CN110034630B - Starting and stopping control method and device of flywheel energy storage device based on magnetic suspension bearing - Google Patents
Starting and stopping control method and device of flywheel energy storage device based on magnetic suspension bearing Download PDFInfo
- Publication number
- CN110034630B CN110034630B CN201910236772.8A CN201910236772A CN110034630B CN 110034630 B CN110034630 B CN 110034630B CN 201910236772 A CN201910236772 A CN 201910236772A CN 110034630 B CN110034630 B CN 110034630B
- Authority
- CN
- China
- Prior art keywords
- starting
- state
- flywheel
- energy storage
- storage device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0444—Details of devices to control the actuation of the electromagnets
- F16C32/0451—Details of controllers, i.e. the units determining the power to be supplied, e.g. comparing elements, feedback arrangements with P.I.D. control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0474—Active magnetic bearings for rotary movement
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/02—Additional mass for increasing inertia, e.g. flywheels
- H02K7/025—Additional mass for increasing inertia, e.g. flywheels for power storage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/09—Structural association with bearings with magnetic bearings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Abstract
The invention discloses a starting and stopping control method and a starting and stopping control device of a flywheel energy storage device based on a magnetic suspension bearing, wherein the method comprises the following steps: the hardware configuration and the electrical connection relation before electrifying meet the preset configuration conditions, the running parameter information after electrifying meets the preset starting conditions, and the device enters a starting state from a preparation state before starting; after receiving a starting instruction, starting a magnetic suspension controller to drive a flywheel rotor to be in a complete suspension state, then starting a power electronic power converter, enabling the rotation speed of the flywheel rotor to reach a preset starting rotation speed, and entering a running state from the starting state; after a shutdown instruction is received, stopping charging and discharging operations, reducing the rotating speed of the flywheel rotor to zero, and entering a shutdown state from an operating state; and when the real-time detected rotating speed is zero, disconnecting a switch of the power electronic power converter connected with the outside, disconnecting a switch of the auxiliary alternating current input power supply, and entering a complete shutdown state from the shutdown state. The present case has promoted the automaticity, the controllability and the security of device.
Description
Technical Field
The invention relates to the technical field of flywheel energy storage, in particular to a starting and stopping control method and device of a flywheel energy storage device based on a magnetic suspension bearing.
Background
The flywheel energy storage device based on the magnetic suspension bearing is characterized in that the flywheel rotor is in a complete suspension state in the normal operation process, and therefore, the magnetic suspension bearing and the flywheel rotor are not physically abraded, so that compared with a traditional flywheel energy storage device based on a mechanical bearing, the flywheel energy storage device based on the magnetic suspension bearing can achieve higher rotating speed and even longer service life, and further the flywheel energy storage device based on the magnetic suspension bearing is more and more favored by the society.
However, only the conventional flywheel energy storage device based on the mechanical bearing of the comparison system is started and stopped by the start-stop control method, but the conventional flywheel energy storage device based on the mechanical bearing and the flywheel energy storage device based on the magnetic suspension bearing have different structures, and even have a certain difference in working principle.
Disclosure of Invention
The invention aims to provide a method and a device for controlling starting and stopping of a flywheel energy storage device based on a magnetic suspension bearing, and aims to overcome the technical defect that a method for controlling starting and stopping of a flywheel energy storage device based on a magnetic suspension bearing is not disclosed at present.
In order to solve the above problems, the present invention provides a start-stop control method for a flywheel energy storage device based on a magnetic suspension bearing, which includes:
detecting whether the hardware configuration and the electrical connection relation before power-on meet preset configuration conditions, acquiring running parameter information after power-on, judging whether the preset starting conditions are met according to the running parameter information, and entering a starting state from a preparation state before starting if the preset starting conditions are met;
after receiving a starting instruction, starting a magnetic suspension controller to control the output of exciting current to a magnetic suspension bearing so as to generate a magnetic field and drive a flywheel rotor to be in a complete suspension state under the action of the magnetic field, then starting a power electronic power converter to input power for charging so as to drive the flywheel rotor to rotate until the rotating speed reaches a preset starting rotating speed, and entering an operation state from the starting state;
after a stop instruction is received, stopping charging and discharging operations of the flywheel energy storage device, enabling the flywheel rotor to enter an inertia slow-descending mode, gradually reducing the rotating speed of the flywheel rotor until the rotating speed is zero, and entering a stop state from an operating state;
and when the rotating speed of the flywheel rotor detected in real time is zero, disconnecting the switch of the power electronic power converter connected with the outside, disconnecting the switch of the auxiliary alternating current power supply, and entering a complete shutdown state from the shutdown state.
As a further improvement of the invention, the operation state comprises a floating charge operation mode, a charging operation mode, a standby operation mode and a discharging operation mode;
wherein, the operation mode of floating charge is as follows: when the preset maximum rotating speed is reached, the flywheel energy storage device is continuously charged so as to maintain the flywheel rotor to rotate at the preset maximum rotating speed;
the charging operation mode is as follows: charging the flywheel energy storage device to increase the rotation speed of the flywheel rotor;
the standby operation mode is as follows: stopping charging or discharging the flywheel energy storage device so that the flywheel rotor rotates by means of inertia;
the discharge operation mode is as follows: and controlling the flywheel energy storage device to discharge, and converting kinetic energy of the flywheel rotor into electric energy so as to output the electric energy to an external load.
As a further improvement of the present invention, it further comprises:
acquiring running state information in real time, and judging whether a preset abnormal shutdown condition is met or not according to the running state information;
and if the preset abnormal shutdown condition is met, generating an abnormal shutdown instruction and executing the abnormal shutdown instruction.
As a further improvement of the present invention, it further comprises:
and monitoring whether a shutdown instruction is received in real time, wherein the shutdown instruction comprises a manual shutdown instruction generated through a human-computer interaction interface, or a local shutdown instruction generated by pressing a touch emergency stop button, or a remote shutdown instruction sent remotely.
In order to solve the above problems, the present invention further provides a start-stop control device for a flywheel energy storage device based on a magnetic suspension bearing, comprising:
the system comprises a pre-starting processing module, a pre-starting processing module and a starting processing module, wherein the pre-starting processing module is used for detecting whether the hardware configuration and the electrical connection relation before power-on meet preset configuration conditions, acquiring running parameter information after power-on, judging whether the preset starting conditions are met according to the running parameter information, and entering a starting state from a pre-starting preparation state if the preset starting conditions are met;
the starting processing module is used for starting the magnetic suspension controller firstly after receiving a starting instruction so as to control the output of exciting current to the magnetic suspension bearing to generate a magnetic field and drive the flywheel rotor to be in a complete suspension state under the action of the magnetic field, and then starting the power electronic power converter to input power for charging so as to drive the flywheel rotor to rotate until the rotating speed reaches a preset starting rotating speed, and entering an operation state from the starting state;
the shutdown processing module is used for stopping the charging and discharging operations of the flywheel energy storage device after receiving a shutdown instruction, enabling the flywheel rotor to enter an inertia slow-down mode, gradually reducing the rotating speed of the flywheel rotor until the rotating speed is zero, and entering a shutdown state from an operating state;
and the complete shutdown processing module is used for disconnecting the switch of the power electronic power converter connected with the outside and disconnecting the switch of the auxiliary alternating current power supply after the rotating speed of the flywheel rotor detected in real time is zero, and then entering a complete shutdown state from the shutdown state.
As a further improvement of the invention, the operation state comprises a floating charge operation mode, a charging operation mode, a standby operation mode and a discharging operation mode;
wherein, the operation mode of floating charge is as follows: when the preset maximum rotating speed is reached, the flywheel energy storage device is continuously charged so as to maintain the flywheel rotor to rotate at the preset maximum rotating speed;
the charging operation mode is as follows: charging the flywheel energy storage device to increase the rotation speed of the flywheel rotor;
the standby operation mode is as follows: stopping charging or discharging the flywheel energy storage device so that the flywheel rotor rotates by means of inertia;
the discharge operation mode is as follows: and controlling the flywheel energy storage device to discharge, and converting kinetic energy of the flywheel rotor into electric energy so as to output the electric energy to an external load.
As a further improvement of the present invention, it further comprises:
the state information acquisition and abnormity judgment module is used for acquiring running state information in real time and judging whether a preset abnormal shutdown condition is met or not according to the running state information;
and the exception handling module is used for generating an exception shutdown instruction and executing the exception shutdown instruction if the preset exception shutdown condition is met.
As a further improvement of the present invention, it further comprises:
and the shutdown instruction monitoring module is used for monitoring whether a shutdown instruction is received in real time, wherein the shutdown instruction comprises a manual shutdown instruction generated through a human-computer interaction interface, or a local shutdown instruction generated by pressing a touch emergency stop button, or a remote shutdown instruction sent remotely.
Compared with the prior art, the scheme is provided with a preparation state before starting, a starting state, an operating state, a stopping state and a complete stopping state, and switching conditions are set for switching among different states, so that the flywheel energy storage device can be automatically or manually switched from the current state to the next state under the condition of meeting the switching conditions, and the automation, controllability and safety of state switching are improved; in addition, in the scheme, when the hardware configuration and the electrical connection relation meet the preset configuration condition, and the preset starting condition is judged to be met according to the running parameter information after electrification, the flywheel energy storage device is allowed to enter the starting state from the preparation state before starting, so that the controllability and the safety of the flywheel energy storage device are further improved, in addition, in the starting stage, the flywheel rotor is controlled to be in the complete suspension state firstly, and then the flywheel rotor is controlled to rotate, so that the purpose of orderly starting is achieved, so that the starting safety of the flywheel energy storage device is improved, in addition, the stopping process comprises the stopping state and the complete stopping state, the stopping state is firstly entered, the charging and discharging operation is stopped, the rotating speed of the flywheel rotor is gradually reduced to zero, then the flywheel rotor enters the complete stopping state, the switch connected with the outside of the power electronic power converter is disconnected, the auxiliary alternating current input power, therefore, the shutdown safety of the flywheel energy storage device is improved.
Drawings
FIG. 1 is a schematic flow chart of an embodiment of a start-stop control method of a magnetic suspension bearing-based flywheel energy storage device according to the present invention;
FIG. 2 is a functional block diagram of a first embodiment of a start-stop control device of a magnetic suspension bearing-based flywheel energy storage device according to the present invention;
FIG. 3 is a functional block diagram of a second embodiment of a start-stop control device of a magnetic suspension bearing-based flywheel energy storage device according to the present invention;
fig. 4 is a functional module schematic diagram of a start-stop control device of a flywheel energy storage device based on a magnetic suspension bearing according to a third embodiment of the invention.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, wherein like reference numerals represent like elements in the drawings. It is apparent that the embodiments to be described below are only a part of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 shows an embodiment of a start-stop control method of a magnetic suspension bearing-based flywheel energy storage device according to the present invention. In this embodiment, as shown in fig. 1, the start-stop control method for a flywheel energy storage device based on a magnetic suspension bearing includes the following steps:
s1, detecting whether the hardware configuration and the electrical connection relation before the electrification meet the preset configuration condition, acquiring the operation parameter information after the electrification, judging whether the preset starting condition is met according to the operation parameter information, and if the preset starting condition is met, entering the starting state from the preparation state before the starting.
In this embodiment, detecting the hardware configuration before power-on includes, but is not limited to: carry out comprehensive inspection, examine the vacuum pump that flywheel energy memory joins in marriage to flywheel energy memory's outward appearance, specifically include: whether the oil level of the vacuum pump is normal or not, whether oil leaks or not and the like are checked, and whether the flywheel energy storage device adopts a correct fixing and mounting mode or not is detected.
Further, detecting the electrical connection relationship before power-on includes, but is not limited to: checking whether all electrical connections of the flywheel energy storage device are correct, specifically comprising: the charging and discharging circuit comprises a charging and discharging circuit wiring, an auxiliary alternating current input power supply wiring, a control wiring, an emergency stop wiring, a grounding and the like.
And after the detection of the flywheel energy storage device before power-on meets the preset configuration condition, closing the auxiliary alternating current input power switch to detect the flywheel energy storage device after power-on.
In this embodiment, the obtaining of the operation parameter information after power-on and the determining whether the preset starting condition is met according to the operation parameter information include, but are not limited to:
1. and acquiring display state information of the display screen, and checking whether the display content and the operation of the display screen are normal.
2. And starting a vacuum pump to perform vacuumizing operation, acquiring vacuum degree parameter information in the flywheel cavity, and judging whether a preset vacuum condition is met or not according to the vacuum degree parameter information.
3. And acquiring the operation information of the fan, and judging whether the preset normal operation condition is met or not according to the operation information.
4. And acquiring the state information of the cabinet door, and judging whether the cabinet door is in a closed state or not according to the state information.
And S2, after receiving the starting instruction, starting the magnetic suspension controller to control the output exciting current to the magnetic suspension bearing to generate a magnetic field and drive the flywheel rotor to be in a complete suspension state under the action of the magnetic field, then starting the power electronic power converter to input power for charging, driving the flywheel rotor to rotate until the rotating speed reaches a preset starting rotating speed, and entering an operation state from the starting state.
When the power electronic power converter is started to input power for charging, the permanent magnet motor is in the motor mode.
In this embodiment, when the hardware configuration and the electrical connection relation satisfy the preset configuration condition and the preset start condition is determined to be satisfied according to the operation parameter information after power-on, the hardware configuration and the electrical connection relation enter the start state from the preparation state before start, and the start operation processing is performed only when the start instruction is received in the start state, so that the start safety is improved.
In this embodiment, the manner of receiving the start instruction includes, but is not limited to: and acquiring a starting instruction generated by a user through a man-machine interaction interface, or receiving a remotely sent starting instruction.
Based on the embodiment, in other embodiments, the operation states include a float charge operation mode, a standby operation mode, and a discharge operation mode.
Wherein, the operation mode of floating charge is as follows: and when the preset maximum rotating speed is reached, continuously charging the flywheel energy storage device so as to maintain the flywheel rotor to rotate at the preset maximum rotating speed.
In this embodiment, in the float charging operation mode, the flywheel rotor keeps the preset maximum rotation speed, specifically: the electric energy of the external system is converted into the kinetic energy of the flywheel rotor to maintain the preset highest rotating speed of the flywheel rotor unchanged, but the rotating speed of the flywheel rotor cannot exceed the highest operating rotating speed, namely the preset highest rotating speed is less than or equal to the highest operating rotating speed. In this embodiment, the external system may be an ac system or a dc system.
The charging operation mode is as follows: the flywheel energy storage device is charged to increase the rotation speed of the flywheel rotor.
In the present embodiment, in the charging operation mode, the electric energy of the external system is converted into the kinetic energy of the flywheel rotor, and the rotation speed of the flywheel rotor is continuously increased, but the rotation speed of the flywheel rotor cannot exceed the maximum operation rotation speed, that is, the rotation speed of the flywheel rotor is less than or equal to the maximum operation rotation speed. In this embodiment, the external system may be an ac system or a dc system.
The standby operation mode is as follows: charging or discharging of the flywheel energy storage device is stopped so that the flywheel rotor rotates by inertia.
In this embodiment, in the standby operation mode, the charging or discharging of the flywheel energy storage device is stopped, the flywheel rotor rotates by inertia, and the rotation speed of the flywheel rotor is gradually reduced under the action of the resistance.
The discharge operation mode is as follows: and controlling the flywheel energy storage device to discharge, and converting kinetic energy of the flywheel rotor into electric energy so as to output the electric energy to an external load.
In this embodiment, in the discharging operation mode, the power electronic power converter is controlled to output power, and convert the kinetic energy of the flywheel rotor into electric energy, and the rotation speed of the flywheel rotor is gradually reduced to output the electric energy to the external load, wherein the rotation speed of the flywheel rotor cannot be reduced to be lower than the minimum discharging rotation speed, that is, the rotation speed of the flywheel rotor is greater than or equal to the minimum discharging rotation speed.
And S3, after receiving the stop instruction, stopping the charging and discharging operation of the flywheel energy storage device, enabling the flywheel rotor to enter an inertia slow-descending mode, gradually reducing the rotation speed of the flywheel rotor until the rotation speed is zero, and entering a stop state from a running state.
In this embodiment, the step of stopping the charging and discharging operations of the flywheel energy storage device specifically includes: the power input and output of the power electronic power converter is stopped so that the charging or discharging operation of the permanent magnet motor is stopped.
In the present embodiment, the operations performed in the shutdown state include, but are not limited to:
1. stopping charging and discharging operations of flywheel energy storage device
2. The flywheel rotor rotates by means of inertia, and under the action of resistance, the rotating speed of the flywheel rotor is gradually reduced until the rotating speed is reduced to zero
3. Before the rotating speed of the flywheel is reduced to zero, the magnetic suspension bearing needs to be maintained in a normal working state, so that the auxiliary alternating current input power supply cannot be disconnected.
Further, on the basis of this embodiment, in other embodiments, there are a plurality of ways of acquiring the shutdown instruction, and in order to describe the technical solution of the present invention in more detail, the following three acquisition ways are taken as examples and are exemplarily described.
1. Obtaining mode generated according to state detection result
Specifically, collecting running state information in real time, and judging whether a preset abnormal shutdown condition is met or not according to the running state information; and if the preset abnormal shutdown condition is met, generating an abnormal shutdown instruction and executing the abnormal shutdown instruction.
The running state information of the flywheel energy storage device is detected in real time, and when the running state information is judged to meet the preset abnormal shutdown condition, an abnormal shutdown instruction is automatically generated, so that shutdown protection operation is automatically executed, and the controllability and the safety of the flywheel energy storage device are further improved.
2. According to the acquisition mode generated by manual operation
Specifically, whether a shutdown instruction is received or not is monitored in real time, and the shutdown instruction comprises a manual shutdown instruction generated through a human-computer interaction interface or a local shutdown instruction generated by pressing a touch emergency stop button.
Specifically, a 'stop' button is displayed on the output of the display screen, and when a point touch operation that a user clicks the 'stop' button is acquired, a manual stop instruction is generated.
According to the embodiment, the shutdown operation can be carried out in real time according to the user requirements through the shutdown button, so that the user experience is improved.
In addition, an 'emergency stop' button is arranged on the flywheel energy storage device, and when a pressing signal that a user presses the 'emergency stop' button is acquired, a local stop instruction is generated.
The embodiment can realize the rapid stop operation of the flywheel energy storage device through the emergency stop button, and achieve the purpose of emergency stop, thereby further improving the safety of the flywheel energy storage device.
2. Receiving an acquisition mode sent by a local monitoring system or a remote monitoring system
Specifically, whether a shutdown instruction is received or not is monitored in real time, and the shutdown instruction comprises a shutdown instruction sent by a local monitoring system and/or a remote monitoring system.
In this embodiment, the flywheel energy storage device includes a communication module, and the communication module is connected to the local monitoring system and/or the remote monitoring system, so that the local monitoring system or the remote monitoring system can send the "shutdown instruction" through the communication network, and the flywheel energy storage device receives the "shutdown instruction" and executes the "shutdown instruction" to perform the shutdown operation.
In the embodiment, the problem that the flywheel energy storage device cannot be stopped immediately under the condition that no person is in the control field is solved by setting the control function of the local monitoring system and/or the remote monitoring system, so that the safety of the flywheel energy storage device is further improved.
And S4, when the rotation speed of the flywheel rotor detected in real time is zero, disconnecting the switch of the power electronic power converter and the switch of the external connection, disconnecting the switch of the auxiliary alternating current power supply, and entering a complete shutdown state from the shutdown state.
The device is provided with a preparation state before starting, a starting state, an operating state, a stopping state and a complete stopping state, and switching conditions are set for switching between different states, so that the flywheel energy storage device can be automatically or manually switched from the current state to the next state under the condition of meeting the switching conditions, and the automation, controllability and safety of state switching are improved; in addition, when the hardware configuration and the electrical connection relation meet the preset configuration condition and the preset starting condition is judged to be met according to the operation parameter information after the electrification, the flywheel energy storage device is allowed to enter the starting state from the preparation state before starting, so that the controllability and the safety of the flywheel energy storage device are further improved, and in addition, in the starting stage, the flywheel rotor is controlled to be in a complete suspension state firstly, and then the flywheel rotor is controlled to rotate, so that the purpose of orderly starting is achieved, therefore, the starting safety of the flywheel energy storage device is improved, in addition, the shutdown process comprises a shutdown state and a complete shutdown state, the shutdown state is firstly entered, after the rotating speed of the flywheel is zero, and then the flywheel energy storage device enters a complete shutdown state, the switch connected with the outside of the power electronic power converter is disconnected, and the auxiliary alternating current input power switch is disconnected, so that the purpose of orderly shutdown is achieved, and the shutdown safety of the flywheel energy storage device is improved.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Fig. 2 shows an embodiment of the start-stop control device of the flywheel energy storage device based on the magnetic suspension bearing. In the embodiment, as shown in fig. 2, the start-stop control device of the magnetic suspension bearing based flywheel energy storage device includes a start-up processing module 10, a start-up processing module 11, a stop processing module 12, and a complete stop processing module 13.
The system comprises a pre-starting processing module 10, a pre-starting processing module and a starting processing module, wherein the pre-starting processing module is used for detecting whether hardware configuration and electrical connection relation before power-on meet preset configuration conditions, acquiring running parameter information after power-on, judging whether the preset starting conditions are met according to the running parameter information, and entering a starting state from a pre-starting preparation state if the preset starting conditions are met; the starting processing module 11 is configured to, after receiving a starting instruction, start the magnetic suspension controller to control output of an excitation current to the magnetic suspension bearing to generate a magnetic field and drive the flywheel rotor to be in a completely suspended state under the action of the magnetic field, then start the power electronic power converter to input power for charging to drive the flywheel rotor to rotate until the rotation speed reaches a preset starting rotation speed, and enter an operating state from the starting state; the shutdown processing module 12 is configured to stop charging and discharging operations on the flywheel energy storage device after receiving a shutdown instruction, enter an inertia slow-decreasing mode for the flywheel rotor, gradually decrease the rotation speed of the flywheel rotor until the rotation speed is zero, and enter a shutdown state from an operating state; and the complete shutdown processing module 13 is configured to disconnect the switch of the power electronic power converter and the external connection, disconnect the switch of the auxiliary ac power supply, and enter a complete shutdown state from a shutdown state when the flywheel rotor rotation speed detected in real time is zero.
On the basis of the embodiment, in other embodiments, the operation state includes a float charge operation mode, a standby operation mode and a discharge operation mode;
wherein, the operation mode of floating charge is as follows: when the preset maximum rotating speed is reached, the flywheel energy storage device is continuously charged so as to maintain the flywheel rotor to rotate at the preset maximum rotating speed;
the charging operation mode is as follows: charging the flywheel energy storage device to increase the rotation speed of the flywheel rotor;
the standby operation mode is as follows: stopping charging or discharging the flywheel energy storage device so that the flywheel rotor rotates by means of inertia;
the discharge operation mode is as follows: and controlling the flywheel energy storage device to discharge, and converting kinetic energy of the flywheel rotor into electric energy so as to output the electric energy to an external load.
On the basis of the present embodiment, in other embodiments, referring to fig. 3, the start-stop control device of the magnetic suspension bearing based flywheel energy storage device further includes a state information acquisition and abnormality judgment module 40 and an abnormality processing module 41.
The state information acquisition and abnormity judgment module 40 is used for acquiring running state information in real time and judging whether a preset abnormal shutdown condition is met or not according to the running state information; and the exception handling module 41 is configured to generate an exception stop instruction and execute the exception stop instruction if a preset exception stop condition is met.
On the basis of the present embodiment, in other embodiments, referring to fig. 4, the start-stop control device of the magnetic suspension bearing based flywheel energy storage device further includes a shutdown instruction monitoring module 50.
The shutdown instruction monitoring module 50 is configured to monitor whether a shutdown instruction is received in real time, where the shutdown instruction includes a manual shutdown instruction generated through a human-computer interaction interface, or a local shutdown instruction generated by pressing a touch emergency stop button, or a shutdown instruction sent by a local monitoring system and/or a remote monitoring system.
It is clearly understood by those skilled in the art that, for convenience and simplicity of description, the foregoing functional units and modules are merely illustrated in terms of division, and in practical applications, the above functions may be distributed by different functional units and modules as needed, that is, the internal structure of the start-stop control device of the flywheel energy storage device based on the magnetic suspension bearing is divided into different functional units or modules to complete all or part of the above described functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the above-mentioned apparatus may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the start-stop control device and the start-stop control method of the disclosed flywheel energy storage device based on a magnetic suspension bearing may be implemented in other ways. For example, the above-described embodiments of the start-stop control device for a magnetic suspension bearing based flywheel energy storage device are merely illustrative, for example, the division of modules or units is only a logical division, and in actual implementation, there may be another division, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present application 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 integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above detailed description of the embodiments of the present invention is provided as an example, and the present invention is not limited to the above described embodiments. It will be apparent to those skilled in the art that any equivalent modifications or substitutions can be made within the scope of the present invention, and thus, equivalent changes and modifications, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the scope of the present invention.
Claims (8)
1. A starting and stopping control method of a flywheel energy storage device based on a magnetic suspension bearing is characterized by comprising the following steps:
detecting whether the hardware configuration and the electrical connection relation before power-on meet preset configuration conditions, acquiring running parameter information after power-on, judging whether the running parameter information meets preset starting conditions or not according to the running parameter information, and entering a starting state from a preparation state before starting if the running parameter information and the running parameter information meet the preset starting conditions;
after receiving a starting instruction, starting a magnetic suspension controller to control the output of exciting current to a magnetic suspension bearing so as to generate a magnetic field and drive a flywheel rotor to be in a complete suspension state under the action of the magnetic field, then starting a power electronic power converter to input power for charging so as to drive the flywheel rotor to rotate until the rotating speed reaches a preset starting rotating speed, and entering an operation state from the starting state;
after a shutdown instruction is received, stopping charging and discharging operations of the flywheel energy storage device, enabling the flywheel rotor to enter an inertia slow-descending mode, gradually reducing the rotating speed of the flywheel rotor until the rotating speed is zero, and entering a shutdown state from the running state;
and when the rotating speed of the flywheel rotor detected in real time is zero, disconnecting the switch of the power electronic power converter connected with the outside, disconnecting the switch of the auxiliary alternating current power supply, and entering a complete shutdown state from the shutdown state.
2. The start-stop control method of the flywheel energy storage device based on the magnetic suspension bearing as claimed in claim 1, wherein the operation state comprises a floating charge operation mode, a standby operation mode and a discharge operation mode;
wherein, the floating charge operation mode is as follows: when the preset maximum rotating speed is reached, continuously charging the flywheel energy storage device so as to maintain the flywheel rotor to rotate at the preset maximum rotating speed;
the charging operation mode is as follows: charging a flywheel energy storage device to increase the rotation speed of a flywheel rotor;
the standby operation mode is as follows: stopping charging or discharging the flywheel energy storage device so that the flywheel rotor rotates by means of inertia;
the discharge operation mode is as follows: and controlling a flywheel energy storage device to discharge, and converting kinetic energy of the flywheel rotor into electric energy so as to output the electric energy to an external load.
3. The start-stop control method for the flywheel energy storage device based on the magnetic suspension bearing is characterized by further comprising the following steps of:
acquiring running state information in real time, and judging whether a preset abnormal shutdown condition is met or not according to the running state information;
and if the preset abnormal shutdown condition is met, generating an abnormal shutdown instruction and executing the abnormal shutdown instruction.
4. The start-stop control method for the flywheel energy storage device based on the magnetic suspension bearing is characterized by further comprising the following steps of:
and monitoring whether a shutdown instruction is received in real time, wherein the shutdown instruction comprises a manual shutdown instruction generated through a human-computer interaction interface, or a local shutdown instruction generated by pressing a touch emergency stop button, or a remote shutdown instruction sent remotely.
5. The utility model provides a flywheel energy memory's start-stop control device based on magnetic suspension bearing which characterized in that, it includes:
the system comprises a pre-starting processing module, a pre-starting processing module and a starting processing module, wherein the pre-starting processing module is used for detecting whether the hardware configuration and the electrical connection relation before power-on meet preset configuration conditions, acquiring running parameter information after power-on, judging whether the preset starting conditions are met according to the running parameter information, and entering a starting state from a pre-starting preparation state if the running parameter information and the running parameter information meet the preset starting conditions;
the starting processing module is used for starting the magnetic suspension controller firstly after receiving a starting instruction so as to control the output of exciting current to the magnetic suspension bearing to generate a magnetic field and drive the flywheel rotor to be in a complete suspension state under the action of the magnetic field, then starting the power electronic power converter to input power for charging so as to drive the flywheel rotor to rotate until the rotating speed reaches a preset starting rotating speed, and entering an operation state from the starting state;
the shutdown processing module is used for stopping charging and discharging operations of the flywheel energy storage device after receiving a shutdown instruction, enabling the flywheel rotor to enter an inertia slow-descending mode, gradually reducing the rotating speed of the flywheel rotor until the rotating speed is zero, and entering a shutdown state from the running state;
and the complete shutdown processing module is used for disconnecting the switch of the power electronic power converter connected with the outside and disconnecting the switch of the auxiliary alternating current power supply after the rotation speed of the flywheel rotor detected in real time is zero, and then entering a complete shutdown state from the shutdown state.
6. The start-stop control device of the flywheel energy storage device based on the magnetic suspension bearing is characterized in that the operation states comprise a floating charge operation mode, a standby operation mode and a discharge operation mode;
wherein, the floating charge operation mode is as follows: when the preset maximum rotating speed is reached, continuously charging the flywheel energy storage device so as to maintain the flywheel rotor to rotate at the preset maximum rotating speed;
the charging operation mode is as follows: charging a flywheel energy storage device to increase the rotation speed of a flywheel rotor;
the standby operation mode is as follows: stopping charging or discharging the flywheel energy storage device so that the flywheel rotor rotates by means of inertia;
the discharge operation mode is as follows: and controlling a flywheel energy storage device to discharge, and converting kinetic energy of the flywheel rotor into electric energy so as to output the electric energy to an external load.
7. The start-stop control device of the flywheel energy storage device based on the magnetic suspension bearing is characterized by further comprising:
the state information acquisition and abnormity judgment module is used for acquiring running state information in real time and judging whether a preset abnormal shutdown condition is met or not according to the running state information;
and the exception handling module is used for generating an exception shutdown instruction and executing the exception shutdown instruction if a preset exception shutdown condition is met.
8. The start-stop control device of the flywheel energy storage device based on the magnetic suspension bearing is characterized by further comprising:
and the shutdown instruction monitoring module is used for monitoring whether a shutdown instruction is received in real time, wherein the shutdown instruction comprises a manual shutdown instruction generated through a human-computer interaction interface, or a local shutdown instruction generated by pressing an emergency shutdown button, or a remote shutdown instruction sent remotely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910236772.8A CN110034630B (en) | 2019-03-27 | 2019-03-27 | Starting and stopping control method and device of flywheel energy storage device based on magnetic suspension bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910236772.8A CN110034630B (en) | 2019-03-27 | 2019-03-27 | Starting and stopping control method and device of flywheel energy storage device based on magnetic suspension bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110034630A CN110034630A (en) | 2019-07-19 |
| CN110034630B true CN110034630B (en) | 2020-02-21 |
Family
ID=67236736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910236772.8A Active CN110034630B (en) | 2019-03-27 | 2019-03-27 | Starting and stopping control method and device of flywheel energy storage device based on magnetic suspension bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110034630B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345158B (en) * | 2019-07-22 | 2020-08-11 | 珠海格力电器股份有限公司 | Bearing control method and device, storage medium and processor |
| CN112271961A (en) * | 2020-10-15 | 2021-01-26 | 珠海格力电器股份有限公司 | Motor starting system and method and electric equipment with motor |
| CN114326538A (en) * | 2022-01-10 | 2022-04-12 | 北京泓慧国际能源技术发展有限公司 | Magnetic suspension flywheel control system and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002257136A (en) * | 2001-02-27 | 2002-09-11 | Koyo Seiko Co Ltd | Magnetic bearing |
| CN102709929B (en) * | 2012-06-20 | 2014-07-02 | 陕西煤业化工技术研究院有限责任公司 | Wind power generation electric energy management based on flywheel energy storage, and storage device and method based on flywheel energy storage |
| CN105974790B (en) * | 2016-05-26 | 2018-12-21 | 北京控制工程研究所 | A kind of magnetic suspension micro-vibration control system based on flux density feedback |
| CN106655605B (en) * | 2016-12-29 | 2019-04-02 | 江苏大学 | Sandwich magnetic suspending flying wheel battery for electric vehicle and working method |
-
2019
- 2019-03-27 CN CN201910236772.8A patent/CN110034630B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110034630A (en) | 2019-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110034630B (en) | Starting and stopping control method and device of flywheel energy storage device based on magnetic suspension bearing | |
| CN110107490B (en) | Integrated frequency conversion fracturing pumping equipment control system and control method | |
| CN103618484B (en) | The integral control system of magnetic suspension high speed motor and control method thereof | |
| US20080074812A1 (en) | DC common bus self-protection method and system | |
| CN105891652A (en) | Method and apparatus for detecting alternator rectifier diode short fault | |
| CN105689160B (en) | A kind of closing method and device for magnetic suspension centrifuge | |
| CN102280862A (en) | Frequency converter input/output reverse connection detection protection method and device | |
| CN108613324A (en) | Motor load mated condition detecting system, method and air conditioner | |
| CN108233811A (en) | Control method and control system without sensor type permanent magnet synchronous motor | |
| CN104965183B (en) | The demagnetization detection method and device of permanent-magnet brushless DC electric machine | |
| CN102709998A (en) | Multifunctional charger | |
| CN202433505U (en) | Automatic detection system of airplane start generator | |
| CN103939321A (en) | Control method and device for air conditioner compressor starting | |
| EP3879664A1 (en) | Photovoltaic electric appliance system and voltage protection value control method and apparatus thereof | |
| CN216285516U (en) | Flywheel energy storage product test experiment platform | |
| CN107733175B (en) | Motor operating system and method thereof | |
| CN106787961B (en) | The method that high-voltage frequency converter instantaneous power-off is restarted | |
| CN111381131A (en) | Method, apparatus and computer storage medium for detecting insulation fault | |
| US10547254B2 (en) | Apparatus for controlling multiple inverters and inverter system including the same | |
| JP7449950B2 (en) | Power conversion device and predictive diagnosis method used therefor | |
| CN112018872B (en) | UPS control method and UPS | |
| Mamatha et al. | Induction Motor Condition Monitoring and Controlling Based on IoT | |
| CN103390926B (en) | The power system of electronic installation | |
| CN110311618A (en) | Electric machine control system | |
| US11863341B2 (en) | Integrated control panel for household appliance and control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |