CN209823433U - Brake energy regeneration system of port crane applying flywheel battery and chemical battery energy storage - Google Patents
Brake energy regeneration system of port crane applying flywheel battery and chemical battery energy storage Download PDFInfo
- Publication number
- CN209823433U CN209823433U CN201920844627.3U CN201920844627U CN209823433U CN 209823433 U CN209823433 U CN 209823433U CN 201920844627 U CN201920844627 U CN 201920844627U CN 209823433 U CN209823433 U CN 209823433U
- Authority
- CN
- China
- Prior art keywords
- battery
- flywheel
- control unit
- crane
- chemical
- 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
Classifications
-
- 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
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a harbour crane braking energy regeneration system is applied to in flywheel battery and chemical battery energy storage, and this system is applied to harbour crane braking energy regeneration occasion. The method comprises the following steps: the crane comprises a crane frequency converter direct-current bus, a flywheel battery control unit for storing electric energy, a chemical battery control unit for storing electric energy and a main control system for monitoring the working state of the crane and controlling the flywheel battery control unit and the chemical battery control unit; the direct current bus of the crane frequency converter transmits a control signal to the main control system; the system realizes energy storage and frequency modulation through intelligent control of the control system on the flywheel battery control unit and the chemical battery control unit, and stores electric energy generated by braking for electric energy supplement in the hoisting process, so as to realize the reversible energy conversion process.
Description
Technical Field
The utility model relates to a braking energy regeneration technical field especially relates to flywheel battery and chemical battery energy storage are applied to harbour crane braking energy regeneration system.
Background
In recent years, with the development of the national maritime industry, the completeness and energy conservation of port construction become increasingly important. The port crane is used as high-energy-consumption equipment in a transportation link, and the exploration of the energy-saving technology of the port crane has a great promotion effect on the control of port loading and unloading energy consumption.
Common energy-saving measures of the existing port crane include frequency conversion transformation, application of a high-efficiency motor, lifting height limitation, braking energy storage by using a battery and a super capacitor, feedback of APE electric energy to a power grid and the like, wherein the first three energy-saving effects in the method are usually less than 10%, and most ports are already applied; and the last 2 types have the problems of service life and energy flow direction and cannot be widely popularized. The prior art can not realize the energy-saving equipment of the crane which has the advantages of reliability, service life, environmental protection and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a crane energy-saving device with the advantages of reliability, service life, environmental protection and the like which can not be realized by the measures of frequency conversion transformation, application of a high-efficiency motor, limitation of lifting height, storage of braking energy by using a battery and a super capacitor and feedback of APE electric energy to a power grid, which can not realize coexistence of the advantages of reliability, service life, environmental protection and the like, the utility model discloses application of flywheel batteries and chemical battery energy storage to a port crane braking energy regeneration system, a crane frequency converter direct current bus, a flywheel battery control unit, a chemical battery control unit and;
one end of the main control system is connected with the direct current bus of the crane frequency converter;
the other end of the main control system is connected with one end of the flywheel battery control unit and one end of the chemical battery control unit;
the other end of the flywheel battery control unit and the other end of the chemical battery control unit are connected with a direct-current bus of the crane frequency converter;
the flywheel battery control unit comprises a controller c, an AC filter, an AC/DC/AC bidirectional converter a and a flywheel battery, wherein one end of the AC filter is connected with a direct-current bus of the crane frequency converter through three-phase alternating current, the other end of the AC filter is connected with one end of the AC/DC/AC bidirectional converter a, the other end of the AC/DC/AC bidirectional converter a is connected with the flywheel battery, and the AC/DC/AC bidirectional converter a and the flywheel battery are connected through the controller c;
the flywheel battery comprises a motor spindle, a battery shell, a motor stator, a motor rotor, an energy storage flywheel, a magnetic suspension bearing, a magnetic stator and a vacuum pump. The motor stator is connected with an AC/DC/AC bidirectional converter a through three-phase alternating current, and the flywheel battery is connected with a controller c through a rotating speed feedback device at a main shaft end of the motor;
the chemical battery control unit comprises a controller d, an AC/DC/AC bidirectional converter b and a chemical battery, wherein one end of the AC/DC/AC bidirectional converter b is connected with a direct-current bus of a crane frequency converter through three-phase alternating current, the other end of the AC/DC/AC bidirectional converter b is connected with the chemical battery, and the controller d is connected with the AC/DC/AC bidirectional converter b and the chemical battery;
and the main control system is connected with the controller c and the controller d through a control circuit.
Further: the flywheel battery also comprises a battery shell, a motor rotor, an energy storage flywheel, a magnetic suspension bearing, a magnetic stator and a vacuum pump, wherein the motor spindle is connected with the motor rotor, the energy storage flywheel and the magnetic suspension bearing, the magnetic stator is fixed on the inner wall of the battery shell, and the vacuum pump is connected with the battery shell.
Further: the flywheel battery comprises a high-voltage flywheel battery, and the voltage range of the high-voltage flywheel battery is 220-10 KV.
Further: the chemical battery comprises a lithium iron phosphate battery pack, a ternary lithium battery pack and a nickel-hydrogen battery pack.
Since the technical scheme is used, the utility model provides a flywheel battery and chemical battery energy storage are applied to harbour loop wheel machine braking energy regeneration system, application flywheel battery energy storage technique, store some unnecessary electric energy in the flywheel battery, replenish the electric energy on hoist converter direct current bus when loop wheel machine demand electric energy again, thereby recycle the recovery of braking energy, play the frequency modulation effect, utilize chemical battery's the characteristics that energy density is big simultaneously to store more electric energy as the energy replenishment of lifting by crane the process, this system compromises the reliability, and the service life, advantages such as environmental protection, the reversible deposit of electric energy has been realized, the utilization ratio of braking energy has been improved, the energy has been practiced thrift, and application control system makes the intelligent control of whole process realization online, not only the maintenance cost has been practiced thrift, more the control accuracy has been improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a system disclosed in the present invention;
FIG. 2 is a schematic structural diagram of a flywheel battery control unit according to the present invention;
FIG. 3 is a schematic structural diagram of a chemical battery control unit according to the present invention;
fig. 4 is a schematic structural diagram of the flywheel battery of the present invention.
In the figure: 3. the system comprises a main control system 10, controllers c and 11, AC filters 12, AC/DC/AC bidirectional converters a and 13, a flywheel battery 14, a crane frequency converter direct current bus 15, controllers d and 16, an AC/DC/AC bidirectional converter 17, a chemical battery 20, a flywheel battery control unit 21, a chemical battery control unit 30, a motor spindle 31, a battery shell 32, a motor stator 33, a motor rotor 34, an energy storage flywheel 35, a magnetic suspension bearing 36, a magnetic stator 37 and a vacuum pump.
Detailed Description
For making the technical solution and the advantages of the present invention clearer, the following combines the drawings in the embodiments of the present invention, to the technical solution in the embodiments of the present invention is clear and complete description:
the flywheel battery and chemical battery energy storage shown in fig. 1 are applied to a port crane braking energy regeneration system, and specifically the system comprises a flywheel battery control unit 20, a chemical battery control unit 21, a heavy machine frequency converter direct current bus 14, and a main control system 3 for monitoring the working state of the crane and controlling the flywheel battery control unit 20 and the chemical battery control unit;
the crane frequency converter direct current bus 14 transmits a control signal to the main control system 3, and the main control system 3 transmits a signal received by the crane frequency converter direct current bus 14 to the flywheel battery control unit 20 and the chemical battery control unit 21. The heavy machine frequency converter direct current bus 14 feeds back stored energy and frequency modulation instructions to the main control system 3, and the main control system 3 controls the charging and discharging of the flywheel battery control unit 20 and the chemical battery control unit 21 respectively.
Fig. 2 is the utility model discloses flywheel battery control unit's structural schematic, flywheel battery control unit 20 includes controller c10, AC wave filter 11, AC/DC/AC bidirectional converter a12 and flywheel battery 13, controller c10 control AC/DC/AC bidirectional converter a12, and it changes into the unipolar electricity by three-phase electricity transformation to make the electric energy pass through AC wave filter 11 after filtering the clutter and turns into the three-phase electricity that is the same with flywheel battery 13 feedback to controller c10 frequency again through AC/DC/AC bidirectional converter a12 realization, gets up the electric energy storage, and this process is reversible process, can realize at any time quick charge-discharge. The method is characterized by comprising the steps of quick charge and discharge, reversible energy source change, realization of charge and discharge through a control system, adjustment according to the lifting change of the crane at any time, and the aims of brake energy storage and frequency modulation are fulfilled.
Fig. 3 is a schematic structural diagram of the chemical battery control unit of the present invention, the chemical battery control unit 21 includes a controller d15, an AC/DC/AC bidirectional converter b16 and a chemical battery 17, the controller d15 controls the AC/DC/AC bidirectional converter b16 to store electric energy, the process is a reversible process to store electric energy according to the change of crane lifting and lowering, so as to store large energy, one end of the AC/DC/AC bidirectional converter b16 is connected to the crane inverter DC bus 14 through three-phase AC power, the other end of the AC/DC/AC bidirectional converter b16 is connected to the chemical battery 17, and the controller d15 is connected to the AC/DC/AC bidirectional converter b16 and the chemical battery 17.
Fig. 4 is a schematic structural diagram of the flywheel battery of the present invention, the flywheel battery 13 includes a motor spindle 30, a battery housing 31, a motor stator 32, a motor rotor 33, an energy storage flywheel 34, a magnetic suspension bearing 35, a magnetic stator 36 and a vacuum pump 37. The motor stator 32 is connected with an AC/DC/AC bidirectional converter a12 through three-phase alternating current, the flywheel battery 13 is connected with a controller c10 through a rotational speed feedback device at the end of the motor main shaft 30, the motor main shaft 30 is connected with the motor rotor 33, the energy storage flywheel 34 and the magnetic suspension bearing 35, the magnetic stator 36 is fixed on the inner wall of the battery shell 31, and the vacuum pump 37 is connected with the battery shell 31.
Further, the flywheel battery 13 comprises a high-voltage flywheel battery, and the voltage range of the high-voltage flywheel battery is 220V-10 KV;
further, the chemical batteries 17 include a lithium iron phosphate battery pack, a ternary lithium battery pack, and a nickel metal hydride battery pack.
The working state of the system is as follows: when the hoisting motor is loaded and rises, the main control system 3 controls the flywheel battery control unit 20 and the chemical battery control unit 21 to release electric energy, and the voltage of the direct current bus 14 of the frequency converter of the crane rises; when the hoisting motor is braked, the main control system 3 controls the flywheel battery control unit 20 and the chemical battery control unit 21 to absorb electric energy, and the voltage of the direct current bus 14 of the frequency converter of the crane is reduced, so that the recycling process of the braking energy of the crane is realized;
furthermore, the main control system 3 receives a crane lifting and frequency modulation instruction, stores the electric energy generated by braking through regulating and controlling the flywheel battery control unit 20 and the chemical battery control unit 21, releases the electric energy during the crane lifting process to achieve the purpose of recycling the braking energy, simultaneously realizes the frequency modulation function through rapid charging and discharging of the flywheel battery 13, and stores more electric energy by utilizing the characteristic of large energy density of the chemical battery 17 to improve the braking energy utilization rate. Through the technical scheme the utility model discloses a system realizes intelligent control with flywheel battery unit, has realized that the energy that the loop wheel machine goes up and down deposits and the frequency modulation function, is showing and promotes loop wheel machine braking energy utilization ratio to the energy has been practiced thrift, has realized good economic benefits.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. Flywheel battery and chemical battery energy storage are applied to harbour crane braking energy regeneration system, its characterized in that includes: the crane comprises a crane frequency converter direct current bus (14), a flywheel battery control unit (20), a chemical battery control unit (21) and a main control system (3);
one end of the main control system (3) is connected with the direct current bus (14) of the crane frequency converter;
the other end of the main control system (3) is connected with one end of the flywheel battery control unit (20) and one end of the chemical battery control unit (21);
the other end of the flywheel battery control unit (20) and the other end of the chemical battery control unit (21) are connected with the direct-current bus (14) of the crane frequency converter;
the flywheel battery control unit (20) comprises a controller c (10), an AC filter (11), an AC/DC/AC bidirectional converter a (12) and a flywheel battery (13), wherein one end of the AC filter (11) is connected with a direct-current bus (14) of the crane frequency converter through three-phase alternating current, the other end of the AC filter (11) is connected with one end of the AC/DC/AC bidirectional converter a (12), the other end of the AC/DC/AC bidirectional converter a (12) is connected with the flywheel battery (13), and the AC/DC/AC bidirectional converter a (12) and the flywheel battery (13) are connected through the controller c (10);
the flywheel battery (13) comprises a motor spindle (30), a battery shell (31), a motor stator (32), a motor rotor (33), an energy storage flywheel (34), a magnetic suspension bearing (35), a magnetic stator (36) and a vacuum pump (37), the motor stator (32) is connected with an AC/DC/AC bidirectional converter a (12) through three-phase alternating current, and a rotating speed feedback device at the end of the motor spindle (30) of the flywheel battery (13) is connected with a controller c (10);
the chemical battery control unit (21) comprises a controller d (15), an AC/DC/AC bidirectional converter b (16) and a chemical battery (17), one end of the AC/DC/AC bidirectional converter b (16) is connected with a crane inverter direct-current bus (14) through three-phase alternating current, the other end of the AC/DC/AC bidirectional converter b (16) is connected with the chemical battery (17), and the controller d (15) is connected with the AC/DC/AC bidirectional converter b (16) and the chemical battery (17);
the main control system (3) is connected with the controller c (10) and the controller d (15) through a control circuit.
2. The flywheel battery and chemical battery energy storage as claimed in claim 1 applied to a harbour crane braking energy regeneration system, further characterized in that: the flywheel battery (13) further comprises a battery shell (31), a motor rotor (33), an energy storage flywheel (34), a magnetic suspension bearing (35), a magnetic stator (36) and a vacuum pump (37), the motor spindle (30) is connected with the motor rotor (33), the energy storage flywheel (34) and the magnetic suspension bearing (35), the magnetic stator (36) is fixed on the inner wall of the battery shell (31), and the vacuum pump (37) is connected with the battery shell (31).
3. The flywheel battery and chemical battery energy storage as claimed in claim 1 applied to a harbour crane braking energy regeneration system, further characterized in that: the flywheel battery (13) comprises a high-voltage flywheel battery, and the voltage range of the high-voltage flywheel battery is 220-10 KV.
4. The flywheel battery and chemical battery energy storage as claimed in claim 1 applied to a harbour crane braking energy regeneration system, further characterized in that: the chemical battery (17) comprises a lithium iron phosphate battery pack, a ternary lithium battery pack and a nickel-metal hydride battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920844627.3U CN209823433U (en) | 2019-06-05 | 2019-06-05 | Brake energy regeneration system of port crane applying flywheel battery and chemical battery energy storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920844627.3U CN209823433U (en) | 2019-06-05 | 2019-06-05 | Brake energy regeneration system of port crane applying flywheel battery and chemical battery energy storage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209823433U true CN209823433U (en) | 2019-12-20 |
Family
ID=68884211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920844627.3U Active CN209823433U (en) | 2019-06-05 | 2019-06-05 | Brake energy regeneration system of port crane applying flywheel battery and chemical battery energy storage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209823433U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098629A (en) * | 2019-06-05 | 2019-08-06 | 大连亨利科技有限公司 | Flying wheel battery and chemical cell stored energy application are in harbor crane brake energy regeneration system |
| CN115001132A (en) * | 2022-07-21 | 2022-09-02 | 杭州未名信科科技有限公司 | Tower crane power supply circuit and power supply control method |
-
2019
- 2019-06-05 CN CN201920844627.3U patent/CN209823433U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098629A (en) * | 2019-06-05 | 2019-08-06 | 大连亨利科技有限公司 | Flying wheel battery and chemical cell stored energy application are in harbor crane brake energy regeneration system |
| CN115001132A (en) * | 2022-07-21 | 2022-09-02 | 杭州未名信科科技有限公司 | Tower crane power supply circuit and power supply control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9056752B2 (en) | Crane, in particular mobile port crane, comprising a hybrid drive system | |
| CN201786566U (en) | Off-grid perpendicular shaft wind-driven generator control system with continuous power supply | |
| CN209823433U (en) | Brake energy regeneration system of port crane applying flywheel battery and chemical battery energy storage | |
| CN102013754A (en) | Energy-saving elevator power distribution system | |
| CN201647835U (en) | Hybrid power RTG electrical system | |
| CN203491707U (en) | Energy storage system based on cascade utilization of power battery | |
| CN101717044A (en) | Hybrid power tyre crane energy-saving system | |
| CN105262127A (en) | Self-adaptive power control method of photovoltaic power generation hybrid energy storage system | |
| CN111404199A (en) | Micro-grid hybrid energy storage system based on flywheel energy storage and control method | |
| CN104467093A (en) | Hybrid power battery pack, electrical control system thereof, crane and system working method | |
| CN108306321B (en) | Energy storage system | |
| CN209873925U (en) | Mobile power supply electric hydraulic excavator | |
| CN107554306A (en) | Energy regenerating electric braking device and system | |
| CN202004500U (en) | Auxiliary power supply for crane | |
| CN113859036A (en) | Intelligent energy battery replacing system and battery replacing method | |
| CN103208851A (en) | Vertical-axis wind power converter device | |
| CN110098629A (en) | Flying wheel battery and chemical cell stored energy application are in harbor crane brake energy regeneration system | |
| CN211655822U (en) | Flywheel energy storage dilatation system under charging station constant power condition | |
| CN107032239A (en) | Crane energy conserving system | |
| CN205472296U (en) | Harbor hoisting machinery energy-saving system using diesel generator set as power source | |
| CN116995796A (en) | Peak Gu Tao benefit control method for high-voltage energy-storage frequency converter | |
| CN201893647U (en) | Energy-saving power distribution system for elevator | |
| CN216588972U (en) | Electric energy management system based on energy recovery | |
| CN209823435U (en) | High-voltage flywheel combined chemical battery energy storage system applied to power grid peak regulation and frequency modulation | |
| CN204578105U (en) | A kind of energy feedback system based on port crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |