Power supply multi-module parallel operation management system and power supply

Abstract

The utility model relates to the technical field of power supplies, in particular to a power supply multi-module parallel operation management system and a power supply, the power supply multi-module parallel operation management system comprises an MCU and a plurality of module power supply groups, the MCU is configured to execute voltage sampling and power equalization of power supply modules, and the plurality of module power supply groups have different output levels; each module power pack is composed of N power modules, N is a positive integer larger than or equal to 2, the input sides of the power modules in the same module power pack are connected in parallel and connected to the MCU through communication lines, and the output sides of the power modules in the same output level module power pack are connected in parallel. According to the utility model, the MCU is used as the main control unit for sampling, the output power is obtained and equally divided, and each module power supply group and the internal power supply module output according to the given power, so that when a power supply needs to be amplified, only the number of corresponding power supply modules needs to be increased in the system, and the power supply does not need to be redesigned; and the power amplification cost and the waiting time are effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply technical field, specifically, relate to a kind of power supply multi-module parallel management system and power supply. BACKGROUND

[0002] With the development of power electronics technology, the power capacity used by power electronic equipment is continuously improved, which is particularly evident in the military, medical equipment, power system and other industries. At present, there is no good solution to expand the power supply power, because the power supply is not designed to consider the subsequent power expansion problem, so it can only be redesigned to achieve power expansion of power supply, which will greatly increase the cost and waiting time.

[0003] A kind of multi-module parallel control method provided by Chinese invention patent with publication number CN110190593A, as shown in Figure 1 The prior art connects the main module and the secondary module in parallel, and samples by the main module as the master control unit, obtains the output power and divides it equally, and each slave module outputs according to the power given. Since only the main module samples, when expanding, the main module needs to be redesigned; in addition, when the main module is abnormal, the whole system will be paralyzed.

[0004] Therefore, how to realize the expansion of power supply power and the parallel management of multiple modules is a technical problem to be solved at present. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of power supply multi-module parallel management system and power supply, accommodate multiple level module power supply group, and realize the parallel control between the same level by MCU, so as to realize the expansion of power supply power and the parallel management of multiple modules.

[0006] The embodiment of the utility model realizes by the following technical scheme: a kind of power supply multi-module parallel management system, including control unit, the control unit is configured to perform voltage sampling and power division of power module, the control unit is MCU, further include multiple module power supply groups, the multiple module power supply groups have different output levels;

[0007] The module power supply group is composed of N power modules, N is greater than or equal to 2 positive integer, the input side of the power module in the same output level module power supply group is connected to MCU by communication line in parallel, and the output side of the power module in the same output level module power supply group is connected to MCU by communication line in parallel.

[0008] According to a preferred embodiment, each of the power supply modules is provided with the following terminals: output voltage terminals ±Vo, remote control terminals ±CNT, input voltage terminals ±Vin, output voltage adjustment terminals TRIM, module address coding terminals ADR, fault alarm terminals PG, auxiliary source terminals AUX, communication terminals ±RS485 and output voltage compensation terminals ±S.

[0009] According to a preferred embodiment, the output voltage terminals ±Vo are arranged on a first side of the power supply module, the remote control terminals ±CNT and the input voltage terminals ±Vin are arranged on a second side opposite the first side of the power supply module, and the output voltage adjustment terminals TRIM, the module address coding terminals ADR, the fault alarm terminals PG, the auxiliary source terminals AUX, the communication terminals ±RS485 and the output voltage compensation terminals ±S are arranged between the first side and the second side of the power supply module.

[0010] According to a preferred embodiment, the module address coding terminals ADR of the power supply modules in the same output level module power supply group are connected to ground through resistors with different resistance values.

[0011] According to a preferred embodiment, the input sides of the power supply modules in the same output level module power supply group are connected in parallel and connected to the MCU through a communication line connecting the communication terminals ±RS485.

[0012] According to a preferred embodiment, the system further comprises a host computer, which is provided with an alarm module and is in communication connection with the MCU.

[0013] The utility model also provides a power supply, including the power supply multi -module management system of above -mentioned.

[0014] The power supply multi -module management system and the power supply provided by the utility model have at least the following advantages and beneficial effects: (1) the MCU is used as the main control unit to sample and obtain the output power and divide it, and each module power supply group and internal power supply module outputs according to the given power, so that when the power supply needs to be expanded, the number of corresponding power supply modules in the system can be increased, thereby avoiding the need to redesign the power supply, effectively reducing the power expansion cost and waiting time; (2) different output level module power supply groups can be accommodated, and the power supply modules with the same output level are connected in parallel, so that each power supply module in the system can be managed in time and effectively; (3) the MCU can read the real-time data of each power supply module, greatly improving the safety of the system; (4) compared with the prior art, the utility model has the advantages of more complete functions and higher safety, can resist a certain degree of risk, and will not cause the entire system to be paralyzed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A control schematic provided for the prior art;

[0016] Figure 2 A principle block diagram provided for the embodiment 1 of the utility model;

[0017] Figure 3 A structure schematic view of the power module provided for the embodiment 2 of the utility model. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Embodiment 1

[0020] Figure 1 A principle block diagram of a power supply multi-module parallel management system provided by the embodiment of the utility model. Referring to Figure 1 As shown in the figure, the power supply multi-module parallel management system comprises a control unit and a plurality of module power supply groups, and the plurality of module power supply groups have different output levels.

[0021] In the embodiment, the control unit is an MCU, and the real-time data of each power module is read through the MCU. Specifically, the MCU is configured to perform voltage sampling and power equalization of the power module. Specifically, the MCU samples the voltage of each module power supply group, calculates the required output power of the load according to the sampling data, and then equalizes the output power according to the actual operation of each module power supply group, thereby greatly improving the safety of the system.

[0022] The module power supply group is composed of N power modules, N is a positive integer greater than or equal to 2, which is not specifically limited here. The input side of the power module in the same output level module power supply group is connected to the MCU through the communication line in parallel, so that each power module in the system can be managed in time and effectively. The output side of the power module in the same output level module power supply group is connected to the load in parallel.

[0023] It should be noted that the output power of each power module obtained by equalization is broadcasted to each power module through the communication line, and each power module receives the power given by the MCU and outputs the corresponding power through its own control. Compared with the prior art, the utility model has the advantages of more complete functions and higher safety, can resist a certain degree of risk, and will not cause the entire system to be paralyzed.

[0024] It should be noted that in the embodiment, the MCU is used as a master unit to sample, obtain output power and divide the power, and each module power supply group and internal power module outputs according to the given power, so that when there is an expansion demand for the power supply, the number of corresponding power modules in the system can be increased, thereby avoiding the need to redesign the power supply, effectively reducing the power expansion cost and waiting time.

[0025] Embodiment 2

[0026] The embodiment further illustrates the design of the power module based on the technical solution provided in Embodiment 1.

[0027] In the embodiment, as shown in FIG. 1, each of the power modules is configured with the following terminals: output voltage terminals ±Vo, remote control terminals ±CNT, input voltage terminals ±Vin, output voltage adjustment terminals TRIM, module address coding terminals ADR, fault alarm terminals PG, auxiliary source terminals AUX, communication terminals ±RS485, and output voltage compensation terminals ±S. Figure 2

[0028] Among them, the module address coding terminals ADR of the power modules in the same output level module power supply group are connected to resistors with different resistances to number the power modules in the module power supply group; the input sides of the power modules in the same output level module power supply group are connected in parallel and connected to the MCU through the communication lines connected to the communication terminals ±RS485.

[0029] In the embodiment, the output voltage terminals ±Vo are configured on the first side of the power module, the remote control terminals ±CNT and the input voltage terminals ±Vin are configured on the second side opposite to the first side of the power module, and the output voltage adjustment terminals TRIM, the module address coding terminals ADR, the fault alarm terminals PG, the auxiliary source terminals AUX, the communication terminals ±RS485, and the output voltage compensation terminals ±S are configured between the first side and the second side of the power module.

[0030] In the embodiment, the output voltage terminals ±Vo are provided with three groups, specifically pins 5 to 10; the remote control terminals ±CNT are pins 1 to 2, the input voltage terminals ±Vin are pins 3 to 4, the output voltage adjustment terminals TRIM are pin A1, the module address coding terminals ADR are pin A3, the fault alarm terminals PG are pin A4, the auxiliary source terminals AUX are pin A5, the communication terminals ±RS485 are pins A6 and A8, and the output voltage compensation terminals ±S are pins A7 and A9. Optionally, it also includes pin A2, which is used to connect the parallel bus; and pin A10, which is used for synchronous starting.

[0031] Embodiment 3 ​

[0032] The embodiment is further improved based on the technical scheme provided in any one of Embodiment 1 to Embodiment 2, and specifically as follows:

[0033] In the embodiment, an upper computer is further included, which is in communication connection with the MCU for interaction, receives the external output communication of the MCU, and remotely monitors the running state of each module power supply group; further, the upper computer is configured with an alarm module, when the specific running state of each module power supply group is monitored to be abnormal, the alarm module can send an alarm to prevent accidents.

[0034] In addition, the upper computer can also send relevant instructions to remotely control each module power supply group, so as to realize remote control of the power module opening / closing.

[0035] Embodiment 4

[0036] The embodiment is based on the technical scheme provided in any one of Embodiment 1 to Embodiment 3, and provides a power supply; the power supply includes the power supply multi-module parallel operation management system as described in any one of Embodiment 1 to Embodiment 3.

[0037] The above is only the preferred embodiment of the utility model, and is not used for limiting the utility model, and the utility model can have various changes and changes for the person skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A multi-module power supply parallel operation management system comprising a control unit configured to perform voltage sampling and power sharing of power supply modules, characterized in that, The control unit is an MCU, and further comprises a plurality of module power supply groups having different output levels; The module power supply groups are composed of N power supply modules, N is a positive integer greater than or equal to 2, the input sides of the power supply modules in the same output level module power supply group are connected in parallel and connected to the MCU through a communication line, and the output sides of the power supply modules in the same output level module power supply group are connected in parallel.

2. The power supply multi-module parallel operation management system of claim 1, wherein, Each of the power supply modules is provided with the following terminals: output voltage terminals ±Vo, remote control terminals ±CNT, input voltage terminals ±Vin, output voltage adjustment terminals TRIM, module address coding terminals ADR, fault alarm terminals PG, auxiliary source terminals AUX, communication terminals ±RS485, and output voltage compensation terminals ±S.

3. The power supply multi-module parallel operation management system of claim 2, wherein, The output voltage terminals ±Vo are arranged on a first side of the power supply module, the remote control terminals ±CNT and the input voltage terminals ±Vin are arranged on a second side opposite to the first side of the power supply module, and the output voltage adjustment terminals TRIM, the module address coding terminals ADR, the fault alarm terminals PG, the auxiliary source terminals AUX, the communication terminals ±RS485, and the output voltage compensation terminals ±S are arranged between the first side and the second side of the power supply module.

4. The power supply multi-module parallel operation management system of claim 2, wherein, The module address coding terminals ADR of the power supply modules in the same output level module power supply group are connected to resistors with different resistances.

5. The power supply multi-module parallel operation management system of claim 2, wherein, The input sides of the power supply modules in the same output level module power supply group are connected in parallel and connected to the MCU through a communication line connecting the communication terminals ±RS485.

6. The power supply multi-module parallel operation management system according to any one of claims 1 to 5, wherein, Further comprising a host computer, the host computer is provided with an alarm module, and the host computer is in communication connection with the MCU.

7. A power supply, characterized by A power supply multi-module parallel management system comprising the power supply module as claimed in any one of claims 1 to 6.

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