CN112436595B

CN112436595B - Low-voltage module, HVDC module, UPS module, power supply system and data center

Info

Publication number: CN112436595B
Application number: CN202011261693.1A
Authority: CN
Inventors: 张劲骁
Original assignee: Beijing Baidu Netcom Science and Technology Co Ltd
Current assignee: Beijing Baidu Netcom Science and Technology Co Ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2022-12-06
Anticipated expiration: 2040-11-12
Also published as: CN112436595A

Abstract

The application discloses a low-voltage module, an HVDC module, a UPS module, a power supply system and a data center, relates to the technical field of power supply, and can be applied to data centers in the field of cloud computing or cloud. The low-voltage module comprises a first-level low-voltage module, wherein the first-level low-voltage module comprises a plurality of first interfaces compatible with first current, and the plurality of first interfaces comprise an incoming line interface, a bus coupler interface and an output interface used for outputting power supplies of lower levels. According to the technical scheme, the power supply system and the power supply method can be compatible with various power supply scenes, and field construction is simplified.

Description

Low-voltage module, HVDC module, UPS module, power supply system and data center

Technical Field

The application relates to the technical field of power supply, in particular to a low-voltage module, an HVDC module, a UPS module, a power supply system and a data center.

Background

A common backup Power system of a data center mainly includes two types, i.e., a High Voltage Direct Current (HVDC) and an Uninterruptible Power Supply (UPS), which are configured with different redundant Power Supply modes to derive various Power Supply architecture combinations that are incompatible with each other. Because the single-machine capacities and the working principles of the UPS and the HVDC are different, the required configuration of upper and lower-stage switches is different, if the demand changes in the construction, the adjustment of a power supply framework is very difficult, and the service change cannot be responded in time. And because the coupling degree of the power supply framework is higher, the interfaces are more, and the field construction amount is larger.

Disclosure of Invention

The application provides a low-voltage module, an HVDC module, a UPS module, a power supply system and a data center.

In a first aspect, an embodiment of the present application provides a low voltage module, including a first-level low voltage module, the first-level low voltage module includes a plurality of first interfaces compatible with a first current, and the plurality of first interfaces include an incoming line interface, a bus coupler interface, and an output interface for a lower-level output power supply.

In a second aspect, an embodiment of the present application provides an HVDC module, which includes a plurality of HVDC devices, where input ends of the HVDC devices are connected to form a second centralized interface, the second centralized interface is used to connect a first-stage low-voltage module, and an output end of the HVDC module is used to supply power to IT devices.

In a third aspect, an embodiment of the present application provides a UPS module, which includes multiple UPS devices connected in parallel, where input ends of the UPS devices are connected to form a third centralized interface, output ends of the UPS devices are connected to form a fourth centralized interface, the third centralized interface is used to connect a primary low-voltage module, and the fourth centralized interface is used to connect a secondary low-voltage module.

In a fourth aspect, an embodiment of the present application provides a power supply system, which includes a two-way power supply line, where the power supply line includes the first-stage low-voltage module of the first aspect, and the HVDC module of the second aspect, and where the first output interface is connected to the second centralized interface.

In a fifth aspect, an embodiment of the present application provides a power supply system, including a first power supply line and a second power supply line, where the first power supply line includes a first-stage low-voltage module in the first aspect and an HVDC module in the second aspect, and the second power supply line includes a first-stage low-voltage module in the first aspect, a second-stage low-voltage module in the first aspect and an HVDC module in the second aspect, where a first output interface in the first power supply line is connected to a second centralized interface in the first power supply line; and a second input interface in the second power supply line is used for connecting commercial power.

In a sixth aspect, an embodiment of the present application provides a power supply system, including a two-way power supply line, where the power supply line includes a first-stage low-voltage module of the first aspect, a second-stage low-voltage module, and a UPS module of the third aspect, where a first output interface is connected to a third centralized interface; the second input interface is connected to the fourth centralized interface.

In a seventh aspect, an embodiment of the present application provides a data center, which includes an IT device and any one of the above power supply systems, where the power supply system is configured to supply power to the IT device.

According to the technical scheme of the embodiment of the application, various power supply scenes can be compatible, and the field construction is simplified.

It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present application, nor do they limit the scope of the present application. Other features of the present application will become apparent from the following description.

Drawings

The drawings are included to provide a better understanding of the present solution and are not intended to limit the present application. Wherein:

FIG. 1 is a schematic diagram of a primary low pressure module according to one embodiment of the present application;

fig. 2-1 is a schematic diagram of a single-line commercial power and single-line HVDC power supply system in the related art;

FIG. 2-2 is a schematic diagram of a two-way UPS power supply system in the related art;

FIG. 3 is a schematic diagram of a secondary low pressure module according to one embodiment of the present application;

fig. 4 is a schematic diagram of an HVDC module according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a UPS module according to one embodiment of the present application;

fig. 6 is a schematic diagram of a two-way HVDC power supply system according to an embodiment of the present application;

fig. 7 is a schematic diagram of a single-line commercial power and single-line HVDC power supply system according to an embodiment of the present application;

fig. 8 is a schematic diagram of a two-way UPS power supply system according to an embodiment of the present application.

Description of the reference numerals:

a transformer 10; an upper power supply 20; a first bus bar 30; a second bus bar 40; an IT device 50;

primary low-voltage module 100:

a first interface: an incoming line interface 110a, a bus coupler interface 110b, a first output interface 110c and a second output interface 110d;

a second interface 120; a first centralized interface 130;

secondary low-voltage module 200:

a first input interface 210a; a second input interface 210b; a third output interface 220;

HVDC module 300:

an HVDC device 310; a second centralized interface 320;

the UPS module 400:

a UPS device 410; a third convergence interface 420; a fourth centralized interface 430.

Detailed Description

The following description of the exemplary embodiments of the present application, taken in conjunction with the accompanying drawings, includes various details of the embodiments of the application for the understanding of the same, which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

The embodiment of the application provides a low-voltage module. Fig. 1 illustrates a low voltage module according to an embodiment of the present application. As shown in fig. 1, the low voltage module includes a primary low voltage module 100, and the primary low voltage module 100 includes a plurality of first interfaces compatible with a first current and a plurality of second interfaces 120 compatible with a second current.

Wherein the first current is greater than the second current. The current values of the first current and the second current can be configured according to the requirements of application scenarios. For example: the first current may be 3200A or 4000A and the second current may be 630A or 400A. That is, the primary voltage module 100 is configured with a plurality of first interfaces compatible with a large current and a plurality of second interfaces 120 compatible with a small current.

In one example, the number of the second interfaces 120 and the current value of the second current may be configured according to an application scenario. For example: 3 630A second interfaces can be configured to be respectively used for connecting the UPS maintenance branch circuit, the UPS bypass circuit and the UPS main circuit; further, the second interface of 400A may also be configured to serve as an interface for reactive compensation and harmonic suppression.

The plurality of first interfaces may include an incoming interface 110a, a bus coupler interface 110b, and an outgoing interface. The incoming line interface 110a is used to connect to a higher power supply. For example, as shown in fig. 1, the incoming line interface 110A may be connected to a superior power source 20, such as a high voltage power grid with an output of 10kV/630A, through a transformer 10. In one example, the capacity of the transformer 10 may be 1600kVA. The bus-tie interface 110b is used for bus-tie with a bus-tie interface in the primary voltage module of another path through the first bus (dense bus) 30 (see fig. 6, 7 or 8). The output interface is used for outputting power supply to the lower power supply device.

The output interface of the first-stage low-voltage module 100 is connected to the input end of each second interface 120 to form a first centralized interface 130, and the incoming line interface 110a and the bus coupler interface 110b are respectively connected to the first centralized interface 130.

The number of output interfaces of the primary low voltage module 100 may be configured according to the requirements of the application scenario. In one example, the output interfaces of the primary low voltage module 100 may include a first output interface 110c for connecting a HVDC module or a UPS module. For example, in a two-way HVDC power supply system or a one-way HVDC one-way mains power supply system, the first output interface 110c may be used to connect an HVDC module 300 (see fig. 6 and 7) to output power to the HVDC module 300 of the lower-stage power supply apparatus; in a two-way UPS power system, the first output interface 110c may be used to connect the UPS module 400 (see fig. 8) to output power to the downstream power supply UPS module 400. That is, the first output interface 110c may be compatible with the HVDC module 300 and the UPS module 400, so that the same interface configuration may play different roles in different power supply systems, achieving compatibility and multiplexing.

In the related art, as shown in fig. 2-1 and 2-2, a plurality of lower-level power supply devices (such as UPS devices or HVDC devices) are directly connected to the low-voltage cabinet, and the number of interfaces is large, and the coupling degree is high. Due to the fact that the single-machine capacity and the working principle of the UPS equipment and the HVDC equipment are different, when an application scene changes and different power supply systems need to be selected, the connection relation and the arrangement of the equipment need to be adjusted greatly, and therefore service changes cannot be responded timely, and construction amount is large.

In the embodiment of the application, the first interface compatible with the large current is configured for the lower-level power supply, so that the number of the interfaces is simplified, the interface specification is standardized, and no matter how many sets of power supply equipment are arranged on the lower level, the interfaces are connected and distributed in the power supply system. Furthermore, a second interface compatible with small current is configured, wherein the second interface comprises an interface for reactive compensation and harmonic suppression, so that the main configuration of all scenes is universal; the second interface can also comprise a plurality of interfaces which can be configured according to actual scenes, and the interfaces can be preset in advance due to low cost so as to simplify field construction.

It should be noted that each interface of the embodiments of the present application may be configured with a corresponding switch.

In one implementation, as shown in fig. 3, the low voltage module of the present embodiment may further include a secondary low voltage module 200. The secondary low voltage module 200 includes a plurality of input interfaces for first current compatibility and a plurality of third output interfaces 220 for second current compatibility.

The third output interface 220 is used to supply power to the IT device 50, so that the secondary low-voltage module 200 assumes the function of the column head cabinet output cabinet. The number of the third output interfaces 220 may be configured according to actual requirements, for example, the number of the third output interfaces 220 is 12, and each third output interface 220 provides 630A/3P power to the IT device 50.

The input interface of the secondary low voltage module 200 includes a first input interface 210a, the output interface of the primary low voltage module 100 further includes a second output interface 110d, and the first input interface 210a is connected to the second output interface 110d, so that the primary low voltage module 100 can output power to the secondary low voltage module 200.

Through the standardized interface of the secondary low-voltage module 200, compatibility of various power supply systems can be achieved, so that power is supplied to the IT device 50 under different power supply system architectures.

In one embodiment, the input interface of the secondary low-voltage module 200 further includes a second input interface 210b for connecting the UPS module 400 or the utility power. For example: in one HVDC one-way commercial power supply system, the second input interface 210b may be connected to commercial power (see fig. 7), that is, the second-stage low-voltage module 200 takes on the function of a commercial power output cabinet; in a two-way UPS power supply system, the second input interface 210b may be connected to a UPS module 400 (see fig. 8), i.e., the secondary low voltage module 200 assumes the function of a UPS output cabinet. Therefore, the same interface configuration plays different roles in different power supply systems, and the effects of compatibility and multiplexing are achieved.

The embodiment of the present application also provides an HVDC module 300. In one embodiment, as shown in fig. 4, the HVDC module 300 includes a plurality of HVDC devices 310, and the input terminals of the HVDC devices 310 are connected to form a second concentrating interface 320 for connecting to the first-stage low voltage module 100. For example, in a two-way HVDC power supply system or a one-way HVDC one-way mains power supply system, the second centralized interface 320 is connected to the first output interface 110c. The output of the HVDC module 300 is used for powering the IT equipment 50.

In the related art, as shown in fig. 2-1, HVDC single units are connected to the low-voltage cabinet directly, and cables are numerous. In the HVDC module 300 in the embodiment of the present application, power is supplied through the first output interface in the first-stage low-voltage module 100, and in a two-way HVDC power supply system or a one-way HVDC commercial power supply system, only two second busbars 40 are connected at two HVDC inputs (see fig. 6 and 7), and then one is divided into five by an internal copper bar, so that the interface is greatly simplified, and the field construction is facilitated.

The embodiment of the present application further provides a UPS module 400. As shown in fig. 5, the UPS module 400 includes a plurality of UPS devices 410 connected in parallel. The input terminals of the UPS devices 410 are connected together to form a third centralized interface 420 for connecting to the first-level low-voltage module 100; the output terminals of the UPS devices 410 are coupled together to form a fourth centralized interface 430 for coupling to the secondary low voltage modules 200.

In one example, as shown in fig. 8, in a two-way UPS power supply system, the third concentrating interface 420 is connected to the first output interface 110c of the primary low voltage module 100, and the fourth concentrating interface 430 is connected to the second input interface 210b of the secondary low voltage module 200. Therefore, the interface can be greatly simplified, the wiring quantity is reduced, and the site construction is convenient.

The UPS module 400 and the HVDC module 300 of the present embodiment may multiplex an upper level architecture, i.e., the first-level low voltage module 100, to shorten a field construction period.

The embodiment of the application also provides a power supply system, and the power supply system is a double-circuit HVDC power supply system. In one embodiment, as shown in fig. 6, the power supply system comprises two power supply lines, each power supply line comprising a first stage low voltage module 100 and a HVDC module 300. In each power supply line, the first output interface 110c of the first-stage low-voltage module 100 is connected to the second concentrating interface 320 of the HVDC module 300, and the output end of the HVDC module 300 supplies power to the IT device 50.

In one example, the second output interface 110d of the primary low voltage module 100 may be configured to receive a switch cabinet with a first current (e.g., 3200A). Further, the bus-bar interface 110b of the first-stage low-voltage module 100 in one power supply line (for example, the right power supply line in fig. 6) may be an empty cabinet and is set as a bus-bar short circuit.

The embodiment of the application also provides a power supply system, and the power supply system is a one-way HVDC one-way commercial power supply system. In one embodiment, as shown in FIG. 7, for the IT device 50, the power supply system includes two power supply lines, a first power supply line and a second power supply line. The first power supply line comprises a first-stage low-voltage module 100 and an HVDC module 300, and the second power supply line comprises a first-stage low-voltage module 100, a second-stage low-voltage module 200 and an HVDC module 300.

In the first supply line, the first output interface 110c of the primary low voltage module 100 is connected to the second concentration interface 320 of the HVDC module 300; in the second supply line, the first output interface 110c of the primary low voltage module 100 is connected to the second concentrating interface 320 of the HVDC module 300. That is, for the HVDC module 300, it also has a two-way power supply line.

Further, in the second power supply line, the first output interface 110d of the primary low-voltage module 100 is connected to the first input interface 210a of the secondary low-voltage module 200; the second input interface 210b of the second-stage low-voltage module 200 is connected to the commercial power, and serves as a commercial power direct supply module without installing a fuse.

The output of the HVDC module 300 and the third output interface 220 of the second stage low voltage module 200 are both used to power the IT equipment 50.

In one example, the second output interface 110d of the primary low voltage module 100 may be configured to receive a switch cabinet with a first current (e.g., 3200A). The bus-tie interface 110b of the first-stage low-voltage module 100 in one power supply line (for example, the second power supply line) may be an empty cabinet and is set as a bus-bar short circuit.

The embodiment of the application further provides a power supply system which is a double-circuit UPS power supply system. In one embodiment, as shown in fig. 8, the power supply system includes two power supply lines, each including a primary low voltage module 100, a secondary low voltage module 200, and a UPS module 400.

In each power supply line, the first output interface 110c of the first-stage low-voltage module 100 is connected to the third centralized interface 420 of the UPS module 400; the second output interface 110d of the primary low-voltage module 100 is connected to the third centralized interface 420 of the UPS module 400; the fourth concentrating interface 430 of the UPS module 400 is connected to the second input interface 210b of the secondary low-voltage module 200; in each power supply line, the third output interface 220 of the secondary low voltage module 200 supplies power to the IT device 50.

In one example, the other output interface 110d of the primary low voltage module 100 may be configured to receive a first current (e.g., 3200A) of a switch cabinet. The first-stage low-voltage module of one power supply line, for example, the bus-tie interface 110b of the first-stage low-voltage module 100 in the right power supply line in fig. 8, may be an empty cabinet and is set as a short circuit of a busbar.

Therefore, the first-stage low-voltage module 100, the second-stage low-voltage module 200, the HVDC module 300 and the UPS module 400 provided in the embodiment of the present application can be compatible with various scenes, simplify field construction, and implement controllable, flexible, fast and efficient deployment of a power supply system.

In an example, the first-stage low-voltage module 100 may be completely preset, and then different architectures, such as one-path HVDC one-path commercial power supply system, two-path UPS power supply system, and two-path HVDC power supply system, may be selected at any time according to variable service requirements, and the HVDC module 300, the UPS module 400, and the second-stage low-voltage module 200, which have been standardized and configured, may be freely combined in stages, so as to achieve the effects of delivery in stages and flexible deployment.

The embodiment of the application also provides a data center, which comprises the IT equipment 50 and any one of the power supply systems.

Other configurations of the data center of the above embodiments can be adopted by various technical solutions known by those skilled in the art now and in the future, and are not described in detail here.

In the description of the present specification, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; the connection can be mechanical connection, electrical connection or communication; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. The first feature being "under," "beneath," and "under" the second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The above-described embodiments are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A low-voltage module comprises a primary low-voltage module, wherein the primary low-voltage module comprises a plurality of first interfaces compatible with first current, and the plurality of first interfaces comprise an incoming line interface, a bus coupler interface and an output interface used for outputting power to a lower level;

the primary low-voltage module further comprises a plurality of second interfaces compatible with a second current, wherein the first current is greater than the second current; the input end of each second interface is connected with the output interface to form a first centralized interface, and the incoming line interface and the bus coupler interface are respectively connected with the first centralized interface;

the output interface still includes second output interface, the low pressure module still includes second grade low pressure module, second grade low pressure module includes a plurality of input interfaces that are used for compatibly first electric current and a plurality of compatible second electric current's third output interface, input interface includes first input interface, first input interface connects second output interface, third output interface is used for supplying power for IT equipment.

2. The low voltage module of claim 1, the output interface comprising a first output interface for connecting an HVDC module or a UPS module.

3. The low voltage module of claim 1, the input interface further comprising a second input interface for connecting a UPS module or a utility power.

4. An HVDC module comprises a plurality of HVDC devices, wherein input ends of the HVDC devices are connected to form a second centralized interface, the second centralized interface is used for being connected with a first-stage low-voltage module, the first-stage low-voltage module outputs power to a second-stage low-voltage module, and an output end of the second-stage low-voltage module and an output end of the HVDC module are used for supplying power to IT (information technology) equipment;

the primary low-voltage module comprises a plurality of first interfaces compatible with first current and a plurality of second interfaces compatible with second current, wherein the first current is larger than the second current; the plurality of first interfaces comprise an incoming line interface, a bus coupler interface and an output interface used for outputting power to subordinate levels, the output interface is connected with the input end of each second interface to form a first centralized interface, and the incoming line interface and the bus coupler interface are respectively connected with the first centralized interface;

the output interface still includes the second output interface, second grade low voltage module includes a plurality of input interfaces that are used for compatibly the first electric current and a plurality of compatible second electric current's third output interface, input interface includes first input interface, first input interface connects the second output interface, the third output interface is used for supplying power for IT equipment.

5. A UPS module comprises a plurality of UPS devices which are connected in parallel, wherein the input ends of the UPS devices are connected to form a third centralized interface, the output ends of the UPS devices are connected to form a fourth centralized interface, the third centralized interface is used for being connected with a primary low-voltage module, and the fourth centralized interface is used for being connected with a secondary low-voltage module;

the output interface further comprises a second output interface, the second-level low-voltage module comprises a plurality of input interfaces used for being compatible with the first current and a plurality of third output interfaces compatible with the second current, the input interfaces comprise first input interfaces, the first input interfaces are connected with the second output interfaces, and the third output interfaces are used for supplying power to the IT equipment.

6. A power supply system comprising a two-way power supply line comprising a low voltage module as claimed in claim 2, and an HVDC module as claimed in claim 4, wherein the first output interface is connected to the second concentrating interface.

7. A power supply system comprising a first power supply line comprising a low voltage module according to claim 2 and an HVDC module according to claim 4, and a second power supply line comprising a low voltage module according to claim 3 and an HVDC module according to claim 4, wherein a first output interface in the first power supply line is connected to a second centralized interface in the first power supply line; and a second input interface in the second power supply line is used for connecting a mains supply.

8. A power supply system comprising a two-way power supply line comprising the low voltage module of claim 3 and the UPS module of claim 5, wherein the first output interface is connected to the third concentrating interface; the second input interface is connected to the fourth concentrating interface.

9. A data center comprising IT equipment and a power supply system as claimed in any one of claims 6 to 8 for supplying power to the IT equipment.