Inverter and power supply system

Abstract

The present disclosure provides an inverter and a power supply system. The inverter comprises a power conversion module, a controller, a signal transmitter, and a transformer. The power conversion module is connected to a direct current output line of an input power supply and is used for converting direct current power inputted by the input power supply into alternating current power. The controller is connected to the power conversion module and is used for controlling current conversion of the power conversion module. A power supply end of the signal transmitter is connected to a power supply. A signal output end of the signal transmitter is connected to the transformer and is used for driving the transformer to send a power carrier signal. The transformer is arranged on the direct current output line of the input power supply. The technical problem in the prior art of how to provide a low-cost inverter that is easy to mount can be solved. The signal transmitter, the controller, and the power conversion module are reused, such that a portion of circuits are eliminated and hardware costs are reduced, while a reduced wiring mounting process is implemented, and the technical effects of reducing the costs and the mounting difficulty of the inverter are achieved.

Description

Inverter and power supply system Technical Field

[0001] The present disclosure relates to the field of photovoltaic storage technology, and in particular to an inverter and a power supply system. Background Art

[0002] Currently, when a solar-powered energy storage system fire occurs, the photovoltaic DC voltage, which can reach thousands of volts, presents significant challenges for firefighters. A rapid shutdown function quickly disconnects the power output of the energy storage battery or each photovoltaic module, reducing the system DC voltage to a safe range and facilitating rescue efforts. Existing technology requires a separate transmitter to control the shutdown function of the energy storage battery or photovoltaic module, increasing system costs and making installation more complex.

[0003] Therefore, how to provide a low-cost, easy-to-install inverter is a technical problem that needs to be solved urgently.

[0004] Summary of the Invention

[0005] The purpose of the present disclosure is to provide a low-cost, easy-to-install inverter and power supply system.

[0006] To achieve the above object, the present disclosure provides an inverter, comprising: a power conversion module, a controller, a signal transmitter and a mutual inductor;

[0007] The power conversion module is connected to the DC output line of the input power supply and is used to convert the DC power input by the input power supply into AC power;

[0008] The controller is connected to the power conversion module and is used to control the current conversion of the power conversion module;

[0009] The power supply end of the signal transmitter is connected to a power source;

[0010] The signal output end of the signal transmitter is connected to the transformer, and is used to drive the transformer to send a power carrier signal to the input power supply;

[0011] The mutual inductor is arranged on the DC output line of the input power supply.

[0012] In an exemplary embodiment, it further includes:

[0013] The controller is connected to the power supply end of the signal transmitter through a sampling circuit, and is used to collect the power supply signal of the signal transmitter.

[0014] In an exemplary embodiment, the further comprising: a remote control switch;

[0015] The remote control switch is connected in series between the power supply end of the signal transmitter and the power supply;

[0016] The controller is connected to the remote control switch and is used to disconnect the remote control switch when the controller receives a shutdown instruction sent by the remote end.

[0017] In an exemplary embodiment, the signal transmitter includes: a signal control module and a signal driving module;

[0018] The signal control module is used to generate a control instruction and send it to the signal driving module.

[0019] In an exemplary embodiment, the signal transmitter includes: a signal driving module;

[0020] The controller is communicatively connected to the signal driving module and is configured to instruct the signal driving module to shut down through a communication signal.

[0021] In an exemplary embodiment, the signal transmitter includes: a signal driving module;

[0022] The controller is electrically connected to the signal driving module, and is used to generate a control instruction and send the control instruction to the signal driving module.

[0023] In an exemplary embodiment, the power carrier signal includes at least one of the following control instructions: a start instruction, a stop instruction, and an output power setting instruction of the input power supply.

[0024] In an exemplary embodiment, the power supply is provided inside the inverter, and the charging input terminal of the power supply is connected to the AC output terminal of the power conversion module; or,

[0025] The power supply is arranged outside the inverter, and a charging input terminal of the power supply is connected to a power grid system corresponding to the power conversion module.

[0026] In an exemplary embodiment, it further includes:

[0027] The power supply is arranged outside the inverter, the first charging input end of the power supply is connected to the power grid system corresponding to the power conversion module, and the second charging input end of the power supply is connected to the emergency output port of the power conversion module.

[0028] In an exemplary embodiment, it further includes:

[0029] The power supply end of the power conversion module is connected to the power supply.

[0030] In an exemplary embodiment, the power supply is further used to supply power to various power-consuming components in the inverter, including the controller.

[0031] In one exemplary embodiment, further comprising: an independent power supply;

[0032] The independent power supply is used to supply power to various power-consuming components in the inverter, and the power-consuming components include the controller.

[0033] In an exemplary embodiment, the invention further comprises: an emergency stop switch;

[0034] The emergency stop switch is connected in series between the power supply end of the signal transmitter and the power supply;

[0035] The emergency stop switch is arranged inside the inverter.

[0036] In an exemplary embodiment, the power supply end of the signal transmitter is connected to the power supply via an emergency stop switch;

[0037] The emergency stop switch is arranged outside the inverter.

[0038] In an exemplary embodiment, the input power source includes at least one of the following power sources: a photovoltaic component, and an energy storage battery.

[0039] According to another aspect of the embodiments of the present disclosure, there is also provided a power supply system, comprising: an input power supply and any one of the inverters described above;

[0040] The output end of the input power supply is connected to the power conversion module of the inverter;

[0041] The input power source includes at least one of the following power sources: a photovoltaic module, an energy storage battery.

[0042] The technical solution of the present disclosure is further described in detail below through the accompanying drawings and examples. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The following drawings are only intended to illustrate and explain the present disclosure, and are not intended to limit the scope of the present disclosure.

[0044] FIG1 is a simplified structural diagram of an inverter according to an embodiment of the present disclosure.

[0045] FIG2 is a schematic structural diagram of an inverter according to an optional embodiment of the present disclosure.

[0046] FIG3 is a second schematic structural diagram of an inverter according to an optional embodiment of the present disclosure.

[0047] FIG4 is a third structural schematic diagram of an inverter according to an optional embodiment of the present disclosure.

[0048] FIG5 is a fourth structural diagram of an inverter according to an optional embodiment of the present disclosure.

[0049] FIG6 is a fifth structural diagram of an inverter according to an optional embodiment of the present disclosure.

[0050] FIG7 is a sixth structural diagram of an inverter according to an optional embodiment of the present disclosure.

[0051] FIG8 is a seventh structural diagram of an inverter according to an optional embodiment of the present disclosure.

[0052] FIG9 is an eighth structural diagram of an inverter according to an optional embodiment of the present disclosure.

[0053] FIG10 is a ninth structural diagram of an inverter according to an optional embodiment of the present disclosure.

[0054] FIG11 is a tenth schematic diagram of the structure of an inverter according to an optional embodiment of the present disclosure.

[0055] FIG12 is an eleventh structural diagram of an inverter according to an optional embodiment of the present disclosure.

[0056] FIG13 is a twelfth structural diagram of an inverter according to an optional embodiment of the present disclosure.

[0057] FIG14 is a thirteenth schematic diagram of the structure of an inverter according to an optional embodiment of the present disclosure.

[0058] FIG15 is a fourteenth schematic diagram of the structure of an inverter according to an optional embodiment of the present disclosure.

[0059] FIG16 is a simplified structural diagram of a power supply system according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0060] The present application will be further described in detail below through the accompanying drawings and examples, through which the features and advantages of the present application will become more clear and distinct.

[0061] The word "exemplary" is used exclusively herein to mean "serving as an example, example, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0062] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0063] In this embodiment, an inverter is provided. FIG1 is a simplified structural diagram of the inverter according to the embodiment of the present disclosure. As shown in FIG1 and FIG2 , the inverter includes a power conversion module, a controller, a signal transmitter, and a mutual inductor.

[0064] The power conversion module is connected to the DC output line of the input power supply and is used to convert the DC power input by the input power supply into AC power.

[0065] The power conversion module may be provided with a connection port on the inverter for receiving a direct current input power source, or may be provided with a connection port on the inverter for receiving a power grid system for outputting alternating current.

[0066] The controller is connected to the power conversion module and is used to control the current conversion of the power conversion module.

[0067] The controller may input a switch instruction to the power conversion module to instruct the power conversion module to operate or to be on standby.

[0068] The power supply end of the signal transmitter is connected to a power source.

[0069] After the emergency stop switch is closed, the power supply supplies power to the signal transmitter through the power supply end.

[0070] The signal output end of the signal transmitter is connected to the transformer, and is used to drive the transformer to send a power carrier signal to the input power supply.

[0071] The power carrier signal may be an activation instruction generated by the above-mentioned signal transmitter.

[0072] The transformer is arranged on the DC output line of the input power supply.

[0073] The mutual inductor may be arranged at the connection port for the direct current of the input power supply.

[0074] The input power source includes photovoltaic panels and / or energy storage batteries.

[0075] In the embodiment of the present disclosure, the DC output line of the input power supply is connected to the power conversion module to convert the DC power of the input power supply into AC power. The controller is connected to the power conversion module to control the current conversion of the power conversion module. The power supply end of the signal transmitter is connected to the power supply. The signal output end of the signal transmitter is connected to the transformer to drive the transformer to generate a power carrier signal. The transformer is arranged on the DC output line of the input power supply. The technical problem of how to provide a low-cost and easy-to-install inverter in the related art can be solved. By reusing the signal transmitter, the controller and the power conversion module, part of the circuit is reduced, the hardware cost is reduced, and the wiring installation process is reduced, thereby achieving the technical effect of reducing the cost and installation difficulty of the inverter.

[0076] In an exemplary embodiment, FIG2 is one of the structural schematic diagrams of an inverter according to an optional embodiment of the present disclosure.

[0077] The power conversion module is connected to the output line of the photovoltaic module and / or the energy storage battery, and is used to convert the direct current input by the photovoltaic module and / or the energy storage battery into alternating current.

[0078] The above inverter can be used not only for AC conversion of photovoltaic modules, but also for AC conversion of energy storage batteries or photovoltaic energy storage systems, thereby achieving the technical effect of multi-scenario application of the inverter.

[0079] In an exemplary embodiment, FIG3 is a second structural diagram of an inverter according to an optional embodiment of the present disclosure.

[0080] The controller is connected to the power supply end of the signal transmitter via a sampling circuit, and is used to collect the power supply signal of the signal transmitter.

[0081] The sampling circuit can be a current sampling circuit or a voltage sampling circuit.

[0082] Through the above embodiment, the controller is used to sample the power supply signal at the power supply end of the signal transmitter, thereby monitoring the working state of the above signal transmitter, thereby achieving the technical effect of detecting the shutdown state of the inverter.

[0083] In an exemplary embodiment, FIG4 is a third structural diagram of an inverter according to an optional embodiment of the present disclosure. As shown in FIG4 , the inverter further includes a remote control switch.

[0084] The remote control switch is connected in series between the power supply end of the signal transmitter and the power supply.

[0085] The controller is connected to the remote control switch and is used to disconnect the remote control switch when the controller receives a shutdown instruction sent by a remote end.

[0086] The remote terminal may be a cloud server communicating with the controller in real time. The controller may transmit to the remote terminal real-time monitoring of the power supply current / current signal, or a determination result such as whether the power supply current signal exceeds a set current value, or whether the power supply voltage signal exceeds a set current value, and wait for the shutdown command sent by the remote terminal.

[0087] Through the above embodiment, a remote switch controlled by the above controller is provided between the power supply end of the above signal transmitter and the above power supply, so that when an abnormal state occurs, the controller controls the remote switch to quickly shut down based on the shutdown command sent by the remote end, thereby completing the power off of the signal transmitter and achieving the technical effect of ensuring the inverter's shutdown function in complex situations.

[0088] In an exemplary embodiment, FIG5 is a fourth structural diagram of an inverter according to an optional embodiment of the present disclosure. As shown in FIG5 , the signal transmitter includes: a signal control module and a signal driving module.

[0089] The signal control module is used to generate control instructions and send them to the signal driving module.

[0090] Through the above embodiment, the above functions are realized by using a signal transmitter with a signal control module and a signal driving module, wherein the signal control module can generate corresponding control instructions, thereby realizing the independent signal processing capability of the signal transmitter, and achieving the technical effect of improving the reliability of the inverter system.

[0091] In an exemplary embodiment, FIG6 is a fifth structural diagram of an inverter according to an optional embodiment of the present disclosure. As shown in FIG6 , the signal transmitter includes: a signal driving module;

[0092] The controller is communicatively connected to the signal driving module and is used to instruct the signal driving module to shut down through a communication signal.

[0093] That is, the signal driving module is instructed to stop driving the mutual inductor to send the power carrier signal to the photovoltaic assembly.

[0094] The controller may be connected to the signal driving module via wireless communication.

[0095] The controller may transmit control instructions to the signal driving module via a built-in communication module.

[0096] Through the above embodiment, the controller controls the signal driving module in a communication connection manner, thereby reducing the interference problem of circuit connection.

[0097] In an exemplary embodiment, FIG7 is a sixth structural diagram of an inverter according to an optional embodiment of the present disclosure. As shown in FIG7 , the signal transmitter includes: a signal driving module;

[0098] The controller is electrically connected to the signal driving module and is used to generate a control instruction and send it to the signal driving module.

[0099] The controller may be electrically connected to the signal driving module via a wired circuit.

[0100] The controller controls the signal driving module in an electrically connected manner, thereby achieving a technical effect of further reducing circuit hardware costs.

[0101] In an exemplary embodiment, the power carrier signal includes at least one of the following control instructions: a start instruction, a stop instruction, and an output power setting instruction of the input power supply.

[0102] Through the above embodiment, the controller sends the start / stop signal and the output power setting control instruction of the input power supply to the signal driving module to control the operation of the photovoltaic module, thereby quickly and remotely shutting down the signal driving module.

[0103] In an exemplary embodiment, the power supply is provided inside the inverter, and the charging input terminal of the power supply is connected to the AC output terminal of the power conversion module. Or,

[0104] The power supply is arranged outside the inverter, and the charging input terminal of the power supply is connected to the power grid system corresponding to the power conversion module.

[0105] Figure 8 is the seventh structural schematic diagram of the inverter of an optional embodiment of the present disclosure. As shown in Figure 8, the inverter is internally provided with a power conversion module, a controller, a signal transmitter including a signal drive module and a signal control module, a mutual inductor, a remote control switch, a sampling circuit and a power supply, and an emergency stop switch.

[0106] Among them, one end of the power conversion module is connected to the photovoltaic DC input line, and the other end is connected to the AC output line. The controller obtains the power supply end signal of the signal transmitter through the sampling circuit. The emergency stop switch and the remote control switch are set between the power supply and the signal transmitter. The controller connects to and controls the remote control switch. The signal transmitter receives the control signal sent by the controller communication module, and can also generate a control signal through the internal signal control module, and generate a corresponding power carrier signal through the mutual inductor set on the photovoltaic DC input line. The power conversion module is powered by an external energy storage battery and receives control instructions from the controller. After the above-mentioned emergency stop switch is disconnected, the above-mentioned signal drive module is powered off and stops sending the opening instruction to the photovoltaic module, thereby shutting down the photovoltaic module.

[0107] Figure 9 is the eighth structural schematic diagram of an inverter of an optional embodiment of the present disclosure. As shown in Figure 9, it includes: a power conversion module, a controller, a signal transmitter including a signal drive module and a signal control module, a mutual inductor, a remote control switch, a sampling circuit, and an emergency stop switch are arranged inside the inverter.

[0108] The power conversion module is connected to the input power supply's input circuit at one end and the AC output circuit at the other. The controller acquires the power supply signal from the signal transmitter via a sampling circuit. The emergency stop switch and remote control switch are located between the power supply and the signal transmitter. The controller connects to and controls the remote control switch. The signal transmitter receives control signals from the controller's communication module and also generates control signals through an internal signal control module. It also generates corresponding power carrier signals through a transformer located on the input power supply's input circuit. The power conversion module is powered by the power supply and receives control commands from the controller. The power supply is located outside the inverter and is charged by the grid.

[0109] Through the above embodiment, the power supply is installed inside the inverter and charged by the AC output terminal, thereby reducing the difficulty of installing and wiring the inverter before actual use. Alternatively, the power supply can be installed outside the inverter and charged from the power grid, thereby reducing the hardware cost and size of the inverter.

[0110] FIG10 is a ninth structural diagram of an inverter according to an optional embodiment of the present disclosure. As shown in FIG10 , the inverter further includes:

[0111] The power supply is arranged outside the inverter, the first charging input terminal of the power supply is connected to the power grid system corresponding to the power conversion module, and the second charging input terminal of the power supply is connected to the emergency output port of the power conversion module.

[0112] A disconnect switch may be provided between the power conversion module and the corresponding power grid system, for disconnecting the power supply when the power grid system stops supplying power to the power supply, thereby charging the power supply through the emergency output port.

[0113] Through the above embodiment, the emergency output port of the above power conversion module is used to charge the above power supply, thereby ensuring the charging needs of the power supply in the event of a power outage in the power grid system, and further ensuring the emergency response capability of the inverter in the event of a power outage.

[0114] In an exemplary embodiment, FIG11 is a tenth structural diagram of an inverter according to an optional embodiment of the present disclosure. As shown in FIG11 , the inverter further includes:

[0115] The power supply end of the power conversion module is connected to the power supply.

[0116] Through the above embodiment, the power supply is connected to the power supply end of the power conversion module, so that the power supply supplies power to the entire inverter, thereby achieving the technical effect of reducing the power supply hardware cost of the inverter.

[0117] In an exemplary embodiment, FIG12 is an eleventh structural diagram of an inverter of an optional embodiment of the present disclosure. As shown in FIG12 , the power supply is also used to supply power to various power-consuming elements in the inverter, including the controller.

[0118] Through the above embodiment, the above power supply is used to power the entire inverter, thereby achieving the technical effect of reducing equipment costs.

[0119] In an exemplary embodiment, FIG13 is a twelfth structural diagram of an inverter according to an optional embodiment of the present disclosure. As shown in FIG13 , the inverter further includes an independent power supply.

[0120] The independent power supply is used to supply power to various power-consuming components in the inverter, and the power-consuming components include the controller.

[0121] The power-consuming element may also be an amplifier circuit in the inverter.

[0122] Through the above embodiment, the above power supply and the above independent power supply are used to respectively power the signal driving module and other power-consuming components in the inverter, thereby simplifying the circuit wiring method and ensuring the power supply needs of the inverter after the emergency stop switch is put into operation.

[0123] In an exemplary embodiment, FIG14 is a thirteenth structural diagram of an inverter according to an optional embodiment of the present disclosure. As shown in FIG14 , the inverter further includes an emergency stop switch.

[0124] The emergency stop switch is connected in series between the power supply end of the signal transmitter and the power supply.

[0125] The emergency stop switch is arranged inside the inverter.

[0126] Through the above embodiment, the emergency stop switch is arranged inside the inverter, so that the emergency stop switch and the inverter are designed as an integrated whole, which reduces the difficulty of wiring and placement.

[0127] In an exemplary embodiment, FIG15 is a fourteenth structural diagram of an inverter of an optional embodiment of the present disclosure. As shown in FIG15 , the power supply end of the signal transmitter is connected to the power supply through an emergency stop switch.

[0128] The emergency stop switch is arranged outside the inverter.

[0129] According to the above embodiment, the emergency stop switch is arranged outside the inverter, which can remove the position restriction of the inverter and the emergency stop switch and facilitate the setting of the emergency stop switch at a specific position.

[0130] According to another aspect of the embodiment of the present disclosure, a power supply system is also provided. FIG16 is a simplified structural diagram of the power supply system of the embodiment of the present disclosure. As shown in FIG16 , the system includes: an input power supply and an inverter of any of the above embodiments.

[0131] The output end of the input power supply is connected to the power conversion module of the inverter.

[0132] Through the above-described embodiments, the DC output power of the input power supply in the power supply system is supplied to the inverter of any of the above-described embodiments, where it is converted to AC power for output via the inverter's power conversion module. The input power supply includes photovoltaic modules and / or energy storage batteries. This solves the technical problem of providing a low-cost, easy-to-install inverter in the related art. By reusing the signal transmitter, controller, and power conversion module, some circuitry is reduced, hardware costs are lowered, and the wiring and installation process are simplified, thereby achieving the technical effect of reducing the cost and installation difficulty of the inverter.

[0133] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences from other embodiments. In particular, for system embodiments, since they are basically similar to method embodiments, the description is relatively simple. For relevant parts, refer to the partial description of the method embodiments. In this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0134] It should be noted that, unless there is a conflict, the embodiments and features of the embodiments in this disclosure may be combined with each other. This disclosure is not limited to any single aspect, nor to any single embodiment, nor to any combination and / or permutation of these aspects and / or embodiments. Moreover, each aspect and / or embodiment of this disclosure may be used alone or in combination with one or more other aspects and / or embodiments thereof.

[0135] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present disclosure, and they should all be included in the scope of the claims and description of the present disclosure.

Claims

1. An inverter, characterized in that, Comprising: A power conversion module, a controller, a signal transmitter, and a mutual inductor; The power conversion module is connected to the DC output line of the input power supply and is used to convert the direct current input by the input power supply into alternating current; The controller is connected to the power conversion module and is used to control the current conversion of the power conversion module; The power supply end of the signal transmitter is connected to a power supply; The signal output end of the signal transmitter is connected to the mutual inductor and is used to drive the mutual inductor to send a power line carrier signal to the input power supply; The mutual inductor is arranged on the DC output line of the input power supply.

2. The inverter according to claim 1, wherein Further comprising: The controller is connected to the power supply end of the signal transmitter through a sampling circuit and is used to collect the power supply signal of the signal transmitter.

3. The inverter according to claim 2, characterized in that Further comprising: A remote control switch; The remote control switch is connected in series between the power supply end of the signal transmitter and the power supply; The controller is connected to the remote control switch and is used to disconnect the remote control switch when the controller receives a shutdown instruction sent by a remote end.

4. The inverter according to any one of claims 1-3, characterized in that, The signal transmitter includes: a signal control module and a signal drive module; The signal control module is used to generate a control instruction and send it to the signal drive module.

5. The inverter according to any one of claims 1 to 3, characterized in that, The signal transmitter includes: a signal drive module; The controller is communicatively connected to the signal drive module and is used to instruct the signal drive module to shut down through a communication signal.

6. The inverter according to any one of claims 1-3, characterized in that, The signal transmitter includes: a signal drive module; The controller is electrically connected to the signal drive module and is used to generate a control instruction and send it to the signal drive module.

7. The inverter according to any one of claims 1-3, characterized in that The power line carrier signal includes at least one of the following control instructions: a start instruction, a stop instruction, and an output power setting instruction of the input power supply.

8. The inverter according to any one of claims 1-3, characterized in that The power supply is arranged inside the inverter, and the charging input end of the power supply is connected to the AC output end of the power conversion module; or, The power supply is arranged outside the inverter, and the charging input end of the power supply is connected to the corresponding power grid system of the power conversion module.

9. The inverter according to any one of claims 1-3, characterized in that The power supply is arranged outside the inverter, the first charging input end of the power supply is connected to the corresponding power grid system of the power conversion module, and the second charging input end of the power supply is connected to the emergency output port of the power conversion module.

10. The inverter according to any one of claims 1 to 3, characterized in that, Further comprising: The power supply end of the power conversion module is connected to the power supply.

11. The inverter according to any one of claims 1-3, characterized in that The power supply is further used to supply power to each power-consuming component in the inverter, and the power-consuming components include the controller.

12. The inverter according to any one of claims 1 to 3, characterized in that Further comprising: An independent power supply; The independent power supply is used to supply power to each power-consuming component in the inverter, and the power-consuming components include the controller.

13. The inverter according to any one of claims 1 to 3, characterized in that, Further comprising: An emergency stop switch; The emergency stop switch is connected in series between the power supply end of the signal transmitter and the power supply; The emergency stop switch is arranged inside the inverter.

14. The inverter according to any one of claims 1-3, characterized in that The power supply terminal of the signal transmitter is connected to the power supply through an emergency stop switch; The emergency stop switch is arranged outside the inverter.

15. The inverter according to any one of claims 1-3, characterized in that The input power supply includes at least one of the following power supplies: a photovoltaic module, a storage battery.

16. A power supply system, characterized in that, Comprising: An input power supply and the inverter according to any one of claims 1-3; The output terminal of the input power supply is connected to the power conversion module of the inverter; The input power supply includes at least one of the following power supplies: a photovoltaic module, a storage battery.

Images