Small bus intelligent power distribution system for data center and control method

Abstract

The invention relates to a miniature bus intelligent power distribution system for a data center and a control method, a starting end box is used for introducing an external power supply, a jack box is used for taking power from a corresponding section of miniature bus and transmitting the power to each cabinet, and an inter-section connector is used for electrically connecting two adjacent sections of miniature buses and isolating the jack box with a fault phase at a fault section; normal operation of other jack boxes on a non-fault phase on the fault section and the jack box on a rear section small bus influence phase is maintained; the intelligent monitoring unit communicates with the starting end box intelligent monitoring module, the jack box intelligent monitoring module and the inter-segment intelligent monitoring module through a Modbus protocol or a 485 interface. According to the invention, the structure is reasonable, the plug box on the fault phase on the small bus of the fault section is quickly isolated through the inter-section connector, the plug boxes on other phases are kept to work normally, the fault point is accurately and quickly determined, the normal electrification of each phase of the small bus influenced by the fault phase of the small bus of the fault section is quickly recovered, and the risk can be limited to the minimum range.

Description

Technical Field

[0001] The present invention relates to a small busbar intelligent power distribution system and a control method for a data center, belonging to the technical field of power distribution in data centers. Background Art

[0002] In recent years, IDC (Internet Data Center) data room construction has rapidly developed, continuing to evolve towards high density, compact size, and high capacity. The previous power supply model, using distribution cabinets, has suffered from large footprints and limited capacity. With the sharp increase in electricity demand, the installation requirements for power equipment are becoming increasingly stringent, placing higher demands on the feasibility, reliability, and standardization of power system connections. Existing data rooms utilize a track-type distribution busbar system, replacing the traditional power distribution system of a single cabinet and cable tray. This system significantly alleviates these issues. The distribution busbar is installed on top of the equipment, minimizing the space occupied by the equipment room.

[0003] Track-type busbar power distribution systems typically consist of multiple cabinets, using a busbar, a starter box, and a plug-in box. The conductive components on the starter box connect to the copper busbar inside the busbar, achieving electrical connection between phases. The plug-in box, located at the bottom of the busbar where power is required, houses a circuit breaker and features a plug-in conductive component on the upper connector. The plug-in conductive component on top of the plug-in box at each feed point connects to the copper busbar on the busbar to draw power, providing power to the corresponding cabinet. This power is then redistributed through the PDUs in each cabinet.

[0004] The rail-type busbar power distribution system receives external power at the head end box and transmits it through multiple small busbar segments and a combination of inter-segment connectors on each of the two small busbars. Cabinets generally use an AB dual-circuit power supply mode, and the inter-segment connectors connect and secure the front and rear PE and N busbars, as well as the A and B busbars, at the inter-segment connectors. When one line loses power, the other line can be used directly to provide continuous power to the cabinet. Because each plug-in box relies on another line for power, a failure in one cabinet will cause the corresponding plug-in box to fail, tripping the corresponding phase's circuit breaker and causing one phase of the small busbar to lose power. This will also de-energize all plug-in boxes connected to that phase's busbar. Once both phases are tripped, all cabinets will lose power, affecting the transmission and security of data within the cabinets. Cabinet power outages are serious accidents for data centers, and therefore the risk of power outages cannot be completely eliminated. Summary of the Invention

[0005] The purpose of the present invention is to provide a small bus intelligent power distribution system and control method for data centers with a reasonable structure, which uses three-phase power supply and inter-segment connectors to quickly isolate the plug-in box on the faulty phase of the faulty section of the small bus while keeping the plug-in boxes on other phases working normally. Through intelligent monitoring and management, the fault point can be accurately and quickly determined, and the power supply to the non-faulty plug-in boxes can be quickly restored, thereby limiting the risk to a minimum range.

[0006] The technical solution of the present invention to achieve the above-mentioned object is: a small busbar intelligent power distribution system for a data center, characterized by comprising: a head end box, multiple sections of small busbars for power transmission, inter-section connectors, a plug-in box and an intelligent monitoring unit; The starting box is used to introduce an external power source and control the on-off operation of the external power source when it enters the small busbar. The starting box includes a starting box body, three current transformers and three single-phase circuit breakers arranged in the starting box body, and an intelligent monitoring module for the starting box. The starting box body is equipped with a PE busbar, an N busbar, and three single-phase busbars. The three single-phase busbars are respectively introduced into the corresponding single-phase circuit breakers through their respective current transformers; the intelligent monitoring module of the starting box is used to monitor the electrical data and environmental data of the starting box, send the monitoring data of the starting box to the intelligent monitoring unit, and when the fault phase is eliminated, the corresponding single-phase circuit breaker automatically resumes power supply; The plug-in box is used to draw power from the corresponding section of the small busbar and transmit it to each cabinet. The plug-in conductive member on the upper part of the plug-in box is electrically connected to the small busbar of the corresponding section. The plug-in box contains a micro circuit breaker, an industrial socket and a plug-in box intelligent monitoring module. The plug-in box intelligent monitoring module is used to monitor the electrical data and environmental data of the plug-in box, send the plug-in box monitoring data to the intelligent monitoring unit, and receive the fault phase elimination signal sent by the intelligent monitoring unit, so that the corresponding plug-in box automatically resumes power supply; The inter-segment connector is used to electrically connect two adjacent sections of small busbars, isolate the plug-in box of the faulty phase of the faulty section, and maintain the normal operation of other plug-in boxes on the non-faulty phase of the faulty section and the plug-in box on the phase affected by the small busbar; the inter-segment connector includes an inter-segment connection box and an inter-segment PE busbar, an inter-segment N busbar, a busbar isolation and bridging conversion mechanism, an actuator, and an inter-segment intelligent monitoring module arranged in the inter-segment connection box. The two ends of the inter-segment PE busbar and the inter-segment N busbar are fixedly connected to the PE busbar and N busbar on the corresponding front section small busbar and rear section small busbar; the busbar isolation and bridging conversion mechanism includes three movable inter-segment busbars and a movable bridging busbar arranged at the rear of the two inter-segment busbars. The front and rear sides of the three inter-segment busbars correspond to the single-phase busbars of the same phase corresponding to the front section small busbar and the rear section small busbar. The two sides of the bridging bar correspond to the single-phase busbars of different phases between the inter-segment busbar and the rear-segment small busbar; the actuator includes a plurality of first actuators and a plurality of second actuators, the first actuators are connected to the corresponding inter-segment busbars and drive the movement of the inter-segment busbars, and the inter-segment busbars are connected to the same-phase single-phase busbars of the front-segment small busbar and the rear-segment small busbars to energize and disconnect the power supply, the second actuators are connected to the corresponding bridging bars and drive the movement of the bridging bars, and the bridging bars are connected to the different-phase single-phase busbars between the inter-segment busbar and the rear-segment small busbar to energize and disconnect the power supply; the inter-segment intelligent monitoring module is used to monitor the electrical data and environmental data of the inter-segment connector, send the monitoring data of the inter-segment connector to the intelligent monitoring unit, receive the first actuator action signal and the second actuator action signal sent by the intelligent monitoring unit, and control the extension and retraction actions of the first actuator and the second actuator; The intelligent monitoring unit communicates with the intelligent monitoring module of the starting box, the intelligent monitoring module of the plug-in box and the inter-segment intelligent monitoring module through the Modbus protocol or the 485 interface, receives the monitoring data of the starting box, the monitoring data of the inter-segment connector and the monitoring data of the plug-in box in real time, matches the received monitoring data with the fault data in the database of the intelligent monitoring unit, analyzes and judges the fault data of the distribution system, locates the fault point, and sends corresponding signals to the intelligent monitoring module of the starting box, the intelligent monitoring module of the plug-in box and the inter-segment intelligent monitoring module. The display screen of the intelligent monitoring unit displays the monitoring data on site, alarms the fault point, and uploads the fault data to the background dynamic environment system.

[0007] Another technical solution of the present invention to achieve the above object is: a control method based on a small bus intelligent power distribution system for a data center, characterized by: performing the following steps: The starting box is connected to an external power supply, and each section of the small busbar is connected and energized through the inter-section connector. Each plug-in box draws power from the small busbar of the corresponding section and transmits the power to the power distribution unit of the corresponding cabinet. The intelligent monitoring module of the starting box uploads the electrical data and environmental data in the starting box to the intelligent monitoring unit in real time. The intelligent monitoring modules of each plug-in box upload the electrical data and environmental data of the plug-in box to the intelligent monitoring unit in real time. The intelligent monitoring modules between each section upload the electrical data and environmental data of the plug-in box to the intelligent monitoring unit in real time. When a single-phase or two-phase fault occurs in the small busbar, the single-phase circuit breaker of the faulty phase is short-circuited and disconnected, and the other single-phase circuit breakers maintain normal power supply. The intelligent monitoring unit matches the received monitoring data with the fault data in the intelligent monitoring unit database, analyzes and judges the faulty phase, and locates the faulty section of the small busbar. The first actuator disconnection signal and the second actuator connection signal of the corresponding faulty phase are sent to the inter-segment intelligent monitoring module corresponding to the front inter-segment connector and the inter-segment connector at the faulty section. Each first actuator drives the corresponding inter-segment busbar to disconnect from the single-phase busbar in front of the affected phase, the single-phase busbar of the faulty phase at the faulty section, and the single-phase busbar of the affected phase at the rear section, and isolates the plug-in box with the faulty phase on the faulty section. The second actuator then drives the corresponding bridging bar to connect and energize the inter-segment busbar and the single-phase busbar of the affected phase, so as to keep the other non-faulty phases on the faulty section of the small busbar powered on. The plug-in box and the small busbar affect the normal operation of the plug-in box on the phase; after the fault phase of the plug-in box is released, the intelligent monitoring unit sends the first actuator connection signal and the second actuator disconnection signal of the corresponding fault phase to the inter-section intelligent monitoring module, and the second actuator drives the corresponding bridging bar to disconnect the inter-section busbar and the single-phase busbar of the affected phase, and the first actuator then drives the corresponding inter-section busbar to connect with the single-phase busbar of the affected phase, the single-phase busbar of the fault-free phase, and the single-phase busbar of the same phase in the rear section; the starting box intelligent monitoring module and the plug-in box intelligent monitoring module receive the fault phase release signal, the corresponding single-phase circuit breaker automatically restores power supply, and the micro circuit breaker on the corresponding plug-in box automatically restores power supply; the display screen of the intelligent monitoring unit displays various monitoring data on site, alarms the fault point and uploads the fault data to the background dynamic ring system, and the background dynamic ring system communicates with the handheld portable device and sends alarms and abnormal fault information.

[0008] The small busbar intelligent power distribution system for data centers of the present invention adopts a starting box, multiple sections of small busbars for power transmission, inter-section connectors and plug-in boxes, and an intelligent monitoring unit. The small busbar adopts three-phase five-wire, and the power supply line is increased. The faulty plug-in boxes on the faulty phase of the small busbar where the fault occurs are isolated through the inter-section connector. Under the premise of maintaining the positive power supply to other plug-in boxes on the non-faulty phase of the faulty section of the small busbar, the normal power supply of the non-faulty plug-in boxes on the affected phase is quickly restored through the bridge row, so that the non-faulty plug-in boxes on the corresponding affected phase of the small busbar can all be powered normally. Except for the faulty plug-in box, the risk of affecting other plug-in boxes can be limited to the minimum range. The present invention receives monitoring data from the start-end box, inter-segment connectors, and plug-in boxes in real time through an intelligent monitoring unit, and can monitor the start-end box, inter-segment connectors, and plug-in boxes online in real time at all times. The intelligent monitoring unit compares the fault data in the database of computer room fault scenarios to accurately analyze the data at the time of the fault, quickly finds the fault phase at the small busbar of the faulty section and the cause of the fault, and automatically restores power to the plug-in box after the fault in the plug-in box is resolved. The present invention can accurately locate the fault point in a timely manner, send alarms and abnormal fault information to operation and maintenance personnel, enable operation and maintenance personnel to quickly replace faulty equipment and troubleshoot the fault, thereby reducing risks and limiting the minimum risk range, providing a strong guarantee for the continuous power supply of data center computer room cabinets and improving the security of data storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

[0010] Figure 1 The diagram is a structural diagram of a small busbar intelligent power distribution system for a data center according to the present invention.

[0011] Figure 2 This is a schematic diagram of the structure in which two sections of small busbars are connected to the inter-section connectors in a normal manner.

[0012] Figure 3 yes Figure 2 Schematic diagram of the D-direction structure.

[0013] Figure 4 It is a structural schematic diagram of the front-stage small busbar phase and each phase of the inter-segment connector being connected to the faulty phase of the present invention.

[0014] Figure 5 yes Figure 4 Schematic diagram of the E-direction structure.

[0015] Among them: 1—small busbar, 1-1—single-phase busbar, 2—plug-in box, 2-1—plug-in conductive parts, 2-2—industrial socket, 2-3—micro circuit breaker, 2-4—plug-in box intelligent monitoring module, 3—inter-section connector, 3-1—inter-section intelligent monitoring module, 3-2—inter-section busbar, 3-3—first actuator, 3-4—bridge bar, 3-5—second actuator, 4—starting box, 4-1—current transformer, 4-2—single-phase circuit breaker, 4-3—starting box intelligent monitoring module, 5—intelligent monitoring unit, 6—background dynamic ring system. DETAILED DESCRIPTION

[0016] See Figure 1 、 2 As shown, the present invention is a small busbar intelligent power distribution system for a data center, comprising a starting box 4, multiple sections of small busbars 1 for power transmission, inter-segment connectors 3, a plug-in box 2 and an intelligent monitoring unit 5. The small busbar intelligent power distribution system of the present invention supplies power to a group of cabinets, so the starting box 4, each section of the small busbar 1 and the inter-segment connectors 3 are installed directly above each group of cabinets.

[0017] See Figure 1 As shown, the starting box 4 of the present invention is used to introduce an external power supply and control the on-off operation of the external power supply when entering the small busbar. The starting box 4 of the present invention includes a starting box body, three current transformers 4-1, three single-phase circuit breakers 4-2 and a starting box intelligent monitoring module 4-3 arranged in the starting box body. The starting box body is equipped with a PE row, an N row and three single-phase busbars. The three single-phase busbars are respectively introduced to the corresponding single-phase circuit breakers 4-2 through their respective current transformers 4-1, that is, the A-phase busbar, the B-phase busbar and the C-phase busbar are respectively measured and Protection, then the A-phase busbar, B-phase busbar and C-phase busbar are connected to the corresponding single-phase circuit breakers 4-2. When overcurrent, overload and short circuit occur in the corresponding circuit, each single-phase circuit breaker 4-2 can automatically sense the abnormal situation and quickly disconnect the circuit to protect the circuit. In the present invention, after any one or two phases of the three single-phase circuit breakers 4-2 are short-circuited and disconnected, the other single-phase circuit breakers 4-2 supply power normally to ensure continuous power supply to the cabinet. After the faulty phase is eliminated, the single-phase circuit breaker 4-2 can automatically restore power supply.

[0018] See Figure 1As shown, the intelligent monitoring module 4-3 of the starting box of the present invention is used to monitor the electrical data and environmental data of the starting box 4. The intelligent monitoring module 4-3 of the starting box adopts the existing intelligent monitoring device. The intelligent monitoring module 4-3 of the starting box monitors the voltage, current and phase sequence of the starting box 4, and monitors the temperature and humidity environment at the same time. The monitoring data of the starting box 4 is sent to the intelligent monitoring unit 5, and the fault phase elimination signal is sent by the receiving intelligent monitoring unit 5. The corresponding single-phase circuit breaker 4-2 automatically restores power supply. The intelligent monitoring module 4-3 of the starting box of the present invention communicates with the fire linkage control system and has a fire linkage function.

[0019] See Figure 1 As shown, the plug-in box 2 of the present invention is used to take power from the small busbar 1 on the corresponding section and transmit it to each cabinet, and redistribute the power through the PDU of each cabinet. Figure 1 As shown, the plug-in conductive member 2-1 on the upper part of the plug-in box 2 of the present invention is electrically connected to the small busbar 1 of the corresponding section. The plug-in box 2 is provided with a micro circuit breaker 2-3, an industrial socket 2-2 and a plug-in box intelligent monitoring module 2-4. The plug-in conductive member 2-1 on the upper part of the plug-in box 2 is electrically connected to the small busbar 1 of the corresponding section. The plug-in conductive member 2-1 on the upper part of the plug-in box 2 is provided with elastic conductive members corresponding to the A-phase busbar, the B-phase busbar, the C-phase busbar, the PE row and the N row. The elastic conductive members are crimped on the copper bars corresponding to the phases of the small busbar rails of the corresponding sections, thereby realizing the electrical connection between the equipment in the cabinet and the small busbar 1. Figures 1 to 5 As shown, the present invention's small busbars, including the PE busbar, N busbar, A-phase busbar, B-phase busbar, and C-phase busbar, form a three-phase, five-wire system. These busbars are assigned a one-to-one phase sequence within the inter-segment connector 3. Busbar isolation and bridging conversion mechanisms can be used to isolate or connect the A-phase, B-phase, and C-phase busbars, respectively. The present invention's plug-in box 2 includes a microcircuit breaker 2-3 and an industrial socket 2-2. The microcircuit breaker 2-3 provides circuit protection, while the industrial socket 2-2 facilitates power supply to the cabinet. The intelligent monitoring module 2-4 of the plug-in box of the present invention is used to monitor the electrical data and environmental data of the plug-in box 2. The intelligent monitoring module 2-4 of the plug-in box monitors the voltage and current of the starting box 4, and monitors the temperature and humidity environment inside the starting box 4. The monitoring data of the plug-in box 2 is sent to the intelligent monitoring unit 5, and the fault phase elimination signal sent by the intelligent monitoring unit 5 is received. The corresponding plug-in box 2 automatically resumes power supply. The plug-in box intelligent monitoring module 2-4 uploads the monitoring data of the plug-in box 2 and receives the operation signal sent by the intelligent monitoring unit 5. After the fault phase is eliminated, the micro circuit breaker 2-3 automatically resumes power supply.

[0020] See Figure 1As shown, the inter-section connector 3 of the present invention is used to electrically connect two adjacent sections of small busbars 1. Multiple sections of small busbars 1 are connected through multiple inter-section connectors 3. The inter-section connector 3 performs a one-to-one phase sequence correspondence between two adjacent sections of small busbars 1, transmits the external power introduced from the starting box 4, and then transmits it to the corresponding plug-in box 2 through each section of small busbar 1, isolating the plug-in box 2 with the faulty phase in the faulty section and maintaining the normal operation of other plug-in boxes 2 on the non-faulty phases on the faulty section and the non-faulty plug-in boxes 2 on the corresponding affected phases. Figures 1 to 5 As shown, the inter-segment connector 3 of the present invention includes an inter-segment connection box and an inter-segment PE bus, an inter-segment N bus, a busbar isolation and bridging conversion mechanism, an actuator and an inter-segment intelligent monitoring module 3-1 arranged in the inter-segment connection box. The two ends of the inter-segment PE bus and the inter-segment N bus are fixedly connected to the PE bus and N bus on the corresponding front-segment small bus 1 and the rear-segment small bus 1, and can be connected by fasteners.

[0021] See Figures 2-4 As shown, the busbar isolation and bridging conversion mechanism of the present invention includes three movable inter-segment busbars 3-2 and a bridging bar 3-4 arranged at the rear of the inter-segment busbars 3-2 and capable of movement. The three inter-segment busbars 3-2 are corresponding to the A-phase inter-segment busbar, the B-phase inter-segment busbar, and the C-phase inter-segment busbar and are capable of movement. In normal state, the front and rear sides of the three inter-segment busbars 3-2 correspond to the single-phase busbars 1-1 of the same phase as the front and rear small busbars 1, and the two sides of the bridging bar 3-4 correspond to the single-phase busbars 1-1 of the different phases between the inter-segment busbars 3-2 and the rear small busbars 1. The distance between the bridging bar 3-4 and the inter-segment busbars 3-2 and the single-phase busbars 1-1 is ≥20mm. Figures 2 to 5As shown, the two ends of the A-phase inter-section busbar, the B-phase inter-section busbar and the C-phase inter-section busbar correspond to the A-phase busbar, B-phase busbar and C-phase busbar of the corresponding section a small busbar and the A-phase busbar, B-phase busbar and C-phase busbar of the section b small busbar, and the bridging bars 3-4 correspond to the single-phase busbars 1-1 of the two different phases, the bridging bars 3-4 correspond to the B-phase inter-section busbar and the A-phase busbar or C-phase busbar of the section b small busbar, or the bridging bars 3-4 correspond to the A-phase inter-section busbar and the C-phase busbar of the section b small busbar. Therefore, when any one or two faulty phases appear on the small busbar 1, except for the PE bar and the N bar, the inter-section busbar 3-2 of the faulty phase corresponding to the inter-section connector 3 is disconnected from the single-phase busbar 1-1 of the faulty phase, and the plug-in box 2 with the faulty phase at the faulty section small busbar is isolated in time, and then the bridging bars are used to connect the inter-section connector 3. The row 3-4 connects the other energized inter-section busbars 3-2 with the single-phase busbar 1-1 of the affected phase corresponding to the rear-section small busbar. When one or two fault phases appear in any of the three phases of the A-phase busbar, the B-phase busbar and the C-phase busbar, the single-phase circuit breaker 4-2 of the corresponding fault phase trips, and the inter-section busbar 3-2 of the corresponding fault phase is separated from the single-phase busbar 1-1 of the same phase, and the fault phase is isolated. The fault plug-in box of the fault phase of the fault section small busbar is isolated from the whole in time, and the normal operation of other plug-in boxes 2 on the non-fault phase of the fault section is guaranteed. The bridging row 3-4 connects other normal inter-section busbars 3-2 with the single-phase busbar 1-1 of the affected phase of the small busbar 1, and the bridging row 3-4 connects the normal inter-section busbar 3-2 with the single-phase busbar 1-1 of the affected phase of the rear-section small busbar 1. When the faulty busbar is located at the rear, the inter-section connector 3 of the front busbar and the inter-section connector 3 at the rear of the faulty busbar will operate to ensure that except for the faulty phase of the faulty busbar, all others remain energized, so that the plug-in box 2 on the busbar 1 corresponding to the faulty phase can operate normally. Figure 4 、 5 As shown, when a fault phase occurs on the B-phase busbar in section a of the busbar, the busbar can be any section of the busbar, then section a is the fault section of the busbar, the A-phase busbar and the C-phase busbar are energized, and the B-phase single-phase circuit breaker 4-2 trips. At this time, the B-phase inter-section busbar 3-2 is controlled to separate from the B-phase busbar of section a and the B-phase busbar of section b, with a separation distance ≥ 20 mm to maintain a safe electrical distance. Then, the bridging bar 3-4 is controlled to connect the B-phase inter-section busbar with the A-phase busbar of section b, or the bridging bar 3-4 is controlled to connect the B-phase inter-section busbar with the C-phase busbar of section b and energize the busbar to isolate the faulty B-phase busbar in section a. At the same time, the B-phase busbar of the affected phase in section b is energized after bridging, ensuring that the plug-in box 2 on the B-phase busbar on section b works normally.

[0022] See Figures 2 to 5As shown, the actuator of the present invention includes multiple first actuators 3-3 and multiple second actuators 3-5. The first actuators 3-3 are connected to the corresponding inter-segment busbars 3-2 and drive the movement of the inter-segment busbars 3-2, and the inter-segment busbars 3-2 are connected to the same-phase single-phase busbars 1-1 of the front-segment small busbar 1 and the rear-segment small busbar 1 to energize and disconnect the power. The second actuators 3-5 are connected to the corresponding bridging bars 3-4 and drive the movement of the bridging bars 3-4, and the bridging bars 3-4 are connected to the different-phase single-phase busbars 1-1 of the inter-segment small busbar 1 and the rear-segment small busbar 1 to energize and disconnect the power. The first actuator 3-3 and the second actuator 3-5 of the present invention are telescopic stepping motors or push-pull electromagnets. Through the action of the telescopic stepping motors or push-pull electromagnets, the corresponding inter-segment busbars 3-2 and bridge bars 3-4 are moved. The connection between the first actuator 3-3 and the inter-segment busbars 3-2 is provided with an insulating part, and the connection between the second actuator 3-5 and the bridge bar 3-4 is provided with an insulating part. The actuators can work reliably during the process of connecting the circuit and disconnecting the power.

[0023] See Figures 2 to 5 As shown, the inter-segment busbar 3-2 of the present invention is located at the upper or lower part of the front-segment small busbar 1 and the rear-segment small busbar 1, and the bridging bar 3-4 is located at the lower or upper part of the rear-segment small busbar 1. The inter-segment busbar 3-2 can be arranged at the upper part of the small busbar 1, and the bridging bar 3-4 can be arranged at the lower part; or the bridging bar 3-4 can be arranged at the upper part of the small busbar 1, and the inter-segment busbar 3-2 can be arranged at the lower part.

[0024] See Figure 1 As shown, the inter-segment intelligent monitoring module 3-1 of the present invention is used to monitor the electrical and environmental data of the inter-segment connector 3. The present invention provides three current transformers corresponding to the inter-segment busbars 3-2 on the inter-segment connection box. The inter-segment intelligent monitoring module 3-1 uses an existing intelligent monitoring module. The electrical data of the inter-segment intelligent monitoring module 3-1 includes voltage, current, phase sequence, and harmonic data. It monitors the voltage, current, phase sequence, and harmonics within the inter-segment connector 3, and also monitors the temperature and humidity environment within the inter-segment connection box. The inter-segment intelligent monitoring module 3-1 of the present invention has an over-limit alarm function, which will alarm on-site when the inter-segment connector 3 exceeds the limit. The monitoring data of the inter-segment connector 3 of the present invention is transmitted to the intelligent monitoring unit 5, which receives the action signals of the first actuator 3-3 and the second actuator 3-5 sent by the intelligent monitoring unit 5, and controls the extension and retraction of the first actuator 3-3 and the second actuator 3-5.

[0025] See Figure 1As shown, the intelligent monitoring unit 5 of the present invention communicates with the intelligent monitoring module 4-3 of the starting box, the intelligent monitoring module 2-4 of the plug-in box and the intelligent monitoring module 3-1 between sections through the Modbus protocol or the 485 interface, and receives the monitoring data of the starting box 4, the monitoring data of the inter-section connector 3 and the monitoring data of the plug-in box 2 in real time. The intelligent monitoring unit 5 adopts a touch screen logic controller. The database of the intelligent monitoring unit 5 contains the abnormal and alarm fault data of the machine room fault scene and the corresponding solution. It has the function of automatically analyzing and judging the fault. The intelligent monitoring unit 5 will receive the monitoring data and the intelligent monitoring data. The fault data in the database within unit 5 is matched, the fault data of the distribution system is analyzed and judged, and the fault point is located. Once an abnormality or alarm occurs, the fault phase at the fault section can be accurately and quickly located, and the solution in the database can be automatically matched. The cause and corresponding solution measures are also given in a targeted manner, and corresponding signals are sent to the intelligent monitoring module 4-3 of the starting box, the intelligent monitoring module 2-4 of the plug-in box, and the intelligent monitoring module 3-1 between sections. The display screen of the intelligent monitoring unit 5 displays the various monitoring data on the spot, alarms the fault point, and uploads the fault data to the background dynamic environment system 6. The intelligent monitoring unit 5 of the present invention can provide display, alarm, and fault data upload, and can be queried and understood through the touch screen. It can automatically generate corresponding reports as needed to analyze the power consumption and status of the weekly, ten-day, monthly, quarterly, and annual periods, making it convenient for maintenance personnel to conduct daily inspections of the power consumption status of the computer room cabinets and evaluate the operation status. The intelligent monitoring unit 5 of the present invention is installed at the end of each group of cabinets and embedded in the side panel of the end cabinet, which is convenient for observation and on-duty inspection. Once an abnormality or alarm occurs, the intelligent monitoring unit 5 uploads the fault data to the background dynamic environment system 6. The background dynamic environment system of the present invention communicates with handheld portable devices, and the background dynamic environment system 6 communicates with mobile phone APP, mobile phones, tablets, etc. The alarm and abnormal fault data of the distribution system are sent to the mobile phone APP, mobile phone text messages, and mobile phone calls through the background dynamic environment system 6, and are pushed to relevant personnel in time to solve the corresponding faults.

[0026] See Figures 1 to 5 As shown, the present invention provides a control method based on a small bus intelligent power distribution system for a data center, which is carried out in the following steps: During normal operation, the starting box 4 is connected to an external power supply, and each section of the busbar 1 is connected and energized through the inter-section connector 3. Each plug-in box 2 draws power from the corresponding section of the busbar 1 and transmits the electrical energy to the power distribution unit of the corresponding cabinet. The intelligent monitoring module 4-3 of the starting box uploads the electrical data and environmental data in the starting box 4 to the intelligent monitoring unit 5 in real time, and the intelligent monitoring modules 2-4 of each plug-in box upload the electrical data and environmental data of the plug-in box 2 to the intelligent monitoring unit 5 in real time. The intelligent monitoring modules 3-1 between sections upload the electrical data and environmental data of the plug-in box 2 to the intelligent monitoring unit 5 in real time.

[0027] In the present invention, when a single-phase or two-phase fault occurs in the small busbar 1, the single-phase circuit breaker 4-2 of the faulty phase is short-circuited and disconnected, and the other single-phase circuit breakers 4-2 maintain normal power supply. The intelligent monitoring unit 5 matches the received monitoring data with the fault data of the intelligent monitoring unit 5, analyzes and judges the faulty phase, and locates the faulty section of the small busbar 1. The first actuator 3-3 of the corresponding faulty phase is sent to the front inter-segment connector 3 and the corresponding inter-segment intelligent monitoring module 3-1 on the inter-segment connector 3 at the faulty section. The second actuator 3-3 of the corresponding faulty phase is sent to the front inter-segment connector 3 and the corresponding inter-segment intelligent monitoring module 3-1 on the inter-segment connector 3 at the faulty section. The actuator 3-5 receives the signal, and each first actuator 3-3 drives the corresponding inter-section busbar 3-2 to disconnect from the single-phase busbar in front of the affected phase and the single-phase busbar 1-1 of the fault phase at the fault section and the single-phase busbar 1-1 of the affected phase in the rear section, isolating the plug-in box with the fault phase on the fault section. The second actuator 3-5 then drives the corresponding bridging bar 3-4 to connect and energize the inter-section busbar and the single-phase busbar of the affected phase, maintaining the normal operation of other plug-in boxes on the non-fault phase on the small busbar fault section and the plug-in box on the small busbar affected phase.

[0028] See Figure 4 、 5 As shown, when a fault occurs on the B-phase busbar in the a-section busbar, the B-phase single-phase circuit breaker 4-2 trips, the B-phase busbar in the a-section busbar is de-energized, and the first actuator 3-3 and the second actuator 3-5 in the front inter-section connector and the inter-section connector at the fault section are actuated, the inter-section connector and the inter-section connector at the fault section are disconnected from the same fault phase and bridge the same out-of-phase, the A-phase busbar and the C-phase busbar are energized, and the first actuator 3-3 drives the B-phase inter-section busbar 3-2 to disconnect from the a-section busbar. The power is cut off for the B-phase busbar and the B-phase busbar of the b-section small busbar, and the faulty plug-in box 2 on the B-phase busbar on the a-section small busbar is isolated. The second actuator 3-5 then drives the bridging bar 3-4 to connect and energize with the B-phase inter-section busbar 3-2 and the A-phase busbar on the b-section small busbar, or controls the bridging bar 3-4 to connect and energize with the B-phase inter-section busbar and the C-phase busbar of the b-section small busbar, so as to maintain the normal operation of other plug-in boxes 2 on the non-fault phase on the fault section of the small busbar 1 and the plug-in boxes 2 on the affected phase of the small busbar 1.

[0029] In the present invention, after the fault phase of the plug-in box 2 is eliminated, the intelligent monitoring unit 5 sends a first actuator 3-3 connection signal and a second actuator 3-5 disconnection signal corresponding to the fault phase to the inter-segment intelligent monitoring module 3-1. The second actuator 3-5 drives the corresponding bridging bar 3-4 to disconnect the inter-segment busbar 3-2 and the single-phase busbar 1-1 of the affected phase from the power supply. The first actuator 3-3 then drives the corresponding inter-segment busbar 3-2 to connect with the single-phase busbar of the affected phase, the single-phase busbar of the fault-free phase, and the single-phase busbar of the same phase in the subsequent section. Figure 2 、 3As shown, the second actuator 3-5 drives the bridging bar 3-4 to disconnect from the B-phase inter-section busbar and the A-phase busbar of the b-section small busbar, or the second actuator 3-5 drives the bridging bar 3-4 to disconnect from the B-phase inter-section busbar and the C-phase busbar of the b-section small busbar, so that the bridging bar cannot conduct electricity after it is reset. The first actuator 3-3 drives the B-phase inter-section busbar to connect and energize the B-phase busbar of the a-section small busbar and the B-phase busbar of the b-section small busbar. The intelligent monitoring module 4-3 of the starting box and the intelligent monitoring module 2-4 of the plug-in box receive the fault phase release signal, and the corresponding single-phase circuit breaker 4-2 automatically resumes power supply, and the corresponding micro circuit breaker 2-3 on the plug-in box 2 automatically resumes power supply.

[0030] In the present invention, when a single-phase fault occurs in the small busbar 1, the intelligent monitoring unit 5 compares the loads of the two energized single-phase busbars 1-1, and the bridging bus 3-4 is connected to the inter-segment busbar 3-2 supplying small load power and the single-phase busbar 1-1 of the affected phase and energizes them.

[0031] The display screen of the intelligent monitoring unit 5 of the present invention displays various monitoring data locally, issues an alarm for the fault point, and uploads the fault data to the background dynamic environment system 6. The background dynamic environment system 6 communicates with the handheld portable device and pushes the fault information to the relevant personnel. The background dynamic environment system 6 sends alarms and abnormal fault information to the mobile phone APP, or sends SMS messages of alarms and abnormal fault information to the mobile phone. Important matters can be automatically notified to the operation and maintenance personnel via mobile phone, so that the operation and maintenance personnel can quickly troubleshoot the fault point. After the fault is eliminated, the plug-in box 2 is automatically restored to normal operation after the fault is eliminated, minimizing the risk of cabinet power outages and providing a strong guarantee for the continuous power supply of the cabinets in the data center computer room.

Claims

1. A small bus intelligent power distribution system for a data center, characterized by: It includes a start-end box, multiple sections of small busbars for power transmission, inter-section connectors, a plug-in box and an intelligent monitoring unit; The starting box is used to introduce an external power supply and control the on-off operation of the external power supply when entering the small busbar. The starting box includes a starting box body, three current transformers and three single-phase circuit breakers arranged in the starting box body, and an intelligent monitoring module for the starting box. The starting box body is equipped with a PE row, an N row and three single-phase busbars. The three single-phase busbars are respectively introduced into the corresponding single-phase circuit breakers through their respective current transformers; the intelligent monitoring module of the starting box is used to monitor the electrical data and environmental data of the starting box, send the monitoring data of the starting box to the intelligent monitoring unit, and send a fault phase elimination signal to the receiving intelligent monitoring unit, and the corresponding single-phase circuit breaker automatically restores power supply; The plug-in box is used to take power from the corresponding section of the small busbar and transmit it to each cabinet. The plug-in conductive member on the upper part of the plug-in box is electrically connected to the corresponding section of the small busbar. The plug-in box is provided with a micro circuit breaker, an industrial socket and a plug-in box intelligent monitoring module. The plug-in box intelligent monitoring module is used to monitor the electrical data and environmental data of the plug-in box, send the plug-in box monitoring data to the intelligent monitoring unit, and receive the fault phase elimination signal sent by the intelligent monitoring unit, and the corresponding plug-in box automatically restores power supply; The inter-segment connector is used for the electrical connection of two adjacent sections of small busbars, isolating the plug-in box of the faulty phase of the faulty section, and maintaining the normal operation of other plug-in boxes on the non-faulty phase of the faulty section and the plug-in boxes on the phase affected by the small busbar; the inter-segment connector includes an inter-segment connection box and an inter-segment PE row, an inter-segment N row, a busbar isolation and bridging conversion mechanism, an actuator and an inter-segment intelligent monitoring module arranged in the inter-segment connection box, and the two ends of the inter-segment PE row and the inter-segment N row are fixedly connected to the PE row and N row on the corresponding front section small busbar and rear section small busbar; the busbar isolation and bridging conversion mechanism includes three movable inter-segment busbars and a movable bridging row arranged at the rear of the inter-segment busbars, the front and rear sides of the three inter-segment busbars correspond to the single-phase busbars of the same phase corresponding to the front section small busbar and the rear section small busbar, and the The two sides of the bridging bar correspond to the single-phase busbars of different phases between the inter-segment busbar and the rear-segment small busbar; the actuator includes a plurality of first actuators and a plurality of second actuators, the first actuators are connected to the corresponding inter-segment busbars and drive the movement of the inter-segment busbars, and the inter-segment busbars are connected to the same-phase single-phase busbars of the front-segment small busbars and the rear-segment small busbars to be energized, disconnected and de-energized, the second actuators are connected to the corresponding bridging bars and drive the movement of the bridging bars, and the bridging bars are connected to the different-phase single-phase busbars between the inter-segment single-phase busbars and the rear-segment small busbars to be energized, disconnected and de-energized; the inter-segment intelligent monitoring module is used to monitor the electrical data and environmental data of the inter-segment connectors, send the monitoring data of the inter-segment connectors to the intelligent monitoring unit, receive the first actuator action signal and the second actuator action signal sent by the intelligent monitoring unit, and control the telescopic action of the first actuator and the second actuator; The intelligent monitoring unit communicates with the intelligent monitoring module of the starting box, the intelligent monitoring module of the plug-in box and the intelligent monitoring module between sections through the Modbus protocol or the 485 interface, receives the monitoring data of the starting box, the monitoring data of the inter-section connector and the monitoring data of the plug-in box in real time, matches the received monitoring data with the fault data in the database of the intelligent monitoring unit, analyzes and judges the fault data of the power distribution system, locates the fault point, and sends corresponding signals to the intelligent monitoring module of the starting box, the intelligent monitoring module of the plug-in box and the intelligent monitoring module between sections. The display screen of the intelligent monitoring unit displays the monitoring data on the spot, alarms the fault point, and uploads the fault data to the background dynamic ring system.

2. The small bus intelligent power distribution system for a data center according to claim 1 is characterized in that: The inter-segment busbar is located at the upper or lower part of the front small busbar and the rear small busbar, the bridging bar is located at the lower or upper part of the rear small busbar, and the connecting part between the first actuator and the inter-segment busbar is provided with an insulating part, and the connecting part between the second actuator and the bridging bar is provided with an insulating part.

3. The small bus intelligent power distribution system for a data center according to claim 1 or 2, characterized in that: The first actuator and the second actuator are telescopic stepping motors or push-pull electromagnets.

4. The small bus intelligent power distribution system for a data center according to claim 1 is characterized in that: The intelligent monitoring unit is installed on the cabinet at the end.

5. The small bus intelligent power distribution system for a data center according to claim 1 is characterized in that: The electrical data of the inter-segment intelligent monitoring module includes voltage, current, phase sequence and harmonic wave data, and the inter-segment intelligent monitoring module has an over-limit alarm function.

6. The small bus intelligent power distribution system for a data center according to claim 1 is characterized in that: The background dynamic ring system communicates with the handheld portable device.

7. A control method based on a small bus intelligent power distribution system for a data center, characterized in that: Follow the steps below, The start-end box is connected to an external power supply, and each section of the small busbar is connected and powered through the inter-section connector. Each plug-in box takes power from the small busbar of the corresponding section and transmits the power to the power distribution unit of the corresponding cabinet. The intelligent monitoring module of the start-end box uploads the electrical data and environmental data in the start-end box to the intelligent monitoring unit in real time, and the intelligent monitoring modules of each plug-in box upload the electrical data and environmental data of the plug-in box to the intelligent monitoring unit in real time. The intelligent monitoring modules between each section upload the electrical data and environmental data of the plug-in box to the intelligent monitoring unit in real time; When a single-phase or two-phase fault occurs in the small busbar, the single-phase circuit breaker of the faulty phase is short-circuited or disconnected, and other single-phase circuit breakers maintain normal power supply. The intelligent monitoring unit matches the received monitoring data with the fault data in the intelligent monitoring unit database, analyzes and judges the faulty phase, and locates the faulty section of the small busbar. The first actuator disconnection signal and the second actuator connection signal of the corresponding faulty phase are sent to the inter-segment intelligent monitoring module corresponding to the front inter-segment connector and the inter-segment connector at the faulty section. Each first actuator drives the corresponding inter-segment busbar to detach from the single-phase busbar in front of the affected phase, the single-phase busbar of the faulty phase at the faulty section, and the single-phase busbar of the affected phase at the rear section, and isolates the plug-in box with the faulty phase on the faulty section. The second actuator then drives the corresponding bridging bar to disconnect from the power supply. The inter-section busbar and the single-phase busbar of the affected phase are connected and energized to keep other plug-in boxes on the non-fault phase of the small busbar fault section and the plug-in boxes on the affected phase of the small busbar operating normally; after the fault phase of the plug-in box is cleared, the intelligent monitoring unit sends the first actuator connection signal and the second actuator disconnection signal of the corresponding fault phase to the inter-section intelligent monitoring module, and the second actuator drives the corresponding bridging bar to disconnect the inter-section busbar and the single-phase busbar of the affected phase from the power supply, and the first actuator then drives the corresponding inter-section busbar to connect with the single-phase busbar of the affected phase, the single-phase busbar of the fault-free phase, and the single-phase busbar of the same phase in the rear section; the intelligent monitoring module of the starting box and the intelligent monitoring module of the plug-in box receive the fault phase clearance signal, and the corresponding single-phase circuit breaker automatically restores power supply, and the micro-circuit breaker on the corresponding plug-in box automatically restores power supply; The display screen of the intelligent monitoring unit displays various monitoring data on site, alarms the fault points and uploads the fault data to the background dynamic environment system. The background dynamic environment system communicates with the handheld portable device to send alarms and abnormal fault information.

8. The control method based on the small bus intelligent power distribution system for a data center according to claim 1 is characterized in that: When a single-phase fault occurs in the small busbar, the intelligent monitoring unit compares the loads of the two energized single-phase busbars, and the bridge busbar is connected to the inter-segment busbar supplying small load power and the single-phase busbar of the affected phase and energized.

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