Electrical energy storage device and system

Abstract

The application discloses an alternating current direct energy supply power storage device and system, wherein the alternating current direct energy supply power storage device comprises a transmission component and an electrolytic power storage unit; the electrolytic power storage unit comprises a magnetically excitable magnetic circuit, a ring-shaped electrolytic cell filled with electrolyte and an alternating current power supply; the ring-shaped electrolytic cell comprises an electrolytic cell diaphragm for separating the electrolyte into a cathode chamber and an anode chamber; the cathode chamber and the anode chamber are respectively provided with cathode plates and anode plates, and the cathode plates and the anode plates are respectively provided with output interfaces; the magnetically excitable magnetic circuit comprises a plurality of magnetic cores wound with electromagnetic coils; the magnetic cores are arranged outside the ring-shaped electrolytic cell, and a pair of pole shoes is connected to the upper and lower ends of the magnetic cores; the transmission component connected with a prime mover is used for driving the alternating current power supply to generate alternating current; the alternating current power supply generates a rotatable magnetic field between the pair of pole shoes; and the rotatable magnetic field generates an induced electromotive force and an induced current between the electrolytes on the two sides of the electrolytic cell diaphragm. The application can effectively simplify the structure of the electrolytic device and reduce energy loss caused by multiple energy conversions.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electrochemistry, in particular to an alternating current direct power supply energy storage device and system. BACKGROUND

[0002] The power generated by prime movers such as wind turbines and water turbines is affected by natural conditions and has great volatility, which will have a corresponding negative impact on the stability of the power supply grid.

[0003] In order to regulate the stability of the power grid, a power storage device can be used to store part of the power generated by the prime mover during the peak period to avoid excessive power supply to the power grid, and then the power storage device can assist the power supply to the power grid during the valley period to alleviate the power shortage of the power grid.

[0004] In the prior art, the generator for the prime mover needs to be converted from alternating current to direct current to indirectly convert the mechanical energy of the prime mover into direct current, and then a direct current power supply is used to provide direct current energy for charging the power storage device.

[0005] The inventor found that the charging method of the power storage device in the prior art has the defects of too complex structure or too large energy loss in the energy conversion process.

[0006] The information disclosed in this background section is only intended to increase the understanding of the overall background of the present application and should not be considered as admitting or implying in any form that the information constitutes prior art known to those of ordinary skill in the art. SUMMARY

[0007] The present application aims to eliminate the defects of too complex structure or too large energy loss in the energy conversion process in the prior art.

[0008] The present application provides an alternating current direct power supply energy storage device, comprising a transmission component and an electrolytic power storage unit; the electrolytic power storage unit comprises a magnetically excitable magnetic circuit, a ring-shaped electrolytic cell and an alternating current power supply;

[0009] The ring-shaped electrolytic cell is filled with electrolyte; the ring-shaped electrolytic cell comprises an electrolytic cell diaphragm; the electrolytic cell diaphragm is used to separate the electrolyte into a cathode chamber and an anode chamber; the cathode chamber and the anode chamber are respectively provided with a cathode plate and an anode plate; the cathode plate and the anode plate are respectively provided with a direct current output interface;

[0010] The magnetically excitable magnetic circuit comprises a plurality of magnetic cores wound with electromagnetic coils; the magnetic cores are arranged outside the ring-shaped electrolytic cell, and the upper and lower ends of the magnetic cores are connected with a pair of pole shoes adapted to the ring-shaped electrolytic cell;

[0011] The transmission part connected with the prime mover is used to drive the AC power to generate AC;

[0012] The AC power is connected with the electromagnetic coil circuit, and is used to generate a rotatable magnetic field between the pole shoes; the rotatable magnetic field generates an induced potential and an induced current between the electrolytes on both sides of the diaphragm of the electrolytic cell.

[0013] Preferably, in the present application, the AC power includes two-phase or more AC power.

[0014] Preferably, in the present application, when the AC power is three-phase AC, the structure of the excitable magnetic circuit is:

[0015] The magnetic core includes 3n pairs; each pair of the magnetic core is arranged in a concentric circle with the annular electrolytic cell.

[0016] Preferably, in the present application, the magnetic core includes 6; 6 magnetic cores are arranged in a concentric circle with the annular electrolytic cell, and each of the three electromagnetic coils connected with the three phases of the AC power occupies 2 / 3π electrical angle.

[0017] Preferably, in the present application, when the AC power is single-phase AC, the AC power further includes a phase splitter for generating a second phase; the structure of the excitable magnetic circuit is:

[0018] The magnetic core includes 2n pairs; each pair of the magnetic core is arranged in a concentric circle with the annular electrolytic cell.

[0019] Preferably, in the present application, the magnetic core includes 4; 4 magnetic cores are arranged in a concentric circle with the annular electrolytic cell, and each of the two electromagnetic coils connected with the two phases of the AC power occupies about π electrical angle.

[0020] Preferably, in the present application, the phase splitter includes a capacitor, an inductor, and can also be realized by a current transformer.

[0021] Preferably, in the present application, the diaphragm of the electrolytic cell is used to divide the annular electrolytic cell into an anode chamber in the inner ring and a cathode chamber in the outer ring.

[0022] Preferably, in the present application, the inner cavity of the annular electrolytic cell includes a plurality of mutually independent sub-cavities; each of the sub-cavities is provided with an electrolytic cell diaphragm, a cathode plate and an anode plate.

[0023] Preferably, in the present application, it further includes a control unit;

[0024] The control unit includes a monitoring component and a processing unit;

[0025] The monitoring component is used for monitoring the electrolysis reaction speed of the electrolyte; the processing unit is used for generating a control instruction according to the electrolysis reaction speed; the control instruction is used for controlling the magnetic induction intensity and / or rotating speed of the electromagnetic coil and the magnetic core, i.e. the frequency of the alternating current power supply, so as to control the induced potential and / or induced current in the annular electrolytic cell.

[0026] The alternating current power supply is an alternator;

[0027] The prime mover is used for driving the alternator.

[0028] Preferably, in the present application, the prime mover and the alternator are drivingly connected through a transmission component;

[0029] The transmission component further comprises a rotating speed changing mechanism.

[0030] Preferably, in the present application, the prime mover comprises a gas turbine, a steam turbine, a wind turbine or an internal combustion engine.

[0031] Compared with the prior art, the present application has the following beneficial effects:

[0032] According to the above scheme, the alternating current directly powered power storage device or system provided by the present application sets the electrolytic cell as annular, and sets a magnetically excitable magnetic circuit which can generate induced potential and induced current in the electrolyte between the cathode chamber and the anode chamber of the annular electrolytic cell when excited. In this way, the alternating current power supply such as the alternator can generate a rotatable magnetic field on the magnetically excitable magnetic circuit under the driving of the prime mover, so as to generate induced potential and induced current in the electrolyte between the cathode chamber and the anode chamber of the annular electrolytic cell for electrolysis of the electrolyte.

[0033] Since the direct current input to the electrolytic cell in the present application does not need to be set with a rectifier, the induced potential in the electrolyte between the cathode chamber and the anode chamber of the annular electrolytic cell can be generated directly through the power of the alternating current power supply, so that the step of AC-DC conversion is reduced, and the structure of the electrolysis device can be effectively simplified, and the energy loss caused by energy conversion can be reduced.

[0034] The above description is only a summary of the technical scheme of the present application. In order to more clearly understand the technical means of the present application and can be implemented according to the content of the specification, at the same time, in order to make the above and other purposes, technical features and advantages of the present application more easily understood, one or more preferred embodiments are listed below, and are described in detail as follows with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required by the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0036] Figure 1 is a structural schematic diagram of the direct alternating current power supply energy storage system described in the present application;

[0037] Figure 2 is a structural schematic diagram of the excitable magnetic circuit described in the present application;

[0038] Figure 3 is a circuit structural schematic diagram of the energy storage device described in the present application;

[0039] Figure 4 is a cross-sectional structural schematic diagram of the ring-shaped electrolytic cell described in the present application;

[0040] Figure 5 is a working principle schematic diagram of the ring-shaped electrolytic cell described in the present application;

[0041] Figure 6 is a sub-cavity structural schematic diagram of the ring-shaped electrolytic cell described in the present application;

[0042] Figure 7 is another circuit structural schematic diagram of the energy storage device described in the present application. DETAILED DESCRIPTION

[0043] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present application is not limited by the specific embodiments.

[0044] Unless otherwise explicitly indicated, in the entire specification and claims, the term "comprise" or its variants such as "include" or "comprising" and the like will be understood to include the stated element or component, but not exclude other elements or components.

[0045] In this document, the terms "first", "second", and the like are used to distinguish two different elements or parts, and are not used to define a specific position or relative relationship. In other words, in some embodiments, the terms "first", "second", and the like can be interchanged with each other.

[0046] Example One

[0047] In order to eliminate the defects of the existing electrolytic device, such as too complex structure or too large energy loss in the energy conversion process, reference is made to Figures 1 to 6In the embodiment of the present application, an alternating current direct power supply storage device is provided, comprising a transmission component 13 and an electrolytic storage unit; the electrolytic storage unit comprises a magnetically excitable magnetic circuit 11, a ring-shaped electrolytic cell 12 and an alternating current power supply 14;

[0048] The ring-shaped electrolytic cell 12 is filled with electrolyte; the ring-shaped electrolytic cell 12 comprises an electrolytic cell diaphragm 121; the electrolytic cell diaphragm 121 is used to separate the electrolyte into a cathode chamber and an anode chamber; the cathode chamber and the anode chamber are respectively provided with a cathode plate 122 and an anode plate 123; the cathode plate 122 and the anode plate 123 are respectively provided with a direct current output interface; the magnetically excitable magnetic circuit 11 comprises a plurality of magnetic cores 102 wound with electromagnetic coils 101; the magnetic cores 102 are arranged outside the ring-shaped electrolytic cell 12, and a pair of pole shoes (i.e., a first pole shoe 112 and a second pole shoe 113) adapted to the ring-shaped electrolytic cell 12 are connected to the upper and lower ends of the magnetic cores 102; the transmission component 13 connected to a prime mover 01 is used to drive the alternating current power supply 14 to generate alternating current; the alternating current power supply 14 is circuit-connected with the electromagnetic coils 101, and is used to generate a rotatable magnetic field between the pair of pole shoes; the rotatable magnetic field generates induced potential and induced current between the electrolyte on both sides of the electrolytic cell diaphragm 121.

[0049] In the prior art, in the working principle of the electrolytic cell, an alternating current power supply and a rectifier are generally used to provide direct current for the two electrode plates in the electrolytic cell, so that the electrolyte on both sides of the electrolytic cell diaphragm generates potential and current, thereby converting electrical energy into chemical energy which can be stored through the electrolysis of the electrolyte, and thus realizing power storage.

[0050] As shown in the figure, Figures 1 to 3 the embodiment of the present application does not need to be provided with a direct current power supply, but generates induced potential and induced current between the electrolyte on both sides of the electrolytic cell diaphragm through the alternating current power supply 14, and thus causes electrolysis of the electrolyte.

[0051] The working principle of the embodiment of the present application is that, referring to the formation principle of a rotatable magnetic field (also referred to as a rotating magnetic field) in a three-phase motor or a single-phase motor, a plurality of magnetic cores 102 wound with electromagnetic coils 101 are arranged outside the ring-shaped electrolytic cell 12; after the alternating current power supply is turned on, a continuously rotating magnetic field (i.e., a rotatable magnetic field) with a circular trajectory is generated through the pair of pole shoes arranged at the upper and lower ends of the ring-shaped electrolytic cell 12; since the electrolyte in the ring-shaped electrolytic cell 12 is static, but the magnetic field in which the electrolyte is located is rotating, the continuously rotating magnetic field causes the electrolyte in the ring-shaped electrolytic cell 12 to produce relative motion of cutting magnetic lines of force with respect to the magnetic field between the pair of pole shoes; therefore, induced potential is generated in the electrolyte, and thus the electrolysis of the electrolyte is caused.

[0052] In actual application, as shown in the figure, Figure 4 the cross section of the ring-shaped electrolytic cell 12 can be rectangular; in addition, the cross section of the ring-shaped electrolytic cell 12 can also be ring-shaped.

[0053] In the embodiment of the present application, the electrolyte in the annular electrolytic cell 12 needs to be separated into the cathode chamber and the anode chamber by the electrolytic cell diaphragm 121; the setting direction of the electrolytic cell diaphragm 121 needs to be adapted to the pole shoe pair of the excitable magnetic circuit 11, that is, after the electrolytic cell diaphragm 121 separates the annular electrolytic cell 12 into the anode chamber and the cathode chamber, one or more pairs of opposite pole shoes are respectively located on the anode chamber side and the cathode chamber side, so as to achieve the purpose that when the magnetic field rotates along the pole shoe pair, the magnetic field lines between the pole shoe pair are cut by the electrolyte in the annular electrolytic cell 12. Specifically:

[0054] As shown in Figure 5 , when the magnetic field rotates along the pole shoe pair, the electrolyte in the annular electrolytic cell 12 moves relative to the magnetic field (magnetic induction intensity B) between the pole shoe pair, assuming that the relative speed is v, and is perpendicular to the magnetic field line, since the electrolyte is conductive, an induced electric field E i will be generated in the electrolyte:

[0055]

[0056] Under the action of the induced electric field E i , the cations in the electrolyte migrate towards the cathode, and the anions migrate towards the anode, and the current density J generated is:

[0057] J=γE i The electrolysis reaction of the electrolyte in the annular electrolytic cell 12 occurs on the cathode and the anode respectively. The anode and the cathode are connected by the wires of the external circuit to form a current loop, so as to avoid the accumulation of electric charge and cause the voltage to rise. Different from the prior art of externally connecting a direct current power supply, the electric field in the embodiment of the present application occurs in the electrolyte, while the prior art relies on the external application of a direct current power supply.

[0058] Further, as shown in Figure 6 , the inner cavity of the annular electrolytic cell 12 in the embodiment of the present application can also include a plurality of mutually independent sub-cavities 201; the electrolytic cell diaphragm, the cathode plate and the anode plate are arranged in each sub-cavity 201; in this way, each sub-cavity can be used as a sub-electrolytic cell. It should be noted that the number and size of the sub-cavities arranged in the embodiment of the present application can be set by those skilled in the art according to the needs, and are not specifically limited here.

[0059] Further, in the embodiment of the present application, the transmission component further includes a rotating speed variable mechanism (not shown in the figure); the rotating speed variable mechanism is arranged between the prime mover and the rotating shaft, and is used for controlling the rotating speed of the rotating shaft.

[0060] Further, in the embodiment of the present application, a control unit (not shown in the figure) can also be included; the control unit includes a monitoring assembly (the monitoring assembly can specifically include a voltmeter to collect voltage data between the two sides of the electrolytic cell diaphragm 121) and a processing unit; the monitoring assembly is used to monitor the voltage of the electrolyte; the processing unit is used to generate control instructions according to the real-time voltage; the control instructions are used to control the magnetic induction intensity and / or the rotating speed of the electromagnetic coil and the magnetic core, i.e., the frequency of the alternating power supply, so as to control the induced potential and / or induced current in the annular electrolytic cell, and finally achieve smooth storage process and reduce the fluctuation of the electrolysis reaction.

[0061] Further, in the embodiment of the present application, the direct current output interface can also be connected with an inverter (not shown in the figure), so that the alternating current can be output to the load.

[0062] In summary, in the embodiment of the present application, the provided storage device directly powered by alternating current sets the electrolytic cell as annular, and can generate induced potential and induced current in the electrolyte between the cathode chamber and the anode chamber of the annular electrolytic cell when the magnetic field rotates; since the electrolytic cell in the present application does not need to be provided with a direct current power supply, the electrolytic cell can be directly powered by the alternating current power supply, which reduces the energy conversion link, and thus can effectively simplify the structure of the electrolysis device and reduce the energy loss caused by the AC-DC conversion.

[0063] Example Two

[0064] On the basis of the first embodiment, preferably, in the embodiment of the present application, as shown in Figures 1 to 3 When the alternating current power supply 13 is three-phase alternating current, the structure of the magnetizing magnetic circuit 11 can be:

[0065] The magnetic core 102 wound with the electromagnetic coil 101 includes 3n pairs (i.e., the number of magnetic core pairs is a multiple of 3, such as 6, 12, or 18, etc.); taking the number of magnetic cores as 6 (i.e., 3 magnetic core pairs) as an example, the 6 magnetic cores 102 are arranged in concentric circles with the annular electrolytic cell 12, and each of the three electromagnetic coils 101 connected with the three phases of the alternating current power supply 13 occupies 2 / 3π electrical angle.

[0066] Specifically, the six magnetic cores 102 are equidistantly arranged on a circle outside the annular electrolytic cell 12, and three of the six electromagnetic coils 101 are connected with three phases of the alternating current power source 13 as power interfaces, i.e., the three electromagnetic coils 101 are connected with three phases of the alternating current power source 13 respectively; the pole shoe pair (i.e., the first pole shoe 112 and the second pole shoe 113) adapted to the annular electrolytic cell 12; the first pole shoe 112 is above the annular electrolytic cell 12, and the second pole shoe 113 is below the annular electrolytic cell 12; when the electromagnetic coils 101 are connected with three-phase alternating current, a circular rotatable magnetic field is formed between the pole shoes (i.e., the position of the annular electrolytic cell 12), which rotates relative to the stationary annular electrolytic cell 12, and the electrolyte is passively cut by the magnetic force lines, so that the potential and current are generated between the electrolytes on both sides of the electrolytic cell diaphragm, and then the electrolysis of the electrolyte occurs.

[0067] The three-phase power source and the three-phase coil form a circular rotating magnetic field, and the three-phase electromagnetic coil and the magnetic core each occupy 2 / 3π electrical angle, which is converted into an inward rotating magnetic field through the iron core, the magnetic force line direction is from inside to outside, and the magnetic induction intensity B=E / (4.44fNS); f is the power frequency, E is the coil electromotive force, S is the cross-sectional area of the surrounding conductor (such as the iron core), and N is the number of turns.

[0068] The principle of the embodiment of the present application is similar to that of a three-phase motor, and the electromagnetic field composed of the electromagnetic coil and the magnetic core connected in reverse phase sequence by the three-phase symmetrical power source rotates counterclockwise, and the linear velocity v is expressed as follows:

[0069] v=2πrn

[0070] n=60f / p

[0071] Wherein, f is the power frequency, r is the coil radius, p is the number of pole pairs of the coil (magnetic pole), and n is the rotating speed.

[0072] In the embodiment of the present application, the electrolytic cell diaphragm 121 can be arranged to divide the electrolytic cell into an anode chamber on one side of the inner wall of the annular electrolytic cell 12 and a cathode chamber on one side of the outer wall of the annular electrolytic cell 12 (as shown in Figure 1 In addition, according to the different rotating directions of the excitable magnetic circuit 11, the electrolytic cell can also be divided into a cathode chamber on one side of the inner wall of the annular electrolytic cell 12 and an anode chamber on one side of the outer wall of the annular electrolytic cell 12; at this time, in order to adapt the pole shoe pair to the electrolytic cell diaphragm 121, the structure of the excitable magnetic circuit 11 can be arranged as follows:

[0073] A pair or multiple pairs of pole shoes (i.e., the first pole shoe 112 and the second pole shoe 113) are arranged at the upper and lower ends of the magnetic core 102 respectively; and the annular electrolytic cell 12 is located between the pole shoe pair. Preferably, the outer edge of the pole shoe pair is adapted to the outer edge of the annular electrolytic cell 12.

[0074] The magnetic field B applied by the excitable magnetic circuit 11 is perpendicular to the electrolytic cell, and its rotation enables the magnetic field to rotate. The magnetic induction intensity of the excitable magnetic circuit 11 in the electrolytic cell is B, and its rotational linear velocity is v. Since the electrolyte is relatively stationary and the magnetic field is relatively moving, the direction of v in the formula for calculating the induced electric field is opposite to the direction of the magnetic field's motion. Figure 1 For example, the induced electric field direction is from the inner ring to the outer ring. Therefore, one side of the inner wall of the annular electrolytic cell 12 is the anode chamber of the electrolytic cell, and one side of the outer wall is the cathode chamber. In other words, for the annular electrolytic cell 12, such as Figure 5 As shown, an anodic reaction occurs on the inner side and a cathodic reaction occurs on the outer side.

[0075] It should be noted that the specific implementation method and technical effect of the AC direct power supply energy storage device in the embodiments of the present invention can also refer to the AC direct power supply energy storage device corresponding to Embodiment 1, which will not be repeated here.

[0076] Example Three

[0077] Based on Embodiment 1, preferably, in this embodiment of the invention, it can be as follows: Figure 7 As shown, when the AC power supply 13 is a single-phase AC power supply, the AC power supply 13 also includes a phase splitter for generating the second phase (specifically, it can be a capacitor phase splitter, an inductor phase splitter, or a phase splitter including a converter, etc.); at this time, the structure of the excitable magnetic circuit 11 is as follows:

[0078] The magnetic cores wound with electromagnetic coils include 2n pairs (i.e., the number of magnetic core pairs is a multiple of 2, such as 4, 8 or 12, etc.); taking the number of magnetic cores as 4 (i.e. 2 magnetic core pairs) as an example, the 4 magnetic cores are arranged concentrically with the annular electrolytic cell 12, and the two electromagnetic coils connected to the two phases of the AC power supply 13 each occupy approximately π electrical angles, forming a nearly circular rotating magnetic field.

[0079] Specifically, each pair of magnetic cores is equidistantly arranged on a circle outside the annular electrolytic cell. Two of the four electromagnetic coils are spaced apart and serve as power interfaces, that is, the two electromagnetic coils are connected to two phases of the AC power supply respectively. In the pair of pole shoes adapted to the annular electrolytic cell (i.e., the first pole shoe and the second pole shoe), the first pole shoe is above the annular electrolytic cell, and the second pole shoe is below the annular electrolytic cell. When the electromagnetic coils are connected to two phases of AC power, a circular rotatable magnetic field is formed between the pole shoes (that is, at the position of the annular electrolytic cell). This rotatable magnetic field rotates relative to the stationary annular electrolytic cell, causing the electrolyte to passively cut the magnetic lines of force, thereby generating potential and current between the electrolytes on both sides of the electrolytic cell diaphragm, and thus causing the electrolyte to undergo electrolysis.

[0080] Similar to the single-phase alternator which can constitute a split-phase power supply, after the second phase is generated by the split-phase element (for example, split-phase capacitor, split-phase resistor or split-phase inductor or current transformer, and the embodiment of the present application takes split-phase capacitor as an example), the two-phase single-phase power supply and the two electromagnetic coils are connected to form a circular rotating magnetic field, the two-phase electromagnetic coils and the magnetic core each occupy about π electrical angle (that is, four magnetic cores constitute a square, and the diagonals of the square are perpendicular to each other, and the two electromagnetic coils connected by one diagonal are connected with the two phases of the single-phase alternating current power supply respectively), which is converted into an inward rotating magnetic field through the core, the magnetic field direction is from inside to outside, and the magnetic induction intensity B=E / (4.44fNS); f is the power frequency, E is the coil electromotive force, S is the cross-sectional area of the conductor (such as the core) around, and N is the number of turns.

[0081] The split-phase power supply is connected with the electromagnetic coil and the magnetic core in reverse phase sequence, that is, the capacitor split-phase coil is placed in the counterclockwise direction of the main coil, and the synthesized electromagnetic field will rotate counterclockwise, and the linear velocity v is expressed as follows:

[0082] v=2nrn

[0083] n=60f / p

[0084] Wherein, f is the power frequency, r is the coil radius, P is the number of coil pole pairs, and n is the rotating speed.

[0085] It should be noted that in the embodiment of the present application, a single-phase power supply is used, and the number of turns of the split-phase element and the two electromagnetic coils needs to be calculated to form a better annular magnetic field close to a regular circle (that is, a rotatable magnetic field).

[0086] It should be noted that the specific implementation mode and technical effect of the alternating current direct energy storage device in the embodiment of the present application can also refer to the corresponding alternating current direct energy storage device in embodiment one, and will not be repeated here.

[0087] Example Four

[0088] In another aspect of the embodiment of the present application, an alternating current direct energy storage system is also provided, as shown in Figure 1 The alternating current direct energy storage system comprises a prime mover 01 and the alternating current direct energy storage device described in the above embodiments.

[0089] In the embodiment of the present application, the alternator (i.e. the alternating current power supply 14) connected with the prime mover 01 as the alternating current power supply does not need to set a rectifier to convert alternating current to direct current, but directly generates induced electromotive force and induced current between the electrolyte on both sides of the electrolytic cell diaphragm 121, and further makes the electrolyte electrolyze; taking the wind turbine as the prime mover 01 as an example, the working principle of the embodiment of the present application is that when the wind turbine outputs mechanical energy, the transmission component 13 can drive the alternator to generate electricity, at this time, a circular rotatable magnetic field can be generated on the excitable magnetic circuit 11; since the annular electrolytic cell 12 is fixed, the rotatable magnetic field will be cut by the magnetic force line of the electrolyte in the annular electrolytic cell 12, and further the induced electromotive force and induced current can be generated in the electrolyte, and further the electrolyte electrolyzes.

[0090] In actual application, the prime mover 01 in the embodiment of the present application can specifically include / without limitation gas turbine, steam turbine, wind turbine, water turbine, internal combustion engine, motor or other.

[0091] It should be noted that the specific implementation mode and technical effect of the alternating current direct energy supply storage system in the embodiment of the present application can refer to the corresponding alternating current direct energy supply storage device of the embodiment one, and will not be repeated here.

[0092] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A power storage device that directly supplies energy via alternating current, characterized in that, The device comprises a transmission component and an electrolytic storage unit; the electrolytic storage unit comprises a magnetically excitable magnetic circuit, a ring-shaped electrolytic cell and an alternating current power supply; The ring-shaped electrolytic cell is filled with electrolyte; the ring-shaped electrolytic cell comprises an electrolytic cell diaphragm; the electrolytic cell diaphragm is used to separate the electrolyte into a cathode chamber and an anode chamber; the cathode chamber and the anode chamber are respectively provided with a cathode plate and an anode plate; the cathode plate and the anode plate are respectively provided with a direct current output interface; The magnetically excitable magnetic circuit comprises a plurality of magnetic cores wound with electromagnetic coils; the magnetic cores are arranged outside the ring-shaped electrolytic cell, and the upper and lower ends of the magnetic cores are connected with a pair of pole shoes adapted to the ring-shaped electrolytic cell; The transmission component connected with a prime mover is used to drive the alternating current power supply to generate alternating current; The alternating current power supply is connected with the electromagnetic coil circuit, and is used to generate a rotatable magnetic field between the pair of pole shoes; the rotatable magnetic field generates an induced potential and an induced current between the electrolyte on both sides of the electrolytic cell diaphragm.

2. The AC-directly-powered electricity storage device according to claim 1, characterized by The alternating current power supply comprises two or more phases of alternating current.

3. The AC-directly-powered electricity storage device according to claim 2, characterized by When the alternating current power supply is three-phase alternating current, the structure of the magnetically excitable magnetic circuit is as follows: The magnetic cores comprise 3n pairs; each pair of the magnetic cores is arranged in a concentric circle with the ring-shaped electrolytic cell.

4. The AC-directly-powered electricity storage device according to claim 3, characterized by The magnetic cores comprise 6; the 6 magnetic cores are arranged in a concentric circle with the ring-shaped electrolytic cell, and each of the three electromagnetic coils connected with the three phases of the alternating current power supply occupies 2 / 3π electrical angle.

5. The AC-directly-powered electricity storage device according to claim 2, characterized by When the alternating current power supply is single-phase alternating current, the alternating current power supply further comprises a phase splitter for generating a second phase; the structure of the magnetically excitable magnetic circuit is as follows: The magnetic cores comprise 2n pairs; each pair of the magnetic cores is arranged in a concentric circle with the ring-shaped electrolytic cell.

6. The AC-directly-powered electricity storage device according to claim 5, characterized by The magnetic cores comprise 4; the 4 magnetic cores are arranged in a concentric circle with the ring-shaped electrolytic cell, and each of the two electromagnetic coils connected with the two phases of the alternating current power supply occupies π electrical angle.

7. The AC-directly-powered electricity storage device according to claim 5, wherein The phase splitter comprises a capacitor, an inductor or a current transformer.

8. The alternating current directly powered storage device according to claim 3 or 4, characterized in that, The electrolytic cell diaphragm is used to divide the ring-shaped electrolytic cell into an anode chamber in an inner ring and a cathode chamber in an outer ring.

9. The AC-directly-powered electricity storage device according to claim 8, characterized by The inner cavity of the ring-shaped electrolytic cell comprises a plurality of mutually independent sub-cavities; each of the sub-cavities is provided with an electrolytic cell diaphragm, a cathode plate and an anode plate.

10. The AC electrically powered electrical storage device of claim 1, wherein, Further comprising a control unit; The control unit comprises a monitoring assembly and a processing unit; The monitoring assembly is used to monitor the electrolysis reaction speed of the electrolyte; the processing unit is used to generate a control instruction according to the electrolysis reaction speed; the control instruction is used to control the magnetic induction intensity and / or the rotation speed of the electromagnetic coil and the magnetic core, so as to control the induced potential and / or the induced current in the ring-shaped electrolytic cell.

11. An AC-directly-powered electricity storage system, characterized by comprising: The device comprises a prime mover and the alternating current directly powered storage device according to any one of claims 1 to 10; The alternating current power supply is an alternating current generator; The prime mover is used to drive the alternating current generator.

12. The alternating current directly energized electrical storage system of claim 11, wherein, The prime mover and the alternating current generator are drivingly connected through a transmission component; The transmission component further comprises a rotation speed changing mechanism.

13. The alternating current directly energized electrical storage system of claim 12, wherein, The prime mover comprises a gas turbine, a steam turbine, a wind turbine or an internal combustion engine.

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