Quick switch control device
By employing a dual-control chip design and an IGBT fast control module, combined with domestically produced chips and a pluggable structure, the problems of high cost, insufficient real-time performance, and slow speed in high-voltage switch control devices have been solved, achieving efficient and fast switch control.
Patent Information
- Application Number
- CN202520238157.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-02-14
AI Technical Summary
Existing high-voltage switch control devices are costly and consume a lot of power. When using low-end control chips, they cannot guarantee real-time performance and speed, and their complex structure makes them inconvenient to maintain.
It adopts a dual control chip design and an independent IGBT fast control module, using the domestically produced GD32H759IMT6 chip, combined with a pluggable structure and optocoupler isolation, to achieve fast control of the high-voltage switch.
It reduced costs, ensured real-time and rapid control, simplified the structure, and facilitated maintenance and production.
Smart Images
Figure CN223611860U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of relay protection, concretely is a quick switch control device. BACKGROUND
[0002] Relay protection is an important measure for detecting the fault or abnormal condition occurred in the power system, thereby sending an alarm signal, or directly isolating and cutting off the fault part. The basic task of relay protection is: when the power system has a fault or abnormal condition, automatically cut off the fault equipment from the system in the shortest time and the smallest area, or send a signal to eliminate the abnormality by the on-duty personnel.
[0003] At present, most of the high-voltage switch control devices use high-performance chips imported from abroad to realize the functions and schemes, which have high cost and high power consumption. The use of low-end control chips cannot guarantee the real-time and rapidity of control, and the structure adopts the form of bare board, which is complex and easy to make mistakes in external wiring, and is not convenient to maintain. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a quick switch control device to solve the problems in the background art.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] A quick switch control device, comprising two chassis side plates, a chassis rear plate, the two chassis side plates and the chassis rear plate are fixedly connected by screws to form a chassis shell, a bottom communication plate is installed in front of the chassis rear plate, a PCB card rail slot is inserted into the bottom communication plate, a panel card rail is arranged on the chassis side plate, a control panel is installed on the panel card rail, the control panel is connected with the bottom communication plate in a pluggable manner, a first control chip, an IGBT rapid control module, an analog signal acquisition module and an input signal detection module are arranged on the control panel, the first control chip is connected with the analog signal acquisition module through a UART interface, the analog signal acquisition module is connected with the IGBT rapid control module through a GPIO interface, the input signal detection module is connected through an optical coupler, the analog signal acquisition module comprises an analog signal conditioning circuit and a second control chip, and the analog signal conditioning circuit and the second control chip are connected through an analog-to-digital converter.
[0007] In a possible implementation, the first control chip is connected with a CAN communication module through a GMII interface.
[0008] In a possible implementation, a power management module is arranged between the first control chip and the analog signal acquisition module, and the power management module is configured to supply power to the first control chip and the analog signal acquisition module.
[0009] In a possible implementation, the first control chip or the second control chip is a GD32H759IMT6 master control chip.
[0010] In a possible implementation, the analog signal conditioning circuit comprises a TR3121-1CH mutual inductor, and the TR3121-1CH mutual inductor is connected in series with two amplifiers in sequence.
[0011] In a possible implementation, the IGBT fast control module comprises an insulated gate bipolar transistor Q1, an insulated gate bipolar transistor Q3, an insulated gate bipolar transistor Q5, an insulated gate bipolar transistor Q9, an insulated gate bipolar transistor Q12 and an insulated gate bipolar transistor Q14, the insulated gate bipolar transistor Q1 is connected in parallel with the insulated gate bipolar transistor Q9, the insulated gate bipolar transistor Q9 is connected in series with the insulated gate bipolar transistor Q5, and the insulated gate bipolar transistor Q1 is connected in series with the insulated gate bipolar transistor Q3; and the insulated gate bipolar transistor Q12 is connected in parallel with the insulated gate bipolar transistor Q14.
[0012] In a possible implementation, the side plate of the cabinet is provided with a mounting lug at an end away from the rear plate of the cabinet, and the mounting lug is provided with a handle.
[0013] Compared with the prior art, the utility model has the following advantages:
[0014] The design architecture of the double control chips and the independent IGBT fast control module are effectively matched, so that the real-time performance and the rapidity of control are ensured. Meanwhile, the control chip with general performance can be used to realize the rapid action of the 10KV high-voltage switch, so that the cost is saved, and the domestication is beneficial. In addition, the plug-in design structure is simple and easy to maintain and produce. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a whole structure schematic view of the utility model;
[0016] Figure 2 It is a whole structure explosion schematic view of the utility model;
[0017] Figure 3 It is a structure frame view of the control panel of the utility model;
[0018] Figure 4 It is a circuit view of the analog signal conditioning circuit of the utility model;
[0019] Figure 5 The utility model discloses an IGBT fast control module's circuit diagram. DETAILED DESCRIPTION
[0020] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.
[0021] As Figures 1-3 A kind of fast switch control device, including two chassis side plates 2, chassis back plate 3, two the chassis side plate 2 and the chassis back plate 3 are fixedly connected by screw and form chassis shell, bottom communication plate 4 is installed in the front of the chassis back plate 3, PCB card rail slot 5 is inserted in the bottom communication plate 4, panel card rail 8 is equipped on the chassis side plate 2, installation lug 6 is equipped on the end of the chassis side plate 2 away from the chassis back plate 3, handle 7 is equipped on the installation lug 6.
[0022] Control panel 1 is installed on the panel card rail 8, the control panel 1 is connected with the bottom communication plate 4 in pluggable mode, first control chip 11, IGBT fast control module 13, analog signal acquisition module 12 and input signal detection module 14 are equipped on the control panel 1, the first control chip 11 is connected with the analog signal acquisition module 12 by UART interface, the analog signal acquisition module 12 is connected with the IGBT fast control module 13 by GPIO interface, the input signal detection module 14 is connected by photo-coupler 15, the analog signal acquisition module 12 includes analog signal conditioning circuit 123 and second control chip 121, the analog signal conditioning circuit 123 and second control chip are connected by analog-digital converter 122.
[0023] The chip of the utility model is with the localization CORTEX-M7 chip GD32H759IMT6 as communication, the core of acquisition calculation processing. Bottom communication plate 4 is as back plate and is wired to PCB board ground form, and each module is interacted. Because the design framework of double control chip is adopted, the first control chip 11 is responsible for peripheral communication interaction, and the second control chip is responsible for acquisition calculation and function processing. Each functional module is connected in the form of hot plug, and it is convenient and reliable. At the same time, the demand for control chip performance can be reduced, and the control of relay protection can be completed by using the localization low-performance chip. First control chip 11 or second control chip 121 can be expanded storage, network interface, clock and other interface chips through SPI, QSPI, GMII, UART, IIC interface, and the information interaction rate between double mcus is as high as 10MBit through high-speed serial port.
[0024] The first control chip 11 is connected with the CAN communication module 17 through a GMII interface to perform external communication.
[0025] The input signal module inputs through optical coupling isolation, that is, an optical coupler 15 is arranged between the input signal module and the analog signal acquisition module 12 to perform optical coupling isolation, so that the electromagnetic interference of external input signals on internal circuits is sufficiently isolated. The output side of the optical coupler 15 can latch the input logic signals through a 74LVC4245 chip and input the logic signals to the external bus interface of the second control chip 121.
[0026] Further, the first control chip 11 and the analog signal acquisition module 12 are provided with a power management module 16, and the power management module 16 is used for supplying power to the first control chip 11 and the analog signal acquisition module 12.
[0027] As shown in Figure 4 The analog signal conditioning circuit 123 includes a TR3121-1CH mutual inductor, and the TR3121-1CH mutual inductor is connected with two amplifiers in sequence. Through twice amplification by the two amplifiers, the analog signal can be effectively strengthened.
[0028] The second control chip 121 of the analog signal acquisition module 12 is the same type chip as the first control chip 11, which is a 16-channel double-channel synchronous acquisition chip, can acquire 16 analog signals, and the input signal range is 5V and 10V adjustable. Through the foregoing TR3121-1CH mutual inductor, the external input AC signal source can be effectively acquired.
[0029] As shown in Figure 5As shown in the utility model, the IGBT fast control module 13 includes an insulated gate bipolar transistor Q1, an insulated gate bipolar transistor Q3, an insulated gate bipolar transistor Q5, an insulated gate bipolar transistor Q9, an insulated gate bipolar transistor Q12 and an insulated gate bipolar transistor Q14, the insulated gate bipolar transistor Q1 is connected in parallel with the insulated gate bipolar transistor Q9, the insulated gate bipolar transistor Q9 is connected in series with the insulated gate bipolar transistor Q5, the insulated gate bipolar transistor Q1 is connected in series with the insulated gate bipolar transistor Q3, and the insulated gate bipolar transistor Q12 is connected in parallel with the insulated gate bipolar transistor Q14. The IGBT fast control module 13 is an independent control unit, and a single control detection MCU is used. The first control chip 11 and the control detection MCU of the module are processed in a logic level mode, and the first control chip 11 can send a high or low level to tell the control detection MCU of the module whether to close or open, and the control detection MCU of the module reacts to the signal immediately after detection. In order to ensure the error indication of the interference signal, the control detection MCU of the module can filter the indication signal for 1ms.
[0030] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends", "left and right", "front and back" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0031] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connection" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements or the interaction relationship between two elements, unless otherwise explicitly limited, the above-mentioned terms in the utility model can be understood according to the specific meaning of the above-mentioned terms in the utility model according to the specific situation.
[0032] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not deviate from the technical solution of the present application. Any indirect modification, equivalent change and modification of the above embodiments based on the technical essence of the present application still belong to the scope of the technical solution of the present application.
Claims
1. A fast switching control device, characterized by, The application relates to a control panel and a cabinet thereof.
2. The fast-switching control device of claim 1, wherein, The first control chip (11) is connected with a CAN communication module (17) through a GMII interface.
3. The fast-switching control device of claim 1, wherein, A power management module (16) is arranged between the first control chip (11) and the analog signal acquisition module (12), and the power management module (16) is used for power supply of the first control chip (11) and the analog signal acquisition module (12).
4. The fast-switching control device of claim 1, wherein, The first control chip (11) or the second control chip (121) adopts a GD32H759IMT6 master control chip.
5. The fast-switching control device of claim 1, wherein, The analog signal conditioning circuit (123) comprises a TR3121-1CH mutual inductor, and the TR3121-1CH mutual inductor is connected with two amplifiers in sequence.
6. The fast-switching control device of claim 1, wherein, The IGBT fast control module (13) comprises an insulated gate bipolar transistor (Q1), an insulated gate bipolar transistor (Q3), an insulated gate bipolar transistor (Q5), an insulated gate bipolar transistor (Q9), an insulated gate bipolar transistor (Q12) and an insulated gate bipolar transistor (Q14), the insulated gate bipolar transistor (Q1) is connected with the insulated gate bipolar transistor (Q9) in parallel, the insulated gate bipolar transistor (Q9) is connected with the insulated gate bipolar transistor (Q5) in series, the insulated gate bipolar transistor (Q1) is connected with the insulated gate bipolar transistor (Q3) in series, the insulated gate bipolar transistor (Q12) is connected with the insulated gate bipolar transistor (Q14) in parallel.
7. The fast-switching control device of claim 1, wherein, An installation lug (6) is arranged at one end of the cabinet side plate (2) away from the cabinet back plate (3), and a handle (7) is arranged on the installation lug (6).