CN113809939A - AC/DC distribution system and method - Google Patents
AC/DC distribution system and method Download PDFInfo
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- CN113809939A CN113809939A CN202111125388.4A CN202111125388A CN113809939A CN 113809939 A CN113809939 A CN 113809939A CN 202111125388 A CN202111125388 A CN 202111125388A CN 113809939 A CN113809939 A CN 113809939A
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- 238000004891 communication Methods 0.000 claims description 10
- 230000013011 mating Effects 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
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Abstract
The application discloses an alternating current and direct current power distribution system and method, relates to the technical field of power supply, and particularly relates to an alternating current and direct current power distribution system and method. The specific implementation scheme is as follows: the alternating current-direct current power distribution system comprises a rectification module, an inversion module, a first bus bar and a third bus bar; the rectification module is respectively and electrically connected with the first bus bar and the second bus bar, and the second bus bar is also respectively and electrically connected with the inversion module and the direct current load; the rectifying module is used for converting the alternating current received by the first bus bar into target direct current with first preset voltage and inputting the target direct current into the direct current load and the inverter module through the second bus bar; the third bus bar is respectively and electrically connected with the inversion module and the alternating current load; the inverter module is used for converting the target direct current into target alternating current with second preset voltage and inputting the target alternating current into the alternating current load through the third bus bar. This alternating current-direct current distribution system can provide more nimble changeable voltage form, can satisfy the power consumption demand.
Description
Technical Field
The present disclosure relates to the field of power supply technologies, and in particular, to an ac/dc power distribution system and method.
Background
In the power supply scenario of some devices, the devices may have power supply requirements in the form of multiple voltages. However, the power supply form provided by the existing power distribution system is fixed, and it is difficult to provide various voltage forms according to the real-time power supply requirement, and the power consumption requirement of the equipment cannot be met.
Disclosure of Invention
The disclosure provides an AC/DC power distribution system and method.
According to a first aspect of the present disclosure, there is provided an ac/dc power distribution system comprising: the rectifier module, the inverter module, the first bus bar and the third bus bar;
the rectification module is respectively and electrically connected with the first bus bar and the second bus bar, and the second bus bar is also respectively and electrically connected with the inversion module and the direct current load;
the rectifying module is used for converting the alternating current received by the first bus bar into target direct current with first preset voltage and inputting the target direct current into the direct current load and the inverter module through the second bus bar;
the third bus bar is respectively and electrically connected with the inversion module and the alternating current load;
the inverter module is used for converting the target direct current into target alternating current with second preset voltage and inputting the target alternating current into the alternating current load through the third bus bar.
In the embodiment of the present disclosure, the rectifying module includes a plurality of rectifying modules, each of which is electrically connected to the first bus bar and the second bus bar;
and a first switch is arranged on a branch circuit where each rectifying module is positioned, and the first switch is used for controlling the on-off state of the rectifying module.
In the embodiment of the present disclosure, the ac/dc power distribution system further includes a controller; a controller is in communication with each of the first switches for an open and closed state of the first switches.
In the embodiment of the present disclosure, the inverter module includes a plurality of inverter modules, each of which is electrically connected to the second bus bar and the third bus bar;
and a second switch is arranged on a branch where each inversion module is positioned, and the second switch is used for controlling the on-off of the inversion module.
In the embodiment of the present disclosure, the ac/dc power distribution system further includes a controller; the controller is in communication connection with each second switch for the on and off state of the second switch.
In the embodiment of the present disclosure, the ac/dc power distribution system further includes a storage battery for outputting a target dc power having a first preset voltage;
the storage battery is electrically connected with the direct current load, and/or the storage battery is electrically connected with the inversion module through the second bus bar.
According to a second aspect of the present disclosure, there is provided an ac/dc power distribution method applied to a dc mating power distribution system provided by the first aspect of the present disclosure, including:
inputting external alternating current to the rectifying module through the first bus;
the alternating current is converted into target direct current with first preset voltage based on the rectifying module, and the target direct current is input into the direct current load and the inversion module through the second bus;
and converting the target direct current into target alternating current with second preset voltage based on the inversion module, and inputting the target alternating current into the alternating current load through the third bus bar.
In this disclosed embodiment, the rectifier module includes a plurality of rectifier modules, and based on the rectifier module with alternating current conversion to the target direct current that has first preset voltage, include:
closing a first switch corresponding to at least one rectifying module;
and converting the alternating current into a target direct current with a first preset voltage based on the rectifying module with the closed corresponding first switch.
In this disclosed embodiment, the contravariant module includes a plurality of contravariant modules, based on the contravariant module with the target direct current conversion target alternating current that has the second preset voltage, includes:
closing a second switch corresponding to at least one inversion module;
and converting the target direct current into a target alternating current with a second preset voltage based on the inverter module with the closed corresponding second switch.
In the embodiment of the present disclosure, the ac/dc power distribution method further includes: when the external alternating current is in a power-off state, the target direct current is input to the direct current load and/or the inverter module through the storage battery.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present disclosure, nor do they limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.
The technical scheme provided by the disclosure has the following beneficial effects:
in the technical scheme of this disclosure, alternating current-direct current distribution system can convert external input's alternating current into direct current and alternating current that have specified voltage to for the direct current load and the alternating current load power supply that correspond, this alternating current-direct current distribution system can provide more nimble changeable voltage form, can satisfy the power consumption demand of different scenes, ensures that the consumer can normal use.
Drawings
The drawings are included to provide a better understanding of the present solution and are not to be construed as limiting the present disclosure. Wherein:
fig. 1 is a schematic structural diagram illustrating an ac/dc power distribution system according to an embodiment of the present disclosure;
FIG. 2 illustrates a communication diagram of a controller and a switch provided by an embodiment of the present disclosure;
fig. 3 shows a schematic flow chart of an ac/dc power distribution method according to an embodiment of the present disclosure.
The reference numerals are explained as follows:
1-a rectification module; 11-a rectification module;
2-an inverter module; 21-an inverter module;
3-a first busbar; 4-a second busbar; 5-a third busbar; 6-a first switch;
7-a controller; 8-a second switch; 9-storage battery.
Detailed Description
Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings, in which various details of the embodiments of the disclosure are included to assist understanding, and which are to be considered as merely exemplary. 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 disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
In the power supply scenario of some devices, the devices may have power supply requirements in the form of multiple voltages. However, the power supply form provided by the existing power distribution system is fixed, and it is difficult to provide various voltage forms according to the real-time power supply requirement, and the power consumption requirement of the equipment cannot be met.
In the power supply scenario of some devices, the devices may have power supply requirements in the form of multiple voltages. However, the existing power distribution system is difficult to provide various voltage forms according to power supply requirements, and cannot meet the power utilization requirements of equipment. Taking a server of a data center as an example, the power supply voltage required by the server may be 48V direct current, 220V alternating current, 240V direct current, 336V direct current, and the like, the voltage form actually required by the server generally needs to be determined according to the needs of users, and the current power distribution system is difficult to provide various voltage forms according to the actual power supply needs of the server, and cannot meet the power consumption needs of the server.
The disclosed embodiments provide an ac/dc power distribution system and method, which aim to solve at least one of the above technical problems in the prior art.
Fig. 1 shows a schematic structural diagram of an ac/dc power distribution system provided in an embodiment of the present disclosure, and as shown in fig. 1, the ac/dc power distribution system includes a rectification module 1, an inverter module 2, a first bus bar 3, a second bus bar 4, and a third bus bar 5. The rectifier module 1 is used for converting alternating current into direct current with first preset voltage, and the inverter module 2 is used for converting direct current into alternating current with second preset voltage, and the specific values of the first preset voltage and the second preset voltage can be determined according to actual design requirements. The bus bar, also referred to as a bus bar or a bus bar, is used to connect a plurality of electrical lines.
The input end of the first bus bar 3 is used for being connected with external alternating current (such as 380V commercial power), the rectifier module 1 is respectively electrically connected with the first bus bar 3 and the second bus bar 4, and the second bus bar 4 is also respectively electrically connected with the inverter module 2 and the dc load. Specifically, the output end of the first bus bar 3 is connected with the input end of the rectifier module 1, the output end of the rectifier module 1 is connected with the input end of the second bus bar 4, and the output end of the second bus bar 4 is electrically connected with the input end of the inverter module 2 and the input end of the dc load respectively. The rectifier module 1 is configured to convert the ac power received by the first bus bar 3 into a target dc power having a first preset voltage, and input the target dc power to the dc load and the inverter module 2 through the second bus bar 4. It will be appreciated that the first predetermined voltage matches the input voltage of the dc load. It is understood that the specific type of dc load may depend on the application scenario, for example, the dc load may be a dc server.
The third bus bar 5 is electrically connected to the inverter module 2 and the ac load, specifically, the output terminal of the inverter module 2 is electrically connected to the input terminal of the third bus bar 5, and the output terminal of the third bus bar 5 is electrically connected to the input terminal of the ac load. The inverter module 2 is configured to convert the target dc power into a target ac power having a second preset voltage, and input the target ac power to an ac load through a third bus bar 5. It will be appreciated that the second predetermined voltage matches the input voltage of the ac load. The specific type of the ac load may depend on the application scenario, for example, the ac load may be an ac server.
The alternating current-direct current power distribution system that this disclosed embodiment provided can convert external input's alternating current into direct current and alternating current that have specified voltage to for the direct current load and the alternating current load power supply that correspond, this alternating current-direct current power distribution system can provide more nimble changeable voltage form, can satisfy the power consumption demand of different scenes, ensures that the consumer can normal use.
In the embodiment of the present disclosure, the rectifier module 1 includes a plurality of rectifier modules 11, and each rectifier module 11 is electrically connected to the first bus bar 3 and the second bus bar 4. A first switch 6 is arranged on a branch where each rectification module 11 is located, and the first switch 6 is used for controlling the on-off state of the rectification module 11. The number of the rectifier modules 11 used for working in the rectifier module group 1 can be adjusted in real time by adjusting the open/close state of each first switch 6.
The connection mode of the first switch 6 in the branch circuit may be determined according to actual design requirements, as shown in fig. 1, one end of the first switch 6 is electrically connected to the output end of the first bus bar 3, the other end of the first switch 6 is electrically connected to the input end of the rectifier module 11, and the output end of the rectifier module 11 is electrically connected to the input end of the second bus bar 4. Or, the input end of the rectifying module 11 is electrically connected to the output end of the first bus bar 3, the output end of the rectifying module 11 is electrically connected to one end of the first switch 6, and the other end of the first switch 6 is electrically connected to the input end of the second bus bar 4. The rectification module 11 may be an AC/DC rectifier, which is a device for converting AC power into DC power, and the power flow direction of the AC/DC rectifier may be bidirectional, where the power flow from the power supply to the load is called rectification, and the power flow from the load back to the power supply is called active inversion.
In the disclosed embodiment, the ac/dc power distribution system further includes a controller 7. Fig. 2 shows a communication schematic diagram of the controller and the switches provided by the embodiment of the disclosure, and as shown in fig. 2, the controller 7 is connected in communication with each first switch 6 for the open/close state of the first switch 6. It will be appreciated that the communication connection may be a wired connection or a wireless connection, and the controller 7 is configured to send control commands to the first switch 6 to control the opening or closing of the first switch 6, so as to ensure the personal safety of the worker.
In the embodiment of the present disclosure, the inverter module 2 includes a plurality of inverter modules 21, and each inverter module 21 is electrically connected to the second bus bar 4 and the third bus bar 5. A second switch 8 is arranged on a branch where each inversion module 21 is located, and the second switch 8 is used for controlling the on-off of the inversion module 21. The number of the inverter modules 21 used for working in the inverter module 2 can be adjusted in real time by adjusting the on-off state of each second switch 8 in the embodiment of the present disclosure.
The access mode of the second switch 8 in the branch circuit may be determined according to actual design requirements, as shown in fig. 1, one end of the second switch 8 is electrically connected to the output end of the second bus bar 4, the other end of the second switch 8 is electrically connected to the input end of the inverter module 21, and the output end of the inverter module 21 is electrically connected to the input end of the third bus bar 5. Or, the input end of the inverter module 21 is electrically connected to the output end of the second bus bar 4, the output end of the inverter module 21 is electrically connected to one end of the second switch 8, and the other end of the second switch 8 is electrically connected to the input end of the third bus bar 5. The inverter module 21 may be a DC/AC converter that converts a DC power of the battery pack into an AC power having a stable output voltage and frequency.
In the disclosed embodiment, as shown in fig. 2, the ac/dc power distribution system further includes a controller 7. The controller 7 is in communication connection with each second switch 8 for the open and closed state of the second switch 8. It will be appreciated that the communication connection may be a wired connection or a wireless connection and the controller 7 is arranged to send control commands to the second switch 8 to control the opening or closing of the first switch 6.
In the embodiment of the present disclosure, the ac/dc power distribution system further includes a battery 9 for outputting a target dc power having a first preset voltage.
Alternatively, the storage battery 9 is electrically connected to a dc load, and when the external ac power is in a power-off state, the target dc power is input to the dc load through the storage battery 9.
Alternatively, the storage battery 9 is electrically connected to the inverter module 2 through the second bus bar 4. Specifically, the output end of the storage battery 9 is electrically connected to the input end of the second bus bar 4, and the output end of the second bus bar 4 is electrically connected to the input end of the inverter module 2. When the external alternating current is in a power-off state, the target direct current is input to the inverter module 2 through the storage battery 9, and the inverter module 2 is configured to convert the target direct current into the target alternating current having the second preset voltage and input the target alternating current to the alternating current load through the third bus bar 5.
Optionally, the inverter module 2 includes a plurality of inverter modules 21, a second switch 8 is disposed on a branch where each inverter module 21 is located, and the second switch 8 is used to control on/off of the inverter module 21.
The output end of the storage battery 9 is electrically connected with the input end of the second busbar 4, one end of the second switch 8 is electrically connected with the output end of the second busbar 4, the other end of the second switch 8 is electrically connected with the input end of the inversion module 21, and the output end of the inversion module 21 is electrically connected with the input end of the third busbar 5. Or, the output end of the storage battery 9 is electrically connected with the input end of the second bus bar 4, the input end of the inverter module 21 is electrically connected with the output end of the second bus bar 4, the output end of the inverter module 21 is electrically connected with one end of the second switch 8, and the other end of the second switch 8 is electrically connected with the input end of the third bus bar 5.
Based on the same inventive concept, an embodiment of the present disclosure further provides an ac/dc power distribution method, where the method is applied to the dc mating power distribution system provided by the above embodiment of the present disclosure, and fig. 3 shows a schematic flow diagram of the ac/dc power distribution method provided by the embodiment of the present disclosure, and as shown in fig. 3, the method mainly includes the following steps:
s310: an external ac power is input to the rectifier module 1 through the first bus bar 3.
The input end of the first bus bar 3 is used for being connected with external alternating current (e.g. 380V commercial power), the output end of the first bus bar 3 is connected with the input end of the rectifier module 1, and the first bus bar 3 receives the external alternating current and then inputs the alternating current into the rectifier module 1.
S320: the alternating current is converted into a target direct current with a first preset voltage based on the rectifying module 1, and the target direct current is input to the direct current load and the inverter module 2 through the second bus bar 4.
The rectifier module 1 is electrically connected with the first bus bar 3 and the second bus bar 4 respectively, and the second bus bar 4 is further electrically connected with the inverter module 2 and the dc load respectively. Specifically, the output end of the first bus bar 3 is connected with the input end of the rectifier module 1, the output end of the rectifier module 1 is connected with the input end of the second bus bar 4, and the output end of the second bus bar 4 is electrically connected with the input end of the inverter module 2 and the input end of the dc load respectively. The rectifier module 1 is configured to convert the ac power received by the first bus bar 3 into a target dc power having a first preset voltage, and input the target dc power to the dc load and the inverter module 2 through the second bus bar 4.
In the embodiment of the present disclosure, the rectifier module 1 includes a plurality of rectifier modules 11 and a plurality of first switches 6, and reference may be made to the foregoing content for the connection manner of the rectifier modules 11 and the first switches 6 in the ac/dc power distribution system, which is not described herein again. In step S320, the first switch 6 corresponding to at least one rectifier module 11 may be closed; based on the rectifier module 11 with the corresponding first switch 6 closed, the alternating current is converted into a target direct current with a first preset voltage. For example, the first switch 6 corresponding to 3 rectifier modules 11 may be closed, and then the alternating current may be converted into the target direct current having the first preset voltage based on the 3 rectifier modules 11. Alternatively, the controller 7 may send a control instruction to the corresponding first switch 6, so as to control the opening or closing of the first switch 6.
S330: the target direct current is converted into a target alternating current with a second preset voltage based on the inverter module 2, and the target alternating current is input to the alternating current load through the third bus bar 5.
The third bus bar 5 is electrically connected to the inverter module 2 and the ac load, specifically, the output terminal of the inverter module 2 is electrically connected to the input terminal of the third bus bar 5, and the output terminal of the third bus bar 5 is electrically connected to the input terminal of the ac load. The inverter module 2 is configured to convert the target dc power into a target ac power having a second preset voltage, and input the target ac power to an ac load through a third bus bar 5. It will be appreciated that the second predetermined voltage matches the input voltage of the ac load. The specific type of the ac load may depend on the application scenario, for example, the ac load may be an ac server.
In the embodiment of the present disclosure, the inverter module 2 includes a plurality of inverter modules 21 and a plurality of second switches 8, and the connection manner of the inverter modules 21 and the second switches 8 in the ac/dc power distribution system may refer to the foregoing, and is not described herein again. In step S330, the second switch 8 corresponding to at least one inverter module 21 may be closed; and converting the target direct current into a target alternating current with a second preset voltage based on the inversion module 21 with the corresponding second switch 8 closed. For example, the second switches 8 corresponding to the 3 inverter modules 21 may be closed, and then the target direct current may be converted into the target alternating current having the second preset voltage based on the 3 inverter modules 21. Alternatively, the controller 7 may send a control instruction to the corresponding second switch 8, so as to control the opening or closing of the first switch 6.
In the embodiment of the present disclosure, when the external ac power is in the power-off state, the storage battery 9 of the ac-dc power distribution system may provide power for the dc load and/or the ac load, and specifically, the target dc power is input to the dc load and/or the inverter module 2 through the storage battery 9.
Alternatively, the storage battery 9 is electrically connected to a dc load, and when the external ac power is in a power-off state, the target dc power is input to the dc load through the storage battery 9.
Alternatively, the storage battery 9 is electrically connected to the inverter module 2 through the second bus bar 4. Specifically, the output end of the storage battery 9 is electrically connected to the input end of the second bus bar 4, and the output end of the second bus bar 4 is electrically connected to the input end of the inverter module 2. When the external alternating current is in a power-off state, the target direct current is input to the inverter module 2 through the storage battery 9, and the inverter module 2 is configured to convert the target direct current into the target alternating current having the second preset voltage and input the target alternating current to the alternating current load through the third bus bar 5.
The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention in the present disclosure is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is possible without departing from the inventive concept. For example, the above features and (but not limited to) the features disclosed in this disclosure having similar functions are replaced with each other to form the technical solution.
Claims (10)
1. An AC/DC power distribution system comprising: the rectifier module, the inverter module, the first bus bar and the third bus bar;
the rectification module is respectively and electrically connected with the first bus bar and the second bus bar, and the second bus bar is also respectively and electrically connected with the inversion module and the direct current load;
the rectifying module is used for converting the alternating current received by the first bus bar into a target direct current with a first preset voltage and inputting the target direct current to the direct current load and the inverter module through the second bus bar;
the third bus bar is electrically connected with the inverter module and the alternating current load respectively;
the inverter module is used for converting the target direct current into target alternating current with second preset voltage and inputting the target alternating current into the alternating current load through the third bus bar.
2. The system of claim 1, wherein the rectifier module comprises a plurality of rectifier modules, each of the rectifier modules electrically connected to the first and second busbars;
and a first switch is arranged on a branch circuit where each rectifying module is positioned, and the first switch is used for controlling the on-off state of the rectifying module.
3. The system of claim 2, further comprising a controller; the controller is in communication connection with each first switch and is used for switching on and off states of the first switches.
4. The system of claim 1, wherein the inverter module comprises a plurality of inverter modules, each of the inverter modules being electrically connected to the second and third busbars;
and a second switch is arranged on a branch circuit where each inversion module is located, and the second switch is used for controlling the on-off of the inversion module.
5. The system of claim 4, further comprising a controller; the controller is in communication connection with each second switch and is used for switching on and off states of the second switches.
6. The system of claim 1, further comprising a battery for outputting a target direct current having a first preset voltage;
the storage battery is electrically connected with the direct current load, and/or the storage battery is electrically connected with the inverter module through the second bus bar.
7. An alternating current and direct current power distribution method applied to the direct current mating power generation system according to any one of claims 1 to 6, comprising:
inputting external alternating current to the rectifying module through the first bus;
converting the alternating current into a target direct current with a first preset voltage based on the rectifying module, and inputting the target direct current into the direct current load and the inverting module through a second bus;
and converting the target direct current into a target alternating current with a second preset voltage based on an inverter module, and inputting the target alternating current into the alternating current load through the third bus bar.
8. The method of claim 7, wherein the rectifying module comprises a plurality of rectifying modules, and the converting the alternating current to a target direct current with a first preset voltage based on the rectifying module comprises:
closing a first switch corresponding to at least one rectifying module;
and converting the alternating current into a target direct current with a first preset voltage based on the rectifying module with the closed corresponding first switch.
9. The method of claim 7, wherein the inverting module comprises a plurality of inverting modules, and the inverting module based converting the target direct current into a target alternating current with a second preset voltage comprises:
closing a second switch corresponding to at least one inversion module;
and converting the target direct current into a target alternating current with a second preset voltage based on the inverter module with the closed corresponding second switch.
10. The method of claim 8, further comprising:
when the external alternating current is in a power-off state, the target direct current is input to the direct current load and/or the inverter module through the storage battery.
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Cited By (1)
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| CN114243851A (en) * | 2021-12-24 | 2022-03-25 | 李斯特测试设备(上海)有限公司 | Starting power supply system and test equipment |
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| CN102468682A (en) * | 2010-11-05 | 2012-05-23 | 湖南丰日电源电气股份有限公司 | High voltage direct current power supply system for both alternating current purpose and direct current purpose |
| CN106329709A (en) * | 2015-06-29 | 2017-01-11 | 长沙湘愿节能科技有限公司 | AC-DC integrated power supply used for transformer station |
| CN105703464A (en) * | 2016-03-17 | 2016-06-22 | 慈溪市源顺光电科技有限公司 | Power supply system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243851A (en) * | 2021-12-24 | 2022-03-25 | 李斯特测试设备(上海)有限公司 | Starting power supply system and test equipment |
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