Devices for controlling shutoff modules, energy storage systems, and microgrid systems

Abstract

Embodiments of the present invention provide a device for controlling a tripping module, an energy storage system, and a microgrid system, the tripping module being connected between the energy storage system and a power system, wherein when the tripping module is in a conductive state, the path for transmitting electrical energy between the energy storage system and the power system is conductive, and when the tripping module is in a disconnected state, the path for transmitting electrical energy between the energy storage system and the power system is disconnected, the device includes a control circuit, the control circuit includes a switch module and a tripping device, the control circuit is configured to drive the tripping module via the tripping device to change from a conductive state to a disconnected state when the state of the switch module changes. The device for controlling a tripping module, the energy storage system, and the microgrid system provided in embodiments of the present invention can immediately and effectively control the disconnection of the tripping module.

Description

Technical Field

[0001] Cross - reference to Related Applications This application claims priority to a patent application with application number 202310664519.9 and title "Device for Controlling a Disconnection Module, Energy Storage System and Microgrid System" filed with the China National Intellectual Property Administration on June 6, 2023, and all its contents are incorporated herein by reference.

[0002] This application relates to the field of new energy technologies, particularly to a device for controlling a disconnection module, an energy storage system, and a microgrid system.

Background Art

[0003] With the continuous development of new energy technologies, more and more energy storage systems are connected to the power grid. By connecting the energy storage system to the power grid, the randomly fluctuating energy of renewable energy systems such as wind power generation and solar power generation can be smoothly transmitted to the power grid, reducing the impact of the power fluctuations of the renewable energy system on the power grid, and improving the stability and reliability of the power grid.

[0004] Generally, a circuit breaker is connected between the energy storage system and the power grid. When a failure occurs in the energy storage system and / or the power grid, the circuit breaker can be disconnected, thereby quickly removing the failure, reducing the spread of the failure, and reducing the impact of the failure on the equipment in the energy storage system and the power grid.

[0005] Therefore, when a failure occurs in the energy storage system and / or the power grid, how to quickly and effectively disconnect the circuit breaker is one of the urgent problems to be solved.

Summary of the Invention

[0006] Embodiments of the present invention provide a device for controlling a shut-off module, an energy storage system, and a microgrid system that can immediately and effectively control the disconnection of the shut-off module.

[0007] According to a first embodiment, a device for controlling a tripping module is provided, the tripping module being connected between an energy storage system and a power system, wherein when the operating state of the tripping module is in a conduction state, the path for transmitting electrical energy between the energy storage system and the power system is in a conduction state, and when the operating state of the tripping module is in a disconnection state, the path for transmitting electrical energy between the energy storage system and the power system is in a disconnection state, the device including a control circuit, the control circuit including a switch module and a tripping device, the control circuit being configured to drive the tripping module via the tripping device to change from a conduction state to a disconnection state when the state of the switch module changes.

[0008] In the embodiments of the present invention, by changing the operating state of a switch in the control circuit, the disconnection of the interruption module between the energy storage system and the power system can be controlled immediately and effectively, thereby interrupting energy transmission between the energy storage system and the power system and reducing the spread of failure in the event of a failure in the energy storage system and / or the power system. On the other hand, the control circuit enables remote opening of the interruption module, improving the convenience of opening the interruption module.

[0009] In one possible embodiment, the control circuit includes a first circuit, a second circuit, and a third circuit, the first circuit including a coil and a switch module of a first electromagnetic mechanism connected in series with each other, the switch module including a first switch and / or a second switch, the first switch being an automatic control switch, the second switch being a manual control switch, the second circuit including contacts of a first electromagnetic mechanism and a coil of a second electromagnetic mechanism connected in series with each other, and the third circuit including contacts of a second electromagnetic mechanism and a control mechanism for a tripping device connected in series with each other, the operating mechanism of the tripping device being connected to a tripping module.

[0010] In the embodiment of the present invention, when the state of the switch module in the first circuit changes, the first electromagnetic mechanism is used to control the change in the energized state of the second circuit, and the second electromagnetic mechanism is used to control the change in the energized state of the third circuit. Furthermore, the externally applied signal to the control mechanism of the tripping device in the third circuit is changed to drive the operating mechanism of the tripping device and activate it, thereby disconnecting the tripping module. In this way, the tripping module can be disconnected immediately and effectively.

[0011] In one possible embodiment, the second circuit further includes a third switch, which is connected in series with the contacts of the first electromagnetic mechanism and the coil of the second electromagnetic mechanism, and the second and third switches are configured such that pressing one button changes the state of the second and third switches simultaneously, and the states of the second and third switches are the same.

[0012] A redundant third switch is provided in the second circuit, and if other devices in the control circuit, such as the first electromagnetic mechanism, fail to operate properly, the third switch can change the state from energized to disconnected, thereby immediately and effectively driving the disconnection module to disconnect.

[0013] In one possible embodiment, the control circuit is configured such that when the state of the switch module changes from a powered state to a disconnected state, the tripping device drives the tripping module to change it from a powered state to a disconnected state.

[0014] In the embodiment of the present invention, if the switch module of the control circuit is disconnected, the tripping device can be used to drive and disconnect the tripping module, allowing the tripping module to be disconnected immediately and effectively.

[0015] In one possible embodiment, the device further includes a first controller for controlling a first switch to change from an energized state to an disconnected state when it detects that a failure has occurred in the energy storage system and / or power system.

[0016] In the embodiment of the present invention, when a failure occurs in the energy storage system and / or power system, the first controller automatically controls the disconnection of the first switch, thereby immediately and effectively disconnecting the interruption module, narrowing the scope of the failure's spread, and protecting the equipment in the energy storage system and power system as much as possible.

[0017] In one possible embodiment, a first controller is used to adjust a first input signal in a sensing mechanism of a first electrical control device to control the contacts of the first electrical control device to change from an energized state to an disconnected state, the contacts of the first electrical control device being a first switch, and the first input signal including current, voltage, impedance, frequency, temperature, pressure, or optical signal.

[0018] In the embodiment of the present invention, if a failure occurs in the energy storage system and / or power system, the first controller can adjust the input signal of the detection mechanism of the first electrical control device, thereby disconnecting the contacts of the first electrical control device and achieving the objective of disconnecting the first switch.

[0019] In one possible embodiment, the first circuit further includes a coil of a third electromagnetic mechanism connected in parallel with the coil of the first electromagnetic mechanism, and the device further includes a second controller used to determine that a fault has occurred in the energy storage system and / or power system based on a change in the state of the contacts of the third electromagnetic mechanism.

[0020] In the embodiment of the present invention, the second controller can be used to immediately and accurately determine, based on the change in the state of the contacts of the third electromagnetic mechanism, whether a fault has occurred in the energy storage system and / or power system.

[0021] In one possible embodiment, the second circuit further includes a fourth switch, which is connected in series with the contacts and tripping device control mechanism of a first electromagnetic mechanism, the first electromagnetic mechanism being a normally open electromagnetic mechanism, and the device further includes a third controller for controlling the fourth switch to change from an energized state to an disconnected state when it determines that a fault has occurred in the energy storage system and / or power system.

[0022] By providing a fourth switch in the second circuit, if some other devices in the control circuit, such as the first electromagnetic mechanism, cannot be properly disconnected, the redundantly provided fourth switch can be disconnected, thereby interrupting the coil of the second electromagnetic mechanism in the second circuit, driving a change in the contacts of the second electromagnetic mechanism in the third circuit, changing the externally applied signal to the tripping device's control mechanism, and moving the tripping device's motion mechanism to drive and disconnect the tripping module. In this way, the tripping module can be disconnected immediately and efficiently.

[0023] In one possible embodiment, a third controller is used to adjust a second input signal in the sensing mechanism of a second electrical control device to control the contacts of the second electrical control device to change from an energized state to an disconnected state, the contacts of the second electrical control device being a fourth switch, and the second input signal including current, voltage, impedance, frequency, temperature, pressure, or optical signal.

[0024] In an embodiment of the present application, the input signal of the detection mechanism of the second electric control device can be adjusted by the third controller, thereby disconnecting the contacts of the second electric control device to achieve the purpose of disconnecting the fourth switch.

[0025] In a possible embodiment, when the switch module changes from the energized state to the disconnected state, the control circuit is configured to change the contacts of the second electromagnetic mechanism from the disconnected state to the conductive state in order to change the cutoff module from the energized state to the disconnected state.

[0026] In an embodiment of the present application, when the switch module is disconnected, the contacts of the second electromagnetic mechanism in the control circuit are energized accordingly, and the cutoff module can be driven by using the tripping device to be disconnected immediately and effectively.

[0027] In a possible embodiment, the third circuit further includes a fifth switch. The fifth switch is connected in series to the contacts of the second electromagnetic mechanism and the control mechanism of the tripping device. The device further includes a fourth controller for controlling the fifth switch to change from the disconnected state to the energized state in order to change the cutoff module from the conductive state to the disconnected state when the contacts of the second electromagnetic mechanism change from the disconnected state to the energized state.

[0028] In an embodiment of the present application, when the contacts of the second electromagnetic mechanism are energized, that is, when a fault occurs in the energy storage system and / or the power system, the energization of the fifth switch can be controlled via the fourth controller, and the conduction of the third circuit can be freely controlled, thereby enabling the disconnection of the cutoff module to be freely controlled.

[0029] In a possible embodiment, when the contact of the second electromagnetic mechanism changes from the disconnected state to the energized state, the fourth controller is used to determine the information of the current or power between the energy storage system and the power system. When the current or power between the energy storage system and the power system is below a preset threshold, the fourth controller controls the fifth switch to change from the disconnected state to the energized state. Or, when the current or power between the energy storage system and the power system is above the preset threshold, the fourth controller controls to reduce the current or power between the energy storage system and the power system, and controls the fifth switch to change from the disconnected state to the energized state after a preset time has elapsed since the contact of the second electromagnetic mechanism changed from the disconnected state to the energized state.

[0030] In an embodiment of the present application, when the contact of the second electromagnetic mechanism is energized, the energization of the five switches can be controlled by referring to the magnitude of the current or power between the energy storage system and the power system. In this way, when the current or power between the energy storage system and the power system is small, the fifth switch can be controlled to be energized immediately. When the current or power between the energy storage system and the power system is large, first, the current or power between the energy storage system and the power system is controlled to be reduced, and then the fifth switch can be controlled to be energized. Thereby, the impact of the large current on the energy storage system can be reduced, and the performance and service life of the energy storage system can be improved.

[0031] In a possible embodiment, the fourth controller is used to adjust the third input signal in the detection mechanism of the third electric control device to control the contact of the third electric control device to change from the disconnected state to the energized state. The contact of the third electric control device is the fifth switch, and the third input signal includes current, voltage, impedance, frequency, temperature, pressure or optical signal.

[0032] In the embodiment of the present invention, the fourth controller can adjust the input signal of the detection mechanism of the third electrical control device, thereby disconnecting the contacts of the third electrical control device, which serves the purpose of disconnecting the fifth switch and thus disconnecting the circuit breaker module.

[0033] In one possible embodiment, the second controller is also used to transmit instruction information to the first controller if it determines that a failure has occurred in the energy storage system and / or power system.

[0034] In the embodiment of the present invention, the second controller can transmit instruction information to the first controller that a failure has occurred in the energy storage system and / or the power system, thereby enabling the first controller to determine whether to manually switch the switch or to automatically switch the switch when a failure occurs in the energy storage system and / or the power system.

[0035] In one possible embodiment, the device further includes a fifth controller used to control a DC switch in the energy storage system to change it from energized to disconnected when the disconnection module is disconnected.

[0036] In the embodiment of the present invention, when the disconnection module is in the disconnected state, the DC switch can be controlled to disconnect it, thereby reducing the impact on the energy storage system of arc drawing problems caused by the disconnection of the DC switch load.

[0037] In one possible embodiment, the second controller and the third controller are the same controller.

[0038] In the embodiment of the present invention, the second controller and the third controller are the same controller, enabling the integration of fault signal input (determining that a fault has occurred in the energy storage system and / or power system) and fault signal output (disconnecting the fourth switch), improving the efficiency of fault signal output and facilitating immediate disconnection of the interruption module. At the same time, the fault signal output can be controlled by the fault input signal, and redundant control for the second circuit can be performed by the fourth switch, enabling accurate and effective disconnection of the interruption module.

[0039] According to a second embodiment, an energy storage system is provided which includes a battery and a device for controlling a disconnection module in either the first embodiment or any one of the possible realizations thereof, wherein the disconnection module is connected between the energy storage system and a power system.

[0040] According to a third embodiment, a microgrid system is provided which includes an energy storage system, a power system, a disconnection module, and a device for controlling the disconnection module in any one of the first embodiments described above. [Brief explanation of the drawing]

[0041] [Figure 1] This is a schematic diagram of the architecture of a microgrid system according to an embodiment of the present invention. [Figure 2] This is a schematic diagram of the structure of a device for controlling a circuit breaker according to an embodiment of the present invention. [Figure 3] This is a schematic diagram of the mechanism of a device for controlling a circuit breaker according to an embodiment of the present invention. [Figure 4] This is a schematic diagram of the structure of a device for controlling a circuit breaker according to an embodiment of the present invention. [Figure 5] This is a schematic diagram of the structure of a device for controlling a circuit breaker according to an embodiment of the present invention. [Figure 6] This is a schematic diagram of a partial structure of a device for controlling a circuit breaker according to an embodiment of the present invention. [Figure 7]This is a schematic diagram of a partial structure of a device for controlling a circuit breaker according to an embodiment of the present invention. [Figure 8] This is a schematic diagram of the structure of a device for controlling a circuit breaker according to an embodiment of the present invention. [Figure 9] This is a schematic diagram of a partial structure of a device for controlling a circuit breaker according to an embodiment of the present invention. [Figure 10] This is a schematic diagram of the structure of a device for controlling a circuit breaker according to an embodiment of the present invention. [Figure 11] This is a schematic diagram of a partial structure of a device for controlling a circuit breaker according to an embodiment of the present invention. [Figure 12] This is a schematic diagram of the structure of a device for controlling a circuit breaker according to an embodiment of the present invention. [Figure 13] This is a schematic diagram of the structure of a device for controlling a circuit breaker according to an embodiment of the present invention. [Figure 14] This is a schematic block diagram of an energy storage system according to an embodiment of the present invention. [Figure 15] This is a schematic block diagram of a microgrid system according to an embodiment of the present invention. [Modes for carrying out the invention]

[0042] Embodiments of the present application will be described in more detail below with reference to the drawings and examples. The detailed description of the following embodiments and drawings are used to illustrate the principles of the present application, but are not intended to limit the scope of the present application, and the present application is not limited to the embodiments described.

[0043] Unless otherwise defined, all technical and scientific terms used in this Application have the same meaning as those generally understood by those skilled in the art to which this Application pertains. The terms used in the Application's Specification are intended solely to describe specific embodiments and are not intended to limit this Application. The terms “includes” and “have,” and their synonyms, in the Specification and Claims of this Application and in the description of the above drawings are intended to be non-exclusive. Terms such as “first,” “second,” etc., in the Specification and Claims of this Application or in the above drawings are used to distinguish different subjects and are not used to describe a specific order or hierarchical relationship.

[0044] The term "and / or" simply describes the relationship between related objects, indicating that three types of relationships are possible. For example, A and / or B can represent three situations: A existing alone, A and B existing simultaneously, or B existing alone. In this specification, the symbol " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0045] It should be further explained in this application that, unless otherwise explicitly provided and limited, the terms “connected” and “connected” should be understood in a broad sense. For example, they may be directly connected or indirectly connected via an intermediate medium. Furthermore, they may be electrical or mechanical connections. Those skilled in the art will be able to understand the specific meaning of these terms in this application depending on the specific circumstances.

[0046] References to “Examples” in this specification mean that certain features, structures, or properties described in relation to the Examples may be included in at least one Example of the Application. Where the term “Examples” appears elsewhere in this specification, it does not necessarily refer to the same Example, nor does it refer to an Example that is mutually exclusive, independent, or substitutable with other Examples. Those skilled in the art will understand, both explicitly and implicitly, that the Examples described herein can be combined with other Examples.

[0047] As new energy technologies continue to develop, more and more energy storage systems are being connected to the power grid. By connecting energy storage systems to the power grid, the randomly fluctuating energy from renewable energy systems such as wind power and solar power can be smoothly transmitted to the power grid, reducing the impact of power fluctuations from renewable energy systems on the power grid and improving the stability and reliability of the power grid.

[0048] Generally, a circuit breaker is connected between an energy storage system and the power grid. In the event of a fault in the energy storage system and / or the power grid, the circuit breaker can be disconnected, thereby quickly eliminating the fault, reducing the spread of the fault, and minimizing the impact of the fault on equipment in the circuit.

[0049] In view of this, embodiments of the present application provide a device for controlling a tripping module, an energy storage system and a microgrid system, the tripping module being connected between the energy storage system and a power system, wherein when the operating state of the tripping module is a conduction state, the path for transmitting electrical energy between the energy storage system and the power system is a conduction state, and when the operating state of the tripping module is a disconnection state, the path for transmitting electrical energy between the energy storage system and the power system is a disconnection state, the device including a control circuit, the control circuit including a switch module and a tripping device, the control circuit being configured to drive the tripping module via the tripping device to change from a conduction state to a disconnection state when the state of the switch module changes.

[0050] In the embodiments of the present invention, by changing the operating state of a switch in the control circuit, the disconnection of the interruption module between the energy storage system and the power system can be controlled immediately and effectively, thereby interrupting energy transmission between the energy storage system and the power system and reducing the spread of failure in the event of a failure in the energy storage system and / or the power system. On the other hand, the control circuit enables remote opening of the interruption module, improving the convenience of opening the interruption module.

[0051] Figure 1 is a schematic diagram of the architecture 100 of a microgrid system according to an embodiment of the present application.

[0052] The architecture 100 includes an energy storage system 110, a power system 120, a disconnection module 130, a converter module 140, and an energy management unit 150.

[0053] A converter module 140 is connected between the energy storage system 110 and the power system 120. The converter module 140 may be a bidirectional converter module, such as a power conversion system (PCS), which converts between alternating current and direct current and is used to control energy transmission between the energy storage system 110 and the power system 120.

[0054] A disconnection module 130 is connected between the energy storage system 110 and the power system 120. When the disconnection module 130 is disconnected, the electrical connection between the energy storage system 110 and the power system 120 is severed, and energy transmission between the energy storage system 110 and the power system 120 becomes impossible.

[0055] In some embodiments of the present invention, the interruption module 130 may include a circuit breaker or a switch, etc.

[0056] In some embodiments of the present invention, the interruption module 130 may be connected between the energy storage system 110 and the converter module 140. Selectively, the interruption module 130 may be connected between the converter module 140 and the power system 120.

[0057] In some embodiments of the present application, the power system 120 may include a power grid such as a regional power grid, a distribution power grid, or a power supply grid.

[0058] In some embodiments of the present invention, the power system 120 may include a load. For example, the energy storage system 110 can transmit energy to and from an AC load via a converter module 140.

[0059] The energy management unit 150 can acquire information from at least one of the following: the energy storage system 110, the power system 120, or the converter module 140, and perform power control and energy management. For example, the energy management unit 150 can acquire the rated power and rated capacity of the energy storage system. For example, the energy management unit 150 can acquire the rated power and required energy of the power grid.

[0060] In the embodiment of the present invention, the energy storage system 110 may include at least one battery. The energy storage system 110 is equipped with a battery management system (BMS) to monitor battery status information such as the state of charge (SOC), temperature, and current of the battery. The energy storage system 110 transmits this battery status information to an energy management unit 140.

[0061] In some embodiments of the present invention, the energy storage system 110 may be connected to an energy generation system, and the energy generation system may transport energy to the energy storage system 110. Optionally, the energy generation system may include renewable energy systems such as wind power systems, solar power systems, or tidal power systems. Optionally, the energy generation system may include nuclear power systems, thermal power systems, or hydroelectric power systems.

[0062] Figure 2 is a schematic diagram of a device for controlling a shut-off module according to an embodiment of the present application.

[0063] The disconnection module 130 is connected between the energy storage system 110 and the power system 120. When the disconnection module 130 is in a conductive state, the path for transmitting electrical energy between the energy storage system 110 and the power system 120 is conductive. When the disconnection module 130 is in a disconnected state, the path for transmitting electrical energy between the energy storage system 110 and the power system 120 is disconnected.

[0064] The device 200 for controlling the interruption module 130 includes a control circuit 210, which includes a switch module K and a tripping device YR. The control circuit 210 is configured to drive the interruption module 130 by the tripping device YR when the state of the switch module K changes, thereby changing it from a conductive state to an interrupted state.

[0065] The state of switch module K includes both the disconnected state and the energized state.

[0066] In some embodiments of the present invention, the interruption module 130 may include a circuit breaker or a switch, etc.

[0067] In some embodiments of the present application, the tripping device YR may include an undervoltage tripping device, an overvoltage tripping device, an electromagnetic tripping device, or a voltage tripping device (shunt-trip device).

[0068] When an externally applied signal acts on the control mechanism of the tripping device YR, it drives the tripping device YR to activate its operating mechanism, which in turn drives the tripping module 130 to disconnect the circuit.

[0069] When the state of the switch module K in the control circuit changes, the applied information passing through the control mechanism of the tripping device YR changes, which in turn drives the operating mechanism of the tripping device YR to operate, thereby changing the tripping module 130 from a conductive state to a disconnected state.

[0070] A change in the state of switch module K may mean that switch module K changes from a powered state to a disconnected state (or switch module K is disconnected), or that switch module K changes from a disconnected state to a powered state (or switch module K becomes powered).

[0071] In the embodiment of the present invention, by changing the operating state of switch K in the control circuit 210, the disconnection of the interruption module 130 between the energy storage system 110 and the power system 120 can be controlled immediately and effectively, thereby interrupting energy transmission between the energy storage system 110 and the power system 120 and reducing the spread of failure in the event of a failure in the energy storage system 110 and / or the power system 120. On the other hand, the control circuit 210 enables remote opening of the interruption module 130, improving the convenience of opening the interruption module 130.

[0072] In some embodiments of the present application, the control circuit 210 may include a first circuit, as shown in Figure 3. The first circuit includes a tripping device YR and a switch module K connected in series with each other, the switch module K includes a first switch K1 and / or a second switch K2, the first switch K1 being an automatic control switch and the second switch K2 being a manual control switch.

[0073] In this embodiment, when the state of the switch module K (first switch K1 and / or second switch K2) changes, the tripping device YR can drive the tripping module 130 to change it from a conductive state to a disconnected state.

[0074] For example, the first circuit includes a tripping device YR and a first switch K1. By automatically controlling the switch K1 to energize, the externally applied signal (e.g., current, voltage, etc.) to the control mechanism of the tripping device YR changes (for example, the voltage across the control mechanism of the undervoltage tripping device is lower than the rated voltage of the undervoltage tripping device), which drives the operating mechanism of the tripping device YR to operate, and drives the interruption module 130 to change from a conduction state to a disconnection state.

[0075] For example, the first circuit includes a tripping device YR and a second switch K2. By manually controlling switch K2 to energize, the externally applied signal (e.g., current, voltage, etc.) to the control mechanism of the tripping device YR changes (for example, both ends of the control mechanism of the voltage tripping device conduct and become energized), which drives the operating mechanism of the tripping device YR to operate, and drives the tripping module 130 to change from a conductive state to a disconnected state.

[0076] Furthermore, for example, the first circuit includes a tripping device YR, a first switch K1, and a second switch K2. By automatically controlling the first switch K1 to disconnect and / or manually controlling the second switch K2 to disconnect, the externally applied signal (e.g., current, voltage, etc.) to the control mechanism of the tripping device YR changes (e.g., the voltage across the control mechanism of the undervoltage tripping device is lower than the rated voltage of the undervoltage tripping device), which drives the operating mechanism of the tripping device YR to operate, and drives the interruption module 130 to change from a conduction state to a disconnection state.

[0077] In some embodiments of the present application, as shown in Figure 4, the control circuit 210 includes a first circuit and a second circuit.

[0078] The first circuit includes a coil of a first electromagnetic mechanism DC1 and a switch module K connected in series with each other, the switch module K includes a first switch K1 and / or a second switch K2, the first switch K1 being an automatic control switch and the second switch K2 being a manual control switch.

[0079] The second circuit includes the contacts of the first electromagnetic mechanism DC1 and the control mechanism of the tripping device YR, which are connected in series with each other, and the operating mechanism of the tripping device YR is connected to the tripping module 130.

[0080] In this embodiment, the switch module K may include only the first switch K1, or only the second switch K2, or both the first switch K1 and the second switch K2.

[0081] The electromagnetic mechanism may include a contactor, an electromagnetic relay, or a device having the function of a contactor or electromagnetic relay.

[0082] In this embodiment, a change in the state of the switch module K (first switch K1 and / or second switch K2) in the first circuit changes the energized / disconnected state of the coil of the first electromagnetic mechanism DC1 in the first circuit, which in turn changes the state of the contacts of the first electromagnetic mechanism DC1 in the second circuit. This changes the externally applied signal to the control mechanism of the tripping device YR in the second circuit, thereby driving the operating mechanism of the tripping device YR to operate it, and driving the tripping module 130 to change from a conductive state to a disconnected state. The state of the contacts of the first electromagnetic mechanism DC1 includes both a disconnected state and an energized state.

[0083] For example, the first circuit includes a coil of a first electromagnetic mechanism DC1 and a first switch K1 connected in series with each other. When the first switch K1 and / or the second switch K2 change from an open state to an open state, the coil of the first electromagnetic mechanism DC1 changes from an open state to an open state, and the state of the contacts of the first electromagnetic mechanism DC1 is also switched from open to an open state, which changes the externally applied signal to the control mechanism of the tripping device YR in the second circuit (for example, the coil of the voltage tripping device becomes conductive), activates the operating mechanism of the tripping device YR, and drives the tripping module 130 to change from an open state to an open state. The first electromagnetic mechanism DC1 is a normally open electromagnetic mechanism.

[0084] In a normally open electromagnetic mechanism, when the coil of the electromagnetic mechanism is disconnected, the contacts of the electromagnetic mechanism are disconnected, and when the coil of the electromagnetic mechanism is conductive, the contacts of the electromagnetic mechanism become energized.

[0085] For example, the first circuit includes a coil of a first electromagnetic mechanism DC1, a first switch K1, and a second switch K2 connected in series with each other. When the first switch K1 and / or the second switch K2 change from a live state to a disconnected state, the coil of the first electromagnetic mechanism DC1 changes from a conduction state to a disconnected state, and the state of the contacts of the first electromagnetic mechanism DC1 is also switched from disconnected to live, which changes the externally applied signal to the control mechanism of the tripping device YR in the second circuit (for example, the coil of the voltage tripping device becomes conduction), activates the operating mechanism of the tripping device YR, and drives the tripping module 130 to change from a live state to a disconnected state. The first electromagnetic mechanism DC1 is a normally closed electromagnetic mechanism.

[0086] In a normally closed electromagnetic mechanism, the contacts of the electromagnetic mechanism become energized when the coil of the electromagnetic mechanism is disconnected, and the contacts of the electromagnetic mechanism are disconnected when the coil of the electromagnetic mechanism becomes conductive.

[0087] In the embodiments of the present application, a change in the state of the switch or contact may mean that the state of the switch or contact changes from a conductive state to a disconnected state, i.e., the switch or contact is disconnected, or that the state of the switch or contact changes from a disconnected state to a conductive state, i.e., the switch or contact becomes energized. A change in the state of the circuit breaker module 130 from a conductive state to a disconnected state means that the circuit breaker module 130 is disconnected.

[0088] A change in the energized state of the coil of an electromagnetic mechanism means that the coil of the electromagnetic mechanism changes from an energized state to an interrupted state, that is, the coil of the electromagnetic mechanism is interrupted, or it means that the coil of the electromagnetic mechanism changes from an interrupted state to an energized state, that is, the coil of the electromagnetic mechanism becomes energized.

[0089] In the embodiment of the present invention, by changing the state of the first switch K1 and / or the second switch K2 in the first circuit, the change in the energized state of the second circuit is controlled in conjunction, thereby changing the externally applied signal to the control mechanism of the tripping device YR in the second circuit, driving the operating mechanism of the tripping device YR to activate it, and enabling immediate and effective control of the disconnection of the tripping module 130.

[0090] In some embodiments of the present application, as shown in Figure 5, the control circuit includes a first circuit, a second circuit, and a third circuit.

[0091] The first circuit includes a coil of a first electromagnetic mechanism DC1 and a switch module K connected in series with each other, the switch module K includes a first switch K1 and / or a second switch K2, the first switch K1 being an automatic control switch and the second switch K2 being a manual control switch.

[0092] The second circuit includes the contacts of the first electromagnetic mechanism DC1 and the coil of the second electromagnetic mechanism DC2, which are connected in series with each other.

[0093] The third circuit includes the contacts of the second electromagnetic mechanism DC2 and the control mechanism of the tripping device YR, which are connected in series with each other, and the operating mechanism of the tripping device YR is connected to the tripping module 130.

[0094] The switch module K may include only the first switch K1, or only the second switch K2, or both the first switch K1 and the second switch K2.

[0095] The electromagnetic mechanism may include a contactor, an electromagnetic relay, or a device having the function of a contactor or electromagnetic relay.

[0096] In this embodiment, a change in the state of the first switch K1 and / or the second switch K2 in the first circuit changes the energized / disconnected state of the coil of the first electromagnetic mechanism DC1 in the first circuit, which in turn changes the state of the contacts of the first electromagnetic mechanism DC1 in the second circuit, which in turn changes the energized / disconnected state of the coil of the second electromagnetic mechanism DC2 in the second circuit, which in turn changes the state of the contacts of the second electromagnetic mechanism DC2 in the third circuit, which in turn changes the externally applied signal to the control mechanism of the tripping device YR in the third circuit, which drives the operating mechanism of the tripping device YR to operate it and drives the tripping module 130 to change from a conductive state to a disconnected state.

[0097] For example, the first circuit includes a coil of a first electromagnetic mechanism DC1, a first switch K1, and a second switch K2 connected in series with each other. When the first switch K1 and / or the second switch K2 change from a conductive state to a disconnected state, the coil of the first electromagnetic mechanism DC1 in the first circuit changes from a conductive state to a disconnected state, the contact of the first electromagnetic mechanism DC1 in the second circuit also changes from a conductive state to a disconnected state, and furthermore, the coil of the second electromagnetic mechanism DC2 in the second circuit changes from a conductive state to a disconnected state, which in turn changes the contact of the second electromagnetic mechanism DC2 in the third circuit from a disconnected state to a conductive state, the externally applied signal to the control mechanism of the tripping device YR in the third circuit changes, activates the operating mechanism of the tripping device YR, drives the tripping module 130 and changes it from a conductive state to a disconnected state. The first electromagnetic mechanism DC1 is a normally open electromagnetic mechanism, and the second electromagnetic mechanism is a normally closed electromagnetic mechanism.

[0098] For example, the first circuit includes a coil of a first electromagnetic mechanism DC1 and a second switch K2 connected in series with each other. When the second switch K2 changes from an open state to an open state, the coil of the first electromagnetic mechanism DC1 in the first circuit changes from an open state to an open state, the contact of the first electromagnetic mechanism DC1 in the second circuit also changes from an open state to an open state, the coil of the second electromagnetic mechanism DC2 in the second circuit also changes from an open state to an open state, the contact of the second electromagnetic mechanism DC2 in the third circuit also changes from an open state to an open state, the applied information of the control mechanism of the tripping device YR in the third circuit changes, the operating mechanism of the tripping device YR is activated and drives the tripping module 130 to change from an open state to an open state. The first electromagnetic mechanism DC1 is a normally open electromagnetic mechanism, and the second electromagnetic mechanism is a normally open electromagnetic mechanism.

[0099] The state of the electromagnetic contacts includes both disconnected and energized states.

[0100] The type of the first electromagnetic mechanism DC1 may be a normally open or normally closed electromagnetic mechanism. The type of the second electromagnetic mechanism D2 may be a normally open or normally closed electromagnetic mechanism. The types of the first electromagnetic mechanism DC1 and the second electromagnetic mechanism DC2 can be determined according to the specific design of the control circuit 210.

[0101] In the embodiment of the present invention, when the state of the first switch K1 and / or the second switch K2 in the first circuit changes, the first electromagnetic mechanism DC1 is used to control the change in the energized state of the second circuit, and the second electromagnetic mechanism DC2 is used to control the change in the energized state of the third circuit, thereby changing the externally applied signal to the control mechanism of the tripping device YR in the third circuit, driving the operating mechanism of the tripping device YR to activate and disconnect the tripping module 130. In this way, the tripping module 130 can be disconnected immediately and effectively.

[0102] In some embodiments of the present invention, the second circuit includes a third switch K3 connected in series, and the second switch K2 and the third switch K3 are configured such that pressing a single button changes the state of the second switch K2 and the third switch K3 simultaneously, so that the states of the second switch K2 and the third switch K3 are the same.

[0103] As shown in Figure 5, the second circuit includes the contacts of the first electromagnetic mechanism DC1, the coil of the second electromagnetic mechanism DC2, and the third switch K3, all connected in series. The states of the second switch K2 and the third switch K3 can be changed simultaneously by pressing the emergency stop button SB.

[0104] In this embodiment, selectively, the second switch K2 and the third switch K3 are simultaneously switched from an energized state to an disconnected state.

[0105] Selectively, in this embodiment, the first electromagnetic mechanism DC1 may be a normally open electromagnetic mechanism. The second electromagnetic mechanism DC2 may be a normally closed electromagnetic mechanism or a normally open electromagnetic mechanism.

[0106] For example, the first circuit includes a coil of a first electromagnetic mechanism DC1 and a second switch K2 connected in series with each other. When the second switch K2 is switched from a conductive state to a disconnected state, the coil of the first electromagnetic mechanism DC1 in the first circuit changes from a conductive state to a disconnected state, the contact state of the first electromagnetic mechanism DC1 in the second circuit also changes from a conductive state to a disconnected state, the coil of the second electromagnetic mechanism DC2 in the second circuit changes from a conductive state to a disconnected state, which in turn changes the contact state of the second electromagnetic mechanism in the third circuit from a disconnected state to a conductive state, the externally applied signal to the control mechanism of the tripping device YR in the third circuit changes, the operating mechanism of the tripping device YR operates and determines the change from a conductive state to a disconnected state of the tripping module 130. The first electromagnetic mechanism is a normally open electromagnetic mechanism, and the second electromagnetic mechanism is a normally closed electromagnetic mechanism.

[0107] In this embodiment, when at least one of the following occurs: the state of the contacts of the first electromagnetic mechanism DC1 in the second circuit changes from a conductive state to a disconnected state, and the third switch K3 is switched from a conductive state to a disconnected state, the coil of the second electromagnetic mechanism DC2 in the second circuit changes from a conductive state to a disconnected state.

[0108] Therefore, a redundant third switch K3 is provided in the second circuit, and if other devices in the control circuit, such as the first electromagnetic mechanism DC1, are not functioning properly, the third switch K3 can change the state from energized to disconnected, thereby immediately and effectively driving and disconnecting the circuit breaker module 130.

[0109] In some embodiments of the present invention, the control circuit 210 is configured to drive the tripping device YR to the tripping module 130 to change it from a conductive state to a disconnected state when the switch module K changes from a conductive state to a disconnected state.

[0110] In other words, when the switch module K changes from an energized state to an disconnected state, the externally applied signal (e.g., current, voltage, etc.) to the control mechanism of the tripping device YR changes, the operating mechanism of the tripping device YR is activated, and the tripping module 130 is driven to disconnect.

[0111] For example, the first circuit includes a coil of a first electromagnetic mechanism DC1 and a first switch K1 connected in series with each other. When the first switch K1 changes from a conductive state to an disconnected state, the tripping device YR can drive the tripping module 130 to change it from a conductive state to an disconnected state.

[0112] For example, the first circuit includes a coil of a first electromagnetic mechanism DC1 and a second switch K2 connected in series with each other. When the second switch K2 changes from an energized state to an unenergized state, the tripping device YR can drive the tripping module 130 to disconnect it.

[0113] Furthermore, for example, the first circuit includes a coil of a first electromagnetic mechanism DC1, a first switch K1, and a second switch K2 connected in series with each other. When the first switch K1 changes from a powered state to an unpowered state and / or the second switch K2 changes from a powered state to an unpowered state, the tripping device YR can drive the tripping module 130 to change from a powered state to an unpowered state.

[0114] In the embodiment of the present invention, when the first switch K1 and / or the second switch K2 of the control circuit 210 are disconnected, the tripping device can be used to drive and disconnect the tripping module 130, thereby enabling immediate and effective disconnection of the tripping module 130.

[0115] In some embodiments of the present invention, as shown in Figure 6, the device 200 for controlling the interruption module further includes a first controller 310 for controlling the first switch K1 to change its state when it detects that a failure has occurred in the energy storage system 110 and / or the power system 120.

[0116] Selectively, the first controller 310 is used to control the first switch K1 to energize it, that is, to change it from an disconnected state to an energized state, when it detects that a fault has occurred in the energy storage system 110 and / or the power system 120.

[0117] Selectively, the first controller 310 is used to control and disconnect the first switch K1 when it detects a fault in the energy storage system 110 and / or the power system 120, that is, to change the state from energized to disconnected. When a fault is detected in the energy storage system 110 and / or the power system 120, controlling and disconnecting the first switch K1 changes the externally applied signal to the control mechanism of the tripping device YR, thereby driving the operating mechanism of the tripping device YR to operate and driving the tripping module 130 to disconnect.

[0118] If the first controller 210, for example, an energy management system (EMS), detects that the temperature of the energy storage system 110 and / or the power system 120 is too high, that the current is too high, or that a fire has occurred, it can determine that a malfunction has occurred in the energy storage system 110 and / or the power system 120.

[0119] In this embodiment, regardless of how many circuits are included in the control circuit 210, the device 200 can still include the first controller 310.

[0120] In the embodiment of the present invention, if a failure occurs in the energy storage system 110 and / or the power system 120, the first controller 310 automatically controls the disconnection of the first switch K1, thereby immediately and effectively disconnecting the interruption module 130, narrowing the scope of the failure's spread, and protecting the equipment in the energy storage system 110 and the power system 120 as much as possible.

[0121] Selectively, the first controller 310 may be connected to the first switch K1 via a mechanical motion mechanism. If a failure is detected in the energy storage system 110 and / or the power system 120, the first controller 310 can control the mechanical motion mechanism to move, and the movement of the mechanical motion mechanism can disconnect the first switch K1.

[0122] Selectively, as shown in Figure 7, the first controller 310 is used to adjust the first input signal in the sensing mechanism of the first electrical control device DK1 to control the contacts of the first electrical control device DK1 to change from an energized state to an disconnected state. The contacts of the first electrical control device DK1 are the first switch K1, and the first input signal includes current, voltage, impedance, frequency, temperature, pressure, or optical signal.

[0123] In other words, the first controller 310 can adjust the input signal in the detection mechanism of the first electrical control device DK1 and disconnect the contacts of the first electrical control device DK1.

[0124] In the embodiments of this application, the electrical control device may be a relay, a contactor, or a device having a similar function to a relay or contactor.

[0125] For example, the first controller 310 can control the detection mechanism (e.g., a coil) of the first electrical control device DK1 to conduct electricity and the contacts of the first electrical control device DK1 to disconnect, and the first electrical control device DK1 may be a normally closed electrical control device.

[0126] In the embodiment of the present invention, if a failure occurs in the energy storage system 110 and / or the power system 120, the first controller 310 can adjust the input signal of the detection mechanism of the first electrical control device DK1, thereby disconnecting the contacts of the first electrical control device DK1 and disconnecting the first switch, which in turn immediately and effectively disconnects the interruption module 130, thereby narrowing the scope of the failure's spread and protecting the equipment in the energy storage system 110 and the power system 120 as much as possible.

[0127] Figure 8 shows a schematic diagram of a device for controlling the shut-off module according to an embodiment of the present invention.

[0128] In some embodiments of the present application, the apparatus 200 includes a control circuit 210 which includes a first circuit, a second circuit, and a third circuit.

[0129] The first circuit includes a coil of the first electromagnetic mechanism DC1 and a switch module K connected in series with each other, the switch module K includes a first switch K1 and / or a second switch K2, the first switch K1 being an automatic control switch and the second switch K2 being a manual control switch. The second circuit includes contacts of the first electromagnetic mechanism DC1 and a coil of the second electromagnetic mechanism DC2 connected in series with each other. The third circuit includes contacts of the second electromagnetic mechanism DC2 and a control mechanism for the tripping device YR connected in series with each other, the operating mechanism of the tripping device YR connected to the tripping module 130.

[0130] In some embodiments of the present application, the first circuit further includes a third electromagnetic mechanism DC3, the coil of the third electromagnetic mechanism DC3 is connected in parallel with the coil of the first electromagnetic mechanism DC1.

[0131] The device 200 further includes a second controller 320. The second controller 320 is used to determine that a fault has occurred in the energy storage system 110 and / or the power system 120 based on a change in the state of the contacts of the third electromagnetic mechanism DC3.

[0132] The state of the contacts of the third electromagnetic mechanism DC3 includes both the disconnected state and the energized state.

[0133] The resistance, voltage across the contacts of the third electromagnetic mechanism DC3, and the current passing through the contacts of the third electromagnetic mechanism DC3 can reflect the state of the contacts of the third electromagnetic mechanism DC3. Therefore, changes in the state of the contacts of the third electromagnetic mechanism DC3 can be determined based on changes in the resistance, voltage across the contacts of the third electromagnetic mechanism DC3, and the current passing through the contacts of the third electromagnetic mechanism DC3.

[0134] For example, the third electromagnetic mechanism DC3 is a normally open electromagnetic mechanism. When the first switch K1 and / or the second switch K2 change from a live state to a closed state, the coil of the third electromagnetic mechanism DC3 changes from a conduction state to a disconnection state, and as a result, the contacts of the third electromagnetic mechanism DC3 change from a live state to a closed state. When the contacts of the third electromagnetic mechanism DC3 are closed, the voltage across the contacts of the third electromagnetic mechanism DC3 increases. The second controller 320 can determine that a fault has occurred in the energy storage system 110 and / or the power system 120 if the voltage across the contacts of the third electromagnetic mechanism DC3 increases (or exceeds a preset voltage threshold).

[0135] Furthermore, for example, the third electromagnetic mechanism DC3 is a normally closed electromagnetic mechanism. When the first switch K1 and / or the second switch K2 change from a live state to a closed state, the coil of the third electromagnetic mechanism DC3 changes from a conduction state to a disconnection state, and as a result, the contacts of the third electromagnetic mechanism DC3 change from a closed state to a live state. When the contacts of the third electromagnetic mechanism DC3 become live, the current passing through the contacts of the third electromagnetic mechanism DC3 increases. The second controller 310 can determine that a fault has occurred in the energy storage system 110 and / or the power system 120 if the current passing through the contacts of the third electromagnetic mechanism DC3 increases (or exceeds a current threshold).

[0136] In the embodiment of the present invention, the second controller 310 can be used to immediately and accurately determine, based on the change in the state of the contacts of the third electromagnetic mechanism DC3, that a fault has occurred in the energy storage system 110 and / or the power system 120.

[0137] In some embodiments of the present invention, the control circuit 210 is configured to drive the tripping device YR to the tripping module 130 to change it from a conductive state to a disconnected state when the switch module K changes from a conductive state to a disconnected state.

[0138] In this case, as shown in Figure 8, the second circuit further includes a fourth switch K4, which is connected in series with the contacts of the first electromagnetic mechanism DC1 and the control mechanism of the tripping device TY, and the first electromagnetic mechanism DC1 is a normally open electromagnetic mechanism.

[0139] The device 200 further includes a third controller 330. The third controller 330 is used to control the fourth switch K4 to change it from an energized state to an disconnected state when it determines that a fault has occurred in the energy storage system 110 and / or the power system 120.

[0140] Selectively, in this embodiment, the second controller 320 transmits information to the third controller 330 that a failure has occurred in the energy storage system 110 and / or the power system 120.

[0141] By providing a fourth switch K4 in the second circuit, if some other devices in the control circuit 210, such as the first electromagnetic mechanism DC1, cannot be properly disconnected, the redundantly provided fourth switch K4 can be disconnected, thereby interrupting the coil of the second electromagnetic mechanism DC2 in the second circuit, driving a change in the contacts of the second electromagnetic mechanism DC2 in the third circuit, changing the externally applied signal to the control mechanism of the tripping device YR, and moving the motion mechanism of the tripping device YR to drive and disconnect the tripping module 130. In this way, the tripping module 130 can be disconnected immediately and efficiently.

[0142] In this embodiment, selectively, the second controller 320 is connected to the fourth switch K4 via a mechanical motion mechanism. If it is determined that a failure has occurred in the energy storage system 110 and / or the power system 120, the second controller 320 controls the mechanical motion mechanism to move, and the movement of the mechanical motion mechanism can disconnect the fourth switch K4.

[0143] Selectively, in this embodiment, the third controller 330 is used to adjust the second input signal in the sensing mechanism of the second electrical control device DK2 to control the contacts of the second electrical control device DK2 to change from an energized state to an disconnected state, the second input signal includes current, voltage, impedance, frequency, temperature, pressure, or optical signal, and the contacts of the second electrical control device DK2 are the fourth switch K4.

[0144] As shown in Figure 9, the third controller 330 can adjust the input signal in the detection mechanism of the second electrical control device DK2, thereby disconnecting the contacts of the first electrical control device DK1 and achieving the objective of disconnecting the fourth switch K4.

[0145] For example, the third controller 330 can control the second electrical control device DK2, such as a normally closed relay, to conduct electricity, and the contacts of the second electrical control device DK2 to disconnect electricity.

[0146] In the embodiment of the present invention, the third controller 330 can adjust the input signal of the detection mechanism of the second electrical control device DK2, thereby achieving the objective of disconnecting the contacts of the second electrical control device DK2 and disconnecting the fourth switch K4, which in turn allows the interruption module 130 to be disconnected immediately and effectively, thereby narrowing the scope of fault propagation and protecting the equipment in the energy storage system 110 and the power system 120 as much as possible.

[0147] Figure 10 is a schematic diagram of a device for controlling a shut-off module according to an embodiment of the present application.

[0148] In some embodiments of the present application, the apparatus 200 may include a control circuit 210 that includes a first circuit, a second circuit, and a third circuit.

[0149] The first circuit includes a coil of the first electromagnetic mechanism DC1 and a switch module K connected in series with each other, the switch module K includes a first switch K1 and / or a second switch K2, the first switch K1 being an automatic control switch and the second switch K2 being a manual control switch. The second circuit includes contacts of the first electromagnetic mechanism DC1 and a coil of the second electromagnetic mechanism DC2 connected in series with each other. The third circuit includes contacts of the second electromagnetic mechanism DC2 and a control mechanism for the tripping device YR connected in series with each other, the operating mechanism of the tripping device YR connected to the tripping module 130.

[0150] In some embodiments of the present invention, the control circuit 210 is configured to change the contacts of the second electromagnetic mechanism DC2 from an open state to a conductive state in order to change the interruption module 130 from an open state to an open state when the switch module K changes from an energized state to an disconnected state.

[0151] For example, the first electromagnetic mechanism DC1 is a normally closed electromagnetic mechanism, the second electromagnetic mechanism DC2 is a normally open electromagnetic mechanism, and the tripping device YR is a voltage tripping device.

[0152] When the first switch K1 and / or the second switch K2 in the first circuit are disconnected, the coil of the first electromagnetic mechanism DC1 in the first circuit is disconnected, the contacts of the first electromagnetic mechanism DC1 in the second circuit become energized, the coil of the second electromagnetic mechanism DC2 in the second circuit becomes conductive, the contacts of the second electromagnetic mechanism DC2 in the third circuit become energized, the control mechanism of the tripping device YR in the third circuit becomes conductive and energized, the operating mechanism of the tripping device YR is driven and activated, and the tripping module 130 is disconnected.

[0153] Furthermore, for example, the first electromagnetic mechanism DC1 is a normally open electromagnetic mechanism, the second electromagnetic mechanism DC2 is a normally closed electromagnetic mechanism, and the tripping device YR is a voltage tripping device.

[0154] When the first switch K1 and / or the second switch K2 in the first circuit are disconnected, the coil of the first electromagnetic mechanism DC1 in the first circuit is disconnected, the contacts of the first electromagnetic mechanism DC1 in the second circuit are disconnected, the coil of the second electromagnetic mechanism DC2 in the second circuit is disconnected, the contacts of the second electromagnetic mechanism DC2 in the third circuit are energized, the control mechanism of the tripping device YR in the third circuit is energized and energized, the operating mechanism of the tripping device YR is driven and activated, and the tripping module 130 is disconnected.

[0155] In the embodiment of the present invention, when the first switch and / or the second switch is disconnected, the contacts of the second electromagnetic mechanism DC2 in the control circuit 210 are energized, and the tripping device YR is used to drive the tripping module 130, thereby immediately and effectively disconnecting the power.

[0156] Selectively, in this embodiment, the third circuit further includes a fifth switch K5, the fifth switch K5 being connected in series with the contacts of the second electromagnetic mechanism DC2 and the control mechanism of the tripping device YR.

[0157] The device further includes a fourth controller 340. The fourth controller 340 is used to control the fifth switch K5 to change the disconnection module 130 from a connected state to a connected state when the contacts of the second electromagnetic mechanism DC2 change from a disconnected state to a connected state.

[0158] For example, when the first switch K1 and / or the second switch K2 in the first circuit change from a live state to a disconnected state, the coil of the first electromagnetic mechanism DC1 is switched from a conduction state to a disconnected state, the contact of the first electromagnetic mechanism DC1 is switched from a live state to a disconnected state, the coil of the second electromagnetic mechanism DC2 changes from a conduction state to a disconnected state, and the contact of the second electromagnetic mechanism DC2 changes from a disconnected state to a live state.

[0159] When the contacts of the second electromagnetic mechanism DC2 are energized, the fourth controller 340 controls the fifth switch K5 to energize the third circuit. The control mechanism (coil) of the tripping device YR is energized and excited, which drives the operating mechanism of the tripping device YR to operate it, and drives the tripping module 130 to disconnect.

[0160] Similar to the third electromagnetic mechanism DC3, the voltage across the contacts of the second electromagnetic mechanism DC2, the impedance, and the current passing through the second electromagnetic mechanism can reflect the state of the contacts of the second electromagnetic mechanism DC2. Therefore, the state of the contacts of the second electromagnetic mechanism DC2 can be determined based on the resistance across the contacts of the second electromagnetic mechanism DC2 and the current passing through the contacts of the third electromagnetic mechanism DC2.

[0161] For example, when the contact of the second electromagnetic mechanism DC2 changes from an open state to an energized state, the current passing through the contact of the second electromagnetic mechanism DC2 increases. When the current passing through the contact of the second electromagnetic mechanism DC2 increases, it can be determined that the contact of the second electromagnetic mechanism DC2 is energized.

[0162] In the embodiment of the present invention, when the contacts of the second electromagnetic mechanism DC2 are energized, that is, when a failure occurs in the energy storage system 110 and / or the power system 120, the energization of the fifth switch K5 can be controlled via the fourth controller 340, allowing for flexible control of the conduction of the third circuit, thereby allowing for flexible control of the disconnection of the circuit breaker module 130.

[0163] Selectively, the fourth controller 340 is used to determine the current or power between the energy storage system 110 and the power system 120 when the contacts of the second electromagnetic mechanism DC2 change from an open state to an energized state. If the current or power between the energy storage system 110 and the power system 120 is below a preset threshold, the fifth switch K5 is controlled to change from an open state to an energized state. If the current or power between the energy storage system 110 and the power system 120 is above a preset threshold, the fourth controller 340 controls the current or power between the energy storage system 110 and the power system 120 to decrease. Furthermore, after a preset time has elapsed since the contacts of the second electromagnetic mechanism DC2 changed from an open state to an energized state, the fifth switch K5 is controlled to change from an open state to an energized state.

[0164] In other words, in this embodiment, when the contacts of the second electromagnetic mechanism DC2 are energized, if the current or power between the energy storage system 110 and the power system 120 is below a preset threshold, the fifth switch K5 is controlled to immediately energize the system. If the current or power between the energy storage system 110 and the power system 120 is above a preset threshold, the system is first controlled to reduce the current or power between the energy storage system 110 and the power system 120, and then the fifth switch K5 is controlled to energize the system after the contacts of the second electromagnetic mechanism DC2 have been energized for a preset time.

[0165] For example, when the contacts of the second electromagnetic mechanism DC2 are energized, if the current between the energy storage system 110 and the power system 120 is 5 amperes (A) or less, the fifth switch K5 is controlled to energize the system. If the current between the energy storage system 110 and the power system 120 is greater than 5A, the system is first controlled to reduce the current between the energy storage system 110 and the power system 120, and then the fifth switch K5 is controlled to energize the system after the contacts of the second electromagnetic mechanism DC2 are energized for 10 seconds.

[0166] When controlling the current or power between the energy storage system 110 and the power system 120 to decrease it, regardless of whether the current or power has decreased to a preset threshold, the contacts of the second electromagnetic mechanism DC2 are energized for a preset time before the fifth switch K5 is controlled to energize it.

[0167] In the embodiment of the present invention, when the contacts of the second electromagnetic mechanism DC2 are energized, the energization of the fifth switch can be controlled by referring to the magnitude of the current or power between the energy storage system 110 and the power system 120. In this way, if the current or power between the energy storage system 110 and the power system 120 is small, the fifth switch K5 can be controlled to immediately energize the system, and if the current or power between the energy storage system 110 and the power system 120 is large, the current or power between the energy storage system 110 and the power system 120 can first be controlled to decrease, and then the fifth switch K5 can be controlled to energize the system.

[0168] This reduces the impact of high currents on the energy storage system 110, thereby improving the performance and service life of the energy storage system 110. Selectively, in this embodiment, the fourth controller 340 can acquire current or power between the energy storage system 110 and the power system 120 via the converter module 140. For example, as shown in 10, the fourth controller 340 can communicate with the converter module 140.

[0169] Selectively, the fourth controller 340 may be a converter module 340. The converter module 340 can record the current or power between the energy storage system 110 and the power system 120.

[0170] Selectively, the fourth controller 340 may be connected to the fifth switch K5 via a mechanical motion mechanism. The fourth controller 340 may control the mechanical motion mechanism to move, thereby disconnecting the fifth switch K5.

[0171] Selectively, the fourth controller 340 is used to adjust the third input signal in the sensing mechanism of the third electrical control device DK3 to control the contacts of the third electrical control device DK3 to change from an open state to an energized state. The third input signal includes current, voltage, impedance, frequency, temperature, pressure, or optical signal, and the contacts of the third electrical control device DK3 are the fifth switch K5.

[0172] Selectively, as shown in Figure 11, the fourth controller 340 can energize the contacts of the third electrical control device DK3 by adjusting the input signal in the detection mechanism of the third electrical control device DK3.

[0173] For example, the fourth controller 340 can control the third electrical control device DK3, such as the detection mechanism (coil) of an electromagnetic relay, to conduct electricity and the contacts of the third electrical control device DK3 to disconnect.

[0174] In the embodiment of the present invention, the fourth controller 340 can adjust the input signal of the detection mechanism of the third electrical control device DK3, thereby achieving the objective of disconnecting the contacts of the third electrical control device DK3, disconnecting the fifth switch, and disconnecting the interruption module 130, thereby narrowing the scope of fault propagation and protecting the equipment in the energy storage system 110 and the power system 120 as much as possible.

[0175] In some embodiments of the present application, the device 200 for controlling the interruption module 130 includes the first circuit, the second circuit and the third circuit, and the first controller 310, the second controller 320, the third controller 330 and the fourth controller 340.

[0176] Figure 12 is a schematic diagram of a device for controlling a shut-off module according to an embodiment of the present application.

[0177] In some embodiments of the present application, the apparatus 200 includes a control circuit 210 which includes a first circuit and a second circuit.

[0178] The first circuit includes a coil of a first electromagnetic mechanism DC1 and a switch module K connected in series with each other, the switch module K includes a first switch K1 and / or a second switch K2, the first switch K1 being an automatic control switch and the second switch K2 being a manual control switch.

[0179] The second circuit includes the contacts of the first electromagnetic mechanism DC1 and the control mechanism of the tripping device YR, which are connected in series with each other, and the operating mechanism of the tripping device YR is connected to the tripping module 130.

[0180] In some embodiments of the present invention, the control circuit 210 is configured to drive the tripping device YR to the tripping module 130 to change it from a conductive state to a disconnected state when the switch module K changes from a conductive state to a disconnected state.

[0181] Selectively, the control circuit 210 is configured to change the contacts of the first electromagnetic mechanism DC1 from a live state to a disconnected state in order to change the interruption module 130 from a conductive state to a disconnected state when the switch module K changes from a live state to a disconnected state.

[0182] For example, the first electromagnetic mechanism DC1 is a normally open electromagnetic mechanism, and the tripping device YR is an undervoltage tripping device. By disconnecting the first switch K1 and / or the second switch K2, the coil of the first electromagnetic mechanism DC1 in the first circuit is disconnected, the contacts of the first electromagnetic mechanism DC2 in the second circuit are also disconnected, the voltage of the coil (control mechanism) of the tripping device YR in the second circuit becomes lower than the rated voltage of the tripping device, which drives the operating mechanism of the tripping device YR to operate, and drives the tripping module 130 to disconnect.

[0183] Selectively, the control circuit 210 is configured to energize the contacts of the first electromagnetic mechanism DC1 in order to interrupt the interruption module 130 when the first switch K1 and / or the second switch K2 are disconnected.

[0184] For example, the first electromagnetic mechanism DC1 may be a normally closed electromagnetic mechanism, and the tripping device YR may be a voltage tripping device. By disconnecting the first switch K1 and / or the second switch K2, the coil of the first electromagnetic mechanism DC1 in the first circuit is disconnected, thereby energizing the contacts of the first electromagnetic mechanism DC1 in the second circuit, which energizes and energizes the coil (control mechanism) of the tripping device YR in the second circuit, driving the operating mechanism of the tripping device YR to operate it, and driving the tripping module 130 to disconnect.

[0185] In some embodiments of the present invention, the second circuit further includes a fifth switch K5, which is connected in series with the contacts of the first electromagnetic mechanism DC1 and the control mechanism of the tripping device YR.

[0186] The device 200 further includes a fourth controller 340 used to control the fifth switch K5 to change the disconnection module 130 from a conductive state to a disconnected state when the contacts of the first electromagnetic mechanism DC1 change from a disconnected state to a conductive state.

[0187] For example, when the first switch K1 and / or the second switch K2 change from a conductive state to a disconnected state, the coil of the first electromagnetic mechanism changes from a conductive state to a disconnected state, driving the contacts of the first electromagnetic mechanism DC1 (normally closed relay) to conduct electricity. When the fourth controller conducts electricity to the contacts of the first electromagnetic mechanism DC1, it controls the fifth switch K5 to conduct electricity, thereby conducting and exciting the control mechanism (coil) of the tripping device YR (voltage tripping device), driving the operating mechanism of the tripping device YR to operate it, and driving the tripping module 130 to trip the circuit.

[0188] Selectively, in this embodiment, the fourth controller 340 is used to determine the current or power between the energy storage system 110 and the power system 120 when the contacts of the first electromagnetic mechanism DC1 change from an open state to an energized state. If the current or power between the energy storage system 110 and the power system 120 is below a preset threshold, the fourth controller 340 controls the fifth switch K5 to change from an open state to an energized state, or if the current or power between the energy storage system 110 and the power system 120 is above a preset threshold, the fourth controller 340 controls the current or power between the energy storage system 110 and the power system 120 to decrease, and controls the fifth switch K5 to change from an open state to an energized state after a preset time has elapsed since the contacts of the first electromagnetic mechanism DC1 changed from an open state to an energized state.

[0189] Selectively, the fourth controller 340 can obtain current or power between the energy storage system 110 and the power system 120 via the converter module 140.

[0190] Selectively, the fourth controller 340 may be a converter module 340. The converter module 340 can record the current current or power between the energy storage system 110 and the power system 120, and can control the fifth switch K5 to energize it.

[0191] The explanation in Figure 12 of how the fourth controller 340 controls the fifth switch K5 to energize it is the same as the explanation in Figures 10 and 11 of how the fourth controller 340 controls the fifth switch K5 to energize it, and therefore this explanation is omitted here.

[0192] In some embodiments of the present invention, the second controller 320 is also used to transmit instruction information to the first controller 310 when it determines that a failure has occurred in the energy storage system 110 and / or the power system 120.

[0193] Selectively, in this embodiment, the first controller 310 and the second controller 320 can communicate with each other.

[0194] For example, the first controller 310 may be an EMS, and the second controller may be a BMS for the energy storage system 110. The BMS can send instruction information to the EMS if it determines that a fault has occurred in the energy storage system 110 and / or the power system 120.

[0195] In the embodiment of the present invention, the second controller 320 can transmit information to the first controller 310 indicating that a failure has occurred in the energy storage system 110 and / or the power system 120, thereby enabling the first controller 310 to determine whether the switch should be manually switched or automatically switched when a failure occurs in the energy storage system 110 and / or the power system 120.

[0196] In some embodiments of the present invention, as shown in Figure 13, the apparatus 200 further includes a fifth controller 350 used to control a DC switch in the energy storage system 110 to change from an energized state to an disconnected state when the disconnection module 130 is in a disconnected state.

[0197] In the embodiment of the present invention, the energy storage system 110 further includes a DC switch. For example, the energy storage system 110 may include multiple battery clusters, each of which is provided with a corresponding battery cluster management unit (CMU) and connected to a battery collection panel (BCP) in parallel by the CMUs, and then connected to the power grid. The CMU may include a DC switch.

[0198] In this embodiment, the DC switch may include a circuit breaker or a contactor, etc.

[0199] Because the DC switch has low interruption capability under load, or because it cannot perform an interruption operation under load, the DC switch can be controlled to interrupt the circuit after the interruption module 130 has been disconnected.

[0200] For example, the fifth controller 350 can collect the current passing through the interruption module 130 to determine whether the interruption module 130 is disconnected. If the interruption module 130 is disconnected, it disconnects the DC switch in the energy storage system 110.

[0201] Selectively, the fifth controller 350 can communicate with the BMS of the energy storage system 110 and control the BMS to disconnect the DC switch of the energy storage system 110.

[0202] Selectively, the fifth controller 350 may be a BMS of the energy storage system. For example, the BMS can determine whether the interruption module 130 is disconnected by the current passing through it. If the interruption module 130 is disconnected, the BMS controls the DC switch in the energy storage system 110 to disconnect it.

[0203] In the embodiment of the present invention, when the disconnection module 130 is in the disconnected state, the DC switch can be controlled to disconnect it, thereby reducing the phenomenon of arc drawing caused by the DC switch being disconnected under load conditions and reducing the impact on the energy storage system 110.

[0204] In some embodiments of the present invention, the second controller 320 and the third controller 330 are the same controller.

[0205] In the embodiment of the present invention, the second controller 320 and the third controller 330 are the same controller, enabling the integration of fault signal input (determining that a fault has occurred in the energy storage system 110 and / or power system 120) and fault signal output (disconnecting the fourth switch K4), thereby improving the efficiency of fault signal output and making it easier to immediately disconnect the interruption module 130. At the same time, the fault signal output can be controlled by the fault input signal, and redundant control for the second circuit can be performed by the fourth switch K4, enabling accurate and effective disconnection of the interruption module 130.

[0206] In some embodiments of the present invention, the second controller 320 and the third controller 330 can further communicate with the BMS in the energy storage system 110.

[0207] In some embodiments of the present application, the second controller 320 and the third controller 330 may be BMSs within the energy storage system 110.

[0208] The embodiments of the present invention further provide energy storage systems and microgrid systems, which are described below illustratively with reference to Figures 14 and 15.

[0209] Figure 14 shows a schematic block diagram of an energy storage system 1400 according to an embodiment of the present application. As shown in Figure 14, a disconnection module is connected between the energy storage system 1400 and the power system, and the energy storage system 1400 includes a battery 1410 and a device 1420 for controlling the disconnection module according to an embodiment of the present application.

[0210] The device can be used to control the disconnection of the disconnection module.

[0211] For further details regarding the energy storage system 1400, the battery 1410, and the device 1420 for controlling the shutdown module, etc., please refer to the relevant information above. For brevity, this application omits such a description here.

[0212] Figure 15 is a schematic block diagram of a microgrid system according to an embodiment of the present invention. As shown in Figure 15, the microgrid system 1500 includes an energy storage system 1510, a power system 1520, a disconnection module 1530, and a device 1540 for controlling the disconnection module.

[0213] A description of the energy storage system 1510, the power system 1520, the interruption module 1530, and the device 1540 for controlling the interruption module can be found in the relevant sections above, and for the sake of brevity, this application omits such a description here.

[0214] While the present application has been described with reference to preferred embodiments, various improvements and substitutions of components with equivalents can be made without departing from the scope of the application. In particular, each technical feature mentioned in each embodiment can be combined in any way, provided that there is no structural inconsistency. The present application is not limited to the specific embodiments disclosed herein and includes all technical solutions included in the claims.

Claims

1. A device for controlling a circuit breaker module, The aforementioned disconnection module is connected between the energy storage system and the power system. When the operating state of the interruption module is in a conductive state, the path for transmitting electrical energy between the energy storage system and the power system is in a conductive state. When the operating state of the disconnection module is disconnected, the path for transmitting electrical energy between the energy storage system and the power system is disconnected. The device includes a control circuit, The control circuit includes a switch module and a tripping device. The control circuit is configured to drive the interruption module via the tripping device to change the state of the switch module from the conductive state to the disconnected state when the state of the switch module changes, and is a device for controlling an interruption module.

2. The control circuit includes a first circuit, a second circuit, and a third circuit. The first circuit includes a coil and a switch module of a first electromagnetic mechanism connected in series with each other, the switch module includes a first switch and / or a second switch, the first switch is an automatic control switch, and the second switch is a manual control switch. The second circuit includes the contacts of the first electromagnetic mechanism and the coil of the second electromagnetic mechanism, which are connected in series with each other. The apparatus according to claim 1, wherein the third circuit includes contacts of the second electromagnetic mechanism and a control mechanism for the tripping device, and the operating mechanism of the tripping device is connected to the tripping module.

3. The apparatus according to claim 2, wherein the second circuit further includes a third switch, the third switch being connected in series with the contacts of the first electromagnetic mechanism and the coil of the second electromagnetic mechanism, and the second switch and the third switch are configured such that pressing a single button changes the state of the second switch and the third switch simultaneously, and the states of the second switch and the third switch are the same.

4. The apparatus according to claim 2 or 3, wherein the control circuit is configured to drive the tripping device to change the switch module from a conductive state to a disconnected state when the switch module changes from a conductive state to a disconnected state.

5. The apparatus according to claim 4, further comprising a first controller for controlling the first switch to change from an energized state to an disconnected state when a failure is detected in the energy storage system and / or the power system.

6. The apparatus according to claim 5, characterized in that the first controller is used to adjust a first input signal in the detection mechanism of the first electrical control device to control the contacts of the first electrical control device to change from an energized state to an disconnected state, the contacts of the first electrical control device are a first switch, and the first input signal includes current, voltage, impedance, frequency, temperature, pressure, or an optical signal.

7. The first circuit further includes a coil of a third electromagnetic mechanism, the coil of the third electromagnetic mechanism being connected in parallel with the coil of the first electromagnetic mechanism. The apparatus according to claim 5 or 6, further comprising a second controller for determining that a malfunction has occurred in the energy storage system and / or the power system based on a change in the state of the contacts of the third electromagnetic mechanism.

8. The second circuit further includes a fourth switch, the fourth switch being connected in series with the contacts of the first electromagnetic mechanism and the control mechanism of the tripping device, and the first electromagnetic mechanism is a normally open electromagnetic mechanism. The apparatus according to claim 7, further comprising a third controller for controlling the fourth switch to change it from an energized state to an disconnected state when it is determined that a malfunction has occurred in the energy storage system and / or the power system.

9. The apparatus according to claim 8, wherein the third controller is used to adjust the second input signal in the detection mechanism of the second electrical control device to control the contact of the second electrical control device to change from an energized state to an disconnected state, the contact of the second electrical control device is the fourth switch, and the second input signal includes current, voltage, impedance, frequency, temperature, pressure, or optical signal.

10. The apparatus according to any one of claims 4 to 9, wherein the control circuit is configured to change the contacts of the second electromagnetic mechanism from an open state to an open state in order to change the break-off module from a conductive state to an open state when the switch module changes from an energized state to an open state.

11. The third circuit further includes a fifth switch, the fifth switch being connected in series with the contacts of the second electromagnetic mechanism and the control mechanism of the tripping device. The apparatus according to claim 10, further characterized in that, when the contacts of the second electromagnetic mechanism change from an open state to an energized state, it includes a fourth controller used to control the fifth switch to change the disconnection module from the energized state to the open state.

12. The fourth controller is, When the contact of the second electromagnetic mechanism changes from an open state to an energized state, the current or power between the energy storage system and the power system is determined. If the current or power between the energy storage system and the power system is below a preset threshold, the fifth switch is controlled to change from an energized state to an disconnected state, or If the current or power between the energy storage system and the power system is greater than or equal to the preset threshold, the system controls the current or power between the energy storage system and the power system to decrease, and controls the fifth switch to change from the disconnected state to the energized state after a preset time has elapsed since the contacts of the second electromagnetic mechanism changed from the disconnected state to the energized state. The apparatus according to claim 11, characterized in that it is used for the following purpose.

13. The apparatus according to any one of claims 10 to 12, characterized in that the fourth controller is used to adjust the third input signal in the detection mechanism of the third electrical control device to control the contact of the third electrical control device to change from an open state to a conductive state, the contact of the third electrical control device is the fifth switch, and the third input signal includes current, voltage, impedance, frequency, temperature, pressure, or optical signal.

14. The apparatus according to any one of claims 7 to 13, further characterized in that the second controller is also used to transmit instruction information to the first controller when it determines that a failure has occurred in the energy storage system and / or the power system.

15. The apparatus according to any one of claims 1 to 14, further comprising a fifth controller used to control a DC switch in the energy storage system to change the state from energized to disconnected when the disconnection module is in the disconnected state.

16. The apparatus according to any one of claims 8 to 13, characterized in that the second controller and the third controller are the same controller.

17. The battery and the device for controlling the shut-off module according to any one of claims 1 to 16, An energy storage system characterized in that the disconnection module is connected between the energy storage system and the power system.

18. A microgrid system comprising an energy storage system, a power system, a shut-off module, and a device for controlling the shut-off module according to any one of claims 1 to 16.

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