CN117060180B - Control system of household energy storage system and application method thereof - Google Patents
Control system of household energy storage system and application method thereof Download PDFInfo
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- CN117060180B CN117060180B CN202311049457.7A CN202311049457A CN117060180B CN 117060180 B CN117060180 B CN 117060180B CN 202311049457 A CN202311049457 A CN 202311049457A CN 117060180 B CN117060180 B CN 117060180B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 167
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000006073 displacement reaction Methods 0.000 claims description 24
- 230000009471 action Effects 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000006872 improvement Effects 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/60—Devices for interrupted current collection, e.g. commutating device, distributor, interrupter
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a control system of a household energy storage system and a use method thereof, and relates to the technical field of energy utilization. The converter for the control system of the household energy storage system comprises an insulating rotary table, a first node, a second node and a third node, wherein the first node, the second node and the third node are collectively called as nodes below for convenience in description, three connecting pieces are movably arranged on the insulating rotary table through a rotating shaft and are respectively a first connecting piece, a second connecting piece and a third connecting piece, and the first connecting piece, the second connecting piece and the third connecting piece are collectively called as connecting pieces below for convenience in description. According to the control system of the household energy storage system and the application method thereof, through improvement of the converter and matching with the driving motor, the whole system can realize switching of the energy supply mechanism on the premise that the processing mechanism is possibly omitted, the service life of the energy storage unit is prolonged, and the overhaul frequency is reduced.
Description
Technical Field
The invention relates to the technical field of energy utilization, in particular to a control system of a household energy storage system and a use method thereof.
Background
The household energy storage device stores electric energy, and is also called as an electric energy storage product or a Battery Energy Storage System (BESS), hereinafter referred to as household energy storage, and the core of the household energy storage is a rechargeable battery, typically a lithium ion battery or a lead-acid battery. The other components are inverters, and the control system can intelligently control charge and discharge.
The energy storage unit is one of the main structures of the household energy storage equipment, and due to the limitations of production technology and material conductivity, a plurality of energy storage units are required to be used as energy supply mechanisms in some cases, loss asynchronism can occur inevitably when the plurality of energy storage units are used, so that energy difference values exist among the plurality of energy storage units, if the plurality of energy storage units are directly connected in series for use, the service life of the energy storage units is shortened (the specific reasons are similar to that when a new battery and an old battery are mixed, the service life of the battery is shortened), and the maintenance frequency is increased, and meanwhile, the cost is increased;
in the prior art, although the system with the switching function mechanism is used for switching different energy storage units to serve as the energy supply mechanism, more data processing mechanisms are used, the cost is relatively high, and in addition, from the perspective of network safety, more unsafe exists, and the use requirement of a user is difficult to well meet.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a control system of a household energy storage system and a use method thereof, and solves the problems that in the prior art, although a system with a switching function mechanism is used for switching different energy storage units as energy supply mechanisms, more data processing mechanisms are used, the cost is relatively higher, and in addition, the system is evaluated from the perspective of network safety, more unsafe exists, and the use requirement of a user is difficult to well meet.
Technical proposal
In order to achieve the above purpose, the invention is realized by the following technical scheme: the converter for the control system of the household energy storage system comprises an insulating rotary table, a first node, a second node and a third node, wherein the first node, the second node and the third node are collectively called as nodes for convenience in description;
three connecting pieces, namely a first connecting piece, a second connecting piece and a third connecting piece, are movably arranged on the insulating turntable through a rotating shaft, and for convenience of description, the first connecting piece, the second connecting piece and the third connecting piece are collectively called as connecting pieces;
the structure of the first node, the second node and the third node is the same, the structure of the first node, the second node and the third node comprises an outer frame, a coil block is embedded on the outer frame, a guide rod is arranged on the outer frame, a displacement plate is movably sleeved on the guide rod, a movable space for the guide rod to move away from an insulating rotary table is arranged on the displacement plate, a permanent magnet matched with the coil block is embedded on the displacement plate, a conducting plate matched with a connecting piece is arranged on one side, close to the insulating rotary table, of the displacement plate, and insulating materials are arranged between the displacement plate and the conducting plate;
the first connecting piece, the second connecting piece and the third connecting piece have the same structure and both comprise insulating plates, and both sides of each insulating plate are movably connected with a conductive torch matched with the conductive sheet through a rotating shaft;
when all the permanent magnets are electrified, each conductive sheet corresponds to one conductive cylinder, and the conductive sheet is contacted with the corresponding conductive cylinder.
Preferably, the magnetic field direction of the permanent magnet is opposite to the magnetic field direction generated by the coil block after the coil block is electrified, and the displacement plate and the outer frame are made of iron and can be temporarily magnetized.
Preferably, a return spring for assisting the return of the displacement plate is arranged on the guide rod.
The control system of the household energy storage system comprises the converter for the control system of the household energy storage system, which is hereinafter referred to as a converter, and has the following specific structure:
the energy storage device comprises an energy storage unit B and an energy storage unit C, wherein charging ends are arranged on the energy storage unit B and the energy storage unit C, the output ends of the energy storage unit B and the energy storage unit C are connected with a converter, the output end of the converter is connected with a discharging end and a voltage comparator group, the output end of the voltage comparator group is provided with an energy storage unit A, and the output end of the energy storage unit A is electrically connected with a driving circuit through a unidirectional diode;
the energy storage unit B is electrically connected with the coil block in the second node, and the coil block in the second node is electrically connected with the second connecting piece;
the energy storage unit C is electrically connected with the coil block in the third node, and the coil block in the third node is electrically connected with the third connecting piece;
the coil block in the first node is electrically connected with the first connecting piece;
the second node and the third node are electrically connected with the discharge end;
the voltage comparator group comprises two voltage comparators, namely a voltage comparator A and a voltage comparator B, wherein the "+" input end of the voltage comparator A is electrically connected with a first node, and the "-" input end of the voltage comparator A is electrically connected with a second node;
the "+" input end of the voltage comparator B is electrically connected with the first node, and the "-" input end of the voltage comparator A is electrically connected with the third node;
the output ends of the voltage comparator A and the voltage comparator B are electrically connected with the input end of the energy storage unit A, and the specific conditions of the voltage comparator during use are as follows:
the voltage comparator group outputs a high level when the "+" input terminal voltage is higher than the "-" input terminal, and outputs a low level when the "+" input terminal voltage is lower than the "-" input terminal;
the output end of the energy storage unit A is electrically connected with the N end of the unidirectional diode;
the driving circuit comprises a driving motor, wherein the output end of the driving motor is relatively fixed on the insulating turntable during installation, the default rotation direction of the driving motor is clockwise, and the driving motor drives the insulating turntable to rotate during rotation, so that the relative contact relation between different nodes and different connecting pieces is changed;
the input end of the driving motor is electrically connected with the P end of the unidirectional diode, a branch is connected in parallel to the circuit of the driving motor, a safety switch, a first connecting piece and a first node are respectively arranged on the branch, the branch is connected only when the safety switch is closed and the first connecting piece is contacted with the first node, and the effective resistance of the branch is far smaller than that of the driving motor.
Preferably, according to actual needs, the number of the charging ends is one or two, when the number of the charging ends is one, the charging ends are shared by the energy storage unit B and the energy storage unit C, and when the number of the charging ends is two, the two charging ends are respectively used by the energy storage unit B and the energy storage unit C.
The application method of the control system of the household energy storage system comprises the following specific operations:
the use of the converter is as follows:
when the converter is used, the insulating turntable is driven to rotate by the driving motor, so that the relative positions between different nodes and different connecting pieces are changed, and when the converter rotates, the displacement plate moves relative to the outer frame, so that the nodes can not block the rotation of the insulating turntable, and the possibility of the rotation of the insulating turntable is ensured;
when the second connecting piece is contacted with the second node or the third node, the output end of the energy storage unit B is communicated with the discharge end, and the whole system energy storage unit B supplies power at the moment;
when the third connecting piece is contacted with the second node or the third node, the output end of the energy storage unit C is communicated with the discharge end, and the whole system energy storage unit C supplies power at the moment;
when current exists on the node, the coil block of the node is electrified, and the conducting strip is close to the nearest conducting strip as much as possible under the action of the magnetic fields of the coil block and the permanent magnet and the activity space, so that the connecting position is relatively stable;
when no current exists on the node, the coil block of the node is powered off, so that the conductive sheet is kept away from the conductive torch as far as possible under the action of the magnetic field of the permanent magnet and the movable space, and the insulating turntable can rotate conveniently;
the use condition of the whole system is as follows:
when the power supply switching device is used, a voltage comparator A and a voltage comparator B in a voltage comparator group can compare voltage values of a discharge end and a non-discharge end, if the voltage value of the non-discharge end is larger than the voltage value of the discharge end, a high level is output, otherwise, the high level is a low level, the energy storage unit A is powered by a unidirectional diode, when the energy storage unit A is enough to supply power to a driving motor, the driving motor rotates, thereby changing positions between different nodes and different connecting pieces, and switching of a working power supply is realized, when the power supply is switched, due to the use condition of the converter, an electrified node and the connecting piece can move for a certain distance relative to an outer frame before being separated, when the connecting piece is about to be contacted with a next node, under the action of a reset spring and a magnetic field, the corresponding connecting piece is contacted with a new node after being separated from the current node, so that the power supply switching time can be greatly reduced, and meanwhile, the condition of continuous switching for many times cannot occur due to the limited capacity of the energy storage unit A;
when the safety switch is in a closed state and the first connecting piece is in contact with the first node, the driving motor cannot work, and at the moment, the energy storage unit B and the energy storage unit C are electrically connected with the discharge end, an operator can switch between an automatic adjusting mode and a default mode through the safety switch control system, wherein the automatic adjusting mode is that: the system can select an energy storage unit with relatively large effective output voltage as an energy supply mechanism according to the energy storage unit B and the energy storage unit C, and the default mode is as follows: the system uses both the energy storage unit B and the energy storage unit C as energy supply mechanisms.
Preferably, when in use, an operator can change the model of the driving motor, the output voltage of the voltage comparator group and the model of the energy storage unit A, so as to change the time of the energy storage unit A for completely supplying power to the driving motor once, thereby changing the switching frequency of the functional mechanism in an automatic regulation mode.
Preferably, when the device is used, the limiting mechanism can be added to limit the rotation angle of the insulating turntable, so that the angle value is ensured to be a multiple of 120 degrees clockwise, and each node is contacted with a connecting piece after the driving motor rotates each time.
In the foregoing description, for convenience of description, certain components may be selected according to actual situations, and are conventional structures, which are not included in the scope of protection of the present patent, and are structures necessary for a normal circuit, for example: the components of the transformer, ac/dc converter, etc. are not illustrated, but do not represent the absence of such components at the time of actual circuit set-up, and the above description is merely of the necessary structure to be protected by the present invention.
Advantageous effects
The invention provides a control system of a household energy storage system and a use method thereof. The beneficial effects are as follows:
(1) According to the control system of the household energy storage system and the application method thereof, the energy storage system is matched with the driving motor for use through improvement of the converter, so that the whole system can realize switching of the energy supply mechanism on the premise that the processing mechanism is possibly omitted, the service life of the energy storage unit is prolonged, and the overhaul frequency is reduced.
(2) According to the control system of the household energy storage system and the use method thereof, through the addition of the internal energy storage unit A and the use of the auxiliary voltage comparator set, the converter can automatically select the energy storage unit with relatively large output voltage, so that automatic work is realized to a certain extent, the whole switching system can automatically operate without a processing mechanism, the use safety is ensured to a certain extent, and meanwhile, the cost is saved (in most cases, the use of a large number of processing mechanisms can certainly increase the manufacturing cost).
(3) According to the control system of the household energy storage system and the use method thereof, through improvement of the nodes and the connecting pieces, the energy storage unit A is matched, so that the effective time of power failure during switching is greatly reduced compared with that of direct switching, the situation of repeated continuous switching is avoided, and negative effects caused by switching are reduced as much as possible.
(4) According to the control system of the household energy storage system and the use method thereof, the system provides an automatic regulation mode and a default mode through improvement of the driving circuit, wherein the automatic regulation mode refers to: the system can select an energy storage unit with relatively large effective output voltage as an energy supply mechanism according to the energy storage unit B and the energy storage unit C, and the default mode is as follows: the system uses the energy storage unit B and the energy storage unit C as energy supply mechanisms, so that different requirements of users can be met, and the application range of the system is enlarged.
Drawings
FIG. 1 is a schematic diagram of a converter according to the present invention;
FIG. 2 is a schematic diagram of a node of the present invention;
FIG. 3 is a schematic view of a connector according to the present invention;
FIG. 4 is a schematic diagram of a connection mode of electronic components according to the present invention;
FIG. 5 is a schematic diagram of the connection of electronic components of the converter according to the present invention;
fig. 6 is a schematic diagram of a connection mode of electronic components of the driving circuit of the present invention.
It should be noted that fig. 4-6 are schematic diagrams of general connection directions of circuits, not complete circuit diagrams, in practical application, a series of necessary components exist in the circuits besides the structures in the diagrams to ensure that the circuits can operate normally, but all the necessary components belong to the prior art, meanwhile, the complexity of the drawings is considered, so that the description is omitted, in practical application, some functional components are added to the circuits according to the needs, so that fig. 4-6 are only the simplest circuit connection diagrams of the components related to the patent, and no other components exist in practical application.
In fig. 4-6, the wire connection portion is an electrical connection, and the point connection portion indicates that there is a connectable condition between two components, and whether the connection is specific to the actual condition or not.
In the figure: 1. an insulating turntable; 2A, a first node; 2B, a second node; 2C, a third node; 21. a coil block; 22. a guide rod; 23. a conductive sheet; 24. a movable space; 25. an outer frame; 26. a return spring; 27. a displacement plate; 28. a permanent magnet; 3A, a first connector; 3B, a second connecting piece; 3C, a third connector; 31. a conductive torch; 32. an insulating plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides a technical solution: the converter for the control system of the household energy storage system comprises an insulating rotary table 1, a first node 2A, a second node 2B and a third node 2C, wherein the first node 2A, the second node 2B and the third node 2C are collectively called as nodes for convenience of description;
three connecting pieces, namely a first connecting piece 3A, a second connecting piece 3B and a third connecting piece 3C, are movably arranged on the insulating turntable 1 through a rotating shaft, and for convenience of description, the first connecting piece 3A, the second connecting piece 3B and the third connecting piece 3C are collectively called as connecting pieces;
the first node 2A, the second node 2B and the third node 2C have the same structure and comprise an outer frame 25, a coil block 21 is inlaid on the outer frame 25, the direction of a magnetic field generated by energizing the coil block 21 is opposite to that of a magnetic field direction permanent magnet 28, materials of a displacement plate 27 and the outer frame 25 are iron and can be magnetized temporarily, a guide rod 22 is arranged on the outer frame 25, a reset spring 26 for assisting the displacement plate 27 to reset is arranged on the guide rod 22, a displacement plate 27 is movably sleeved on the guide rod 22, a movable space 24 for the guide rod 22 to move away from the insulating turntable 1 is arranged on the displacement plate 27, a permanent magnet 28 matched with the coil block 21 is inlaid on the displacement plate 27, a conductive sheet 23 matched with a connecting piece is arranged on one side of the displacement plate 27 close to the insulating turntable 1, and insulating materials are arranged between the displacement plate 27 and the conductive sheet 23;
the first connecting piece 3A, the second connecting piece 3B and the third connecting piece 3C have the same structure and comprise insulating plates 32, and the two sides of each insulating plate 32 are movably connected with conductive cylinders 31 matched with the conductive sheets 23 through rotating shafts;
when all the permanent magnets 28 are energized, each conductive sheet 23 corresponds to one conductive cylinder 31, and the conductive sheet 23 is in contact with its corresponding conductive cylinder 31.
The control system of the household energy storage system comprises the converter for the control system of the household energy storage system, which is hereinafter referred to as a converter, and has the following specific structure:
the energy storage device comprises an energy storage unit B and an energy storage unit C, wherein charging ends are arranged on the energy storage unit B and the energy storage unit C, the output ends of the energy storage unit B and the energy storage unit C are connected with a converter, the output end of the converter is connected with a discharging end and a voltage comparator group, the output end of the voltage comparator group is provided with an energy storage unit A, and the output end of the energy storage unit A is electrically connected with a driving circuit through a unidirectional diode;
the energy storage unit B is electrically connected with the coil block 21 in the second node 2B, and the coil block 21 in the second node 2B is electrically connected with the second connecting piece 3B;
the energy storage unit C is electrically connected with the coil block 21 in the third node 2C, and the coil block 21 in the third node 2C is electrically connected with the third connecting piece 3C;
the coil block 21 in the first node 2A is electrically connected with the first connecting piece 3A;
the second node 2B and the third node 2C are electrically connected with the discharge end;
the voltage comparator group comprises two voltage comparators, namely a voltage comparator A and a voltage comparator B, wherein the "+" input end of the voltage comparator A is electrically connected with the first node 2A, and the "-" input end of the voltage comparator A is electrically connected with the second node 2B;
the "+" input end of the voltage comparator B is electrically connected with the first node 2A, and the "-" input end of the voltage comparator A is electrically connected with the third node 2C;
the output ends of the voltage comparator A and the voltage comparator B are electrically connected with the input end of the energy storage unit A, and the specific conditions of the voltage comparator during use are as follows:
the voltage comparator group outputs a high level when the "+" input terminal voltage is higher than the "-" input terminal, and outputs a low level when the "+" input terminal voltage is lower than the "-" input terminal;
the output end of the energy storage unit A is electrically connected with the N end of the unidirectional diode;
the driving circuit comprises a driving motor, wherein the output end of the driving motor is relatively fixed on the insulating rotary table 1 during installation, the default rotation direction of the driving motor is clockwise, and the driving motor drives the insulating rotary table 1 to rotate during rotation, so that the relative contact relation between different nodes and different connecting pieces is changed;
the input end of the driving motor is electrically connected with the P end of the unidirectional diode, a branch is connected in parallel to the circuit of the driving motor, a safety switch, a first connecting piece 3A and a first node 2A are respectively arranged on the branch, and only when the safety switch is closed and the first connecting piece 3A is contacted with the first node 2A, the branch is connected, and the effective resistance of the branch is far smaller than that of the driving motor.
The number of the charging ends is one or two, when the number of the charging ends is one, the charging ends are shared by the energy storage unit B and the energy storage unit C, and when the number of the charging ends is two, the two charging ends are respectively used by the energy storage unit B and the energy storage unit C.
The application method of the control system of the household energy storage system comprises the following specific operations:
the use of the converter is as follows:
when the converter is used, the insulating turntable 1 is driven to rotate by the driving motor, so that the relative positions between different nodes and different connecting pieces are changed, and when the converter rotates, the displacement plate moves relative to the outer frame, so that the nodes can not block the insulating turntable 1 from rotating, and the possibility of rotating the insulating turntable 1 is ensured;
when the second connecting piece 3B is in contact with the second node 2B or the third node 2C, the output end of the energy storage unit B is communicated with the discharge end, and the whole system energy storage unit B supplies power at the moment;
when the third connecting piece 3C is in contact with the second node 2B or the third node 2C, the output end of the energy storage unit C is communicated with the discharge end, and the whole system energy storage unit C supplies power at the moment;
when current exists on the node, the coil block 21 of the node is electrified, and the conductive sheet 23 is close to the nearest conductive cylinder 31 as much as possible under the action of the magnetic fields of the coil block 21 and the permanent magnet 28 and the movable space 24, so that the connecting position is relatively stable;
when no current exists on the node, the coil block 21 of the node is powered off, so that the conductive sheet 23 is kept away from the conductive torch 31 as far as possible under the action of the magnetic field of the permanent magnet 28 and the movable space 24, and the insulating rotary table 1 is convenient to rotate;
the use condition of the whole system is as follows:
when the power supply is used, the voltage comparator A and the voltage comparator B in the voltage comparator group can compare the voltage values of the discharge end and the non-discharge end, if the voltage value of the non-discharge end is larger than the voltage value of the discharge end, a high level is output, otherwise, a low level is output, the high level supplies energy to the energy storage unit A through the unidirectional diode, when the energy storage unit A is enough to supply power to the driving motor, the driving motor rotates, thereby changing the positions between different nodes and different connecting pieces, and realizing the switching of the working power supply, when the power supply is switched, due to the use condition of the converter, the energized nodes and the connecting pieces can move a certain distance relative to the outer frame 25 before being separated, when the connecting pieces are about to be contacted with the next node, under the action of the reset spring 26 and the magnetic field, the corresponding connecting pieces are contacted with the new nodes after being separated from the current nodes, so that the power supply interruption time during the switching of the power supply can be greatly reduced, and meanwhile, the capacity of the energy storage unit A is limited, and the condition of continuous switching for a plurality of times can not occur;
when the safety switch is in a closed state and the first connecting piece 3A is in contact with the first node 2A, the driving motor cannot work, and the energy storage unit B and the energy storage unit C are electrically connected with the discharge end at the moment, an operator can switch between an automatic adjusting mode and a default mode through the safety switch control system, wherein the automatic adjusting mode is that: the system can select an energy storage unit with relatively large effective output voltage as an energy supply mechanism according to the energy storage unit B and the energy storage unit C, and the default mode is as follows: the system uses both the energy storage unit B and the energy storage unit C as energy supply mechanisms.
When the automatic power supply device is used, an operator can change the model of the driving motor, the output voltage of the voltage comparator group and the model of the energy storage unit A, so that the time for the energy storage unit A to completely supply power to the driving motor once is changed, and the switching frequency of the functional mechanism in an automatic regulation mode is changed;
when the insulation turntable is used, the limiting mechanism can be added to limit the rotation angle of the insulation turntable 1, and the angle value is ensured to be a multiple of 120 degrees clockwise, so that each node is contacted by a connecting piece after the driving motor rotates each time.
In the foregoing description, for convenience of description, certain components may be selected according to actual situations, and are conventional structures, which are not included in the scope of protection of the present patent, and are structures necessary for a normal circuit, for example: the components of the transformer, ac/dc converter, etc. are not illustrated, but do not represent the absence of such components at the time of actual circuit set-up, and the above description is merely of the necessary structure to be protected by the present invention.
In summary, the control system of the household energy storage system and the use method thereof, through the improvement of the converter and the use of the drive motor, enable the whole system to realize the switching of the energy supply mechanism on the premise of possibly using less processing mechanism, prolong the service life of the energy storage unit and reduce the maintenance frequency.
According to the control system of the household energy storage system and the use method thereof, through the addition of the internal energy storage unit A and the use of the voltage comparator group, the converter can automatically select the energy storage unit with relatively large output voltage, so that automatic work is realized to a certain extent, the whole switching system can automatically operate without a processing mechanism, the use safety is ensured to a certain extent, and meanwhile, the cost expenditure is saved (under most conditions, the use of a large number of processing mechanisms can certainly increase the manufacturing cost).
According to the control system of the household energy storage system and the use method thereof, through improvement of the nodes and the connecting pieces, the energy storage unit A is matched, and compared with direct switching, the effective time of power failure during switching is greatly reduced, meanwhile, the condition of repeated continuous switching is avoided, and negative effects caused by switching are reduced as much as possible.
According to the control system of the household energy storage system and the use method thereof, the system provides an automatic regulation mode and a default mode through improvement of the driving circuit, wherein the automatic regulation mode refers to: the system can select an energy storage unit with relatively large effective output voltage as an energy supply mechanism according to the energy storage unit B and the energy storage unit C, and the default mode is as follows: the system uses the energy storage unit B and the energy storage unit C as energy supply mechanisms, so that different requirements of users can be met, and the application range of the system is enlarged.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A converter for a control system of a home energy storage system, characterized by: the device comprises an insulating rotary table (1), a first node (2A), a second node (2B) and a third node (2C), wherein for convenience of description, the first node (2A), the second node (2B) and the third node (2C) are collectively called as nodes;
three connecting pieces, namely a first connecting piece (3A), a second connecting piece (3B) and a third connecting piece (3C), are movably arranged on the insulating turntable (1) through a rotating shaft, and the first connecting piece (3A), the second connecting piece (3B) and the third connecting piece (3C) are collectively called as connecting pieces for convenience in description;
the structure of the first node (2A), the structure of the second node (2B) and the structure of the third node (2C) are the same, the structure of the first node, the structure of the second node and the structure of the third node (2C) are the same, the structure of the third node respectively comprise an outer frame (25), a coil block (21) is embedded on the outer frame (25), a guide rod (22) is arranged on the outer frame (25), a displacement plate (27) is movably sleeved on the guide rod (22), a movable space (24) for the guide rod (22) to move away from the insulating turntable (1) is arranged on the displacement plate (27), a permanent magnet (28) matched with the coil block (21) is embedded on the displacement plate (27), a conducting plate (23) matched with a connecting piece is arranged on one side, close to the insulating turntable (1), and an insulating material is arranged between the displacement plate (27) and the conducting plate (23);
the structure of the first connecting piece (3A), the second connecting piece (3B) and the third connecting piece (3C) is the same, each insulating board (32) is included, and both sides of each insulating board (32) are movably connected with a conductive torch (31) matched with the conductive sheet (23) through a rotating shaft;
when all the permanent magnets (28) are electrified, each conductive sheet (23) corresponds to one conductive cylinder (31), and the conductive sheet (23) is in contact with the corresponding conductive cylinder (31).
2. A converter for a control system of a home energy storage system according to claim 1, wherein: the magnetic field direction of the permanent magnet (28) is opposite to the magnetic field direction generated by the coil block (21) after the coil block is electrified, and the materials of the displacement plate (27) and the outer frame (25) are iron and can be magnetized temporarily.
3. A converter for a control system of a home energy storage system according to claim 1, wherein: the guide rod (22) is provided with a return spring (26) for assisting the return of the displacement plate (27).
4. A control system for a home energy storage system, characterized by: a converter for a control system including the household energy storage system of claim 1, hereinafter referred to as a converter, has the following specific structure:
the energy storage device comprises an energy storage unit B and an energy storage unit C, wherein charging ends are arranged on the energy storage unit B and the energy storage unit C, the output ends of the energy storage unit B and the energy storage unit C are connected with a converter, the output end of the converter is connected with a discharging end and a voltage comparator group, the output end of the voltage comparator group is provided with an energy storage unit A, and the output end of the energy storage unit A is electrically connected with a driving circuit through a unidirectional diode;
the energy storage unit B is electrically connected with the coil block (21) in the second node (2B), and the coil block (21) in the second node (2B) is electrically connected with the second connecting piece (3B);
the energy storage unit C is electrically connected with the coil block (21) in the third node (2C), and the coil block (21) in the third node (2C) is electrically connected with the third connecting piece (3C);
the coil block (21) in the first node (2A) is electrically connected with the first connecting piece (3A);
the second node (2B) and the third node (2C) are electrically connected with the discharge end;
the voltage comparator group comprises two voltage comparators, namely a voltage comparator A and a voltage comparator B, wherein the "+" input end of the voltage comparator A is electrically connected with the first node (2A), and the "-" input end of the voltage comparator A is electrically connected with the second node (2B);
the "+" input end of the voltage comparator B is electrically connected with the first node (2A), and the "-" input end of the voltage comparator A is electrically connected with the third node (2C);
the output ends of the voltage comparator A and the voltage comparator B are electrically connected with the input end of the energy storage unit A, and the specific conditions of the voltage comparator during use are as follows:
the voltage comparator group outputs a high level when the "+" input terminal voltage is higher than the "-" input terminal, and outputs a low level when the "+" input terminal voltage is lower than the "-" input terminal;
the output end of the energy storage unit A is electrically connected with the N end of the unidirectional diode;
the driving circuit comprises a driving motor, wherein the output end of the driving motor is relatively fixed on the insulating turntable (1) during installation, the default rotation direction of the driving motor is clockwise, and the insulating turntable (1) is driven to rotate during rotation of the driving motor, so that the relative contact relation between different nodes and different connecting pieces is changed;
the input end of the driving motor is electrically connected with the P end of the unidirectional diode, a branch is connected in parallel to the circuit of the driving motor, a safety switch, a first connecting piece (3A) and a first node (2A) are arranged on the branch respectively, the branch is connected only when the safety switch is closed and the first connecting piece (3A) is contacted with the first node (2A), and the effective resistance of the branch is far smaller than that of the driving motor.
5. A control system for a home energy storage system as defined in claim 4, wherein: according to actual needs, the number of the charging ends is one or two, when the number of the charging ends is one, the charging ends are shared by the energy storage unit B and the energy storage unit C, and when the number of the charging ends is two, the two charging ends are respectively used by the energy storage unit B and the energy storage unit C.
6. The application method of the control system of the household energy storage system is characterized by comprising the following steps of: a control system comprising the home energy storage system of claim 4, comprising the following operations:
the use of the converter is as follows:
when the converter is used, the insulating turntable (1) is driven to rotate by the driving motor, so that the relative positions between different nodes and different connecting pieces are changed, and when the converter rotates, the displacement plate moves relative to the outer frame, so that the nodes can not block the rotation of the insulating turntable (1), and the possibility of the rotation of the insulating turntable (1) is ensured;
when the second connecting piece (3B) is in contact with the second node (2B) or the third node (2C), the output end of the energy storage unit B is communicated with the discharge end, and the whole system energy storage unit B supplies power at the moment;
when the third connecting piece (3C) is in contact with the second node (2B) or the third node (2C), the output end of the energy storage unit C is communicated with the discharge end, and the whole system energy storage unit C supplies power at the moment;
when current exists on the node, the coil block (21) of the node is electrified, and the conductive sheet (23) is close to the nearest conductive cylinder (31) as much as possible under the action of the magnetic fields of the coil block (21) and the permanent magnet (28) and the movable space (24), so that the connecting position is relatively stable;
when no current exists on the node, the coil block (21) of the node is powered off, so that the conductive sheet (23) is kept away from the conductive torch (31) as far as possible under the action of the magnetic field of the permanent magnet (28) and the movable space (24), and the insulating rotary table (1) can rotate conveniently;
the use condition of the whole system is as follows:
when the power supply switching device is used, a voltage comparator A and a voltage comparator B in a voltage comparator group can compare voltage values of a discharging end and a non-discharging end, if the voltage value of the non-discharging end is larger than the voltage value of the discharging end, a high level is output, otherwise, the high level is a low level, the energy storage unit A is powered by a unidirectional diode, when the energy storage unit A is enough to supply power to a driving motor, the driving motor rotates, thereby changing positions between different nodes and different connecting pieces, switching of a working power supply is realized, and when the power supply is switched, due to the use condition of the converter, an electrified node and the connecting piece can move a certain distance relative to an outer frame (25) before being separated, when the connecting piece is about to be contacted with the next node, under the action of a reset spring (26) and a magnetic field, the corresponding connecting piece is contacted with a new node after being separated from the current node, so that the power supply switching time can be greatly reduced, and meanwhile, the condition of continuous switching for a plurality of times cannot occur due to the limited capacity of the energy storage unit A;
when the safety switch is in a closed state and the first connecting piece (3A) is in contact with the first node (2A), the driving motor cannot work, and the energy storage unit B and the energy storage unit C are electrically connected with the discharge end at the moment, an operator can switch between an automatic adjusting mode and a default mode through the safety switch control system, wherein the automatic adjusting mode is that: the system can select an energy storage unit with relatively large effective output voltage as an energy supply mechanism according to the energy storage unit B and the energy storage unit C, and the default mode is as follows: the system uses both the energy storage unit B and the energy storage unit C as energy supply mechanisms.
7. The method of using a control system for a home energy storage system of claim 6, wherein: when the automatic power supply device is used, an operator can change the model of the driving motor, the output voltage of the voltage comparator group and the model of the energy storage unit A, so that the time for the energy storage unit A to supply power to the driving motor completely at a time is changed, and the switching frequency of the functional mechanism in an automatic regulation mode is changed.
8. The method of using a control system for a home energy storage system of claim 6, wherein: when the insulation turntable is used, the limiting mechanism can be added to limit the rotation angle of the insulation turntable (1), and the angle value is ensured to be a multiple of 120 degrees clockwise, so that each node is contacted with a connecting piece after the driving motor rotates each time.
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Address after: No. 3 Jiayu Road, Dongxing District, Dongjiang Science and Technology Park, Zhongkai High tech Zone, Huizhou City, Guangdong Province, 516006 Patentee after: HUIZHOU SUNWAY ELECTRONICS Co.,Ltd. Country or region after: China Address before: 516006 Floors 1-3, Waijuntao Company's factory building, No. 6 Community, Zhongkai High tech Zone, Huizhou City, Guangdong Province Patentee before: HUIZHOU SUNWAY ELECTRONICS Co.,Ltd. Country or region before: China |