Old data machine room power transformation and distribution system and emergency power supply capacity increasing transformation method

Abstract

The invention relates to the technical field of data machine room power transformation and distribution systems and emergency power supplies, in particular to an old data machine room power transformation and distribution system which comprises a power distribution equipment unit, a network communication unit and a terminal control unit, and the power distribution equipment unit and the terminal control unit are both in signal connection with the network communication unit. According to the emergency power supply capacity-increasing transformation method, emergency power supply capacity-increasing transformation is carried out on an old data machine room power transformation and distribution system, on one hand, the requirement for design specifications can be met, on the other hand, the requirement for improving the power supply level can be met, and meanwhile the economic rationality of capacity-increasing transformation is met; the power failure frequency of original equipment in the transformation process is reduced to the maximum extent, old original equipment is utilized to the maximum extent, investment is reduced as much as possible, and important electric power parameters such as voltage and current are accurately obtained in real time by adding a plurality of intelligent monitoring devices to an old data machine room power transformation and distribution system; and operation and maintenance personnel can find potential power abnormity at the first time.

Description

Technical Field

[0001] The present invention relates to the technical field of power transformation and distribution system and emergency power supply in a data room, and in particular to a method for capacity expansion and reconstruction of a power transformation and distribution system and an emergency power supply in an old data room. Background Art

[0002] With the advancement of China Telecom's network transformation and the introduction of technologies such as network cloudification, traditional communication rooms, as important infrastructure for providing telecommunications network services, must adapt to the situation and evolve in sync. At the same time, with the deepening of network reconstruction, old communication equipment such as PSTN has been withdrawn from the network one after another, and a large number of traditional communication rooms have become idle. The supporting infrastructure resources such as electricity and diesel high-voltage cabinets are expected to be activated. Against this background, in order to meet the needs of network reconstruction, network element cloudification and activate the idle room resources that have been withdrawn from the network, the DC reconstruction of data room infrastructure has become imperative.

[0003] The power distribution system of the existing data room usually has only one 10kV power supply and a diesel high-voltage cabinet as backup power supplies. There is a possibility of simultaneous failure of one mains power supply and one diesel engine. With the continuous increase and upgrading of equipment in the data room, the rated power of the original equipment may not meet the current power load demand, so it cannot meet the power supply reliability requirements of the current data room. At the same time, most of the old power transformation and distribution systems are not equipped with complete intelligent monitoring equipment, and cannot accurately obtain important power parameters such as voltage and current in real time. It is difficult for operation and maintenance personnel to discover potential power anomalies in the first time, and they often know about it after the failure occurs, resulting in passive fault handling.

[0004] In view of this, the present application proposes a method for increasing the capacity of an old data center power distribution system and an emergency power supply. Summary of the invention

[0005] The purpose of the present invention is to provide a power distribution system for an old data center and a method for increasing the capacity of an emergency power supply to solve the above problems.

[0006] To achieve the above object, the present invention provides the following technical solutions: An old data center power distribution system includes a power distribution device unit, a network communication unit and a terminal control unit, wherein the power distribution device unit and the terminal control unit are both connected to the network communication unit by signal: The power distribution equipment unit is used to detect the status information of the high-voltage cabinet, measure the power parameters of each branch through the intelligent sensor, and transmit each detection data to the terminal control unit through the network communication unit; The network communication unit is used to realize data transmission between various unit modules in the system; The terminal control unit is used to receive high-voltage cabinet status information data, analyze and judge the high-voltage cabinet status information data through a microcontroller, control the opening or closing of switches in the system, and automatically judge whether the power of each branch is abnormal. When an abnormal situation occurs, a fault alarm is issued in time to realize remote control function.

[0007] Furthermore, the power distribution equipment unit includes a high-voltage cabinet detection module, a sensor module and a harmonic monitoring module: The high-voltage cabinet detection module is connected to the high-voltage cabinet to detect the status information of the high-voltage cabinet and transmit the status information of the high-voltage cabinet to the terminal control unit in real time; The sensor module measures the power consumption, voltage and current parameters of each branch through intelligent sensors, and transmits the measured data to the terminal control unit in real time; The harmonic monitoring module monitors the harmonic components in the power distribution system in real time through a harmonic monitor, and transmits the monitoring data to the terminal control unit in real time.

[0008] Furthermore, the status information of the high-voltage cabinet includes a current signal, a voltage signal and an overfrequency signal.

[0009] Furthermore, the terminal control unit includes a microcontroller module, a switch control module, a power monitoring module, a power quality monitoring module, a fault alarm module and a remote control module: The microcontroller module is used to receive the high-voltage cabinet status information data from the high-voltage cabinet detection module, analyze and judge the status information through the microcontroller, and transmit the judgment command to the switch control module; The switch control module is used to receive the judgment command of the microcontroller module and control the opening or closing of the switch in the system; The power monitoring module is used to receive the measurement data of each branch from the sensor module and automatically determine whether the power of each branch is abnormal; The power quality monitoring module is used to receive the monitoring data of the harmonic monitoring module and analyze the power quality and power reliability status within the entire power distribution system; The fault alarm module configures the alarm function for the necessary metering objects according to the specific conditions of the project, receives the analysis data of the power monitoring module and the power quality monitoring module in real time, and judges whether the measured value exceeds the limit or the power quality is abnormal according to the set value. When it is judged that an abnormal situation occurs, it will promptly give a voice prompt and notify the relevant personnel of the alarm information via SMS, and support the set value adjustment function; The remote control module receives and reads and writes the analysis data of the microcontroller module, the switch control module, the power monitoring module and the power quality monitoring module through the terminal controller to realize the remote control function.

[0010] Furthermore, the remote control module includes a data acquisition module, a data transmission module and a data reading and writing module: The data acquisition module collects data from the microcontroller module, the switch control module, the power monitoring module and the power quality monitoring module through a data collector; The data transmission module receives the data from the data acquisition module through the routing switch, and transmits the received data to the server; The data reading and writing module reads and writes data in the server of the data transmission module through the terminal controller.

[0011] Furthermore, the terminal control unit also includes a user authority module, a human-computer interaction module, an electric energy statistics report module and a data forwarding interface module: The user authority module is used to define the login name, password and operation authority of users of different levels; The human-machine interaction module intuitively displays the distribution of the power distribution lines in the form of a power distribution system diagram through a human-machine interface, and at the same time displays the remotely collected electrical parameter information of each circuit in real time in the system interface; The electric energy statistical report module generates a statistical analysis report on the power consumption of each distribution node in the system, the incoming line power consumption and the power consumption of each branch circuit according to the data information received by the terminal control unit and the requirements of itemized metering, and provides a comprehensive electric energy and demand statistical report function; The data forwarding interface module has access functions for multiple standard interfaces and protocols, and supports the system interface to share data with other systems.

[0012] A method for increasing the capacity of an emergency power supply of an old data center power distribution system comprises the following steps: S1. Equipment evaluation and update: Conduct a comprehensive evaluation of existing transformers, distribution cabinets, switch cabinets and distribution equipment, check the operating status of the equipment, and replace equipment that has severely degraded performance, is severely aged, and has excessively high maintenance costs; S2. Line reconstruction: Replan the route and type of cable lines based on the calculation of power load after capacity increase; S3. Introduce intelligent sensors and microcontrollers to achieve real-time monitoring and remote control of the power distribution system, while expanding or replacing the emergency high-voltage cabinet, upgrading the uninterruptible power supply UPS system, and optimizing the emergency power switching system.

[0013] Furthermore, in step S3, the following steps are included: S31. Intelligent upgrade of power distribution system: Use intelligent sensors to measure the power consumption, voltage and current parameters of each branch, detect power anomalies in a timely manner, and use microcontrollers to realize remote operation of switches and fault alarm functions, so as to achieve real-time monitoring and remote control of the power distribution system; S32. Expansion or replacement of emergency high-voltage cabinets: Assess whether the capacity of the existing emergency high-voltage cabinets can meet the operation requirements of key equipment in the data center during a power outage. If the capacity is insufficient, expand and renovate the existing high-voltage cabinets, and check and ensure that all performance of the high-voltage cabinets is normal. S33, Uninterruptible Power Supply (UPS) system upgrade: Check the performance and capacity of the battery pack and the power of the UPS host, and replace the aging battery pack and the UPS host with insufficient power; S34. Optimization of emergency power supply switching system: Check the performance and switching time parameters of the switching switch, replace the switching switch with poor performance, and set reasonable switching logic; S35. The high-voltage cabinets of the original high-voltage distribution room are the incoming cabinet, PT cabinet, metering cabinet, isolation cabinet and outgoing cabinet. According to the capacity configuration after the capacity increase, the original high-voltage incoming cabinet, outgoing cabinet and metering cabinet are renovated, and all the original high-voltage cabinets are added with secondary core phase holes, and the original high-voltage cabinet busbars are not replaced; S36. Newly build segmented isolation cabinets and high-voltage cabinets corresponding to bus section II in high-voltage power distribution. The high-voltage cabinets corresponding to bus section II are one incoming cabinet, one PT cabinet, one metering cabinet and one outgoing cabinet, and are connected to bus section I. After the transformation, the high-voltage system wiring method is a single bus segmented wiring method, designed according to two 10kV power supply lines. The two power supplies work at the same time and automatically switch between each other as backup. There are "three locks and two keys" between the two incoming switches and the bus tie switch, and mechanical and electrical interlocks are set. Under any circumstances, only two of them can be in the closed state; S37. Convert a switch from the high-voltage cabinet to the low-voltage cabinet and connect it to the newly built low-voltage system. Install an ATS cabinet in the newly built low-voltage cabinet and reserve a switch with a capacity of 1600A in the newly built low-voltage system in preparation for the later replacement of the original transformer.

[0014] Beneficial effects of the present invention: 1. In the present invention, the emergency power supply capacity expansion and transformation method is used to expand the capacity of the old data center power distribution system. On the one hand, it can meet the requirements of the design specifications, and on the other hand, it can meet the requirements of the improved power supply level. At the same time, it can meet the economic rationality of the capacity expansion and transformation, minimize the number of power outages of the original equipment during the transformation process, maximize the use of the original equipment, and reduce investment as much as possible.

[0015] 2. In the present invention, by designing an old data room power transformation and distribution system, the power distribution equipment unit uses a high-voltage cabinet detection module, a sensor module and a harmonic monitoring module to detect in real time the status information of the high-voltage cabinet, the power parameters of each branch, and the harmonic component information in the distribution system. The terminal control unit receives the information data of the distribution equipment unit, analyzes and judges the high-voltage cabinet status information data through a microcontroller, controls the opening or closing of switches in the system, and automatically judges whether the power of each branch is abnormal through the power monitoring module. The power quality and power reliability status within the entire distribution system are analyzed through the power quality monitoring module. When an abnormal situation occurs, the fault alarm module promptly provides information voice prompts. The system acquires important power parameters such as voltage and current in real time and accurately by adding multiple intelligent monitoring devices. When an abnormality occurs in the distribution system, the operation and maintenance personnel can discover potential power abnormalities in the first place. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a system schematic diagram of an old data center power distribution system of the present invention; Figure 2 This is a module relationship diagram of an old data center power transformation and distribution system of the present invention.

[0017] In the figure: 1. power distribution equipment unit; 2. network communication unit; 3. terminal control unit; 11. high-voltage cabinet detection module; 12. sensor module; 13. harmonic monitoring module; 30. microcontroller module; 31. switch control module; 32. power monitoring module; 33. power quality monitoring module; 34. fault alarm module; 35. remote control module; 36. user authority module; 37. human-computer interaction module; 38. power statistical report module; 39. data forwarding interface module; 351. data acquisition module; 352. data transmission module; 353. data reading and writing module. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figure 1 and Figure 2This design proposes an implementation method, a power distribution system for an old data center, including a power distribution equipment unit 1, a network communication unit 2 and a terminal control unit 3. The power distribution equipment unit 1 and the terminal control unit 3 are both connected to the network communication unit 2 by signal: the power distribution equipment unit 1 is used to detect the status information of the high-voltage cabinet, measure the power parameters of each branch through an intelligent sensor, and transmit each detection data to the terminal control unit 3 through the network communication unit 2. The power distribution equipment unit 1 includes a high-voltage cabinet detection module 11, a sensor module 12 and a harmonic monitoring module 13: the high-voltage cabinet detection module 11 is connected to the high-voltage cabinet to detect the status information of the high-voltage cabinet, and transmit the status information of the high-voltage cabinet to the terminal control unit 3 in real time. The status information of the high-voltage cabinet includes Current signal, voltage signal and over-frequency signal; the sensor module 12 measures the power consumption, voltage and current parameters of each branch through intelligent sensors, and transmits the measured data to the terminal control unit 3 in real time; the harmonic monitoring module 13 monitors the harmonic components in the power distribution system in real time through a harmonic monitor, and transmits the monitoring data to the terminal control unit 3 in real time; the network communication unit 2 is used to realize data transmission between each unit module in the system; the terminal control unit 3 is used to receive the high-voltage cabinet status information data, analyze and judge the high-voltage cabinet status information data through the microcontroller, control the opening or closing of the switch in the system, and automatically judge whether the power of each branch is abnormal, and promptly issue a fault alarm when an abnormal situation occurs, so as to realize the remote control function; The terminal control unit 3 includes a microcontroller module 30, a switch control module 31, a power monitoring module 32, a power quality monitoring module 33, a fault alarm module 34, a remote control module 35, a user authority module 36, a human-computer interaction module 37, a power statistics report module 38 and a data forwarding interface module 39: The microcontroller module 30 is used to receive the high-voltage cabinet status information data from the high-voltage cabinet detection module 11, analyze and judge the status information through the microcontroller, and transmit the judgment command to the switch control module 31; The switch control module 31 is used to receive the judgment command of the microcontroller module 30 and control the opening or closing of the switch in the system; The power monitoring module 32 is used to receive the measurement data of each branch from the sensor module 12 and automatically determine whether the power of each branch is abnormal; The power quality monitoring module 33 is used to receive the monitoring data of the harmonic monitoring module 13 and analyze the power quality and power reliability status within the entire power distribution system; The fault alarm module 34 configures the alarm function for the necessary metering objects according to the specific conditions of the project, receives the analysis data of the power monitoring module 32 and the power quality monitoring module 33 in real time, and judges whether the measured value exceeds the limit or the power quality is abnormal according to the set value. When it is judged that an abnormal situation occurs, it will promptly give a voice prompt and notify the relevant personnel of the alarm information by SMS, and support the set value adjustment function; The remote control module 35 receives and reads and writes the analysis data of the microcontroller module 30, the switch control module 31, the power monitoring module 32 and the power quality monitoring module 33 through the terminal controller to realize the remote control function. The remote control module 35 includes a data acquisition module 351, a data transmission module 352 and a data reading and writing module 353: the data acquisition module 351 collects the data of the microcontroller module 30, the switch control module 31, the power monitoring module 32 and the power quality monitoring module 33 through the data acquisition device; the data transmission module 352 receives the data of the data acquisition module 351 through the routing switch, and transmits the received data to the server; the data reading and writing module 353 reads and writes the data in the server of the data transmission module 352 through the terminal controller; The user authority module 36 is used to define the login name, password and operation authority of users of different levels; The human-machine interaction module 37 intuitively displays the distribution of the power distribution lines in the form of a power distribution system diagram through the human-machine interface, and at the same time displays the remotely collected electrical parameter information of each circuit in real time in the system interface; The power statistics report module 38 generates a statistical analysis report on the power consumption of each distribution node in the system, the incoming line power consumption and the power consumption of each branch circuit according to the data information received by the terminal control unit 3 and the requirements of the sub-item metering, and provides a comprehensive power and demand statistical report function; The data forwarding interface module 39 has access functions for multiple standard interfaces and protocols, and supports data sharing between the system interface and other systems.

[0020] Example 2: Please refer to Figure 1 This design proposes an implementation method, a method for increasing the capacity of an emergency power supply for an old data center power distribution system, including the following steps: S1. Equipment evaluation and update: Conduct a comprehensive evaluation of existing transformers, distribution cabinets, switch cabinets and distribution equipment, check the operating status of the equipment, and replace equipment that has severely degraded performance, is severely aged, and has excessively high maintenance costs; S2. Line reconstruction: Replan the route and type of cable lines based on the calculation of power load after capacity increase; S3, introduce intelligent sensors and microcontrollers to achieve real-time monitoring and remote control of the power distribution system, and at the same time expand or replace the emergency high-voltage cabinet, upgrade the uninterruptible power supply UPS system, and optimize the emergency power switching system, including the following steps: S31. Intelligent upgrade of power distribution system: Use intelligent sensors to measure the power consumption, voltage and current parameters of each branch, detect power anomalies in a timely manner, and use microcontrollers to realize remote operation of switches and fault alarm functions, so as to achieve real-time monitoring and remote control of the power distribution system; S32. Expansion or replacement of emergency high-voltage cabinets: Assess whether the capacity of the existing emergency high-voltage cabinets can meet the operation requirements of key equipment in the data center during a power outage. If the capacity is insufficient, expand and renovate the existing high-voltage cabinets, and check and ensure that all performance of the high-voltage cabinets is normal. S33, Uninterruptible Power Supply (UPS) system upgrade: Check the performance and capacity of the battery pack and the power of the UPS host, and replace the aging battery pack and the UPS host with insufficient power; S34. Optimization of emergency power supply switching system: Check the performance and switching time parameters of the switching switch, replace the switching switch with poor performance, and set reasonable switching logic; S35. The high-voltage cabinets of the original high-voltage distribution room are the incoming cabinet, PT cabinet, metering cabinet, isolation cabinet and outgoing cabinet. According to the capacity configuration after the capacity increase, the original high-voltage incoming cabinet, outgoing cabinet and metering cabinet are renovated, and all the original high-voltage cabinets are added with secondary core phase holes, and the original high-voltage cabinet busbars are not replaced; S36. Newly build segmented isolation cabinets and high-voltage cabinets corresponding to bus section II in high-voltage power distribution. The high-voltage cabinets corresponding to bus section II are one incoming cabinet, one PT cabinet, one metering cabinet and one outgoing cabinet, and are connected to bus section I. After the transformation, the high-voltage system wiring method is a single bus segmented wiring method, designed according to two 10kV power supply lines. The two power supplies work at the same time and automatically switch between each other as backup. There are "three locks and two keys" between the two incoming switches and the bus tie switch, and mechanical and electrical interlocks are set. Under any circumstances, only two of them can be in the closed state; S37. Convert a switch from the high-voltage cabinet to the low-voltage cabinet and connect it to the newly built low-voltage system. Install an ATS cabinet in the newly built low-voltage cabinet and reserve a switch with a capacity of 1600A in the newly built low-voltage system in preparation for the later replacement of the original transformer.

[0021] In the present invention, the existing power distribution system of the data room usually has only one 10kV power supply and one diesel high-voltage cabinet as backup power supplies, and there is a possibility of simultaneous failure of one mains power and one oil engine, which cannot meet the power supply reliability requirements of the current data room. The present invention comprehensively evaluates the existing transformers, distribution cabinets, and switch cabinet power distribution equipment, checks the operating conditions of the equipment, including the aging degree of the equipment and whether the performance parameters can still meet the current and future power needs of the data room, replaces the equipment with serious performance degradation, serious aging and excessively high maintenance costs, replans the path and selection of the cable line according to the power load calculation after capacity increase, measures the power consumption, voltage and current parameters of each branch through intelligent sensors, and promptly discovers power abnormalities, realizes remote operation of switches and fault alarm functions through microcontrollers, realizes real-time monitoring and remote control of the power distribution system, and simultaneously expands or replaces the emergency high-voltage cabinet, upgrades the uninterruptible power supply UPS system, and optimizes the emergency power switching system; By configuring the capacity after capacity increase, the original high-voltage incoming line cabinet, outgoing line cabinet and metering cabinet are renovated, all the original high-voltage cabinets are increased with secondary core phase holes, the original high-voltage cabinet busbar is not replaced, and new segmented isolation cabinets and high-voltage cabinets corresponding to the II-section busbar are built in the high-voltage power distribution. The high-voltage cabinets corresponding to the II-section busbar are an incoming line cabinet, a PT cabinet, a metering cabinet and an outgoing line cabinet, which are connected to the I-section busbar. After the transformation, the wiring method of the high-voltage system is a single busbar segmented wiring method, which is designed according to two 10kV power supply lines. The two power supplies work at the same time and automatically switch on and off as standby for each other. There are "three locks and two keys" between the two incoming line switches and the bus tie switches, and mechanical and electrical interlocks are set. Under any circumstances, only two of them can be in the closed state. The original transformer and generator are wired in a single busbar segmented manner on the low-voltage side. To supply power to office load and production load, the existing low-voltage system is difficult to transform and cut over, and a new transformer and low-voltage system are needed. Since it is difficult to connect the new low-voltage system to the existing low-voltage system in sections, a switch is transformed from the high-voltage cabinet to the low-voltage cabinet and connected to the new low-voltage system. An ATS cabinet is installed in the new low-voltage cabinet, and a switch with a capacity of 1600A is reserved in the new low-voltage system for later replacement of the original transformer. Through the above method, the old data room power distribution system is transformed into an emergency power supply capacity increase, which can meet the requirements of the design specifications and the requirements of the power supply level improvement, and at the same time meet the economic rationality of the capacity increase and transformation, minimize the number of power outages of the original equipment during the transformation process, maximize the use of the original equipment, and minimize investment as much as possible. At the same time, by designing the old data room power distribution system, including the power distribution equipment unit 1, the network communication unit 2 and the terminal control unit 3, the power distribution equipment unit 1 detects the status information of the high-voltage cabinet, the power parameters of each branch, and the harmonic component information in the distribution system in real time through the high-voltage cabinet detection module 11, the sensor module 12 and the harmonic monitoring module 13, and transmits the above monitoring information to the terminal control unit 3 in real time; the terminal control unit 3 receives the information data of the power distribution equipment unit 1, analyzes and judges the high-voltage cabinet status information data through the microcontroller, controls the opening or closing of the switch in the system, and automatically judges whether the power of each branch is Abnormality, the power quality and power reliability status of the entire distribution system are analyzed through the power quality monitoring module 33. When an abnormal situation occurs, the fault alarm module 34 determines whether the measured value exceeds the limit or the power quality is abnormal according to the set value. When an abnormal situation is determined, a voice prompt is given in time, and the alarm information is notified to relevant personnel via SMS. At the same time, the remote control function can be realized through the remote control module 35; the system increases multiple intelligent monitoring devices to obtain important power parameters such as voltage and current in real time and accurately. When an abnormality occurs in the distribution system, the operation and maintenance personnel can discover potential power abnormalities in the first time.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An old data center power distribution system, characterized in that: The invention comprises a power distribution device unit (1), a network communication unit (2) and a terminal control unit (3), wherein the power distribution device unit (1) and the terminal control unit (3) are both connected to the network communication unit (2) by signals: The power distribution equipment unit (1) is used to detect status information of the high-voltage cabinet, measure the electric energy parameters of each branch through an intelligent sensor, and transmit each detection data to the terminal control unit (3) through a network communication unit (2); The network communication unit (2) is used to realize data transmission between various unit modules in the system; The terminal control unit (3) is used to receive high-voltage cabinet status information data, analyze and judge the high-voltage cabinet status information data through a microcontroller, control the opening or closing of switches in the system, and automatically judge whether the power of each branch is abnormal. When an abnormal situation occurs, a fault alarm is issued in time to realize a remote control function.

2. The old data center power distribution system according to claim 1, characterized in that: The power distribution equipment unit (1) comprises a high-voltage cabinet detection module (11), a sensor module (12) and a harmonic monitoring module (13): The high-voltage cabinet detection module (11) is connected to the high-voltage cabinet and is used to detect status information of the high-voltage cabinet, and transmit the status information of the high-voltage cabinet to the terminal control unit (3) in real time; The sensor module (12) measures the power consumption, voltage and current parameters of each branch through an intelligent sensor, and transmits the measured data to the terminal control unit (3) in real time; The harmonic monitoring module (13) monitors the harmonic components in the power distribution system in real time through a harmonic monitor, and transmits the monitoring data to the terminal control unit (3) in real time.

3. The old data center power transformation and distribution system according to claim 2 is characterized in that: The status information of the high-voltage cabinet includes a current signal, a voltage signal and an over-frequency signal.

4. The old data center power distribution system according to claim 3, characterized in that: The terminal control unit (3) comprises a microcontroller module (30), a switch control module (31), an electric energy monitoring module (32), an electric energy quality monitoring module (33), a fault alarm module (34) and a remote control module (35): The microcontroller module (30) is used to receive high-voltage cabinet status information data from the high-voltage cabinet detection module (11), analyze and judge the status information through the microcontroller, and transmit the judgment command to the switch control module (31); The switch control module (31) is used to receive a judgment command from the microcontroller module (30) and control the opening or closing of a switch in the system; The electric energy monitoring module (32) is used to receive the measurement data of each branch from the sensor module (12), and automatically determine whether the electric power of each branch is abnormal; The power quality monitoring module (33) is used to receive monitoring data from the harmonic monitoring module (13) and analyze the power quality and power reliability status within the entire power distribution system; The fault alarm module (34) configures an alarm function for necessary metering objects according to specific conditions of the project, receives analysis data from the power monitoring module (32) and the power quality monitoring module (33) in real time, and determines whether the measured value exceeds the limit or the power quality is abnormal according to the set value. When it is determined that an abnormal situation occurs, a voice prompt is given in time, and the alarm information is notified to relevant personnel via SMS, and the set value adjustment function is supported; The remote control module (35) receives and reads and writes analysis data of the microcontroller module (30), the switch control module (31), the power monitoring module (32) and the power quality monitoring module (33) through the terminal controller, thereby realizing a remote control function.

5. The old data center power transformation and distribution system according to claim 4 is characterized in that: The remote control module (35) comprises a data acquisition module (351), a data transmission module (352) and a data reading and writing module (353): The data acquisition module (351) acquires data from the microcontroller module (30), the switch control module (31), the power monitoring module (32) and the power quality monitoring module (33) through a data acquisition device; The data transmission module (352) receives data from the data acquisition module (351) through the routing switch, and transmits the received data to the server; The data reading and writing module (353) reads and writes data in the server of the data transmission module (352) through the terminal controller.

6. The old data center power distribution system according to claim 5, characterized in that: The terminal control unit (3) further comprises a user authority module (36), a human-computer interaction module (37), an electric energy statistical report module (38) and a data forwarding interface module (39): The user authority module (36) is used to define login names, passwords and operation authorities of users of different levels; The human-machine interaction module (37) intuitively displays the distribution of the power distribution lines in the form of a power distribution system diagram through a human-machine interface, and simultaneously displays the remotely collected electrical parameter information of each circuit in real time in the system interface; The electric energy statistical report module (38) generates a statistical analysis report on the power consumption of each distribution node in the system, the incoming line power consumption and the power consumption of each branch circuit according to the data information received by the terminal control unit (3) and the requirements of itemized metering, thereby providing a comprehensive electric energy and demand statistical report function; The data forwarding interface module (39) has access functions for multiple standard interfaces and protocols, and supports data sharing between the system interface and other systems.

7. A method for increasing the capacity of an emergency power supply of an old data center power distribution system, applicable to the old data center power distribution system according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Equipment evaluation and update: Conduct a comprehensive evaluation of existing transformers, distribution cabinets, switch cabinets and distribution equipment, check the operating status of the equipment, and replace equipment that has severely degraded performance, is severely aged, and has excessively high maintenance costs; S2. Line reconstruction: Replan the route and type of cable lines based on the calculation of power load after capacity increase; S3. Introduce intelligent sensors and microcontrollers to achieve real-time monitoring and remote control of the power distribution system, while expanding or replacing the emergency high-voltage cabinet, upgrading the uninterruptible power supply UPS system, and optimizing the emergency power switching system.

8. The method for increasing the capacity of emergency power supply of the power distribution system of an old data center according to claim 7 is characterized in that: In step S3, the following steps are included: S31. Intelligent upgrade of power distribution system: Use intelligent sensors to measure the power consumption, voltage and current parameters of each branch, detect power anomalies in a timely manner, and use microcontrollers to realize remote operation of switches and fault alarm functions, so as to achieve real-time monitoring and remote control of the power distribution system; S32. Expansion or replacement of emergency high-voltage cabinets: Assess whether the capacity of the existing emergency high-voltage cabinets can meet the operation requirements of key equipment in the data center during a power outage. If the capacity is insufficient, expand and renovate the existing high-voltage cabinets, and check and ensure that all performance of the high-voltage cabinets is normal. S33, Uninterruptible Power Supply (UPS) system upgrade: Check the performance and capacity of the battery pack and the power of the UPS host, and replace the aging battery pack and the UPS host with insufficient power; S34. Optimization of emergency power supply switching system: Check the performance and switching time parameters of the switching switch, replace the switching switch with poor performance, and set reasonable switching logic; S35. The high-voltage cabinets in the original high-voltage distribution room are the incoming cabinet, PT cabinet, metering cabinet, isolation cabinet and outgoing cabinet. According to the capacity configuration after the capacity increase, the original high-voltage incoming cabinet, outgoing cabinet and metering cabinet are renovated, and all the original high-voltage cabinets are added with secondary core phase holes, and the original high-voltage cabinet busbars are not replaced; S36. Newly build segmented isolation cabinets and high-voltage cabinets corresponding to bus section II in high-voltage power distribution. The high-voltage cabinets corresponding to bus section II include one incoming cabinet, one PT cabinet, one metering cabinet and one outgoing cabinet, and connect them to bus section I. After the transformation, the high-voltage system wiring method is single bus segmented wiring method, designed according to two 10kV power supply lines. The two power supplies work at the same time and automatically switch between each other as backup. There are "three locks and two keys" between the two incoming switches and the bus tie switch, and mechanical and electrical interlocks are set. In any case, only two of them can be in the closed state; S37. Convert a switch from the high-voltage cabinet to the low-voltage cabinet and connect it to the newly built low-voltage system. Install an ATS cabinet in the newly built low-voltage cabinet and reserve a switch with a capacity of 1600A in the newly built low-voltage system in preparation for the later replacement of the original transformer.

Images