CN116094121B - Composite energy storage-based ship comprehensive power system - Google Patents
Composite energy storage-based ship comprehensive power system Download PDFInfo
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- CN116094121B CN116094121B CN202310194078.0A CN202310194078A CN116094121B CN 116094121 B CN116094121 B CN 116094121B CN 202310194078 A CN202310194078 A CN 202310194078A CN 116094121 B CN116094121 B CN 116094121B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 89
- 239000002131 composite material Substances 0.000 title claims abstract description 84
- 238000012545 processing Methods 0.000 claims abstract description 30
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- 230000000087 stabilizing effect Effects 0.000 claims abstract description 6
- 239000003990 capacitor Substances 0.000 claims description 69
- 230000001681 protective effect Effects 0.000 claims description 31
- 230000000670 limiting effect Effects 0.000 claims description 25
- 238000003825 pressing Methods 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 14
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- 238000000034 method Methods 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 239000000446 fuel Substances 0.000 description 4
- 230000036961 partial effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000006855 networking Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B79/00—Monitoring properties or operating parameters of vessels in operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M16/00—Structural combinations of different types of electrochemical generators
- H01M16/003—Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00309—Overheat or overtemperature protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
- H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/10—The dispersed energy generation being of fossil origin, e.g. diesel generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/42—The network being an on-board power network, i.e. within a vehicle for ships or vessels
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Sustainable Development (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application relates to a composite energy storage-based ship comprehensive power system which comprises a main power module and a composite energy storage device, wherein the composite energy storage device is used for stabilizing fluctuation of load power, the input end of the composite energy storage device is connected with the electric energy output end of a diesel generator set, and the output end of the composite energy storage device is used for compensating the load power; the ship load state detection module is used for detecting the current ship power consumption load power in real time so as to output a corresponding circuit load power signal value; the main control processing module is used for acquiring the working state information of the current main power module in real time. The power generation unit of the ship comprehensive power system always works near the optimal energy efficiency working point, and the energy efficiency index of the ship comprehensive power system is improved, so that the economy of the electric propulsion ship is improved, the energy utilization efficiency of the ship comprehensive power system is improved, and the effects of energy conservation and emission reduction are achieved.
Description
Technical Field
The application relates to the field of ship control systems, in particular to a ship comprehensive power system based on composite energy storage.
Background
At present, whether a low-voltage integrated power system or a medium-voltage integrated power system, electric energy required for sailing or operation is generally provided by networking a plurality of generator sets, and unified management and electric energy distribution are carried out by a Power Management System (PMS) according to sailing or operation working conditions and load power requirements. For the ship equipped with the medium-voltage comprehensive power system, when working conditions or loads change or fluctuate in a large range, fluctuation of loads and rotating speeds of a ship generator set is necessarily caused, and meanwhile, the power quality of the system is reduced, vibration and noise are increased, and the energy efficiency of the system is reduced.
The prior art mainly selects the networking workbench number of the diesel generator set according to the change of the load through a Power Management System (PMS), so that the on-grid generator set can work near the optimal working condition point under the current working condition as far as possible, but the control mode has slower dynamic response and can not achieve the ideal effect on the stabilization of the power fluctuation of the comprehensive power system.
Disclosure of Invention
In order to enable a generator set of the ship integrated power system to work around an optimal energy efficiency working point all the time and improve energy efficiency indexes of the ship integrated power system, the application provides the ship integrated power system based on composite energy storage.
The application provides a ship comprehensive power system based on composite energy storage, adopts following technical scheme:
a ship comprehensive power system based on composite energy storage comprises:
the main power module comprises a diesel generator set for providing electric energy for the ship;
the composite energy storage device is used for stabilizing fluctuation of load power, the input end of the composite energy storage device is connected with the electric energy output end of the diesel generating set, and the output end of the composite energy storage device is used for compensating the load power;
the ship load state detection module is used for detecting the current ship power consumption load power in real time so as to output a corresponding circuit load power signal value;
the main control processing module is used for acquiring the working state information of the current main power module in real time; the main control processing module is used for judging the current ship electricity load state according to the received circuit load signal; when the ship is judged to be in a light-load state, the main control processing module controls the composite energy storage device to keep a charging state; when the ship is judged to be in a heavy-load state, the main control processing module controls the composite energy storage device to be in a discharge state so as to compensate the ship electricity load power.
By adopting the technical scheme, the fuel consumption of the diesel generator is generally the lowest when the load is about 80%, and the point is called the optimal working point of the diesel generator. When the load deviates from the optimal working point, the fuel is not completely combusted, the fuel consumption is increased, and the emission of nitrogen oxides and sulfides is increased. Therefore, controlling the diesel engine to operate near the optimal operating point is one of the main ways for reducing fuel consumption and emissions of ships. When the device works, the diesel generator set is kept at an optimal working point, and the fluctuation of load power can be stabilized by utilizing the charge and discharge of the composite energy storage device; when the ship is in a light load state, the composite energy storage device is charged, so that redundant energy can be absorbed; and when the ship is in a heavy-load state, the composite energy storage device is discharged, so that insufficient power can be compensated. According to the method, the load power fluctuation of the ship medium-voltage comprehensive power system is stabilized by utilizing the composite energy storage device, so that the generator set of the ship comprehensive power system always works near the optimal energy efficiency working point, the energy efficiency index of the ship comprehensive power system is improved, the economy of the electric propulsion ship is improved, the energy utilization efficiency of the ship comprehensive power system is improved, and the effects of energy conservation and emission reduction are achieved.
Optionally, the composite energy storage device comprises a plurality of groups of super capacitors and storage batteries, a charge and discharge state information acquisition unit is arranged in the main control processing module, and the charge and discharge state information acquisition unit is used for acquiring and recording charge and discharge state information of each group of super capacitors and storage batteries in real time, wherein the charge and discharge state information comprises a single charge duration, a single discharge duration, a current charge state and charge and discharge times;
the main control processing module is internally provided with a charging and discharging management unit, and the charging and discharging management unit is based on the current ship electricity load state and controls the appointed super capacitor and the storage battery to charge or discharge according to the charging and discharging state information acquired by the charging and discharging state information acquisition unit; the charging and discharging priority of the super capacitor is higher than that of the storage battery.
By adopting the technical scheme, in order to ensure that the storage battery and the super-capacitor energy storage unit are not over-discharged or over-charged, the specified super-capacitor and the storage battery are accurately controlled to be charged or discharged at fixed time and fixed quantity by the charge and discharge management unit through acquiring the single charge duration, the single discharge duration, the current charge state and the charge and discharge times in real time, so that the service life of the composite energy storage device can be prolonged, and the storage battery and the super-capacitor of the composite energy storage device can work under the normal charge state; in addition, as the storage battery is subjected to chemical reaction once every time of charge and discharge, the super capacitor is subjected to physical reaction; for the storage battery, the service life of the storage battery is related to the charge and discharge times, namely, the more the charge and discharge times are, the shorter the service life of the storage battery is; conversely, the fewer the charge and discharge times, the longer the service life of the battery; when the composite energy storage device works, the charging and discharging priority of the super capacitor is higher than that of the storage battery, so that the service life of the storage battery can be prolonged by limiting the charging or discharging frequency of the storage battery.
Optionally, the main control processing module further includes:
the working environment detection unit is used for acquiring working environment information of the current composite energy storage device in real time, wherein the working environment information comprises environment temperature, environment humidity and harmful gas concentration;
the working environment automatic adjusting unit is used for judging whether the current working environment is in an abnormal state or not according to the working environment information acquired by the working environment detecting unit; when judging that the current working environment is in an abnormal state, the working environment automatic adjusting unit keeps the ventilation equipment or the door window of the area where the composite energy storage device is located in an open state; when judging that the current working environment is relieved of an abnormal state, the working environment automatic adjusting unit controls ventilation equipment or a window in the area where the composite energy storage device is located to be kept in a closed state.
By adopting the technical scheme, the change of the ambient temperature and the ambient humidity can influence the performance of the composite energy storage device, in addition, the composite energy storage device also generates heat during operation, when the working environment automatic regulating unit judges that the current working environment is in an abnormal state, for example, the ambient temperature and the ambient humidity reach or exceed warning values, at the moment, the working environment automatic regulating unit automatically controls ventilation equipment and doors and windows in the area where the composite energy storage device is positioned to keep on, thereby automatically realizing ventilation, heat dissipation and cooling and reducing adverse effects brought by severe environment to the performance of the composite energy storage device during operation; in addition, when the concentration of harmful gas in the working environment is detected to exceed the standard, the ventilation is performed timely, so that potential safety hazards can be greatly reduced.
Optionally, the method further comprises the following steps:
the protective device is used for adjusting the placement positions of the super capacitor and the storage battery;
the working environment information to be acquired by the working environment detection unit also comprises the degree of hull bump; the protection device is controlled by an automatic working environment adjusting unit; when the working environment automatic adjusting unit receives that the current hull bumping degree exceeds the warning range value, the working environment automatic adjusting unit outputs a corresponding control signal to control the starting of a protecting device, and the protecting device moves the positions of the super capacitor and the storage battery to a specified protecting area; when the working environment automatic adjusting unit receives that the current hull bumping degree is reduced below the warning range value, the working environment automatic adjusting unit outputs a reset signal to control the protective device to move the super capacitor and the storage battery to an initial position;
when the working environment automatic regulating unit receives that the current environment temperature is lower than a preset low-temperature warning value, the working environment automatic regulating unit also outputs a corresponding control signal so as to control the protective device to draw the positions of the super capacitor and the storage battery together;
When the working environment automatic regulating unit receives that the current environment temperature is maintained at a preset standard temperature range value, the working environment automatic regulating unit outputs a reset signal to control the protective device to move the super capacitor and the storage battery to an initial position; the trigger signal priority of the degree of hull pitch is higher than the trigger signal priority of the ambient temperature.
By adopting the technical scheme, in order to ensure the working stability of the super capacitor and the storage battery, the ventilation and heat dissipation performance of the super capacitor and the storage battery during working can be ensured by keeping the interval between the adjacent super capacitor or storage battery at a specified distance; when the working environment automatic adjusting unit receives that the current ship body jolt degree is within a specified preset warning range value, the ship body is severely rocked, at the moment, the working environment automatic adjusting unit outputs a corresponding control signal to control the protection device to start, the positions of the super capacitor and the storage battery are moved into a specified protection area through the protection device, at the moment, the stability and the firmness of the super capacitor and the storage battery when the ship body jolt at a distance can be ensured, and the super capacitor and the storage battery are effectively protected; when the bumping degree is reduced below a preset warning value, the working environment automatic regulating unit outputs a reset signal to control the protecting device to move the super capacitor and the storage battery to an initial position, so that the emergency protecting capability of the super capacitor and the storage battery is enhanced; in addition, when the ambient temperature is lower than a temperature preset value, in order to reduce the influence of low temperature on the working performance of the super capacitor and the storage battery, the positions of the super capacitor and the storage battery are moved towards the direction close to each other, so that heat loss can be reduced, and the temperature stability of a working area is ensured.
Optionally, the protection device comprises a mounting rack fixedly mounted on the hull, and a plurality of storage boxes for storing the super capacitor and the storage battery; the mounting frame is provided with a plurality of transverse storage racks which are mutually parallel and are sequentially arranged at intervals along the height direction of the mounting frame; the storage boxes are respectively arranged on the transverse storage racks in a sliding manner;
the mounting frame is provided with a push plate for pushing the storage boxes positioned at two sides of the transverse storage rack to move towards the directions approaching to each other; a traction belt is arranged between adjacent storage boxes on the same transverse storage rack, and the adjacent storage boxes are sequentially connected and fixed by the traction belt; the push plate is fixedly connected with the end parts of the traction belts which are opposite to each other.
By adopting the technical scheme, the super capacitor and the storage battery are placed in the storage box, the storage box can provide a relatively stable working environment for the super capacitor and the storage battery, and damage to the super capacitor and the storage battery caused by articles falling outside when the hull bumps can be effectively prevented; meanwhile, wiring of the composite energy storage device can be standardized, so that the wiring is more reasonable and ordered; when the protection device is triggered, the push plate pushes the storage boxes on the transverse storage rack to move towards the direction of approaching each other, and the positions of the storage boxes are moved to be mutually abutted, so that the compactness and stability among the storage boxes can be improved; in addition, the heat loss rate can be reduced under the low-temperature environment, and the heat preservation performance is improved; when the push plate is gradually reset in a direction away from the storage box, the traction belt gradually resets the traction storage box in a direction away from each other; when the push plate moves to the initial state, the traction belt is in a tightening state, each storage box also moves to the initial position, and the stability of the storage boxes after reset is ensured under the tightening of the traction belt.
Optionally, the mounting frame is provided with a longitudinal lifting frame for driving the transverse storage racks to mutually approach along the height direction of the mounting frame; the transverse storage racks are provided with locking assemblies, the number of which corresponds to the number of the storage boxes one by one, and the locking assemblies are used for locking the storage boxes which move to the initial positions;
the side wall of the storage box, which faces the adjacent storage box, is provided with an unlocking switch for controlling the designated locking component to unlock the locking state.
By adopting the technical scheme, when the transverse storage rack is driven by the longitudinal lifting frame to move towards the direction close to each other, the longitudinal lifting frame can descend the height of the storage box at the highest position, so that the aim of downwards moving the whole gravity center position of the mounting frame is fulfilled; when the unlocking switch on the storage box moves to be in contact with the adjacent storage box, the unlocking switch is triggered, and the unlocking switch controls the locking assembly to unlock between the storage box and the transverse storage rack; the push plate can smoothly push the storage boxes to move on the transverse storage rack, and the storage boxes on the same vertical plane are kept in a mutually compressed state at the moment, so that the push plate can ensure that the storage boxes slide more stably when pushing the storage boxes; when the position of the storage box needs to be reset, the push plates on two sides are moved to the directions away from each other, after the storage boxes are moved to the initial positions of the transverse storage racks where the storage boxes are located, the longitudinal lifting frames reset the position heights of the transverse storage racks, and once the unlocking switch is separated from the adjacent storage boxes, the locking assembly automatically locks the storage boxes and the transverse storage racks where the storage boxes are located.
Optionally, a limiting part is slidably arranged on the storage box, and a slot for inserting a specified limiting part to realize positioning of the storage box is arranged on the transverse storage rack; the storage box is also provided with a first spring for pressing the limiting piece into the appointed slot; when the storage box moves to the initial position of the transverse storage rack, the limiting piece is pressed into the designated slot under the action of the elastic force of the first spring; the inner side wall of the slot is provided with a guide inclined plane for guiding the limiting piece to move in or out of the slot.
By adopting the technical scheme, when the push plate resets the position of the storage box under the action of the traction belt, the limiting piece of the storage box is in a compressed state in the sliding process; when the limiting piece moves to be aligned with the slot at the designated position, the limiting piece is inserted into the slot under the action of the elastic force of the first spring; the limiting piece is matched with the slot in an inserting way, so that further movement of the storage box can be limited, and meanwhile, the storage box is positioned, and the position of the storage box can be locked more accurately by the later locking assembly; in addition, the guide inclined plane can ensure that the limiting piece can be smoothly moved out of the slot when the storage box is pushed by the later push plate.
Optionally, a chassis truck for bearing the super capacitor and the storage battery is arranged in the storage box, and the super capacitor and the storage battery are fixedly arranged on the chassis truck; the inner side wall of the storage box is provided with a first plug-in socket, and the chassis is provided with a second plug-in socket which is used for being mutually plugged and matched with the first plug-in socket; the first plug seat is positioned on the sliding path of the second plug seat.
By adopting the technical scheme, when the super capacitor and the storage battery in the storage box are required to be replaced, the locking between the chassis truck and the storage box is firstly released, and then the purpose of taking the super capacitor or the storage battery out of the storage box can be realized by only moving the chassis truck out of the storage box; when the super capacitor and the storage battery are installed, the chassis truck is required to be pushed into the storage box again; after the chassis is completely pushed into the storage box, the first plug-in seat is smoothly butted with the second plug-in seat, and the super capacitor and the storage battery smoothly complete wiring work at the moment; the chassis truck is arranged, so that the super capacitor and the storage battery are convenient to replace integrally, and the replacement efficiency is improved.
Optionally, a limit seat positioned outside the storage box is arranged on the chassis; a fixing assembly is arranged between chassis vehicles distributed along the height direction of the mounting frame, and comprises a main sleeve and an auxiliary sleeve which are sleeved with each other; one end of the auxiliary sleeve is arranged in the main sleeve in a sliding way; a second spring connected with the auxiliary sleeve is arranged in the main sleeve and is used for pressing the auxiliary sleeve into the main sleeve;
The fixing component sequentially penetrates through the limiting seat along the height direction of the mounting frame; the main sleeve is provided with a first pressing plate which is used for being in interference with the outer side wall of the storage box, and the auxiliary sleeve is provided with a second pressing plate which is used for being in interference with the outer side wall of the storage box.
By adopting the technical scheme, as the fixed component connects each chassis truck arranged along the height direction of the mounting frame in sequence, the chassis trucks in the same column on the same vertical plane can be simultaneously taken out from the storage boxes in which the chassis trucks are positioned by pulling the fixed component, thereby realizing the purpose of replacing super capacitors or storage batteries in batches and further improving the replacement efficiency; when the main sleeve and the auxiliary sleeve move in the direction away from each other, the second spring positioned in the main sleeve is gradually stretched, the elasticity of the second spring is continuously enhanced, and the external force applied by the first pressing plate and the second pressing plate to the storage boxes respectively is continuously enhanced along with the rising of the height of the uppermost storage box.
Optionally, a guide rod is arranged on the mounting frame, and a protective cover plate for covering the storage box below is slidably arranged on the guide rod; the guide rod is sleeved with a third spring, and the third spring is used for pressing the protective cover plate downwards in the direction approaching to the storage box; the two sides of the protective cover plate are respectively provided with a pull rope, the mounting frame is rotatably provided with a fixed pulley, and the pull ropes penetrate through the fixed pulleys and are fixedly connected with the adjacent push plates;
The protection apron both sides all are provided with the expansion plate, the expansion plate slides along horizontal supporter length direction, stay cord and expansion plate linkage.
By adopting the technical scheme, when the storage box is at the initial position, the push plates at the two sides lift the protective cover plate to the designated height through the pull ropes, and the third springs are kept in a compressed state; when the push plates at two sides move towards the directions close to each other, the protective cover plate gradually moves towards the storage box downwards along the guide rod under the action of the elastic force of the third spring, and finally the protective cover plate is pressed on the storage box, so that the stability of the storage box can be further improved through the protective cover plate, and meanwhile, the purpose of waterproof protection is achieved for the storage box when water leakage occurs at the top of the ship body; the length of the protective cover plate can be correspondingly adjusted along with the movement of the push plate due to the arrangement of the telescopic plate, so that the suitability is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the generator set of the ship comprehensive power system always works near the optimal energy efficiency working point, and the energy efficiency index of the ship comprehensive power system is improved, so that the economy of the electric propulsion ship is improved, the energy utilization efficiency of the ship comprehensive power system is improved, and the effects of energy conservation and emission reduction are achieved;
2. When the composite energy storage device works, the charging and discharging priority of the super capacitor is higher than that of the storage battery, so that the service life of the storage battery can be prolonged by limiting the charging or discharging frequency of the storage battery;
3. the super capacitor and the storage battery are moved to the appointed protection area through the protection device, so that the stability and the firmness of the super capacitor and the storage battery when the ship body is in distance shaking can be ensured, and the super capacitor and the storage battery are effectively protected.
Drawings
Fig. 1 is a block diagram of an embodiment of the present application.
Fig. 2 is an operation flowchart of the operation environment automatic adjustment unit in the embodiment of the present application.
Fig. 3 is a schematic diagram of power fluctuation stabilizing control principle of the composite energy storage device in the embodiment of the application.
Fig. 4 is a schematic overall structure of the protection device according to the embodiment of the present application.
Fig. 5 is a partial schematic view of the inside of the highlighting guard of fig. 4.
Fig. 6 is a schematic view of a part of the hidden part of fig. 5.
Fig. 7 is an exploded view showing a partial structure of the inside of the storage box.
FIG. 8 is an exploded view showing a partial structure of the locking assembly inside the lateral placement frame.
Fig. 9 is a schematic view showing the overall structure of the fixing member when it is engaged with the storage box.
Fig. 10 is a schematic exploded view of a partial structure of the securing assembly.
Reference numerals illustrate: 1. a main power module; 10. a diesel generator set; 2. a composite energy storage device; 3. the ship load state detection module; 4. a main control processing module; 41. a charge and discharge state information acquisition unit; 42. a charge/discharge management unit; 43. a working environment detection unit; 44. an automatic working environment adjusting unit; 5. a protective device; 51. a mounting frame; 511. a transverse rack; 512. unlocking the switch; 513. a slot; 5130. a guide slope; 514. a guide rod; 515. a fixed pulley; 52. a storage box; 520. a first spring; 521. a limiting piece; 522. a traction belt; 523. a first socket; 53. a push plate; 54. a longitudinal lifting frame; 55. a locking assembly; 551. a locking member; 552. a return spring; 553. an electromagnet; 56. chassis truck; 561. a second socket; 562. a limit seat; 57. a fixing assembly; 571. a main sleeve; 572. a secondary sleeve; 573. a second spring; 574. a first platen; 575. a second pressing plate; 6. a protective cover plate; 60. a third spring; 61. a pull rope; 62. and a telescopic plate.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-8. For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, the term "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein, unless otherwise specified, generally indicates that the associated object is an "or" relationship
The embodiment of the application discloses a ship comprehensive power system based on composite energy storage. Referring to fig. 1 and 2, the ship control system based on the composite energy storage technology mainly comprises a main power module 1, a composite energy storage device 2, a ship load state detection module 3, a main control processing module 4 and a protection device 5. The main control processing module 4 is in signal communication with the main power module 1, the composite energy storage device 2, the ship load state detection module 3 and the protection device 5 respectively.
The main control processing module 4 may include a central processing unit such as a CPU or an MPU, or a host system constructed with the CPU or the MPU as a core, including hardware or software. The main control processing module 4 can be freely controlled by programming so as to operate according to the wish of people. The central processing unit may control the local metering/tracing unit, the remote communication unit, etc. through an internal protocol. Internal protocols broadly refer to all protocols within the same system that implement mutual communication or linking, including: human-machine interaction protocol, software/hardware (interface) protocol, chip Bus (C-Bus) protocol, internal Bus (I-Bus) protocol, etc. With the development of integrated circuit technology, some protocols belonging to external buses (E-Bus) are also attributed to internal protocols after the external buses (E-Bus) are integrated into a chip.
As shown in fig. 1 and 2, the main power module 1 includes a plurality of groups of diesel generator sets 10 for providing electric energy guarantee for the ship, and the main control processing module 4 is configured to obtain the working state information of the current main power module 1 in real time, where the obtained working state information includes, but is not limited to: the parameters of the diesel generator set 10 such as voltage, current, active power, reactive power, frequency, power factor, apparent power, rotational speed, water temperature, oil temperature, battery voltage, engine oil pressure, motor status, power signals of the electrical loads, etc.
The ship load state detection module 3 is used for detecting the current ship electric load power in real time to output a corresponding circuit load power signal value, the main control processing module 4 is internally provided with an electric load power preset value, and if the obtained circuit load power signal value exceeds the electric load power preset value, the current ship electric load power is indicated to be in a heavy load state. And if the obtained circuit load power signal value is lower than the power consumption load power preset value, indicating that the current ship power consumption load power is in a light load state.
The output end of the composite energy storage device 2 is connected to a power utilization network of the ship and is used for stabilizing fluctuation of power utilization load power. The composite energy storage device 2 comprises a plurality of groups of super capacitors and storage batteries, and the input end of the composite energy storage device 2 is electrically connected with the electric energy output end of the diesel generating set 10. When the ship electric load power is in a light load state, the main control processing module 4 controls the composite energy storage device 2 to charge. When the ship electric load power is in a heavy load state, the main control processing module 4 controls the composite energy storage device 2 to maintain a discharge state so as to compensate the ship electric load power.
The framework of the power fluctuation stabilizing control principle of the composite energy storage device 2 is shown in fig. 3. The composite energy storage system provides energy in real time as follows:
P_HESS(t)＝P_0(t)-P_0^'(t)
P_HESS (t) is real-time energy of the composite energy storage device, P_0 (t) is actual power of a ship load, and P_0' (t) is stable power of the ship load stabilized by the composite energy storage device 2.
As shown in fig. 1 and 2, the main control processing module 4 is provided with a charge and discharge state information acquisition unit 41, where the charge and discharge state information acquisition unit 41 is configured to acquire and record charge and discharge state information of each group of super capacitors and the storage battery in real time, and the acquired charge and discharge state information includes, but is not limited to: a single charge duration, a single discharge duration, a current state of charge, and a number of charge and discharge times. The main control processing module 4 is also internally provided with a charge and discharge management unit 42, and the charge and discharge management unit 42 is used for controlling the specified super capacitor and the storage battery to charge or discharge according to the charge and discharge state information acquired by the charge and discharge state information acquisition unit 41 based on the current ship electricity load state, wherein the charge and discharge priority of the super capacitor is higher than that of the storage battery.
The composite energy storage device 2 respectively and independently controls the charge and discharge of the storage battery energy storage module and the super capacitor energy storage unit through a bidirectional multiport DC/DC converter. In order to ensure that the storage battery and the super-capacitor energy storage unit do not have over-discharge or over-charge, the charge-discharge management unit 42 may adopt a charge-discharge control strategy based on state of charge (SOC) detection, and detect charge-discharge voltages and currents of the storage battery and the super-capacitor energy storage unit through a state of charge detector, respectively, for real-time assessment of the states of charge of the storage battery and the super-capacitor. When the ship electricity load power needs to be compensated, the super capacitor is controlled to charge and discharge preferentially.
As shown in fig. 1 and 2, the main control processing module 4 further includes a working environment detecting unit 43 and a working environment automatic adjusting unit 44, where the working environment detecting unit 43 and the working environment automatic adjusting unit 44 are in signal communication. The working environment detection unit 43 is configured to obtain, in real time, working environment information of the current composite energy storage device 2, where the working environment information includes an environmental temperature, an environmental humidity, a concentration of harmful gas, and a hull bumping degree. The working environment automatic adjusting unit 44 is configured to determine whether the working environment of the current composite energy storage device 2 is in an abnormal state according to the working environment information acquired by the working environment detecting unit 43.
A high Wen Jingjie value is preset in the working environment detection unit 43, when the working environment detection unit 43 detects that the environmental temperature value of the composite energy storage device 2 reaches or exceeds the high temperature warning value, the working environment detection unit 43 judges that the current environmental temperature of the composite energy storage device 2 is in a high temperature abnormal state, and at the moment, the working environment automatic adjustment unit 44 controls the electric door and window of the area where the composite energy storage device 2 is to be kept in an open state. The working environment detecting unit 43 is further preset with a standard temperature range value, when the working environment detecting unit 43 detects that the environmental temperature value where the composite energy storage device 2 is located is within the standard temperature range value and is kept within the standard temperature range value continuously within a specified preset time period, the working environment automatic adjusting unit 44 will control the electric door and window in the area where the composite energy storage device 2 is located to keep a closed state.
The working environment detecting unit 43 is also provided with an environmental humidity warning value, and when the working environment detecting unit 43 detects that the environmental humidity value of the composite energy storage device 2 reaches or exceeds the environmental humidity warning value, the working environment automatic adjusting unit 44 will control the ventilation equipment of the area where the composite energy storage device 2 is located to be kept in an on state. When the working environment detecting unit 43 detects that the time when the environmental humidity value is continuously lower than the environmental humidity warning value has reached the preset time period, the working environment automatic adjusting unit 44 will control the ventilation equipment of the area where the composite energy storage device 2 is located to be turned off.
Similarly, the working environment detecting unit 43 is further provided with a preset value of harmful gas, when the working environment detecting unit 43 detects that the concentration value of the harmful gas in the working environment of the composite energy storage device 2 exceeds the preset value of the harmful gas, the automatic working environment adjusting unit 44 also keeps the ventilation equipment controlling the area where the composite energy storage device 2 is located in an on state until the concentration value of the harmful gas is reduced below the preset value of the harmful gas, and the time for keeping reaching standards continuously reaches a preset time period, at this time, the automatic working environment adjusting unit 44 will control the ventilation equipment controlling the area where the composite energy storage device 2 is located to be closed.
As shown in fig. 1 and 2, the working environment detecting unit 43 is provided with a hull bump guard range value, and when the working environment detecting unit 43 detects that the current hull bump exceeds the hull bump guard range value, the working environment automatic adjusting unit 44 outputs a corresponding control signal to control the protection device 5 to be activated. The protection device 5 moves the positions of the super capacitor and the storage battery to a designated protection area. When the working environment automatic adjustment unit 44 receives the decrease of the current degree of hull-bump below the value of the hull-bump warning range and keeps the current degree of hull-bump below the value of the hull-bump warning range for a preset period of time, the working environment automatic adjustment unit 44 outputs a reset signal to control the protection device 5 to move the super capacitor and the storage battery to the initial position.
The working environment detecting unit 43 is also provided with a low-temperature warning value and a standard temperature range value, when the working environment automatic adjusting unit 44 receives that the current environment temperature is lower than the low-temperature warning value, the working environment automatic adjusting unit 44 outputs a corresponding control signal to control the protecting device 5 to move the positions of the super capacitor and the storage battery towards each other. When the working environment automatic adjusting unit 44 receives that the current environment temperature is maintained at the preset standard temperature range value, the working environment automatic adjusting unit 44 outputs a reset signal to control the protecting device 5 to move the super capacitor and the storage battery to the initial position. It is mentioned that the trigger signal priority of the degree of hull pitching is higher than the trigger signal priority of the ambient temperature.
As shown in fig. 4 and 5, the protection device 5 includes a mounting frame 51 fixedly mounted on the hull, a plurality of storage boxes 52 for storing super capacitors and storage batteries, the number of the storage boxes 52 can be increased or decreased according to actual requirements, in this embodiment, the storage boxes 52 are provided with three groups, the three groups of storage boxes 52 are sequentially arranged at intervals along the height direction of the mounting frame 51, the number of storage boxes 52 in the same group is four, and the four storage boxes 52 are sequentially arranged along the length direction of the mounting frame 51.
As shown in fig. 5 and 6, three transverse storage racks 511 are mounted on the mounting rack 51 and are sequentially arranged at intervals along the height direction of the mounting rack 51, the three transverse storage racks 511 are parallel to each other, and the length direction of the transverse storage racks 511 extends along the length direction of the mounting rack 51. Three storage boxes 52 in the same group are slidably disposed on the same lateral rack 511.
As shown in fig. 5 and 6, a vertical lifting frame 54 for driving the transverse rack 511 to lift along the height direction of the mounting frame 51 is arranged on the mounting frame 51, the vertical lifting frame 54 comprises a first screw rod rotatably mounted on the mounting frame 51, the length direction of the first screw rod extends along the height direction of the mounting frame 51, the first screw rod sequentially passes through three transverse racks 511 along the height direction of the mounting frame 51, the transverse rack 511 at the uppermost layer and the transverse rack 511 at the lowermost layer are respectively in threaded connection with the end parts of the first screw rod, and threads at two ends of the first screw rod are reverse threads.
When the first screw rod rotates, the transverse rack 511 at the uppermost layer and the transverse rack 511 at the lowermost layer are driven by the first screw rod to synchronously lift in directions approaching to or separating from each other. A motor for driving the first screw rod to rotate is fixedly arranged at the top of the mounting frame 51. The transverse rack 511 positioned in the middle layer is rotationally connected with the middle section of the first screw rod through a bearing, and when the first screw rod rotates under the drive of a motor, the height of the transverse rack 511 positioned in the middle layer is kept unchanged.
As shown in fig. 5 and 6, the mounting frame 51 is further provided with two sets of pushing plates 53 in a sliding manner, and the pushing plates 53 are used for pushing the storage boxes 52 at two sides of the transverse storage rack 511 to move towards each other. The pushing plate 53 extends along the height direction of the mounting frame 51, and the pushing plate 53 is symmetrically arranged at the left side and the right side of the transverse rack 511. The push plate 53 is penetrated with a relief hole, and the end parts of the transverse shelf 511 respectively pass through the opposite relief holes. The transverse shelf 511 at the uppermost layer and the transverse shelf 511 at the lowermost layer are slidably disposed on the push plate 53 along the height direction of the push plate 53 through the relief holes. The second lead screw that extends along the length direction of mounting bracket 51 is installed in the rotation of mounting bracket 51 top, and the screw thread at second lead screw both ends is reverse screw thread equally, and two sets of push pedal 53 threaded connection respectively at second lead screw both ends. When the second screw rod rotates under the drive of the motor, the second screw rod drives the pushing plates 53 at both sides to move toward or away from each other.
As shown in fig. 5 and 6, a traction belt 522 is detachably mounted between adjacent storage boxes 52 located on the same transverse storage rack 511, and the traction belt 522 sequentially connects and fixes the outer side walls of four storage boxes 52 located in the same group. A traction belt 522 is also provided between the push plate 53 and the respective opposite outermost storage box 52, where the traction belt 522 has a certain elasticity. The push plates 53 are attached and secured to the respective opposing storage bins 52 by means of the traction belt 522.
As shown in fig. 5, 7 and 8, locking assemblies 55 are installed in the transverse rack 511, the number of which corresponds to the number of storage boxes 52 in the same group, and when the push plates 53 on both sides are driven by the second screw rod to move in a direction away from each other, the traction belts 522 move the traction storage boxes 52 in a direction away from each other. When the pushing plates 53 on both sides are moved to the ends of the second screw rod, the traction belts 522 are in a tight state, and the storage boxes 52 are positioned on the transverse storage rack 511 at the initial positions of the storage boxes 52. The locking assemblies 55 are respectively located at initial positions of the respective storage boxes 52, and the locking assemblies 55 are used to lock the storage boxes 52 relatively moved to the initial positions.
As shown in fig. 5, 7 and 8, the locking assembly 55 includes an iron locking member 551 slidably disposed in the transverse rack 511 along the height direction of the mounting frame 51, and a through hole for the end of the locking member 551 to pass through is formed on the upper surface of the transverse rack 511. The locking assembly 55 further includes a return spring 552 disposed within the lateral rack 511, the return spring 552 telescoping in the sliding direction of the lateral rack 511. One end of the return spring 552 is fixedly connected with the inner side wall of the transverse storage rack 511, the other end of the return spring 552 is fixedly connected with the locking piece 551, and the return spring 552 is used for pressing the locking piece 551 into the transverse storage rack 511 in a natural state. The locking assembly 55 further includes an electromagnet 553 disposed on an inner sidewall of the lateral rack 511, the electromagnet 553 being located on a side of the locking piece 551 facing away from the return spring 552. When the electromagnet 553 is electrified, the electromagnet 553 drives the locking piece 551 to lift upwards, and finally the electromagnet 553 is attracted with the locking piece 551. At this time, the end of the locking piece 551 extends out of the through hole, so as to limit the storage box 52 at the initial position on the transverse storage rack 511.
A unlock switch 512 for controlling the electromagnet 553 to unlock is installed on a side wall of the storage box 52 facing the adjacent storage box 52, the unlock switch 512 is provided on a power supply circuit of the electromagnet 553, and the unlock switch 512 is a push-type normally closed switch. When the unlocking switch 512 is kept in a pressed state, the power supply circuit of the electromagnet 553 is cut off, and the end of the locking piece 551 is retracted into the transverse shelf 511 under the action of the return spring 552.
As shown in fig. 7 and 8, a stopper 521 is slidably provided on the storage box 52, and a slot 513 into which the prescribed stopper 521 is inserted is provided on the lateral rack 511. The storage box 52 is further provided with a first spring 520 for pressing the stopper 521 into the designated slot 513. When the push plate 53 pulls the position of the storage box 52 to the initial position by the pull belt 522, the stopper 521 will place the first spring 520 in compression during the sliding movement of the storage box 52. When the limiting member 521 moves to be opposite to the slot 513 at the designated position, the limiting member 521 is inserted into the slot 513 under the elastic force of the first spring 520, so that the storage box 52 can be ensured to move to the initial position accurately. The slot 513 is provided on an inner side wall thereof with a guide slope 5130 for guiding the stopper 521 into or out of the slot 513. The guide slope 5130 ensures that the limit piece 521 can be smoothly removed from the slot 513 when the later push plate 53 pushes the storage box 52.
As shown in fig. 6 and 7, a chassis 56 for carrying a super capacitor and a storage battery is slidably disposed in the storage box 52, and both the super capacitor and the storage battery are fixedly mounted on the chassis 56. The first plug-in socket 523 is installed on the inner side wall of the storage box 52 facing the sliding-in direction of the chassis 56, the second plug-in socket 561 used for being mutually plug-in matched with the first plug-in socket 523 is installed on the side wall of the chassis 56 facing the first plug-in socket 523, and the first plug-in socket 523 is located on the sliding path of the second plug-in socket 561. The networking interface of the super capacitor and the storage battery is electrically connected with the second plug socket 561.
As shown in fig. 9 and 10, the outer side walls of the chassis 56 close to the opening surfaces of the storage boxes 52 where the chassis 56 are located are integrally formed with limiting seats 562, the same group of fixing assemblies 57 are arranged between the chassis 56 arranged along the height direction of the mounting frame 51, and the fixing assemblies 57 sequentially pass through the limiting seats 562. The fixing assembly 57 includes a main sleeve 571 and two auxiliary sleeves 572. The sub-bushings 572 are inserted from both end openings of the main bushing 571 and slid onto the main bushing 571, respectively. A second spring 573 is provided in the main sleeve 571 to expand and contract in the sliding direction of the sub sleeve 572, and the two sub sleeves 572 are fixedly connected by the second spring 573. The second spring 573 may pull the two side secondary cannulae 572 back into the primary cannula 571 in a natural state.
As shown in fig. 9 and 10, two first pressing plates 574 are fixedly mounted on the outer side wall of the main sleeve 571, and the first pressing plates 574 are respectively attached to the upper and lower outer side walls of the storage box 52 located in the middle layer. The outer side walls of one ends, far away from the main sleeve 571, of the auxiliary sleeve 572 are fixedly provided with second pressing plates 575, and the second pressing plates 575 are mutually attached and abutted with the outer side walls of the storage boxes 52 which are opposite to each other under the action of second springs 573. The first pressure plate 574 and the second pressure plate 575 are fastened and fixed on the fixing component 57 through bolts.
As shown in fig. 5 and 6, a guide rod 514 is fixedly mounted on the top of the mounting frame 51 at the center axis of the mounting frame 51, and the guide rod 514 extends in the height direction of the mounting frame 51. The guide rod 514 is provided with a protective cover plate 6 for covering the lower storage box 52, the protective cover plate 6 is horizontally arranged, and the protective cover plate 6 is slidably arranged on the guide rod 514 along the length direction of the guide rod 514. The guide rod 514 is sleeved with a third spring 60, and the third spring 60 is positioned on one side of the protective cover plate 6 away from the lower storage box 52. The upper end of the third spring 60 is fixedly connected with the mounting frame 51, and the lower end of the third spring 60 is abutted against the protective cover plate 6. In a natural state, the third spring 60 is used to press the protective cover 6 downward in a direction approaching the storage box 52.
As shown in fig. 5 and 6, the side walls of the protective cover plate 6, which are close to the push plate 53, are respectively provided with a telescopic plate 62, and the telescopic plates 62 are slidably arranged on the protective cover plate 6 along the length direction of the transverse storage rack 511. The fixed pulleys 515 are rotatably arranged on the outer side wall of the top of the expansion plate 62, and three fixed pulleys 515 which are sequentially and alternately arranged along the length direction of the protective cover plate 6 are rotatably arranged on the top of the mounting frame 51. A pull rope 61 is arranged between the push plate 53 and the expansion plate 62, the pull rope 61 sequentially passes through each fixed pulley 515 and then connects the push plates 53 on two sides with the expansion plate 62, and the linkage between the push plate 53 and the expansion plate 62 is realized by the pull rope 61.
When the push plates 53 on both sides are moved in the direction approaching each other, the third spring 60 will push the shield cover 6 to move downward as a whole. When the push plates 53 on the two sides move away from each other, the protective cover plate 6 is driven to be lifted upwards wholly under the action of the pull rope 61.
The implementation principle of the ship comprehensive power system based on composite energy storage is as follows: when the ship is in a light load state, the composite energy storage device 2 is charged, so that the redundant energy can be absorbed. When the ship is in a heavy-load state, the composite energy storage device 2 is discharged, so that the insufficient power can be compensated. According to the method, the load power fluctuation of the ship medium-voltage comprehensive power system is stabilized by the composite energy storage device 2, so that the generator set of the ship comprehensive power system always works near the optimal energy efficiency working point, the energy efficiency index of the ship comprehensive power system is improved, the economy of the electric propulsion ship is improved, the energy utilization efficiency of the ship comprehensive power system is improved, and the effects of energy conservation and emission reduction are achieved.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. A ship comprehensive power system based on composite energy storage is characterized by comprising:
a main power module (1) comprising a diesel generator set (10) for providing electrical energy to the vessel;
the composite energy storage device (2) is used for stabilizing fluctuation of load power, the input end of the composite energy storage device (2) is connected with the electric energy output end of the diesel generating set (10), and the output end of the composite energy storage device (2) is used for compensating the load power;
the ship load state detection module (3) is used for detecting the current ship power consumption load power in real time so as to output a corresponding circuit load power signal value;
the main control processing module (4) is in signal communication with the main power module (1), the composite energy storage device (2) and the ship load state detection module (3) respectively, and the main control processing module (4) is used for acquiring the working state information of the current main power module (1) in real time; the main control processing module (4) also judges the current ship electricity load state according to the received circuit load signal; when the ship is judged to be in a light-load state, the main control processing module (4) controls the composite energy storage device (2) to keep a charging state; when the ship is judged to be in a heavy-load state, the main control processing module (4) controls the composite energy storage device (2) to be in a discharge state so as to compensate the power of the ship electric load;
The composite energy storage device (2) comprises a plurality of groups of super capacitors and storage batteries,
the main control processing module (4) further comprises:
the working environment detection unit (43) is used for acquiring the working environment information of the current composite energy storage device (2) in real time, wherein the working environment information comprises the environment temperature, the environment humidity and the harmful gas concentration;
a work environment automatic adjustment unit (44) for judging whether the current work environment is in an abnormal state or not, based on the work environment information acquired by the work environment detection unit (43);
the method also comprises the following steps:
the protective device (5) is arranged on the protective device (5) and is used for adjusting the placement positions of the super capacitor and the storage battery;
the working environment information to be acquired by the working environment detection unit (43) also comprises the degree of hull pitching; the protection device (5) is controlled by an automatic working environment adjusting unit (44); when the working environment automatic adjusting unit (44) receives that the current ship body bumping degree exceeds the warning range value, the working environment automatic adjusting unit (44) outputs a corresponding control signal to control the protection device (5) to start, and the protection device (5) moves the positions of the super capacitor and the storage battery to a specified protection area; when the working environment automatic adjusting unit (44) receives that the current ship body bumping degree is reduced below the warning range value, the working environment automatic adjusting unit (44) outputs a reset signal to control the protective device (5) to move the super capacitor and the storage battery to the initial position;
When the working environment automatic regulating unit (44) receives that the current environment temperature is lower than a preset low-temperature warning value, the working environment automatic regulating unit (44) outputs corresponding control signals so as to control the protecting device (5) to draw the positions of the super capacitor and the storage battery together;
when the working environment automatic regulating unit (44) receives that the current environment temperature is maintained at a preset standard temperature range value, the working environment automatic regulating unit (44) outputs a reset signal to control the protective device (5) to move the super capacitor and the storage battery to an initial position; the trigger signal priority of the ship body jolt degree is higher than that of the trigger signal at the ambient temperature;
the protection device (5) comprises a mounting frame (51) which is fixedly arranged on the ship body, and a plurality of storage boxes (52) which are used for storing the super capacitor and the storage battery; a plurality of transverse storage racks (511) are arranged on the mounting rack (51), and the transverse storage racks (511) are mutually parallel and are sequentially arranged at intervals along the height direction of the mounting rack (51); the storage boxes (52) are respectively arranged on the transverse storage racks (511) in a sliding manner;
The mounting frame (51) is provided with a push plate (53) for pushing the storage boxes (52) positioned at two sides of the transverse storage rack (511) to move towards the directions approaching each other; a traction belt (522) is arranged between adjacent storage boxes (52) positioned on the same transverse storage rack (511), and the traction belt (522) connects and fixes the adjacent storage boxes (52) in sequence; the push plate (53) is fixedly connected with the end parts of the traction belts (522) which are opposite to each other.
2. The composite energy storage based ship integrated power system according to claim 1, wherein,
the main control processing module (4) is internally provided with a charge and discharge state information acquisition unit (41), the charge and discharge state information acquisition unit (41) is used for acquiring and recording charge and discharge state information of each group of super capacitors and storage batteries in real time, and the charge and discharge state information comprises single charge duration, single discharge duration, current charge state and charge and discharge times;
a charging and discharging management unit (42) is further arranged in the main control processing module (4), and the charging and discharging management unit (42) is based on the current ship electricity load state and controls the designated super capacitor and the storage battery to charge or discharge according to the charging and discharging state information acquired by the charging and discharging state information acquisition unit (41); the charging and discharging priority of the super capacitor is higher than that of the storage battery.
3. The composite energy storage-based ship integrated power system according to claim 2, wherein:
when the working environment automatic adjusting unit (44) judges that the current working environment is in an abnormal state, the working environment automatic adjusting unit (44) keeps the ventilation equipment or the window of the area where the composite energy storage device (2) is located in an open state; when judging that the current working environment is relieved of an abnormal state, the working environment automatic adjusting unit (44) controls ventilation equipment or a window of the area where the composite energy storage device (2) is located to be kept in a closed state.
4. The composite energy storage-based ship integrated power system according to claim 1, wherein:
the mounting frame (51) is provided with a longitudinal lifting frame (54) for driving the transverse storage frames (511) to mutually approach along the height direction of the mounting frame (51); the transverse storage racks (511) are provided with locking assemblies (55) the number of which is in one-to-one correspondence with the number of the storage boxes (52), and the locking assemblies (55) are used for locking the storage boxes (52) which move to the initial positions;
an unlocking switch (512) for controlling the unlocking state of the appointed locking component (55) is arranged on the side wall of the storage box (52) facing to the adjacent storage box (52).
5. The composite energy storage-based ship integrated power system according to claim 4, wherein:
a limiting piece (521) is arranged on the storage box (52) in a sliding manner, and a slot (513) for inserting a specified limiting piece (521) to position the storage box (52) is arranged on the transverse storage rack (511); the storage box (52) is also provided with a first spring (520) for pressing the limiting piece (521) into the appointed slot (513); when the storage box (52) moves to the initial position of the transverse storage rack (511), the limiting piece (521) is pressed into the designated slot (513) under the action of the elastic force of the first spring (520); the inner side wall of the slot (513) is provided with a guide inclined plane (5130) for guiding the limiting piece (521) to move in or out of the slot (513).
6. The composite energy storage-based ship integrated power system according to claim 5, wherein:
a chassis (56) for bearing a super capacitor and a storage battery is arranged in the storage box (52), and the super capacitor and the storage battery are fixedly arranged on the chassis (56); a first plug-in socket (523) is arranged on the inner side wall of the storage box (52), and a second plug-in socket (561) which is used for being mutually plug-in matched with the first plug-in socket (523) is arranged on the chassis (56); the first receptacle (523) is located on the second receptacle (561) slip path.
7. The composite energy storage-based ship integrated power system according to claim 6, wherein:
a limiting seat (562) positioned outside the storage box (52) is arranged on the chassis (56); a fixing assembly (57) is arranged between chassis trucks (56) distributed along the height direction of the mounting frame (51), and the fixing assembly (57) comprises a main sleeve (571) and a secondary sleeve (572) which are sleeved with each other; one end of the auxiliary sleeve (572) is arranged in the main sleeve (571) in a sliding manner; a second spring (573) connected with the auxiliary sleeve (572) is arranged in the main sleeve (571), and the second spring (573) is used for pressing the auxiliary sleeve (572) into the main sleeve (571);
the fixing assembly (57) sequentially penetrates through the limiting seat (562) along the height direction of the mounting frame (51);
the main sleeve (571) is provided with a first pressing plate (574) which is used for abutting against the outer side wall of the storage box (52), and the auxiliary sleeve (572) is provided with a second pressing plate (575) which is used for abutting against the outer side wall of the storage box (52).
8. The composite energy storage-based ship integrated power system according to claim 1, wherein:
A guide rod (514) is arranged on the mounting frame (51), and a protective cover plate (6) for covering the lower storage box (52) is arranged on the guide rod (514) in a sliding manner; a third spring (60) is sleeved on the guide rod (514), and the third spring (60) is used for pressing down the protective cover plate (6) in a direction approaching the storage box (52); pull ropes (61) are arranged on two sides of the protective cover plate (6), fixed pulleys (515) are rotatably arranged on the mounting frame (51), and the pull ropes (61) penetrate through the fixed pulleys (515) and are fixedly connected with the adjacent push plates (53);
the protection apron (6) both sides all are provided with expansion plate (62), expansion plate (62) slide along horizontal supporter (511) length direction, stay cord (61) and expansion plate (62) linkage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310194078.0A CN116094121B (en) | 2023-03-02 | 2023-03-02 | Composite energy storage-based ship comprehensive power system |
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| Application Number | Priority Date | Filing Date | Title |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110510095A (en) * | 2019-09-26 | 2019-11-29 | 重庆大学 | A kind of energy management system and its control method of hybrid power ship |
| CN111864136A (en) * | 2020-07-08 | 2020-10-30 | 中北大学 | Composite storage battery pack device with low-temperature starting and temperature adjusting functions and using method |
| CN111907680A (en) * | 2020-09-07 | 2020-11-10 | 锡瑞迪船用动力系统(上海)有限公司 | Energy efficiency control system and method for hybrid power ship |
| CN112583057A (en) * | 2020-12-03 | 2021-03-30 | 江苏科技大学 | Ship energy management control system based on light and diesel hybrid energy storage |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110510095A (en) * | 2019-09-26 | 2019-11-29 | 重庆大学 | A kind of energy management system and its control method of hybrid power ship |
| CN111864136A (en) * | 2020-07-08 | 2020-10-30 | 中北大学 | Composite storage battery pack device with low-temperature starting and temperature adjusting functions and using method |
| CN111907680A (en) * | 2020-09-07 | 2020-11-10 | 锡瑞迪船用动力系统(上海)有限公司 | Energy efficiency control system and method for hybrid power ship |
| CN112583057A (en) * | 2020-12-03 | 2021-03-30 | 江苏科技大学 | Ship energy management control system based on light and diesel hybrid energy storage |
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