CN114498903A

CN114498903A - Power distribution system and power distribution method

Info

Publication number: CN114498903A
Application number: CN202210139557.8A
Authority: CN
Inventors: 吴双鹤; 李莺; 李代程
Original assignee: Beijing Baidu Netcom Science and Technology Co Ltd
Current assignee: Beijing Baidu Netcom Science and Technology Co Ltd
Priority date: 2022-02-15
Filing date: 2022-02-15
Publication date: 2022-05-13

Abstract

The disclosure provides a power distribution system and a power distribution method, relates to the technical field of electronic circuits, and particularly relates to the technical field of uninterrupted power supply of a data center. The specific implementation scheme is as follows: a power module comprising a first grid power supply and a second grid power supply; the power router comprises a first control module, a first conversion module and a second conversion module, wherein the first conversion module is electrically connected with a first power grid power supply and the first control module, and the second conversion module is electrically connected with a second power grid power supply and the first control module; the second control module is electrically connected with the power supply module and the power router and is configured to send a power supply switching signal to the first control module when the current working power grid power supply is detected to be out of order; wherein the first control module is configured to control the conversion module corresponding to the non-faulty grid power to operate in response to receiving the power switching signal, wherein the current operating grid power comprises the first grid power or the second grid power.

Description

Power distribution system and power distribution method

Technical Field

The disclosure relates to the technical field of electronic circuits, in particular to the technical field of uninterrupted power supply of a data center. And more particularly, to a power distribution system and method.

Background

The data center is a core area for information integration and is provided with a load for bearing storage or calculation functions. In order to ensure the normal operation of the data center, the data center needs to have sufficient power supply guarantee. The power Distribution systems of the data center may include 2N (i.e., double bus) power Distribution systems, DR (distributed Redundancy) systems, or RR (Reserve Redundancy) systems.

Disclosure of Invention

The present disclosure provides a power distribution system and a power distribution method.

According to an aspect of the present disclosure, there is provided a power distribution system including: a power module comprising a first grid power supply and a second grid power supply; the power router comprises a first control module, a first conversion module and a second conversion module, wherein the first conversion module is electrically connected with the first power grid power supply and the first control module, and the second conversion module is electrically connected with the second power grid power supply and the first control module; the second control module is electrically connected with the power supply module and the power router, and is configured to send a power supply switching signal to the first control module when the current working power supply is detected to be in fault; the first control module is configured to control a conversion module corresponding to a non-fault power grid to work in response to receiving the power switching signal, wherein the current working power grid comprises the first power grid or the second power grid.

According to another aspect of the present disclosure, there is provided a power supply method applied to the power distribution system according to the present disclosure, including: the second control module sends a power supply switching signal to the first control module when detecting that the current working power grid power supply fails; and the first control module controls the conversion module corresponding to the power supply of the non-failure power grid to work in response to receiving the power supply switching signal.

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.

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 schematically illustrates a structural schematic of a power distribution system according to an embodiment of the present disclosure;

FIG. 2 schematically illustrates a structural schematic of a power distribution system according to another embodiment of the present disclosure;

FIG. 3 schematically illustrates a structural schematic of a power distribution system according to another embodiment of the present disclosure;

fig. 4 schematically shows a structural schematic diagram of a first transformation module according to an embodiment of the present disclosure;

fig. 5 schematically shows a structural schematic diagram of a second transformation module according to an embodiment of the present disclosure;

fig. 6 schematically shows a structural schematic diagram of a third transformation module according to an embodiment of the present disclosure;

fig. 7 schematically shows a structural diagram of a fourth conversion module in the case where the new energy power supply is a direct current new energy power supply according to an embodiment of the present disclosure;

fig. 8 schematically shows a structural diagram of a fourth conversion module in a case where the new energy power supply is an ac new energy power supply according to an embodiment of the present disclosure; and

fig. 9 schematically illustrates a flow chart of a power distribution method according to an embodiment of the present disclosure.

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.

The power distribution system of the data center may be a double bus power distribution system. A dual bus power distribution system may include two independent power distribution systems. Each power distribution system may include a grid power source and a switch corresponding to the grid power source. The two power distribution systems can be switched between two power grid power supplies through the bus coupler switch. That is, a dual bus power distribution system may include a buscouple switch, a first grid power source, a first switch corresponding to the first grid power source, a second grid power source, and a second switch corresponding to the second grid power source. The switching between the first grid power supply and the second grid power supply can be realized by a first switch, a second switch and a bus coupler switch. For example, the first grid power supply fails and the second grid power supply does not fail. Currently, a first grid power supply is used to supply power to a consumer. In this case, the first switch may be closed, and the bus tie switch and the second switch may be opened, so that the second grid power source may be utilized to supply power to the electric device.

Uninterrupted switching between the power grid power supplies cannot be realized through the first switch, the second switch and the bus coupler switch.

Therefore, the embodiment of the disclosure provides a power distribution scheme. The power distribution system includes a power module, a power router, and a second control module. The power module includes a first grid power supply and a second grid power supply. The power router includes a first control module, a first transformation module, and a second transformation module. The first conversion module is electrically connected with the first power grid power supply and the first control module. The second conversion module is electrically connected with the second power grid power supply and the first control module. The second control module is electrically connected with the power module and the power router. The second control module is configured to send a power switching signal to the first control module in case of detecting that the current operating grid power fails. The first control module is configured to control the conversion module corresponding to the non-faulty grid power supply to operate in response to receiving the power supply switching signal. The current operating grid power supply comprises either the first grid power supply or the second grid power supply.

According to the embodiment of the disclosure, the second control module is configured to send a power supply switching signal to the first control module when detecting that the current working power supply fails, and the first control module is configured to control the conversion module corresponding to the non-failure power supply to work in response to receiving the power supply switching signal. The cooperation of the second control module and the electric power router does not need a physical switch, and the uninterrupted switching between the first power grid power supply and the second power grid power supply is realized.

Fig. 1 schematically illustrates a structural schematic of a power distribution system according to an embodiment of the present disclosure.

As shown in fig. 1, the power distribution system 100 may include a power module 110, a power router 120, and a second control module 130. The power module 110 may include a first grid power supply 111 and a second grid power supply 112. The power router 120 may include a first control module 121, a first transformation module 122, and a second transformation module 123.

The second control module 130 may be electrically connected with the power supply module 110 and the power router 120. The first transformation module 121 may be electrically connected to the first grid power supply 111 and the first control module 121. The second transformation module 122 may be electrically connected to the second grid power supply 112 and the first control module 121.

The second control module 130 may be configured to send a power switching signal to the first control module 121 in case of detection of a failure of the current operating grid power supply.

The first control module 121 may be configured to control the operation of the transformation module corresponding to the non-faulty grid power supply in response to receiving the power switching signal. Current operating grid power supplies include one of: a first grid power supply and a second grid power supply.

According to embodiments of the present disclosure, both the first grid power source 111 and the second grid module 112 may be used to supply power to the electrical device. Depending on the type of service, the powered device may include at least one of: internet devices and other devices. The internet appliance may include at least one of: the system comprises a server, a database, a network switch, a network monitoring terminal and the like of the data center. Other devices may include refrigeration devices. The server may be various types of servers that provide various functions. For example, the server may be a cloud server (i.e., a cloud computing server or cloud host). The cloud Server is a host product in a cloud computing service system, and overcomes the defects of large management difficulty and weak service expansibility in the traditional physical host and VPS (Virtual Private Server) service. Further, the server may also be a server of a distributed system or a server incorporating a blockchain. Depending on the signal format, the consumers may include dc consumers and ac consumers.

According to an embodiment of the present disclosure, the first transformation module 122 may be electrically connected to the first grid power source through the first power distribution module. The first power distribution module may include a first transformer and a first power distribution cabinet. The first switch board may be a first low voltage switch board. The second transformation module 123 may be electrically connected to the second grid power source through a second power distribution module. The second power distribution module may include a second transformer and a second power distribution cabinet. The second switch cabinet may be a second low voltage switch cabinet.

According to an embodiment of the present disclosure, the first transformation module 122 may be electrically connected with the electric device through the third power distribution module. The third power distribution module may include at least one of: the power distribution system comprises a first Alternating Current (AC) distribution box, a first Direct Current (DC) distribution box, a first AC column head cabinet and a first DC column head cabinet. The second transformation module 123 may be electrically connected to the electric devices through the fourth power distribution module. The fourth power distribution module may include at least one of: the second alternating current distribution box, the second direct current distribution box, the second alternating current column head cabinet and the second direct current column head cabinet.

According to an embodiment of the present disclosure, the first conversion module 122 may perform conversion between an ac voltage signal and a dc voltage signal, and conversion between the dc voltage signal and the ac voltage signal, on the ac voltage signal provided by the first grid power source 111, resulting in an ac voltage signal that can be used for providing to the electrical equipment. Alternatively, the first conversion module 122 may perform conversion between the ac voltage signal and the dc voltage signal, and conversion between the dc voltage signal and the dc voltage signal, on the ac voltage signal provided by the first grid power supply 111, resulting in a dc voltage signal that can be used for providing to the electrical consumer.

According to an embodiment of the present disclosure, the second conversion module 123 may perform conversion between the ac voltage signal and the dc voltage signal, and conversion between the dc voltage signal and the ac voltage signal, on the ac voltage signal provided by the second grid power supply 112, resulting in an ac voltage signal that can be used for providing to the electrical consumer. Alternatively, the second conversion module 123 may perform conversion between the ac voltage signal and the dc voltage signal, and conversion between the dc voltage signal and the dc voltage signal, on the ac voltage signal provided by the second grid power supply 112, resulting in a dc voltage signal that can be used for providing to the electrical consumer.

According to an embodiment of the present disclosure, the first control module 121 may include a first processor and a first memory. In addition, the first control module 121 may further include at least one of: the device comprises a first input unit, a first output unit and a first bus. The second control module 130 may include a second processor and a second memory. In addition, the second control module 130 may further include at least one of: a second input unit, a second output unit, and a second bus.

According to an embodiment of the present disclosure, one of the first grid power supply 111 and the second grid power supply 112 may be used to supply power to the electrical device under normal conditions. That is, in the case where the first grid power supply 111 supplies power to the electric devices, the second grid power supply 112 may serve as a backup grid power supply. In the case where the second grid power supply 112 supplies power to the electric devices, the first grid power supply 111 may serve as a backup grid power supply. The grid power source currently in operation may be referred to as the currently operating grid power source, whereby either the first grid power source 111 or the second grid power source 112 may be the currently operating grid power source. If the current working power grid fails, power can be continuously supplied to the electric equipment in a mode of enabling the non-failed power grid. The non-failed grid power supply may be a backup grid power supply.

According to an embodiment of the present disclosure, the second control module 130 may detect whether the current operating grid power source is malfunctioning. The second control module 130 may generate a power switching signal in case it detects that the current operating grid power fails. The power switching signal may refer to a signal for switching between a currently operating grid power supply and an un-faulted grid power supply so that the un-faulted grid power supply can continue to supply power to the powered device. The second control module 130 may send a power switching signal to the first control module 121 in the power router 120.

According to the embodiment of the present disclosure, the first control module 121 may control the transformation module corresponding to the non-faulty power grid to operate when receiving the power switching signal, that is, start the transformation module corresponding to the non-faulty power grid, and enable the non-faulty power grid to continue to supply power to the electric device by using the transformation module corresponding to the non-faulty power grid in the operating state.

For example, if the current operating grid power supply is the first grid power supply 111, the second control module 130 may send a power supply switch signal to the first control module 121 in case a failure of the first grid power supply 111 is detected. When receiving the power switching signal, the first control module 121 controls the second conversion module 123 to operate, so that the second grid power supply 112 becomes a new current operating grid power supply, and thus, the second grid power supply 112 is used to continue to supply power to the electric device.

For example, if the current operating grid power is the second grid power 112, the second control module 130 may send a power switch signal to the first control module 121 in case a failure of the second grid power 112 is detected. When receiving the power switching signal, the first control module 121 controls the first conversion module 122 to operate, so that the first grid power supply 111 becomes a new current operating grid power supply, and thus, the first grid power supply 111 is used to continue to supply power to the electric device.

According to an embodiment of the present disclosure, in case that the second control module is configured to detect that the current operating power supply fails, the second control module is configured to send a power supply switching signal to the first control module, and the first control module is configured to control the conversion module corresponding to the non-failed power supply to operate in response to receiving the power supply switching signal. The cooperation of the second control module and the electric power router does not need a physical switch, and the uninterrupted switching between the first power grid power supply and the second power grid power supply is realized.

The power distribution system according to the embodiment of the present disclosure is further described with reference to fig. 2 to 8.

Fig. 2 schematically illustrates a structural schematic of a power distribution system according to another embodiment of the present disclosure.

As shown in fig. 2, the power distribution system 200 may include a power module 210, a power router 220, and a second control module 230. The power module 210 may include a first grid power source 211, a second grid power source 212, and a battery pack 213. The power router 220 may include a first control module 221, a first transformation module 222, a second transformation module 223, and a third transformation module 224.

For the description of the first grid power supply 211, the second grid power supply 212, the first control module 221, the first transformation module 222, and the second transformation module 223, reference may be made to the above description of the first grid power supply 111, the second grid power supply 112, the first control module 121, the first transformation module 122, and the second transformation module 123, which is not described herein again.

The third conversion module 224 may be electrically connected with the battery pack 213 and the first control module 221.

The second control module 230 may be further configured to transmit a first target mode signal for the battery pack 213 to the first control module 221 according to the first state information. The first control module 221 may be further configured to control an operation mode of the third transformation module 224 in response to receiving the first target mode signal, such that the battery pack 213 may supply power to at least one of: powered device supply 240, first grid power source 211, and second grid power source 212. The first status information may include at least one of: first state information of the power module 210 and first state information of the powered device.

According to an embodiment of the present disclosure, the first state information of the power module 210 may include at least one of: first current available resource information and first current operating state information of the power module 210. The first currently available resource information may include a first current remaining power. The first current operating state information may include at least one of: the system comprises a first current working voltage, a first current working time, a first current working temperature and first current fault information. The power module 210 may include at least one of: a first grid power supply 211, a second grid power supply 212 and a battery pack 213.

According to an embodiment of the present disclosure, the first state information of the electric device may include first current resource demand information and second current operating state information of the electric device. The first current resource demand information may include a first current demand power amount. The second current operating state information may include at least one of: the second current working voltage, the second current working time, the second current working temperature and the second current fault information.

According to an embodiment of the present disclosure, the second control module 230 may determine the first state information. A first target mode signal is generated based on the first state information. The first target mode signal may refer to a signal for characterizing an operation mode of the third transformation module 224. The second control module 230 may send a first target mode signal to the first control module 221. The first control module 221 may determine the operation mode of the third transform module 224 according to the first target mode signal. The operation mode of the third transformation module 224 may include at least one of: an operating mode for causing battery pack 213 to power the consumer, an operating mode for causing battery pack 213 to power first grid power source 211, and an operating mode for causing battery pack 213 to power second grid power source 212. The third conversion module 224 is in the corresponding operation mode, so that the battery pack 213 can provide at least one of the following operation modes: power to the powered device, power to the first grid power source 211, and power to the second grid power source 212.

For example, the second control module 230 determines that both the first grid power supply 211 and the second grid power supply 212 are faulty based on the first status information. In this case, the second control module 230 may generate the first target mode signal that the third transformation module 224 can enable the battery pack 213 to supply power to the electric device according to the first state information. The second control module 230 may send a first target mode signal to the first controller 221, and control the third transformation module 224 to be in an operation mode capable of enabling the battery pack 213 to supply power to the electric device, so that the battery pack 213 may supply power to the electric device.

For example, the second control module 230 determines that the first grid power supply 211 and the second grid power supply 212 are both in a normal state, and determines that the current remaining capacities of the battery pack 213 and the second grid power supply 212 are both greater than a predetermined capacity threshold and determines that the current remaining capacity of the first grid power supply 211 is less than the predetermined capacity threshold, according to the first state information. In this case, the second control module 230 may generate the first target mode signal that the third transformation module 224 is able to cause the battery pack 213 to supply power to the first grid power source 211 according to the first state information. The second control module 230 may send a first target mode signal to the first controller 221, controlling the third transformation module 224 to be in an operation mode that enables the battery pack 213 to supply power to the first grid power source 211, thereby enabling the battery pack 213 to supply power to the first grid power source 211.

According to the embodiment of the disclosure, the working mode of the battery pack can be flexibly adjusted according to the state information of the power supply module and the electric equipment, for example, the battery pack can supply power to a first power grid power supply or supply power to a second power grid power supply.

Fig. 3 schematically illustrates a structural schematic of a power distribution system according to another embodiment of the present disclosure.

As shown in fig. 3, the power distribution system 300 may include a power module 310, a power router 320, and a second control module 330. The power module 310 may include a first grid power source 311, a second grid power source 312, a battery pack 313, and a new energy source 314. The power router 320 may include a first control module 321, a first transformation module 322, a second transformation module 323, a third transformation module 324, and a fourth transformation module 325.

For the description of the first grid power source 311, the second grid power source 312, the battery pack 313, the first control module 321, the first conversion module 322, the second conversion module 323, and the third conversion module 324, reference may be made to the above description of the first grid power source 111, the second grid power source 112, the battery pack 213, the first control module 121, the first conversion module 122, the second conversion module 123, and the third conversion module 224, which is not described herein again.

The fourth conversion module 325 may be electrically connected with the new energy power source 314 and the first control module 321.

The second control module 330 may be further configured to transmit a second target mode signal for the new energy power source 314 to the first control module 321 according to the second status information. The first control module 321 may be further configured to control the operation mode of the fourth transformation module 325 in response to receiving the second target mode signal, so that the new energy power source 314 supplies power to at least one of: the power utilization equipment, the first power grid power supply, the second power grid power supply and the battery pack. The second status information may include at least one of: second state information of the power module 310 and second state information of the powered device.

According to an embodiment of the present disclosure, the second state information of the power module 310 may include at least one of: second currently available resource information and third current operating state information of the power module 310. The second currently available resource information may include a second current remaining power. The third current operating state information may include at least one of: a third current operating voltage, a third current operating time, a third current operating temperature, and third current fault information. The power module 310 may include at least one of: a first grid power supply 311, a second grid power supply 312, a battery pack 313 and a new energy power supply 314.

According to an embodiment of the present disclosure, the second state information of the electric device may include second current resource demand information and fourth current operating state information of the electric device. The second current resource demand information may include a second current demand power amount. The fourth current operating state information may include at least one of: a fourth current operating voltage, a fourth current operating time, a fourth current operating temperature, and fourth current fault information.

According to an embodiment of the present disclosure, the second control module 330 may determine the second state information. And generating a second target mode signal according to the second state information. The second target mode signal may refer to a signal for characterizing an operation mode of the fourth transformation module 325. The second control module 330 may transmit a second target mode signal to the first control module 321. The first control module 321 may determine the operation mode of the fourth transform module 325 according to the second target mode signal. The operation mode of the fourth transformation module 325 may include at least one of: an operation mode for causing the new-energy power source 314 to supply power to the electric devices, an operation mode for causing the new-energy power source 314 to supply power to the first grid power source 311, an operation mode for causing the new-energy power source 314 to supply power to the second grid power source 312, and an operation mode for causing the new-energy power source 314 to supply power to the battery pack 313. The fourth conversion module 325 is in a corresponding operation mode, so that the new energy power source 314 can provide at least one of the following operation modes: power to the consumer, power to the first grid power source 311, power to the second grid power source 312, and power to the battery pack 313.

For example, the second control module 330 determines that the first grid power supply 311, the second grid power supply 312, and the battery pack 313 all have failed based on the second status information. In this case, the second control module 330 may generate the second target mode signal that the fourth transformation module 325 can cause the new energy power source 314 to supply power to the electric device according to the second state information. The second control module 330 may send a second target mode signal to the first controller 321, and control the fourth transforming module 325 to be in an operating mode capable of enabling the new energy source 314 to supply power to the electric device, so that the new energy source 314 can supply power to the electric device.

For example, the second control module 330 determines that the first grid power supply 311, the second grid power supply 312, the battery pack 313 and the new energy power supply 314 are all in a normal state according to the second state information, and determines that the current remaining capacities of the new energy power supply 314 and the second grid power supply 312 are all greater than a predetermined capacity threshold and that the current remaining capacity of the first grid power supply 311 is less than the predetermined capacity threshold. In this case, the second control module 330 may generate a second target mode signal that the fourth transformation module 325 can cause the new energy power source 314 to supply power to the first grid power source 311 according to the second state information. The second control module 330 may send a second target mode signal to the first controller 321, and control the fourth transforming module 325 to be in an operating mode capable of enabling the new-energy power source 314 to supply power to the first grid power source 311, so that the new-energy power source 314 can supply power to the first grid power source 311.

For example, the second control module 330 determines that the first grid power supply 311, the second grid power supply 312, the battery pack 313 and the new energy power supply 314 are all in a normal state according to the second state information, and determines that the current remaining capacity of the new energy power supply 314, the first grid power supply 311 and the second grid power supply 312 is greater than a predetermined capacity threshold and determines that the current remaining capacity of the battery pack 313 is less than the predetermined capacity threshold. In this case, the second control module 330 may generate a second target mode signal that the fourth transformation module 325 can cause the new energy power source 314 to supply power to the battery pack 313 according to the second state information. The second control module 330 may send a second target mode signal to the first controller 321 to control the fourth transforming module 325 to be in an operation mode capable of enabling the new energy power supply 314 to supply power to the battery pack 313, so that the new energy power supply 314 may supply power to the battery pack 313.

According to an embodiment of the present disclosure, the power distribution system 300 may include a power module 310, a power router 320, and a second control module 330. The power module 310 may include a first grid power source 311, a second grid power source 312, and a new energy source 314. The power router 320 may include a first control module 321, a first transformation module 322, a second transformation module 323, and a fourth transformation module 325. The second control module 330 may be further configured to transmit a second target mode signal for the new energy power source 314 to the first control module 321 according to the second status information. The first control module 321 may be further configured to control the operation mode of the fourth transformation module 325 in response to receiving the second target mode signal, so that the new energy power source 314 supplies power to at least one of: the power utilization device comprises a power utilization device, a first power grid power supply and a second power grid power supply.

According to the embodiment of the disclosure, the working mode of the new energy power supply can be flexibly adjusted according to the state information of the power supply module and the electric equipment. For example, the new energy source may be implemented to supply power to a first grid power source, to a second grid power source, to a powered device, or to a battery pack.

According to an embodiment of the present disclosure, the second control module 130 (i.e., the second control module 230 and the second control module 330) may be further configured to transmit a third target mode signal to the first control module 121 (i.e., the first control module 221 and the first control module 231) according to the third state information. The first control module 121 may be further configured to control the operation mode of the transformation module corresponding to the currently operating grid power supply to supply power to the battery pack 213 (i.e. the battery pack 313) in response to receiving the third target mode signal. The third status information may include at least one of: third status information of the power module 110 (i.e., the power module 210 or the power module 310) and third status information of the powered device.

According to an embodiment of the present disclosure, the third status information of the power module 110 may include at least one of: third currently available resource information and fifth current operating state information of the power module 110. The third currently available resource information may include a third current remaining power. The fifth current operation state information may include at least one of: a fifth current operating voltage, a fifth current operating time, a fifth current operating temperature, and fifth current fault information. The power module 310 may include at least one of: a first grid power supply 311, a second grid power supply 312, a battery pack 313 and a new energy power supply 314.

According to an embodiment of the present disclosure, the third state information of the electric device may include third current resource demand information and sixth current operating state information of the electric device. The third current resource demand information may include a third current demand power amount. The sixth current operation state information may include at least one of: a sixth current operating voltage, a sixth current operating time, a sixth current operating temperature, and sixth current fault information.

According to an embodiment of the present disclosure, the second control module 130 may determine the third state information. And generating a third target mode signal according to the third state information. The second target mode signal may refer to a signal for characterizing an operation mode of a transformation module (i.e., the first transformation module 122 or the second transformation module 123) corresponding to the current operating grid power supply. The second control module 130 may transmit a third target mode signal to the first control module 121. The first control module 121 may determine an operation mode of the conversion module corresponding to the current operating grid power supply according to the third target mode signal. The operation mode of the conversion module corresponding to the current operating grid power may include an operation mode for causing the current operating grid power to supply power to the battery pack 213. The current operating grid power supply can supply power to the battery pack 213 by the conversion module corresponding to the current operating grid power supply being in the corresponding operating mode.

Fig. 4 schematically shows a structural schematic diagram of a first transformation module according to an embodiment of the present disclosure.

As shown in fig. 4, the first conversion module 422 may include a first input converter 422_1, a dc bus 422_2, and a first output conversion unit 422_ 3.

The first input converter 422_1 may be electrically connected to the first grid power supply 411. The dc bus 422_2 may be electrically connected to the first input converter 422_1 and the first output conversion unit 422_3, respectively.

The first input converter 422_1 may be configured to convert a first alternating voltage signal provided by the first grid power supply 411 into a first direct voltage signal. The first output conversion unit 422_3 may be configured to convert the first direct current voltage signal via the direct current bus 422_2 into at least one first target signal. The at least one first target signal may comprise at least one of: at least one second alternating voltage signal and at least one second direct voltage signal.

According to an embodiment of the present disclosure, the first input converter 422_1 may be electrically connected with the first grid power source 411 through the first power distribution module. The first output conversion unit 422_3 may be electrically connected to the electric devices through the third power distribution module. The first output conversion unit 422_3 may be electrically connected to the battery pack 413 (i.e., the battery pack 213 or the battery pack 313).

According to an embodiment of the present disclosure, the first input converter 422_1 may include a first AC/DC converter. The first output conversion unit 422_3 may include at least one of: at least one first DC/AC converter and at least one first DC/DC converter.

According to an embodiment of the present disclosure, the first input converter 422_1 may convert the first alternating voltage signal provided by the first grid power supply 411 into a first direct voltage signal. The first DC/AC converter may convert the first DC voltage signal via the DC bus 422_2 to a second AC voltage signal. The first DC/DC converter may convert the first DC voltage signal via the DC bus 422_2 to a second DC voltage signal.

Fig. 5 schematically shows a structural schematic diagram of a second transformation module according to an embodiment of the present disclosure.

As shown in fig. 5, the second conversion module 523 may include a second input converter 523_1, a dc bus 523_2, and a second output conversion unit 523_ 3.

The second input converter 523_1 may be electrically connected to the second grid power source 512. The dc bus 523_2 may be electrically connected to the second input converter 523_1 and the second output conversion unit 523_3, respectively.

The second input converter 523_1 may be configured to convert the third alternating voltage signal provided by the second grid power source 512 into a third direct voltage signal. The second output conversion unit 523_3 may be configured to convert the third direct voltage signal via the direct current bus 523_2 into at least one second target signal. The at least one second target signal may comprise at least one of: at least one fourth alternating voltage signal and at least one fourth direct voltage signal.

According to an embodiment of the present disclosure, the second input converter 523_1 may be electrically connected with the second grid power source 512 through the second power distribution module. The second output conversion unit 523_3 may be electrically connected to the electric devices through the fourth power distribution module. The second output conversion unit 523_3 may be electrically connected to the battery pack 513 (i.e., the battery pack 213, the battery pack 313, or the battery pack 413).

According to an embodiment of the present disclosure, the second input converter 523_1 may include a second AC/DC converter. The second output conversion unit 523_3 may include at least one of: at least one second DC/AC converter and at least one second DC/DC converter.

According to an embodiment of the present disclosure, the second input converter 523_1 may convert the third alternating voltage signal provided by the second grid power source 512 into a third direct voltage signal. The second DC/AC converter may convert the third direct voltage signal via the direct current bus 523_2 into a fourth alternating voltage signal. The second DC/DC converter may convert the third direct current voltage signal via the direct current bus 523_2 into a fourth direct current voltage signal.

According to an embodiment of the present disclosure, the dc bus 523_2 may be the same as the dc bus 422_ 2. The first AC/DC converter may be the same as or different from the second AC/DC converter. The first DC/AC converter may be the same as or different from the second DC/AC converter. The first DC/DC converter may be the same as or different from the second DC/DC converter.

Fig. 6 schematically shows a structural diagram of a third transformation module according to an embodiment of the present disclosure.

As shown in fig. 6, the third conversion module 624 may include a third input converter 624_1, a dc bus 624_2, and a third output conversion unit 624_ 3.

The third input converter 624_1 may be electrically connected to the battery pack 613. The dc bus 624_2 may be electrically connected to the third input converter 624_1 and the third output converter 624_3, respectively. The third output converter unit 624_3 and the third input converter 624_1 may be located on the same side of the dc bus 624_2, or may be located on the opposite side of the dc bus 624_ 2.

The third input converter 624_1 may be configured to convert the fifth dc voltage signal provided by the battery pack 613 into a sixth dc voltage signal. The third output conversion unit 624_3 may be configured to convert the sixth direct voltage signal via the direct current bus 624_2 into at least one third target signal. The at least one third target signal may comprise at least one of: at least one fifth alternating voltage signal and at least one seventh direct voltage signal.

According to an embodiment of the present disclosure, the third input converter 624_1 may be electrically connected with the battery pack 613. The third output conversion unit 624_3 may be electrically connected to the electric devices through the third power distribution module.

According to an embodiment of the present disclosure, the third input converter 624_1 may include a third DC/DC converter. The third output conversion unit 624_3 may include at least one of: at least one third DC/AC converter and at least one fourth DC/DC converter.

According to an embodiment of the present disclosure, the third input converter 624_1 may convert the fifth direct current voltage signal provided by the battery pack 613 into a sixth direct current voltage signal. The third DC/AC converter may convert the sixth direct current voltage signal via the direct current bus 624_2 to a fifth alternating current voltage signal. The fourth DC/DC converter may convert the sixth direct current voltage signal via the direct current bus 624_2 to a seventh direct current voltage signal.

According to an embodiment of the present disclosure, power supply to the first grid power supply or the second grid power supply may be achieved by the battery pack 613 → the third DC/DC converter → the third DC/AC converter.

According to an embodiment of the present disclosure, the dc bus 624_2, the dc bus 523_2, and the dc bus 422_2 may be the same. The first AC/DC converter and the second AC/DC converter may be the same or different. The first, second and third DC/AC converters may be the same or different. The first, second, third and fourth DC/DC converters may be the same or different.

According to an embodiment of the present disclosure, the new energy power source may include at least one of: a direct current new energy power supply and an alternating current new energy power supply.

According to an embodiment of the present disclosure, the dc new energy power source may include a photovoltaic power source. The alternating current new energy power supply can comprise a wind power supply.

According to the embodiment of the disclosure, because the input signal form supported by the electric power router comprises the direct current voltage signal and the alternating current voltage signal, the electric power router can be accessed for both the direct current new energy power supply and the alternating current new energy power supply, and then the power distribution system is accessed, so that additional equipment such as a power distribution cabinet, a transformer and a reverse power device does not need to be added, and the convenient access of the new energy power supply is realized.

Fig. 7 schematically shows a structural diagram of a fourth conversion module in the case that the new energy power supply is a direct current new energy power supply according to an embodiment of the present disclosure.

As shown in fig. 7, the fourth conversion module 725 may include a fourth input converter 725_1, a dc bus 725_2, and a fourth output conversion unit 725_ 3.

The fourth input converter 725_1 may be electrically connected to the dc new energy source 714. The dc bus 725_2 may be electrically connected to the fourth input converter 725_1 and the fourth output conversion unit 725_3, respectively. The fourth output conversion unit 725_3 and the fourth input converter 725_1 may be located on the same side of the dc bus 725_2, or may be located on the opposite side of the dc bus 725_ 2.

The fourth input converter 725_1 may be configured to convert the eighth dc voltage signal provided by the dc new energy power source 714 into a ninth dc voltage signal. The fourth output conversion unit 725_3 may be configured to convert the ninth direct voltage signal via the direct current bus 725_2 into at least one fourth target signal. The at least one fourth target signal may comprise at least one of: at least one sixth alternating voltage signal and at least one tenth direct voltage signal.

According to an embodiment of the present disclosure, the fourth input converter 725_1 may be electrically connected with the dc new energy power source 714. The fourth output conversion unit 725_3 may be electrically connected to the electric devices through the third power distribution module.

According to an embodiment of the present disclosure, the fourth input converter 725_1 may include a fifth DC/DC converter. The fourth output conversion unit 725_3 may include at least one of: at least one fourth DC/AC converter and at least one sixth DC/DC converter.

According to an embodiment of the present disclosure, the fourth input converter 725_1 may convert the eighth dc voltage signal provided by the dc new energy source 714 into a ninth dc voltage signal. The fourth DC/AC converter may convert the ninth direct voltage signal via the direct current bus 725_2 to a sixth alternating voltage signal. The sixth DC/DC converter may convert the ninth direct current voltage signal via the direct current bus 725_2 to a tenth direct current voltage signal.

According to the embodiment of the disclosure, power supply to the first grid power supply or the second grid power supply may be realized by the direct current new energy power source 714 → the fifth DC/DC converter → the fourth DC/AC converter. The power supply to the battery pack is realized by the direct-current new energy power source 714 → the fifth DC/DC converter → the sixth DC/DC converter.

According to an embodiment of the present disclosure, the dc bus 725_2, the dc bus 624_2, the dc bus 523_2, and the dc bus 422_2 may be identical. The first AC/DC converter and the second AC/DC converter may be the same or different. The first, second, third and fourth DC/AC converters may be the same or different. The first DC/DC converter, the second DC/DC converter, the third DC/DC converter, the fourth DC/DC converter, the fifth DC/DC converter, and the sixth DC/DC converter may be the same or different.

Fig. 8 schematically shows a structural diagram of a fourth conversion module in the case that the new energy power supply is an ac new energy power supply according to an embodiment of the present disclosure.

As shown in fig. 8, the fourth conversion module 800 may include a fifth input converter 825_1, a dc bus 825_2, and a fifth output conversion unit 825_ 3.

The fifth input converter 825_1 can be electrically connected to the ac new energy source 814. The dc bus 825_2 may be electrically connected to the fifth input converter 825_1 and the fifth output conversion unit 825_3, respectively.

The fifth input converter 825_1 may be configured to convert the seventh ac voltage signal provided by the ac new-energy power source 814 into an eleventh dc voltage signal. The fifth output conversion unit 825_3 may be configured to convert the eleventh direct voltage signal via the direct current bus 825_2 into at least one fifth target signal. The at least one fifth target signal may comprise at least one of: at least one eighth alternating voltage signal and at least one twelfth direct voltage signal.

According to an embodiment of the present disclosure, the fifth input converter 825_1 may be electrically connected with the ac new energy power source 814. The fifth output conversion unit 825_3 may be electrically connected to the electric devices through the third power distribution module.

According to an embodiment of the present disclosure, the fifth input converter 825_1 may include a third AC/DC converter. The fifth output transform unit 825_3 may include at least one of: at least one fifth DC/AC converter and at least one seventh DC/DC converter.

According to an embodiment of the present disclosure, the fifth input converter 825_1 may convert the seventh ac voltage signal provided by the ac new energy power source 814 into an eleventh dc voltage signal. The fifth DC/AC converter may convert the eleventh direct voltage signal via the direct current bus 825_2 to an eighth alternating voltage signal. The seventh DC/DC converter may convert the eleventh direct current voltage signal via the direct current bus 825_2 to a twelfth direct current voltage signal.

According to the embodiment of the disclosure, power supply to the first grid power supply or the second grid power supply may be realized by the alternating current new energy power supply 814 → the third AC/DC converter → the fifth DC/AC converter. The power supply to the battery pack is realized by the alternating current new energy power source 814 → the third AC/DC converter → the seventh DC/DC converter.

According to an embodiment of the present disclosure, the dc bus 825_2, the dc bus 725_2, the dc bus 624_2, the dc bus 523_2, and the dc bus 422_2 may be the same. A first AC/DC converter, a second AC/DC converter, and a third AC/DC converter. The first, second, third, fourth and fifth DC/AC converters may be the same or different. The first DC/DC converter, the second DC/DC converter, the third DC/DC converter, the fourth DC/DC converter, the fifth DC/DC converter, the sixth DC/DC converter, and the seventh DC/AC converter may be the same or different.

According to embodiments of the present disclosure, the second control module 130 (i.e., the second control module 230 or the second control module 330) may be configured to generate an alarm signal in the event of a detected fault in the power distribution system.

According to an embodiment of the present disclosure, the second control module 130 may control the power distribution system to automatically operate and to diagnose faults with respect to the power distribution system. The second control module 130 may generate an alarm signal for alerting the power distribution system of the fault in the event that the power distribution system is detected to be faulty. The form of the alarm signal may be configured according to the actual service requirement, and is not limited herein. For example, the form of the alert signal may include at least one of: a voice signal, a vibration signal, and an image signal.

According to embodiments of the present disclosure, the power distribution system may further include a communication port. Original remote monitoring and adjustment of full parameters can be realized through setting, and the system can be integrated into other third-party equipment for communication and control.

As shown in fig. 9, the method 900 includes operations S910 to S920.

In operation S910, the second control module sends a power switching signal to the first control module when detecting that the current operating grid power fails.

In operation S920, the first control module controls the conversion module corresponding to the non-failed grid power to operate in response to receiving the power switching signal.

According to the embodiment of the disclosure, the power distribution method according to the embodiment of the disclosure can be applied to the power distribution system according to the embodiment of the disclosure.

The above are merely exemplary embodiments, but are not limited thereto and may also include other power distribution methods known in the art as long as uninterrupted switching between the first grid power source and the second grid power source can be achieved.

The above detailed description should not be construed as limiting the scope of the disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A power distribution system, comprising:

a power module comprising a first grid power supply and a second grid power supply;

the power router comprises a first control module, a first conversion module and a second conversion module, wherein the first conversion module is electrically connected with the first power grid power supply and the first control module, and the second conversion module is electrically connected with the second power grid power supply and the first control module; and

a second control module electrically connected with the power supply module and the power router, the second control module being configured to send a power supply switching signal to the first control module in case of detecting that a current operating grid power supply fails;

wherein the first control module is configured to control operation of a conversion module corresponding to an un-faulted grid power supply in response to receiving the power switching signal, wherein the current operating grid power supply comprises the first grid power supply or the second grid power supply.

2. The system of claim 1, wherein the power module further comprises a battery pack;

the power router further comprises a third conversion module electrically connected with the battery pack and the first control module;

wherein the second control module is further configured to:

transmitting a first target mode signal for the battery pack to the first control module according to the first state information;

the first control module is further configured to:

in response to receiving the first target mode signal, controlling an operating mode of the third converting module to cause the battery pack to supply power to at least one of: a powered device, the first grid power source, and the second grid power source, wherein the first status information includes at least one of: the first state information of the power module and the first state information of the electric equipment.

3. The system of claim 2, wherein the power module further comprises a new energy source;

the electric power router also comprises a fourth conversion module which is electrically connected with the new energy power supply and the first control module;

wherein the second control module is further configured to:

according to second state information, sending a second target mode signal aiming at the new energy power supply to the first control module;

the first control module is further configured to:

in response to receiving the second target mode signal, controlling an operating mode of the fourth conversion module to cause the new energy power supply to supply power to at least one of: the powered device, the first grid power source, the second grid power source, and the battery pack, wherein the second status information includes at least one of: second state information of the power module and second state information of the powered device.

4. The system of claim 2 or 3,

the second control module is further configured to:

sending a third target mode signal to the first control module according to the third state information;

the first control module is further configured to:

in response to receiving the third target mode signal, controlling an operating mode of a transformation module corresponding to the current operating grid power supply to cause the current operating grid power supply to supply power to the battery pack, wherein the third status information includes at least one of: third state information of the power module and third state information of the powered device.

5. The system of any one of claims 1-4, wherein the first transformation module comprises:

a first input converter electrically connected to the first grid power supply and configured to convert a first alternating voltage signal provided by the first grid power supply into a first direct voltage signal;

a DC bus electrically connected to the first input converter; and

a first output conversion unit electrically connected with the DC bus and configured to convert a first DC voltage signal via the DC bus into at least one first target signal, wherein the at least one first target signal comprises at least one of: at least one second alternating voltage signal and at least one second direct voltage signal.

6. The system of any one of claims 1-5, wherein the second transformation module comprises:

a second input converter, electrically connected to the second grid power supply, configured to convert a third alternating voltage signal provided by the second grid power supply into a third direct voltage signal;

the direct current bus is electrically connected with the second input converter; and

a second output conversion unit electrically connected to the DC bus and configured to convert a third DC voltage signal via the DC bus into at least one second target signal, wherein the at least one second target signal includes at least one of: at least one fourth alternating voltage signal and at least one fourth direct voltage signal.

7. The system of any one of claims 2-6, wherein the third transformation module comprises:

a third input converter electrically connected to the battery pack and configured to convert a fifth direct current voltage signal provided by the battery pack into a sixth direct current voltage signal;

the direct current bus is electrically connected with the third input converter; and

a third output conversion unit electrically connected to the DC bus and configured to convert a sixth DC voltage signal via the DC bus into at least one third target signal, wherein the at least one third target signal includes at least one of: at least one fifth alternating voltage signal and at least one seventh direct voltage signal.

8. The system of any one of claims 3-7, wherein the new energy source comprises at least one of: a direct current new energy power supply and an alternating current new energy power supply;

in a case where the new energy power supply is the dc new energy power supply, the fourth conversion module includes:

a fourth input converter, electrically connected to the new dc energy source, configured to convert an eighth dc voltage signal provided by the new dc energy source into a ninth dc voltage signal;

the direct current bus is electrically connected with the fourth input converter; and

a fourth output conversion unit electrically connected to the dc bus and configured to convert a ninth dc voltage signal via the dc bus into at least one fourth target signal, wherein the at least one fourth target signal comprises at least one of: at least one sixth alternating voltage signal and at least one tenth direct voltage signal;

in a case where the new energy power supply is the ac new energy power supply, the fourth conversion module includes:

a fifth input converter, electrically connected to the ac new energy power source, configured to convert a seventh ac voltage signal provided by the ac new energy power source into an eleventh dc voltage signal;

the direct-current bus is electrically connected with the fifth input converter; and

a fifth output conversion unit electrically connected to the dc bus and configured to convert an eleventh dc voltage signal via the dc bus into at least one fifth target signal, wherein the at least one fifth target signal comprises at least one of: at least one eighth alternating voltage signal and at least one twelfth direct voltage signal.

9. The system of any of claims 1-8, wherein the second control module is configured to generate an alarm signal in the event of a detected fault in the power distribution system.

10. A power supply method applied to the power distribution system according to any one of claims 1-9, comprising the following steps:

the second control module sends a power supply switching signal to the first control module when detecting that the power supply of the current working power grid fails; and

and the first control module controls the conversion module corresponding to the power supply of the power grid which is not in fault to work in response to receiving the power supply switching signal.