CN110913645A - All-element micromodule IDC machine room powered by high-voltage direct-current 2N - Google Patents

Abstract

The utility model provides an all-element micromodule IDC computer lab of high voltage direct current 2N power supply, includes 1 modularization AC/DC high frequency switch rectifier, 1 modularization DC/DC voltage conversion equipment, 1 ATS switching and alternating current distribution device, one set of comprehensive perception micromodule control of integration and a plurality of groups IT rack and precision air conditioner, every group the inside two sets of direct current intelligent power distribution unit PDU that all dispose of IT rack. The invention improves the utilization rate of equipment in the links of power supply, refrigeration and the like and reduces the cost of the whole life cycle by reducing the conversion times of electric energy, fully utilizing a high-efficiency refrigeration system of an outdoor natural cold source, optimizing the air flow organization and analyzing the optimal granularity matching, and saves energy (including the energy consumption of IT equipment) by 10-20% in the annual power supply link.

Description

All-element micromodule IDC machine room powered by high-voltage direct-current 2N

Technical Field

The invention relates to an IDC machine room, in particular to an all-element micromodule IDC machine room powered by high-voltage direct-current 2N.

Background

The existing IDC machine rooms all rely on 2 paths of alternating current mains supply for power supply, and electronic equipment including a server actually adopts direct current load, namely, a power supply module configured in the server supplies power through conversion from alternating current to direct current. In order to ensure the power supply reliability and the power supply quality of the data center, the data center needs to be configured with a UPS or HVDC system with a backup storage battery according to the grade of a machine room to meet the uninterrupted power supply requirement of the data center. For the most common UPS use scene of an IDC machine room, the power supply of the whole IT equipment is subjected to an AC-DC-AC power conversion process of a UPS system and an AC-DC power conversion process inside a server, and the large electric energy loss is inevitably brought by multiple times of power supply type installation and conversion, and the use efficiency of the power supply equipment is reduced and the energy consumption is increased.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects in the prior art and provides a high-voltage direct-current 2N power supply all-element micromodule IDC machine room with low energy consumption, low cost and high service efficiency of power supply equipment.

The invention adopts the technical scheme that the high-voltage direct-current 2N power supply full-element micromodule IDC machine room comprises 1 modularized AC/DC high-frequency switch rectifier, 1 modularized DC/DC voltage conversion device, 1 ATS switching and alternating-current power distribution device, a set of integrated comprehensive perception micromodule monitoring and a plurality of groups of IT cabinets and precise air conditioners, wherein two sets of direct-current intelligent power distribution units PDU are arranged in each IT cabinet;

the modular AC/DC high-frequency switching rectifier is connected into a set of the direct-current intelligent power distribution unit;

the modularized DC/DC voltage conversion device is connected into the other set of the DC intelligent power distribution unit to form DC 2N power supply;

the ATS switching and alternating current power distribution device provides power for the precision air conditioner;

the two sets of direct current intelligent power distribution units PDU provide two paths of mutually independent direct currents for each IT device installed in the IT cabinet;

the integrated comprehensive perception micromodule monitoring system comprises various sensors and a monitoring host which are dispersedly installed in an IDC machine room and is used for monitoring the running environment and the working state of various IT equipment, and the monitoring host is installed in an IT cabinet.

Further, the modular AC/DC high-frequency switching rectifier is used for rectifying the input 400V alternating current into 240V direct current, and then outputting the direct current to one set of the direct current intelligent power distribution unit in the IT cabinet.

Further, the modular DC/DC voltage conversion device is used for converting 750V direct current into 240V direct current, and then outputting the direct current to another set of direct current intelligent power distribution unit in the IT cabinet.

And further, the two paths of input 400V alternating current are switched by alternating current distribution and ATS and then output to the precision air conditioner.

Further, the IT rack provides installation mechanical environment and strong and weak electric cable passageway for IT equipment.

Further, still include a set of closed channel subassembly, closed channel subassembly includes both sides end door, horizontal upset skylight, cabinet top wire casing, lighting components and fire control alarm component.

Furthermore, the IT cabinets are arranged in parallel in the machine room, and two precise air conditioners are arranged in each row of the IT cabinets.

Furthermore, the number of the precise air conditioners is four, and the number of the IT cabinets is eighteen.

Compared with the prior art, the invention has the beneficial effects that:

by reducing the frequency of electric energy conversion, fully utilizing a high-efficiency refrigerating system of an outdoor natural cold source, optimizing air flow organization and carrying out optimal granularity matching analysis, the equipment utilization rate of links such as power supply and refrigeration is improved, the life cycle cost is reduced, and the annual power supply link is energy-saving (including IT equipment energy consumption) by 10-20%.

Drawings

FIG. 1 is a schematic plan view of an all-element micromodule IDC machine room powered by high-voltage direct-current 2N;

FIG. 2 is an external power supply diagram of an all-element micromodule IDC machine room supplied with high-voltage direct-current 2N power;

FIG. 3 is a diagram of a power supply and distribution system of an all-element micromodule IDC machine room for high-voltage direct-current 2N power supply;

FIG. 4 is a diagram of a DCIM system monitored and accessed by all-element micromodules of an IDC machine room of a high-voltage direct-current 2N power supply;

fig. 5 is a schematic view of a cabinet top trunking structure.

In the figure: A1-North column first IT rack; A2-North column second IT rack; A3-North column third IT rack; A4-North column fourth IT rack; A5-North column fifth IT rack; A6-North column sixth IT rack; A7-North column seventh IT rack; A8-North column eighth IT rack; A9-North column ninth IT rack; b1-south column first IT rack; b2-south column second IT rack; b3-southern column third IT rack; b4-south column fourth IT rack; b5-southern column fifth IT rack; b6-southern column sixth IT rack; b7-seventh IT rack of southern column; b8-south column eighth IT rack; b9-southern column ninth IT rack; c1-first inter-train air-conditioning indoor unit; c2-indoor set of air conditioner in second row; c3-third row indoor air-conditioning unit; c4-fourth indoor air-conditioner row; D1-DC/DC and Power distribution device; D2-AC/DC and Power distribution devices; e1-west end gate; e2-east end gate; 1-side plate; 2-a supporting plate; 3-partition board.

Detailed Description

The invention is further illustrated by the following figures and examples.

Referring to fig. 1, the number of components in the present embodiment is preferably: the number of the IT cabinets is 18, the two rows are arranged face to face at an interval of 1.2 meters, the size of each cabinet is 600mm, 1200mm, 2200mm and high, and the maximum power density of a single cabinet is 10 kW; the number of the air conditioning units between the fluorine pump direct current frequency conversion row of the natural cold air cooling of refrigerating output 50kW is 4, wherein the indoor unit size is 600mm wide 1200mm deep 2200mm high, and IT rack insertion is averagely arranged in the interior of the micromodule machine room. Comprises a first IT cabinet A1; the north column of the second IT cabinet A2; the north column, the third IT cabinet A3; the north column, fourth IT cabinet A4; the north column, fifth IT cabinet a 5; the north column sixth IT cabinet A6; the north column seventh IT cabinet a 7; the north column eighth IT cabinet A8; the north column ninth IT cabinet A9; the south column of the first IT cabinet B1; a south column of a second IT cabinet B2; the south column, third IT cabinet B3; the south column, fourth IT cabinet B4; the south column, fifth IT cabinet B5; the south column, sixth IT cabinet B6; the south column, seventh IT cabinet B7; the south column, eighth IT cabinet B8; the ninth IT cabinet B9 in the south column and 4 inter-column air conditioners comprise C1 and C2 in the north column; c3 and C4 in southern column. The intelligent monitoring system also comprises a DC/DC and power distribution device D1, an AC/DC and power distribution device D2, east and west side end doors E1 and E2 and monitoring components, wherein the monitoring components are various sensors and monitoring hosts. The inter-row air conditioner is used for refrigerating five IT cabinets in the micro-module IDC machine room correspondingly, is installed between the five adjacent IT cabinets, and is accurately refrigerated in the shortest distance in a front-feeding and back-returning horizontal air supply mode, so that the cold source is guaranteed to be efficiently utilized, and the inter-row air conditioner C3 is installed in a south row and is mainly responsible for refrigerating a first IT cabinet A1, a second IT cabinet A2, a third IT cabinet A3, a first IT cabinet B1 and a second IT cabinet B2 in the north row; the inter-train air conditioner C1 is installed in the north train and is mainly responsible for refrigerating a fourth IT cabinet A4 in the north train, a fifth IT cabinet A5 in the north train, a third IT cabinet B3 in the south train, a fourth IT cabinet B4 in the south train and a fifth IT cabinet B5 in the south train; the inter-train air conditioner C4 is installed in the south train and is mainly responsible for refrigerating a sixth IT cabinet A6 in the north train, a seventh IT cabinet A7 in the north train, an eighth IT cabinet A8 in the north train, a sixth IT cabinet B6 in the south train and a seventh IT cabinet B7 in the south train; the inter-train air conditioner C2 is installed in the north train and is mainly responsible for refrigerating a ninth IT cabinet A9 in the north train, a DC/DC and power distribution device D1 in the north train, an eighth IT cabinet B8 in the south train, a ninth IT cabinet B9 in the south train and an AC/DC and power distribution device D2. Meanwhile, a monitoring system in the IDC machine room automatically controls the working state of the corresponding inter-row air conditioning unit by acquiring the air inlet temperature of the IT equipment and the return air temperature information of the indoor unit of the inter-row air conditioner, so that the cold and hot loads are in real-time matched dynamic balance.

Referring to fig. 2, the external power supply in this embodiment is provided with 4 paths of power by an ac/dc hybrid microgrid connected to a main grid. The alternating current-direct current hybrid micro-grid consists of an alternating current micro-grid 1, an alternating current micro-grid 2 and a direct current micro-grid. The alternating-current micro-grid 1 and the alternating-current micro-grid 2 are both connected into the lithium iron phosphate energy storage system, the direct-current micro-grid is connected into the distributed photovoltaic and super capacitor system, and the alternating-current micro-grid 1 and the alternating-current micro-grid 2 are connected with each other through the interconnection switch and are connected with the direct-current micro-grid through the AC/DC converter. The alternating current-direct current hybrid micro grid provides 2 paths of alternating current power supplies with uninterrupted power supply capacity for supplying power to an air conditioning system, 1 path of alternating current power supplies with uninterrupted power supply capacity for supplying power to IT equipment, and 1 path of high-availability direct current power supplies with clean energy and uninterrupted power supply capacity.

Referring to fig. 3, the micromodule IDC room comprises 1 modularized AC/DC high-frequency switching rectifier, 1 modularized DC/DC voltage converting device, 1 ATS switching and alternating current power distribution device, one set of integrated comprehensive perception micromodule monitoring and a plurality of groups of IT cabinets and precise air conditioners, and two sets of direct current intelligent power distribution units PDU are configured inside each group of IT cabinets.

The all-element micromodule IDC machine room for supplying power to the high-voltage direct-current 2N through the alternating-current and direct-current hybrid microgrid provides 3 paths of alternating-current power supplies AC400V and 1 path of direct-current power supplies DC 750V.

Wherein, input 1 and input 2 are the power supply of the IT equipment shown in figure 2, input 3 and input 4 are the power supply of the air conditioning equipment shown in figure 2, and the precision air conditioner, the sliding door (end door) and part of the PAD terminal in the micromodule IDC machine room are automatically switched to be supplied with alternating current by ATS; the IT equipment, most of the sensing equipment and the lighting equipment are powered by 240V direct current, wherein the IT equipment adopts a 2N power supply mode. Meanwhile, the IT cabinet also comprises a monitoring cabinet, and various monitoring servers are deployed in the monitoring cabinet and used for processing and storing data such as power, temperature and humidity, videos, entrance guard security, water immersion and the like in the module.

Inputting 1 path of alternating current power AC400V into a 180KW modular AC/DC high-frequency switch rectifier, rectifying 400V alternating current into DC240V, and accessing a set of 240V direct current intelligent power distribution unit PDU (rPDU 1) in an IT cabinet; the 1 180KW modular DC/DC voltage conversion device inputs 1 path of DC power DC750V, converts 750V DC into 240V DC, and is connected to another 1 set of 240V DC intelligent power distribution unit (rPDU 2) to form 2N power supply of 240V DC. And each 1 IT cabinet is respectively connected with 2 paths of 240V direct current from the 2 sets of 240V direct current intelligent power distribution units, and 2 paths of independent 240V direct current power supplies are provided for each IT device installed in the cabinet through 2 sets of direct current intelligent power distribution units PDU configured in the IT cabinet. Meanwhile, the other 2 paths of alternating current power AC400V provide power for each precision air conditioner in the micromodule IDC machine room after alternating current power distribution and ATS switching are carried out by the ATS switching and alternating current power distribution device.

In this embodiment, the integrated comprehensive sensing micromodule monitoring includes various sensors (such as a temperature and humidity sensor, a smoke sensor, a camera and the like) and a monitoring host which are dispersedly installed in the micromodule IDC machine room, and is used for monitoring the operating environment and the working state of various main devices. The monitoring host is installed in a monitoring cabinet, and the monitoring cabinet also belongs to an IT cabinet.

The integrated comprehensive sensing micromodule monitoring in the embodiment comprises sensing the environments such as temperature, humidity, water leakage, gas and illumination; sensing the running states of power supply and distribution equipment, air conditioning equipment, IT equipment and sensing acquisition equipment; and sensing the RFID label standing book information, personnel entrance and exit authentication, motion tracks and the like.

The precise air conditioner is a natural cooling air cooling fluorine pump direct current frequency conversion inter-row air conditioner.

Because the power supply and distribution system is integrated in the micromodule IDC machine room, the DC750V is used near a terminal load, particularly a 1-path external power supply, and the power transmission cost and the power consumption are lower than those of a pure AC400V system.

Outdoor units of the natural cooling air-cooled fluorine pump direct-current variable-frequency inter-row air conditioner are installed on the roof of a data center building in a centralized mode, indoor units are arranged inside a micromodule IDC machine room uniformly according to heat loads mainly generated by IT equipment, and the outdoor units and the indoor units are connected through independent refrigerant pipelines. The indoor unit adopts a front-feeding and back-returning horizontal air supply mode, so that accurate refrigeration is realized at the shortest distance, and the cold source is ensured to be efficiently utilized.

The IT cabinet provides an installation mechanical environment and a strong and weak current cable channel for IT equipment, and comprises a front door, a rear door, an IT equipment installation frame in the cabinet, a cable slot in the cabinet, a blind plate, a dustproof piece, an airflow diversion trench and the like.

The closed channel assembly comprises two side end doors, a horizontal overturning skylight, a cabinet top wire groove, a lighting assembly and a fire-fighting alarm assembly. The end doors are two side end doors of the IDC machine room, namely E1 and E2 in figure 1. The horizontal turnover skylight and the cabinet top are on the same horizontal plane and are closed at ordinary times, and if the fire alarm assembly detects that a fire alarm occurs, the horizontal turnover skylight is turned over and opened for gas fire protection and dense smoke discharge, and the size of each skylight is 600 x 1200 and is matched with the cold channel and the cabinet. The cabinet top wire casing is installed on the top of the cabinet. The cabinet top wire slot is divided into a signal wire slot and a power wire slot which are respectively used for wiring of a signal wire and a power wire, and the separate arrangement of strong and weak current cables is realized. As shown in fig. 5, the trunking is formed by completely clamping and assembling two side plates 1, a supporting plate 2 and a partition plate 3 (for realizing separation of weak-current optical fibers and network cables and separation of strong-current A, B circuits).

The lighting assembly in this embodiment is an illumination lamp.

The closed channel assembly closes cold air blown out by the inter-train air conditioner in a relatively narrow space formed by an IT cabinet, end doors E1 and E2, a floor and a horizontal turnover skylight, and then the cold air is horizontally sucked from the closed channel by a fan of the IT equipment for cooling the IT equipment (the front door of the IT cabinet is a mesh door with the aperture ratio of more than 50%). And hot air is blown out from the rear end of the server through the IT cabinet rear door, and finally, the air is naturally returned to the inter-row air conditioner to finish cold and heat exchange. Because the servers are installed at different heights of the IT cabinet, the mode of sealing the air duct and horizontally supplying air is beneficial to efficiently utilizing cold sources, no local hot spot is generated, a cold channel is provided for a refrigerating system, and installation conditions are provided for facilities such as security protection, illumination, fire protection and control systems.

The advantage of adopting horizontal air supply of column space air conditioner is: even if a plurality of IT equipment are installed at different heights of the same cabinet, the obtained cold air is equivalent, and the problem that the quantity of cold obtained by the IT equipment installed at a higher position is less than that obtained by the IT equipment installed at a lower position is avoided.

The IT equipment comprises a server, network equipment, special storage equipment, information safety equipment and the like.

Each micromodule IDC machine room in the embodiment is 1 independent small-sized data center, and even if a medium-sized and large-sized data center is deployed, the micromodule IDC machine room can be formed by overlapping deployment of all-element modular machine rooms. Except for the steel cylinder room for gas fire fighting, the functional rooms such as a diesel engine room, a power distribution room, a storage battery room and an air conditioner room are not required to be arranged.

Furthermore, the modular AC/DC high-frequency switching rectifier and the modular DC/DC voltage conversion device with the power supply monitoring system can enable the power supply system to work in the best energy efficiency state on the basis of ensuring reliability through the technologies of load balancing, module dormancy and the like, and the total energy consumption is further reduced compared with that of a traditional data center machine room adopting UPS equipment.

Further, the natural cooling air-cooled fluorine pump direct-current frequency conversion inter-train air conditioning unit works in a double-engine three-mode, when the unit is in an outdoor low-temperature season, the unit is intelligently judged according to outdoor environment temperature and indoor load requirements, the natural cooling energy-saving mode of the fluorine pump is switched to, the low-power fluorine pump system is used for completely replacing the compressor to run, or the power of the compressor is partially reduced, an outdoor cold source is fully utilized, and the energy efficiency ratio of the unit is greatly improved.

The double-engine adopts double power of a compressor and a fluorine pump, and the three modes, namely the same set of refrigeration pipeline, realize three operation modes of compressor refrigeration, double-engine mixed refrigeration and natural cooling of the fluorine pump.

The working principle of the compressor in a refrigeration mode is as follows: when the outdoor high-temperature season is in, the unit operates the compressor refrigeration mode, and the compressor does work to enable the refrigerant to generate phase change for refrigeration, so that sufficient cold is provided for the indoor space.

The working principle of the 'double-engine' mixed mode is as follows: when the outdoor transition season is met, the unit operates in a compressor and fluorine pump dual-power mixed refrigeration mode, the fluorine pump pressurization system assists the compressor to operate, the power consumption of the compressor is saved, and the energy efficiency ratio of the whole unit is improved.

The working principle of the fluorine pump in a natural cooling energy-saving mode is as follows: in outdoor low-temperature seasons, the unit is intelligently judged according to outdoor environment temperature and indoor load requirements, and is switched to a natural cooling energy-saving mode of the fluorine pump, the low-power fluorine pump system is used for replacing a compressor to run, an outdoor cold source is fully utilized, and the energy efficiency ratio of the unit is greatly improved.

Furthermore, air conditioners between columns are uniformly distributed in the micro-module IDC machine room and the closed channel, air flow is reasonably organized, cold air flow of the air conditioners is fully utilized for heat dissipation of servers in the cabinet, waste of the cold air flow is reduced, and therefore energy consumption of the machine room is reduced.

Each all-element micromodule IDC machine room can be 1 small-sized data center independently, only 1 path of 200kW and 2 paths of 100kW AC400 power supplies are required to be input to the outside of the IDC machine room, and 1 path of 200kW DC750 power supply can meet the construction standard of a T3 machine room without separately configuring a special storage battery and cold accumulation equipment. As long as a building reserves a proper space, a plurality of (about 10 are recommended, the building area is within 800 square meters) high-voltage direct-current power supply all-element micro-module machine rooms are built in stages according to actual requirements in a building block type mode, and finally a medium-sized data center with the annual comprehensive energy efficiency ratio smaller than 1.5 can be formed. Meanwhile, the integrated comprehensive perception micromodules configured in each micromodule machine room monitor and send information to a data center intelligent management system (DCIM) according to a unified interface. The intelligent management system of the data center adopts advanced fuzzy logic group control technology, visual display, flexibly expanded physical architecture and software modularization idea, and can carry out partition unified management and control and centralized operation on a plurality of all-element micro-module machine rooms.

Compared with a data center under a conventional energy efficiency management system, the all-element micromodule IDC machine room powered by high-voltage direct-current 2N adopts a green design concept, the high-efficiency refrigerating system and the optimized airflow organization which reduce the times of electric energy conversion and fully utilize outdoor natural cold sources are deeply researched in the aspects of IT equipment, rack layout, refrigerating and heat-radiating systems, power supply and distribution systems, clean energy utilization systems and the like, and through the matching analysis of the optimal granularity, the utilization rate of equipment in the links of power supply, refrigeration and the like is improved, the cost of the whole life cycle is reduced, the energy consumption (including the energy consumption of IT equipment) in the power supply link is saved by 10 to 20 percent, meanwhile, the on-site efficient utilization of clean energy is promoted, the rapid deployment, elastic expansion and green energy conservation of data center infrastructure can be realized, the efficient and stable operation of the data center is guaranteed, the overall construction and operation efficiency is improved, and the construction and operation cost is reduced.

The optimal granularity matching analysis is to perform systematic matching optimization on the total capacity of a power supply system, the capacity of a single power supply module and the total refrigerating capacity of a refrigerating system and the refrigerating capacity of a single inter-row air conditioner under the given IT system working condition, so that the use efficiency of various devices is improved, the total energy consumption of the system is reduced, the unit engineering cost is low, and the number and the distribution mode of components in an IDC machine room shown in FIG. 1 are matched results.

Referring to fig. 4, each micromodule IDC room monitor (1-N) accesses the DCIM system according to a unified standard interface. The DCIM system energy consumption monitoring and intelligent energy-saving control function module acquires energy consumption real-time information of front-end infrastructures and IT equipment through various metering instruments and software, analyzes and arranges data into system-level and equipment-level energy efficiency indexes, automatically controls all air conditioner working states of the micro-module in a linkage mode, further optimizes the air conditioner operation condition, dynamically matches heat load and unit performance, and reduces output of invalid energy consumption. Meanwhile, the real-time data and the historical data are subjected to same-ratio and ring-ratio analysis at regular intervals, the energy efficiency indexes of the equipment are checked, the equipment with abnormal energy consumption is found out, an energy-saving task is issued to drive manual energy saving, and the high-energy-consumption equipment is automatically closed or operation and maintenance personnel are reminded to find high-energy-consumption nodes. All data are visually presented in various forms such as charts and the like and can be transmitted to remote mobile operation and maintenance personnel.

The invention analyzes the advantages of a distributed energy station, a transformer substation and an energy storage station under the scene of high-voltage direct-current uninterrupted power supply capacity, reduces the coupling (including electric power, refrigeration, construction, fire protection and the like) of IDC machine room infrastructure to the external environment of the machine room to the greatest extent in order to adapt to the requirements of rapid deployment, elastic expansion and green energy conservation of a data center, innovatively fuses system-level high reliability and automatic operation and maintenance, ensures the stable operation of the machine room in the whole life cycle, and overcomes the problems of high energy consumption, high cost, low efficiency and the like of the traditional data center.

A preferred embodiment of the present invention has been described in detail. The detailed description is only intended to facilitate an understanding of the core concepts of the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall into the protection scope of the claims of the present invention.

Claims (8)

1. An all-element micro-module IDC machine room powered by high-voltage direct-current 2N comprises 1 modular AC/DC high-frequency switch rectifier, 1 modular DC/DC voltage conversion device, 1 ATS switching and alternating-current power distribution device, a set of integrated comprehensive perception micro-module monitoring and a plurality of sets of IT machine cabinets and precise air conditioners, wherein two sets of direct-current intelligent Power Distribution Units (PDU) are arranged in each set of IT machine cabinet;

the modular AC/DC high-frequency switching rectifier is connected into a set of the direct-current intelligent power distribution unit;

the modularized DC/DC voltage conversion device is connected into the other set of the DC intelligent power distribution unit to form DC 2N power supply;

the ATS switching and alternating current power distribution device provides power for the precision air conditioner;

the two sets of direct current intelligent power distribution units PDU provide two paths of mutually independent direct currents for each IT device installed in the IT cabinet;

the integrated comprehensive perception micromodule monitoring system comprises various sensors and a monitoring host which are dispersedly installed in an IDC machine room and is used for monitoring the running environment and the working state of various IT equipment, and the monitoring host is installed in an IT cabinet.

2. The high voltage direct current 2N powered all-element micromodule IDC machine room of claim 1, characterized in that: the modular AC/DC high-frequency switching rectifier is used for rectifying input 400V alternating current into 240V direct current and then outputting the direct current to one set of the direct current intelligent power distribution unit in the IT cabinet.

3. The high voltage direct current 2N powered all-element micromodule IDC machine room of claim 1 or 2, wherein: the modular DC/DC voltage conversion device is used for converting 750V direct current into 240V direct current, and then outputting the 240V direct current to the other set of direct current intelligent power distribution unit in the IT cabinet.

4. The high voltage direct current 2N powered all-element micromodule IDC machine room according to any of claims 1 to 3, characterized in that: the system is used for outputting the two paths of input 400V alternating current to the precision air conditioner after alternating current distribution and ATS switching.

5. The high voltage direct current 2N powered all-element micromodule IDC machine room of claim 1, characterized in that: the IT cabinet provides an installation mechanical environment and a strong and weak current cable channel for IT equipment.

6. The high voltage direct current 2N powered all-element micromodule IDC machine room of claim 1, characterized in that: the fire-fighting access door is characterized by further comprising a set of closed channel assembly, wherein the closed channel assembly comprises two side end doors, a horizontal overturning skylight, a cabinet top wire groove, a lighting assembly and a fire-fighting alarm assembly.

7. The high voltage direct current 2N powered all-element micromodule IDC machine room of any of claims 1 to 6, wherein: the IT cabinets are arranged in parallel in the machine room, and two precise air conditioners are arranged in each row of the IT cabinets.

8. The high voltage direct current 2N powered all-element micromodule IDC machine room of claim 7, characterized in that: the number of the precise air conditioners is four, and the number of the IT cabinets is eighteen.

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