the phase modifier oil station is damaged due to the flicker phenomenon, the application provides an electric control cabinet for a phase modifier oil station.
[0005] The application provides an electric control cabinet for a phase modifier oil station, which adopts the following technical scheme:
[0006] The electric control cabinet for the phase modifier oil station comprises a cabinet body and a main power supply. The main power supply is used to supply power to the phase modifier oil station. The electric control cabinet further comprises a flicker detection module, a control module and a cut-off module. The flicker detection module is used to detect the size of the output current of the main power supply to the phase modifier oil station. The control module is used to control whether the cut-off module cuts off the power supply of the main power supply to the phase modifier oil station based on the data detected by the flicker detection module.
[0007] Compared with the prior art, in which only an ordinary electrical control cabinet is used to control the phase modifier oil station, so that the electrical equipment in the phase modifier oil station is prone to be damaged when the flicker phenomenon occurs, the flicker detection module, the control module and the cut-off module are arranged in the application. The flicker detection module can detect the size of the output current of the main power supply to the phase modifier oil station. The control module can judge whether the flicker phenomenon occurs based on the size of the current detected by the flicker detection module. When the detected current is too large, it is judged that the flicker phenomenon occurs. Then the control module controls the cut-off module to cut off the circuit between the main power supply and the phase modifier oil station. Thus, the flicker protection of the phase modifier oil station is realized, the probability that the equipment and the motor in the phase modifier oil station are damaged is reduced, and the service life of the phase modifier oil station is ensured.
[0008] As preferred, a side wall of the cabinet body is further provided with an overheating protection slot, the overheating protection slot is communicated with the chamber in the cabinet body, the cabinet body is further provided with an overheating protection plate, the overheating protection plate is used for shielding the overheating protection slot, one end of the overheating protection plate is rotatably connected with the cabinet body, the cabinet body is further provided with a driving motor and a driving assembly, the driving motor drives the overheating protection plate to rotate through the driving assembly.
[0009] By adopting the above technical scheme, the overheating protection plate is provided, so that when the temperature in the chamber of the cabinet body is too high, the driving motor can drive the overheating protection plate to rotate through the driving assembly, so as to completely open the overheating protection slot, so that the hot air in the chamber of the cabinet body can be discharged through the overheating protection slot, so that the electronic devices in the cabinet body can be self-cooled, thereby reducing the probability of damage to the electronic devices in the cabinet body due to the high temperature in the chamber of the cabinet body.
[0010] As preferred, a side wall of the cabinet body is further provided with an overheating protection slot, the overheating protection slot is communicated with the chamber in the cabinet body, the cabinet body is further provided with an overheating protection plate, the overheating protection plate is used for shielding the overheating protection slot, one end of the overheating protection plate is rotatably connected with the cabinet body, the cabinet body is further provided with a driving motor and a driving assembly, the driving motor drives the overheating protection plate to rotate through the driving assembly.
[0011] By adopting the above technical scheme, the overheating protection plate is provided, so that when the temperature in the chamber of the cabinet body is too high, the driving motor can drive the overheating protection plate to rotate through the driving assembly, so as to completely open the overheating protection slot, so that the hot air in the chamber of the cabinet body can be discharged through the overheating protection slot, so that the electronic devices in the cabinet body can be self-cooled, thereby reducing the probability of damage to the electronic devices in the cabinet body due to the high temperature in the chamber of the cabinet body.
[0012] As preferred, the rotating mechanism comprises an electric push rod and a sliding frame, the sliding frame is slidably connected with the overheating protection plate, the electric push rod is used for driving the sliding frame to slide, a side wall of the sliding frame is further provided with a plurality of driving slots, the driving slots are one-to-one corresponding to the heat dissipation plates, each heat dissipation plate extends an extension part, each extension part extends into the corresponding driving slot and abuts against the inner side wall of the corresponding driving slot.
[0013] By adopting the above technical scheme, the rotating mechanism is specifically provided, so that the electric push rod can drive the sliding frame to slide, so that in the sliding process, the inner side wall of each driving slot can abut against the extension part on the corresponding heat dissipation plate, so that the inner wall of the driving slot pushes the extension part to displace, thereby making each heat dissipation plate rotate, realizing the driving of each heat dissipation plate, and effectively facilitating the operation of the relevant personnel.
[0014] As preferred, a temperature detection module is further included for detecting the temperature in the cabinet cavity, and the control module is configured to control the opening and closing of the electric push rod based on the data detected by the temperature detection module.
[0015] By adopting the above technical solution, the temperature detection module can detect the temperature in the cabinet cavity, so that when the temperature in the cabinet cavity is high, the control module can control the electric push rod to drive the sliding frame to slide, and then each heat dissipation plate rotates, so that the heat dissipation groove is opened for heat dissipation, so that the electronic devices in the cabinet can dissipate heat by themselves, thereby improving the heat dissipation efficiency.
[0016] As preferred, the driving motor is controlled by the control module, and the control module is configured to control the opening and closing of the driving motor based on the data detected by the temperature detection module.
[0017] By adopting the above technical solution, when the temperature sensor detects that the temperature in the cabinet cavity is too high, the control module can control the driving motor to work, so that the overheat protection groove can be completely opened, thereby increasing the heat dissipation efficiency and reducing the probability of high temperature of electronic devices.
[0018] As preferred, the power swing detection module includes a plurality of power swing detection units, each of which is configured to detect the output current of the main power supply to the camera station, and the control module is configured to control the cutting module to cut off the power supply of the main power supply to the camera station based on the data detected by each power swing detection unit.
[0019] By adopting the above technical solution, each power swing detection unit can detect the output current of the main power supply to the camera station, so as to realize the redundant setting of the detection point, so that even if a power swing detection unit is damaged, other power swing detection units can still continue to detect, thereby ensuring the detection effect of the power swing detection module and the power swing protection effect of the camera station.
[0020] As preferred, an external DC power supply is further included for supplying power to the power swing detection module, the control module and the cutting module.
[0021] By adopting the technical scheme, the external DC power supply can directly supply power to the fluctuation detection module, the control module and the cutting-off module, thereby reducing the probability that the fluctuation detection module, the control module and the cutting-off module stop working when the main power supply of the electric control cabinet fails, realizing fault isolation of the fluctuation detection module, the control module and the cutting-off module, and effectively ensuring stable operation of the fluctuation detection module, the control module and the cutting-off module.
[0022] To sum up, the present application includes at least one of the following beneficial technical effects:
[0023] The setting of the fluctuation detection module, the control module and the cutting-off module enables the fluctuation detection module to detect the size of the output current of the main power supply to the phase modifier oil station, so that the control module can determine whether the fluctuation phenomenon occurs based on the size of the current detected by the fluctuation detection module, and when the detected current is too large, determine that the fluctuation phenomenon occurs, and then control the cutting-off module to cut off the circuit between the main power supply and the phase modifier oil station, thereby realizing fluctuation protection of the phase modifier oil station, reducing the probability of damage to equipment and motors in the phase modifier oil station, and thereby ensuring the service life of the phase modifier oil station.
[0024] The setting of the temperature detection module enables the temperature detection module to detect the temperature of the inner chamber of the cabinet, so that when the temperature of the inner chamber of the cabinet is high, the control module can control the electric push rod to drive the sliding frame to slide, thereby causing each heat dissipation plate to rotate, causing the heat dissipation grooves to open for heat dissipation, enabling the electronic devices in the cabinet to dissipate heat by themselves, thereby improving the heat dissipation efficiency.
[0025] The setting of the plurality of fluctuation detection units enables each fluctuation detection unit to detect the size of the output current of the main power supply to the phase modifier oil station, thereby realizing redundant setting of the detection points, so that even if a fluctuation detection unit fails or is damaged, other fluctuation detection units can still continue to detect, thereby ensuring the detection effect of the fluctuation detection module, and thereby ensuring the fluctuation protection effect of the phase modifier oil station. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 is a schematic view of the phase modifier oil station electric control cabinet in the embodiment of the present application.
[0027] Figure 2 is a structural block diagram of the control module electrically connected in the embodiment of the present application.
[0028] Figure 3 is a structural schematic view of the driving mechanism in the embodiment of the present application.
[0029] Figure 4 is a structural schematic view of the extension part in the embodiment of the present application.
[0030] Explanation of reference numerals in the attached drawings: 1. Cabinet; 11. Overheat protection plate; 111. Heat dissipation slot; 12. Heat dissipation plate; 121. Extension; 2. Main power supply; 3. Voltage fluctuation detection module; 31. Voltage fluctuation detection unit; 4. Control module; 5. Cut-off module; 6. External DC power supply; 7. Overheat protection slot; 8. Drive mechanism; 81. Drive motor; 82. Drive assembly; 821. Drive frame; 822. Connecting frame; 9. Rotation mechanism; 91. Electric push rod; 92. Sliding frame; 921. Drive slot; 10. Temperature detection module. Detailed Implementation
[0031] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.
[0032] This application discloses an electrical control cabinet for a synchronous condenser gas station. (Refer to...) Figure 1 and Figure 2 The synchronous condenser station electrical control cabinet includes a cabinet 1, a main power supply 2, a current fluctuation detection module 3, a control module 4, and a disconnection module 5. The main power supply 2 is used to supply power to the synchronous condenser station. The current fluctuation detection module 3 is used to detect the magnitude of the output current of the main power supply 2 to the synchronous condenser station. The control module 4 is used to control the disconnection module 5 to disconnect the main power supply 2 from the synchronous condenser station based on the data detected by the current fluctuation detection module 3.
[0033] In this embodiment, the main power supply 2 is set to a 220V AC power supply, which is used to supply power to the synchronous condenser oil station. The synchronous condenser oil station electrical control cabinet also includes an external DC power supply 6. In this embodiment, the external DC unit has two outputs, both of which are set to external DC 24V power supplies.
[0034] Reference Figure 2 The current fluctuation detection module 3 includes several current fluctuation detection units 31. In this embodiment, the number of current fluctuation detection units 31 is set to two or more, thereby achieving dual or multiple redundancy for the measurement points. Each current fluctuation detection unit 31 is configured as a current transformer, the control module 4 is configured as a PLC controller, and the cut-off module 5 is configured as a relay. The relay and each current transformer are electrically connected to the PLC controller.
[0035] One external DC24V power supply is used to power the PLC controller and relays, and the other external DC24V power supply is used to power each current transformer, so as to achieve reliable power supply to the PLC controller and relays, and at the same time achieve independent power supply and fault isolation for the current transformers, ensuring the normal operation of the PLC controller, relays and current transformers.
[0036] Each of the current transformers is used to convert the high voltage output current of the main power supply 2 to the current in the low voltage circuit of the current transformer, so as to detect the size of the fluctuating current converted into the low voltage circuit current, and feed back the detected current size value to the PLC controller. The PLC controller has a preset value stored in advance, which is the fluctuating current size detected by the current transformer when the fluctuating phenomenon occurs and just causes damage to the motor or electrical equipment in the phase modifier oil station.
[0037] The relay is used to control whether the circuit between the main power supply 2 and the phase modifier oil station is connected or not. The PLC controller is used to receive the current size value fed back by each current sensor, and is used to compare the detected size value with the preset value. When the detected size value is greater than or equal to the preset value, the PLC controller controls the relay to work, so that the relay cuts off the circuit between the main power supply 2 and the phase modifier oil station, thereby protecting the phase modifier oil station from fluctuation.
[0038] Referring to Figure 1 and Figure 3 , the side wall of the cabinet 1 is also provided with an overheating protection slot 7 which is in communication with the cavity in the cabinet 1. The cabinet 1 is also provided with an overheating protection plate 11 which is used to shield the overheating protection slot 7. The top end of each overheating protection plate 11 is rotatably connected to the cabinet 1 by a pin shaft.
[0039] Referring to Figure 1 and Figure 3 , the cabinet 1 is also provided with a driving mechanism 8 which includes a driving motor 81 and a driving assembly 82. The body of the driving motor 81 is fixedly installed on the inner side wall of the cabinet 1, and the extension direction of the output shaft of the driving motor 81 is the length direction of the cabinet 1. The driving assembly 82 includes a driving frame 821 and a connecting frame 822. One end of the driving frame 821 is fixedly sleeved on the output shaft of the driving motor 81 and is rotatably connected to the cabinet 1 by a support, so that the driving motor 81 can drive the driving frame 821 to rotate.
[0040] Referring to Figure 1 and Figure 3 , the other end of the driving frame 821 and one end of the connecting frame 822 are rotatably connected by a pin shaft, and the other end of the connecting frame 822 and the overheating protection plate 11 are rotatably connected by a pin shaft, so that when the driving motor 81 drives one end of the driving frame 821 to rotate, the other end of the driving frame 821 can drive the overheating protection plate 11 to rotate through the connecting frame 822, so that the overheating protection plate 11 opens the overheating protection slot 7.
[0041] Referring to Figure 1 and Figure 3The side wall of the overheating protection plate 11 is also provided with a plurality of heat dissipation grooves 111 penetrating through the side wall, and the plurality of heat dissipation grooves 111 are distributed along the height direction of the overheating protection plate 11. Each heat dissipation groove 111 is in communication with the cavity in the cabinet 1 through the overheating protection groove 7. Each heat dissipation groove 111 is provided with a heat dissipation plate 12, and the middle part of each heat dissipation plate 12 along the width direction of the heat dissipation plate 12 is rotationally connected to the overheating protection plate 11 through a pin shaft.
[0042] With reference to Figure 3 The overheating protection plate 11 is also provided with a rotating mechanism 9 located in the cabinet 1. The rotating mechanism 9 comprises an electric push rod 91 and a sliding frame 92. The electric push rod 91 is fixedly installed on the overheating protection plate 11, and the piston rod of the electric push rod 91 extends along the height direction of the overheating protection plate 11 and is fixedly connected to the sliding frame 92 through a bolt. The sliding frame 92 is slidably connected to the overheating protection plate 11 through a sliding rail, and the sliding direction is the height direction of the overheating protection plate 11.
[0043] With reference to Figure 3 and Figure 4 The side wall of the sliding frame 92 is also provided with a plurality of driving grooves 921 corresponding to the heat dissipation plates 12. The plurality of driving grooves 921 are distributed along the height direction of the sliding frame 92. Each heat dissipation plate 12 extends an extension part 121 on one side close to the sliding frame 92, and the extension part 121 is integrally formed with the heat dissipation plate 12. In the embodiment, the extension part 121 is in a cylindrical shape, one end of each extension part 121 extends into the corresponding driving groove 921, and the side wall abuts against the inner side wall of the driving groove 921, so that the inner side wall of the driving groove 921 can push the extension part 121 to displace by abutting against the side wall of the extension part 121, thereby causing the heat dissipation plate 12 to rotate.
[0044] With reference to Figure 1 , Figure 2 and Figure 3 In the initial state, the overheating protection plate 11 is in a vertical state, and at this time each heat dissipation plate 12 closes the driving groove 921. When the piston rod of the electric push rod 91 drives the sliding frame 92 to move downward, the inner side wall of each driving groove 921 on the sliding frame 92 abuts against the corresponding extension part 121, thereby pushing the corresponding extension part 121 to displace downward, and further causing the heat dissipation plate 12 to rotate. In this process, the extension part 121 slides relative to the inner wall of the driving groove 921, thereby adapting to the rotation of the heat dissipation plate 12.
[0045] With reference to Figure 1 , Figure 2 and Figure 3The phase modifier oil station electric control cabinet further comprises a temperature detection module 10. In the embodiment, the temperature detection module 10 is a temperature sensor which is fixedly installed in the cabinet body 1 and is used for detecting the temperature in the cabinet body 1. The temperature sensor, the driving motor 81 and the electric push rod 91 are electrically connected to the PLC controller.
[0046] With reference to Figure 1 and Figure 3 , the PLC controller pre-stores a preset value which is the maximum temperature value in the cavity of the cabinet body 1 which does not affect the normal work of the electronic devices. The PLC controller is used for comparing the temperature value detected by the temperature sensor with the preset value, and when the detected temperature value is less than the preset value, the electric push rod 91 is controlled to be started, so that the sliding frame 92 drives each heat dissipation plate 12 to rotate, and then the heat dissipation groove 111 is opened to dissipate heat.
[0047] With reference to Figure 1 and Figure 3 , when the detected temperature value is equal to or greater than the preset value, the PLC controller controls the driving motor 81 to work, so that the driving motor 81 drives the overheat protection plate 11 to rotate through the driving assembly 82, and then the overheat protection groove 7 is fully opened.
[0048] The implementation principle of the phase modifier oil station electric control cabinet in the embodiment is as follows: in use, each current transformer is used for converting the high-voltage output current of the main power supply 2 to the phase modifier oil station into the current in the low-voltage line of the current transformer, so as to detect the fluctuation current of the converted low-voltage line current. The PLC controller is used for receiving the current size value fed back by each current sensor, and is used for comparing the detected size value with the preset value, so that when the detected current size value is greater than or equal to the preset value, the PLC controller can control the relay to work, so that the relay cuts off the circuit between the main power supply 2 and the phase modifier oil station, thereby protecting the phase modifier oil station from fluctuation.
[0049] The above are the preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.
Claims
1. A phase modifier oil station electric control cabinet, comprising a cabinet body (1) and a main power supply (2), the main power supply (2) is used for power supply to the phase modifier oil station, characterized in that: It also includes a power swing detection module (3), a control module (4) and a cutting module (5), the power swing detection module (3) is used for detecting the size of the output current of the main power supply (2) to the phase modifier oil station, the control module (4) is used for controlling whether the cutting module (5) cuts off the power supply of the main power supply (2) to the phase modifier oil station based on the data detected by the power swing detection module (3).
2. The electric control cabinet of the phase modifier oil station according to claim 1, characterized in that: The side wall of the cabinet body (1) is also provided with an overheating protection slot (7) which is in communication with the cavity in the cabinet body (1), and the cabinet body (1) is also provided with an overheating protection plate (11) which is used for shielding the overheating protection slot (7), one end of the overheating protection plate (11) is rotatably connected with the cabinet body (1), and the cabinet body (1) is also provided with a driving motor (81) and a driving assembly (82), the driving motor (81) drives the overheating protection plate (11) to rotate through the driving assembly (82).
3. The electric control cabinet of the phase modifier oil station according to claim 2, characterized in that: A plurality of heat dissipation grooves (111) are also formed through the overheating protection plate (11), and a plurality of heat dissipation plates (12) are arranged on the overheating protection plate (11), the heat dissipation plates (12) are arranged one by one corresponding to the heat dissipation grooves (111) and are used for shielding the corresponding heat dissipation grooves (111), each heat dissipation plate (12) is rotatably connected with the overheating protection plate (11), and a rotating mechanism (9) is arranged on the overheating protection plate (11), the rotating mechanism (9) is used for driving each heat dissipation plate (12) to rotate.
4. The electric control cabinet of the phase modifier oil station according to claim 3, characterized in that: The rotating mechanism (9) includes an electric push rod (91) and a sliding frame (92), the sliding frame (92) is slidably connected with the overheating protection plate (11), and the electric push rod (91) is used for driving the sliding frame (92) to slide, a plurality of driving grooves (921) are also formed in the side wall of the sliding frame (92), the driving grooves (921) are arranged one by one corresponding to the heat dissipation plates (12), each heat dissipation plate (12) extends an extension part (121), each extension part (121) extends into the corresponding driving groove (921) and abuts against the inner side wall of the corresponding driving groove (921).
5. A phase modulator oil station electric control cabinet according to claim 4, characterized in that: It also includes a temperature detection module (10), the temperature detection module (10) is used for detecting the temperature in the cavity of the cabinet body (1), and the control module (4) is used for controlling the opening and closing of the electric push rod (91) based on the data detected by the temperature detection module (10).
6. A phase modulator oil station electric control cabinet according to claim 5, characterized in that: The driving motor (81) is controlled by the control module (4), and the control module (4) is used for controlling the opening and closing of the driving motor (81) based on the data detected by the temperature detection module (10).
7. The electric cabinet for regulating the oil station of a phase modifier according to claim 1, characterized in that: The power swing detection module (3) includes a plurality of power swing detection units (31), each power swing detection unit (31) is used for detecting the size of the output current of the main power supply (2) to the phase modifier oil station, and the control module (4) is used for controlling whether the cutting module (5) cuts off the power supply of the main power supply (2) to the phase modifier oil station based on the data detected by each power swing detection unit (31).
8. The electric cabinet for regulating the oil station of a phase modifier according to claim 1, characterized in that: Also included is an external DC power supply (6) for powering the flicker detection module (3), the control module (4) and the cut-off module (5).