Intelligent standby power system

Abstract

The utility model discloses an intelligent standby power system, and belongs to the technical field of electrics. The intelligent standby power system comprises a controller, a power grid input port, at least one intelligent port and a switching power supply, the power grid input port is electrically connected with a power grid; the intelligent port is used for being electrically connected with a controllable load; the power grid input port is provided with an intelligent circuit breaker and / or at least one of the at least one intelligent port is provided with an intelligent circuit breaker; the switching power supply is electrically connected with the intelligent circuit breaker so as to supply power to the intelligent circuit breaker; the intelligent circuit breaker arranged at the power grid input port is electrically connected with the intelligent circuit breaker arranged at the intelligent port; the intelligent circuit breaker is in bidirectional communication connection with the controller so as to transmit electrical data of an internal loop of the intelligent standby power system from the intelligent circuit breaker to the controller and transmit a first instruction from the controller to the intelligent circuit breaker; the first instruction is used for controlling on-off of the intelligent circuit breaker. The intelligent standby power system disclosed by the utility model is simpler in structure.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and in particular to an intelligent backup power system. Background Art

[0002] The backup power system based on renewable energy sources such as photovoltaic storage can switch between traditional grid power supply and photovoltaic, energy storage and other power supply sources to achieve a grid-connected mode connected to the grid and an off-grid mode disconnected from the grid. In scenarios with diverse power sources, in order to better control the output and utilization of electric energy, the power supply and load ends generally need to be controllable, that is, the backup power system can automatically or remotely control the connection and exit of the power supply or load. In order to achieve control of the connection and exit of the power supply or load, the backup power system also needs to collect data such as voltage and / or current on the circuit to determine whether to control the connection and exit of the power supply or load.

[0003] In order to achieve the above-mentioned purpose of controlling the access and exit of power supply or load, Figure 1 As shown, the traditional backup power system generally adopts the structure of "circuit breaker + contactor + current / voltage transformer", which requires the use of more components. The structure of the entire backup power system is complex, occupies a large area and is relatively bloated. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an intelligent backup power system with a simpler structure.

[0005] The present application provides an intelligent backup power system, which includes: a controller, a grid input port, at least one intelligent port and a switching power supply; the grid input port is used to be electrically connected to the grid; the intelligent port is used to be electrically connected to a controllable load;

[0006] The grid input port is provided with an intelligent circuit breaker and / or at least one of the at least one intelligent port is provided with an intelligent circuit breaker;

[0007] The switching power supply is electrically connected to the intelligent circuit breaker to supply power to the intelligent circuit breaker;

[0008] The intelligent circuit breaker provided at the grid input port is electrically connected to the intelligent circuit breaker provided at the intelligent port;

[0009] The intelligent circuit breaker is connected to the controller for bidirectional communication so as to transmit electrical data of an internal circuit of the intelligent backup power system from the intelligent circuit breaker to the controller, and to transmit a first instruction from the controller to the intelligent circuit breaker; the first instruction is used to control the on and off of the intelligent circuit breaker; the first instruction is generated by the controller based on the electrical data.

[0010] According to the intelligent backup power system of the present application, the electrical data of the internal circuit of the intelligent backup power system is obtained through the intelligent circuit breaker, and the first instruction issued by the controller is responded to by the intelligent circuit breaker to realize the on-off control of the intelligent circuit breaker. The intelligent backup power system uses fewer components, and the overall structure, layout and wiring are more compact and simple, which can reduce the volume and floor space of the intelligent backup power system. It is a new type of simple, efficient, flexible and diverse intelligent backup power system. Furthermore, when the power supply or load is in the connected state, the intelligent circuit breaker relies on the mechanical structure to lock when closing, and does not need to continuously power the coil of the contactor as in the related technology, which can significantly reduce the power consumption of the intelligent backup power system.

[0011] According to one embodiment of the present application, the controller is integrated with the switching power supply.

[0012] According to one embodiment of the present application, the bidirectional communication connection between the intelligent circuit breaker and the controller includes a wired connection and / or a wireless connection.

[0013] According to one embodiment of the present application, the bidirectional communication connection between the intelligent circuit breaker and the controller includes connection via a communication bus.

[0014] According to one embodiment of the present application, the bidirectional communication connection between the intelligent circuit breaker and the controller is further used to transmit the overload protection threshold of the intelligent circuit breaker from the controller to the intelligent circuit breaker.

[0015] According to the intelligent backup power system of the present application, by transmitting the overload protection threshold of the intelligent circuit breaker from the controller to the intelligent circuit breaker, the overload protection threshold of the intelligent circuit breaker can be flexibly adjusted as needed, and the port equipped with the intelligent circuit breaker can be connected to power supplies or loads of different power sizes as needed. Power supplies or loads of different power / capacity can be flexibly connected to the port equipped with the intelligent circuit breaker, and matching of overload protection can be achieved.

[0016] According to one embodiment of the present application, the bidirectional communication connection between the intelligent circuit breaker and the controller is also used to transmit a second instruction from the controller to the intelligent circuit breaker; the second instruction is used to control the opening and closing of the leakage current protection function of the intelligent circuit breaker.

[0017] According to the intelligent backup power system of the present application, the intelligent circuit breaker responds to the second instruction issued by the controller to realize the leakage current protection function of the intelligent circuit breaker, so that the port provided with the intelligent circuit breaker can be connected to different types of loads or power sources, which can improve the applicability of the port provided with the intelligent circuit breaker and the flexibility of using the port.

[0018] According to one embodiment of the present application, the bidirectional communication connection between the intelligent circuit breaker and the controller is further used to transmit the setting value and / or protection value of the leakage current protection function of the intelligent circuit breaker from the controller to the intelligent circuit breaker.

[0019] According to the intelligent backup power system of the present application, by transmitting the setting value and / or protection value of the leakage current protection function of the intelligent circuit breaker from the controller to the intelligent circuit breaker, the setting value and / or protection value of the leakage current protection function of the intelligent circuit breaker can be flexibly adjusted as needed, and can be compatible with different protection requirements.

[0020] According to one embodiment of the present application, the bidirectional communication connection between the intelligent circuit breaker and the controller is also used to transmit feedback information of the first instruction from the intelligent circuit breaker to the controller; the feedback information of the first instruction is used to indicate the state of the intelligent circuit breaker after executing the first instruction.

[0021] According to one embodiment of the present application, the bidirectional communication connection between the intelligent circuit breaker and the controller is also used to transmit alarm information from the intelligent circuit breaker to the controller; the alarm information is generated when the intelligent circuit breaker is disconnected due to a fault in the intelligent backup power system.

[0022] According to one embodiment of the present application, the intelligent backup power system further includes: at least one ordinary load port; the ordinary load port is used to be electrically connected to an ordinary load; the intelligent port is provided with an ordinary circuit breaker;

[0023] The intelligent circuit breaker provided at the grid input port is electrically connected to the ordinary circuit breaker provided at the ordinary load port.

[0024] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 It is a structural diagram of an intelligent backup power system in related technology;

[0027] Figure 2 This is one of the structural diagrams of the intelligent backup power system provided in the embodiment of the present application;

[0028] Figure 3 This is the second structural diagram of the intelligent backup power system provided in the embodiment of the present application;

[0029] Figure 4 This is the third structural diagram of the intelligent backup power system provided in the embodiment of the present application;

[0030] Figure 5 This is the fourth structural diagram of the intelligent backup power system provided in the embodiment of the present application. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0032] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0033] In related technologies, such as Figure 1 As shown, an intelligent backup power system may include: a grid input port end circuit breaker 101, a grid input port end contactor 102, a voltage / current sensor 103 of the grid input port, a first intelligent port circuit breaker 104, a first intelligent port end contactor 105, a voltage / current sensor 103 of the first intelligent port, a second intelligent port circuit breaker 106, a second intelligent port end contactor 107, a voltage / current sensor 103 of the second intelligent port, a normal load port circuit breaker 108 and a controller 109.

[0034] The grid input port circuit breaker 101 is a standard circuit breaker installed at the grid input port of the intelligent backup power system. The first intelligent port circuit breaker 104 is a standard circuit breaker installed at the first intelligent port of the intelligent backup power system. The second intelligent port circuit breaker 106 is a standard circuit breaker installed at the second intelligent port of the intelligent backup power system. The standard load port circuit breaker 108 is a standard circuit breaker installed at the standard load port of the intelligent backup power system. Generally, the second intelligent port circuit breaker 106 needs to have leakage current protection to ensure electrical connection with the inverter.

[0035] The grid input port end circuit breaker 101 can be used to electrically connect the grid and the grid input port end contactor 102. The grid input port end contactor 102 can be used to electrically connect the grid input port end circuit breaker 101 with the first smart port end contactor 105, the smart port end contactor 107, and the common load port circuit breaker 108. The first smart port end contactor 105 can be used to electrically connect the grid input port end contactor 102 with the first smart port end contactor 104. The second smart port end contactor 107 can be used to electrically connect the grid input port end contactor 102 with the second smart port end contactor 106. The first smart port end contactor 104 can be used to electrically connect the controllable load 1 with the first smart port end contactor 105. The second smart port end contactor 106 can be used to electrically connect the controllable load 2 with the second smart port end contactor 107.

[0036] The voltage / current sensor 103 for the grid input port is located between the grid input port circuit breaker 101 and the grid input port contactor 102. The voltage / current sensor 103 for the first smart port is located between the first smart port circuit breaker 104 and the first smart port contactor 105. The voltage / current sensor 103 for the second smart port is located between the second smart port contactor 107 and the second smart port circuit breaker 106. The voltage / current sensor 103 is used to collect the voltage and current of the circuit. The voltage / current sensor 103 can generally be a transformer.

[0037] The voltage / current sensor 103 is in communication with the controller 109 , so that the voltage / current sensor 103 can directly transmit the collected voltage / current data to the controller 109 .

[0038] The controller 109 is also communicatively connected with the grid input port contactor 102, the first intelligent port contactor 105 and the second intelligent port contactor 107, thereby controlling the coil included in at least one of the grid input port contactor 102, the first intelligent port contactor 105 and the second intelligent port contactor 107 to realize the opening and closing of the corresponding circuit.

[0039] The following is Figure 1 The operating process of the intelligent backup power system shown in FIG. When controller 109 controls the grid input port contactor 102 to close, the intelligent backup power system enters grid-connected mode; when controller 109 controls the grid input port contactor 102 to open, the intelligent backup power system enters off-grid mode. Based on data collected by the voltage / current sensor 103 at the grid input port, controller 109 can calculate grid-side power and other information in real time. It can also provide protection by controlling the grid input port contactor 102 to close in the event of anomalies such as overvoltage or overcurrent.

[0040] The first smart port can have bidirectional energy flow, connecting to both loads and other power sources, such as photovoltaic inverters, power conversion systems (PCS), or diesel generators. The controller 109 controls the on / off switching of the first smart port's contactor 105, enabling control of the power supply / load's access. The controller 109 can also implement power calculation and fault protection based on data collected by the first smart port's voltage / current sensor 103.

[0041] The second smart port is similar to the first smart port. Compared with the first smart port, the second smart port circuit breaker 106 with leakage current protection can provide additional leakage current protection for the load connected to the second smart port to prevent accidental electric shock or electrical fire.

[0042] The normal load port can only be connected to normal loads and has no control function.

[0043] The intelligent backup power system mainly includes the following disadvantages:

[0044] First, the use of more components makes the entire intelligent backup power system larger and more bloated;

[0045] Second, when the power supply or load is connected, the corresponding contactor is in the closed state and the coil is always powered, so the power consumption is relatively large;

[0046] Third, the capacity of the connected power supply / load must match the specifications of the circuit breaker at the corresponding port, which is not flexible.

[0047] Fourth, the inverter itself usually has a large leakage current and cannot be connected to the second smart port. Otherwise, it is easy to trigger the leakage current protection malfunction, which limits the applicability of the second smart port.

[0048] Fifth, the setting values ​​of the leakage current protection function for personal protection and electrical fire are usually different, and the second intelligent port circuit breaker 106 cannot take both into account, and the compatibility of the second intelligent port is insufficient.

[0049] The following describes in detail the intelligent backup power system provided by the embodiment of the present application through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0050] like Figure 2 As shown, an intelligent backup power system includes: a controller 200, a grid input port 210, at least one intelligent port 220 and a switching power supply 310; the grid input port 210 is used to be electrically connected to the grid; the intelligent port 220 is used to be electrically connected to the controllable load;

[0051] The grid input port 210 is provided with a smart circuit breaker 300 and / or at least one of the at least one smart port 220 is provided with a smart circuit breaker 300;

[0052] The switching power supply 310 is electrically connected to the smart circuit breakers 300 to provide power to each smart circuit breaker 300 .

[0053] The smart circuit breaker 300 provided at the grid input port 210 is electrically connected to the smart circuit breaker 300 provided at the smart port 220;

[0054] The smart circuit breaker 300 is connected to the controller 200 for bidirectional communication so as to transmit electrical data of the internal circuit of the smart backup power system from the smart circuit breaker 300 to the controller 200, and to transmit a first instruction from the controller 200 to the smart circuit breaker 300; the first instruction is used to control the on and off of the smart circuit breaker 300.

[0055] In actual implementation, compared to related technologies, the embodiment of the present application uses an intelligent circuit breaker 300 to replace the "circuit breaker + contactor + voltage / current sensor" combination on at least one port of the intelligent backup power system. The above-mentioned ports include the grid input port 210 and each intelligent port 220. Among them, the intelligent port 220 is an intelligent port for connecting to controllable loads. The energy flow of the intelligent port 220 can be bidirectional, and can be connected to both loads and other power sources, such as photovoltaic inverters, energy storage converters (Power Conversion System, PCS) or diesel generators.

[0056] In some embodiments, the grid input port 210 and each smart port 220 may be provided with a smart circuit breaker 300 .

[0057] It should be noted that Figures 2 to 5 In the figure, the electrical connection relationship between devices is represented by a bold solid line (the specific type is a strong current connection), the electrical connection relationship between devices is represented by a non-bold solid line (the specific type is a weak current connection), and the communication connection relationship between devices is represented by a dotted line.

[0058] The grid can be connected to the intelligent backup power system through the grid input port 210. Controllable loads can be connected to the intelligent backup power system through the smart port 220. Controllable loads can include loads and other power sources, such as photovoltaic inverters, power conversion systems (PCS), or diesel generators. Controllable loads are loads whose connection and exit from the intelligent backup power system can be automatically or remotely controlled.

[0059] In some embodiments, when both the grid input port 210 and one smart port 220 are provided with smart circuit breakers 300 , the two smart circuit breakers 300 may be electrically connected, specifically, a strong electrical connection.

[0060] Any smart circuit breaker 300 is bidirectionally connected to the controller 200 for bidirectional communication. In some embodiments, both the smart circuit breaker 300 and the controller 200 may include a communication module, thereby enabling bidirectional communication between the communication module included in the smart circuit breaker 300 and the communication module included in the controller 200.

[0061] The Intelligent Circuit Breaker 300 is a new circuit breaker secondary system based on microelectronics, computer technology, and novel sensors. Key features include: an actuator unit comprised of power electronics and digital control devices, replacing conventional mechanical auxiliary switches and relays; novel sensors integrated with the digital control devices for independent data collection; and the ability to detect equipment defects and faults, issuing alarms before defects become faults, allowing measures to be taken to prevent accidents. The Intelligent Circuit Breaker 300 also features electronic operation, converting mechanical energy storage to capacitor energy storage, and switching mechanical transmission to a frequency converter driven directly by a motor, improving mechanical system reliability.

[0062] In actual implementation, the smart circuit breaker 300 can be used to obtain electrical data of the circuit where the smart circuit breaker 300 is located.

[0063] In some embodiments, the smart circuit breaker 300 may include a collection module. The collection module may be used to collect electrical data of the circuit in which the smart circuit breaker 300 is located. The electrical data of the circuit in which the smart circuit breaker 300 is located may be electrical data of a port on which the smart circuit breaker 300 is set.

[0064] In some embodiments, the electrical data may include at least one of current and voltage, etc. In some embodiments, the acquisition module may include a voltage / current sampling circuit or a voltage / current sensor.

[0065] In some embodiments, the electrical data collected by the smart circuit breaker 300 can be sent to the controller 200 via a communication module included in the smart circuit breaker 300. The controller 200 can implement functions such as power calculation and abnormal protection based on the electrical data collected by the smart circuit breaker 300.

[0066] In some embodiments, the controller 200 may send a first instruction to any smart circuit breaker 300 through a communication connection with the smart circuit breaker 300. The first instruction may include two types: a first instruction for controlling the smart circuit breaker 300 to close, and a first instruction for controlling the smart circuit breaker 300 to close.

[0067] When the intelligent circuit breaker 300 receives the first instruction sent by the controller 200, it can respond accordingly to switch the intelligent circuit breaker 300 from the closed state to the open state, or from the open state to the closed state.

[0068] In some embodiments, for any smart circuit breaker 300 , the first instruction issued by the controller 200 to the smart circuit breaker 300 may be generated by the controller 200 based on electrical data reported by the smart circuit breaker 300 .

[0069] In some embodiments, the first instruction may be sent from a host computer to the controller 200 .

[0070] In some embodiments, the control power supply of the smart circuit breaker 300 may be provided uniformly by the switching power supply 300. The smart circuit breaker 300 may be electrically connected to the switching power supply 300, specifically a weak current connection.

[0071] It is understood that the intelligent backup power system provided in the embodiments of the present application can realize automatic or remote control of the access and exit of power sources or loads. The above-mentioned power sources can include the power grid connected to the grid input port 210 and other power sources connected to the smart port 220, such as photovoltaic inverters, energy storage converters (Power Conversion System, PCS) or diesel generators. The above-mentioned loads can include loads connected to the smart port 220.

[0072] It should be noted that conventional circuit breakers have the ability to open and close circuits, but this can only be done on-site via a handle. If the circuit needs to be opened and closed automatically or remotely, this requires a contactor, an industrial control device. However, the intelligent circuit breaker 300 has an integrated motor, which can remotely close and open the circuit via a first command issued to the intelligent circuit breaker 300 by the controller 200, thus eliminating the contactor used in related art. Furthermore, because the intelligent circuit breaker 300 includes an internal voltage / current sampling circuit or voltage / current sensor, it can collect electrical data, eliminating the voltage / current sensor used in related art.

[0073] According to the intelligent backup power system provided in the embodiment of the present application, the electrical data of the internal circuit of the intelligent backup power system is obtained through the intelligent circuit breaker, and the first instruction issued by the controller is responded to by the intelligent circuit breaker to realize the on-off control of the intelligent circuit breaker. The intelligent backup power system uses fewer components, and the overall structure, layout and wiring are more compact and simple, which can reduce the volume and floor space of the intelligent backup power system. It is a new type of simple, efficient, flexible and diverse intelligent backup power system. Furthermore, when the power supply or load is in the connected state, the intelligent circuit breaker relies on the mechanical structure to lock when closing, and there is no need to continuously power the coil of the contactor as in the related art, which can significantly reduce the power consumption of the intelligent backup power system.

[0074] In some embodiments, as Figure 3 The controller 200 is shown integrated with the switching power supply 310 .

[0075] In actual implementation, the switching power supply 310 may be integrated into the controller 200. In addition to the bidirectional communication connection, the intelligent circuit breaker 300 and the controller 200 also have an electrical connection, and the specific type of the electrical connection is a weak current connection.

[0076] According to the intelligent backup power system provided in the embodiment of the present application, the structure of the intelligent backup power system can be further simplified by integrating the controller and the switching power supply.

[0077] In some embodiments, the bidirectional communication connection between the smart circuit breaker 300 and the controller 200 includes a wired connection and / or a wireless connection.

[0078] In actual implementation, the communication modules included in the smart circuit breaker 300 and the controller 200 may both include a wired communication unit. The wired communication unit included in the smart circuit breaker 300 and the wired communication unit included in the controller 200 may perform bidirectional wired communication.

[0079] In some embodiments, as Figure 4 and Figure 5 As shown, the communication modules included in the smart circuit breaker 300 and the controller 200 may each include a wireless communication unit 320. The wireless communication unit 320 included in the smart circuit breaker 300 and the wireless communication unit 320 included in the controller 200 may perform bidirectional wireless communication.

[0080] In some embodiments, the wireless communication unit 320 may perform wireless communication based on at least one of wireless communication technologies such as Wi-Fi and Bluetooth.

[0081] It is understandable that Figure 2 and Figure 3 In the embodiment, the bidirectional communication connection between the intelligent circuit breaker 300 and the controller 200 is a wired connection; Figure 4 and Figure 5 In the embodiment, the bidirectional communication connection between the intelligent circuit breaker 300 and the controller 200 is a wireless connection.

[0082] According to the intelligent backup power system provided in the embodiment of the present application, the reliability of controlling the on and off of the intelligent circuit breaker can be improved by establishing a wired connection between the intelligent circuit breaker and the controller, and the internal wiring can be further reduced and the structure can be simplified by establishing a wireless connection between the intelligent circuit breaker and the controller.

[0083] In some embodiments, the bidirectional communication connection between the smart circuit breaker 300 and the controller 200 includes a connection via a communication bus.

[0084] In actual implementation, the intelligent circuit breaker 300 and the controller 200 may be connected via a communication bus to perform bidirectional wired communication.

[0085] In some embodiments, the communication bus may include an EIA-485 bus or a CAN (Controller Area Network) bus.

[0086] According to the intelligent backup power system provided in the embodiment of the present application, the intelligent circuit breaker and the controller are connected through a communication bus, which has higher flexibility, lower cost, easier compatibility, easier system expansion and upgrade, easier diagnosis and maintenance, and can reduce costs.

[0087] In some embodiments, the bidirectional communication connection between the smart circuit breaker 300 and the controller 200 is also used to transmit the overload protection threshold of the smart circuit breaker 300 from the controller 200 to the smart circuit breaker 300 .

[0088] In actual implementation, the controller 200 can send the overload protection threshold of the smart circuit breaker 300 to any smart circuit breaker 300 based on the two-way communication connection between the controller 200 and the smart circuit breaker 300, and adjust the overload protection threshold of the smart circuit breaker 300 through communication, so that the smart circuit breaker 300 changes its own overload protection threshold to the value sent by the controller 200.

[0089] In some embodiments, the overload protection threshold value sent by the controller 200 to the smart circuit breaker 300 can be determined according to the power of the power supply or load connected to the port where the smart circuit breaker 300 is provided, so as to ensure that the above-mentioned power supply or load will not be overloaded after being connected to the port where the smart circuit breaker 300 is provided.

[0090] It should be noted that conventional circuit breakers use thermal magnetic protection for overload protection, using a purely mechanical structure to implement protection action, so the overload protection threshold is not adjustable. Intelligent circuit breakers are internally controlled by chips, and setting different overload protection thresholds can achieve protection functions under different currents. In some embodiments, using intelligent circuit breakers, the overload protection threshold can range from (0.5 to 1) times the rated current.

[0091] According to the intelligent backup power system provided in the embodiment of the present application, by transmitting the overload protection threshold of the intelligent circuit breaker from the controller to the intelligent circuit breaker, the overload protection threshold of the intelligent circuit breaker can be flexibly adjusted as needed, and the port provided with the intelligent circuit breaker can be connected to power supplies or loads of different power sizes as needed. Power supplies or loads of different power / capacity can be flexibly connected to the port provided with the intelligent circuit breaker, and matching of overload protection can be achieved.

[0092] In some embodiments, the bidirectional communication connection between the smart circuit breaker 300 and the controller 200 is also used to transmit a second instruction from the controller 200 to the smart circuit breaker 300; the second instruction is used to control the opening and closing of the leakage current protection function of the smart circuit breaker 300.

[0093] In actual implementation, the smart circuit breaker 300 has a leakage current protection function. The controller 200 can, through a communication connection with any smart circuit breaker 300, issue a second instruction to the smart circuit breaker 300 to enable / disable the leakage current protection function of the smart circuit breaker 300. The second instruction can include two types: a second instruction for enabling (i.e., turning on) the leakage current protection function of the smart circuit breaker 300, and a second instruction for disabling (i.e., turning off) the leakage current protection function of the smart circuit breaker 300.

[0094] When the intelligent circuit breaker 300 receives the second instruction sent by the controller 200, it can respond accordingly to enable or disable its own leakage current protection function.

[0095] In some embodiments, the second instruction may be sent from a host computer to the controller 200 .

[0096] It should be noted that whether the controller 200 issues the second instruction and the type of the second instruction issued may depend on the load or power source to be connected to the port equipped with the smart circuit breaker 300. If the port needs to be connected to an inverter, the leakage current protection function of the smart circuit breaker 300 can be disabled to avoid or reduce the possibility of false triggering of the leakage current protection. If the port needs to be connected to other loads or power sources, the leakage current protection function of the smart circuit breaker 300 can be enabled, thereby achieving flexible use of the port and enabling multiple uses.

[0097] According to the intelligent backup power system provided in the embodiment of the present application, the intelligent circuit breaker responds to the second instruction issued by the controller to realize the leakage current protection function of the intelligent circuit breaker, so that the port provided with the intelligent circuit breaker can be connected to different types of loads or power sources, which can improve the applicability of the port provided with the intelligent circuit breaker and the flexibility of using the port.

[0098] In some embodiments, the bidirectional communication connection between the smart circuit breaker 300 and the controller 200 is also used to transmit the setting value and / or protection value of the leakage current protection function of the smart circuit breaker 300 from the controller 200 to the smart circuit breaker 300 .

[0099] In actual implementation, the setting value and / or protection value of the leakage current protection function of the intelligent circuit breaker 300 can also be set through the controller 200 in a communication manner.

[0100] In some embodiments, the controller 200 can send the leakage current protection function parameters of any smart circuit breaker 300 to the smart circuit breaker 300 based on a bidirectional communication connection with the smart circuit breaker 300, and adjust the leakage current protection function parameters of the smart circuit breaker 300 through communication, so that the smart circuit breaker 300 changes its own leakage current protection function parameters to the values ​​sent by the controller 200. In some embodiments, the leakage current protection function parameters may include a setting value and / or a protection value of the leakage current protection function.

[0101] In some embodiments, the setting value and / or protection value of the leakage current protection function sent by the controller 200 to the smart circuit breaker 300 can be determined based on the protection target of the leakage current protection function to accommodate different protection requirements. For example, if the leakage current protection function is primarily used to prevent electric shock to the load at the back end, the protection value of the leakage current protection function can be adjusted or set to 30mA; if the leakage current protection function is primarily used to prevent electrical fires at the load at the back end, the protection value of the leakage current protection function can be adjusted or set to 200-500mA.

[0102] According to the intelligent backup power system provided in the embodiment of the present application, by transmitting the setting value and / or protection value of the leakage current protection function of the intelligent circuit breaker from the controller to the intelligent circuit breaker, the setting value and / or protection value of the leakage current protection function of the intelligent circuit breaker can be flexibly adjusted as needed, and can be compatible with different protection requirements.

[0103] In some embodiments, the bidirectional communication connection between the smart circuit breaker 300 and the controller 200 is also used to transmit feedback information of the first instruction from the smart circuit breaker 300 to the controller 200; the feedback information of the first instruction is used to indicate the state of the smart circuit breaker 300 after executing the first instruction.

[0104] In actual execution, after responding to the received first instruction and executing the first instruction, the intelligent circuit breaker 300 can obtain its own status through self-test or other means, and obtain information indicating its status after executing the first instruction as feedback information for the first instruction. After obtaining the feedback information for the first instruction, the intelligent circuit breaker 300 can report the feedback information for the first instruction to the controller 200 based on the bidirectional communication connection between the intelligent circuit breaker 300 and the controller 200, so that the controller 200 can be informed of the status of the intelligent circuit breaker 300.

[0105] It is understandable that, based on the state of the smart circuit breaker 300 and the electrical parameters reported by the smart circuit breaker 300 , the controller 200 may determine whether to issue a new first instruction to the smart circuit breaker 300 and the type of the new first instruction.

[0106] According to the intelligent backup power system provided in the embodiment of the present application, by transmitting feedback information indicating the status of the intelligent circuit breaker after executing the first instruction from the intelligent circuit breaker to the controller, the controller can obtain the status of the intelligent circuit breaker, thereby being able to issue the first instruction more accurately, reduce errors, and improve the stability and safety of the operation of the intelligent backup power system.

[0107] In some embodiments, the bidirectional communication connection between the smart circuit breaker 300 and the controller 200 is also used to transmit alarm information from the smart circuit breaker 300 to the controller 200; the alarm information is generated when the smart circuit breaker 300 is disconnected due to a fault in the smart backup power system.

[0108] In actual implementation, if a short circuit or other fault occurs in the intelligent backup power system, the intelligent circuit breaker 300 can automatically trip and switch from the closed state to the open state. In this case, the intelligent circuit breaker 300 can report the alarm information corresponding to the fault to the controller 200 based on the bidirectional communication connection between the intelligent circuit breaker 300 and the controller 200, so that the controller 200 can be informed of the status of the intelligent circuit breaker 300 and the fault of the intelligent backup power system.

[0109] According to the intelligent backup power system provided in the embodiment of the present application, by transmitting the alarm information generated by the intelligent circuit breaker when it is disconnected due to a fault in the intelligent backup power system from the intelligent circuit breaker to the controller, the controller can obtain the status of the intelligent circuit breaker and the fault of the intelligent backup power system, so that it can issue the first instruction more accurately, reduce errors, and improve the stability and safety of the operation of the intelligent backup power system.

[0110] In some embodiments, as Figures 2 to 5 As shown, the intelligent backup power system further includes: at least one ordinary load port 230; the ordinary load port 230 is used to be electrically connected to an ordinary load; the intelligent port 220 is provided with an ordinary circuit breaker 330;

[0111] The intelligent circuit breaker 300 provided at the grid input port 210 is electrically connected to the ordinary circuit breaker 330 provided at the ordinary load port 230 .

[0112] In actual implementation, the intelligent backup power system may further include at least one common load port 230. Each common load port 230 may be provided with a common circuit breaker 330. The common circuit breaker 330 is a conventional circuit breaker used in the related art and is not an intelligent circuit breaker.

[0113] Ordinary load and controllable load are relative concepts. Ordinary load is the load that cannot be automatically or remotely controlled when it is connected to and exited from the intelligent backup power system.

[0114] In some embodiments, when the grid input port 210 is provided with an intelligent circuit breaker 300 , the intelligent circuit breaker 300 and the common circuit breaker 330 may be electrically connected, specifically, a strong electrical connection.

[0115] According to the intelligent backup power system provided in the embodiment of the present application, an ordinary circuit breaker is set through the ordinary load port to meet the demand for accessing ordinary loads.

[0116] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0117] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

[0118] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0119] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An intelligent backup power system, characterized in that: include: A controller, a grid input port, at least one smart port and a switching power supply; the grid input port is used to be electrically connected to the grid; the smart port is used to be electrically connected to the controllable load; The grid input port is provided with an intelligent circuit breaker and / or at least one of the at least one intelligent port is provided with an intelligent circuit breaker; The switching power supply is electrically connected to the intelligent circuit breaker to supply power to the intelligent circuit breaker; The intelligent circuit breaker provided at the grid input port is electrically connected to the intelligent circuit breaker provided at the intelligent port; The intelligent circuit breaker is connected to the controller for bidirectional communication so as to transmit electrical data of the internal circuit of the intelligent backup power system from the intelligent circuit breaker to the controller, and to transmit a first instruction from the controller to the intelligent circuit breaker; the first instruction is used to control the on and off of the intelligent circuit breaker.

2. The intelligent backup power system according to claim 1, characterized in that: The controller is integrated with the switching power supply.

3. The intelligent backup power system according to claim 1, characterized in that: The bidirectional communication connection between the intelligent circuit breaker and the controller includes a wired connection and / or a wireless connection.

4. The intelligent backup power system according to claim 3, characterized in that: The bidirectional communication connection between the intelligent circuit breaker and the controller includes a connection via a communication bus.

5. The intelligent backup power system according to claim 1, characterized in that: The bidirectional communication connection between the intelligent circuit breaker and the controller is also used to transmit the overload protection threshold of the intelligent circuit breaker from the controller to the intelligent circuit breaker.

6. The intelligent backup power system according to claim 1, characterized in that: The bidirectional communication connection between the intelligent circuit breaker and the controller is also used to transmit a second instruction from the controller to the intelligent circuit breaker; the second instruction is used to control the opening and closing of the leakage current protection function of the intelligent circuit breaker.

7. The intelligent backup power system according to claim 6, characterized in that: The bidirectional communication connection between the intelligent circuit breaker and the controller is also used to transmit the setting value and / or protection value of the leakage current protection function of the intelligent circuit breaker from the controller to the intelligent circuit breaker.

8. The intelligent backup power system according to claim 1, characterized in that: The bidirectional communication connection between the intelligent circuit breaker and the controller is also used to transmit feedback information of the first instruction from the intelligent circuit breaker to the controller; the feedback information of the first instruction is used to indicate the state of the intelligent circuit breaker after executing the first instruction.

9. The intelligent backup power system according to claim 1, characterized in that: The bidirectional communication connection between the intelligent circuit breaker and the controller is also used to transmit alarm information from the intelligent circuit breaker to the controller; the alarm information is generated when the intelligent circuit breaker is disconnected due to a fault in the intelligent backup power system.

10. The intelligent backup power system according to any one of claims 1 to 9, characterized in that: Also includes: At least one common load port; the common load port is used to be electrically connected to a common load; the smart port is provided with a common circuit breaker; The intelligent circuit breaker provided at the grid input port is electrically connected to the ordinary circuit breaker provided at the ordinary load port.

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