CN219739636U - Redundant power supply assembly and redundant power supply electric cabinet structure - Google Patents

Abstract

This application discloses a redundant power supply component and a redundant power supply electrical cabinet structure, which relate to the technical field of accelerator power supplies. The redundant power supply component includes a backup power supply and a common power supply for powering the load, and also includes a switch for switching the common power supply and the backup power supply. The switching device of the power supply. When the common power supply has no fault, the common power supply is electrically connected to the load. When a common power supply fails, the switching device electrically connects the backup power supply to the load, and the backup power supply supplies power to the load, realizing N+1 of the power supply. Redundant and backup power supplies can be put into the system safely and conveniently to replace failed power supplies to ensure the continuous operation of the load and greatly improve the reliability of the power supply.

Description

A redundant power supply component and a redundant power supply electrical cabinet structure

Technical field

This application relates to the technical field of accelerator power supply, and more specifically, it relates to a redundant power supply component and a redundant power supply electrical cabinet structure.

Background technique

Among the accelerator systems, the power supply system has the largest number of devices and occupies an important position in the entire accelerator reliability model. The number of high-precision steady-current power supplies can reach thousands. If any one of the power supplies fails, the entire accelerator will fail. To work, the entire power system needs to be shut down for maintenance. Therefore, the reliable operation of the power system is directly related to the stability and effectiveness of the accelerator operation, so it is very necessary to improve the reliability of high-power power supplies.

Utility model content

In view of the problem that there are a large number of power supplies in the accelerator system in actual use, and once a damage failure occurs in one of them, it will affect the operation of the entire accelerator, the first purpose of this application is to propose a redundant power supply component that realizes N+1 redundancy of the power supply and increases the Reliability of power supply components; Based on the above redundant power supply components, the second purpose of this application is to protect a redundant power supply electrical cabinet structure.

The specific plans are as follows:

A redundant power supply assembly for use as a backup power source for powering at least one load and at least one regular power source;

The redundant power supply component also includes a switching device for switching the common power supply and the backup power supply. The switching device includes a first power input terminal, a second power input terminal and a common power output terminal. The first power input terminal The terminals are respectively electrically connected to the output terminal of the common power supply, the second power input terminal is electrically connected to the output terminal of the backup power supply, and the public power supply output terminal is electrically connected to the input terminal of the load;

In the first state, the first power input terminal is electrically connected to the public power output terminal, and the common power supply supplies power to the load;

In the second state, the second power input terminal is electrically connected to the public power output terminal, and the backup power supply supplies power to the load.

By adopting the above technical solution, when one of the common power supplies that supplies power to the load is damaged, the second power input terminal is connected to the public power output terminal, and the backup power supply is used to supply power to the load to ensure the continuous operation of the load. The redundant design is extremely Dadi improves the reliability of the power supply and realizes N+1 redundancy of the power supply through the switching device. When one of the power supplies fails, the backup high-power power supply can be safely and conveniently put into the system to replace the failed power supply. At the same time, the switching device solves the problem of backup When replacing a faulty power supply with a power supply, it is difficult to replace the cable, has low efficiency, and magnifies the fault.

Preferably, the common power supply includes a positive output terminal of a common power supply and a negative output terminal of a common power supply, and the backup power supply includes a positive output terminal of a backup power supply and a negative output terminal of a backup power supply;

The first power input terminal includes a first power positive input terminal and a first power negative input terminal, the second power input terminal includes a second power positive input terminal and a second power negative input terminal, and the common power output terminal Including the positive output terminal of the public power supply and the negative output terminal of the public power supply;

The positive output terminal of the common power supply is electrically connected to the positive input terminal of the first power supply, the negative output terminal of the common power supply is electrically connected to the negative input terminal of the first power supply, and the positive output terminal of the backup power supply is electrically connected to the positive input terminal of the second power supply. , the negative output terminal of the backup power supply is electrically connected to the negative input terminal of the second power supply, and the positive output terminal of the public power supply and the negative output terminal of the public power supply are electrically connected to both ends of the load respectively.

By adopting the above technical solution, the switching device can effectively switch the positive and negative poles of the backup power supply to the positive and negative poles of the load, ensuring continuous and reliable operation of the load.

Preferably, the switching device further includes a jumper for connecting the first power input terminal and the public power output terminal or the second power input terminal and the public power output terminal;

The jumpers are configured into two groups, respectively connecting the positive output terminal of the public power supply and the negative output terminal of the public power supply.

By adopting the above technical solution, the jumper in the switching device can effectively and reliably connect the power supply and the load. The jumper connection method can simplify the layout and improve planning flexibility. It is suitable for low-noise, large-capacity power supply circuits and enables circuit signal transmission. It is more complete, stable and reliable, making the power circuit modular, integrated, standardized and intelligent, and improving the stability and signal transmission capabilities of redundant power components.

Preferably, the switching device is also provided with an overheat detection unit;

The overheat detection unit includes a temperature detection part and an alarm part. The temperature detection part is arranged inside the switching device, detects the temperature in the switching device and outputs a detection signal, and the alarm part receives and responds to the detection. signal to provide an alarm prompt.

By adopting the above technical solution, the temperature detection component detects the temperature in the switching device in real time and outputs a detection signal to the alarm component. The alarm component emits sound and light signals based on the detection signal to alert the staff that the internal temperature of the switching device is too high. It needs to be processed; the redundant power supply component has an overheat detection function, which effectively ensures the safety of the redundant power supply component.

Preferably, the temperature detection component is configured as a temperature control switch;

There are a plurality of temperature control switches, each of which is installed at the jumper of the switching device. The signal output ends of the plurality of temperature control switches are connected with logic OR gates, and the logic OR gate outputs the detection signal.

The jumper is the most heated part of the switching device. By adopting the above technical solution, the temperature control switch is used to collect the temperature at each jumper and collect it at the logic OR gate. When the temperature at the jumper is too high, the temperature The temperature control switch will be turned on and output a logic 1 to the logic OR gate. Setting the logic OR gate can enable any temperature control switch to be turned on to output a detection signal and provide an alarm prompt, which increases the safety of redundant power components.

A redundant power supply electrical cabinet structure, based on the redundant power supply component as mentioned above, including a power supply cabinet for setting the common power supply or a backup power supply and a switching device cabinet for setting the switching device;

A plurality of the power supply cabinets are arranged adjacently, and the switching device cabinet is located on one side of the redundant power supply electrical cabinet structure.

By adopting the above technical solution, when the common power supply is damaged, the switching device cabinet can be opened to switch the backup power supply with the common power supply. When the backup power supply is used to replace the faulty power supply in the switching device cabinet, it is easy to replace the cable with high efficiency, saving space and layout. Compact; at the same time, it is convenient to expand common power supplies.

Preferably, the switching device cabinet is provided with a common power pole used to lead out the first power input terminal, a backup power pole used to lead out the second power input terminal, and a load pole used to lead out the public power output terminal;

The load electrode is arranged between the common power supply electrode and the backup power supply electrode, and a jumper board for connecting the common power supply electrode and the load electrode or the backup power supply electrode and the load electrode is provided in the switching device cabinet.

By adopting the above technical solution, the load pole is set between the common power supply pole and the backup power supply pole, which facilitates the connection between the load pole and the common power supply pole, or the load pole and the backup power supply pole, and facilitates jumpers. The structure is compact and the layout is reasonable.

Preferably, the switching device cabinet is provided with a symmetrical first cabinet and a second cabinet;

The first cabinet is used to set the common power supply pole, the backup power supply pole and the positive pole of the load pole, and the second cabinet is used to set the regular power supply pole, the backup power supply pole and the negative pole of the load pole.

By adopting the above technical solution, the positive and negative poles are mirror-symmetrically arranged to facilitate the operator's connection processing, and the positive and negative poles are set separately to reduce the probability of operator connection errors.

Preferably, the jumper board is connected to the backup power pole, the common power pole, and the load pole by bolts.

By adopting the above technical solution, the bolt connection is to connect the jumper to the backup power pole, the common power pole, and the load pole by tightening the bolts. The bolt connection method is simple and reliable, and the probability of failure is low.

Preferably, warning signs indicating high voltage and high temperature are provided on the outer wall of the switching device cabinet.

By adopting the above technical solution, warning signs indicating high voltage and high temperature can visually remind warning workers, improving the safety performance of the redundant power supply electrical cabinet structure.

Compared with the existing technology, the beneficial effects of this application are as follows:

(1) By setting up a backup power supply, when the common power supply fails, the backup power supply is used to supply power to the load. The backup power supply can be safely and conveniently put into the system through the switching device to replace the failed power supply to ensure the continuous operation of the load. The redundant design greatly improves To ensure the reliability of the power supply, N+1 redundancy of the power supply is achieved through the switching device;

(2) By setting up a switching device, problems such as difficulty in replacing cables, low efficiency, and magnification of faults are solved when the backup power supply replaces the faulty power supply;

(3) By setting up an overheat detection unit, the temperature detection component detects the temperature in the switching device in real time and outputs a detection signal to the alarm component. The alarm component emits sound and light signals based on the detection signal to alert the staff and remind the staff of the internal temperature of the switching device. If it is too high, it needs to be processed so that the redundant power supply component has an overheat detection function, effectively ensuring the safety of the redundant power supply component.

(4) By setting up symmetrical and mirrored electrical cabinets, it is convenient for operators to connect jumpers, so that the internal structure of the switching device cabinet is compact and the layout is reasonable.

Description of the drawings

Figure 1 is a schematic diagram of the electrical principle of the redundant power supply component of this application;

Figure 2 is a schematic cross-sectional view of the redundant power supply electrical cabinet structure of this application;

Figure 3 is a schematic diagram of the first operating mode of the switching device cabinet of this application;

Figure 4 is a schematic diagram of the second operating mode of the switching device cabinet of this application;

Figure 5 is a schematic diagram of the third operating mode of the switching device cabinet of this application.

Reference symbols: 1. Load; 2. Standby power supply; 3. Common power supply; 4. Switching device; 41. Jumper; 42. Overheating detection unit; 5. Power supply cabinet; 6. Switching device cabinet; 601. First cabinet body; 602, second cabinet; 61, load pole; 62, backup power pole; 63, common power pole; 64, jumper board; 603, warning sign.

Detailed ways

The present application will be further described in detail below with reference to the embodiments and drawings, but the implementation of the present application is not limited thereto.

In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limitations on this application.

A redundant power supply component, as shown in Figure 1, includes a load 1, a backup power supply 2 and a common power supply 3 for powering the load 1, and also includes a switching device 4 for switching the common power supply 3 and the backup power supply 2. In the first state, that is, when the common power supply 3 has no fault, the common power supply 3 is electrically connected to the load 1. In the second state, that is, when a common power supply 3 fails, the switching device 4 electrically connects the backup power supply 2 to the load 1. , the backup power supply 2 supplies power to the load 1, achieving N+1 redundancy of the power supply. The backup power supply 2 can be safely and conveniently put into the system to replace the failed power supply, ensuring the continuous operation of the load 1, and greatly improving the reliability of the power supply.

In detail, as shown in Figure 1, the common power supply 3 includes the positive output terminal of the common power supply 3 and the negative output terminal of the common power supply 3, and the backup power supply 2 includes the positive output terminal of the backup power supply 2 and the negative output terminal of the backup power supply 2.

The switching device 4 includes a first power input terminal, a second power input terminal and a public power output terminal. The first power input terminal is electrically connected to the output terminal of the common power supply 3 respectively, and the second power input terminal is electrically connected to the output terminal of the backup power supply 2. connection, the output terminal of the public power supply is electrically connected to the input terminal of load 1.

In the first state, that is, when the common power supply 3 has no fault, the first power input terminal is electrically connected to the public power output terminal, and the common power supply 3 supplies power to the load 1; in the second state, that is, when a common power supply 3 fails , the second power input terminal is electrically connected to the public power output terminal.

Further, the first power input terminal includes a first power positive input terminal and a first power negative input terminal, the second power input terminal includes a second power positive input terminal and a second power negative input terminal, and the common power output terminal includes a common power supply. The positive output terminal and the negative output terminal of the common power supply.

The positive output terminal of the common power supply 3 is electrically connected to the positive input terminal of the first power supply, the negative output terminal of the common power supply 3 is electrically connected to the negative input terminal of the first power supply, the positive output terminal of the backup power supply 2 is electrically connected to the positive input terminal of the second power supply, and the backup power supply 2. The negative output terminal is electrically connected to the negative input terminal of the second power supply. The positive output terminal of the public power supply and the negative output terminal of the public power supply are electrically connected to both ends of the load 1 respectively to provide power for the load 1.

The switching device 4 also includes a jumper 41, which is used to connect the positive input terminal of the first power supply to the positive output terminal of the public power supply, the negative input terminal of the first power supply and the negative output terminal of the public power supply during daily use inside the switching device 4. In case of failure, Connect the positive input terminal of the second power supply to the positive output terminal of the public power supply, and the negative input terminal of the second power supply to the negative output terminal of the public power supply.

The jumper 41 in the switching device 4 can effectively and reliably connect the power supply and the load 1. The connection method of the jumper 41 can simplify the layout and improve planning flexibility, making the circuit signal transmission more complete, stable and reliable.

Jumper 41 is connected by fastening bolts. The contact resistance is usually difficult to control. It is affected by the stress during connection and is highly random. Under high current conditions, there is a slight contact resistance. The heat at jumper 41 is serious. In order to ensure the safety of the redundant power supply components, as shown in Figure 1, the switching device 4 is also provided with an overheat detection unit 42. The overheat detection unit 42 includes a temperature detection component and an alarm component. The temperature detection component is specifically configured as a temperature control switch. Detect the temperature in the switching device 4. When the temperature exceeds the set threshold, the circuit where the temperature control switch is located is turned on and a high-level detection signal is output. The alarm component can be configured as an audible and visual alarm. The alarm component receives the detection signal and the high-level detection signal is output. The level detection signal drives the sound and light alarm to provide alarm prompts.

There are multiple temperature control switches, which are respectively installed at the connection of jumper 41 of switching device 4. The signal output ends of the multiple temperature control switches are connected with logic OR gates. The logic OR gate outputs a comprehensive detection signal. Any temperature control switch conducts Tongdu can output a detection signal and issue an alarm prompt to remind the staff that the internal temperature of the switching device 4 is too high and needs to be dealt with.

A redundant power supply electrical cabinet structure, as shown in Figure 2-3, is based on the redundant power supply components as mentioned above, including a power supply cabinet 5 for setting the common power supply 3 or a backup power supply 2 and a power supply cabinet 5 for setting all The switching device cabinet 6 of the switching device 4 is installed in a standard electrical cabinet.

In the embodiment of this application, three power supply cabinets 5 are configured, and the three power supply cabinets 5 are arranged adjacently. The switching device cabinet 6 is located on one side of the redundant power supply electrical cabinet structure, as shown in Figure 2, from left to right. Used to set the No. 1 common power supply 3, the No. 2 common power supply 3, the backup power supply 2 and the switching device 4.

As shown in Figure 3, the switching device cabinet 6 is provided with a common power pole 63 used to lead out the first power input terminal, a backup power pole 62 used to lead out the second power input terminal, and a load pole 61 used to lead out the public power output terminal. The load The pole 61 is arranged between the common power pole 63 and the backup power pole 62. The switching device cabinet 6 is provided with a jumper board for connecting the regular power pole 63 and the load pole 61 or the backup power pole 62 and the load pole 61. 64. The load pole 61 is set between the common power pole 63 and the backup power pole 62 to facilitate jumper connection, with easy operation, high efficiency, compact structure and reasonable layout. The jumper board 64 is connected to the backup power pole 62, the common power pole 63, and the load pole 61 by bolt connection, which is simple and reliable, and has a low probability of failure.

The switching device cabinet 6 is provided with a front-to-back symmetrical first cabinet 601 and a second cabinet 602. The first cabinet 601 is used to set the common power pole 63, the backup power pole 62 and the positive pole of the load pole 61. The second cabinet The body 602 is used to set the negative poles of the common power supply pole 63, the backup power supply pole 62 and the load pole 61. The positive and negative poles are mirror-symmetrically arranged to facilitate the operator's connection processing. The positive and negative poles are set separately to reduce the probability of operator connection errors.

When the No. 1 common power supply 3 and the No. 2 common power supply 3 are working normally, the connection method is as shown in Figure 3. The backup power supply 2 is not put into use, and the positive and negative poles of the backup power supply 2 are short-circuited and grounded.

When the No. 1 common power supply 3 is damaged, use the backup power supply 2 to replace the No. 1 common power supply 3. The connection method is shown in Figure 4. The No. 1 common power supply 3 is not put into use. The positive and negative poles of the No. 1 common power supply 3 are short-circuited and grounded.

When the No. 2 common power supply 3 is damaged, use the backup power supply 2 to replace the No. 2 common power supply 3. The connection method is shown in Figure 5. The No. 2 common power supply 3 is not put into use. The positive and negative poles of the No. 2 common power supply 3 are short-circuited and grounded.

The outer wall of the switching device cabinet 6 is also provided with a warning sign 603 indicating high voltage and high temperature, which visually reminds the warning staff and improves the safety performance of the redundant power supply electrical cabinet structure.

The above are only preferred embodiments of the present application. The protection scope of the present application is not limited to the above-mentioned embodiments. All technical solutions that fall under the ideas of the present application belong to the protection scope of the present application. It should be pointed out that for those of ordinary skill in the art, several improvements and modifications may be made without departing from the principles of the present application, and these improvements and modifications should also be regarded as the protection scope of the present application.

Claims (10)

1. A redundant power supply component, characterized in that it includes a backup power supply (2) for powering at least one load (1) and at least one common power supply (3); The redundant power supply component also includes a switching device (4) for switching the common power supply (3) and the backup power supply (2). The switching device (4) includes a first power input terminal and a second power input terminal. And a public power supply output terminal, the first power supply input terminal is electrically connected to the output terminal of the common power supply (3), the second power supply input terminal is electrically connected to the output terminal of the backup power supply (2), and the common power supply input terminal is electrically connected to the output terminal of the backup power supply (2). The output end of the power supply is electrically connected to the input end of the load (1); In the first state, the first power input terminal is electrically connected to the public power output terminal, and the common power supply (3) supplies power to the load (1); In the second state, the second power input terminal is electrically connected to the public power output terminal, and the backup power supply (2) supplies power to the load (1). 2. The redundant power supply component according to claim 1, characterized in that the common power supply (3) includes a positive output terminal of the common power supply and a negative output terminal of the common power supply, and the backup power supply (2) includes a positive output terminal of the backup power supply. terminal and the negative output terminal of the backup power supply; The first power input terminal includes a first power positive input terminal and a first power negative input terminal, the second power input terminal includes a second power positive input terminal and a second power negative input terminal, and the common power output terminal Including the positive output terminal of the public power supply and the negative output terminal of the public power supply; The positive output terminal of the common power supply is electrically connected to the positive input terminal of the first power supply, the negative output terminal of the common power supply is electrically connected to the negative input terminal of the first power supply, and the positive output terminal of the backup power supply is electrically connected to the positive input terminal of the second power supply. , the negative output terminal of the backup power supply is electrically connected to the negative input terminal of the second power supply, and the positive output terminal of the public power supply and the negative output terminal of the public power supply are electrically connected to both ends of the load (1) respectively. 3. The redundant power supply assembly according to claim 2, characterized in that the switching device (4) further includes a device for connecting the first power input terminal and the public power output terminal or the second power input terminal and the public power output terminal. jumper (41); The jumpers (41) are configured into two groups, respectively connecting the positive output terminal of the public power supply and the negative output terminal of the public power supply. 4. The redundant power supply component according to claim 3, characterized in that the switching device (4) is also provided with an overheat detection unit (42); The overheat detection unit (42) includes a temperature detection component and an alarm component. The temperature detection component is arranged inside the switching device (4), detects the temperature in the switching device (4) and outputs a detection signal. The alarm component receives and responds to the detection signal to issue an alarm prompt. 5. The redundant power supply assembly according to claim 4, wherein the temperature detection component is configured as a temperature control switch; There are multiple temperature control switches, each of which is installed at the jumper (41) of the switching device (4). The signal output ends of the plurality of temperature control switches are connected with logical OR gates, and the output of the logical OR gate the detection signal. 6. A redundant power supply electrical cabinet structure, characterized in that, based on the redundant power supply component according to any one of claims 1 to 5, including a device for setting the common power supply (3) or the backup power supply (2 )'s power supply cabinet (5) and the switching device cabinet (6) used to set the switching device (4); A plurality of the power supply cabinets (5) are arranged adjacently, and the switching device cabinet (6) is located on one side of the redundant power supply electrical cabinet structure. 7. The redundant power supply electrical cabinet structure according to claim 6, characterized in that the switching device cabinet (6) is provided with a common power pole (63) for drawing out the first power input end, and a common power pole (63) for drawing out the first power input terminal. The backup power pole (62) of the second power input terminal and the load pole (61) used to lead out the common power output terminal; The load pole (61) is arranged between the common power pole (63) and the backup power pole (62), and the switching device cabinet (6) is provided with a switch for connecting the regular power pole (63) and the load. pole (61) or the jumper board (64) between the backup power pole (62) and the load pole (61). 8. The redundant power supply electrical cabinet structure according to claim 7, characterized in that the switching device cabinet (6) is provided with a symmetrical first cabinet (601) and a second cabinet (602); The first cabinet (601) is used to set the common power pole, the backup power pole and the positive pole of the load pole (61), and the second cabinet (602) is used to set the regular power pole (63), the backup power pole (62) and the negative pole of the load pole (61). 9. The redundant power supply electrical cabinet structure according to claim 7, characterized in that bolts are used between the jumper board (64) and the backup power pole (62), the common power pole (63) and the load pole (61). The connection method of the connection. 10. The redundant power supply electrical cabinet structure according to claim 6, characterized in that a warning sign (603) indicating high voltage and high temperature is provided on the outer wall of the switching device cabinet (6).