Power supply control circuit and mobile electric cabinet

Abstract

The utility model relates to the technical field of power supply, and discloses a power supply control circuit and a mobile electric cabinet, comprising an energy storage module used for storing electric energy; the first energy storage converter module is connected with the energy storage module, the power utilization end and the first power supply end, and the first energy storage converter module is used for transmitting electric energy among the energy storage module, the power utilization end and the first power supply end; the second energy storage current transformation module is connected with the energy storage module, the first energy storage current transformation module and a second power supply end, and the second energy storage current transformation module is used for receiving the electric energy of the second power supply end and transmitting the electric energy of the second power supply end to the first energy storage current transformation module and the energy storage module; and the energy control module is connected with the first energy storage conversion module and the second energy storage conversion module. The problems that the prior art can only be used under a fixed working condition, and the electricity utilization convenience of a user is reduced are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply technical field, concretely relates to power supply control circuit and mobile power cabinet. BACKGROUND

[0002] The electric device plays a very important role in the construction site, if the construction site is in the area with electricity, through the electric device directly uses the power grid power supply, in the area without electricity, can only use through the diesel generator power generation. Further, the electric device of the prior art can only be used in fixed working conditions, greatly reduces the convenience of user electricity. For example, when generating electricity through the diesel generator, it needs to be used in the grid-connected mode, but the fixed power value is output to the load in the grid-connected mode, and the power of the load changes in real time according to the actual situation, resulting in that the diesel generator cannot be directly used for power generation in the grid-connected mode. SUMMARY

[0003] Therefore, the utility model provides a kind of power supply control circuit and mobile power cabinet to solve the problem that prior art can only be used in fixed working conditions, reduce the convenience of user electricity.

[0004] Firstly, the utility model provides a kind of power supply control circuit, and the power supply control circuit includes:

[0005] Energy storage module, the energy storage module is used to store electric energy;

[0006] First energy storage converter module, the first energy storage converter module is connected with the energy storage module, at least one electric terminal and first power supply terminal, and the first energy storage converter module is used to transmit electric energy between the energy storage module, the electric terminal and first power supply terminal;

[0007] At least one second energy storage converter module, the second energy storage converter module is connected with the energy storage module, first energy storage converter module and second power supply terminal, and the second energy storage converter module is used to receive the electric energy of the second power supply terminal and transmit the electric energy of the second power supply terminal to the first energy storage converter module and energy storage module;

[0008] Wherein, the first power supply terminal and the second power supply terminal are used to connect photovoltaic generator, diesel generator or power grid;

[0009] Energy control module, the energy control module is connected with first energy storage converter module and second energy storage converter module respectively, is used to send first control signal to the first energy storage converter module and second control signal to the second energy storage converter module, and wherein, the first control signal is used to turn on and turn off the input of the first power supply terminal, and the second control signal is used to turn on and turn off the input of the second power supply terminal.

[0010] The power supply control circuit provided by the utility model, through energy control module controls first energy storage current conversion module and second energy storage current conversion module respectively, through first energy storage current conversion module, energy storage module, power terminal and first power supply terminal between the electric energy transmission, namely, the electric energy transmission of first power supply terminal to energy storage module and power terminal use, at the same time, second energy storage current conversion module will electric energy transmission of second power supply terminal to first energy storage current conversion module and energy storage module, so that energy storage module will electric energy of second power supply terminal store, or through first energy storage current conversion module to power terminal use. Thus, through the switching of grid-connected mode and off-grid mode of first energy storage current conversion module and second energy storage current conversion module, and the electric network, photovoltaic generator and diesel generator can be connected to first power supply terminal and second power supply terminal respectively, the use of photovoltaic generator and diesel generator in the area with power grid and the area without power grid can be adapted. Can be used in various working conditions, greatly improve the convenience of user power consumption.

[0011] In an alternative embodiment, the first energy storage current conversion module comprises:

[0012] At least one first energy storage current converter, the first end of the first energy storage current converter is connected with the energy storage module, the second end of the first energy storage current converter is connected with at least one power terminal, and the first energy storage current converter is used to send the electric energy of the first power supply terminal to the energy storage module for storage and supply the electric energy of the energy storage module and the second power supply terminal to the power terminal;

[0013] A first circuit breaker, the first end of the first circuit breaker is connected with the second end of the first energy storage current converter, the second end of the first circuit breaker is connected with the first power supply terminal, and the first circuit breaker is used to receive the first control signal.

[0014] In an alternative embodiment, the first energy storage current conversion module comprises:

[0015] A transformer, the first end of the transformer is connected with the second end of the first energy storage current converter, and the second end of the transformer is connected with the first end of the first circuit breaker.

[0016] In an alternative embodiment, the second energy storage current conversion module comprises:

[0017] At least one second energy storage current converter, the first end of the second energy storage current converter is connected with the first energy storage current conversion module and the energy storage module, and the second energy storage current converter is used to send the electric energy to the energy storage module for storage and the first energy storage current conversion module;

[0018] a second circuit breaker, a first end of the second circuit breaker being connected with the second end of the second energy storage converter, a second end of the second circuit breaker being connected with the second power supply end, the second circuit breaker being configured to receive the second control signal.

[0019] In an alternative embodiment, the power supply control circuit comprises:

[0020] a first surge protector, a first end of the first surge protector being connected with the first power supply end, a second end of the first surge protector being grounded;

[0021] a second surge protector, a first end of the second surge protector being connected with the second power supply end, a second end of the second surge protector being grounded.

[0022] In an alternative embodiment, the power supply control circuit comprises:

[0023] at least one third circuit breaker, a first end of the third circuit breaker being connected with the first energy storage converter, a second end of the third circuit breaker being connected with the power consumption end.

[0024] In an alternative embodiment, the power consumption end comprises a charging pile.

[0025] In an alternative embodiment, the power supply control circuit comprises:

[0026] a system operation interface, the system operation interface being provided with a first knob, a second knob, a third knob and a fourth knob;

[0027] the first knob being configured to switch a remote control mode and a local control mode of the first energy storage converter;

[0028] the second knob being configured to switch a remote control mode and a local control mode of the second energy storage converter;

[0029] the third knob being configured to switch a grid-connected mode and an off-grid mode of the first energy storage converter;

[0030] the fourth knob being configured to switch a grid-connected mode and an off-grid mode of the second energy storage converter.

[0031] In an alternative embodiment, the energy storage module comprises:

[0032] at least one high-voltage box, a first end of the high-voltage box being connected with the first energy storage converter and the second energy storage converter respectively;

[0033] at least one battery cabinet, a first end of the battery cabinet being connected with a second end of the high-voltage box.

[0034] The utility model provides a mobile power consumption cabinet, mobile power consumption cabinet includes container, container is provided with above power supply control circuit. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in prior art, the following will briefly introduce the drawing needed to be used in the specific embodiment or prior art description, obviously, the drawing in the following description is some embodiments of the utility model, for ordinary skilled person in the art, can obtain other drawings according to these drawings without creative labor.

[0036] Figure 1 It is a power supply control circuit structural diagram according to the utility model embodiment,

[0037] Figure 2 It is another power supply control circuit structural diagram according to the utility model embodiment,

[0038] Figure 3 It is still another power supply control circuit structural diagram according to the utility model embodiment,

[0039] Figure 4 It is a power supply control circuit detailed structural diagram according to the utility model embodiment,

[0040] Figure 5 It is a power supply control circuit application schematic diagram according to the utility model embodiment. DETAILED DESCRIPTION

[0041] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment.Based on the embodiment in the utility model, all other embodiments obtained by ordinary skilled person in the art without creative labor belong to the scope of protection of the utility model.

[0042] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" is based on the orientation or position relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate with a particular orientation, therefore, cannot be understood as the limitation of the utility model.In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "installation", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, also can be the communication inside two elements, can be wireless connection, also can be wired connection.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0044] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as there is no conflict between them.

[0045] The electric device plays a very important role in the construction site, if the construction site is in the area with electricity, through the electric device directly using the power grid power supply, in the area without electricity, only through the diesel generator power generation is used.Further, the electric device of the prior art can only be used in fixed working conditions, greatly reduces the convenience of user electricity.For example, when generating electricity through the diesel generator, it needs to be used in the grid-connected mode, but the fixed power value is output in the grid-connected mode, while the power of the load changes in real time according to the actual situation, resulting in that the diesel generator cannot be directly used in the grid-connected mode.

[0046] For this, the embodiment provides a power supply control circuit, as shown in Figure 1 The power supply control circuit comprises:

[0047] The energy storage module 10 is used for storing electric energy;

[0048] Specifically, the energy storage module 10 is used for storing the electric energy transmitted by the first energy storage converter module 21 and for storing the electric energy transmitted by the second energy storage converter module 22, and optionally, the energy storage module 10 is a storage device.

[0049] The first energy storage converter module 21 is connected with the energy storage module 10, at least one electric terminal and the first power supply terminal, and is used for transmitting electric energy between the energy storage module 10, the electric terminal and the first power supply terminal;

[0050] Specifically, the first energy storage and conversion module 21 is a main power supply circuit, i.e., transmitting the electric energy transmitted by the first power supply end to the energy storage module 10 for storage, transmitting the electric energy transmitted by the first power supply end to the power consumption end, and transmitting the electric energy of the energy storage module 10 to the power consumption end. The power consumption end is used for connecting a load. Optionally, the first energy storage and conversion module 21 performs switching between direct current and alternating current, and controls charging and discharging of the battery. The first energy storage and conversion module 21 also performs switching between grid-connected mode and off-grid mode. The power consumption end is used for connecting a power consumption socket.

[0051] At least one second energy storage and conversion module 22 connected with the energy storage module 10, the first energy storage and conversion module 21 and the second power supply end, the second energy storage and conversion module 22 is used for receiving the electric energy of the second power supply end, and transmitting the electric energy of the second power supply end to the first energy storage and conversion module 21 and the energy storage module 10;

[0052] Specifically, the second energy storage and conversion module 22 transmits the electric energy of the second power supply end to the first energy storage and conversion module 21, the first energy storage and conversion module 21 transmits to the power consumption end, and the second energy storage and conversion module 22 transmits the electric energy of the second power supply end to the energy storage module 10 for storage. The second energy storage and conversion module 22 performs switching between direct current and alternating current, and controls charging and discharging of the battery. In addition, the second energy storage and conversion module 22 also performs switching between grid-connected mode and off-grid mode.

[0053] Wherein, the first power supply end and the second power supply end are used for connecting a photovoltaic generator, a diesel generator or a power grid;

[0054] In addition, the first energy storage and conversion module 21, the second energy storage and conversion module 22 and the switching between grid-connected mode and off-grid mode are switched, when accessing a voltage source such as a diesel generator and a power grid, the grid-connected mode is operated, and when not accessing a voltage source such as a diesel generator and a power grid, the off-grid mode is operated.

[0055] Specifically, the first power supply end and the second power supply end can be connected with one or more power supply sockets, and the power supply socket can access a photovoltaic generator, a diesel generator or a power grid. It should be noted that the first power supply end and the second power supply end can also be any power generation device.

[0056] An energy control module 30 connected with the first energy storage and conversion module 21 and the second energy storage and conversion module 22 respectively, used for sending a first control signal to the first energy storage and conversion module 21, and sending a second control signal to the second energy storage and conversion module 22, wherein the first control signal is used for turning on and off the input of the first power supply end, and the second control signal is used for turning on and off the input of the second power supply end.

[0057] Specifically, the energy control module 30 is an EMS (Energy Management System), configured to send a first control signal to the first energy storage converter module 21, and the first energy storage converter module 21 controls the input of the first power supply end, and configured to send a second control signal to the second energy storage converter module 22, and the second energy storage converter module 22 controls the input of the second power supply end.

[0058] The power supply control circuit provided by the utility model, through energy control module controls first energy storage converter module and second energy storage converter module respectively, through first energy storage converter module carries out energy storage module, electric terminal and first power supply end between the energy transmission, namely, first power supply end's energy transmission to energy storage module and to electric terminal use, simultaneously, second energy storage converter module will second power supply end's energy transmission to first energy storage converter module and energy storage module, make energy storage module store second power supply end's energy, or through first energy storage converter module to electric terminal use. Thus, through the switching of the grid-connected mode and the off-grid mode of the first energy storage converter module and the second energy storage converter module, and the fact that the power grid, the photovoltaic generator and the diesel generator can be connected to the first power supply end and the second power supply end respectively, the photovoltaic generator and the diesel generator in the power grid area and the non-power grid area can be used. It can be used in various working conditions, greatly improving the convenience of user electricity.

[0059] In addition, if the diesel generator is connected in the case of no power grid, the first energy storage converter module 21 is switched to the off-grid mode, the second energy storage converter module 22 is switched to the grid-connected mode, and the diesel generator is connected to the second power supply end. The energy generated by the diesel generator is transmitted to the first energy storage converter module 21 through the grid-connected mode, and the first energy storage converter module 21 supplies the electric terminal with the energy in the off-grid mode. The output does not need to be fixed by the power value, thereby avoiding the problem that the power of the load changes in real time according to the actual situation, resulting in that the diesel generator cannot be directly used for power generation in the grid-connected mode.

[0060] In some optional embodiments, as shown in Figure 2 and Figure 5 The first energy storage converter module 21 comprises:

[0061] At least one first energy storage converter P1, a first end of the first energy storage converter P1 is connected with the energy storage module 10, a second end of the first energy storage converter P1 is connected with at least one electric terminal, and the first energy storage converter P1 is configured to transmit the energy of the first power supply end to the energy storage module for storage, and supply the electric terminal with the energy of the energy storage module and the second power supply end.

[0062] a first circuit breaker Q1, a first end of the first circuit breaker Q1 being connected with a second end of the first energy storage converter P1, a second end of the first circuit breaker Q1 being connected with the first power supply end, the first circuit breaker being configured to receive the first control signal.

[0063] In particular, referring to Figure 2 , the first energy storage converter P1 is a PSC (photovoltaic storage converter), the first circuit breaker Q1 can be a relay or a switch tube, and the first circuit breaker Q1 is controlled by the energy control module 30.

[0064] Referring to Figure 5 , the first energy storage converter module 21 includes two first energy storage converters P1, the DC end and the AC end of the two first energy storage converters P1 being used in parallel, the power of each first energy storage converter P1 being 220 KW, and the output voltage of the two first energy storage converters P1 being 690 V.

[0065] In some alternative embodiments, as shown in Figure 3 , the first energy storage converter module 21 includes:

[0066] a transformer V1, a first end of the transformer V1 being connected with a second end of the first energy storage converter P1, a second end of the transformer V1 being connected with a first end of the first circuit breaker Q1.

[0067] In particular, referring to Figure 3 , the transformer V1 is configured to store the electrical energy transmitted by the first power supply end after being transformed, to the energy storage module 10, and to supply the electrical energy transmitted by the first energy storage converter P1 after being transformed, to the power consumption end. Optionally, the transformer V1 can be converted between 690 V and 400 V.

[0068] In some alternative embodiments, as shown in Figure 2 and Figure 5 , the second energy storage converter module 22 includes:

[0069] at least one second energy storage converter P2, a first end of the second energy storage converter P2 being connected with the first energy storage converter module 21 and the energy storage module 10, the second energy storage converter P2 being configured to transmit electrical energy to the energy storage module 10 and the first energy storage converter module 21;

[0070] a second circuit breaker Q2, a first end of the second circuit breaker Q2 being connected with a second end of the second energy storage converter P2, a second end of the second circuit breaker Q2 being connected with the second power supply end, the second circuit breaker Q2 being configured to receive the second control signal.

[0071] In particular, referring to Figure 2The second energy storage converter P2 is a PSC (photovoltaic storage and charging converter), and the second breaker Q2 can be a relay or a switch tube, which is controlled by the energy control module 30.

[0072] Specifically, referring to Figure 5 The second energy storage converter P2 has a power of 125 KW.

[0073] In some alternative embodiments, as shown in Figure 4 and Figure 5 The power supply control circuit comprises:

[0074] A first surge protector SPD1, a first end of the first surge protector SPD1 is connected with the first power supply end, and a second end of the first surge protector SPD1 is grounded.

[0075] A second surge protector SPD2, a first end of the second surge protector SPD2 is connected with the second power supply end, and a second end of the second surge protector SPD2 is grounded.

[0076] Specifically, referring to Figure 4 The first surge protector SPD1 is used for protecting the first power supply end, and the second surge protector SPD2 is used for protecting the second power supply end.

[0077] Referring to Figure 5 The power supply control circuit further comprises a fourth breaker Q4 and a fifth breaker Q5, which are used for controlling the access of the first surge protector SPD1 and the second surge protector SPD2 respectively. A first end of the fourth breaker Q4 is connected with the first power supply end, and a second end of the fourth breaker Q4 is connected with the first surge protector SPD1. A first end of the fifth breaker Q5 is connected with the second power supply end, and a second end of the fifth breaker Q5 is connected with the second surge protector SPD2.

[0078] In some alternative embodiments, as shown in Figure 4 The power supply control circuit comprises:

[0079] At least one third breaker Q3, a first end of the third breaker Q3 is connected with the first energy storage converter module 21, and a second end of the third breaker Q3 is connected with the power consumption end.

[0080] Specifically, the power consumption end can be connected with power consumption sockets, the output currents of the power consumption sockets are different, and the models of the sockets are also different. The third breaker Q3 is used for controlling the power consumption output of the power consumption end. It can be understood that the number of the third breakers Q3 is the same as the number of the power consumption ends. Each third breaker Q3 controls one power consumption socket.

[0081] In some alternative embodiments, as shown in Figure 5 The power consuming end includes a charging pile K1.

[0082] Specifically, the power consuming end can be a charging pile K1, the first end of the charging pile K1 is connected with the third circuit breaker Q3, and the second end of the charging pile K1 is connected with at least one power socket. The user charges the equipment through the power socket. The equipment is not limited to electric vehicles, mobile phones and other electronic devices.

[0083] In some alternative embodiments, the power supply control circuit includes:

[0084] a system operation interface, the system operation interface is provided with a first knob, a second knob, a third knob and a fourth knob;

[0085] The first knob is used to switch the remote control mode and the local control mode of the first energy storage inverter module;

[0086] The second knob is used to switch the remote control mode and the local control mode of the second energy storage inverter module;

[0087] The third knob is used to switch the grid-connected mode and the off-grid mode of the first energy storage inverter module;

[0088] The fourth knob is used to switch the grid-connected mode and the off-grid mode of the second energy storage inverter module.

[0089] Specifically, the first knob and the third knob are connected with the first energy storage inverter module, and the second knob and the fourth knob are connected with the second energy storage inverter module. The user switches the remote control mode and the local control mode through the first knob and the second knob in the system operation interface, so that the energy control module 30 controls the first circuit breaker Q1 and the second circuit breaker Q2 in the remote control mode.

[0090] In some alternative embodiments, as shown in Figure 4 and Figure 5 The energy storage module 10 includes:

[0091] at least one high-voltage box 12, the first end of the high-voltage box 12 is connected with the first energy storage inverter module 21 and the second energy storage inverter module 22;

[0092] at least one battery cabinet 11, the first end of the battery cabinet 11 is connected with the second end of the high-voltage box 12.

[0093] Specifically, the high-voltage box 12 is used to control the charging and discharging of the battery cabinet 11. Referring to Figure 5, the energy storage module 10 can include two high-voltage boxes 12 and two battery cabinets 11, one of which is connected with one high-voltage box 12, and the high-voltage box 12 is connected with a first energy storage converter P1, and the other battery cabinet 11 is connected with the other high-voltage box 12, and the high-voltage box 12 is connected with another first energy storage converter P1.

[0094] With reference to Figure 5 , the energy control module 30 collects the energy storage module 10 and each device information, so as to control the BMS (battery management system), two first energy storage converters P1, a second energy storage converter P2, and each circuit breaker, so as to ensure the normal operation of the whole system. The first circuit breaker Q1 is provided with a first electric meter, and the second circuit breaker Q2 is provided with a second electric meter. The following can be divided into various working conditions. The first power supply end is connected with two power supply sockets, and the second power supply end is connected with one power supply socket.

[0095] The first working condition is that the first circuit breaker Q1 is not connected, the second circuit breaker Q2 is connected with the diesel generator, and the third circuit breaker Q3 is connected with the load for use. In this working condition, the user controls the two first energy storage converters P1 to be off-grid mode, controls the second energy storage converter P2 to be grid-connected mode, and confirms that the first circuit breaker Q1 and the second circuit breaker Q2 are controlled to be remote mode. At this time, the user rotates the switch knob to the start position, at this time, the energy control module 30 will judge whether the actual power grid state is consistent with the state of the second knob through the electric meter information, if consistent, the start process is executed. At this time, the first circuit breaker Q1 is disconnected, the BMS is controlled to close the relay in the high-voltage box to provide the first energy storage converter P1 with battery direct current, then the first energy storage converter P1 is controlled to be off-grid mode, and a start instruction is sent. The first energy storage converter P1 monitors that there is no fault and operates in off-grid mode. When the system discharges to the set SOC (State of Charge) value of the second energy storage converter P2 start charging, the energy control module 30 will control the dry contact point signal of the diesel generator, at this time, the diesel generator starts, and when the energy control module 30 detects that the voltage frequency of the second electric meter is normal, the second energy storage converter P2 is controlled to start and connect to the grid to charge the battery, at this time, the whole system will synchronously charge and discharge, when charging to the set cut-off SOC, the energy control module 30 will control the second energy storage converter P2 to shut down, and control the dry node signal of the diesel generator to shut down the diesel generator. If the user rotates the switch knob to the shutdown position, the whole system will stop and go down the high voltage.

[0096] It should be noted that the operation of disconnecting the first circuit breaker Q1 before starting is to prevent the first circuit breaker Q1 from being connected to the power grid. If the power grid suddenly recovers voltage while the first circuit breaker Q1 is not disconnected, it will affect the system use, and even damage the equipment. If the user does not rotate the first circuit breaker Q1 remote local knob to remote, the first circuit breaker Q1 cannot execute the disconnect instruction of the energy control module 30, so it always sends the first circuit breaker Q1 closed state signal to the energy control module 30, at this time the energy control module 30 will alarm and not continue to execute the starting process. If the user controlled first energy storage converter P1 and off-grid knob state is out of sync with the high voltage state monitored by the energy control module 30 through the electric meter, an alarm will be issued that the system cannot start. This logic is to prevent the actual power grid from having power and the user from misoperating off-grid starting to cause system abnormalities. When the discharge is low, the system will remind the low power, and when the low power reaches the protection value, the entire system will automatically shut down.

[0097] Second working condition: the first circuit breaker Q1 is connected to the photovoltaic generator, the second circuit breaker Q2 is connected to the diesel generator, and the third circuit breaker Q3 is connected to the load for use; the difference between the control principle and the first working condition is that when the system starts successfully, the user manually closes the first circuit breaker Q1, at this time the photovoltaic is connected to the system, if the light allows, the photovoltaic power generation is given priority to the load, and the remaining power is given to the battery charging, when the battery charging reaches the set SOC value, the energy control module 30 will control the first circuit breaker Q1 to be disconnected to prevent the battery from overcharging, when the battery discharges to the set SOC, the energy control module 30 controls the first circuit breaker Q1 to be closed, if the light allows, the photovoltaic is put into the load power supply and the remaining power is given to the battery charging.

[0098] It should be noted that if the first circuit breaker Q1 is not controlled by the energy control module 30, it will eventually be protected and shut down when the protection condition is reached.

[0099] Third working condition, the first circuit breaker Q1 is connected to the power grid, the second circuit breaker Q2 is connected to the power grid, and the third circuit breaker Q3 is connected to the load for use, this working condition is fast charging, the difference between the first working condition is that the first energy storage converter P1 needs to be rotated to the grid-connected mode, the starting will first close the first circuit breaker Q1, then close the relay in the high voltage box, control the first energy storage converter P1 to start in grid-connected mode, at this time the load is mainly powered by the power grid, the user can set the charging power, this working condition is suitable for fast charging, and then the system is pulled to the off-grid discharge area.

[0100] Fourth working condition: the first circuit breaker Q1 is connected to the power grid, the second circuit breaker Q2 is empty, and the third circuit breaker Q3 is connected to the load for use; this working condition is suitable for peak shaving of industrial and commercial storage, and has the function of preventing reverse flow and demand control.

[0101] Fifth working condition: the first circuit breaker Q1 is empty, the second circuit breaker Q2 is connected to the power grid, and the third circuit breaker Q3 is connected to the load for use; the control of this working condition is the same as the first working condition.

[0102] The sixth working condition: the first circuit breaker Q1 is empty, the second circuit breaker Q2 is empty, and the third circuit breaker Q3 is connected to the load; this working condition is suitable for the working condition 3 after fast charging and is used for discharging in the off-grid area.

[0103] The seventh working condition: the first circuit breaker Q1 is connected to the photovoltaic, the second circuit breaker Q2 is connected to the power grid, and the third circuit breaker Q3 is connected to the load; this working condition is controlled similarly to the second working condition.

[0104] The eighth working condition: the first circuit breaker Q1 is connected to the photovoltaic, the second circuit breaker Q2 is empty, and the third circuit breaker Q3 is connected to the load; this working condition is similar to the second working condition, but the second energy storage converter P2 branch is not used.

[0105] The ninth working condition: the first circuit breaker Q1 is connected to two power supply sockets, one of which is connected to the photovoltaic, and the other is connected to the power grid; the second circuit breaker Q2 is empty, and the third circuit breaker Q3 is connected to the load; this working condition is similar to the fourth working condition, and the photovoltaic power generation can be returned to the power grid.

[0106] In the embodiment, the utility model provides a mobile power consumption cabinet, the mobile power consumption cabinet includes a container, the container is provided with the above-mentioned power supply control circuit, so that the power grid, the photovoltaic generator and the diesel generator can be connected to the first power supply end and the second power supply end respectively, and the use of the photovoltaic generator and the diesel generator in the power grid area and the off-grid area can be adapted. Can be used in various working conditions, greatly improves the convenience of user power consumption. And install the container on the vehicle, realize the mobile mobile power consumption cabinet.

[0107] Although the embodiments of the utility model are described in combination with the drawings, various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A power supply control circuit, characterized by comprising: The power supply control circuit comprises: a storage module for storing electric energy; a first storage converter module connected with the storage module, at least one power consumption terminal and a first power supply terminal, the first storage converter module being used for transmitting electric energy between the storage module, the power consumption terminal and the first power supply terminal; at least one second storage converter module connected with the storage module, the first storage converter module and a second power supply terminal, the second storage converter module being used for receiving electric energy of the second power supply terminal and transmitting electric energy of the second power supply terminal to the first storage converter module and the storage module; wherein the first power supply terminal and the second power supply terminal are used for connecting a photovoltaic generator, a diesel generator or a power grid; an energy control module connected with the first storage converter module and the second storage converter module respectively, the energy control module being used for sending a first control signal to the first storage converter module and sending a second control signal to the second storage converter module, wherein the first control signal is used for turning on and off input of the first power supply terminal, and the second control signal is used for turning on and off input of the second power supply terminal.

2. The power supply control circuit of claim 1, wherein, The first storage converter module comprises: at least one first storage converter, a first end of the first storage converter being connected with the storage module, a second end of the first storage converter being connected with at least one power consumption terminal, the first storage converter being used for sending electric energy of the first power supply terminal to the storage module for storage and supplying electric energy of the storage module and the second power supply terminal to the power consumption terminal; a first circuit breaker, a first end of the first circuit breaker being connected with the second end of the first storage converter, a second end of the first circuit breaker being connected with the first power supply terminal, the first circuit breaker being used for receiving the first control signal.

3. The power supply control circuit of claim 2, wherein, The first storage converter module comprises: a transformer, a first end of the transformer being connected with the second end of the first storage converter, a second end of the transformer being connected with the first end of the first circuit breaker.

4. The power supply control circuit of claim 1, wherein, The second storage converter module comprises: at least one second storage converter, a first end of the second storage converter being connected with the first storage converter module and the storage module, the second storage converter being used for sending electric energy to the storage module and the first storage converter module; a second circuit breaker, a first end of the second circuit breaker being connected with a second end of the second storage converter, a second end of the second circuit breaker being connected with the second power supply terminal, the second circuit breaker being used for receiving the second control signal.

5. The power supply control circuit of claim 1, wherein, The power supply control circuit comprises: a first surge protector, a first end of the first surge protector being connected with the first power supply terminal, a second end of the first surge protector being grounded; a second surge protector, a first end of the second surge protector being connected with the second power supply terminal, a second end of the second surge protector being grounded.

6. The power supply control circuit of claim 1, wherein, The power supply control circuit comprises: At least one third circuit breaker, a first end of the third circuit breaker is connected with the first energy storage converter module, and a second end of the third circuit breaker is connected with the power consumption end.

7. The power supply control circuit of claim 1, wherein, The power consumption end comprises a charging pile.

8. The power supply control circuit of claim 1, wherein, The power supply control circuit comprises: A system operation interface, the system operation interface is provided with a first knob, a second knob, a third knob and a fourth knob; The first knob is used for switching a remote control mode and a local control mode of the first energy storage converter module; The second knob is used for switching a remote control mode and a local control mode of the second energy storage converter module; The third knob is used for switching a grid-connected mode and an off-grid mode of the first energy storage converter module; The fourth knob is used for switching a grid-connected mode and an off-grid mode of the second energy storage converter module.

9. The power supply control circuit of claim 1, wherein, The energy storage module comprises: At least one high-voltage box, a first end of the high-voltage box is respectively connected with the first energy storage converter module and the second energy storage converter module; At least one battery cabinet, a first end of the battery cabinet is connected with a second end of the high-voltage box.

10. A mobile electrical cabinet, characterized in that The mobile power consumption cabinet comprises a container, and the container is provided with the power supply control circuit according to any one of claims 1 to 9.

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