CN211629876U - Energy storage flywheel double-electric charging and discharging control device and system - Google Patents
Energy storage flywheel double-electric charging and discharging control device and system Download PDFInfo
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- CN211629876U CN211629876U CN202020618495.5U CN202020618495U CN211629876U CN 211629876 U CN211629876 U CN 211629876U CN 202020618495 U CN202020618495 U CN 202020618495U CN 211629876 U CN211629876 U CN 211629876U
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Abstract
The utility model provides a two electric charge and discharge controlling means of energy storage flywheel and system, include: the device comprises a main controller, and a charging motor module, a flywheel module and a discharging motor module which are in communication connection with the main controller; the flywheel module comprises a flywheel body; the charging motor module, the flywheel module and the discharging motor module are sequentially connected, the input end of the charging motor module is also connected with a power grid system, and the output end of the discharging motor module is also connected with a load; the power of a charging motor in the charging motor module is smaller than that of a discharging motor in the discharging motor module; the charging motor module is used for entering a charging mode under the triggering of the main controller and acquiring electric energy from a power grid system to charge the flywheel body; the main controller is used for triggering the discharging motor module to enter a discharging mode after the flywheel body is charged to the rated rotating speed, and supplying power to the load, so that the self-discharging rate of the flywheel body is reduced, and the energy utilization rate is improved.
Description
Technical Field
The utility model belongs to the technical field of the flywheel energy storage technique and specifically relates to a two electric charge and discharge controlling means of energy storage flywheel and system are related to.
Background
The existing magnetic suspension energy storage flywheel usually adopts a group of three-phase permanent magnet synchronous motors or switched reluctance motors as a driving mechanism, wherein the three-phase permanent magnet synchronous motors or switched reluctance motors are integrated machines of a motor and a generator, namely, the three-phase permanent magnet synchronous motors or switched reluctance motors are used as the motor when the flywheel is charged, electric energy flows into a flywheel body through the three-phase permanent magnet synchronous motors or switched reluctance motors to be stored in a kinetic energy form, the three-phase permanent magnet synchronous motors or switched reluctance motors are used as the generator when the flywheel is discharged, and the kinetic energy of the flywheel body is converted into electric energy through the three-phase permanent magnet synchronous motors or switched reluctance. Although the existing method can realize charging and discharging of the flywheel, larger additional loss can be introduced, the self-discharge rate of the flywheel body is increased, energy loss is caused, and the service life of the motor is shortened.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an energy storage flywheel two electricity charge and discharge controlling means and system to alleviate above-mentioned problem, reduced the self-discharge rate of flywheel body, improved energy utilization.
In a first aspect, the embodiment of the utility model provides a two electric charge and discharge controlling means of energy storage flywheel, the device includes: the device comprises a main controller, and a charging motor module, a flywheel module and a discharging motor module which are in communication connection with the main controller;
the flywheel module comprises a flywheel body; the charging motor module, the flywheel module and the discharging motor module are sequentially connected, the input end of the charging motor module is also connected with a power grid system, and the output end of the discharging motor module is also connected with a load; the power of a charging motor in the charging motor module is smaller than that of a discharging motor in the discharging motor module;
the charging motor module is used for entering a charging mode under the triggering of the main controller and acquiring electric energy from the power grid system to charge the flywheel body;
and the main controller is used for triggering the discharging motor module to enter a discharging mode after the flywheel body is charged to the rated rotating speed so as to supply power to the load.
With reference to the first aspect, embodiments of the present invention provide a first possible implementation manner of the first aspect, wherein the charging motor module further includes an IGBT inverter, a rectifier, and a circuit breaker;
one end of the breaker is connected with the power grid system, the other end of the breaker is connected with the rectifier, the rectifier is also connected with one end of the IGBT inverter, and the other end of the IGBT inverter is connected with the charging motor;
the rectifier is used for converting alternating-current voltage output by the power grid system into first direct-current voltage and sending the first direct-current voltage to the IGBT inverter;
the IGBT inverter is used for being triggered by the main controller to be started, converting the first direct-current voltage into charging voltage, and sending the charging voltage to the charging motor to drive the charging motor to charge the flywheel body.
With reference to the first possible implementation manner of the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein the discharge motor module further includes an IGBT rectifier; one end of the IGBT rectifier is connected with the discharge motor, and the other end of the IGBT rectifier is connected with the load;
and the IGBT rectifier is used for converting the electric energy discharged by the flywheel body into a second direct current voltage so as to supply power to the load.
With reference to the second possible implementation manner of the first aspect, embodiments of the present invention provide a third possible implementation manner of the first aspect, wherein the flywheel module further includes a magnetic bearing controller communicatively connected to the flywheel body;
the magnetic bearing controller is used for triggering the flywheel body to enter a suspension mode so as to charge or discharge.
With reference to the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the apparatus further includes a CAN bus;
the main controller is also used for being respectively in communication connection with the IGBT inverter, the IGBT rectifier and the magnetic bearing controller through the CAN bus.
With reference to the fourth possible implementation manner of the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, wherein the apparatus further includes a display screen communicatively connected to the main controller;
the main controller is also used for acquiring telemetering data of the IGBT inverter, the IGBT rectifier and the magnetic bearing controller and sending the telemetering data to the display screen for displaying.
With reference to the first aspect, embodiments of the present invention provide a sixth possible implementation manner of the first aspect, where the apparatus further includes a power module;
the power module is used for supplying power to the main controller, the charging motor module, the flywheel module and the discharging motor module.
With reference to the sixth possible implementation manner of the first aspect, an embodiment of the present invention provides a seventh possible implementation manner of the first aspect, wherein the power module further includes a distribution unit; wherein the allocation unit includes an input port and an output port;
the input port is used for acquiring 220VAC voltage;
and the output port is used for outputting the distributed voltage to the main controller, the charging motor module, the flywheel module and the discharging motor module.
With reference to the seventh possible implementation manner of the first aspect, an embodiment of the present invention provides an eighth possible implementation manner of the first aspect, where the input port includes a first input port and a second input port;
the first input port is used for acquiring a first path of 220VAC voltage from the power grid system;
the second input port is used for acquiring a second path of 220VAC voltage; wherein, the second path 220VAC voltage is obtained by direct current bus conversion.
In a second aspect, the embodiment of the present invention further provides a dual-electrical charging and discharging control system for an energy storage flywheel, wherein the system includes the first aspect the dual-electrical charging and discharging control device for the energy storage flywheel.
The embodiment of the utility model provides a following beneficial effect has been brought:
the embodiment of the utility model provides a two electric charge-discharge control devices of energy storage flywheel and system, include: the device comprises a main controller, and a charging motor module, a flywheel module and a discharging motor module which are in communication connection with the main controller; the flywheel module comprises a flywheel body; the charging motor module, the flywheel module and the discharging motor module are sequentially connected, the input end of the charging motor module is also connected with a power grid system, and the output end of the discharging motor module is also connected with a load; the power of a charging motor in the charging motor module is smaller than that of a discharging motor in the discharging motor module; the charging motor module is used for entering a charging mode under the triggering of the main controller and acquiring electric energy from a power grid system to charge the flywheel body; the main controller is used for triggering the discharging motor module to enter a discharging mode after the flywheel body is charged to the rated rotating speed, and supplying power to the load, so that the self-discharging rate of the flywheel body is reduced, the energy utilization rate is improved, and the service lives of the charging motor and the discharging motor are prolonged.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a dual-electrical charging and discharging control device for an energy storage flywheel according to an embodiment of the present invention;
fig. 2 is a schematic view of another energy storage flywheel dual-electrical charging and discharging control device provided in the embodiment of the present invention;
fig. 3 is a schematic view of another energy storage flywheel dual-electrical charging and discharging control device provided in the embodiment of the present invention;
fig. 4 is a schematic view of another energy storage flywheel dual-electrical charging and discharging control device provided in the embodiment of the present invention.
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10-a main controller; 20-a charging motor module; 21-a charging motor; 22-IGBT inverter; 23-a rectifier; 24-a circuit breaker; 30-a flywheel module; 31-a flywheel body; 32-a magnetic bearing controller; 40-a discharge motor module; 41-discharge motor; 42-IGBT rectifiers; a 50-CAN bus; 60-a display screen; 70-a power supply module; 71-a dispensing unit; 711 — first input port; 712-a second input port; 713-output port.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Although the existing magnetic suspension energy storage flywheel system adopting a single set of motor has simple structure and lower cost, for the technical field of high-power flywheel application, the loss of the high-power motor is larger, and the power required by standby is larger; in addition, because the motor is used as a motor and a generator, the additional loss of the motor is large, the self-discharge rate of the flywheel body is increased, and the large energy loss is caused. Meanwhile, in practical application, the flywheel energy storage system generally needs to perform high-power discharge control and low-power or medium-power charge control, and for a group of high-power motors, the performance of the motors is not fully utilized. Therefore, although the existing magnetic suspension energy storage flywheel adopting a single set of motor can realize the charging and discharging of the flywheel, larger additional loss can be introduced, the self-discharging rate of the flywheel body is increased, the energy loss is caused, and the service life of the motor is reduced.
To the above problem, the embodiment of the utility model provides a two electric charge and discharge controlling means of energy storage flywheel and system has reduced the loss of flywheel body and the self-discharge rate of flywheel body to improve energy utilization, simultaneously, prolonged the life of charging motor and discharge motor.
For the convenience of understanding the present embodiment, the following first describes in detail an energy storage flywheel dual-electrical charging and discharging control device provided by an embodiment of the present invention.
The first embodiment is as follows:
the embodiment of the utility model provides a two electric charge and discharge controlling means of energy storage flywheel, figure 1 is the utility model provides a pair of electric charge and discharge controlling means's of energy storage flywheel schematic diagram, as shown in figure 1, the device includes: the main controller 10, and the charging motor module 20, the flywheel module 30 and the discharging motor module 40 which are all in communication connection with the main controller 10; the flywheel module 30 includes a flywheel body 31; the charging motor module 20, the flywheel module 30 and the discharging motor module 40 are sequentially connected, the input end of the charging motor module 20 is also connected with a power grid system, and the output end of the discharging motor module 40 is also connected with a load; wherein the power of the charging motor 21 in the charging motor module 20 is smaller than the power of the discharging motor 41 in the discharging motor module 40.
The charging motor module 20 is configured to enter a charging mode under the triggering of the main controller 10, and obtain electric energy from the power grid system to charge the flywheel body 31; the main controller 10 is further configured to trigger the discharging motor module 40 to enter a discharging mode after the flywheel body 31 is charged to the rated rotation speed, so as to supply power to the load.
Therefore, the embodiment of the utility model provides a control structure of miniwatt motor + high-power generator, flywheel body 31 adopts the charging motor 21 of miniwatt when charging to rotate at a high speed as actuating mechanism drive flywheel body 31's rotor promptly, then disconnects the charging motor 21 of miniwatt when flywheel body 31 discharges, opens powerful discharging motor 41 simultaneously, and the energy of flywheel body 31 storage is carried to the load through powerful discharging motor 41, for the load power supply. The charging motor 21 has low power and low standby loss, so that the electric efficiency of the flywheel body 31 can be obviously improved, and the self-discharge rate can be reduced; meanwhile, when the flywheel body 31 is in a standby state, the high-power discharge motor 41 is in a closed state, that is, the high-power discharge motor 41 is only used under a power generation working condition, so that the service life of the high-power discharge motor 41 can be greatly prolonged, and the failure rate of the discharge motor 41 is reduced.
In addition, the structure of the low-power charging motor 21+ the high-power discharging motor 41 also has a dual redundancy function, that is, when the high-power discharging motor 41 fails to recover, the low-power charging motor 21 can still control the flywheel body 31 to charge and discharge, so that the flywheel body 31 can store and release energy. Meanwhile, once the flywheel body 31 fails or is damaged, the charging motor 21 with low power can still realize reliable braking, so that the operation safety of the flywheel body 31 is ensured. Similarly, when the low-power charging motor 21 fails to recover, the high-power discharging motor 41 can also be used as a motor and generator integrated machine, so that the flywheel body 31 can store and release energy. And, the low-power charging motor 21 has the advantages of lower cost, smaller volume and simple structure, so the structure of the low-power charging motor 21+ the high-power discharging motor 41 is completely suitable for the existing application scenarios.
The embodiment of the utility model provides a two electric charge and discharge controlling means of energy storage flywheel, include: the device comprises a main controller, and a charging motor module, a flywheel module and a discharging motor module which are in communication connection with the main controller; the flywheel module comprises a flywheel body; the charging motor module, the flywheel module and the discharging motor module are sequentially connected, the input end of the charging motor module is also connected with a power grid system, and the output end of the discharging motor module is also connected with a load; the power of a charging motor in the charging motor module is smaller than that of a discharging motor in the discharging motor module; the charging motor module is used for entering a charging mode under the triggering of the main controller and acquiring electric energy from a power grid system to charge the flywheel body; the main controller is used for triggering the discharging motor module to enter a discharging mode after the flywheel body is charged to the rated rotating speed, and supplying power to the load, so that the self-discharging rate of the flywheel body is reduced, the energy utilization rate is improved, and the service life of the motor is prolonged.
In practical applications, the charging motor module 20 further includes an IGBT (Insulated Gate bipolar transistor) inverter, a rectifier, and a circuit breaker; as shown in fig. 2, one end of the breaker 24 is connected to the grid system, the other end is connected to the rectifier 23, the rectifier 23 is further connected to one end of the IGBT inverter 22, and the other end of the IGBT inverter 22 is connected to the charging motor 21; the rectifier 23 is configured to convert an ac voltage output by the grid system into a first dc voltage, and send the first dc voltage to the IGBT inverter 22; the IGBT inverter 22 is configured to start under the trigger of the main controller 10, convert the first direct-current voltage into a charging voltage, and transmit the charging voltage to the charging motor 21, so as to drive the charging motor 21 to charge the flywheel body 31.
Specifically, the power grid system provides a three-phase 380VAC standard voltage, and is connected with the breaker 24, when the breaker 24 is closed, the three-phase 380VAC standard voltage is converted into a first direct current voltage of 500-600 VDC through the rectifier 23, and when the main controller 10 triggers and starts the IGBT inverter 22, the first direct current voltage of 500-600 VDC is further converted into a charging voltage required by the charging motor 21 through the IGBT inverter 22 so as to drive the charging motor 21 to charge the flywheel body 31. The rectifier 23 may be a diode uncontrolled rectifier, or may be another rectifier, which is not limited in the embodiment of the present invention.
Further, as shown in fig. 2, a low-power charging motor 21 (having a power of ten kilowatts to several tens kilowatts) is provided on the upper side of the flywheel body 31, and thus, the rotor of the flywheel body 31 can be driven to rotate at a high speed. A discharge motor module 40 is arranged on the lower side of the flywheel body 31, wherein the discharge motor module 40 further comprises an IGBT rectifier 42; one end of the IGBT rectifier 42 is connected to the discharge motor 41, and the other end is connected to a load; the IGBT rectifier 42 is used to convert the electric energy discharged from the flywheel body 31 into a second dc voltage to supply power to the load.
In addition, in practical applications, the flywheel module 30 further includes a magnetic bearing controller 32 communicatively connected to the flywheel body 31; the magnetic bearing controller 32 is used to trigger the flywheel body 31 into a levitating mode for charging or discharging. Specifically, the flywheel body 31 enters a suspension mode under the control trigger of the magnetic bearing controller 32, so that the rotor of the flywheel body 31 rotates in a non-contact manner; and a high-power discharge motor 41 (with power of several hundred kilowatts to several megawatts) is installed at the lower side of the flywheel body 31, and a high-power IGBT rectifier 42 is connected to the output side of the discharge motor 41, so that the electric energy discharged from the flywheel body 31 is converted into a stable second direct-current voltage and is output to the direct-current bus voltage side to supply power to the load.
Further, the apparatus further includes a Controller Area Network (CAN) bus, as shown in fig. 2, the main Controller 10 is further configured to be communicatively connected to the IGBT inverter 22, the IGBT rectifier 42 and the magnetic bearing Controller 32 through the CAN bus 50, respectively, so as to monitor the states of the IGBT inverter 22, the IGBT rectifier 42 and the magnetic bearing Controller 32.
In addition, the device also comprises a display screen 60 which is in communication connection with the main controller 10, at this time, the main controller 10 is also used for collecting telemetering data of the IGBT inverter 22, the IGBT rectifier 42 and the magnetic bearing controller 32 and sending the telemetering data to the display screen 60 for displaying; and, various command information set by the user is received through the display screen 60 to control the charging and discharging process of the flywheel body 31.
Further, on the basis of the above embodiment, as shown in fig. 3, the above apparatus further includes a power module 70; the power module 70 is used for supplying power to the main controller 10, the charging motor module 20, the flywheel module 30 and the discharging motor module 40. Specifically, the power module 70 is used to power the main controller 10, the IGBT inverter 22, the IGBT rectifier 42, and the magnetic bearing controller 32 to ensure the normal operation of the main controller 10, the IGBT inverter 22, the IGBT rectifier 42, and the magnetic bearing controller 32.
Specifically, as shown in fig. 4, the power supply module 70 further includes a distribution unit 71; among them, the distribution unit 71 includes an input port and an output port; the input port is used for acquiring 220VAC voltage; the output port is used for outputting the distributed voltage to the main controller 10, the charging motor module 20, the flywheel module 30 and the discharging motor module 40. Further, the input ports include a first input port and a second input port; the first input port is used for acquiring a first path of 220VAC voltage from a power grid system; the second input port is used for acquiring a second path of 220VAC voltage; the second path of 220VAC voltage is obtained by converting a direct current bus.
In practical applications, in order to improve the reliability and redundancy of the power supply system, as shown in fig. 4, the power module 70 adopts a direct current power supply + alternating current 220VAC power supply mode, and performs power processing and distribution through the distribution unit 71, where the distribution unit 71 includes a 220V power supply system distribution circuit board to process and distribute power. Specifically, the input ports include a first input port 711 and a second input port 712, and the DC bus side voltage DC +, DC-is converted into a second path 220VAC voltage through the DC power system and is input to the distribution unit 71 through the second input port 712; meanwhile, the power grid system is converted into a first path of 220VAC voltage through a 220VAC input system, and the first path of 220VAC voltage is input to the distribution unit 71 through a first input port 711; in practical application, the first path of 220VAC voltage is preferentially taken as a main voltage, and when the first path of 220VAC voltage is lacked, the second path of 220VAC voltage is automatically switched to supply power. The distribution unit 71 outputs a stable alternating current 220VAC voltage through the output port 713, one part is respectively connected to the fan system and the vacuum pump system, the other part is connected to the input end of the switching power supply, and the output end of the switching power supply outputs stable direct current voltages of 24V and 110V, so as to respectively provide working power for the magnetic bearing controller 32, the main controller 10, the IGBT rectifier 42 and the IGBT inverter 22, thereby ensuring that the flywheel body 31 is reliably charged and discharged.
On the basis of the above embodiment, the embodiment of the utility model provides a charge-discharge control logic of two electric charge-discharge control devices of energy storage flywheel is still provided. The method comprises the following specific steps:
the method comprises the following steps of firstly, ensuring that the voltage of a power grid system is normal (usually 380VAC +/-10% and 220VAC +/-10%), and measuring by using a voltmeter or an oscilloscope;
secondly, supplying power to the magnetic bearing controller, the main controller, the IGBT rectifier and the IGBT inverter according to the power supply module shown in the figure 4, ensuring that a weak current system supplies power normally, ensuring that the 24V voltage and the 110V voltage are within an allowable range, ensuring that a fan system operates normally and the rotating speed reaches a rated level, ensuring that a vacuum pump system operates continuously, and judging that the vacuum value of a flywheel body is qualified when the vacuum value reaches a level below 10 pa;
thirdly, after the main controller is electrified, firstly inquiring the state of the magnetic bearing controller, sending a suspension command after the magnetic bearing controller succeeds in self-checking, triggering the flywheel body to a suspension mode, and sending a mark with normal suspension to the main controller after the flywheel body is in the suspension mode;
fourthly, closing the circuit breaker in the figure 2, starting the diode rectifier to work at the moment, converting to obtain a first direct-current voltage of 500-600V, supplying power to the IGBT inverter for starting, sending data such as a set rotating speed value, a charging power value, a standby current value and a protection parameter value to the IGBT inverter after the main controller inquires that the IGBT inverter is normally supplied with power through a CAN (controller area network) bus, and sending a starting charging control command input by a user on a display screen to the IGBT inverter;
fifthly, after receiving a charging control starting command, the IGBT inverter automatically enters the charging state of the charging motor until the rated rotating speed of the charging motor is reached and the charging motor is standby at a lower current, in the process, the magnetic bearing controller monitors the state of the flywheel body in real time and transmits the state information back to the main controller, and once the flywheel body fails, the IGBT inverter enters a braking operation;
sixthly, after the flywheel body is charged to the rated rotating speed, the main controller inquires that the flywheel enters the rated rotating speed state, the main controller sends a shutdown command to the IGBT inverter, and when the IGBT inverter stops working, a shutdown identifier is transmitted back to the main controller;
seventhly, after receiving the stop identifier sent by the IGBT inverter, the main controller triggers an IGBT rectifier at the rear end of the discharge motor; at the moment, the flywheel body enters a discharging state, and energy is transmitted to DC + and DC-on the side of the direct current bus through the IGBT rectifier so as to ensure the high-power electric quantity requirement of the electric load;
eighthly, in the process of high-power discharge of the flywheel body, the IGBT rectifier sends the telemetering data of the IGBT rectifier to the main controller through the CAN bus, and the magnetic bearing controller sends the running state of the flywheel body to the main controller; in the process, if the main controller inquires that the rotating speed of the flywheel body is too low, the main controller immediately disconnects the IGBT rectifier, simultaneously starts the IGBT inverter on the side of the power generation motor, and drives the power generation motor to charge the flywheel body through the IGBT inverter so as to enable the flywheel body to store energy, and the operation is performed periodically, so that the self-discharge rate of the flywheel body is reduced, and the energy utilization rate is improved.
Example two:
on the basis of the embodiment, the embodiment of the utility model provides a still provide two electric charge and discharge control systems of energy storage flywheel, including two electric charge and discharge control devices of above-mentioned energy storage flywheel to realize the miniwatt charge control + the high-power discharge control of flywheel body, reduced flywheel body standby loss, improved the life-span of motor operation, and, strengthened the redundancy and the security of system.
The embodiment of the utility model provides a two electric charge-discharge control systems of energy storage flywheel, include: the device comprises a main controller, and a charging motor module, a flywheel module and a discharging motor module which are in communication connection with the main controller; the flywheel module comprises a flywheel body; the charging motor module, the flywheel module and the discharging motor module are sequentially connected, the input end of the charging motor module is also connected with a power grid system, and the output end of the discharging motor module is also connected with a load; the power of a charging motor in the charging motor module is smaller than that of a discharging motor in the discharging motor module; the charging motor module is used for entering a charging mode under the triggering of the main controller and acquiring electric energy from a power grid system to charge the flywheel body; the main controller is used for triggering the discharging motor module to enter a discharging mode after the flywheel body is charged to the rated rotating speed, and supplying power to the load. The self-discharging rate of the flywheel body is increased, the energy utilization rate is improved, and meanwhile the service life of the motor is prolonged.
The device provided by the embodiment of the invention can be specific hardware on equipment or software or firmware installed on the equipment and the like. The embodiment of the present invention provides an apparatus, which has the same technical effects as the aforementioned method embodiment, and for the sake of brief description, the embodiment of the apparatus is not mentioned, and reference can be made to the corresponding contents in the aforementioned method embodiment. It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the foregoing systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, each functional unit in the embodiments provided in the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A dual electrical charge and discharge control device for an energy storage flywheel, the device comprising: the device comprises a main controller, and a charging motor module, a flywheel module and a discharging motor module which are in communication connection with the main controller;
the flywheel module comprises a flywheel body; the charging motor module, the flywheel module and the discharging motor module are sequentially connected, the input end of the charging motor module is also connected with a power grid system, and the output end of the discharging motor module is also connected with a load; the power of a charging motor in the charging motor module is smaller than that of a discharging motor in the discharging motor module;
the charging motor module is used for entering a charging mode under the triggering of the main controller and acquiring electric energy from the power grid system to charge the flywheel body;
and the main controller is used for triggering the discharging motor module to enter a discharging mode after the flywheel body is charged to the rated rotating speed so as to supply power to the load.
2. The dual electrical charge and discharge control device of an energy storage flywheel of claim 1, wherein the charging motor module further comprises an IGBT inverter, a rectifier and a circuit breaker;
one end of the breaker is connected with the power grid system, the other end of the breaker is connected with the rectifier, the rectifier is also connected with one end of the IGBT inverter, and the other end of the IGBT inverter is connected with the charging motor;
the rectifier is used for converting alternating-current voltage output by the power grid system into first direct-current voltage and sending the first direct-current voltage to the IGBT inverter;
the IGBT inverter is used for being triggered by the main controller to be started, converting the first direct-current voltage into charging voltage, and sending the charging voltage to the charging motor to drive the charging motor to charge the flywheel body.
3. The energy storage flywheel dual-electric charge and discharge control device as claimed in claim 2, wherein the discharge motor module further comprises an IGBT rectifier; one end of the IGBT rectifier is connected with the discharge motor, and the other end of the IGBT rectifier is connected with the load;
and the IGBT rectifier is used for converting the electric energy discharged by the flywheel body into a second direct current voltage so as to supply power to the load.
4. The dual electrical charge and discharge control apparatus for an energy storage flywheel of claim 3 wherein the flywheel module further comprises a magnetic bearing controller communicatively coupled to the flywheel body;
the magnetic bearing controller is used for triggering the flywheel body to enter a suspension mode so as to charge or discharge.
5. The dual electrical charge and discharge control device of an energy storage flywheel of claim 4, characterized in that the device further comprises a CAN bus;
the main controller is also used for being respectively in communication connection with the IGBT inverter, the IGBT rectifier and the magnetic bearing controller through the CAN bus.
6. The energy storage flywheel dual-electric charge and discharge control device as claimed in claim 5, further comprising a display screen in communication connection with the main controller;
the main controller is also used for acquiring telemetering data of the IGBT inverter, the IGBT rectifier and the magnetic bearing controller and sending the telemetering data to the display screen for displaying.
7. The dual electrical charge and discharge control device of an energy storage flywheel of claim 1, characterized in that the device further comprises a power module;
the power module is used for supplying power to the main controller, the charging motor module, the flywheel module and the discharging motor module.
8. The energy storage flywheel dual-electric charge and discharge control device as claimed in claim 7, wherein the power module further comprises a distribution unit; wherein the allocation unit includes an input port and an output port;
the input port is used for acquiring 220VAC voltage;
and the output port is used for outputting the distributed voltage to the main controller, the charging motor module, the flywheel module and the discharging motor module.
9. The energy storage flywheel dual-electric charge and discharge control device as claimed in claim 8, wherein the input ports comprise a first input port and a second input port;
the first input port is used for acquiring a first path of 220VAC voltage from the power grid system;
the second input port is used for acquiring a second path of 220VAC voltage; wherein, the second path 220VAC voltage is obtained by direct current bus conversion.
10. An energy storage flywheel dual-electrical charge and discharge control system, characterized in that the system comprises the energy storage flywheel dual-electrical charge and discharge control device of any one of the claims 1-9.
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| CN202020618495.5U CN211629876U (en) | 2020-04-22 | 2020-04-22 | Energy storage flywheel double-electric charging and discharging control device and system |
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| CN202020618495.5U CN211629876U (en) | 2020-04-22 | 2020-04-22 | Energy storage flywheel double-electric charging and discharging control device and system |
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