CN109606600A - A kind of ship renewable energy hybrid power system - Google Patents
A kind of ship renewable energy hybrid power system Download PDFInfo
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- CN109606600A CN109606600A CN201910038739.4A CN201910038739A CN109606600A CN 109606600 A CN109606600 A CN 109606600A CN 201910038739 A CN201910038739 A CN 201910038739A CN 109606600 A CN109606600 A CN 109606600A
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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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- 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
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
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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
- B63H2021/003—Use of propulsion power plant or units on vessels the power plant using fuel cells for energy supply or accumulation, e.g. for buffering photovoltaic energy
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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
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
- B63H2021/171—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor making use of photovoltaic energy conversion, e.g. using solar panels
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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
- Y02T70/00—Maritime or waterways transport
- Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
- Y02T70/5218—Less carbon-intensive fuels, e.g. natural gas, biofuels
- Y02T70/5236—Renewable or hybrid-electric solutions
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Fuel Cell (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention relates to a kind of ship renewable energy hybrid power systems.Including solar-energy photo-voltaic cell, fuel cell, battery, super capacitor, proton exchange membrane water electrolyzer device, DC/AC inverter and permasyn morot；The solar-energy photo-voltaic cell connects proton exchange membrane water electrolyzer device, the solar-energy photo-voltaic cell, fuel cell also access DC bus through the first unidirectional boost converter, the second unidirectional boost converter respectively, the battery, super capacitor access DC bus through the first Bidirectional up-down die mould converter, the second Bidirectional up-down die mould converter respectively, the DC bus is connected through DC/AC inverter with permasyn morot, to drive ship to work normally；It further include a controller, to control the operating mode of whole system.The present invention uses renewable energy hybrid power, gets rid of the dependence to traditional fossil energy, provides the mixing energization schemes of complete renewable energy for ship's navigation.
Description
Technical field
The invention belongs to renewable energy technical field of hybrid power, and in particular to a kind of ship is mixed with renewable energy
Dynamical system.
Background technique
Nowadays on the one hand along with the increasingly exhausted of traditional fossil energy (coal, petroleum, natural gas etc.), another aspect face
Face the continuous deterioration of global environment.Therefore, unprecedentedly surging to the need awareness of green, energy-saving and environmental protection, renewable energy.It passes
Continuing on for the energy of system has arrived precarious degree to the pollution in river, sea area, shows according to related investigation, generation
Pollution at least 35% or more in boundary's marine environment derives from ship, and it is exactly greasy dirt that it is the most main, this is not only compromised
The diversity of living resources also produces threat for the life and health of the mankind.For the demand in this epoch, nearest decades
People have been devoted to solve problems by exploitation alternative energy source, and propose many solutions, such as battery or
Internal combustion engine combines the modes such as energy supply with battery, but the cruising ability of existing program ship is limited or can not thoroughly get rid of fossil
The energy.Because hydrogen fuel cell has many advantages, such as zero-emission and high-energy density, the main power source of vessel motion can be used as, but
It is since the dynamic response of fuel cell is poor, for the acute variation of operating condition, may result in power can not adapt to the need of operating condition
It asks；Super capacitor has power density higher and is swift in response, and can be very good the variation for adapting to operating condition, and battery has performance
The features such as stablizing, be safe and reliable, power density is high, energy density is low, therefore if battery and super capacitor are combined,
The mutation and fluctuation of ship operating condition in the process of running can be undertaken very well；Have illuminating area big for ship, illumination is direct
The features such as, solar-energy photo-voltaic cell is applied on ship, when power demand is high, can directly convert solar energy into electrical energy confession
Solar-energy photo-voltaic cell is connected by electricity when power demand is small with proton exchange membrane water electrolyzer device, be hydrolyzed prepare hydrogen and
Oxygen then can save mass energy as the fuel and spare oxygen of fuel cell for ship.Therefore the present invention is used with hydrogen
Fuel cell as main power supply device, solar-energy photo-voltaic cell as auxiliary power supply device, battery and super capacitor into
Row energy regenerating and power supplement, and electrolytic preparation hydrogen and oxygen are carried out using proton exchange membrane water electrolyzer device.
Summary of the invention
It is an object of the invention to renewable using fossil energy system and tradition during navigation for above-mentioned ship
The problem of energy resource system is driven and deficiency provide a kind of ship renewable energy hybrid power system.
To achieve the above object, the technical scheme is that a kind of ship renewable energy hybrid power system, packet
Include solar-energy photo-voltaic cell, fuel cell, battery, super capacitor, proton exchange membrane water electrolyzer device, DC/AC inverter
And permasyn morot；The solar-energy photo-voltaic cell connection proton exchange membrane water electrolyzer device, the solar-energy photo-voltaic cell,
Fuel cell also accesses DC bus, the storage through the first unidirectional boost converter, the second unidirectional boost converter respectively
Battery, super capacitor access DC bus through the first Bidirectional up-down die mould converter, the second Bidirectional up-down die mould converter respectively,
The DC bus is connected through DC/AC inverter with permasyn morot, to drive ship to work normally；It further include one
For controlling the controller of each module working condition, to control the operating mode of whole system.
In embodiments of the present invention, the output end of the proton exchange membrane water electrolyzer device also with hydrogen storage vessel, Oxygen storage container
The hydrogen supply side of connection, the hydrogen storage vessel and fuel cell connects.
In embodiments of the present invention, Intensity threshold is preset when environmental light intensity is greater than, and demand power is less than predetermined power threshold
When value, controller controls proton exchange membrane water electrolyzer device by solar-energy photo-voltaic cell and works, and generates hydrogen, oxygen, and pass through
Hydrogen storage vessel, Oxygen storage container storage, to provide fuel and spare oxygen for fuel cell.
In embodiments of the present invention, controller can be according to the flash-over characteristic of solar-energy photo-voltaic cell, to the first unidirectional liter
Die mould converter carries out duty cycle adjustment, controls the input current size of the first unidirectional boost converter, to realize to too
The control of positive energy the output power from photovoltaic cells.
In embodiments of the present invention, controller is capable of the flash-over characteristic of fuel cell, becomes to the second unidirectional booster type
Parallel operation carries out duty cycle adjustment, controls the input current size of the second unidirectional boost converter, to realize to fuel cell
The control of output power.
In embodiments of the present invention, controller can carry out duty cycle adjustment, tool to the first Bidirectional up-down die mould converter
Body: under boost mode, using the boost converter scheme control output voltage size of the first Bidirectional up-down die mould converter,
Power demand caused by stable voltage and supplement are mutated because of operating condition is provided for DC bus；Under decompression mode, using first pair
To the buck convertor scheme control charging voltage size of buck-boost type converter, stable charging electricity is provided for battery
Pressure.
In embodiments of the present invention, the battery is lithium battery.
In embodiments of the present invention, controller can carry out duty cycle adjustment, tool to the second Bidirectional up-down die mould converter
Body: under boost mode, using the boost converter scheme control output voltage size of the second Bidirectional up-down die mould converter,
Power demand caused by stable voltage and supplement are mutated because of operating condition is provided for DC bus；Under decompression mode, using second pair
To the buck convertor scheme control charging voltage size of buck-boost type converter, stable charging electricity is provided for super capacitor
Pressure.
In embodiments of the present invention, the working method of the system is as follows:
(1) it is directed to the utilization of solar energy, when power demand is greater than predetermined power threshold value, by solar-energy photo-voltaic cell by the sun
Electric energy can be converted into and carry out energy supply；When power demand is less than predetermined power threshold value, pass through solar energy using solar energy
Volt cell power generation carries out the hydrolysis of proton exchange membrane water electrolyzer device and prepares hydrogen, oxygen, and is stored into hydrogen storage vessel and storage oxygen respectively
Container, to provide fuel and spare oxygen for fuel cell；
(2) for battery and super capacitor, operating mode is judged according to its state-of-charge, when the state-of-charge of battery is low
In 80%, the state-of-charge of super capacitor is higher than 50% and system demand power carries out battery when being less than predetermined power threshold value
Charging, super capacitor maintain the output of specified busbar voltage and demand power；When battery state-of-charge be higher than 80%, it is super
The state-of-charge of capacitor lower than 50% and system demand power be less than predetermined power threshold value when, charge to super capacitor；
(3) it is directed to power source, the first, second unidirectional booster type is respectively adopted to solar-energy photo-voltaic cell, fuel cell and is become
Parallel operation controls the input current of the first, second unidirectional boost converter, specific fuel cell and solar photovoltaic
The flash-over characteristic in pond, it may be assumed that after battery determines, electric current, voltage and power have one-to-one relationship, for photovoltaic
Battery, fuel cell carry out duty cycle adjustment to the first, second unidirectional boost converter by controller, carry out first, the
The input current of two unidirectional boost converters controls, and can indirectly realize the control to output power；To battery and surpass
Grade capacitor takes the voltage of the first, second Bidirectional up-down die mould converter to control respectively, when demand power is greater than predetermined power threshold
When value, the side in battery or super capacitor is selected, it is double to the first or second by controller using step-up converter mode
Duty cycle adjustment is carried out to buck-boost type converter, stable busbar voltage is maintained, compensates the power demand of dynamical system, simultaneously
High current multiplying power, high-power, quick response flash-over characteristic can be carried out using battery and super capacitor, compensates dynamical system function
Rate demand；When demand power is less than predetermined power threshold value, to the side that battery and super capacitor wherein need to charge, use
Buck converter mode carries out duty cycle adjustment to first or second Bidirectional up-down die mould converter by controller, and control is filled
Piezoelectric voltage charges, to the side not charged, using step-up converter mode, by controller to the first or second
Bidirectional up-down die mould converter carries out duty cycle adjustment, and control bus voltage maintains specified busbar voltage
In embodiments of the present invention, the described first unidirectional boost converter, the second unidirectional boost converter, the first two-way liter
Buck convertor, the second Bidirectional up-down die mould converter are DC to DC converter.
Compared to the prior art, the invention has the following advantages:
1, using renewable energy hybrid power, the dependence to traditional fossil energy is got rid of, is provided completely for ship's navigation
Renewable energy mixing energization schemes；
2, the quick response supplied character for giving full play to battery and super capacitor meets power demand when operating condition mutation, more
Mend the deficiency of fuel cell and photovoltaic cell exoelectrical reaction time length；
3, according to the feature of ship illumination abundance, solar energy is made full use of, is on the one hand used to directly energize when power demand is big,
On the other hand it is used to carry out hydrogen manufacturing and oxygen processed when power demand is small, can be used as the fuel and spare oxygen of fuel cell；
4, hydrogen manufacturing is hydrolyzed in proton exchange membrane water electrolyzer device to apply on ship, compared with alkaline water electrolytic, sets system
Count more compact, current density is big, high conversion efficiency；
5, using characteristics such as the recyclable charge and discharge of battery and super capacitor, when energy when recycling Ship brake and energy supply
The extra energy.
Detailed description of the invention
Fig. 1: renewable hybrid power system overall structure figure.
Fig. 2: fuel cell-powered schematic diagram.
Fig. 3: supplying power for photovoltaic cell schematic diagram.
Fig. 4: battery confession/charging principle figure.
Fig. 5: super capacitor confession/charging principle figure.
Fig. 6: the renewable energy power demand and supply distribution analogous diagram of mode one.
Fig. 7: the charging voltage control effect analogous diagram of the battery buck converter mode of mode one.
Fig. 8: the super capacitor step-up converter mode control output busbar voltage analogous diagram of mode one.
Fig. 9: the unidirectional booster converter input current control effect figure of the photovoltaic cell of mode one.
Figure 10: the unidirectional booster converter input current control effect figure of the fuel cell of mode one.
Figure 11: the renewable energy power demand and supply distribution analogous diagram of mode two.
Figure 12: the charging voltage control effect analogous diagram of the super capacitor buck converter mode of mode two.
Figure 13: the battery step-up converter mode control output busbar voltage analogous diagram of mode two.
Figure 14: the unidirectional booster converter input current control effect figure of the photovoltaic cell of mode two.
Figure 15: the unidirectional booster converter input current control effect figure of the fuel cell of mode two.
Specific embodiment
With reference to the accompanying drawing, technical solution of the present invention is specifically described.
The present invention discloses a kind of ship renewable energy hybrid power system, and this field practitioner can use for reference above-mentioned
Content makes corresponding improvement on this basis, need it is hereby stated that, all similar substitutions and modifications relative to working people
It is it will be apparent that they are all considered as is included among this patent for member, and practitioner must not be in this patent content
On the basis of carry out content change or changes and combinations appropriate, the art of this patent is applied.
A kind of ship provided by the invention is specifically included that with renewable energy hybrid power system by fuel cell, solar energy
Lie prostrate battery, battery, super capacitor, proton exchange membrane water electrolyzer device, DC to DC converter, DC/AC inverter and forever
The composition such as magnetic-synchro motor and control system.
Within the system, specific embodiment is, as shown in Figure 1, solar-energy photo-voltaic cell and fuel cell are through unidirectional
Boost converter is in parallel with DC bus, fuel cell and super capacitor through Bidirectional up-down die mould converter and DC bus simultaneously
The mode of connection connects, and DC bus is connected through DC/AC inverter with permasyn morot again.Proton exchange membrane water electrolyzer
Device is in parallel with solar-energy photo-voltaic cell, carries out hydrogen manufacturing and oxygen processed, while the hydrogen of proton exchange membrane water electrolyzer device and oxygen output
End is connected with hydrogen storage vessel and Oxygen storage container, and hydrogen storage vessel is connected with fuel cell hydrogen input terminal again, and Oxygen storage container storage is standby
Use oxygen.A kind of ship chooses different power supply modes, needle in different operating conditions with renewable hybrid power system
Utilization to solar energy converts solar energy into electrical energy carry out energy by solar-energy photo-voltaic cell when power demand is big
Supply；When power demand is small, solar energy is subjected to proton exchange membrane water electrolyzer by generating electricity using solar-energy photo-voltaic cell
Device hydrolysis prepares hydrogen, oxygen, and hydrogen and oxygen are respectively connected to hydrogen storage vessel and Oxygen storage container, hydrogen storage vessel and fuel electricity
Pond hydrogen input terminal is connected, and as the fuel of fuel cell, Oxygen storage container stores spare oxygen.For battery and super electricity
Hold, operating mode is judged according to its state-of-charge, when battery state-of-charge be lower than 80%, the state-of-charge of super capacitor
It when higher than 50%, system demand power is not high, charges to battery, super capacitor maintains specified busbar voltage and demand function
The output of rate；Conversely, when the state-of-charge of battery is higher than 80%, the state-of-charge of super capacitor demand of system lower than 50%
When power is not high, charge to super capacitor.For the control method of power source, to fuel cell and photovoltaic
Battery controls the input current of unidirectional boost converter using unidirectional boost converter, and as shown in Figure 2 and Figure 3, the control is former
Reason is mainly the flash-over characteristic of fuel cell and solar-energy photo-voltaic cell, it may be assumed that after battery determines, electric current, voltage and function
Rate has one-to-one relationship, therefore for fuel cell, solar-energy photo-voltaic cell, unidirectional booster type is converted by controller
Device carries out duty cycle adjustment, carries out the input current control of unidirectional boost converter, so that it may indirectly realize to output work
The control of rate.It takes the voltage of Bidirectional up-down die mould converter to control battery (Fig. 4) and super capacitor (Fig. 5), works as demand
When power is unable to satisfy, the side in battery (Fig. 4) or super capacitor (Fig. 5) is selected, using step-up converter mode,
Duty cycle adjustment is carried out to Bidirectional up-down die mould converter by controller, stable busbar voltage is maintained, compensates dynamical system
Power demand, while it is special using battery and super capacitor can to carry out high current multiplying power, high-power, quick response electric discharge
Property, compensate dynamical system power demand；When demand power is smaller or energy regenerating, battery and super capacitor are wherein needed
The side to be charged carries out duty cycle adjustment to Bidirectional up-down die mould converter by controller using buck converter mode,
Charging voltage is controlled, is charged.To the side not charged, using step-up converter mode, by controller to two-way
Buck-boost type converter carries out duty cycle adjustment, and control bus voltage maintains specified busbar voltage.In control unit wherein
Point, important technological parameters are induction reactance, capacitive reactance, the parameter of duty cycle adjustment and the mould of the buck-boost type converter of one-way/two-way
The collocation of type compatibility.
For a kind of above-mentioned hybrid power system of renewable energy of verifying, does following mode and sets and emulated:
Mode one: fuel cell, photovoltaic cell and super capacitor are ship power supply, while to charge the battery, setting motor
Nominal operation busbar voltage be 700V.
Set operating condition: for ship in 0-2 seconds demand powers as 12.250kW, 2-4 seconds demand powers are 14kW, 4-6 seconds demands
Power is 16.333kW, wherein fuel cell whole process high-power output, and photovoltaic cell is as auxiliary output, and super capacitor is as function
Power swing when operating condition variation is supplemented and met to rate, and battery is in and is electrically charged state.
By by solar-energy photo-voltaic cell and fuel cell through unidirectional boost converter, battery in parallel with DC bus
It is connect through Bidirectional up-down die mould converter with the mode of DC bus parallel connection with super capacitor, DC bus is again through DC/AC
Inverter is connected with permasyn morot.Fuel cell, solar-energy photo-voltaic cell are controlled using unidirectional boost converter
The input current of unidirectional boost converter, carries out power output；The decompression of Bidirectional up-down die mould converter is used to battery
Converter scheme control charging voltage.Mother is controlled using the step-up converter mode of Bidirectional up-down die mould converter to super capacitor
Line voltage maintains specified busbar voltage.It is very good to the control effect of output power and operating voltage, as Fig. 6, Fig. 7,
Shown in Fig. 8, Fig. 9, Figure 10, output power, busbar voltage, charging voltage and the operating current of system in 0.2 second all into
Enter stable state, reach target value, wherein busbar voltage reaches rated value 700V, and power reaches 12.250kW.
Mode two: fuel cell, photovoltaic cell and battery are ship power supply, while being charged for super capacitor, setting electricity
The rated operational voltage of motivation is 700V.
Set operating condition: for ship in 0-2 seconds demand powers as 12.250kW, 2-4 seconds demand powers are 14kW, 4-6 seconds demands
Power is 16.333kW, wherein fuel cell whole process high-power output, and photovoltaic cell is as auxiliary output, and battery is as power
Supplement, meets power swing when operating condition variation, and super capacitor is in and is electrically charged state.
By by solar-energy photo-voltaic cell and fuel cell through unidirectional boost converter, battery in parallel with DC bus
It is connect through Bidirectional up-down die mould converter with the mode of DC bus parallel connection with super capacitor, DC bus is again through DC/AC
Inverter is connected with permasyn morot.Fuel cell, solar-energy photo-voltaic cell are controlled using unidirectional boost converter
The input current of unidirectional boost converter, carries out power output；The drop of Bidirectional up-down die mould converter is used to super capacitor
Buckling parallel operation scheme control charging voltage.Mother is controlled using the step-up converter mode of Bidirectional up-down die mould converter to battery
Line voltage maintains specified busbar voltage.It is very good to the control effect of output power and operating voltage, such as Figure 11, figure
12, shown in Figure 13, Figure 14, Figure 15, output power, busbar voltage, charging voltage and the operating current of system in 0.2 second all
Stable state is entered, has reached target value, wherein busbar voltage reaches rated value 700V, and power reaches 12.250kW.
The above are preferred embodiments of the present invention, all any changes made according to the technical solution of the present invention, and generated function is made
When with range without departing from technical solution of the present invention, all belong to the scope of protection of the present invention.
Claims (10)
1. a kind of ship renewable energy hybrid power system, which is characterized in that including solar-energy photo-voltaic cell, fuel electricity
Pond, battery, super capacitor, proton exchange membrane water electrolyzer device, DC/AC inverter and permasyn morot；It is described too
Positive energy photovoltaic cell connects proton exchange membrane water electrolyzer device, and the solar-energy photo-voltaic cell, fuel cell are also single through first respectively
DC bus is accessed to boost converter, the second unidirectional boost converter, the battery, super capacitor are respectively through first
Bidirectional up-down die mould converter, the second Bidirectional up-down die mould converter access DC bus, and the DC bus is through DC/AC
Inverter is connected with permasyn morot, to drive ship to work normally；It further include one for controlling each module working condition
Controller, to control the operating mode of whole system.
2. a kind of ship renewable energy hybrid power system according to claim 1, which is characterized in that the proton
The output end of exchange membrane water electrolyzer is also connect with hydrogen storage vessel, Oxygen storage container, the hydrogen of the hydrogen storage vessel and fuel cell
Supply side connection.
3. a kind of ship renewable energy hybrid power system according to claim 2, which is characterized in that when environment light
It is powerful in default Intensity threshold, and when demand power is less than predetermined power threshold value, controller passes through solar-energy photo-voltaic cell control
The work of proton exchange membrane water electrolyzer device generates hydrogen, oxygen, and is stored by hydrogen storage vessel, Oxygen storage container, for fuel cell
Fuel and spare oxygen are provided.
4. a kind of ship renewable energy hybrid power system according to claim 1, which is characterized in that controller energy
Enough flash-over characteristics according to solar-energy photo-voltaic cell carry out duty cycle adjustment, control first to the first unidirectional boost converter
The input current size of unidirectional boost converter, to realize the control to solar-energy photo-voltaic cell output power.
5. a kind of ship renewable energy hybrid power system according to claim 1, which is characterized in that controller energy
The flash-over characteristic of enough fuel cells carries out duty cycle adjustment to the second unidirectional boost converter, and control second unidirectionally rises
The input current size of die mould converter, to realize the control to fuel cell output power.
6. a kind of ship renewable energy hybrid power system according to claim 1, which is characterized in that controller energy
It is enough that duty cycle adjustment is carried out to the first Bidirectional up-down die mould converter, it is specific: under boost mode, using the first Bidirectional up-down pressure
The boost converter scheme control output voltage size of code converter provides stable voltage and supplement because of work for DC bus
Power demand caused by condition is mutated；Under decompression mode, using the buck convertor mode of the first Bidirectional up-down die mould converter
Charging voltage size is controlled, stable charging voltage is provided for battery.
7. a kind of ship renewable energy hybrid power system according to claim 1 or 6, which is characterized in that described
Battery is lithium battery.
8. a kind of ship renewable energy hybrid power system according to claim 1, which is characterized in that controller energy
It is enough that duty cycle adjustment is carried out to the second Bidirectional up-down die mould converter, it is specific: under boost mode, using the second Bidirectional up-down pressure
The boost converter scheme control output voltage size of code converter provides stable voltage and supplement because of work for DC bus
Power demand caused by condition is mutated；Under decompression mode, using the buck convertor mode of the second Bidirectional up-down die mould converter
Charging voltage size is controlled, stable charging voltage is provided for super capacitor.
9. a kind of ship renewable energy hybrid power system according to claim 1, which is characterized in that the system
Working method is as follows:
(1) it is directed to the utilization of solar energy, when power demand is greater than predetermined power threshold value, by solar-energy photo-voltaic cell by the sun
Electric energy can be converted into and carry out energy supply；When power demand is less than predetermined power threshold value, pass through solar energy using solar energy
Volt cell power generation carries out the hydrolysis of proton exchange membrane water electrolyzer device and prepares hydrogen, oxygen, and is stored into hydrogen storage vessel and storage oxygen respectively
Container, to provide fuel and spare oxygen for fuel cell；
(2) for battery and super capacitor, operating mode is judged according to its state-of-charge, when the state-of-charge of battery is low
In 80%, the state-of-charge of super capacitor is higher than 50% and system demand power carries out battery when being less than predetermined power threshold value
Charging, super capacitor maintain the output of specified busbar voltage and demand power；When battery state-of-charge be higher than 80%, it is super
The state-of-charge of capacitor lower than 50% and system demand power be less than predetermined power threshold value when, charge to super capacitor；
(3) it is directed to power source, the first, second unidirectional booster type is respectively adopted to solar-energy photo-voltaic cell, fuel cell and is become
Parallel operation controls the input current of the first, second unidirectional boost converter, specific fuel cell and solar photovoltaic
The flash-over characteristic in pond, it may be assumed that after battery determines, electric current, voltage and power have one-to-one relationship, for photovoltaic
Battery, fuel cell carry out duty cycle adjustment to the first, second unidirectional boost converter by controller, carry out first, the
The input current of two unidirectional boost converters controls, and can indirectly realize the control to output power；To battery and surpass
Grade capacitor takes the voltage of the first, second Bidirectional up-down die mould converter to control respectively, when demand power is greater than predetermined power threshold
When value, the side in battery or super capacitor is selected, it is double to the first or second by controller using step-up converter mode
Duty cycle adjustment is carried out to buck-boost type converter, stable busbar voltage is maintained, compensates the power demand of dynamical system, simultaneously
High current multiplying power, high-power, quick response flash-over characteristic can be carried out using battery and super capacitor, compensates dynamical system function
Rate demand；When demand power is less than predetermined power threshold value, to the side that battery and super capacitor wherein need to charge, use
Buck converter mode carries out duty cycle adjustment to first or second Bidirectional up-down die mould converter by controller, and control is filled
Piezoelectric voltage charges, to the side not charged, using step-up converter mode, by controller to the first or second
Bidirectional up-down die mould converter carries out duty cycle adjustment, and control bus voltage maintains specified busbar voltage.
10. a kind of ship renewable energy hybrid power system according to claim 1, which is characterized in that described
One unidirectional boost converter, the second unidirectional boost converter, the first Bidirectional up-down die mould converter, the second Bidirectional up-down pressure
Code converter is DC to DC converter.
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| CN201910038739.4A CN109606600A (en) | 2019-01-16 | 2019-01-16 | A kind of ship renewable energy hybrid power system |
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| CN201910038739.4A Pending CN109606600A (en) | 2019-01-16 | 2019-01-16 | A kind of ship renewable energy hybrid power system |
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| CN110001907A (en) * | 2019-05-20 | 2019-07-12 | 广西师范大学 | A kind of new energy lithium ion battery peculiar to vessel-zinc-air battery hybrid power system |
| CN110266040A (en) * | 2019-06-11 | 2019-09-20 | 华电电力科学研究院有限公司 | A kind of wind, light, Proton Exchange Membrane Fuel Cells are provided multiple forms of energy to complement each other hybrid power system and method |
| CN110289793A (en) * | 2019-07-26 | 2019-09-27 | 福州大学 | A kind of fuel cell-powered direct current either-rotation motor self-adaptation control method |
| CN110299722A (en) * | 2019-04-30 | 2019-10-01 | 南京工程学院 | A kind of hydrogen fuel cell stabilizes the control method of photovoltaic output-power fluctuation |
| CN110654520A (en) * | 2019-09-26 | 2020-01-07 | 哈尔滨工程大学 | Ship direct-current networking system adopting fuel cell and ship applying same |
| CN111817430A (en) * | 2020-07-30 | 2020-10-23 | 珠海格力电器股份有限公司 | Power supply system, fixed point data acquisition device and control method thereof |
| CN112104062A (en) * | 2020-08-10 | 2020-12-18 | 珠海格力电器股份有限公司 | Control device and method of ship power supply system and ship power supply system |
| CN112436500A (en) * | 2020-11-13 | 2021-03-02 | 成都通用整流电器研究所 | Direct current microgrid power generation, transmission and distribution system |
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| CN112436500A (en) * | 2020-11-13 | 2021-03-02 | 成都通用整流电器研究所 | Direct current microgrid power generation, transmission and distribution system |
| CN112436500B (en) * | 2020-11-13 | 2021-07-20 | 成都通用整流电器研究所 | Direct current microgrid power generation, transmission and distribution system |
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