KR20200030825A - 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, a supply board, a bus line, 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, it is intended to provide a power supply system in which power is supplied and supplied between a plurality of power supply units provided in the system, so that each of the plurality of power supply units can perform a UPS function with 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 that interrupts the connection to a power bus to which a plurality of power supplies are connected, to open and close the circuit breaker according to various situations occurring on the system The solution is to control the power supply.

That is, the power supply system according to the present invention includes a circuit breaker corresponding to a plurality of power supply units, and controls the circuit breaker to receive and supply power through a power bus, thereby performing a UPS function between the plurality of power supply units It is characterized by doing.

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 converted DC power into driving power of a load. , A plurality of power supply panels for supplying the load, converts the power supplied from one or more power supply sources to DC power, and when connected to the plurality of power supply panels through a bus line, supplies the converted DC power to the plurality of power supply panels The supply line, the power terminals of each of the plurality of power supply panels, and the power supply terminals of the supply panel are connected to each of the plurality of power supply panels and the bus line and the power supply terminal through which the DC power converted by the supply panel is conducted. It is disposed between the bus lines, and includes a plurality of circuit breakers for connecting or disconnecting each of the power terminals and the bus lines. And, the plurality of circuit breakers, by varying the opening and closing according to the power supply state of one or more of the plurality of power panels, to connect or interrupt the DC power between the power terminal and the bus line, but among the plurality of power panels When one or more power supply is interrupted, the DC power may be conducted through the bus line to a power supply panel other than the power supply unit where the power supply is interrupted and one or more of the supply panels to the power supply unit where the power supply is stopped. One or more of the other power supply panels and the supply panel and a circuit breaker connected to the power supply supply unit where the power supply is interrupted are closed to connect one or more of the other power supply panels and the supply panel and the interrupted power supply unit to the bus line. .

In one embodiment of the power system, the at least one power source stores first AC power and second AC power and DC power for supplying AC power, thereby supplying power to the first AC power and the second AC power. When 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 system, after the power supply is stopped, the stored power may be supplied to the plurality of power panels in an uninterrupted manner until the power supply is switched and restored.

In one embodiment of the power system, the at least one power supply source is an emergency power source that supplies emergency power to the load when the first AC power source, the second AC power source, and the power supply to the battery power source are interrupted. It may further include.

In one embodiment of the power system, each of the plurality of power supply panels may include 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. And a second power conversion device that converts the supplied DC power to the driving power and supplies the load to the load.

In one embodiment of the power 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. .

In one embodiment of the power 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 be controlled through the converter other than the converter. 2 The DC power can be supplied to the power converter.

In one embodiment of the power system, the one or more first power converters in the mall, while the converter is switched to the other converter, the second power converter through a converter that receives power from the battery power To the DC power.

In one embodiment of the power system, a power supply for supplying power to the supply panel may include at least the battery power.

In one embodiment of the power system, the supply panel further receives power from the first AC power and the second AC power, and converts power supplied from the one or more power sources into the DC power. The above first power conversion device may be included.

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

In one embodiment of the power system, the supply panel is composed of a plurality, but a supply target for supplying the DC power among the plurality of power supply panels is defined for each of the plurality of supply panels, and the specified supply target Can supply the DC power.

In one embodiment of the power system, the supply panel may be provided at a position where each of the plurality of power panels is spaced within a predetermined distance.

In one embodiment of the power system, the plurality of circuit breakers are closed when the DC power is connected between the power terminal and the bus line, and when the DC power is interrupted between the power terminal and the bus line Can be dog.

In one embodiment of the power system, when the power supply of one or more of the plurality of power panels is interrupted, the circuit breakers connected to the power supply panel where the power supply is interrupted and the circuit breakers connected to the supply panel are closed, The interrupted power supply panel and the supply panel may be connected to the bus line, so that the DC power is supplied from the supply panel to the interrupted power supply panel.

In one embodiment of the power system, the interrupted power supply panel is supplied with the DC power from a converter connected to the battery power supply until power supply is stopped and the DC power supply conducted from the supply panel is supplied. Can be.

In one embodiment of the power system, the plurality of circuit breakers, a circuit breaker connected to one or more of the other power panels and a circuit breaker connected to the supply panel are closed, so that one or more of the other power panels are supplied and supplied through the bus line. The DC power may be supplied from the half to the stopped power supply.

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

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 one or more power sources into DC power, and drives the DC power to load A plurality of power supply panels for converting the driving power to the load, supplying the driving power to the load, and converting the power supplied from each of the one or more power supply sources to the DC power supply according to the state of the plurality of power supply, to convert the plurality of power supply The supply panel for supplying the DC power to the power supply panel, the plurality of power supply panels, and the power terminals to which the DC power is input and output in each of the supply panels are commonly connected, and the converted from the plurality of power supply panels and the supply panel It is provided in a bus line to which DC power is transmitted, and to a converter to which each of the power terminals and the bus line are connected, A plurality of circuit breakers for controlling the connection between the number of power supply panels and each of the supply panels and the bus line, and opening and closing of the plurality of circuit breakers according to states of each of the plurality of power supply panels, thereby controlling the It includes a control device for controlling the supply of DC power.

In one embodiment of the power supply system, the plurality of power supply panels includes one or more first power converters that convert power supplied from each of the one or more power supply sources into DC power, and drive the DC power to drive a load. A second power converter that converts to power and supplies the driving power to the load, and a power terminal and a power terminal commonly connected to outputs of the one or more first power converters and input terminals of the second power converter. It is provided between the bus line, to control the opening and closing of the circuit breaker according to the state of the DC power or the driving power supply and the circuit breaker to interrupt the connection of the power terminal and the bus line, the DC power through the bus line It may include a control unit for controlling the water supply.

In one embodiment of the power supply system, the control unit selects any one of the one or more first power converters according to the state of the one or more power sources, and the selected converter is connected to each of the second power converters. It can be controlled to deliver the DC power.

In one embodiment of the power supply system, the control unit converts the DC power supply to the second power conversion device when an abnormality occurs in any one or more of a power supply corresponding to the conversion device and the conversion device. A converter other than the device may be controlled to deliver the DC power to the second power converter.

In one embodiment of the power supply system, the control unit closes the circuit breaker when two or more of the one or more power sources occur, closing the circuit breaker, and from the other power supply connected to the bus line through the bus line. It can be controlled to receive DC power.

In one embodiment of the power supply system, the control unit closes the circuit breaker when an abnormality occurs in another power supply connected to the bus line, and supplies DC power to the other power supply through the bus line. Can be controlled.

In one embodiment of the power supply system, the one or more power sources may include a first AC power supply to supply AC power, and a battery power to store second AC power and DC power.

In one embodiment of the power supply system, the one or more power sources supply emergency power to supply emergency power to the load when an abnormality occurs in the first AC power, the second AC power, and the battery power. It may further include.

In one embodiment of the power supply system, the circuit breaker is opened during normal operation and closed during operation to interrupt the connection between the converter and the bus line.

In one embodiment of the power supply system, the plurality of power supply panels select one of the one or more first power converters for converting the DC power according to the state of the one or more power sources, and convert the selected power to the selected converter. The DC power may be delivered to each of the second power converters that convert the driving power.

In one embodiment of the power supply system, the plurality of power supply panels may include at least one of a power supply corresponding to the converter and a converter that is transmitting the DC power to a second power converter that converts the driving power. When an abnormality occurs, the DC power may be delivered to the second power converter through a converter other than the converter.

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, closes the power supply panel and the circuit breaker of the abnormality occurs, the abnormality power supply panel It can be controlled to receive the DC power from the supply panel through a bus line.

In one embodiment of the power supply system, the supply panel, when supplying the DC power to the abnormal power generation panel, one or more first power conversion to convert the DC power according to the state of the one or more power supply By selecting any one of the devices, the DC power can be transferred to the bus line to the selected converter.

In one embodiment of the power supply system, the control device, when an abnormality occurs in the supply panel, closes the circuit breaker of the power supply panel closest to the abnormality generating power panel, so that the abnormality power supply panel is connected to the bus line through the bus line. It can be controlled to receive the DC power from the adjacent power supply panel.

In one embodiment of the power supply system, the control device may include a plurality of power supply panels that are closest to the supply panel and the abnormality generation power supply panel according to an abnormal state of each of the abnormality generation power supply panels when the abnormality generation power supply panel is plural. By closing one or more circuit breakers, each of the abnormal power supply panels may be controlled to receive the DC power from at least one of the supply panel and the adjacent power supply panel through the bus line.

In one embodiment of the power supply system, the supply panel is composed of a plurality, but a supply target for supplying the DC power among the plurality of power panels is determined for each of the plurality of supply panels, and the supplied supply is determined. The DC power can be supplied to a target.

In one embodiment of the power supply system, the supply panel may be provided at a position where each of the plurality of power supply panels is spaced within a predetermined distance.

The power supply system according to the present invention as described above may be implemented by being applied to a power supply device that supplies / uses DC power, a power supply system, and an operating method of the 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.

Power supply system according to the present invention, by controlling the breaker of each of a plurality of power supply connected to the power bus to control the supply of power through the power bus, it is possible to perform the UPS function between the plurality of power supplies It works.

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, by controlling each circuit breaker of a plurality of power supply devices connected to the power bus according to the occurrence situation to control the water supply through the power bus, efficient operation can be made with minimal means It has the effect of being able to.

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, 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 supplies.

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 the power supplied from one or more power sources 10 into DC power, and loads the converted DC power 20 as shown in FIG. 1. ), Converts the power supplied from the plurality of power supply panels (100, 200, 300 and 400) and one or more power supply sources (10) to the DC power supply, and converts it into DC power, thereby converting it into a driving power source. When connected to the plurality of power supply panels (1, 100, 200, 300 and 400) through (1), the supply panel 500 for supplying the converted DC power to the plurality of power supply panels (100, 200, 300 and 400) The power terminals of each of the plurality of power supply panels 100, 200, 300, and 400 and the power supply terminals of the supply panel 500 are connected, so that the plurality of power supply panels 100, 200, 300, and 400 are supplied. Between the bus line (1) and each of the power supply terminal and the bus line (1) through which the DC power converted in (500) is conducted. It is disposed, and a plurality of breakers (130, 230, 330, 430 and 530) to connect or disconnect the power supply terminal and each of the bus line (1).

In the system 1000, the plurality of circuit breakers 130, 230, 330, 430, and 530 may be opened and closed according to one or more power supply states of the plurality of power panels 100, 200, 300, and 400, The DC power is connected or disconnected between the power terminal and the bus line 1.

In the system 1000, the plurality of circuit breakers 130, 230, 330, 430, and 530, when one or more of the plurality of power supply panels 100, 200, 300, and 400 are stopped, the bus line The DC power supply is conducted between the plurality of power supply panels 100, 200, 300 and 400 through (1), or between the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500. Two or more of the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500 are connected to the bus line 1 so that DC power is conducted.

That is, when one or more of the plurality of power breakers (130, 230, 330, 430, and 530) is powered off, the power supply is interrupted. Two or more circuit breakers may be closed, including circuit breakers connected to the power supply panel.

In the system 1000, the plurality of circuit breakers 130, 230, 330, 430, and 530 include a power supply panel and the supply panel 500 other than the power supply panel where the power supply is interrupted through the bus line 1 One or more of the other power supply panel and the supply panel 500 and a circuit breaker connected to the power supply supply unit where the power supply is interrupted are closed so that the DC power is conducted to the power supply panel where the power supply is interrupted. One or more of the other power supply panel and the supply panel 500 and the interrupted power supply panel are connected to the bus line 1.

Accordingly, when the power supply is interrupted, the plurality of power supply panels 100, 200, 300, and 400 are connected to one or more of the other power supply panels and the supply panel 500 through the bus line 1. Connected, the DC power may be supplied from at least one of the other power supply panel and the supply panel 500.

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 plurality of power supply panels (100, 200, 300 and 400), may be made of a configuration of a power supply as shown in Figures 2 and 3, the power supply system 1000, Figure 2 and A plurality of power supply panels 100 in the form of a power supply device 100 as illustrated in FIG. 3 may be included to include the plurality of power supply panels 100, 200, 300 and 400.

The plurality of power supply panels 100, 200, 300 and 400 may be modules including a plurality of power control devices.

The plurality of power supply panels 100, 200, 300 and 400 may be power supplies 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 plurality of power supply panels (100, 200, 300 and 400), may be made of a configuration of a power supply as shown in Figures 2 and 3, the power supply system 1000, Figure 2 and A plurality of power supply panels 100 in the form of a power supply device 100 as illustrated in FIG. 3 may be included to include the plurality of power supply panels 100, 200, 300 and 400.

The plurality of power supply panels 100, 200, 300 and 400 may be modules including a plurality of power control devices.

The plurality of power supply panels 100, 200, 300 and 400 may be power supplies in which the plurality of power control devices are packaged.

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

The plurality of power supply panels (100, 200, 300 and 400) 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 plurality of power supply panels 100, 200, 300 and 400 may also be packaged power supply panels configured in any one space.

The plurality of power supply panels 100, 200, 300, and 400 may be packaged with the plurality of power control devices to supply power to a load.

The plurality of power supply panels (100, 200, 300 and 400), as shown in Figure 2, one or more first power conversion for converting the power supplied from each of the one or more power supply 10 to the DC power supply And a second power converter 120 for converting the device 110 and the DC power into the driving power for driving the load 20 and supplying the driving power to the load 20. Can.

Thus, the plurality of power supply panels (100, 200, 300 and 400), the one or more first power converter (110, 210, 310 and 410) and the second power converter (120, 220, 320 and 420) Including, it converts the power supplied from the one or more power sources 10 to the driving power, and supplies it to the load 20.

The plurality of power supply panels (100, 200, 300 and 400) including the one or more first power converters (110, 210, 310 and 410) and the second power converters (120, 220, 320 and 420) The specific configuration of may be as shown in FIGS. 2 and 3.

The one or more power supply sources 10 for supplying power to the plurality of power supply panels 100, 200, 300, and 400 are externally connected to the one or more first power converters 110, 210, 310, and 410 As such, power may be supplied to each of the one or more first power conversion devices 110, 210, 310, and 410.

Each of the one or more power sources 10 is connected to each of the one or more first power converters 110, 210, 310, and 410, and the one or more first power converters 110, 210, 310, and 410 DC or AC power can be supplied to each.

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 plurality of power supply panels 100, 200, 300, and 400 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. 1, three power supply sources 10, that is, the system power supply G, 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.

That is, the one or more first power converters 110, 210, 310 and 410, the output terminal is commonly connected to the power terminal, the one or more first power converters 110, 210, 310 and 410 The DC power converted in may flow.

Accordingly, in the power terminal, the output terminals of the one or more first power converters 110, 210, 310, and 410 are commonly connected to the one or more first power converters 110, 210, 310, and 410. The DC power output from the may be a converter.

The power supply terminal may be connected to the input terminals of the bus line 1 and the second power conversion devices 120, 220, 320, and 420.

The power supply terminal is connected to the bus line 1 and the input terminals of the second power converters 120, 220, 320 and 420, and transmits the DC power to the bus line 1 through the power supply terminal. Or, it may be transmitted to the second power conversion device (120, 220, 320 and 420).

As described above, the power terminals to which the output terminals of the one or more first power converters 110, 210, 310 and 410 are commonly connected are the bus line 1 and the second power converters 120, 220, 320 and 420. By being connected to the input terminal, the DC power converted and output by the one or more first power converters 110, 210, 310 and 410 through the power terminal may be delivered.

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 converters 120, 220, 320 and 420.

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 converters 120, 220, 320, and 420, three or more second power converters 120 # 1 to # 3, 220 # 1 to # 3, 320 # corresponding to the load 20 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 the power supply terminal 500 through the bus line 1.

In the plurality of power supply panels 100, 200, 300, and 400, the plurality of breakers 130, 230, 330, and 430 may be disposed between the power supply terminal and the bus line 1, respectively.

The power terminals of each of the plurality of power supply panels 100, 200, 300 and 400 are connected to the plurality of circuit breakers 130, 230, 330 and 430, and the plurality of circuit breakers 130, 230, 330 and 430 ) Can be connected to the supply panel 500 connected to the bus line (1).

The supply panel 500 may be an auxiliary power supply panel that supplies the DC power to the plurality of power supply panels 100, 200, 300, and 400.

The supply panel 500 may be an emergency power supply panel connected to the bus line 1 to supply the DC power to the plurality of power supply panels 100, 200, 300 and 400.

The supply panel 500, like the plurality of power supply panels 100, 200, 300, and 400, may receive power from any one or more of the one or more power supply sources 10 and convert it to the DC power supply. .

In the supply panel 500, the power terminals are commonly connected and received from any one or more of the one or more power supply sources 10 according to the states of the plurality of power supply panels 100, 200, 300 and 400. It may be a power supply panel for power supply for supplying the DC power to the plurality of power supply panels 100, 200, 300 and 400 through the bus line 1 by converting power to the DC power supply.

That is, the supply panel 500 may supply the DC power to the plurality of power supply panels 100, 200, 300 and 400 through the bus line 1.

The power source 10 for supplying power to the supply panel 500 may include at least the battery power 10 # 2.

That is, the supply panel 500 may be supplied with power from at least the battery power 10 # 2.

The supply panel 500 may be further supplied with power from the first AC power supply 10 # 1 and the second AC power supply 10 # 3.

That is, the supply panel 500 is the system power supply (G), the bypass power supply (P) and the battery power supply (B) for supplying power to the plurality of power supply panels (100, 200, 300 and 400) The power may be supplied from one or more of the plurality of power panels 100, 200, 300, and 400 to convert the DC power.

For example, the supply panel 500 may receive power from the battery power B and convert it to the DC power.

The supply panel 500 converts power supplied from each of the first AC power supply 10 # 1, the second AC power supply 10 # 3, and the battery power supply 10 # 2 to the DC power supply. One or more first power conversion devices 510 may be included.

That is, as shown in FIG. 1, the supply panel 500 receives power from the system power supply G, the bypass power supply P, and the battery power supply B, so that the one or more first The DC power may be converted through the power converter 510.

Here, in the one or more first power converters 510 included in the supply panel 500, the output terminal to which the DC power is output is connected to one of the power terminals, so that the power terminal is connected to the bus line 1 ).

The supply panel 500 may transfer the DC power output from the one or more first power converters 510 to the bus line 1.

The supply panel 500 may convert the DC power to the driving power, and supply the driving power to a specific load connected to the supply panel 500.

The supply panel 500 may be connected to the bus line 1 through a circuit breaker 530 having the power supply terminal connected to the supply panel.

The supply panel 500 is the one of the one or more first power conversion devices 510 according to the state of the one or more power supply sources 10 to the plurality of power supply panels (100, 200, 300 and 400) DC power can be supplied.

Each of the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500 may be supplied with power from any one of the one or more power supply sources 10 to be converted into the DC power supply.

That is, each of the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500 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) and the supply panel 500 receives power from any one of the one or more power supply sources 10 according to a predetermined supply criterion to the DC power supply. Can be converted.

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

Each of the plurality of power supply panels 100, 200, 300, and 400 includes the one or more first power converters 110, 210, and 310 included in each, and the second power converters 120, 220, and 320. You can control and monitor the operation.

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

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

Each of the plurality of power supply panels 100, 200, 300, and 400 includes the one or more first power converters 110, 210, and 310 included in each, and the second power converters 120, 220, and 320. According to the result of controlling and monitoring the operation of the first and third circuit breakers (130, 230, 330, 430 and 530) can control the opening and closing of each.

Also, the supply panel 500 selects any one of the one or more first power converters 410 according to the state of the one or more power sources 10, and the bus line 1 is selected as the selected converter. To the DC power.

Each of the plurality of power supply panels 100, 200, 300, and 400 includes the one or more first power converters 110, 210, and 310 included in each, and the second power converters 120, 220, and 320. By controlling and monitoring the operation of, it is possible to detect the states of the DC power supply and the driving power supply.

The plurality of power supply panels (100, 200, 300 and 400), one or more of the first power converter (120, 220 and 320) of the converter that is transmitting the DC power and a power source corresponding to the converter When an abnormality occurs in one or more, the DC power may be transmitted to the second power converters 120, 220, and 320 to a changer 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, and 320 through the converted converter.

The plurality of power supply panels (100, 200, 300 and 400), one or more of the power supply corresponding to the converter and the converter that is transmitting the DC power to the second power converter (120, 220 and 320) When an abnormality occurs, a power supply source and a conversion device that is supplying power may be switched so that a conversion device other than the conversion device delivers the DC power to the second power conversion devices 120, 220, and 320.

The supply panel 500 controls the operation of the one or more first power converters 510 and monitors the DC power to the plurality of power supply panels 100, 200, 300 and 400 according to the result of controlling and monitoring the operation. Supply can be controlled.

The supply panel 500 may control and monitor the operation of the one or more first power conversion devices 510 to detect the state of the DC power.

The supply panel 500, when an abnormality occurs in one or more of the power supply corresponding to the converter and the converter that is transmitting the DC power to the plurality of power supply panels (100, 200, 300 and 400), the The DC power may be delivered to the plurality of power supply panels 100, 200, 300, and 400 by a converter other than the converter.

In other words, when an abnormality occurs in one or more of the converter that is transmitting the DC power and the power supply corresponding to the converter, the supply panel 500 switches to a converter other than the converter and converts the converted The DC power may be delivered to the plurality of power supply panels 100, 200, 300, and 400 by a device.

The supply panel 500, when an error occurs in any one or more of the power supply corresponding to the converter and the converter that is transmitting the DC power to the plurality of power supply panels (100, 200, 300 and 400), A power supply source and a conversion device that is supplying power may be switched so that other conversion devices other than the conversion device deliver the DC power to the plurality of power supply panels 100, 200, 300, and 400.

As described above, the supply panel 500 that supplies the DC power to the plurality of power supply panels 100, 200, 300, and 400 in the system 1000 may be formed in plural.

In this way, in the supply panel 500 composed of a plurality, a supply target for supplying the DC power among the plurality of power supply panels 100, 200, 300 and 400 is determined for each of the plurality of supply panels 500, The DC power may be supplied to the predetermined supply target.

For example, in the first supply panel, the first and second power supply panels 100 and 200 are designated as the supply target, and in the second supply panel, the third and fourth power supply panels 300 and 400 are designated as the supply target. When the abnormality occurs in the first and second power panels 100 and 200, the first supply panel supplies the DC power to the first and second power panels 100 and 200, and the first When an abnormality occurs in the third and fourth power panels 300 and 400, the second supply panel may supply the DC power to the third and fourth power panels 300 and 400.

In this case, the supply targets may be switched according to the abnormal states of the plurality of power supply panels 100, 200, 300 and 400 in the first and second supply panels.

The supply panel 500 may be provided at positions where each of the plurality of power supply panels 100, 200, 300, and 400 is spaced within a predetermined distance.

The supply panel 500 may be provided at a position where the distance between each of the plurality of power supply panels 100, 200, 300, and 400 is minimized.

For example, it may be provided at a position corresponding to the center in the arrangement structure of the plurality of power supply panels (100, 200, 300 and 400).

That is, the supply panel 500 may be located in the central portion in a structure in which the plurality of power supply panels 100, 200, 300 and 400 are arranged.

As described above, when the supply panel 500 is provided at a position corresponding to the center in the arrangement structure of the plurality of power supply panels 100, 200, 300 and 400, the plurality of power supply panels 100, 200, 300 and 400 ) The supply of the DC power to each can be made easily, and losses occurring in the process of supplying the DC power can be reduced.

The plurality of circuit breakers 130, 230, 330, 430, and 530 include the power terminals of each of the plurality of power supply panels 100, 200, 300, and 400, and the power supply terminals of the supply panel 500 and the bus line 1 ).

The plurality of circuit breakers 130, 230, 330, 430, and 530 may be DC circuit breakers that cut off DC power.

The plurality of breakers (130, 230, 330, 430 and 530), the output terminal of each of the one or more first power converter (110, 210 and 310) connected to the power supply terminal and the power supply terminal of the supply panel 500 and the It can be arranged between the bus lines (1).

That is, the plurality of circuit breakers (130, 230, 330, 430 and 530), the power terminal of the plurality of power supply panels (100, 200, 300 and 400) and the power supply terminal of the supply panel 500 is the bus It is provided in the converter connected to the line (1), it is possible to interrupt the connection of the plurality of power supply panel (100, 200, 300 and 400) and the supply panel 500 and the bus line (1).

According to this, the plurality of power supply panels (100, 200, 300 and 400) is connected to the supply panel 500 through the power supply terminal, and the plurality of circuit breakers (130, 230, 330, 430 and 530) The connection with the supply panel 500 may be interrupted by opening and closing.

The bus line 1 to which the plurality of power supply panels 100, 200, 300, and 400 are connected to the supply panel 500 may be a DC converter through which DC power flows.

The bus line 1 is a converter to which the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500 are connected, and the plurality of power supply panels 100, 200, 300 and 400, and It may be a converter to which the DC power is transferred between the supply panels 500.

The bus line 1 may have a rating of a size of DC power supplied from at least one converter to a size of DC power supplied from two converters.

That is, the rating of the bus line 1 may be a rating at which DC power supplied from at least two converters can be delivered.

The bus line 1 may be preferably rated at a size capable of transferring DC power between all power supply panels connected to the bus line 1.

The DC power may flow in the bus line 1 according to opening and closing of the plurality of breakers 130, 230, 330, 430, and 530.

The plurality of circuit breakers 130, 230, 330, 430, and 530 provided between the power terminal and the bus line 1 to interrupt the connection between the power terminal and the bus line 1 includes a DC circuit breaker (MCCB).

The plurality of circuit breakers (130, 230, 330, 430 and 530), the plurality of power supply panel (100, 200, 300 and 400) and the supply panel 500 of one or more of the power supply status of the opening and closing by different , The DC power may be connected or interrupted between the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500.

The plurality of breakers (130, 230, 330, 430 and 530), the plurality of power supply panel (100, 200, 300 and 400) and the DC power of the supply panel 500, the driving power supply, the one or more According to at least one of the first power converters 110, 210, 310 and 410 and the load 20, opening and closing differently, the plurality of power supply panels 100, 200, 300 and 400 and the supply panel ( 500) may be connected or disconnected from the DC power.

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 one or more first power converters (110, 210, 310, 410 and 510) It may be at least one of when the power supply state of the case is changed and 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, 410 and 510 has a failure / accident, the power supply state changes. Alternatively, the driving power supplied to the load 20 may be reduced and the driving state of the load 20 may change.

The plurality of circuit breakers 130, 230, 330, 430, and 530 are opened at normal times and closed during operation to establish a connection between the plurality of power supply panels 100, 200, 300, and 400 and the supply panel 500. You can crack down.

Accordingly, each of the plurality of power supply panels 100, 200, 300, and 400 may be connected to the supply panel 500 through opening and closing of the plurality of circuit breakers 130, 230, 330, 430, and 530, respectively.

The plurality of breakers (130, 230, 330, 430 and 530), the plurality of power supply panel (100, 200, 300 and 400) and the power supply terminal of the supply panel 500 and the bus line (1) between When DC power is connected, it is closed, and when the DC power is interrupted between the power terminal of the plurality of power supply panels (100, 200, 300 and 400) and the supply panel 500 and the bus line (1), it will be opened. You can.

The plurality of circuit breakers (130, 230, 330, 430 and 530), when the power supply of one or more of the plurality of power supply panel (100, 200, 300 and 400) is interrupted, the power supply is connected to the interrupted power supply panel A circuit breaker and a circuit breaker connected to the supply panel 500 are closed to connect the interrupted power supply panel and the supply panel 500 to the bus line 1, from the supply panel 500 to the interrupted power supply panel. The DC power can be supplied.

In this case, the interrupted power supply panel is supplied with the DC power from the converter connected to the battery power supply B until power supply is stopped and the DC power supply conducted from the supply panel 500 is supplied. Can be.

The plurality of circuit breakers (130, 230, 330, 430 and 530) also, when the power supply of one or more of the plurality of power supply panel (100, 200, 300 and 400) is interrupted, the power supply is stopped and the power supply panel A circuit breaker connected to a circuit breaker and a circuit breaker connected to another power supply panel other than the interrupted power supply panel are closed, and the interrupted power supply panel and the other power supply panel are connected to the bus line 1, so that the other power supply panel is switched to the interrupted power supply panel DC power can also be supplied.

That is, when the power supply is interrupted, the plurality of power supply panels 100, 200, 300, and 400 may be connected to the other power supply panel and receive the DC power from the other power supply panel.

The plurality of circuit breakers (130, 230, 330, 430 and 530), when the power supply of one or more of the plurality of power supply panel (100, 200, 300 and 400) is interrupted, the power supply is connected to the interrupted power supply panel A circuit breaker, a circuit breaker connected to one or more of the other power panels, and a circuit breaker connected to the supply panel 500 are closed, from one or more of the other power panels and the supply panel 500 through the bus line 1 The DC power may be supplied to the suspended power supply panel.

Accordingly, the plurality of power supply panels 100, 200, 300 and 400 are connected to a plurality of sources including the supply panel 500 through the bus line 1, and the DC from the plurality of supply sources It may be powered.

The system 1000, such as at least one of the plurality of power supply panel (100, 200, 300 and 400), the supply panel 500 and the plurality of circuit breakers (130, 230, 330, 430 and 530) By monitoring the state, at least one of the plurality of power supply panels (100, 200, 300 and 400), the supply panel 500 and the plurality of circuit breakers (130, 230, 330, 430 and 530) according to the monitoring result A control device 600 for controlling may be further included.

That is, the plurality of power supply panels (100, 200, 300 and 400), the supply panel 500 and the plurality of circuit breakers (130, 230, 330, 430 and 530) are controlled by the control device (600) Can be.

Each of the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500 may communicate with the control device 600 and operate according to a result of communication 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 and the supply panel 500 includes the one or more first power converters 110, 210, 310 and 410 and the second power included in each. According to the result of controlling and monitoring the operation of the converters 120, 220, 320 and 420, the control device 600 requests the opening and closing control of each of the plurality of breakers 130, 230, 330, 430 and 530 You can.

Each of the plurality of power supply panels (100, 200, 300 and 400) and the supply panel 500 includes the one or more first power converters 110, 210, 310 and 410 and the second power included in each. The result of controlling and monitoring the operation of the converters 120, 220, 320 and 420 may be transmitted to the controller 600.

Each of the plurality of power supply panels (100, 200, 300 and 400) and the supply panel 500 includes the one or more first power converters 110, 210, 310 and 410 and the second power included in each. By controlling and monitoring the operation of the converters 120, 220, 320 and 420, the results of detecting the states of the DC power supply and the driving power supply can be transmitted to the control device 600.

Here, each of the plurality of power supply panels (100, 200, 300 and 400) and the supply panel 500, the one or more first power conversion devices (110, 210, 310 and 410) and the second power conversion device Controls (120, 220, 320 and 420), the one or more power sources 10, the one or more first power converters 110, 210, 310 and 410, the DC power, the driving power and the load Control units 140, 240, 340, and 440 that monitor at least one abnormal state of the 20 may be further included.

The control unit 140, 240, 340 and 440 may be a central control device 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 unit (140, 240, 340 and 440), the one or more first power converter (110, 210, 310 and 410), the second power converter (120, 220, 320 and 420) and the plurality of It is possible to control the breakers 130, 230, 330 and 430.

The control unit (140, 240, 340 and 440), the one or more first power converter (110, 210, 310 and 410), the second power converter (120, 220, 320 and 420) and the plurality of It may include a programmable logic controller (PLC) that controls the circuit breakers 130, 230, 330, and 430.

The control unit (140, 240, 340 and 440), the one or more first power converter (110, 210, 310 and 410), the second power converter (120, 220, 320 and 420) and the plurality of By monitoring the state of the circuit breakers (130, 230, 330 and 430), the one or more first power conversion devices (110, 210, 310 and 410), the second power conversion device (120, 220) based on the monitored results , 320 and 420) and the plurality of circuit breakers 130, 230, 330 and 430.

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) , It is possible to control the operation of the second power converter (120, 220, 320 and 420) and the plurality of circuit breakers (130, 230, 330 and 430).

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.

For example, by controlling an operation of a control target converter among the one or more first power converters 110, 210, 310 and 410, the second power converters 120, 220, 320 and It may be controlled to convert and supply the DC power to 420).

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.

For example, by controlling the operation of the control target converter among the second power converters 120, 220, 320 and 420, control to convert and supply the driving power to the load 20 through the control target converter. Can be done.

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 units 140, 240, 340, and 440 may control the operation of the plurality of breakers 130, 230, 330, and 430 to control supply and demand of the DC power.

For example, the plurality of circuit breakers 130, 230, 330, and 430 may be closed to control the DC power supply from the bus line 1 or to supply the DC power to the bus line 1. .

The controllers 140, 240, 340, and 440 also communicate with any one or more of external communication devices and control devices, and the one or more first power conversion devices 110, 210, and 310 according to the communication result. And 410), the second power converters 120, 220, 320 and 420 and the plurality of circuit breakers 130, 230, 330 and 430 may be operated.

For example, from the control device, the one or more first power converters 110, 210, 310 and 410, the second power converters 120, 220, 320 and 420 and the plurality of circuit breakers 130, 230, and 330 And 430), the control command for any one or more operation control is received, and the one or more first power converters 110, 210, 310 and 410, and the second power converters 120 and 220 according to the control command. , 320 and 420) and one or more of the plurality of breakers 130, 230, 330, and 430.

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) 3, 210 # 3, 310 # 3 and 410 # 3) 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 Only 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 selects one of the one or more first power converters 110, 210, 310 and 410 according to the state of the one or more power sources 10, and selects the selected one. The converter 110 may be controlled to deliver the DC power to each of the second power converters 120, 220, 320 and 420.

That is, the control unit 140, 240, 340 and 440 converts the DC power through one of the converters 110 selected from the one or more first power converters 110, 210, 310 and 410. It may be controlled to transmit to the second power conversion device (120, 220, 320 and 420).

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 converter (120, 220, 320 and 420) corresponding to the converter 110 and the converter 110 that is transmitting the DC power to the converter When an abnormality occurs in any one or more of the power supply sources 10, a converter 110 other than the converter 110 transmits the DC power to the second power converters 120, 220, 320, and 420. Can be controlled.

The control unit (140, 240, 340 and 440), the second power converter (120, 220, 320 and 420) corresponding to the converter 110 and the converter 110 that is transmitting the DC power to the converter When an abnormality occurs in any one or more of the power supply sources 10, a converter 110 other than the converter 110 transmits the DC power to the second power converters 120, 220, 320, and 420. In this way, the power supply 10 and the converter 110 being supplied with power can be switched.

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 converter (110 # 3, 210 # 3, 310 # 3 and 410 # 3) receives the power from (10 # 3) to convert the DC power to deliver the DC power to the inverter 120 The first AC power supply 10 # 1 being supplied with power is switched to the second AC power supply 10 # 3, and the first converters 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 one or more first power converters 110, 210, 310 and 410, the second power converters 120, 220, 320 and 420 and the plurality of breakers 130, 230, 330 and 430 The control unit (140, 240, 340 and 440) to control the opening and closing of the plurality of breakers (130, 230, 330 and 430) according to the state of the DC power or the driving power, the bus line (1 ) To control the water 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, the plurality of breakers 130, 230, 330, and 430 close the bus line ( It can be controlled to supply and receive the DC power from 1).

Alternatively, when the size of the driving power is larger than the required size of the load 20, or when the DC power is available, the bus line 1 is closed by closing the plurality of breakers 130, 230, 330, and 430. ) Can be controlled to supply the DC power.

In the opposite case, a fault occurs in the one or more first power converters 110, 210, 310 and 410 or the second power converters 120, 220, 320 and 420, causing an accident current at the output terminal. When the flow, or when the accident current flows to the output terminal due to an abnormality in the one or more power sources 10 or the load 20, the plurality of breakers 130, 230, 330 and 430 are opened. The accident current may be prevented from being supplied to the bus line 1.

The control unit (140, 240, 340 and 440), when an abnormality occurs in two or more of the one or more power supply 10, the plurality of circuit breakers (130, 230, 330 and 430) closed, the bus line It is possible to control to receive the DC power from another power supply connected to the bus line 1 through (1).

The control unit (140, 240, 340 and 440), when one or more of the one or more power supply 10, an abnormality occurs, the one or more power supply 10 and the one or more first power conversion device (110, Separate the connection of 210, 310 and 410, closing the plurality of breakers (130, 230, 330 and 430), another power supply connected to the bus line (1) through the bus line (1) ( 200, 300 and 400), or may be controlled to receive the DC power from the supply panel 500.

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 plurality of circuit breakers 130, 230, 330, and 430 ) To be closed, so that the DC power is supplied from the other power supply units 200, 300 and 400 connected to the bus line 1 through the bus line 1 or the supply panel 500. Can be.

The control unit (140, 240, 340 and 440), when an abnormality occurs in the other power supply (200, 300 and 400) connected to the bus line (1), the plurality of circuit breakers (130, 230, 330 and By closing 430), the bus line 1 may be controlled to supply DC power to the other power supply units 200, 300, and 400.

The control unit (140, 240, 340 and 440), when the other power supply (200, 300 and 400) connected to the bus line (1) has an abnormality, any one of the one or more power supply (10) The supply source 10 that is controlled to receive more power from the controller and closes the plurality of circuit breakers 130, 230, 330, and 430 to supply more power through the bus line 1, and the corresponding The DC power converted by the converter 110 may be controlled to be supplied to the other power supply.

For example, when power is supplied from the first AC power supply 10 # 1 among the one or more power supply sources 10, when the other power supply devices 200, 300 and 400 have an abnormality, the plurality of breakers ( 130, 230, 330, and 430 closed, the third converters 110 # 3, 210 # 3, 310 # 3 and 410 # 3 to receive more power from the second AC power supply 10 # 3 By controlling the, the third converter (110 # 3, 210 # 3, 310 # 3) to the other power supply (200, 300 and 400) connected to the bus line (1) through the bus line (1) And it may be controlled to supply the DC power converted in 410 # 3).

The control unit (140, 240, 340 and 440), when an abnormality occurs in the one or more power supply 10, the plurality of circuit breakers (130, 230, 330, 430 and 530) closed, the supply panel ( 500), the control device 600 may request control to receive the DC power.

The control device 600 controls the opening and closing of each of the plurality of breakers 130, 230, 330, 430, and 500, so that the plurality of power supply panels 100, 200, 300, and 400 or the supply panel 500 ) Can be connected to the bus line 1.

In the bus line 1, the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500 may be connected.

The plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500 may be connected to the bus line 1 through the plurality of circuit breakers 130, 230, 330, 430, and 530. .

The plurality of breakers (130, 230, 330, 430 and 530), the plurality of power supply panels (100, 200, 300 and 400), respectively, and between the bus line (1) and the supply panel (500) and the bus It can be arranged between each of the lines (1).

The plurality of circuit breakers (130, 230, 330, 430 and 530), the first to fourth circuit breakers for controlling the connection of each of the plurality of power supply panels (100, 200, 300 and 400) and the bus line (1) It may include (130, 230, 330 and 430) and the fifth circuit breaker 530 for interrupting the connection of the supply panel 500 and the bus line (10).

That is, the supply panel 500 is provided with the fifth circuit breaker 530 in a converter connected to the bus line 1, and the bus line 1 through opening and closing of the fifth circuit breaker 530. Can be cracked.

The supply panel 500 may transfer the DC power output from the one or more first power converters 510 to the bus line 1.

In the bus line 1, the power terminals to which the DC power is input and output from each of the plurality of power supply panels 100, 200, 300, and 400 and the supply panel 500 are commonly connected, so that the plurality of power supply panels (100, 200, 300 and 400) and the DC power converted by the supply panel 500 may be transferred.

The bus line 1 is a DC bus line through which DC power flows, and DC power delivered through the power terminals of each of the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500 is provided. Can flow.

That is, the DC power may flow in the bus line 1 according to the opening and closing of each of the plurality of breakers 130, 230, 330, 430, and 530.

As such, the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500 are connected to the bus line 1 through the plurality of circuit breakers 130, 230, 330, 430 and 530. , The DC power may be transferred between the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500 through the bus line 1.

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. 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 detect states of the DC power supply and the driving power supply, and transmit the detection result to the control device 600.

The supply panel 500 may control opening and closing of the fifth circuit breaker 510 according to a result of controlling and monitoring the operation of the one or more first power conversion devices 510.

The supply panel 500 may transmit a result of controlling and monitoring the operation of the one or more first power conversion devices 510 to the control device 600.

The supply panel 500 may control and monitor the operation of the one or more first power conversion devices 510 to detect the state of the DC power.

The supply panel 500 may detect the state of the DC power supply and transmit the detection result to the control device 600.

The control device 600 is in communication with the plurality of power supply panels (100, 200, 300 and 400) and the supply panel 500, respectively, the plurality of power supply panels (100, 200, 300 and 400) and the Each of the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500 may be controlled based on status information received from each of the supply panels 500.

For example, according to the state information of the DC power and the driving power received from each of the plurality of power supply panels 100, 200, 300 and 400, and the supply panel 500, the plurality of power supply panels 100, 200, 300 and 400) and each of the supply panel 500 to control the conversion and supply of the DC power supply, and each of the plurality of power supply panels 100, 200, 300 and 400 to control the conversion and supply of the driving power. .

The control device 600 is in communication with the plurality of power supply panels (100, 200, 300 and 400) and the supply panel 500, respectively, the plurality of power supply panels (100, 200, 300 and 400) and the Conversion and supply of the driving power of each of the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500, or the plurality of power supplies based on the status information received from each of the supply panels 500 The plurality of circuit breakers 130, 230, 330, 430, and 530 included in each of the panels 100, 200, 300, and 400 and the supply panel 500 may be controlled.

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 about the one or more of the plurality of power supply panels (100, 200, 300 and 400) and the supply panel (500) based on the states of the one or more power supply sources (10) and the load (20) Conversion and supply of driving power, or control of the plurality of circuit breakers 130, 230, 330, 430 and 530 included in each of the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500 You may.

In this case, the control device 600 converts and supplies the driving power of each of the plurality of power supply panels 100, 200, 300 and 400, and the supply panel 500, or the plurality of power supply panels 100, 200, 300 and 400) and control commands for the control of the plurality of circuit breakers 130, 230, 330, 430 and 530 included in each of the supply panel 500, the plurality of power supply panels 100, 200, 300 And 400) and the supply panel 500, respectively, according to the control command through the control units 140, 240, 340, and 440 included in each of the plurality of power supply panels 100, 200, 300, and 400. Control can 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. To switch to another source, the plurality of circuit breakers (130, 230, 330, and 430) are opened, and control commands for controlling to convert and supply the DC power by receiving power from power other than the system power (G) Transfer to the control units 140, 240, 340 and 440 included in each of the plurality of power supply panels 100, 200, 300 and 400, so that each of the plurality of breakers 130, 230, 330 and 430 is opened, It may be controlled to convert and supply the DC power by receiving power from the bypass power source P or the battery power source B.

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), the power supply and the circuit breaker (130, 230) of the supply panel 500 has an error , 330, 430 and 530 are closed, so that an abnormal power supply panel can be controlled to receive the DC power from the supply panel 500 through the bus line 1.

For example, when 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 supply panel through the bus line 1 The first power supply panel so as to supply the DC power converted by any one of the conversion devices 510 of 500 to the second power conversion devices 120, 220, 320 and 420 of the first power supply panel 100 The circuit breakers 130 and 530 of each of the 100 and the supply panel 500 are closed, and the one or more first power conversion devices 110, 210, 310 and 410 of the first power supply panel 100 are blocked. And the DC power converted by any one of the one or more first power converters 510 of the supply panel 500 through the bus line 1 to the second of the first power panel 100. The first power supply panel 100 transmits a control command to control the power conversion devices 120, 220, 320, and 420 to the first power supply panel 100 and the supply panel 500, respectively. The circuit breakers 130 and 530 of the supply panel 500 are closed, and any one of the one or more first power converters 510 of the supply panel 500 supplies the DC power to the bus line 1. Through it may be controlled to supply to the second power conversion device (120, 220, 320 and 420) of the first power supply panel (100).

That is, when the abnormality occurs in the plurality of power supply panels 100, 200, 300 and 400, the supply panel 500 applies the DC power through the bus line 1 to the load 20 of the power supply panel in which the error occurred. Can be supplied.

The supply panel 500, when supplying the DC power to the abnormal power generation panel, the one or more first power conversion device 510 for converting the DC power according to the state of the one or more power supply 10 ), The DC power may be transferred to the bus line 1 by the selected converter.

That is, when supplying the DC power to the abnormality generating power panel, the supply panel 500 is a converter selected according to the state of the one or more power supply sources 10 to the DC to the bus line 1 Power may be delivered to supply the DC power to the abnormal power supply panel.

For example, if the rating of the system power G and the bypass power P among the one or more power sources 10 supplying power to the supply panel 500 is lower than a reference rating, the battery power B ) To select the 2-5 converter (510 # 2) corresponding to the battery power (B) to supply the DC power, and the battery to the selected 2-5 converter (510 # 2) The power supplied from the power source B may be converted into the DC power source and transmitted to the bus line 1.

When an abnormality occurs in the supply panel 500, the control device 600 closes the circuit breaker of the power supply panel closest to the abnormality power supply panel, so that the abnormality power supply panel is connected to the adjacent through the bus line 1. It can be controlled to receive the DC power from the power supply panel.

That is, when an abnormality occurs in the supply panel 500 that supplies the DC power to the abnormality generating power panel, and the supply panel 500 cannot supply the DC power to the abnormality generating power panel, the control The device 600 closes the power supply panel having the abnormality and the circuit breakers 130, 230, 330, and 430 of the power supply panel closest to the power supply panel, so that the abnormality generated power supply panel is connected to the adjacent power line through the bus line 1. It can be controlled to receive the DC power from the power supply panel.

For example, when a failure occurs in the converter 110 and the supply panel 500 of the first power supply panel 100 among the plurality of power supply panels 100, 200, 300, and 400, the bus line ( The second power of the first power panel 100 converts DC power converted by any one of the converters 210 of the second power panel 200 closest to the first power panel 100 through 1). The circuit breakers 130 and 230 of the first power panel 100 and the second power panel 200 are closed to supply to the converters 120, 220, 320, and 420, and the first power panel ( 100) to cut off the one or more first power converters 110, 210, 310 and 410, and convert any one of the one or more first power converters 210 of the second power panel 200 The control command for controlling to supply the DC power to the second power converters 120, 220, 320 and 420 of the first power supply panel 100 through the bus line 1 is applied to the first power. The circuit breakers 130 and 230 of the first power supply panel 100 and the second power supply panel 200 are closed to the second power supply panel 200 and the second power supply panel 200, respectively, and the second power supply panel 200 is closed. Any one of the one or more of the first power converters 210 of the power panel 200 receives the DC power through the bus line 1 and the second power converter 120 of the first power panel 100. , 220, 320 and 420).

The control device 600, when the plurality of the abnormal power supply panel, one or more breakers of the supply panel 500 and one of the power supply panel closest to the abnormal power supply panel according to the abnormal state of each of the abnormal power supply panel ( 130, 230, 330, 430, and 530 closed, so that each of the abnormal power supply panels receives the DC power from at least one of the supply panel 500 and the adjacent power supply panel through the bus line 1 Can be controlled.

That is, in the control device 600, when there are a plurality of the abnormal generating power panels, at least one of the supply panel 500 and the adjacent power supply panel may generate the abnormal power according to the abnormal state of each of the abnormal generating power panels. It may be controlled to supply the DC power to each class.

For example, a failure occurs in all of the one or more first power converters 110, 210, 310 and 410 in the first power panel 100, and the second power in the second power panel 200. When a part of the converter 220 temporarily stops operation, the control device 600 determines that the abnormal state of the first power panel 100 is more serious than the abnormal state of the second power panel 200 By doing so, the operation of the first power supply panel 100 is restored through the supply panel 500, and the second power supply panel (through the third power supply panel 300 adjacent to the second power supply panel 200) ( In order to maintain the operation of 200), the supply panel 500 controls the first and fifth breakers 130 and 530 closed to supply the DC power to the first power supply panel 100, and the 3 The second and third circuit breakers 230 and 330 may be ferro-controlled so that the power panel 300 supplies the DC power to the second power panel 200. .

As described above, when an abnormality occurs in any one or more of the plurality of power supply panels 100, 200, 300, and 400, by controlling to receive the DC power from the supply panel 500 through the bus line 1, The supply panel 500 may perform a UPS function for each of the plurality of power supply panels 100, 200, 300, and 400.

Accordingly, the power supply 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 The supply of the driving power to the (20) can be continuously maintained, so that 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 an abnormality occurs Regardless of the type and degree of operation, the operation of the load 20 and the control of the power supply system 1000 can be stably performed.

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

Examples of operation as shown in FIGS. 4 to 7 include an example of operation when the power supply system 1000 includes four power panels 100, 200, 300 and 400 and one supply panel 500. In the above, the power supply system 1000 may include less than five or more than five of the plurality of power supply panels 100, 200, 300, and 400, or may include a plurality of the supply panel 500. have.

The preferred embodiment of the power supply system 1000 may include four power supply panels 100, 200, 300 and 400 and one supply panel 500, as shown in FIGS. In the case where the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500 are four and one as shown in FIGS.

4 is a case where the plurality of power supply panels (100, 200, 300 and 400) and the supply panel 500 are each supplied with power from the system power supply (G) among the one or more power supply sources (10), this In the case, the power supply from the bypass power source (P) and the battery power source (B) is cut off, and the power is supplied through the system power source (G) to be converted into the DC power source and the driving power source in order of the load (20). ) Can be supplied to each.

An example of the operation as illustrated in FIG. 4 is a typical operation in which power is supplied from the system power G to operate, and the normal operation of the power supply 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 and the supply panel 500 are supplied with power from the bypass power source P among the one or more power supply sources 10, This may be the case where an abnormality has occurred in the system power supply G, in which case the power supply from the system power supply G and the battery power supply B is cut off and through the bypass power supply P Power may be supplied to each of the loads 20 by converting the DC power and the driving power.

The operation example as illustrated 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 power supply system 1000 may be performed as described above.

6 is a case where the plurality of power supply panels (100, 200, 300 and 400) and the supply panel 500 are each supplied with power from the battery power (B) among the one or more power supply sources (10), the This may be the case where an abnormality occurs in the system power supply G and the bypass power supply P, in which case the power supply from the system power supply G and the bypass power supply P is cut off, and the The power may be supplied through the battery power B to be converted to the DC power and the driving power in order to be supplied to each of the loads 20.

An example of the operation 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 of the power supply 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 and the supply panel 500 are supplied with power from the emergency power source A among the one or more power supply sources 10, the This may be the case where an abnormality occurs in the system power (G), the bypass power (P), and the battery power (B). In this case, the system power (G), the bypass power (P), the The power supply from the battery power B is cut off, and the emergency power A can 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 power supply system 1000 may be performed as described above.

The power supply system 1000 may operate in such a manner that each of the plurality of power supply panels 100, 200, 300, and 400 and the supply panel 500 is supplied with power from the same power supply, or Each of the power supply panels 100, 200, 300 and 400 and the supply panel 500 may be selectively supplied with power from any one of the one or more power supply 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 ) Is operated by being supplied with power, and the supply panel 500 may be operated by receiving power from the battery power B.

In addition, each of the plurality of power supply panels 100, 200, 300 and 400 and the supply panel 500 may operate 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 ( It receives more power from P) and converts it to the DC power through a 2-3 converter (210 # 3), and converts it from the 2-3 converter (210 # 3) through the bus line (1). One DC power may be transmitted to each of the second power converters 120, 220, 320, and 420 of the first power panel 100.

In the case of such an example, by closing the first and second breakers 130 and 230 of each of the first power panel 100 and the second power panel 200, the first power panel 100 and The second power supply panel 200 is connected to the bus line 1, so that the DC power supply from the second power supply panel 200 to the first power supply panel 100 through the bus line 1 is performed. Supply can be made.

As described above, each of the plurality of power supply panels 100, 200, 300, and 400 and the supply panel 500 is operated by receiving power from one or more power supply sources 10, thereby causing the plurality of power supply panels 100, 200, 300 and 400) and the power supply between the supply panel 500, that is, the UPS function between the plurality of power supply panels 100, 200, 300 and 400 and the UPS function of the supply panel 500 may be performed. have.

The embodiment of the power supply system according to the present invention as described above may be applied to a power supply device that supplies / uses DC power, a power supply system, and a method of operating the 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, 410 and 510): first power converter (converter)
120 (220, 320 and 420): second power converter (inverter)
130 (230, 330, 430 and 530): breaker
140 (240, 340 and 440): control
500: supply panel 600: control unit
1000: power supply system

Claims (18)

A plurality of power supply panels that convert power supplied from one or more power sources into DC power, convert the converted DC power into drive power of a load, and supply the power to the load;
A supply panel for converting power supplied from one or more power sources into DC power and supplying the converted DC power to the plurality of power panels when connected to the plurality of power panels through a bus line;
The bus line through which the power terminals of each of the plurality of power supply panels and the power supply terminals of the supply panel are connected to conduct the DC power converted by the plurality of power supply panels and the supply panel; And
And a plurality of circuit breakers arranged between each of the power terminals and the bus lines to connect or disconnect each of the power terminals and the bus lines by differently opening and closing according to a power supply state of one or more of the plurality of power panels. ,
The plurality of circuit breakers,
When power supply to one or more of the plurality of power supply panels is stopped,
One of the other power supply panel and the supply panel such that the DC power is conducted to the power supply panel where the power supply is stopped from one or more of the power supply panel and the supply panel other than the power supply panel where the power supply is interrupted through the bus line. The power supply system characterized in that the circuit breaker connected to the power supply panel in which the power supply is interrupted is closed, and one or more of the other power supply units and the supply panel and the interrupted power supply unit are connected to the bus line. 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,
The power supply for supplying power to the supply panel,
Power supply system comprising at least the battery power. The method of claim 9,
The supply group,
More power is supplied from the first AC power and the second AC power,
And one or more first power converters for converting power supplied from the one or more power sources to the DC power. The method of claim 10,
The supply group,
Power supply system, characterized in that to supply the DC power to the plurality of power supply panel to any one of the one or more of the first power conversion device according to the state of the one or more power supply. According to claim 2,
The supply panel consists of a plurality,
Power supply system, characterized in that each of a plurality of supply panels are connected to the bus line. The method of claim 12,
The supply group,
A power supply system characterized in that a supply target for supplying the DC power among the plurality of power supply panels is provided for each of the plurality of supply panels, and the DC power is supplied to the supplied supply target. According to claim 2,
The supply group,
Power supply system characterized in that each of the plurality of power supply panel is provided at a position spaced within a certain distance. According to claim 2,
The plurality of circuit breakers,
And when the DC power is connected between the power terminal and the bus line, closed, and opened when the DC power is disconnected between the power terminal and the bus line. 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,
A circuit breaker connected to the interrupted power supply panel, a circuit breaker connected to one or more power supply panels of the other power supply panels, and a circuit breaker connected to the supply panel are closed, so that the interrupted power supply from one or more of the other power supply panels and the supply panel through the bus line is closed. Power supply system, characterized in that to supply the DC power in half. The method of claim 16,
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 supply panel is supplied. The method according to any one of claims 1 to 17,
A control device for monitoring at least one of the plurality of power supply panels, the supply panel and the plurality of circuit breakers, and controlling at least one of the plurality of power supply panels, the supply panel and the plurality of circuit breakers according to a monitoring result; Power supply system characterized in that it further comprises.

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