KR20200030820A - System for supplying power - Google Patents

Abstract

The present invention relates to a power supply system which has a circuit breaker controlling a connection with a power bus to open and close the circuit breaker in accordance with various situations occurring on the system to control power demand and supply. The power supply system comprises a plurality of power supply boards and a plurality of circuit breakers.

Description

Power supply system {SYSTEM FOR SUPPLYING POWER}

The present invention relates to a power supply system capable of supplying uninterruptible power.

The technology underlying the present invention relates to a system comprising multiple power supplies.

A system in which multiple power supplies supply power to each load may be commonly connected through a DC bus line. When connected to the common bus line as described above, there is an advantage of being able to supply and supply power to neighboring power supplies through the DC bus line. However, when the system is configured as described above, there are limitations such as stability problems of the system, difficulty in controlling power supply and supply, and lack of a countermeasure in case of an accident.

Since a plurality of power supplies having a complicated configuration are provided, system operation cannot be stably performed when compatibility between the devices is poor. In addition, when the load that each device supplies power is an important load that power supply is always required, it is required to provide a separate UPS device in preparation for an abnormal condition. When the UPS device is provided, the system configuration becomes more complicated. Due to structural / design constraints, the provision of the UPS device itself is not easy. In addition, as the configuration is complicated, the control of each device and system is inevitably more complicated, and the risk of occurrence of failures and accidents increases. As a result, stable and reliable power supply is difficult, and the operation of the load is also unstable, and there is a problem that proper operation response cannot be made according to various accidents.

The present invention aims to improve the limitations of the prior art as described above.

That is, this specification is intended to provide a power supply system capable of improving the limitations of the prior art.

Specifically, power supply is provided between a plurality of power modules provided in the system, and each of the plurality of power modules is intended to provide a power supply system capable of performing a UPS function between each other.

In addition, it is intended to provide a power supply system capable of effectively maintaining power supply to a load in various abnormal situations.

In addition, it is intended to provide a power supply system capable of stably and appropriately responding to power supply and demand according to various abnormal conditions.

The power supply system according to the present invention for solving the problems as described above is provided with a circuit breaker to control each of the converter is connected to a plurality of power modules, to open and close the circuit breaker according to various situations occurring on the system to supply power Controlling is used as a solution.

That is, the power supply system according to the present invention is provided with a circuit breaker corresponding to a plurality of power modules, and controls the circuit breaker to supply and receive power, thereby performing a UPS function between the plurality of power modules. .

The above technical features may be applied and implemented in a power supply system, and the present specification provides an embodiment of the power supply system having the above technical features.

An embodiment of a power supply system according to the present invention having the above technical features as a solution to problems, converts power supplied from one or more power sources into DC power, and converts the DC power into driving power of a load, It is disposed on one side of each of the plurality of power supply panels and the plurality of power supply panels to supply the load, and connects or disconnects the power terminals of the two power supply panels between one side of each of the plurality of power supply panels and the other side of the power supply panel adjacent to the one side. It includes a plurality of circuit breakers, the plurality of circuit breakers, when the power supply is interrupted in one or more of the plurality of power supply panel, at least one of the circuit breakers connected to one side and the other side of the power supply is interrupted is closed, Connecting one or more of the power terminals of the power panel connected to both sides of the suspended power panel and the power terminals of the suspended power panel .

In one embodiment of the power supply system, the one or more power sources include first AC power and second AC power and DC power for supplying AC power, so that the first AC power and the second AC power are stored. When the power supply is interrupted, the stored power may include battery power supplied to the plurality of power panels while the power supply is switched and restored.

In one embodiment of the power supply system, after the power supply is stopped, the stored power may be supplied to the plurality of power supply panels in an uninterrupted manner until the power supply is switched and restored. .

In one embodiment of the power supply system, the one or more power sources are used for emergency power supplying emergency power to the load when power supply to the first AC power, the second AC power, and the battery power is interrupted. It may further include a power source.

In one embodiment of the power supply system, each of the plurality of power supply panels includes one or more first power converters and one or more first power converters to convert power supplied from the one or more power sources into the DC power. It may include a second power converter for converting the DC power supplied from the to the driving power to supply to the load.

In one embodiment of the power supply system, the plurality of power supply panels may supply the DC power to the second power conversion device by any one of the one or more first power conversion devices according to the state of the one or more power supply sources. have.

In one embodiment of the power supply system, when the power supply of the converter for supplying the DC power to the second power converter is interrupted, the plurality of power supply panels may use the converter other than the converter. The DC power can be supplied to the second power converter.

In one embodiment of the power supply system, the one or more first power converters in the shopping mall convert the second power through a converter that receives power from the battery power while the converter is switched to the other converter. The DC power can be supplied to the device.

In one embodiment of the power supply system, each of the plurality of power supply panels, the power supply terminal may be connected to any two of the circuit breakers.

In one embodiment of the power supply system, the plurality of power supply panels may have the plurality of circuit breakers respectively disposed between the power supply terminals of any one of the power supply panels and the power supply terminals of two neighboring power supply panels.

In one embodiment of the power supply system, each of the plurality of power panels includes a first power terminal corresponding to one end of the power terminal and a second power terminal corresponding to the other end of the power terminal, The circuit breaker is disposed between each of the two power panels to connect or disconnect the first power terminal of one power panel and the second power terminal of the other power panel.

In one embodiment of the power supply system, the plurality of circuit breakers may be provided in a number corresponding to the plurality of power supply panels.

In one embodiment of the power supply system, the plurality of circuit breakers may be closed when the DC power is connected between the plurality of power panels, and may be opened when the DC power is intermittent between the plurality of power panels.

In one embodiment of the power supply system, the plurality of circuit breakers, when the power supply of one or more of the plurality of power supply is interrupted, the power supply is stopped between the power supply and the interrupted power supply and adjacent power supply panel The placed circuit breaker is closed, and the interrupted power supply panel and the adjacent power supply unit are connected to allow the DC power to be supplied from the adjacent power supply unit to the interrupted power supply unit.

In one embodiment of the power supply system, the interrupted power supply panel stops supplying power, until the DC power supplied from the adjacent power supply panel is supplied, the DC in a converter connected to the battery power supply. Power can be supplied.

In one embodiment of the power supply system, a control for monitoring at least one of the plurality of power supply panels and the plurality of circuit breakers, and controlling at least one of the plurality of power supply panels and the plurality of circuit breakers according to a monitoring result It may further include a device.

In addition, another embodiment of the power supply system according to the present invention using the above technical features as a problem solving means, converts power supplied from each of a plurality of loads and a plurality of power sources into DC power, and converts the DC power A plurality of power supply panels that convert the driving power to drive the plurality of loads and supply the driving power to the plurality of loads, and are commonly connected to output terminals through which the DC power flows in each of the plurality of power supply panels. A bus line through which the DC power output from each of a plurality of power supply panels is transmitted, and provided in each of the converters to which an output terminal between two neighboring power supply units among the plurality of power supply units are connected in the bus line, to connect between the plurality of power supply panels By controlling the opening and closing of the plurality of circuit breakers according to the state of each of the plurality of circuit breakers and the plurality of power supply panel, Through the bus line group and a control apparatus for controlling the supply of the DC power source between the plurality of power classes.

In one embodiment of the power supply system, the control device, when an abnormality occurs in any one or more of the plurality of power supply panel, any one of the faulty power supply panel and a converter connected to the power supply unit adjacent to the abnormality power supply panel By closing the circuit breaker of the, it is possible to control the abnormal power generation panel to receive the DC power from the adjacent power supply panel.

The power supply system according to the present invention as described above may be implemented by being applied to a power module for supplying / using DC power, a power supply system, and a method of operating a power supply system. In particular, it may be usefully applied and implemented in a DC UPS module and a power supply system having the same. However, the technology disclosed in the present specification is not limited thereto, and all power devices, power supplies, power control devices, power supply systems, power systems, power control systems, plant systems, and plant control systems to which the technical spirit of the technology can be applied , Plant control method, energy storage system, control method or operation method of the energy storage system, a motor control panel for controlling a plurality of motor loads, a motor control system, and a motor driving system may also be applied and implemented.

The power supply system according to the present invention has an effect of being able to perform a UPS function between a plurality of power modules by controlling the number of power supplies by controlling the circuit breakers of the plurality of power modules connected to each other.

Accordingly, even if various abnormal conditions occur on the system / system, there is an effect that power supply to the load can be maintained without interruption.

That is, the power supply system according to the present invention has an effect of being able to properly and stably cope with power supply for various abnormal conditions occurring on the system / system.

In addition, the power supply system according to the present invention, there is an effect that can be efficiently operated by a minimum means by controlling the number of power supply by controlling each circuit breaker of a plurality of interconnected power modules according to the occurrence situation.

In addition, the power supply system according to the present invention, there is an effect that can increase the stability, reliability and utility of large-capacity system operation.

As a result, the power supply system according to the present invention has the effect of solving the problems as described above and improving the limitations of the prior art.

1 is a block diagram showing the configuration of a power supply system according to the present invention.
Figure 2 is a block diagram showing the configuration of the power supply panel of the power supply system according to the present invention.
Figure 3 is a block diagram showing the specific structure of the power supply panel of the power supply system according to the present invention.
Figure 4 is an exemplary view showing a specific embodiment of the power supply system according to the present invention 1.
Figure 5 is an exemplary view showing a specific embodiment of the power supply system according to the present invention 2.
Figure 6 is an exemplary view showing a specific embodiment of the power supply system according to the present invention 3.
Figure 7 is an exemplary view showing a specific embodiment of the power supply system according to the present invention 4.

It should be noted that the technical terms used in this specification are only used to describe specific embodiments, and are not intended to limit the spirit of the technology disclosed herein. In addition, technical terms used in this specification should be interpreted as meanings generally understood by a person having ordinary knowledge in the field to which the technology disclosed in this specification belongs, unless defined otherwise. It should not be interpreted as a comprehensive meaning or an excessively reduced meaning. In addition, when the technical terms used in the present specification are erroneous technical terms that cannot accurately represent the spirit of the technology disclosed in the present specification, it should be understood as being replaced by technical terms that can be correctly understood by those skilled in the art. In addition, general terms used in the present specification should be interpreted as defined in the dictionary or in context before and after, and should not be interpreted as an excessively reduced meaning.

In addition, the singular expression used in this specification includes the plural expression unless the context clearly indicates otherwise. In this specification, the terms "consisting of" or "comprising" should not be construed as including all of the various components, or various steps described in the specification, among which some components or some steps It may not be included, or it should be construed to further include additional components or steps.

Hereinafter, exemplary embodiments disclosed herein will be described in detail with reference to the accompanying drawings, but the same or similar elements will be given the same reference numbers regardless of the reference numerals, and redundant descriptions thereof will be omitted.

In addition, in the description of the technology disclosed in the present specification, when it is determined that the detailed description of the related known technology may obscure the gist of the technology disclosed herein, the detailed description will be omitted. In addition, it should be noted that the accompanying drawings are only for facilitating understanding of the spirit of the technology disclosed in this specification, and should not be interpreted as limiting the spirit of the technology by the accompanying drawings.

Hereinafter, an embodiment of a power supply system according to the present invention will be described.

The power supply system may be implemented in a combination or separated form of the embodiments to be described below.

The power supply system may be a power supply system including a plurality of power modules.

The power supply system may be a system that supplies power by including a plurality of packaged power supplies.

Here, the power device may be a power panel in which a plurality of power control devices are packaged.

The power supply system 1000 (hereinafter referred to as a system) converts power supplied from one or more power sources 10 to DC power, and loads the DC power as shown in FIG. 1. It is arranged on one side of each of the plurality of power supply panel (100, 200, 300 and 400) and the plurality of power supply panel (100, 200, 300 and 400) to be converted to the driving power supply, and supplied to the load 20, It includes a plurality of circuit breakers 130 for connecting or disconnecting the power terminals of the two power panels between one side of each of the plurality of power panels (100, 200, 300 and 400) and the other side of the power panel adjacent to the one side, the plurality of When the power supply is interrupted in one or more of the plurality of power supply panels 100, 200, 300 and 400, one or more of the circuit breakers connected to one side and the other of the power supply panel where the power supply is stopped is closed. The power is connected to both sides of the suspended power panel. The connection of the power supply is interrupted and a half power stage with at least one of the power stage.

In the system 1000, the plurality of circuit breakers 130 may be opened and closed according to the power supply status of one or more of the plurality of power panels 100, 200, 300, and 400, so that the plurality of power panels 100, 200, 300 and 400) to connect or disconnect the DC power.

The plurality of circuit breakers 130, each of the plurality of power supply panel (100, 200, 300 and 400) so that the connection between the plurality of power supply panels (100, 200, 300 and 400) is formed in a ring (Ring) structure Two power panels may be connected or disconnected between one side and the other side of the power panel adjacent to the one side.

Accordingly, each of the plurality of power supply panels 100, 200, 300, and 400 is connected to two adjacent power supply panels, so that the plurality of power supply panels 100, 200, 300, and 400 can be connected in a ring structure.

Here, each of the plurality of power supply panels 100, 200, 300, and 400 may be a power supply device 100 as illustrated in FIGS. 2 and 3.

That is, the power supply panel 100 may be configured as a power supply device as shown in FIGS. 2 and 3, and the power supply system 1000 may be a power supply as shown in FIGS. 2 and 3. A plurality of power supply panels in the form of a supply device 100 may be included, and the plurality of power supply panels 100, 200, 300, and 400 may be included.

The power panel 100 may be a module including a plurality of power control devices.

The power supply panel 100 may be a power supply device in which the plurality of power control devices are packaged.

Here, each of the plurality of power supply panels 100, 200, 300, and 400 may be a power supply device 100 as illustrated in FIGS. 2 and 3.

That is, the power supply panel 100 may be configured as a power supply device as shown in FIGS. 2 and 3, and the power supply system 1000 may be a power supply as shown in FIGS. 2 and 3. A plurality of power supply panels in the form of a supply device 100 may be included, and the plurality of power supply panels 100, 200, 300, and 400 may be included.

The power panel 100 may be a module including a plurality of power control devices.

The power supply panel 100 may be a power supply device in which the plurality of power control devices are packaged.

For example, the plurality of power control devices may be packaged power panels.

The power supply panel 100 may be a package-type power supply panel provided in a building requiring high power, such as a power plant, a plant, a factory, a building, and an apartment, to supply power.

The power supply panel 100 may also be a package-type power supply panel configured in one space.

The power supply panel 100 may be packaged with the plurality of power control devices to supply power to a load.

The power supply panel 100, as shown in Figure 2, the one or more first power conversion device 110 and the DC power supply for converting the power supplied from each of the one or more power supply source 10 to the DC power supply It may include one or more second power conversion device 120 for converting the to the driving power for driving the load 20, to supply the driving power to the load (20).

As described above, the power supply panel 100 includes the one or more first power converters 110 and the second power converters 120, and receives power supplied from the one or more power supply sources 10 to the driving power source. To convert to, it is supplied to the load (20).

A specific configuration of the power panel 100 including the one or more first power converter 110 and the second power converter 120 may be as shown in FIGS. 2 and 3.

The one or more power supply sources 10 for supplying power to the power supply panel 100 are externally connected to the one or more first power conversion devices 110, and each of the one or more first power conversion devices 110 Power can be supplied.

Each of the one or more power supply sources 10 may be connected to each of the one or more first power conversion devices 110 to supply DC or AC power to each of the one or more first power conversion devices 110.

The one or more power supply sources 10 store first AC power supply 10 # 1 and second AC power supply 10 # 3 and DC power supplying AC power, as shown in FIGS. 2 and 3. It may include a battery power source (10 # 2).

Here, the first AC power supply (10 # 1) is a main system power supply (G) for supplying AC power, the second AC power supply (10 # 3) is a bypass system power supply (P) for supplying AC power, the The battery power 10 # 2 may be a battery power B that supplies DC power.

That is, the one or more power supply sources 10 may include a system power supply G, a bypass power supply P, and a battery power supply B, as shown in FIG. 4.

Accordingly, each of the plurality of power supply panels 100, 200, 300, and 400 may be supplied with power from each of the system power supply G, the bypass power supply P, and the battery power supply B. .

The first AC power supply 10 # 1 may be a system power supply G.

The first AC power supply 10 # 1 may be a system power supply G that supplies 440 [V] AC power.

The second AC power supply 10 # 3 may be a bypass power supply P.

The second AC power supply 10 # 3 may be a bypass power supply P that supplies AC power of 440 [V].

The battery power supply 10 # 2 may be an emergency battery that stores DC power and supplies the stored DC power in an emergency.

The battery power supply 10 # 2 may supply the stored DC power to the power supply panel 100 when an abnormality occurs in the first AC power and the second AC power.

When the DC power is stored in the battery power B, and when the power supply to the first AC power supply 10 # 1 and the second AC power supply 10 # 3 is stopped, the power supply is switched. During recovery, power stored in the battery power B may be supplied to the plurality of power panels 100, 200, 300 and 400.

The battery power (B), after the power supply is stopped, the stored power is supplied to the plurality of power supply panels (100, 200, 300 and 400) in an uninterrupted order until the power supply is switched and restored. You can.

The one or more power sources 10 are also emergency to the load 20 when power supply to the first AC power source G, the second AC power source P, and the battery power source B is interrupted. It may further include an emergency power supply (A) for supplying power generation.

The emergency power supply (A), when the first AC power supply (G), the second AC power supply (P) and the battery power (B) in the event of an abnormality, can supply the emergency power to the load (20) have.

The emergency power supply (A) includes the first AC power supply (G), the second AC power supply (P), and the battery power supplying power to each of the plurality of power supply panels (100, 200, 300, and 400) ( B) If power cannot be supplied due to an abnormality in all, it may be a power supply for supplying emergency power to each of the loads 20 to maintain the operation of the loads 20 for a predetermined period of time.

For example, the emergency power source A may be a power source including an emergency generator.

Each of the plurality of power supply panels 100, 200, 300 and 400, preferably, as shown in FIG. 4, three power supply sources 10, that is, the system power supply G, and the bypass power supply P And power from the battery power (B), and the system power (G), the bypass power (P), and the battery power (B) from the emergency power (A) cannot supply power. Power can only be supplied.

Here, each of the one or more power supply sources (10) for supplying power to each of the plurality of power supply panels (100, 200, 300 and 400), the plurality of power supply panels (100, 200, 300 and 400) in one system ) Power may be supplied to each of the power supply units, or power may be supplied to each of the plurality of power supply panels 100, 200, 300, and 400 from each of the switchboards separated through the separate switchboard.

Each of the plurality of power supply panels (100, 200, 300, and 400), the one or more first power converters (110, 210, 310) for converting power supplied from the one or more power sources (10) to the DC power And 410) and the second power converter 120 converting the DC power supplied from the one or more first power converters 110, 210, 310 and 410 into the driving power and supplying the DC power to the load 20. , 220, 320 and 420).

Here, the one or more first power converters 110, 210, 310 and 410 and the second power converters 120, 220, 320 and 420 may be formed in plural.

Each of the plurality of power supply panels (100, 200, 300 and 400) may be one of the one or more first power conversion devices (110, 210, 310 and 410) according to the state of the one or more power supply sources (10). The DC power may be supplied to one or more second power converters 12, 220, 320, and 420.

The first power converters 110, 210, 310 and 410 are devices that convert the supplied power into DC power, such as a converter.

The first power converters 110, 210, 310 and 410 may be AC / DC converters that convert AC power to DC power, or DC / DC converters that convert DC power to DC power.

The one or more first power converters 110, 210, 310, and 410 may include one or more of an AC / DC converter that converts AC power to DC power and a DC / DC converter that converts the level of DC power. have.

The one or more first power converters 110, 210, 310, and 410, three converters 110 # 1 to # 3, 210 # 1 to # 3 corresponding to each of the one or more power supply sources 10, 310 # 1 to # 3 and 410 # 1 to # 3).

The one or more first power converters 110, 210, 310, and 410 may each include the first AC power supply 10 # 1, the battery power supply 10 # 2, and the second AC power supply 10 # 3, respectively. And a first to third converter (110 # 1 to # 3, 210 # 1 to # 3, 310 # 1 to # 3 and 410 # 1 to # 3) connected to and receiving power from a connected power source can do.

According to this, the first AC power supply 10 # 1 is connected to the first converters 110 # 1, 210 # 1, 310 # 1 and 410 # 1, so that the first converters 110 # 1 and 210 AC power is supplied to # 1, 310 # 1 and 410 # 1, and the battery power 10 # 2 is connected to the second converters 110 # 2, 210 # 2, 310 # 2 and 410 # 2 Is supplied to the second converter (110 # 2, 210 # 2, 310 # 2 and 410 # 2) DC power, the second AC power supply (10 # 3) is a third converter (110 # 3 , 210 # 3, 310 # 3 and 410 # 3, to supply AC power to the third converters 110 # 3, 210 # 3, 310 # 3 and 410 # 3.

The first converter (110 # 1, 210 # 1, 310 # 1 and 410 # 1), may be an AC / DC converter that converts AC power to DC power, and the second converter 110 # 2, 210 # 2, 310 # 2 and 410 # 2) may be DC / DC converters that convert the level of DC power, and the third converters 110 # 3, 210 # 3, 310 # 3 and 410 # 3 , It may be an AC / DC converter that converts AC power to DC power.

Each of the one or more first power converters 110, 210, 310 and 410 may include opening and closing means for opening and closing a connection to each of the front end and the rear end.

The opening and closing means is provided at each of the input terminals and the output terminals of the one or more first power converters 110, 210, 310, and 410, so that the one or more first power converters 110, 210, 310, and 410 It may be a switch that regulates the input / output power.

Here, the opening / closing means provided at the input terminal may be a circuit breaker that detects overcurrent and cuts off the circuit.

More specifically, the first converters 110 # 1, 210 # 1, 310 # 1 and 410 receiving AC power from the first AC power supply 10 # 1 and the second AC power supply 10 # 3 # 1) and an input terminal of the third converters 110 # 3, 210 # 3, 310 # 3 and 410 # 3 may be provided with an AC Circuit Breaker (ACB), and the battery power 10 A molded circuit breaker (MCCB) may be provided at an input terminal of the second converters 110 # 2, 210 # 2, 310 # 2, and 410 # 2, which are supplied with DC power from # 2).

The opening and closing means may open and close the connection of the one or more first power conversion devices 110, 210, 310 and 410 according to the operation of the one or more first power conversion devices 110, 210, 310 and 410. .

For example, when power is not supplied from the one or more power sources 10, opening and closing means provided at each of the input terminal and the output terminal is opened to disconnect the connection of the corresponding converter.

In the one or more first power converters 110, 210, 310 and 410, the output terminal may be connected to one power terminal (O1, O2, O3 and O4).

That is, the one or more first power converters 110, 210, 310 and 410, the output terminal is commonly connected to the power terminals (O1, O2, O3 and O4), the one or more first power converter The DC power converted at (110, 210, 310 and 410) may flow.

Accordingly, the power terminals (O1, O2, O3 and O4), the output terminals of the one or more first power converters (110, 210, 310 and 410) are commonly connected, the one or more first power converter It may be a converter through which the DC power output from (110, 210, 310 and 410) flows.

The power terminals O1, O2, O3 and O4 may be connected to input terminals of the second power converters 120, 220, 320 and 420.

The power terminals O1, O2, O3 and O4 may be connected to any two power terminals O1 to O4 among the power terminals of the other power panels 100, 200, 300 or 400.

The power terminals (O1, O2, O3, and O4) are connected to input terminals of the second power converters 120, 220, 320, and 420, so that the DC power is supplied to the other power panels 100, 200, and 300. Or 400), or the second power converters 120, 220, 320, and 420.

The power terminals (O1, O2, O3, and O4) may be connected to any two breakers among the plurality of breakers 130.

That is, the power terminals O1, O2, O3 and O4 may be disconnected by any two circuit breakers connected to the power terminals O1, O2, O3 and O4.

Through this, the DC power delivered from the power terminals O1, O2, O3 and O4 can be controlled by a circuit breaker connected to the power terminals O1, O2, O3 and O4.

As described above, the power terminals (O1, O2, O3 and O4) to which the output terminals of the one or more first power converters 110, 210, 310 and 410 are commonly connected are the second power converters 120, 220, 320 and 420), the transmission of the DC power converted and output by the one or more first power converters 110, 210, 310 and 410 through the power terminals O1, O2, O3 and O4 Can be done.

The DC power converted and output by the one or more first power converters 110, 210, 310, and 410 may be transferred to the second power converters 120, 220, 320, and 420.

The one or more first power converters 110, 210, 310, and 410 may include the first to third converters 110 # 1 to 110 # 3, 210 # 1 to 210 # 3, 310 # 1 to 310 #. Any one of 3 and 410 # 1 to 410 # 3) may be operated to supply the DC power to the second power converters 120, 220, 320 and 420.

The plurality of power supply panels (100, 200, 300 and 400), the second power converter (120, 220, 320 and 420) of the converter for supplying the DC power (110 # 1 to # 3, 210 # When the power supply of 1 to # 3, 310 # 1 to # 3 and 410 # 1 to # 3 is interrupted, the converters 110 # 1 to # 3, 210 # 1 to # 3, 310 # 1 to # The DC power may be supplied to the second power converters 120, 220, 320, and 420 through a converter other than 3 and 410 # 1 to # 3).

The one or more first power converters 110, 210, 310 and 410 are converters 110 # 1 to # 3 that supply the DC power to the second power converters 120, 220, 320 and 420. , 210 # 1 to # 3, 310 # 1 to # 3 and 410 # 1 to # 3, when the power supply is stopped, the converters 110 # 1 to # 3, 210 # 1 to # 3, 310 # While 1 to # 3 and 410 # 1 to # 3) are switched to the other converter, the converters 110 # 2, 210 # 2, 310 # 2 and the power supplied from the battery power 10 # 2 and 410 # 2), the DC power may be supplied to the second power converters 120, 220, 320, and 420.

Here, when the power supply of the converters 110 # 1 to # 3, 210 # 1 to # 3, 310 # 1 to # 3 and 410 # 1 to # 3 is interrupted, the converter 110 # 1 To # 3, 210 # 1 to # 3, 310 # 1 to # 3 and 410 # 1 to # 3), the converters 110 # 1 to # 3, 210 # 1 to # 3, 310 # 1 to # 3 And a source connected to 410 # 1 to # 3) and a rating of the DC power supply.

For example, the first converters 110 # 1, 210 # 1, 310 # 1, and 410 # 1 connected to the first AC power supply 10 # 1 may be used as the second power converters 120, 220, and 320. And 420) when the DC power output from the first converters 110 # 1, 210 # 1, 310 # 1, and 410 # 1 is reduced to a predetermined level or less while supplying the DC power. , The third converters 110 # 3, 210 # 3, 310 # 3 and 410 # 3 which are other converters than the first converters 110 # 1, 210 # 1, 310 # 1 and 410 # 1 A may supply the DC power to the second power converter 120.

In this case, the one or more first power converters 110, 210, 310, and 410 of the shopping mall may include the first converters 110 # 1, 210 # 1, 310 # 1, and 410 # 1. While switching to (110 # 3, 210 # 3, 310 # 3 and 410 # 3), the second converters 110 # 2, 210 # 2, 310 # 2 connected to the battery power 10 # 2 and 410 # 2), the DC power may be supplied to the second power converters 120, 220, 320, and 420.

That is, the second converters 110 # 2, 210 # 2, 310 # 2 and 410 # 2 connected to the battery power supply 10 # 2, the second power converters 120, 220, 320 and 420 When the supply of the DC power to) is stopped, the DC power may be supplied to the second power converters 120, 220, 320 and 420 until the supply of the DC power is switched and restored. .

The second power converters 120, 220, 320, and 420 may be formed in plural.

The second power converters 120, 220, 320, and 420 are devices that convert the supplied DC power into the driving power, such as an inverter.

The second power converter (120, 220, 320 and 420), when the load is a load driven by AC power, the DC received from the one or more first power converter (110, 210, 310 and 410) It may be an inverter that converts power to AC driving power.

The second power converters 120, 220, 320, and 420, when the load is a load driven by DC power, DC received from the one or more first power converters 110, 210, 310, and 410 It may be an inverter that converts power to DC driving power.

The second power converters 120, 220, 320, and 420 may be provided in a number corresponding to the load 20.

The load 20 may be formed in plural.

The second power conversion device (120, 220, 320 and 420), three or more inverters corresponding to the load 20 (120 # 1 to # 3, 220 # 1 to # 3, 320 # 1 to # 3 And 420 # 1 to # 3).

Each of the second power converters 120, 220, 320, and 420 may be connected to each of the loads 20 to supply the driving power to the connected loads.

Each of the second power converters 120, 220, 320 and 420 may include opening and closing means for opening and closing a connection at the front end.

The opening / closing means is provided at the input terminals of the second power converters 120, 220, 320, and 420, and switches to interrupt the power input to the second power converters 120, 220, 320, and 420. Can be

Here, the opening / closing means provided at the input terminal may be a circuit breaker that detects overcurrent and cuts off the circuit.

The driving power converted and output by the second power converters 120, 220, 320 and 420 may be transmitted to each of the loads 20.

Here, the load 20 may include an electric motor (M) load.

Each of the plurality of power supply panels 100, 200, 300, and 400 may be connected to each of the power supply terminals O1 to O4 of two neighboring power supply panels in which the power supply terminals O1 to O4 are different.

The plurality of power supply panels (100, 200, 300 and 400), each of the plurality of circuit breakers (a) between the power supply terminal (O1 to O4) of one of the power supply panel and the power supply terminals (O1 to O4) of two neighboring power supply panel ( 130) may be respectively disposed.

The power terminals O1 to O4 of each of the plurality of power supply panels 100, 200, 300, and 400 may be connected to the plurality of circuit breakers 130-130a to 130d.

Each of the plurality of power supply panels 100, 200, 300, and 400 may be connected to any two of the circuit breakers 130 in which the power terminals O1 to O4 to which the DC power is output are output.

That is, the power terminals O1 to O4 of each of the plurality of power panels 100, 200, 300, and 400 may be connected to two circuit breakers.

For example, when the plurality of power panels 100, 200, 300, and 400 are four as illustrated in FIG. 1, the first power panel 100 is coupled with the first breaker 130a and the second breaker 130b. Is connected, the second power supply panel 200 is connected to the second circuit breaker (130b) and the fourth circuit breaker (130d), the third power supply panel 300 is the first circuit breaker (130a) and the third circuit breaker (130c) ), And the fourth power supply panel 400 may be connected to the third circuit breaker 130c and the fourth circuit breaker 130d.

Accordingly, each of the plurality of circuit breakers 130 may be connected to two power supply panels.

For example, the first circuit breaker 130a is connected to the first power panel 100 and the third power panel 300, and the second circuit breaker 130b includes the first power panel 100 and the first 2 is connected to the power supply panel 200, the third circuit breaker 130c is connected to the third power supply panel 300 and the fourth power supply panel 400, and the fourth circuit breaker 130d is the second It can be connected to the power supply panel 200 and the fourth power supply panel 400.

The plurality of power supply panels 100, 200, 300 and 400 may be connected to each of the power supply terminals of the other two power supply panels, where the power supply terminals of one power supply panel are different.

That is, the plurality of power supply panels 100, 200, 300, and 400 may be connected to each of the other two power supply panels.

For example, the first power panel 100 is connected to the third power panel 300 through the first breaker 130a, and the second power panel 200 through the second breaker 130b. And the second and third power panels 200 and 300, respectively.

In addition, the second power panel 200 is connected to the first power panel 100 through the second circuit breaker 130b, and the third power panel 300 through the fourth circuit breaker 130d. It may be connected to the first and fourth power panels 100 and 400, respectively.

In addition, the third power panel 300 is connected to the first power panel 100 through the first breaker 130a, and the fourth power panel 400 through the third breaker 130c. It may be connected to the first and fourth power panels 100 and 400, respectively.

In addition, the fourth power panel 400 is connected to the third power panel 300 through the third circuit breaker 130c, and the second power panel 200 through the fourth circuit breaker 130d. And the second and third power panels 200 and 300, respectively.

The plurality of breakers 130 connected to the power terminals O1 to O4 may be DC breakers that cut off DC power.

Each of the power terminals O1 to O4 may be connected to any two of the plurality of breakers 130.

Each of the plurality of power supply panels 100, 200, 300, and 400 includes a first power supply terminal corresponding to one end of the power supply terminal and a second power supply terminal corresponding to the other end of the power supply terminal, and the plurality of circuit breakers The 130 is disposed between each of the two power supply panels, and may connect or disconnect the first power supply terminal of one power supply panel and the second power supply terminal of the other power supply panel.

The first power terminal and the second power terminal may be power terminals having extended power terminals of the plurality of power panels 100, 200, 300, and 400.

The first power supply terminal and the second power supply terminal, the power supply terminals of the plurality of power supply panels 100, 200, 300 and 400 are extended, and the outside of the plurality of power supply panels 100, 200, 300 and 400 In may be a power terminal connected to the plurality of circuit breakers 130.

That is, the first power supply terminal and the second power supply terminal may correspond to power ports of the plurality of power supply panels 100, 200, 300, and 400.

Accordingly, each of the plurality of power supply panels 100, 200, 300, and 400 may be provided with two power ports of the first and second power terminals.

In this case, the plurality of circuit breakers 130 may be disposed between each of the two power panels to connect or disconnect the first power terminal of one power panel and the second power terminal of the other power panel.

That is, each of the plurality of circuit breakers 130 is disposed between the first power supply terminal of the power supply panel on one side and the second power supply terminal of the power supply panel on the other side, respectively, and each of the first power supply terminal and the second power supply terminal of the two power supply panels on both sides. Can be connected.

Accordingly, each of the plurality of circuit breakers 130 may be connected to a first power terminal of one power panel on one side, and to each of the second power terminals of a power panel adjacent to one power panel on the other side.

Accordingly, each of the plurality of power supply panels (100, 200, 300, and 400) is connected to two power supply panels at both sides, respectively, so as to establish an inner-loop connection structure between the plurality of power supply panels (100, 200, 300, and 400). Can be formed.

The plurality of circuit breakers 130 are provided in each of the electric paths between the power terminals of two neighboring power terminals among the power terminals O1 to O4, thereby intermittently connecting the plurality of power terminals 100, 200, 300, and 400. can do.

The plurality of circuit breakers 130, the plurality of power supply panels (100, 200, 300 and 400) in the one or more of the first power converter (110, 210, 310 and 410), each of the output terminal is connected to the power terminal ( O1 to O4), two adjacent power terminals may be provided in each of the converters connected to each other.

That is, the plurality of circuit breakers 130 may be provided between the power terminals (O1 to O4), thereby intermittently connecting the plurality of power supply panels (100, 200, 300, and 400).

According to this, the plurality of power supply panels (100, 200, 300 and 400) are connected to each other through the power supply terminals (O1 to O4), the plurality of power supply panels by opening and closing the plurality of circuit breakers 130 ( 100, 200, 300 and 400) may be intermittent.

The plurality of circuit breakers 130 disposed between the power stages O1 to O4 to connect or disconnect between the power stages O1 to O4 may be DC-only circuit breakers (MCCBs).

The plurality of breakers 130, the DC power, the driving power, the one or more first power converters (110, 210, 310 and 410) and the load 20 according to at least one of the state of the opening and closing differently Thus, the DC power may be connected or interrupted between each of the power terminals O1 to O4.

Here, the at least one state, when the DC power is changed from the initial state, when the driving power is changed from the initial state, the power of the one or more first power converters (110, 210, 310 and 410) It may be at least one of a case in which the supply state is changed and a case in which the driving state of the load 20 is changed.

For example, when the DC power or the driving power is below a standard rating, when one or more of the first power converters 110, 210, 310 and 410 has a failure / accident, the power supply state has changed, or It may be the case that the driving power supplied to the load 20 is reduced and the driving state of the load 20 is changed.

The plurality of power supply panels (100, 200, 300 and 400), the plurality of circuit breakers 130 disposed between the power supply terminals (O1 to O4), the plurality of power supply panels (100, 200, 300 and 400) By connecting or disconnecting each of the adjacent power supply panels, the connection between the power supply terminals O1 to O4 may be formed in a ring structure.

For example, the power terminals O1 to O4 of each of the plurality of power panels 100, 200, 300, and 400 are connected to transfer the DC power between the plurality of power panels 100, 200, 300, and 400. This can be done.

Accordingly, the plurality of power supply panels 100, 200, 300, and 400 may be connected in a loop form.

That is, the power terminals (O1 to O4) of each of the plurality of power supply panels (100, 200, 300 and 400) are connected in the loop form, so that each of the plurality of power supply panels (100, 200, 300 and 400) The connection of the power terminals (O1 to O4) can be connected in a loop form.

The plurality of power supply panels (100, 200, 300 and 400), the power supply terminals of any one of the plurality of power supply panels (100, 200, 300 and 400) and the power supply terminals of two neighboring power supply panels (O1 to O4) (O1 to O4) may be composed of a number of converters each connected.

For example, a first converter to which the first power panel 100 and the third power panel 100 are connected, a second converter to which the first power panel 100 and the second power panel 200 are connected, The third power panel 300 and the fourth power panel 400 may be connected to a third converter, and the second power panel 200 and the fourth power panel 400 may be connected to a fourth converter. The first to fourth converters may be formed in a loop shape.

Here, the first circuit breaker (130a) is the first converter, the second circuit breaker (130b) is the second circuit, the third circuit breaker (130c) is the third circuit, the fourth circuit breaker (130d) ) Is provided in each of the fourth converters, so that the opening and closing of the first to fourth converters can be controlled.

Accordingly, the plurality of circuit breakers 130 may interrupt the connection between the plurality of power supply panels 100, 200, 300, and 400 in which a plurality of converters are formed in a loop form.

The plurality of circuit breakers 130 may be provided in a number corresponding to the plurality of power supply panels 100, 200, 300 and 400.

The plurality of breakers 130, when the plurality of power supply panels (100, 200, 300 and 400) is N, may be provided in the number of N.

For example, when the plurality of power supply panels 100, 200, 300 and 400 are four, that is, when N is 4, four may be provided.

Each of the plurality of circuit breakers 130 may be opened during normal operation and closed during operation to interrupt the connection between the plurality of power supply panels 100, 200, 300, and 400.

Accordingly, each of the plurality of power supply panels 100, 200, 300, and 400 may be connected to another power supply panel through opening and closing of each of the plurality of breakers 130.

The plurality of circuit breakers 130 are closed when the DC power is connected between the plurality of power panels 100, 200, 300, and 400, and the between the plurality of power panels 100, 200, 300, and 400 are closed. It can be opened when the DC power is cut off.

Each of the plurality of power supply panels 100, 200, 300, and 400 may be connected to another power supply panel through the plurality of circuit breakers 130, as illustrated in FIG. 1.

The plurality of power supply panels (100, 200, 300 and 400), as shown in Figure 1, the first power supply panel 100, the second power supply panel 200, the third power supply panel 300 And the power terminals O1 to O4 of each of the fourth power panels 400 are connected in a ring structure, and the power terminals O1 to O4 of each of the plurality of power panels 100, 200, 300 and 400. Each of the first to fourth circuit breakers 130a to 130d may be provided therebetween.

The connection form will be described in more detail with reference to FIG. 1.

The connection form will be described in more detail with reference to FIG. 1.

The first power terminal O1 of the first power panel 100 includes a second power terminal O2 of the neighboring second power panel 200 and a third power terminal of the third power panel 300. Is connected to (O3), the second breaker 130b is provided between the first and second power terminals (O1 and O2), the first and third power terminals (O1 and O3) between the first 1 circuit breaker 130a is provided, the connection between the first and second power panels 100 and 200 is interrupted by the second circuit breaker 130b, and the first and third power panels 100 and 300 are connected. The connection between them may be interrupted by the first breaker 130a.

The second power terminal O2 of the second power panel 200 is a fourth of the first power terminal O1 and the fourth power panel 400 of the neighboring first power panel 100. It is connected to the power terminal (O4), the second breaker (130b) is provided between the first and second power terminals (O1 and O2), between the second and fourth power terminals (O2 and O4) The fourth circuit breaker 130d is provided, and the connection between the first and second power panels 100 and 200 is interrupted by the second circuit breaker 130b, and the second and fourth power panels 200 and 400) may be interrupted by the fourth circuit breaker 130d.

The third power supply terminal O3 of the third power supply panel 300 includes a fourth power supply terminal O1 and the fourth power supply unit 400 of the neighboring first power supply unit 100. Is connected to the power terminal (O4), the first and third power terminals (O1 and O3) between the first circuit breaker (130a) is provided, between the third and fourth power terminals (O3 and O4) The third circuit breaker 130c is provided, and the connection between the first and third power panels 100 and 300 is interrupted by the first circuit breaker 130a, and the third and fourth power panels 300 and 400) may be interrupted by the third circuit breaker 130c.

The fourth power terminal O4 of the fourth power panel 400 includes a second power terminal O2 of the neighboring second power panel 200 and a third power source of the third power panel 300. It is connected to the terminal (O3), the fourth and the fourth circuit breaker (130d) is provided between the second and fourth power terminals (O2 and O4), the third and fourth power terminals (O3 and O4) between the A third circuit breaker 130c is provided, and the connection between the second and fourth power panels 200 and 400 is interrupted by the fourth circuit breaker 130d, and the third and fourth power panels 300 and 400 are connected. ) Connection may be interrupted by the third circuit breaker 130c.

By connecting the first to fourth power panels 100, 200, 300 and 400 in this way, power terminals O1 to O4 of the plurality of power panels 100, 200, 300 and 400 are looped. Form.

As described above, the DC power may be transferred between the plurality of power panels 100, 200, 300 and 400 by connecting each of the plurality of power panels 100, 200, 300 and 400 to neighboring power panels. have.

That is, each of the plurality of power supply panels (100, 200, 300, and 400) is connected to a neighboring power supply panel, as shown in FIG. 1, the power supply terminal of the plurality of power supply panels (100, 200, 300 and 400) ( O1 to O4) are connected in the form of a loop, so that the first power supply panel 100 is connected to the second power supply panel 200 and the third power supply panel 300 and the second power supply panel 200 ) Or the third power supply panel 300 and the DC power supply, and the second power supply unit 200 is connected to the first power supply panel 100 and the fourth power supply panel 400 to The first power panel 100 or the fourth power panel 400 and the DC power are supplied and supplied, and the third power panel 300 includes the first power panel 100 and the fourth power panel ( 400) to supply and receive the first power panel 100 or the fourth power panel 400 and the DC power, and the fourth power panel 400 includes the second power panel 200 and It is connected to the third power supply panel 300 The second power panel 200 or the third power panel 300 and the DC power may be supplied and supplied.

The plurality of power supply panels (100, 200, 300, and 400) connected in a loop form, between the plurality of power supply panels (100, 200, 300, and 400) by opening and closing each of the plurality of circuit breakers (130) The DC power supply may be provided.

For example, when the first circuit breaker 130a connected to a circuit between the first power panel 100 and the third power panel 300 is closed, the first power panel 100 and the third power supply are closed. The supply of the DC power between the half 300 may be made, and the second circuit breaker 130b connected to the converter between the first power supply panel 100 and the second power supply panel 200 is closed. In the case of, the supply and reception of the DC power between the first power panel 100 and the second power panel 200 may be made, and the third power panel 300 and the fourth power panel 400 ), When the third circuit breaker 130c connected to the converter is closed, the supply of DC power between the third power supply panel 300 and the fourth power supply panel 400 may be performed, When the fourth circuit breaker 130d connected to a circuit between the second power panel 200 and the fourth power panel 400 is closed, the second power panel 200 And the fourth may be the be able to supply the DC power carried between the power semi-400.

Each of the plurality of power supply panels 100, 200, 300 and 400 includes the one or more first power converters 110, 210, 310 and 410 included in each, and the second power converters 120 and 220, respectively. 320 and 420) can be controlled and monitored.

Each of the plurality of power supply panels 100, 200, 300 and 400 includes the one or more first power converters 110, 210, 310 and 410 included in each, and the second power converters 120 and 220, respectively. 320 and 420), the opening and closing of each of the first to fourth circuit breakers 130a to 130d may be controlled according to a result of controlling and monitoring the operations of the 320 and 420).

Each of the plurality of power supply panels 100, 200, 300 and 400 includes the one or more first power converters 110, 210, 310 and 410 included in each, and the second power converters 120 and 220, respectively. 320 and 420) may be controlled and monitored to detect the states of the DC power supply and the driving power supply.

Each of the plurality of power supply panels 100, 200, 300, and 400 may be supplied with power from any one of the one or more power supply sources 10 and converted into the DC power.

That is, each of the plurality of power supply panels 100, 200, 300, and 400 may be selectively supplied with power from any one of the one or more power supply sources 10.

Each of the plurality of power supply panels 100, 200, 300, and 400 may be supplied with power from any one of the one or more power supply sources 10 according to a predetermined supply criterion and converted into the DC power.

The supply criterion may be a criterion for the power supply priority of the one or more power sources 10.

The plurality of power supply panels 100, 200, 300 and 400 select one of the one or more first power converters 110, 210, 310 and 410 according to the state of the one or more power supply sources 10 Thus, the DC power may be delivered to the second power converters 120, 220, 320, and 420 using the selected converter.

That is, each of the plurality of power supply panels (100, 200, 300 and 400), the second power conversion device (120, 220, 320) and one of the converter selected according to the state of the one or more power supply (10) 420) may be delivered to the DC power.

The plurality of power supply panels (100, 200, 300 and 400), the converter and the converter that is transmitting the DC power to the second power converter (120, 220, 320 and 420) for converting the driving power When an abnormality occurs in one or more of the power sources corresponding to, the DC power may be delivered to the second power converters 120, 220, 320 and 420 to a converter other than the converter.

That is, each of the plurality of power supply panels (100, 200, 300 and 400), if any one or more of the power supply corresponding to the converter and the converter that is transmitting the DC power, an abnormality occurs outside the converter By switching to another converter, the DC power may be delivered to the second power converters 120, 220, 320 and 420 by the converted converter.

The plurality of power supply panels (100, 200, 300 and 400), the second power converter (120, 220, 320 and 420) of the converter that is transmitting the DC power and the power source corresponding to the converter When an abnormality occurs in any one or more, a power supply source and a converting device supplying power to supply the DC power to the second power converters 120, 220, 320, and 420 by a converter other than the converter. You can switch.

The plurality of circuit breakers (130, 230, 330 and 430), when the power supply of one or more of the plurality of power supply panel (100, 200, 300 and 400) is stopped, the power supply is stopped and the power supply is stopped The breaker between the power supply panel and the adjacent power supply panel is closed, and the DC power supply can be supplied from the adjacent power supply panel to the interrupted power supply unit by connecting the interrupted power supply unit and the adjacent power supply panel.

In this case, the interrupted power supply panel stops supplying power, and the DC power supply is supplied from the converter connected to the battery power supply B until the DC power supplied from the adjacent power supply panel is supplied. You can.

The system 1000 monitors the state of at least one of the plurality of power supply panels 100, 200, 300 and 400, and the plurality of circuit breakers 130, and according to the monitoring result, the plurality of power supply panels ( 100, 200, 300 and 400) and a control device 600 for controlling at least one of the plurality of breakers 130 may be further included.

That is, the plurality of power supply panels 100, 200, 300 and 400 may be controlled by the control device 600.

Each of the plurality of power supply panels 100, 200, 300, and 400 may communicate with the control device 600 and operate according to a communication result with the control device 600.

For example, a control command may be received from the control device 600 to operate according to the control command, or status information may be transmitted to the control device 600.

Each of the plurality of power supply panels 100, 200, 300 and 400 includes the one or more first power converters 110, 210, 310 and 410 included in each, and the second power converters 120 and 220, respectively. Depending on the result of controlling and monitoring the operations of 320 and 420, the opening and closing control of each of the first to fourth circuit breakers 130a to 130d may be requested to the control device 600.

Each of the plurality of power supply panels 100, 200, 300 and 400 includes the one or more first power converters 110, 210, 310 and 410 included in each, and the second power converters 120 and 220, respectively. The results of controlling and monitoring the operations of 320 and 420 may be transmitted to the control device 600.

Each of the plurality of power supply panels 100, 200, 300 and 400 includes the one or more first power converters 110, 210, 310 and 410 included in each, and the second power converters 120 and 220, respectively. By controlling and monitoring the operations of 320 and 420, the results of detecting the states of the DC power supply and the driving power supply may be transmitted to the control device 600.

Here, each of the plurality of power supply panels (100, 200, 300 and 400), the one or more first power converters (110, 210, 310 and 410) and the second power converter (120, 220, 320 and 420), a control unit for monitoring at least one abnormal state of the one or more power sources 10, the one or more first power converters 110, the DC power, the driving power, and the load 20 (140, 240, 340 and 440) may be further included.

Here, each of the plurality of power supply panels (100, 200, 300 and 400), the one or more first power converters (110, 210, 310 and 410) and the second power converter (120, 220, 320 and 420), a control unit for monitoring at least one abnormal state of the one or more power sources 10, the one or more first power converters 110, the DC power, the driving power, and the load 20 (140, 240, 340 and 440) may be further included.

The control unit 140, 240, 340 and 440 may be a central control device of each of the plurality of power supply panels 100, 200, 300 and 400.

The control unit 140, 240, 340 and 440 may include a plurality of control means for controlling the plurality of power supply panels 100, 200, 300 and 400.

The control units 140, 240, 340, and 440 may further include a plurality of electronic devices for performing functions of the plurality of power supply panels 100, 200, 300, and 400.

For example, storage means for storing software / application / programs for performing and controlling functions of the plurality of power supply panels 100, 200, 300 and 400, dedicated control means including the storage means, communication means, display means and It may include one or more of the input means.

The control units 140, 240, 340 and 440 may be controlled by the control device 600.

The control unit (140, 240, 340 and 440), the PLC controlling the one or more first power converters (110, 210, 310 and 410) and the second power converter (120, 220, 320 and 420) (Programmable Logic Controller).

The controllers 140, 240, 340 and 440 monitor the states of the one or more first power converters 110, 210, 310 and 410 and the second power converters 120, 220, 320 and 420. Thus, the operation of the one or more first power converters 110, 210, 310 and 410 and the second power converters 120, 220, 320 and 420 may be controlled based on the monitored result.

The control unit (140, 240, 340 and 440), the one or more first power conversion device (110, 210, 310 and 410) based on the state of the one or more power supply 10 and the load (20) And it is possible to control the operation of the second power conversion device (120, 220, 320 and 420).

The controllers 140, 240, 340, and 440 may control the operation and conversion of the DC power supply by controlling operations of the one or more first power converters 110, 210, 310, and 410.

The controllers 140, 240, 340 and 440 may also control opening and closing of each of the opening and closing means included in the one or more first power converters 110, 210, 310 and 410.

The control units 140, 240, 340, and 440 may control the operation of each of the second power conversion devices 120, 220, 320, and 420 to control conversion and supply of the driving power.

The controllers 140, 240, 340, and 440 may also control opening and closing of each of the opening and closing means included in the second power conversion devices 120, 220, 320, and 420.

The control unit (140, 240, 340 and 440) also, by performing communication with any one or more of the external communication device and the control device 600, the one or more first power conversion device 110 according to the communication result , 210, 310 and 410) and the second power converters 120, 220, 320 and 420.

For example, from the control device 600 for the operation control of any one or more of the one or more of the first power converter (110, 210, 310 and 410) and the second power converter (120, 220, 320 and 420) Upon receiving a control command, perform one or more operations of the one or more first power converters 110, 210, 310 and 410 and the second power converters 120, 220, 320 and 420 according to the control command. Can be controlled.

The controllers 140, 240, 340, and 440 may be controlled to receive power from any one of the one or more power sources 10 and convert it to the DC power.

That is, the controllers 140, 240, 340, and 440 may be controlled to selectively receive power from any one of the one or more power sources 10.

The controllers 140, 240, 340, and 440 may be controlled to receive power from any one of the one or more power sources 10 and convert it to the DC power according to a predetermined supply criterion.

The supply criterion may be a criterion for the power supply priority of the one or more power sources 10.

For example, the first AC power source 10 # 1, the second AC power source 10 # 3, and the battery power source 10 # 3 may be set in this order.

When the supply standard is such, the controllers 140, 240, 340, and 440 may include the first AC power supply 10 # 1, the second AC power supply 10 # 3, and the battery power supply 10 # 3. It can be controlled to receive power in order.

The control unit (140, 240, 340 and 440), when receiving power from the first AC power supply (10 # 1), the first conversion device (110 #) connected to the first AC power supply (10 # 1) 1, 210 # 1, 310 # 1 and 410 # 1) can be controlled.

In this case, the control unit (140, 240, 340 and 440), the opening and closing means of the first converter (110 # 1, 210 # 1, 310 # 1 and 410 # 1) is closed, the second converter (110 # 2, 210 # 2, 310 # 2 and 410 # 2) and opening / closing means of the third converters 110 # 3, 210 # 3, 310 # 3 and 410 # 3 are opened, and the first The converters 110 # 1, 210 # 1, 310 # 1 and 410 # 1 are connected and the second converters 110 # 2, 210 # 2, 310 # 2 and 410 # 2 and the third converter (110 # 3, 210 # 3, 310 # 3 and 410 # 3) can be separated.

The control unit (140, 240, 340 and 440), when receiving power from the second AC power supply (10 # 3), the third conversion device (110 #) connected to the second AC power supply (10 # 3) 2, 210 # 2, 310 # 2 and 410 # 2) can be controlled.

In this case, the control unit (140, 240, 340 and 440), the opening and closing means of the third converter (110 # 3, 210 # 3, 310 # 3 and 410 # 3) closed, the first converter (110 # 1, 210 # 1, 310 # 1 and 410 # 1) and opening and closing means of the second converters 110 # 2, 210 # 2, 310 # 2 and 410 # 2 are opened, and the third The converters 110 # 3, 210 # 3, 310 # 3 and 410 # 3 are connected and the first converters 110 # 1, 210 # 1, 310 # 1 and 410 # 1 and the second converter (110 # 2, 210 # 2, 310 # 2 and 410 # 2) can be separated.

The control unit (140, 240, 340 and 440), when receiving power from the battery power (10 # 2), the second converter connected to the battery power (10 # 2) (110 # 2, 210 # 2, 310 # 2 and 410 # 2) can be controlled.

In this case, the control unit (140, 240, 340 and 440), the opening and closing means of the second converter (110 # 2, 210 # 2, 310 # 2 and 410 # 2) is closed, the first converter (110 # 1, 210 # 1, 310 # 1 and 410 # 1) and opening and closing means of the third converters 110 # 3, 210 # 3, 310 # 3 and 410 # 3 are opened, and the second Only the converters 110 # 2, 210 # 2, 310 # 2 and 410 # 2 are connected and the first converters 110 # 1, 210 # 1, 310 # 1 and 410 # 1 and the third converter (110 # 3, 210 # 3, 310 # 3 and 410 # 3) can be separated.

The control unit (140, 240, 340 and 440), by selecting one of the one or more of the first power conversion device (110, 210, 310 and 410) according to the state of the one or more power supply 10, the It may be controlled to deliver the DC power to the second power converter (120, 220, 320 and 420).

That is, the control unit 140, 240, 340 and 440 converts the DC power through the selected one of the one or more first power converters 110, 210, 310 and 410 to convert the second power converter. It may be controlled to deliver to (120).

For example, when an abnormality occurs in the first AC power source 10 # 1 and the second AC power source 10 # 3 among the one or more power supply sources 10, the agent connected to the battery power source 10 # 2 2 By selecting the converters (110 # 2, 210 # 2, 310 # 2 and 410 # 2), the second converter (110 # 2, 210 # 2, 310 # 2 and 410 # 2) is the battery power It may be controlled to receive power from (10 # 2) to convert to the DC power, and to deliver the DC power to each of the second power converters 120, 220, 320, and 420.

The control unit (140, 240, 340 and 440), the second power conversion device (120, 220, 320 and 420) of the converter that is transmitting the DC power supply (110, 210, 310 and 410) and the converter When an abnormality occurs in any one or more of the power supply sources 10 corresponding to (110, 210, 310 and 410), other converters 110, 210, 310, and other than the converters 110, 210, 310, and 410 410) may be controlled to deliver the DC power to the second power converter (120, 220, 320 and 420).

The control unit (140, 240, 340 and 440), the second power conversion device (120, 220, 320 and 420) of the converter that is transmitting the DC power supply (110, 210, 310 and 410) and the converter When an abnormality occurs in any one or more of the power supply sources 10 corresponding to (110, 210, 310, and 410), other converters 110, 210, 310, and other than the converters 110, 210, 310, and 410 410) to switch the power supply 10 and the converter 110, 210, 310 and 410 supplying power, so as to deliver the DC power to the second power converter (120, 220, 320 and 420) You can.

For example, while receiving power from the first AC power source 10 # 1, converting the DC power to the first converters 110 # 1, 210 # 1, 310 # 1 and 410 # 1, When the first converter (110 # 1, 210 # 1, 310 # 1 and 410 # 1) is broken, or when the first AC power supply 10 # 1 is shut down, the second AC power supply The third power converter (110 # 3, 210 # 3, 310 # 3 and 410 # 3) receives the power from (10 # 3) to convert the DC power to the second power converter (120, 220, 320 and 420, the first AC power supply 10 # 1 being supplied with power is converted to the second AC power supply 10 # 3 to transmit the DC power, and the first converter 110 # 1 , 210 # 1, 310 # 1 and 410 # 1) may be converted to the third converters 110 # 3, 210 # 3, 310 # 3 and 410 # 3.

In this way, the control unit 140, 240, 340 and 440 controlling the one or more first power converters 110, 210, 310 and 410 and the second power converters 120, 220, 320 and 420 is , According to the state of the DC power or the driving power, the control device 600 may request the supply of the DC power.

For example, when the size of the driving power is smaller than the required size of the load 20, or when the DC power is insufficient, closing the plurality of breakers 130 to close the other power panels 100, 200, 300 Alternatively, the control device 600 may be requested to receive the DC power from 400).

Or, if the size of the driving power is greater than the required size of the load 20, or if the DC power is available, the plurality of circuit breakers 130 to close the other power panel (100, 200, 300 or 400) may be requested from the control device 600 to supply the DC power.

In the opposite case, the one or more first power converters 110, 210, 310, and 410 or the second power converters 120, 220, 320, and 420 may fail, causing the power terminal O1 to fail. To O4), or when the accident current flows to the power terminals (O1 to O4) due to an abnormality in the one or more power sources 10 or the load 20, the plurality of breakers Opening 130, the control device 600 may be requested to prevent the accident current from being supplied to the other power supply panel 100, 200, 300, or 400.

The control unit (140, 240, 340 and 440), when the abnormality occurs in the one or more power sources 10, the plurality of circuit breakers 130 closed, the other connected to the power terminals (O1 to O4) The control device 600 may request control to receive the DC power from the power supply panel 100, 200, 300, or 400.

The control unit (140, 240, 340 and 440), in the event of an abnormality in the other power supply panel (100, 200, 300 or 400) connected to the power terminals (O1 to O4), the plurality of breakers 130 Closed, the control unit 600 may request control to supply DC power to the other power supply panels 100, 200, 300, or 400.

The control unit (140, 240, 340 and 440), when an abnormality occurs in the other power supply panel (100, 200, 300 or 400) connected to the power terminals (O1 to O4), the one or more power supply (10) The supply source 10 that is controlled to receive more power from any one of the sources and closes the plurality of circuit breakers 130 to supply more power through the power terminals O1 to O4, and a conversion corresponding thereto. Control may be requested from the control device 600 to supply the DC power converted by the devices 110, 210, 310 and 410 to the other power supply panels 100, 200, 300 or 400.

The control device 600 may control the operation of the plurality of breakers 130 to control the supply and demand of the DC power.

For example, the plurality of circuit breakers 130 may be closed to control the supply of the DC power between the plurality of power supply panels 100, 200, 300, and 400, or to supply the DC power.

The control device 600 communicates with each of the plurality of power supply panels 100, 200, 300, and 400, based on status information received from each of the plurality of power supply panels 100, 200, 300, and 400. Each of the plurality of power supply panels 100, 200, 300 and 400 may be controlled.

For example, according to the state information of the DC power and the driving power received from each of the plurality of power panels 100, 200, 300, and 400, each of the plurality of power panels 100, 200, 300, and 400 It is possible to control conversion and supply of DC power and conversion and supply of the driving power of each of the plurality of power supply panels 100, 200, 300 and 400.

The control device 600 communicates with each of the plurality of power supply panels 100, 200, 300, and 400, based on status information received from each of the plurality of power supply panels 100, 200, 300, and 400. The plurality of power supply panels (100, 200, 300, and 400) may control the conversion and supply of each of the driving power sources, or the plurality of circuit breakers 130.

The control device 600 also detects the states of the one or more power sources 10 and the load 20, or the state of the one or more power sources 10 and the load 20 from external communication means. Receiving information on, and converting and supplying the driving power of each of the plurality of power supply panels 100, 200, 300 and 400 based on the states of the one or more power supply sources 10 and the load 20, Alternatively, the plurality of breakers 130 may be controlled.

In this case, the control device 600 is a plurality of power supply panel (100, 200, 300 and 400) of each of the drive power conversion and supply, or the control command for the control of the plurality of circuit breakers (130) A plurality of power supply panels (100, 200, 300 and 400), respectively, or by transmitting to each of the plurality of circuit breakers 130, the plurality of power supply panels (100, 200, 300 and 400) each of the control unit 140, Control according to the control command through 240, 340 and 440, or the opening and closing control of each of the plurality of breakers 130 may be made.

For example, when an abnormality occurs in the entire system power supply G that is supplying power to the plurality of power supply panels 100, 200, 300, and 400, the power supply from the system power supply G is cut off. In order to switch to another source, the plurality of power supply panels (control commands for opening and closing the plurality of circuit breakers 130 and controlling to convert and supply the DC power by receiving power from a power source other than the system power supply G) 100, 200, 300, and 400, respectively, to the control units 140, 240, 340, and 440 included in each of the plurality of breakers 130 to open, and the bypass power source P or the battery power source ( It may be controlled to convert and supply the DC power by receiving power from B).

The control device 600 may control the opening and closing of the plurality of circuit breakers 130 to control the plurality of power supply panels 100, 200, 300, and 400 to receive the DC power.

The control device 600, when an abnormality occurs in any one or more of the plurality of power supply panel (100, 200, 300 and 400), any of the faulty power supply panel and the power supply adjacent to the power supply panel adjacent to the faulty power supply panel connected to By closing the circuit breaker of one converter, it is possible to control the abnormal power supply to receive the DC power from the adjacent power supply.

That is, the control device 600, if any one or more of the plurality of power supply panel (100, 200, 300 and 400) has an abnormality, by closing any one of the circuit breaker 130 connected to the abnormality generating power supply panel In addition, the abnormal power supply panel may be controlled to receive the DC power from a neighboring power supply panel.

For example, if a failure occurs in the converter 110 of the first power panel 100 among the plurality of power panels 100, 200, 300, and 400, the second power panel 200 or the second 3 In order to supply the DC power converted by any one of the converters 210 or 310 of the power panel 300 to the second power converter 120 of the first power panel 100, the first power panel ( 100) and the first circuit breaker 130a of the converter to which the third power panel 300 is connected, or the second circuit breaker of the converter to which the first power panel 100 and the second power panel 200 are connected. Closing (130b), blocking the one or more first power converter 110 of the first power supply panel 100, the second power supply panel 200 or the third power supply panel 300 Controlling the DC power converted by any one of the one or more first power converters 210 or 310 to be supplied to the second power converter 120 of the first power panel 100 By transmitting a control command to each of the first power panel 100 and the second power panel 200 or the third power panel 300, the first breaker 130a or the second breaker 130b, The first breaker 130a or the second breaker 130b is closed, and the one or more first power converters 210 or 310 of the second power panel 200 or the third power panel 300 are closed. Any one may be controlled to supply the DC power to the second power converter 120 of the first power panel 100.

That is, each of the plurality of power supply panels 100, 200, 300, and 400 may supply the DC power to the load 20 of the abnormal power supply panel when an abnormality occurs in a neighboring power supply panel.

Here, the plurality of power supply panels (100, 200, 300 and 400), when supplying the DC power to the abnormal power supply, converts the DC power according to the state of the one or more power supply source (10) One of the one or more first power converters 110, 210, 310, and 410 may be selected to transmit the DC power to the abnormality generating power supply panel with the selected converter.

That is, the plurality of power supply panels (100, 200, 300 and 400), when supplying the DC power to the abnormal power supply, the one or more converters selected according to the state of the one or more power supply 10 The DC power may be supplied to the abnormal power supply panel.

For example, when the second power panel 200 supplies the DC power to the first power panel 100, the one of the one or more power sources 10 that is supplying power to the second power panel 200 If the rating of the grid power (G) and the bypass power (P) is lower than the reference rating, the second converter corresponding to the battery power (B) to supply the DC power through the battery power (B) By selecting (210 # 2), the power supplied from the battery power (B) is converted to the DC power by the selected second converter 210 # 2 to be transferred to the first power panel 100. Can.

The control device 600, when an abnormality in any one or more of the plurality of power supply panel (100, 200, 300 and 400), the circuit breaker 130 of the converter connected to a plurality of power supply panel adjacent to the power supply generating the fault By closing all of them, it is possible to control the abnormal power supply panel to receive the DC power from all of the adjacent power supply panels.

That is, the control device 600, when any one or more of the plurality of power supply panel (100, 200, 300 and 400) has an abnormality, all of the breaker 130 connected to the abnormality power supply panel is closed, the The abnormal power supply panel may be controlled to receive the DC power from all of the neighboring power supply panels.

For example, when an abnormality occurs in the first power panel 100, the second circuit breaker 130b and the third circuit breaker that disconnects the connection between the first power panel 100 and the second power panel 200 adjacent to the first power panel 100 The first circuit breaker 130a that interrupts connection with the power panel 300 is closed, and the first power panel 100 is adjacent to the second power panel 200 and the third power panel 300. The DC power may be supplied.

The control device 600 closes a plurality of circuit breakers 130 that interrupt the connection between each of the abnormal power supply panels and the power supply unit closest to each of the abnormal power supply panels, so that each of the abnormal power supply panels is closed. It can be controlled to receive the DC power from each of the adjacent power supply panel.

That is, when the abnormality generating power panel is plural, the control device 600 controls each of the plurality of adjacent power supply panels adjacent to each abnormality power supply panel to supply the DC power to each of the abnormality power supply panels. Can be.

For example, when a failure occurs in the first power panel 100 and the second power panel 200, the first that interrupts the connection between the first power panel 100 and the third power panel 300 The first power supply panel 100 is closed by closing the circuit breaker 130a and the fourth circuit breaker 130d that interrupts the connection between the second power supply panel 200 and the fourth power supply panel 400. The DC power may be supplied from the power panel 300, and the second power panel 200 may be supplied with the DC power from the fourth power panel 400.

As described above, when an abnormality occurs in any one or more of the plurality of power supply panels 100, 200, 300, and 400, the abnormality occurs by closing the circuit breaker 130 that interrupts the connection between the power generation unit and a neighboring power supply panel, thereby causing the abnormality. By controlling the power supply panel to receive the DC power from the neighboring power supply panel, each of the plurality of power supply panels 100, 200, 300 and 400 may perform a UPS function.

Accordingly, the system 1000, even if an unexpected abnormality occurs in the at least one power supply source 10, the plurality of power supply panels (100, 200, 300 and 400) and the load 20, the load (20) ), The supply of the driving power to the can be continuously maintained, the operation of the load 20 can be maintained without interruption, and an appropriate and active power supply response to an abnormality can be made, and the type of the abnormality And regardless of the degree of operation of the load 20 and the control of the system 1000 can be made stably.

An operation example of the system 1000 as described above may be made as illustrated in FIGS. 4 to 7.

4 to 7 is an example of operation when the system 1000 includes four power panels 100, 200, 300 and 400, and the system 1000 is the plurality of The power supply panel (100, 200, 300 and 400) may include less than five, or five or more.

A preferred embodiment of the system 1000 may include four power panels 100, 200, 300, and 400, as shown in FIGS. 4 to 7, and hereinafter, the plurality of power panels 100, 200 , 300 and 400) will be described as an example in the case of four as shown in FIGS. 4 to 7.

4 is a case where each of the plurality of power supply panels 100, 200, 300 and 400 is supplied with power from the system power supply G among the one or more power supply sources 10, in this case, the bypass power supply P ) And the power supply from the battery power (B) is cut off, and the power is supplied through the system power (G) to be converted to the DC power and the driving power in order to be supplied to each of the loads (20). have.

An example of the operation as shown in FIG. 4 is a general operation in which power is supplied from the system power G to operate, and the normal operation of the system 1000 may be performed as described above.

5 is a case where each of the plurality of power supply panels (100, 200, 300 and 400) is supplied with power from the bypass power source (P) among the one or more power supply sources (10), to the system power supply (G) This may be the case when an abnormality occurs. In this case, power supply from the system power supply G and the battery power supply B is cut off, and the DC power supply is supplied with power through the bypass power supply P. And converting the driving power in order to supply the load 20 to each.

An example of operation as shown in FIG. 5 is a case of a special operation in which power is supplied from the bypass power source P to operate, and the special operation of the system 1000 may be performed as described above.

6 is a case where each of the plurality of power supply panels (100, 200, 300 and 400) is supplied with power from the battery power (B) among the one or more power supply sources (10), the system power (G) and the This may be the case when an abnormality occurs in the bypass power source P, in which case the power supply from the system power source G and the bypass power source P is cut off, and the battery power source B Power may be supplied to each of the loads 20 by converting the DC power and the driving power.

An operation example as illustrated in FIG. 6 is a case of a power failure operation in which power is supplied from the battery power B to operate, and the power failure operation of the system 1000 may be performed as described above.

7 is a case where each of the plurality of power supply panels (100, 200, 300 and 400) is supplied with power from the emergency power supply (A) among the one or more power supply sources (10), the system power supply (G), the This may be the case where an abnormality occurs in the bypass power source P and the battery power source B, and in this case, the system power source G, the bypass power source P, and the battery power source B The power supply is cut off, and the emergency power source A may directly supply the driving power to each of the loads 20.

The operation example as illustrated in FIG. 7 is an emergency operation in which power is supplied from the emergency power supply A to operate, and the emergency operation of the system 1000 may be performed as described above.

The system 1000 may operate by receiving power from the same power supply source, respectively, or the plurality of power supply panels 100, 200, 300, and 400) Each may be selectively supplied with power from any one of the one or more power sources 10 to operate.

For example, the first and second power panels 100 and 200 are operated by receiving power from the system power G, and the third and fourth power panels 300 and 400 are the bypass power P ) Can be operated by being supplied with power.

In addition, each of the plurality of power supply panels 100, 200, 300, and 400 may be operated by receiving power from one or more power supply sources 10.

For example, when an abnormality occurs in the first power panel 100 to supply the DC power from the second power panel 200 to the first power panel 100, the second power panel 200 The power supplied from the system power (G) is converted to the DC power through the 2-1 converter 210 # 1 and transmitted to each of the second power converter 220, and the bypass power ( The power is further supplied from P) to be converted into the DC power through a 2-3 conversion device 210 # 3, and the DC power converted by the 2-3 conversion device 210 # 3 is converted into the first. It may be transmitted to each of the second power conversion device 120 of the power supply panel 100.

In the case of such an example, the first power supply panel 100 and the second power supply are closed by closing the second circuit breaker 130b to which the first power supply panel 100 and the second power supply panel 200 are connected. The half 200 may be connected to each other to supply the DC power from the second power supply panel 200 to the first power supply panel 100.

As such, each of the plurality of power supply panels 100, 200, 300, and 400 is supplied with power from one or more power supply sources 10 to operate, thereby supplying power between the plurality of power supply panels 100, 200, 300, and 400 That is, the UPS function may be performed between the plurality of power panels 100, 200, 300, and 400.

An embodiment of the power supply system according to the present invention as described above may be applied to a power module that supplies / uses DC power, a power supply system, and a method of operating a power supply system. In particular, it can be usefully applied to a DC UPS module and a power supply system having the same, and can also be applied to and implemented in a motor control panel, a motor control system, a motor operation system, etc. that control a plurality of motor loads.

Although specific embodiments of the present invention have been described so far, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the claims to be described later, but also by the claims and equivalents.

As described above, although the present invention has been described by limited embodiments and drawings, the present invention is not limited to the above embodiments, and various modifications and modifications can be made from these descriptions by those skilled in the art to which the present invention pertains. Deformation is possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalents or equivalent modifications thereof will be said to fall within the scope of the spirit of the present invention.

10: power supply 20: load
100 (200, 300 and 400): Power supply (power panel)
110 (210, 310 and 410): first power converter (converter)
120 (220, 320 and 420): second power converter (inverter)
130a to 130d: first to fourth circuit breakers
140 (240, 340 and 440): control
600: control unit 1000: power supply system

Claims (16)

A plurality of power supply panels that convert power supplied from one or more power sources into DC power, convert the DC power into drive power of a load, and supply the power to the load; And
It includes a plurality of circuit breakers that are disposed on one side of each of the plurality of power supply panels, and connect or disconnect the power terminals of the two power supply units between one side of each of the plurality of power supply panels and the other side of the power supply panel adjacent to the one side.
The plurality of circuit breakers,
When the power supply is stopped in one or more of the plurality of power supply panel,
One or more of the circuit breakers connected to one side and the other side of the power supply panel where the power supply is interrupted is closed, so that one or more of the power supply terminals of the power supply panel connected to both sides of the interrupted power supply panel is connected to the power supply terminal of the interrupted power supply panel. Power supply system. According to claim 1,
The one or more power sources,
A first AC power source and a second AC power source for supplying AC power; And
Includes; when the DC power is stored, when the power supply of the first AC power and the second AC power is stopped, the stored power is supplied to the plurality of power panels while the power supply is switched and restored. Power supply system characterized in that. According to claim 2,
The battery power,
After the power supply is interrupted, the power supply system is characterized in that the stored power is supplied to the plurality of power supply panels in a random manner until the power supply is switched and restored. According to claim 2,
The one or more power sources,
When the supply of the first AC power, the second AC power, and the battery power is stopped,
Power supply system characterized in that it further comprises; an emergency power supply for supplying the emergency power generation to the load. According to claim 2,
Each of the plurality of power supply panel,
At least one first power converter converting power supplied from the one or more power sources into the DC power; And
And a second power converter that converts the DC power supplied from the one or more first power converters to the driving power and supplies the load to the load. The method of claim 5,
The plurality of power supply panels,
Power supply system, characterized in that for supplying the DC power to the second power converter to any one of the one or more first power converter according to the state of the one or more power supply. The method of claim 6,
The plurality of power supply panels,
When the power supply of the converter that supplies the DC power to the second power converter is interrupted,
Power supply system, characterized in that for supplying the DC power to the second power converter through a converter other than the converter. The method of claim 7,
At least one first power conversion device,
A power supply system, characterized in that, while the converter is switched to the other converter, the DC power is supplied to the second power converter through a converter that receives power from the battery power. According to claim 2,
Each of the plurality of power supply panel,
Power supply system, characterized in that the power supply terminal is connected to any two of the circuit breakers. The method of claim 9,
The plurality of power supply panels,
A power supply system, characterized in that the plurality of circuit breakers are respectively disposed between a power supply terminal of any one power supply panel and a power supply terminal of two neighboring power supply panels. According to claim 2,
Each of the plurality of power supply panel,
A first power terminal corresponding to one end of the power terminal and a second power terminal corresponding to the other end of the power terminal,
The plurality of circuit breakers,
A power supply system which is disposed between each of the two power panels, and connects or disconnects a first power terminal of one power panel and a second power terminal of the other power panel. According to claim 2,
The plurality of circuit breakers,
Power supply system, characterized in that provided in a number corresponding to the plurality of power supply panel. According to claim 2,
The plurality of circuit breakers,
A power supply system, characterized in that when the DC power is connected between the plurality of power panels, it is closed, and when the DC power is intermittent between the plurality of power panels, it is opened. According to claim 2,
The plurality of circuit breakers,
When the power supply of one or more of the plurality of power supply panel is stopped,
The power supply where the power supply is interrupted and a circuit breaker disposed between the interrupted power supply panel and an adjacent power supply panel are closed to connect the interrupted power supply panel and the adjacent power supply panel, and from the adjacent power supply panel to the interrupted power supply panel. Power supply system characterized in that the DC power supply. The method of claim 14,
The suspended power panel,
The power supply system, characterized in that the power supply is stopped, the DC power is supplied from the converter connected to the battery power until the DC power supplied from the adjacent power supply panel is supplied. The method according to any one of claims 1 to 15,
And a control device for monitoring at least one of the plurality of power supply panels and the plurality of circuit breakers and controlling at least one of the plurality of power supply panels and the plurality of circuit breakers according to a monitoring result. Power supply system.

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