A data center load step-by-step switching device with fault isolation function

Abstract

The utility model provides a kind of data center load step-by-step switching device with fault isolation function, including main component, the inside installation of main component has control isolation component, control isolation component includes mounting plate, main PLC controller, deputy PLC controller, hierarchical execution switch component, fault isolation component and ethernet transceiver, main PLC controller and deputy PLC controller are respectively installed in the surface middle part of mounting plate, main PLC controller and deputy PLC controller upper and lower sides are equipped with hierarchical execution switch component and fault isolation component respectively.The utility model can encode the scene of various possible out line into program, can correctly and quickly make response when power failure or power recovery occurs, can effectively reduce artificial cost safely.

Description

Technical Field

[0001] This utility model relates to the field of engineering power supply system technology, specifically to a 10KV medium-voltage power supply scenario for large data centers, and specifically to a data center load step-by-step switching device with fault isolation function. Background Technology

[0002] With the increasing demand for "zero-interruption" power supply from critical data center operations (such as financial transactions and cloud services), conventional Class A data centers generally adopt a power supply architecture of "2 mains power + 1 diesel generator". However, traditional power supply control solutions have four major defects and lack effective fault isolation capabilities: Traditional solutions suffer from three major drawbacks: slow manual switching response (3-5 minutes, leading to the risk of IT equipment downtime), low reliability of single control nodes (MTBF < 50,000 hours), and poor fault location efficiency (average 15 minutes of manual troubleshooting required). Its critical business segments require zero-interruption switching between two mains power sources (tolerance of < 20ms voltage dip) and the ability to start the diesel generator set within 8 seconds in the event of a complete power failure (including a 5-second self-test process). To address this, a data center load cascading switching device with fault isolation function is proposed. Utility Model Content

[0003] In view of this, the present invention provides a data center load cascading switching device with fault isolation function, which aims to solve one of the technical problems in the prior art.

[0004] The technical solution of this utility model embodiment is implemented as follows: A data center load cascading switching device with fault isolation function includes a main component. A control isolation component is installed inside the main component. The control isolation component includes a mounting plate, a main PLC controller, a secondary PLC controller, a hierarchical execution switch component, a fault isolation component, and an Ethernet transceiver. The main PLC controller and the secondary PLC controller are respectively mounted on the middle of the surface of the mounting plate. The hierarchical execution switch component and the fault isolation component are respectively provided on the upper and lower sides of the main PLC controller and the secondary PLC controller. An Ethernet transceiver is mounted on the top of the surface of the mounting plate. A visual monitoring and interactive component is embedded on the front of the main component, and lifting and moving components are symmetrically installed at the four bottom corners of the main component.

[0005] A further preferred embodiment includes: a chassis cabinet, a cooling fan, an air inlet, an instrument panel, and a mechanical control panel; The top of the cabinet is equipped with a cooling fan, and the bottom sides of the cabinet are symmetrically equipped with air inlets. The top of the front of the cabinet is equipped with an instrument panel, and the bottom of the front of the cabinet is equipped with a mechanical control panel.

[0006] Further preferred: The Ethernet transceiver is a PRP redundant industrial Ethernet.

[0007] A further preferred embodiment: the graded execution switch assembly includes a mains power incoming switch, a diesel generator incoming switch, a bus tie switch, and a feeder switch connected side by side, wherein the mains power incoming switch, diesel generator incoming switch, bus tie switch, and feeder switch are all connected to the mounting plate via a connecting bracket.

[0008] A further preferred embodiment: the fault isolation component includes an incoming line fault lockout, a PT disconnection lockout, a DC power supply fault lockout, and a feeder failure lockout connected side by side, wherein the incoming line fault lockout, the PT disconnection lockout, the DC power supply fault lockout, and the feeder failure lockout are all connected to the mounting plate via a connecting bracket.

[0009] A further preferred embodiment includes the visual monitoring interaction component, the display housing, the fixing buckle, the touch screen, and the historical data storage hard drive. The touch screen is embedded inside the front of the display housing, the fixing buckle is placed on the upper and lower sides of the display housing, and the historical data storage hard drive is installed on the inner surface of the display housing.

[0010] A further preferred embodiment: the lifting and moving assembly includes a sleeve, a gasket, an adjusting bolt, rollers, and a rotating disk.

[0011] A further preferred embodiment: the sleeve has an opening on one side, a rotating disk is fixedly installed on the top of the sleeve, the top of the rotating disk is connected to the main body assembly, the bottom of the adjusting bolt is rotatably connected to the washer, and one side of the sleeve is connected to a roller via a pin.

[0012] This utility model has the following advantages: 1. Traditional single-circuit mains power outages use pressure tripping, requiring maintenance to manually reconnect circuits one by one according to power demand after power restoration. This process is slow, prone to errors, and carries significant maintenance risks. This step-by-step switching device can program various possible outage scenarios, enabling correct and rapid responses in the event of a power outage or restoration, effectively and safely reducing labor costs. 2. This utility model automatically controls both power outage and power restoration scenarios, greatly improving power supply reliability; 3. This utility model reduces the need for manual operation, greatly improving the safety of equipment and personnel; 4. This utility model improves the availability and reliability of power supply, optimizes the system structure to quickly identify and isolate faults, and reduces power outage time; 5. This utility model allows for customized human-machine interfaces to meet the workflow and operating habits of customers.

[0013] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a structural diagram of the control isolation component of this utility model; Figure 3 This is a structural diagram of the visual monitoring and interactive component of this utility model; Figure 4 This is another structural diagram of the visual monitoring and interactive component of this utility model; Figure 5 This is a schematic diagram of the structure of the hierarchical execution switch assembly of this utility model; Figure 6 This is a structural diagram of the fault isolation component of this utility model; Figure 7 This is a structural diagram of the lifting and moving component of this utility model; Figure 8 This is a three-dimensional structural diagram of the lifting and moving component of this utility model.

[0016] Figure label: 10. Main components; 101. Chassis / cabinet; 102. Cooling fan; 103. Air inlet; 104. Instrument panel; 105. Mechanical control panel; 20. Control isolation component; 201. Mounting plate; 202. Main PLC controller; 203. Secondary PLC controller; 204. Hierarchical execution switch assembly; 205. Fault isolation component; 206. Ethernet transceiver; 2041. Mains power incoming switch; 2042. Diesel generator incoming switch; 2043. Busbar tie switch; 2044. Feeder switch; 2051. Incoming line fault lockout; 2052. PT disconnection lockout; 2053. DC power supply fault lockout; 2054. Feeder failure lockout; 30. Visual monitoring and interactive components; 301. Monitor housing; 302. Fixing clips; 303. Touch screen; 304. Historical data storage hard drive; 40. Lifting and moving assembly; 401. Sleeve; 402. Gasket; 403. Adjusting bolt; 404. Roller; 405. Rotary disc. Detailed Implementation

[0017] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0018] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; or as a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application.

[0019] It should also be noted that in the description of this application, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] The specific examples described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] Example like Figures 1-8 As shown, this utility model embodiment provides a data center load cascading switching device with fault isolation function, including a main component 10. A control isolation component 20 is installed inside the main component 10. The control isolation component 20 includes a mounting plate 201, a main PLC controller 202, a secondary PLC controller 203, a hierarchical execution switch component 204, a fault isolation component 205, and an Ethernet transceiver 206. The main PLC controller 202 and the secondary PLC controller 203 are respectively mounted on the center of the surface of the mounting plate 201. The hierarchical execution switch component 204 and the fault isolation component 205 are respectively provided on the upper and lower sides of the main PLC controller 202 and the secondary PLC controller 203. An Ethernet transceiver 206 is mounted on the top of the surface of the mounting plate 201, replacing traditional hard wiring. The communication latency is <200μs, connecting the control unit, the execution component, and the fault isolation unit to ensure real-time transmission of commands and fault signals. It supports RS485 / RS232 interfaces and is compatible with the four remote functions of "remote control, telemetry, remote signaling, and remote adjustment," facilitating remote operation and maintenance and fault monitoring. The main and auxiliary programmable logic controllers (PLCs) achieve real-time data synchronization through fiber optic synchronous communication (compliant with IEC61439 standard), with a fault switching time of ≤50ms, avoiding control interruption caused by single PLC failure; the core components adopt a modular design, supporting online replacement, with an average repair time of ≤3 minutes, shortening the fault repair cycle.

[0023] A visual monitoring and interactive component 30 is embedded on the front of the main component 10, and lifting and moving components 40 are symmetrically installed at the four bottom corners of the main component 10.

[0024] In this embodiment, specifically: the main component 10 includes a chassis cabinet 101, a cooling fan 102, an air inlet 103, an instrument panel 104, and a mechanical control panel 105; A cooling fan 102 is installed on the top of the cabinet 101. Air inlets 103 are symmetrically installed on the bottom sides of the cabinet 101. An instrument panel 104 is installed on the top front of the cabinet 101. A mechanical control panel 105 is installed on the bottom front of the cabinet 101. This serves as the physical framework of the device, integrating all internal core functional modules (such as dual-redundant PLCs, busbar integrated protection devices, communication interfaces, etc.). The enclosed structure provides a dustproof, moisture-proof, and electromagnetic interference-resistant operating environment. Simultaneously, the robust cabinet resists external mechanical impacts, ensuring the stable operation of precision electronic components and meeting the stringent environmental requirements of data center computer rooms. The cooling fan 102, installed at the top, is responsible for actively exhausting hot air from inside the cabinet. The air inlets 103 are symmetrically located on both sides of the bottom to draw in external cold air, forming a forced convection air duct with "bottom air intake and top air exhaust".

[0025] The two work together to solve the heat dissipation problem during device operation: the internal control module, execution components and other components will generate a lot of heat during long-term operation. High temperature can easily lead to the performance degradation or failure of electronic components (such as PLC logic errors, switch malfunctions). This heat dissipation structure can control the temperature inside the cabinet at 0-40℃ (the normal operating temperature range of data center equipment), ensuring the stable operation of the core module and extending the life of the equipment. Mounted on the top front, it is used to display key operating parameters of the device in real time, such as: Electrical parameters: 10KV bus voltage, incoming current, load power, etc. Status signals: Mains power / diesel generator power supply mode, switch on / off status, main / standby PLC switching status; Fault alarm: Fault type (e.g., PT disconnection, feeder failure to operate), fault location (e.g., busbar section I in substation A).

[0026] By presenting visualized data, maintenance personnel can quickly grasp the operating status of the device without entering the cabinet, providing an intuitive basis for troubleshooting and decision-making, and improving monitoring efficiency. Located on the lower front, it integrates manual operation components (such as emergency trip / close buttons, mode switching knobs, reset buttons, etc.) as a "backup operation channel" for the automatic control system: When the automatic control logic fails (such as PLC communication interruption), critical operations (such as emergency shutdown of diesel generator input line) can be forced to be executed through mechanical buttons. It supports switching between "automatic" and "manual" modes. In debugging and maintenance scenarios, the load switching sequence can be manually controlled to avoid interference from automatic logic. Provide physical interlocking devices (such as key switches) to prevent unauthorized personnel from operating the equipment and ensure operational safety.

[0027] In this embodiment, specifically: the Ethernet transceiver 206 is a PRP redundant industrial Ethernet, which connects all control units, actuators, and monitoring modules (latency < 200μs); an RS485 interface is reserved for remote control functions and interaction with the host computer.

[0028] In this embodiment, specifically: the hierarchical execution switch assembly 204 includes a mains power incoming switch 2041, a diesel generator incoming switch 2042, a bus tie switch 2043, and a feeder switch 2044 connected side by side. The mains power incoming switch 2041, diesel generator incoming switch 2042, bus tie switch 2043, and feeder switch 2044 are all connected to the mounting plate 201 through a connecting bracket. The mains power incoming switch, diesel generator incoming switch, bus tie switch, and feeder switch are connected. The mains-mains / mains-diesel generator switching is achieved through the cooperation of the incoming switch and the bus tie switch, with a switching time ≤200ms. The feeder switches are grouped according to load priority, supporting step-by-step switching to avoid the impact risk of concentrated switching.

[0029] In this embodiment, specifically: the fault isolation component 205 includes an incoming line fault interlock 2051, a PT disconnection interlock 2052, a DC power supply fault interlock 2053, and a feeder failure interlock 2054 connected side by side. The incoming line fault interlock 2051, PT disconnection interlock 2052, DC power supply fault interlock 2053, and feeder failure interlock 2054 are all connected to the mounting plate 201 through a connecting bracket. The incoming line fault interlock: when the simulated medium voltage incoming line overcurrent trips, the device automatically interlocks the switching logic related to the faulty incoming line to prevent power supply with faults. PT disconnection interlock: When the secondary circuit breaker of the busbar PT is disconnected to simulate a PT fault, the device will operate without error, avoiding erroneous switching based on incorrect voltage data; DC power supply failure lockout: When the power supply to the DC power supply control bus or the bus is disconnected, the logic automatically locks out and resets after the power is restored; Feeder failure to operate lockout: When a simulated medium-voltage feeder switch fails to operate, the device locks out the feeder circuit to ensure the normal operation of the overall logic and not affect the power supply to other loads.

[0030] In this embodiment, specifically: the visual monitoring interaction component 30, the display housing 301, the fixing buckle 302, the touch screen 303, and the historical data storage hard disk 304 are as follows: the touch screen 303 is embedded inside the front of the display housing 301; the fixing buckle 302 is placed on the upper and lower sides of the display housing 301; the historical data storage hard disk 304 is installed on the inner surface of the display housing 301; the 12-inch touch screen HMI (including 3D topology) displays the circuit breaker status and voltage / current parameters in real time, supports simulation testing and emergency operation; supports Modbus protocol to interact with the data center host computer system; the HMI interface can be customized to adapt to customer workflows; unique configuration tools save 30% of engineering implementation time and installation costs; the historical data storage hard disk 304 is an industrial-grade historical data storage unit (capacity ≥ 100,000 records).

[0031] In this embodiment, specifically: the lifting and moving assembly 40 includes a sleeve 401, a gasket 402, an adjusting bolt 403, a roller 404, and a rotating disk 405.

[0032] In this embodiment, specifically: one side of the sleeve 401 is provided with an opening, a rotating disk 405 is fixedly installed on the top of the sleeve 401, the top of the rotating disk 405 is connected to the main body assembly 10, the bottom of the adjusting bolt 403 is rotatably connected to the washer 402, and one side of the sleeve 401 is connected to the roller 404 through a pin.

[0033] In this embodiment, specifically: the top of the rotating disk 405 is connected to the main body component 10, and the bottom is fixed to the sleeve 401, which can drive the main body component to rotate around the axis of the sleeve. This design facilitates the adjustment of the orientation of the instrument panel 104 and the mechanical control panel 105 by maintenance personnel—for example, when the device is installed against a wall, the operating surface can be rotated to face the passage, avoiding inconvenience caused by space limitations and improving the convenience of human-machine interaction.

[0034] In this embodiment, specifically: the sleeve 401 serves as the core support component, providing telescopic guidance for the adjusting bolt 403 (the opening facilitates bolt operation and positioning), and connecting the roller 404 and the top-fixed rotating disk 405 via a pin, integrating the functions of movement, lifting, and rotation into one unit, ensuring structural stability when all components work together.

[0035] With its combined functions of "movable (rollers) + adjustable height and level (adjusting bolts + shims) + rotatable (rotary disc)," it not only meets the data center's need for flexible adjustment of equipment installation positions, but also ensures the stability of device operation through precise leveling, while improving the convenience of operation and maintenance. It is a key adaptable structure connecting the main components and the installation environment.

[0036] Simulate disconnection of the secondary circuit breaker of the PT on the II section busbar of the power distribution room. The PT disconnection signal is transmitted to the auxiliary PLC controller 203 (the backup PLC monitors synchronously when the main PLC controller 202 is running normally). The auxiliary PLC controller 203 immediately triggers the PT disconnection interlocking logic to prohibit incoming line switching and bus tie closing operations related to the II section busbar in the power distribution room, thus avoiding malfunctions based on incorrect voltage data. The HMI displays an alarm for "PT disconnection in power distribution room section II". Historical data records the time and location of the fault. After maintenance personnel troubleshoot the fault (close the secondary circuit breaker of the PT), the PLC automatically releases the interlock and restores normal control.

[0037] 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.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A data center load cascading switching device with fault isolation function, comprising a main component (10), characterized in that: The main component (10) has a control isolation component (20) installed inside. The control isolation component (20) includes a mounting plate (201), a main PLC controller (202), a secondary PLC controller (203), a hierarchical execution switch component (204), a fault isolation component (205), and an Ethernet transceiver (206). The main PLC controller (202) and the secondary PLC controller (203) are respectively mounted on the middle of the surface of the mounting plate (201). The hierarchical execution switch component (204) and the fault isolation component (205) are respectively provided on the upper and lower sides of the main PLC controller (202) and the secondary PLC controller (203). The Ethernet transceiver (206) is mounted on the top of the surface of the mounting plate (201). A visual monitoring and interactive component (30) is embedded on the front of the main component (10), and lifting and moving components (40) are symmetrically installed at the four bottom corners of the main component (10).

2. The data center load cascading switching device with fault isolation function according to claim 1, characterized in that: The main component (10) includes a chassis cabinet (101), a cooling fan (102), an air inlet (103), an instrument panel (104), and a mechanical control panel (105). The top of the cabinet (101) is equipped with a cooling fan (102), and the bottom sides of the cabinet (101) are symmetrically equipped with air inlets (103). The top front of the cabinet (101) is equipped with an instrument panel (104), and the bottom front of the cabinet (101) is equipped with a mechanical control panel (105).

3. The data center load cascading switching device with fault isolation function according to claim 1, characterized in that: The Ethernet transceiver (206) is a PRP redundant industrial Ethernet.

4. The data center load cascading switching device with fault isolation function according to claim 1, characterized in that: The hierarchical execution switch assembly (204) includes a mains power incoming switch (2041), a diesel generator incoming switch (2042), a bus tie switch (2043), and a feeder switch (2044) connected side by side. The mains power incoming switch (2041), diesel generator incoming switch (2042), bus tie switch (2043), and feeder switch (2044) are all connected to the mounting plate (201) through a connecting bracket.

5. The data center load cascading switching device with fault isolation function according to claim 1, characterized in that: The fault isolation component (205) includes an incoming line fault lockout (2051), a PT disconnection lockout (2052), a DC power supply fault lockout (2053), and a feeder failure lockout (2054) connected side by side. The incoming line fault lockout (2051), the PT disconnection lockout (2052), the DC power supply fault lockout (2053), and the feeder failure lockout (2054) are all connected to the mounting plate (201) through a connecting bracket.

6. The data center load cascading switching device with fault isolation function according to claim 1, characterized in that: The visualization monitoring interaction component (30), display housing (301), fixing buckle (302), touch screen (303) and historical data storage hard disk (304) are described. The touch screen (303) is embedded inside the front of the display housing (301). The fixing buckle (302) is placed on the upper and lower sides of the display housing (301). The historical data storage hard disk (304) is installed on the inner surface of the display housing (301).

7. The data center load cascading switching device with fault isolation function according to claim 1, characterized in that: The lifting and moving assembly (40) includes a sleeve (401), a gasket (402), an adjusting bolt (403), a roller (404), and a rotating disk (405).

8. The data center load cascading switching device with fault isolation function according to claim 7, characterized in that: The sleeve (401) has an opening on one side, and a rotating disk (405) is fixedly installed on the top of the sleeve (401). The top of the rotating disk (405) is connected to the main body assembly (10), the bottom of the adjusting bolt (403) is rotatably connected to the gasket (402), and one side of the sleeve (401) is connected to the roller (404) through a pin.

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