CN211568269U - Pure electric ship power assembly system based on three-electric system - Google Patents
Pure electric ship power assembly system based on three-electric system Download PDFInfo
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- CN211568269U CN211568269U CN201922298030.6U CN201922298030U CN211568269U CN 211568269 U CN211568269 U CN 211568269U CN 201922298030 U CN201922298030 U CN 201922298030U CN 211568269 U CN211568269 U CN 211568269U
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- 239000000446 fuel Substances 0.000 claims abstract description 49
- 239000003990 capacitor Substances 0.000 claims abstract description 39
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 34
- 238000012546 transfer Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 22
- 229910052739 hydrogen Inorganic materials 0.000 description 22
- 239000001257 hydrogen Substances 0.000 description 22
- 238000007726 management method Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 14
- 238000004891 communication Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model relates to a pure electric ship power assembly system based on three electric systems, including main control unit, power lithium cell group, super capacitor group and electric drive, main control unit pass through the network with electric drive links to each other, still includes the fuel cell stack, the fuel cell stack disposes fuel cell management system, fuel cell management system passes through the network and links to each other with the master controller, main control unit pass through power switching device respectively with power lithium cell group, super capacitor group, fuel cell stack and electric drive link to each other for it is right to control power switching device to realize the switching of power lithium cell group, super capacitor group and fuel cell stack with to electric drive supplies power, and it is right to realize energy transfer between power lithium cell group, super capacitor group and the fuel cell stack. The utility model discloses can satisfy the electric quantity demand that pure electric ship navigated by water under the different conditions.
Description
Technical Field
The utility model relates to a boats and ships driving system especially relates to a pure electric ship power assembly system based on three electric systems.
Background
In the research process of a pure electric ship power assembly system, a large number of power lithium batteries (the order of magnitude of MWh) must be configured for obtaining a long endurance mileage after the power characteristics are solved in some large-scale ship applications so as to meet the requirement of the endurance mileage, and a long charging time is inevitably required due to the increase of the capacity of the batteries, so that the actual operation requirement of the pure electric ship power assembly system cannot be met in specific applications.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a electricelectric moves ship power assembly system based on three electric systems is provided, can satisfy the electric quantity demand that electricelectric moves the ship under the different situation navigation.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a pure electric ship power assembly system based on three electric systems, including main control unit, power lithium cell group, super capacitor group and electric drive device, main control unit pass through the network with electric drive device links to each other, still includes the fuel cell stack, the fuel cell stack disposes fuel cell management system, fuel cell management system passes through the network and links to each other with the main control unit, main control unit pass through power switching device respectively with power lithium cell group, super capacitor group, fuel cell stack and electric drive device link to each other for it is right to control power switching device to realize the switching of power lithium cell group, super capacitor group and fuel cell stack with to electric drive device supplies power, and it is right to realize power lithium cell group, super capacitor group and the energy transfer between the fuel cell stack.
The power lithium battery pack is provided with a battery management system, and the battery management system is connected with the main controller through a network.
The super capacitor bank is provided with a super capacitor management system, and the super capacitor management system is connected with the main controller through a network.
The network is a CAN bus network.
Advantageous effects
Since the technical scheme is used, compared with the prior art, the utility model, have following advantage and positive effect: the utility model discloses a main control unit controls power switching device for can adopt different electrical power generating system to supply power to electric drive device under the different situation, thereby satisfy the demand of boats and ships navigation, and can also realize the ability transmission between the three electric systems through controlling power switching device, thereby guaranteed the long-time continuation of the journey mileage demand of boats and ships.
Drawings
Fig. 1 is a block diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The utility model relates to a pure electric ship power assembly system based on three electric systems, as shown in fig. 1, comprises a main controller, a power lithium battery pack, a super capacitor pack and an electric driving device, the main controller is connected with the electric driving device through a network and also comprises a fuel cell stack, the fuel cell stack is provided with a fuel cell management system which is connected with a main controller through a network, the main controller is respectively connected with the power lithium battery pack, the super capacitor pack, the fuel cell stack and the electric driving device through power switch devices, used for controlling a power switch device to realize the switching of the power lithium battery pack, the super capacitor pack and the fuel cell stack so as to supply power to the electric driving device, and realizing energy transfer among the power lithium battery pack, the super capacitor pack and the fuel cell stack. The power lithium battery pack is provided with a battery management system, and the battery management system is connected with the main controller through a network. The super capacitor bank is provided with a super capacitor management system, and the super capacitor management system is connected with the main controller through a network.
The main controller in this embodiment is composed of a digital controller DSP + FPGA device, which constitutes the control part of the entire powertrain system, and all external interfaces and data parts connected to the network are associated with the main controller. After the main controller completes hardware design, all internal control programs can be designed by adopting a DSP assembly language, so that the main controller has the characteristics of compact structure and small occupied space, and has high operation speed and flexible algorithm factor scheduling function. When the controller is designed, the computer downloads data via a programming interface and activates the operation, and in the setting stage, all the required parameters may be set in the controller, the assigned ports may be activated, the selected communication protocol may be used, or different communication rates may be used. And determining which interface is used as the main object interface of the system, wherein the communication interface is the main information which can be obtained, and then converting the main information into parameters and appointed interface protocols required by each module by arranging different protocols. Bidirectional or multi-party intercommunication is realized in the whole conversion process. In the initial stage of communication entering, the main tasks are to complete the comprehensive layout, the planning of the stack area and the determination of the communication rate, and the planning of the time sequence, etc.
The network adopted in the embodiment is a CAN bus network which is a core data transmission hub of the whole power assembly system, all information data CAN be transmitted and controlled mutually under the dispatching of the main controller, and the CAN bus network CAN enable the main controller and each component to realize module-level data communication.
The fuel cell stack in the embodiment adopts a hydrogen fuel cell stack, which is used as an energy storage system in three electric systems in the whole power assembly system, the energy output part of the hydrogen fuel cell stack is connected with the power switch device and receives the dispatching control of the power switch device, the input part of the hydrogen fuel cell stack is a hydrogen fuel cell control system, and the hydrogen fuel cell stack is controlled by the hydrogen fuel cell control system to produce hydrogen electricity. The hydrogen fuel cell control system is used as a main core controller of hydrogen production equipment to complete all control, regulation and output in the hydrogen fuel cell preparation process. The hydrogen fuel cell control system is connected to all control unit assemblies of the hydrogen fuel cell stack, adjusts and controls all parameters in the hydrogen production process, and meanwhile receives parameter adjustment requirements from a main controller through an interface of the hydrogen fuel cell control system to serve as an execution receiving controller of the main controller. All actions and adjustment parameters of the hydrogen fuel cell control system are controlled by a main controller.
The power lithium battery system in the embodiment is used as an energy storage system in three electric systems in the whole power assembly system, an energy output part of the power lithium battery system is connected with the power switch device and receives scheduling control of the power switch device, the output of electric energy of the power lithium battery system receives control of the battery management system, and charging and discharging of each lithium battery pack in the power lithium battery system are completed through the scheduling control of the power switch device. That is, the charging and discharging processes of the power lithium battery system are input and output under the execution control of the power switch device. The battery management system is responsible for monitoring and managing all single battery parameters of each lithium battery pack and transmitting the dynamic parameters to the main controller through the CAN bus network for display and information transmission. In addition, the battery management system also manages the energy flow process of the whole power lithium battery system, and the quantity value of the transmitted energy is determined by the original measured parameters.
The super capacitor system in the embodiment is used as an energy storage system in three electric systems in the whole power assembly system, the energy output part of the super capacitor system is connected with the power switch device, receives the dispatching control of the power switch device and the output of electric energy of the power switch device, receives the control of the super capacitor management system, and completes the charging and discharging of the super capacitor bank through the dispatching control of the power switch device. That is, the charging and discharging processes of the super capacitor system are input and output under the execution control of the power switch device. The super capacitor management system is responsible for monitoring and managing all parameters of the super capacitor module, and transmitting the dynamic parameters to the main controller through the CAN bus network for display and information transmission. In addition, the super capacitor management system also manages the energy flow process of the whole super capacitor system, and the quantity value of the transmitted energy is determined by the original measured parameters.
The power switching device in this embodiment is used as a switching device of a three-electric system, and the operation process of the power switching device is completely controlled by the main controller. At any moment, the energy-saving control device receives the adjusting control instruction of the controller, finishes outputting the energy to the electric driving device, and transmits the energy through the power bus. The mutual energy transfer of the three electric systems can be completed by controlling the power switch device. The power switching device in the embodiment can be realized by selecting a four-channel switching chip, each channel is respectively connected with the power lithium battery pack, the super capacitor pack, the fuel cell stack and the electric driving device, and the switches of different channels can be selected to be opened and closed through the main controller, so that the functions of switching and energy transfer are completed.
The electric driving device of the embodiment is connected with the power switch device through the power bus bar, and converts direct current into controlled alternating current variable frequency driving electricity through the electric driving device (variable frequency output control), so that the torque output of the motor is pushed to drive the propeller, and the purpose of propelling the ship to sail is achieved.
The power assembly system of the embodiment completes system connection, completes basic parameter setting of the main controller after being electrified, completes Internet link with a remote computer system, and the system is activated. The fuel cell control system, the battery management system and the super capacitor management system are observed through the main controller, and only when the observed main controller and each management control system are in a complete state, the system can start the motor driving device and start the motor, otherwise, the system can carry out regulation and control.
The control process of the main controller is as follows: during sailing, the three-phase switching is implemented according to the output state of the electric driving device, and the control process of the power assembly system mainly comprises three process stages:
1) and the rapid acceleration and braking processes in the ship navigation:
the acceleration process is that instant energy is needed to be provided, the instant energy is provided by the super capacitor, when the energy is deficient, the power lithium battery provides energy, and the hydrogen fuel battery pack provides the power lithium battery with supplementary electric energy; the braking process is an energy recovery process, and since the hydrogen fuel cell package cannot recover electric energy, the energy recovery is firstly carried out by the super capacitor, and when overflow occurs, redundant energy is received by the power lithium battery.
2) The system needs to provide sufficient power to drive the power (relatively flat)
At this time, the three-electric system provides the power driving system with the simultaneous output energy, because the hydrogen fuel cell package is characterized in that the system can meet the requirements when the small power demand energy is output, and the hydrogen fuel cell package, the power lithium battery and the super capacitor simultaneously output energy under the mild condition in order to output enough energy.
3) And continuous energy is needed to be provided during gentle navigation (cruise process of the ship)
When the pure electric ship enters a cruising stage (a cruising point position set by a power driving system), the hydrogen fuel cell pack directly provides electric energy for the ship to drive the ship to sail. When the system finds that the hydrogen fuel cell package has abundant energy, the hydrogen fuel cell package additionally supplements the lithium battery system with electricity in addition to the energy needed to provide the propulsion power.
It is not difficult to discover, the utility model discloses a main control unit controls power switching device for can adopt different electrical power generating system to supply power to electric drive device under the different situation, thereby satisfy the demand of boats and ships navigation, and can also realize the ability transmission between the three electric systems through controlling power switching device, thereby guaranteed the long-time continuation of the journey mileage demand of boats and ships.
Claims (4)
1. The utility model provides a pure electric ship power assembly system based on three electric systems, includes main control unit, power lithium cell group, super capacitor group and electric drive, main control unit pass through the network with electric drive links to each other, its characterized in that still includes the fuel cell stack, the fuel cell stack disposes fuel cell management system, fuel cell management system passes through the network and links to each other with the main control unit, main control unit pass through power switching device respectively with power lithium cell group, super capacitor group, fuel cell stack and electric drive link to each other for it is right to control power switching device to realize the switching of power lithium cell group, super capacitor group and fuel cell stack with to electric drive supplies power, and it is right to realize energy transfer between power lithium cell group, super capacitor group and the fuel cell stack.
2. A pure electric ship powertrain system based on a three electric system as claimed in claim 1, characterized in that the power lithium battery pack is configured with a battery management system, and the battery management system is connected with the main controller through a network.
3. A pure electric ship powertrain system based on a three electric system according to claim 1, characterized in that the super capacitor bank is configured with a super capacitor management system, and the super capacitor management system is connected with the main controller through a network.
4. A pure electric ship powertrain system based on a three electric system according to claim 1, characterized in that the network is a CAN bus network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922298030.6U CN211568269U (en) | 2019-12-19 | 2019-12-19 | Pure electric ship power assembly system based on three-electric system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922298030.6U CN211568269U (en) | 2019-12-19 | 2019-12-19 | Pure electric ship power assembly system based on three-electric system |
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| CN211568269U true CN211568269U (en) | 2020-09-25 |
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| CN201922298030.6U Active CN211568269U (en) | 2019-12-19 | 2019-12-19 | Pure electric ship power assembly system based on three-electric system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110979616A (en) * | 2019-12-19 | 2020-04-10 | 上海瑞华集团新能源技术中心(有限合伙) | Pure electric ship power assembly system based on three-electric system |
| CN112455641A (en) * | 2020-11-27 | 2021-03-09 | 上海丰滋新能源船舶科技有限公司 | Seamless switching link adjustable device for multiple energy mixing process |
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2019
- 2019-12-19 CN CN201922298030.6U patent/CN211568269U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110979616A (en) * | 2019-12-19 | 2020-04-10 | 上海瑞华集团新能源技术中心(有限合伙) | Pure electric ship power assembly system based on three-electric system |
| CN112455641A (en) * | 2020-11-27 | 2021-03-09 | 上海丰滋新能源船舶科技有限公司 | Seamless switching link adjustable device for multiple energy mixing process |
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Effective date of registration: 20240124 Address after: Building 5, Block A, No. 111 Huishen Road, Nanxiang Town, Jiading District, Shanghai, 200000 Patentee after: SHANGHAI FENGZI NEW ENERGY SHIP TECHNOLOGY Co.,Ltd. Country or region after: China Address before: Room 203, Building 2, No. 223 Jinyuan 3rd Road, Jiangqiao Town, Jiading District, Shanghai, 2018 Patentee before: Shanghai Ruihua Group new energy technology center (L.P.) Country or region before: China |