Starting circuit of energy storage converter and energy storage converter system

Abstract

The utility model discloses a starting circuit of an energy storage converter and an energy storage converter system. The starting circuit of the energy storage converter comprises a remote power-on module used for switching on or off according to a remote control signal; the first end of the first energy storage module is connected with the power supply input end, and the second end of the first energy storage module is connected with the first end of the remote power-on module; the first end of the switch module is connected with the power input end, the second end of the switch module is connected with the power output end, the control end of the switch module is connected with the second end of the remote power-on module, and the first energy storage module is used for outputting a first electric signal to the control end of the switch module when the remote power-on module is started; and the switch module is used for conducting when the control end receives the first electric signal output by the first energy storage module, and connecting the power supply input end and the power supply output end. According to the technical scheme provided by the embodiment of the utility model, the remote starting effect of the energy storage converter is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power equipment technical field especially relates to a starting circuit and energy storage converter system of energy storage converter. BACKGROUND

[0002] In the microgrid system, the energy storage converter cannot automatically start the system under the power grid outage condition, which easily leads to the paralysis of the microgrid system. For remote mountainous areas or unattended microgrid power stations, if the energy storage converter is remotely controlled to start, it has a relatively complex starting process and poor remote starting effect. SUMMARY

[0003] The utility model provides a starting circuit and energy storage converter system of energy storage converter to solve the problem of poor remote starting effect of energy storage converter.

[0004] According to one aspect of the utility model, a starting circuit of an energy storage converter is provided, comprising:

[0005] A remote power-on module is used to start or shut down according to a remote control signal.

[0006] A first energy storage module is connected to a power input end at a first end, and connected to a first end of the remote power-on module at a second end.

[0007] A switch module is connected to the power input end at a first end, connected to a power output end at a second end, and connected to a second end of the remote power-on module at a control end. The first energy storage module is used to output a first electrical signal to the control end of the switch module when the remote power-on module is started. The switch module is used to conduct when the first electrical signal output by the first energy storage module is received at the control end, and connect the power input end and the power output end.

[0008] Optionally, the first energy storage module comprises a first voltage stabilizing tube and a first capacitor.

[0009] The first capacitor is connected between the power input end and the power output end, and the first voltage stabilizing tube and the first capacitor are connected in parallel. The first voltage stabilizing tube is used to stabilize the voltage of the first capacitor, and the first capacitor is used to output the first electrical signal when the remote power-on module is started.

[0010] Optionally, the remote power-on module comprises:

[0011] An optical coupler, a first end of the optical coupler is connected with a second end of the first energy storage module, a second end of the optical coupler is connected with a control end of the switch module, and the control end of the optical coupler is used for receiving the remote control signal and turning on or turning off according to the remote control signal.

[0012] Optionally, the starting circuit of the energy storage converter further comprises:

[0013] A second energy storage module, a first end of the second energy storage module is connected with the second end of the first energy storage module through the remote power-on module, the first end of the second energy storage module is also connected with the control end of the switch module, and a second end of the second energy storage module is connected with the power output end.

[0014] The second energy storage module is used for outputting the first electric signal to the second energy storage module through the first energy storage module when the remote power-on module is turned on, and outputting a second electric signal to the control end of the switch module through the second energy storage module when the remote power-on module is turned off.

[0015] Optionally, the second energy storage module comprises a second capacitor.

[0016] A first end of the second capacitor is connected with the second end of the first energy storage module, the first end of the second capacitor is also connected with the control end of the switch module, and a second end of the second capacitor is connected with the power output end; the second capacitor is used for charging when the remote power-on module is turned on, and outputting the second electric signal to the control end of the switch module when the remote power-on module is turned off.

[0017] Optionally, the starting circuit of the energy storage converter further comprises:

[0018] An overvoltage protection module is connected in parallel between the first end and the second end of the switch module, and the overvoltage protection module is used for limiting the voltage value of the switch module when the voltage between the first end and the second end of the switch module exceeds a set voltage threshold.

[0019] Optionally, the overvoltage protection module comprises a second voltage stabilizing tube and a first triode.

[0020] A first end of the second voltage stabilizing tube is connected with the power input end, a second end of the second voltage stabilizing tube is connected with a control end of the first triode, a first end of the first triode is connected with a second end of the remote power-on module, and a second end of the first triode is connected with the power output end; the second voltage stabilizing tube is used for breaking down when the switch module is overvoltage, turning on the first triode and outputting a fixed voltage, and limiting the voltage between the first end and the second end of the switch module.

[0021] Optionally, the starting circuit of the energy storage converter further comprises:

[0022] The manual power-on module is connected in parallel with the remote power-on module and is used for manually controlling the opening or closing.

[0023] Optionally, the starting circuit of the energy storage converter further comprises:

[0024] The slow start module and the reverse connection prevention module are connected in series between the first end of the slow start module and the second end of the switch module.

[0025] The first end of the slow start module is connected with the second end of the switch module, the second end of the slow start module is connected with the first end of the reverse connection prevention module, and the second end of the reverse connection prevention module is connected with the power output end.

[0026] According to another aspect of the utility model, a kind of energy storage converter system is provided, comprising the starting circuit of energy storage converter described in any embodiment of the utility model;

[0027] The energy storage converter system further comprises: a starting circuit, an energy storage converter, a first converter switch, a second converter switch, a DC power supply and an AC power supply;The power input end of the starting circuit is connected with the first end of the DC power supply, the power output end of the starting circuit is connected with the first input end of the energy storage converter, the output end of the energy storage converter is connected with the AC power supply, the first converter switch is connected in parallel between the power input end and the power output end of the starting circuit, the first end of the second converter switch is connected with the second end of the DC power supply, and the second end of the second converter switch is connected with the second input end of the energy storage converter.

[0028] The starting circuit is used to charge the bus capacitor in the energy storage converter;The first converter switch and the second converter switch are used to close after the bus capacitor is charged.

[0029] The technical scheme provided by the utility model embodiment realizes the control of remote starting machine of energy storage converter by setting remote power-on module. And by setting first energy storage module, stable electric signal is provided to switch module when remote power-on module is opened, so that switch module can be stably turned on, and charging of bus capacitor is realized. When starting machine of energy storage converter, the utility model does not need to carry out switch operation on site, and only needs to realize remote starting machine of energy storage converter by the mode of remote sending remote control signal, and the starting machine mode is convenient and fast, and has good starting machine effect.

[0030] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of the drawings.

[0032] Figure 1 is a structural schematic diagram of a starting circuit of an energy storage converter provided by the embodiments of the present application;

[0033] Figure 2 is a structural schematic diagram of another starting circuit of an energy storage converter provided by the embodiments of the present application;

[0034] Figure 3 is a structural schematic diagram of an energy storage converter system provided by the embodiments of the present application. DETAILED DESCRIPTION

[0035] In order to make the person skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0036] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0037] The utility model embodiment provides a kind of starting circuit of energy storage converter, Figure 1 It is the structure diagram of the starting circuit of energy storage converter provided in the utility model embodiment.Reference Figure 1 The starting circuit of energy storage converter includes: remote power module 1, first energy storage module 2 and switch module 3.Remote power module 1 is used to start or shut off according to remote control signal.The first end of first energy storage module 2 is connected with power input end 21, and the second end of first energy storage module 2 is connected with the first end of remote power module 1.The first end of switch module 3 is connected with power input end 21, and the second end of switch module 3 is connected with power output end 22, and the control end of switch module 3 is connected with the second end of remote power module 1, and first energy storage module 2 is used to output first electric signal to the control end of switch module 3 when remote power module 1 starts;Switch module 3 is used to conduct when receiving the first electric signal that first energy storage module 2 outputs in control end, and the connection between power input end 21 and power output end 22 is connected.

[0038] Among them, energy storage converter needs to pre-charge bus capacitor in energy storage converter before starting, and only after charging is completed, normal starting can be carried out.When micro-grid system cannot generate electricity, energy storage converter needs to start cold start function.For example, the starting circuit of energy storage converter can be set, and power input end 21 is connected to battery, and the starting circuit of energy storage converter can be connected with energy storage converter.When switch module 3 is conducted, the starting circuit of energy storage converter can transmit the electric energy of power input end 21 to energy storage converter, and then charge bus capacitor in energy storage converter to achieve the starting requirement of energy storage converter.

[0039] Specifically, first energy storage module 2 can store the electric energy input by power input end 21, and stabilize the voltage as first electric signal.Exemplarily, first energy storage module 2 can step-down the electric energy input by power input end 21, so that the voltage value can reach the conduction condition of switch module 3 and will not exceed the maximum withstand voltage of control end of switch module 3.When starting of energy storage converter needs to be executed, remote power module 1 can receive remote control signal remotely sent by rear-end device, and start according to the remote control signal, so that first energy storage module 2 can transmit the stored electric energy to the control end of switch module 3 through remote power module 1.Switch module 3 is conducted due to receiving first electric signal output by first energy storage module 2, and then connects the connection between power input end 21 and power output end 22, so that the electric energy of power input end 21 can be transmitted to energy storage converter and charge bus capacitor.Exemplarily, rear-end device can be host computer, main station and other devices.

[0040] The utility model discloses an embodiment provides the technical scheme, through setting remote power module 1, realized the control of energy storage converter remote starting machine. Still through setting first energy storage module 2, when remote power module 1 opens, provide stable electric signal to switch module 3, make switch module 3 can be stable and turned on, further realized the charging of bus capacitor. The utility model discloses when starting machine of energy storage converter, need not on -the -spot switch operation, only needs to realize the remote starting machine of energy storage converter through the mode of remote sending remote control signal, and starting machine mode is convenient and fast, has good starting machine effect.

[0041] Figure 2 It is another energy storage converter starting circuit structure diagram provided in the embodiments of the utility model. Figure 2 On the basis of each embodiment, optionally, the first energy storage module 2 includes: a first voltage stabilizing tube ZD1 and a first capacitor C1. The first capacitor C1 is connected between the power input end 21 and the power output end 22, and the first voltage stabilizing tube ZD1 is connected in parallel with the first capacitor C1; the first voltage stabilizing tube ZD1 is used to stabilize the voltage of the first capacitor C1, and the first capacitor C1 is used to output the first electric signal when the remote power module 1 is turned on.

[0042] The power input end 21 has a relatively high voltage, and if the voltage is directly applied to the switch module 3, the switch module 3 may be damaged. The first capacitor C1 can store the electric energy input by the power input end 21 and stabilize the electric energy of the first capacitor C1 to the first electric signal through the first voltage stabilizing tube ZD1. For example, the first voltage stabilizing tube ZD1 can stabilize the electric energy of the first capacitor C1 to a voltage value of 16V. When the remote power module 1 is turned on, the first capacitor C1 can apply a voltage of 16V to the switch module 3, so that the switch module is turned on.

[0043] The power input end 21 can also be connected with the first capacitor C1 after being connected with the first resistor R1 and the second resistor R2 in series, and the first resistor R1 and the second resistor R2 can be used to limit the current input by the power input end 21 to the first capacitor C1, so as to prevent the first capacitor C1 from being broken down due to excessive current. The third resistor R3 can be connected in series between the first capacitor C1 and the switch module 3, and the third resistor R3 is used to limit the current input by the first capacitor C1 to the switch module 3, so as to prevent the first capacitor C1 from impacting the switch module 3.

[0044] Reference is still made to Figure 2 On the basis of each embodiment, optionally, the remote power module 1 includes: an optical coupler U1, a first end of the optical coupler U1 is connected with a second end of the first energy storage module 2, a second end of the optical coupler U1 is connected with a control end of the switch module 3, and the control end of the optical coupler U1 is used to receive a remote control signal and start or stop according to the remote control signal.

[0045] The remote control signal can be input to the control terminal of the optocoupler U1 through the fourth resistor R4. The optocoupler U1 can be composed of a light-emitting diode (LED) and a phototransistor. When the optocoupler U1 receives a remote control signal, the LED emits light of appropriate intensity, which illuminates the phototransistor. The phototransistor generates current when illuminated, thus turning on the optocoupler U1. After the optocoupler U1 is turned on, the first electrical signal output from the first energy storage module 2 can be transmitted to the switching module 3 through the phototransistor. The optocoupler U1 has good electrical isolation and anti-interference capabilities, and high reliability, allowing it to be effectively turned on or off upon receiving a remote control signal.

[0046] Continue to refer to Figure 2 Based on the above embodiments, optionally, the starting circuit of the energy storage converter further includes a second energy storage module 4. The first end of the second energy storage module 4 is connected to the second end of the first energy storage module 2 via the remote power-on module 1. The first end of the second energy storage module 4 is also connected to the control terminal of the switch module 3, and the second end of the second energy storage module 4 is connected to the power output terminal 22. The second energy storage module 4 is used to output a first electrical signal to the second energy storage module 4 via the first energy storage module 2 when the remote power-on module 1 is turned on, and to output a second electrical signal to the control terminal of the switch module 3 via the second energy storage module 4 when the remote power-on module 1 is turned off.

[0047] In some cases, when the remote power-on module 1 is only open for a short time, the bus capacitor in the energy storage converter may not be fully charged during the conduction time of the switch module 3. By setting a second energy storage module 4, a first electrical signal can be simultaneously output to the second energy storage module 4 when the first energy storage module 2 outputs a first electrical signal to the switch module 3, allowing the second energy storage module 4 to charge according to the first electrical signal. When the first energy storage module 2 is turned off, the second energy storage module 4 can output a second electrical signal to the switch module 3 to continue supplying power, keeping the switch module 3 in a conducting state. This ensures that the bus capacitor in the energy storage converter can be fully charged, improving the reliability of the energy storage converter's startup circuit.

[0048] Continue to refer to Figure 2 Based on the above embodiments, optionally, the second energy storage module 4 includes a second capacitor C2. The first end of the second capacitor C2 is connected to the second end of the first energy storage module 2, and the first end of the second capacitor C2 is also connected to the control terminal of the switch module 3. The second end of the second capacitor C2 is connected to the power output terminal 22. The second capacitor C2 is used to charge when the remote power-on module 1 is turned on, and to output a second electrical signal to the control terminal of the switch module 3 when the remote power-on module 1 is turned off.

[0049] Exemplarily, the start-up time of the remote power-up module 1 can be one second or two seconds. The remote power-up module 1 outputs the first electrical signal to the control end of the switch module 3 and to the second capacitor C2 within one second or two seconds. When the remote power-up module 1 is turned off, the second capacitor C2 starts discharging and outputs the second electrical signal to the control end of the switch module 3, so that the switch module 3 can continue to keep the conducting state, and thus the bus capacitor in the energy storage converter can complete the charging.

[0050] The second capacitor C2 can be connected in parallel with a fifth resistor R5 and a third capacitor C3. When the charging of the bus capacitor is completed, the fifth resistor R5 releases the excess electrical energy in the second capacitor C2. The third capacitor C3 can be used to reduce the oscillation caused by the unstable current and voltage at the moment when the remote power-up module 1 is started, and thus stabilize the output voltage.

[0051] Continuing to refer to Figure 2 On the basis of the above embodiments, optionally, the start-up circuit of the energy storage converter further comprises a over-voltage protection module 5 connected in parallel between the first end and the second end of the switch module 3, and the over-voltage protection module 5 is configured to limit the voltage value of the switch module 3 when the voltage between the first end and the second end of the switch module 3 exceeds a set voltage threshold.

[0052] Exemplarily, the switch module 3 can comprise a first transistor Q1, the first end of the first transistor Q1 is connected with the power input end 21, the second end of the first transistor Q1 is connected with the power output end 22, and the control end of the first transistor Q1 is connected with the second end of the remote power-up module 1. When the first capacitor C1 or the second capacitor C2 supplies power to the first transistor Q1, the first transistor Q1 can be turned on instantaneously and reach the over-saturation state, so that the first transistor Q1 is completely turned on and the voltage difference between the two ends is almost 0.

[0053] With the gradual decrease of the second electrical signal voltage provided by the second capacitor C2, the opening degree of the first transistor Q1 gradually decreases and gradually exits the over-saturation state and enters the resistance region. At this time, the voltage difference between the first end and the second end of the first transistor Q1 gradually increases, which is easy to cause the first transistor Q1 to heat and other unstable conditions. In order to protect the safe operation of the first transistor Q1, when the voltage difference between the first end and the second end of the first transistor Q1 exceeds a set voltage threshold, the over-voltage protection module 5 is turned on, and the turn-on voltage of the over-voltage protection module 5 is within the range of the set voltage threshold. Therefore, the over-voltage protection module 5 can limit the voltage value of the switch module 3. Through this setting mode, when the voltage difference between the first end and the second end of the first transistor Q1 exceeds the set voltage threshold, the voltage value of the first transistor Q1 can be limited by the over-voltage protection module 5, so that the first transistor Q1 is quickly turned off due to the voltage limitation, and the heating and even damage of the first transistor Q1 caused by not being in the over-saturation state are prevented.

[0054] Continue to refer to Figure 2 Based on the above embodiments, optionally, the overvoltage protection module 5 includes: a second Zener diode ZD2 and a first transistor T1. The first end of the second Zener diode ZD2 is connected to the power input terminal 21, the second end of the second Zener diode ZD2 is connected to the control terminal of the first transistor T1, the first end of the first transistor T1 is connected to the second end of the remote power-on module 1, and the second end of the first transistor T1 is connected to the power output terminal 22; the second Zener diode ZD2 is used to break down when the switching module 3 is overvoltaged, turn on the first transistor T1 and output a fixed voltage, limiting the voltage between the first and second terminals of the switching module 3.

[0055] The power input terminal 21 can be connected to the second Zener diode ZD2 via a seventh resistor R7. A first diode D1 is connected in parallel with the seventh resistor R7 to prevent reverse current input to the power input terminal 21. A fourth capacitor C4 and a third Zener diode ZD3 are connected in parallel between the first terminal of the second Zener diode ZD2 and the second terminal of the first transistor T1. The seventh resistor R7, the fourth capacitor C4, and the third Zener diode ZD3 are used to regulate the voltage output from the power input terminal 21.

[0056] When the first transistor Q1 is not in an oversaturated state, the voltage difference between its first and second terminals gradually increases. When this voltage difference reaches a set voltage threshold, the second Zener diode ZD2 is reverse-biased, and the first transistor T1 quickly turns on. Because the conduction voltage between the control terminal and the second terminal of the first transistor T1 is small, the voltage between the first and second terminals of the first transistor Q1 can be limited within this voltage range. At this time, the first transistor Q1 is turned off due to the excessively small voltage difference.

[0057] The first transistor Q1 remains in an oversaturated state for a relatively long time, which is sufficient for the bus capacitor in the energy storage converter to complete charging. Therefore, turning off the first transistor Q1 will not affect the normal startup of the energy storage converter.

[0058] Continue to refer to Figure 2 Based on the above embodiments, optionally, the starting circuit of the energy storage converter further includes: a manual power-on module 6. This module is connected in parallel with the remote power-on module 1 and is used for manual control of starting or stopping.

[0059] The manual power-on module 6 can serve as a backup for the remote power-on module 1, with the two providing redundancy. When the remote power-on module 1 fails, it can be manually turned on or off via the manual power-on module 6, offering enhanced safety and stability.

[0060] Continue to refer to Figure 2On the basis of the above embodiments, the starting circuit of the energy storage converter optionally further comprises a slow start module 7 and an anti-reverse connection module 8. The first end of the slow start module 7 is connected between the second end of the switch module 3 and the second end of the anti-reverse connection module 8, and the second end of the anti-reverse connection module 8 is connected to the power output end 22; the slow start module 7 is used to limit the current output by the switch module 3, and the anti-reverse connection module 8 is used to prevent reverse current from being input to the power input end 21.

[0061] The slow start module 7 can comprise a seventh resistor R7, which is used to limit the current input to the bus capacitor in the energy storage converter from the power input end 21, so that the current input to the bus capacitor can gradually increase, thereby protecting the bus capacitor and achieving slow start of the energy storage converter.

[0062] The anti-reverse connection module 8 can comprise a second diode D2. When the power input end 21 outputs power by connecting a battery, if the connection of the battery is reversed, the energy storage converter cannot be effectively charged, and the bus capacitor in the energy storage converter may even be reverse discharged, thereby damaging the battery. Therefore, by arranging the second diode D2, reverse current can be prevented from being input to the power input end 21, thereby improving the safe operation of the battery.

[0063] The utility model embodiment further provides a kind of energy storage converter system. The system includes the starting circuit of energy storage converter provided in any embodiment of the utility model. It has similar beneficial effects with the starting circuit of energy storage converter, and no longer elaborates. Figure 3 The structure diagram of the energy storage converter system provided in the utility model embodiment is shown in Figure 1. Figure 3 The energy storage converter system further comprises a starting circuit 10, an energy storage converter 11, a first converter switch K1, a second converter switch K2, a direct-current power supply 12 and an alternating-current power supply 13. The power input end of the starting circuit 10 is connected to the first end of the direct-current power supply 12, the power output end of the starting circuit 10 is connected to the first input end of the energy storage converter 11, the output end of the energy storage converter 11 is connected to the alternating-current power supply 13, the first converter switch K1 is connected in parallel between the power input end and the power output end of the starting circuit 10, the first end of the second converter switch K2 is connected to the second end of the direct-current power supply 12, and the second end of the second converter switch K2 is connected to the second input end of the energy storage converter 11; the starting circuit 10 is used to charge the bus capacitor C in the energy storage converter; the first converter switch K1 and the second converter switch K2 are used to be closed after the bus capacitor C is charged.

[0064] The energy storage converter 11 can rectify or invert the electric energy through the second transistor Q2, the third transistor Q3, the fourth transistor Q4, the fifth transistor Q5, the sixth transistor Q6 and the seventh transistor Q7. Before the energy storage converter 11 starts, the bus capacitor C in the energy storage converter 11 needs to be pre-charged, and after the charging is completed, the normal starting of the energy storage converter 11 can be performed.

[0065] Therefore, before the energy storage converter 11 starts, the starting circuit 10 is first put into operation, and the DC power supply 12 charges the bus capacitor C through the starting circuit 10. The starting circuit 10 can be started in a remote control mode. After the bus capacitor C is fully charged, the first converter switch K1 and the second converter switch K2 can be closed, so that the energy storage converter can be normally started.

[0066] It should be understood that the various forms of the flow shown above can be reordered, added or deleted steps. For example, the steps described in the present application can be executed in parallel, sequentially or in different order, as long as the desired results of the technical solutions of the present application can be achieved, which is not limited herein.

[0067] The above specific embodiments do not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A start-up circuit for an energy storage converter, characterized by, The application relates to a starting circuit of a storage converter. The starting circuit comprises a remote power-on module, a first storage module, a switch module and a light coupler. The remote power-on module is used for starting or stopping according to a remote control signal. The first end of the first storage module is connected with a power input end, and the second end of the first storage module is connected with the first end of the remote power-on module.

2. The starting circuit for an energy storage inverter of claim 1, wherein, The first end of the switch module is connected with the power input end, the second end of the switch module is connected with a power output end, and the control end of the switch module is connected with the second end of the remote power-on module. The first storage module is used for outputting a first electric signal to the control end of the switch module when the remote power-on module is started.

3. The starting circuit for an energy storage inverter of claim 1, wherein, The switch module is used for conducting when the first electric signal output by the first storage module is received at the control end, and connecting the power input end with the power output end. The first storage module comprises a first voltage stabilizing tube and a first capacitor.

4. The starting circuit for an energy storage inverter of claim 1, wherein, The first capacitor is connected between the power input end and the power output end, and the first voltage stabilizing tube is connected in parallel with the first capacitor. The first voltage stabilizing tube is used for stabilizing the voltage of the first capacitor. The first capacitor is used for outputting the first electric signal when the remote power-on module is started.

5. The starting circuit for an energy storage inverter of claim 4, wherein, The remote power-on module comprises the light coupler. The first end of the light coupler is connected with the second end of the first storage module, the second end of the light coupler is connected with the control end of the switch module, and the control end of the light coupler is used for receiving the remote control signal and starting or stopping according to the remote control signal.

6. The starting circuit for an energy storage inverter of claim 1, wherein, The starting circuit of the storage converter further comprises a second storage module. The first end of the second storage module is connected with the second end of the first storage module through the remote power-on module, and the first end of the second storage module is also connected with the control end of the switch module.

7. The starting circuit for an energy storage inverter of claim 6, wherein, The second end of the second storage module is connected with the power output end. The second storage module is used for outputting the first electric signal to the second storage module through the first storage module when the remote power-on module is started, and outputting a second electric signal to the control end of the switch module through the second storage module when the remote power-on module is stopped. The second storage module comprises a second capacitor. The first end of the second capacitor is connected with the second end of the first storage module and the control end of the switch module, and the second end of the second capacitor is connected with the power output end. The second capacitor is used for charging when the remote power-on module is started, and outputting the second electric signal to the control end of the switch module when the remote power-on module is stopped. The starting circuit of the storage converter further comprises an overvoltage protection module. The overvoltage protection module is connected in parallel between the first end and the second end of the switch module. The overvoltage protection module is used for limiting the voltage value of the switch module when the voltage between the first end and the second end of the switch module exceeds a set voltage threshold. The overvoltage protection module comprises a second voltage stabilizing tube and a first triode. The second voltage stabilizing tube is connected in parallel with the first triode. The first end of the second voltage stabilizing tube is connected with the power input end, the second end of the second voltage stabilizing tube is connected with the control end of the first triode, the first end of the first triode is connected with the second end of the remote power-on module, and the second end of the first triode is connected with the power output end; the second voltage stabilizing tube is used for breaking down when the switch module is overvoltage, turning on the first triode and outputting a fixed voltage, and limiting the voltage between the first end and the second end of the switch module.

8. The starting circuit for an energy storage inverter of claim 1, wherein, The starting circuit of the energy storage converter further comprises: A manual power-on module is connected in parallel with the remote power-on module and is used for manually controlling the start or shutdown.

9. The starting circuit for an energy storage inverter of claim 1, wherein, The starting circuit of the energy storage converter further comprises: A slow start module and an anti-reverse connection module; The first end of the slow start module is between the second end of the switch module, the second end of the slow start module is connected with the first end of the anti-reverse connection module, and the second end of the anti-reverse connection module is connected with the power output end; the slow start module is used for limiting the current output by the switch module, and the anti-reverse connection module is used for preventing reverse current from being input into the power input end.

10. An energy storage converter system, characterized by The starting circuit of the energy storage converter comprises the starting circuit of any one of claims 1-9; The energy storage converter system further comprises a starting circuit, an energy storage converter, a first converter switch, a second converter switch, a direct-current power supply and an alternating-current power supply; the power input end of the starting circuit is connected with the first end of the direct-current power supply, the power output end of the starting circuit is connected with the first input end of the energy storage converter, the output end of the energy storage converter is connected with the alternating-current power supply, the first converter switch is connected in parallel between the power input end and the power output end of the starting circuit, the first end of the second converter switch is connected with the second end of the direct-current power supply, and the second end of the second converter switch is connected with the second input end of the energy storage converter; The starting circuit is used for charging a bus capacitor in the energy storage converter; and the first converter switch and the second converter switch are used for being closed after the bus capacitor is fully charged.

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