CN107947315A - A kind of electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device - Google Patents
A kind of electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device Download PDFInfo
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- CN107947315A CN107947315A CN201711125021.6A CN201711125021A CN107947315A CN 107947315 A CN107947315 A CN 107947315A CN 201711125021 A CN201711125021 A CN 201711125021A CN 107947315 A CN107947315 A CN 107947315A
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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
- H02J7/34—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
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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
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
Abstract
The present invention discloses a kind of electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device, including busbar；Hydrothermal solution energy thermo-electric generation circuit, the electrical energy transportation of generation to the busbar；Batteries to store energy circuit, is linked on the busbar, provides the electric energy of stabilization for the load for being cooperateed with the hydrothermal solution energy thermo-electric generation circuit；Super capacitor, is directly parallel on the busbar, for suppressing the big ups and downs of the busbar voltage；Energy dissipating circuit is loaded, is parallel on the busbar, for consuming the electric energy on busbar；Whether it is filled based on the hydrothermal solution energy thermo-electric generation circuit, the electric energy of load energy dissipating circuit and storage battery, the management to whole electrical energy system is realized using power match control strategy and the MPPT control strategies based on super capacitor.The system can and loading condition unstable in generated output it is continually changing in the case of, realize that generator unit produces electricl energy the reasonable distribution between energy-storage units and load unit.
Description
Technical field
The invention belongs to field of power, and in particular to a kind of electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device
System.
Background technology
When two nodes of the closed circuit being made of two kinds of different thermoelectric material conductors have temperature ladder, closed circuit
In have electric current generation, this phenomenon is referred to as Seebeck effect.Based on this effect can made of thermoelectric generation film can profit
Thermo-electric generation is carried out with submarine hydrothermal solution.
The purpose of hydrothermal solution thermo-electric generation is to provide sustainable electric energy for submarine observation equipment, realizes self-powered long-term observation.
Due to the unsteady-state heat transfer feature of hydrothermal solution electricity generation system, generated output is caused to change often, and the electricity consumption of scope
Demand is also change, it is therefore desirable to corresponding electric energy management system is designed, for the energy that produces generator unit in energy storage
Reasonable distribution between unit and load unit.
The Chinese utility model patent application of Application No. 201120394061.2 discloses a kind of thermo-electric generation lithium battery
Charging system, within the system equipped with thermo-electric generation component, regulator circuit, super capacitor and lithium battery charging accessories；Voltage stabilizing electricity
The voltage input end on road is electrically connected with the voltage output end of thermo-electric generation component, and voltage output end and the lithium battery of regulator circuit fill
Electric accessory voltage input end is electrically connected, and the voltage output end of lithium battery charging accessories is the output terminal to charge to lithium battery；
Super capacitor positive plate is connected between temperature-difference power generation module voltage output end and regulator circuit voltage input end, super capacitor anode
Plate earthing.Be particularly suitable for field work, generated electricity using the Cooling and Heat Source temperature difference and be lithium battery charging.The system is suitable for load
More stable occasion, if but load mitigate or aggravate suddenly, without corresponding control strategy, it is impossible to fast and stable to negative
Duty power supply, and it is not suitable for seabed operation.
The Chinese invention patent application of Application No. 201610914762.1 discloses a kind of energy based on composite energy storage
Management and control optimization method, this method give super capacitor discharge and recharge using two-way DC/DC circuits.On the one hand this circuit structure adds
The complexity of circuit, on the other hand since super capacitor is not directly in parallel with busbar, cannot avoid busbar electric in time
The momentary fluctuation of pressure.
The content of the invention
The object of the present invention is to provide a kind of electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device, which can be
Generated output is unstable and loading condition it is continually changing in the case of, realize that generator unit is produced electricl energy in energy-storage units and negative
Reasonable distribution between carrier unit.
To achieve the above object, the technical solution of embodiment of the present invention offer is：
A kind of electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device, including：
Busbar；
Hydrothermal solution energy thermo-electric generation circuit, the electrical energy transportation that the hydrothermal solution energy thermo-electric generation circuit produces to the busbar；
Batteries to store energy circuit, the batteries to store energy circuit are linked on the busbar, for warm with hydrothermal solution energy
Poor electricity-generating circuit collaboration provides the electric energy of stabilization for the load；
Super capacitor, the super capacitor are directly parallel on the busbar, for suppressing the violent of the busbar voltage
Fluctuation；
Energy dissipating circuit is loaded, the energy dissipating circuit in parallel that loads is to the busbar, for consuming the electric energy on busbar；
Whether it is filled, is adopted based on the hydrothermal solution energy thermo-electric generation circuit, the electric energy of load energy dissipating circuit and storage battery
The management to whole electrical energy system is realized with power match control strategy and the MPPT control strategies based on super capacitor.
In above-mentioned technical proposal, super capacitor is directly connected on busbar, since super capacitor energy density is big, both ends
Voltage is not in transition, therefore, the fluctuation of busbar voltage can be reduced by super capacitor, absorb the power on busbar
Impact, reduces the discharge and recharge number of storage battery, extends the service life of storage battery.
Preferably, the hydrothermal solution energy thermo-electric generation circuit includes：
Buck circuits；
Hydrothermal solution energy temperature difference electricity generation device, the electric energy that the hydrothermal solution energy temperature difference electricity generation device will be sent by the buck circuits
It is transported to the busbar；
First power, voltage detecting circuit, first power, voltage detecting circuit are parallel to the buck main circuits
Output terminal, for detecting the power generation situation of the buck circuits.
Preferably, the batteries to store energy circuit includes：
Battery management circuit；
Storage battery, the storage battery access the busbar by the battery management circuit；
Second power, voltage detecting circuit, second power, voltage detecting circuit are parallel to the battery management electricity
The input terminal on road, for detecting whether the storage battery is filled.
Preferably, the load energy dissipating circuit includes：
Load, the load are directly parallel on the busbar；
3rd power, voltage detecting circuit, the 3rd power, voltage detecting circuit are parallel to the input of the load
End, for detecting the power consumption condition of the load.
It is lower for the moment by the power generation situation of the buck circuits, the control of the power consumption condition of the load in the present invention
The working status of whole system is carved, the voltage of the busbar is fluctuated in the range of load allows.
Preferably, described realized to whole using power match control strategy and the MPPT control strategies based on super capacitor
The management of a electrical energy system includes：
Set 4 voltage thresholds of the busbar：Vr1, Vr2, Vr3, Vr4, and Vr1 ＞ Vr2 ＞ Vr3 ＞ Vr4；
When the load is underloading, busbar voltage Vbus>During Vr1, judge whether the storage battery is full of, if so, using
Power match size reduction mode calculates the duty cycle D of the hydrothermal solution energy thermo-electric generation circuit, enables the hydrothermal solution thermo-electric generation circuit
Output power and the power match of the load, if it is not, being charged by the batteries to store energy circuit for the storage battery；
When the load down, busbar voltage Vbus meets Vr2<Vbus<During Vr1, using voltage retention mode, stop control
System, the duty cycle D of the hydrothermal solution energy thermo-electric generation circuit are remained unchanged；
When the load continues to aggravate, busbar voltage Vbus meets Vr3<Vbus<During Vr2, pattern is increased using power match
Calculate the duty cycle D of the hydrothermal solution energy thermo-electric generation circuit, enable the output power of the hydrothermal solution thermo-electric generation circuit with it is described
The power match of load；
When the load continues to aggravate, busbar voltage Vbus meets Vr4<Vbus<During Vr3, using based on super capacitor
MPPT control models, the hydrothermal solution energy thermo-electric generation circuit is using maximum power as system power supply；
When the load down to the limit, busbar voltage Vbus ＜ Vr4, the storage battery passes through the batteries to store energy
Circuit discharging, maintains the constant of busbar voltage, ensures that the load still is able to work normally.
Since the output power and bearing power of the hydrothermal solution energy thermo-electric generation circuit can not possibly be essentially equal, institute
It is mainly to enable the output work of the hydrothermal solution thermo-electric generation circuit that the power match size reduction mode stated and the power match, which increase pattern,
Rate is close to and above or less than bearing power, so as to reduce the power rush on busbar, maintains busbar voltage constant.
Preferably, the power match size reduction mode includes：
Measure generated output Pg, the bearing power Pd of the load energy dissipating circuit of the hydrothermal solution energy thermo-electric generation circuit；
As Pg ＞ Pd, P0=Pg, current duty cycle D0 are remembered, the duty cycle D0 is applied and subtracts disturbance, and measure and apply
After scrambling is dynamic, the generated output P1 and duty cycle D1 of the hydrothermal solution energy thermo-electric generation circuit；
As P1 ＜ P0, if D1 ＜ D0, the duty cycle D1 is applied and subtracts disturbance, otherwise, the duty cycle D1 is applied
Increase disturbance；
As P1 >=P0, if D1 ＜ D0, the duty cycle D1 is applied and increases disturbance, otherwise, the duty cycle D1 is applied
Subtract disturbance；
According to the persistently disturbance corresponding to duty cycle D1 applications of the size of the size of P1 and P0, D1 and D0, until P1 ＜ Pd are
Only.
Include preferably, the power match increases pattern：
Measure generated output Pg, the bearing power Pd of the load energy dissipating circuit of the hydrothermal solution energy thermo-electric generation circuit；
As Pg ＜ Pd, P0=Pg, current duty cycle D0 are remembered, the duty cycle D0 is applied and increases disturbance, and measures and applies
After scrambling is dynamic, the generated output P1 and duty cycle D1 of the hydrothermal solution energy thermo-electric generation circuit；
As P1 ＞ P0, if D1 ＞ D0, the duty cycle D1 is applied and increases disturbance, otherwise, the duty cycle D1 is applied
Subtract disturbance；
As P1≤P0, if D1 ＞ D0, the duty cycle D1 is applied and subtracts disturbance, otherwise, the duty cycle D1 is applied
Increase disturbance；
According to the persistently disturbance corresponding to duty cycle D1 applications of the size of the size of P1 and P0, D1 and D0, until P1 ＞ Pd are
Only.
Preferably, the MPPT control models based on super capacitor include：
For the buck circuits, to realize MPPT, it is necessary to make input voltage vin=Voc/2 of the buck circuits, its
In, Voc is open-circuit voltage；
Since the energy density of the super capacitor is big, its both end voltage is not in transition, when control time is at intervals of 1
During~2s, the output voltage Vout of the buck circuits is considered as fixed value, therefore, to realize MPPT, it is necessary to expire duty cycle D
Foot：
Compared with the prior art, the device have the advantages that being：
The present invention reduces the fluctuation of busbar voltage, absorbs busbar by the electric energy management strategy based on super capacitor
On power rush, reduce the discharge and recharge number of storage battery, extend the service life of storage battery；Power match control strategy
Not only it ensure that the normal operation of load, but also reduced the acute variation of the power rush and busbar voltage on busbar；Based on super
The MPPT control strategies of level capacitance, guarantee system obtain hydrothermal solution energy temperature difference electricity generation device and send to greatest extent under case of heavy load
Electric energy.
Brief description of the drawings
Fig. 1 is the structural representation of the electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device provided in an embodiment of the present invention
Figure；
Fig. 2 is the structure diagram of buck circuits provided in an embodiment of the present invention；
Fig. 3 is the structure diagram of voltage detecting circuit provided in an embodiment of the present invention；
Fig. 4 is the structure diagram of power-sensing circuit provided in an embodiment of the present invention；
Fig. 5 is the structure diagram of battery management circuit provided in an embodiment of the present invention；
Fig. 6 is the working state schematic representation of system under different busbar voltages provided in this embodiment；
Fig. 7 is MPPT control strategies principle schematic provided in this embodiment；
Fig. 8 is the flow chart of power match size reduction mode provided in this embodiment；
Fig. 9 is the flow chart that power match provided in this embodiment increases pattern.
Embodiment
In order to more specifically describe the present invention, below in conjunction with the accompanying drawings and embodiment is to technical scheme
It is described in detail.
Fig. 1 is the structural representation of the electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device provided in an embodiment of the present invention
Figure.
Referring to Fig. 1, the electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device provided in this embodiment includes：
Busbar 101；
By buck circuits 103 by the hydrothermal solution energy temperature difference electricity generation device (TEG) in the electrical energy transportation sent to busbar 101
102nd, power, the voltage detecting circuit 105 of 103 output terminal of buck circuits are parallel to；
By the way that battery management circuit 107 accesses the storage battery 106 of busbar 101, to be parallel to battery management circuit 107 defeated
Enter power, the voltage detecting circuit 108 at end；
The super capacitor 104 being directly parallel on busbar 101 and load 109, and it is parallel to the work(of 109 input terminals of load
Rate, voltage detecting circuit 110；
Whether power generation electric energy, the consumption electric energy of load 109 and the storage battery 106 exported based on buck circuits 103 is filled
It is full, the management to whole electrical energy system is realized using power match control strategy and the MPPT control strategies based on super capacitor.
In the present embodiment, super capacitor 104 is directly connected on busbar 101, due to 104 energy density of super capacitor
Greatly, both end voltage is not in transition, therefore, the fluctuation of 101 voltage of busbar can be reduced by super capacitor 104, is absorbed
Power rush on busbar 101, reduces the discharge and recharge number of storage battery 106, extends the service life of storage battery 106,
And power match control strategy not only ensure that the normal operation of load 109, but also reduce the power rush on busbar 101 and mother
The acute variation of 101 voltage of line；MPPT control strategies based on super capacitor, ensure system under case of heavy load to greatest extent
Obtain the electric energy that hydrothermal solution energy temperature difference electricity generation device is sent.The system can and loading condition unstable in generated output constantly change
In the case of, realize that the electric energy that hydrothermal solution energy temperature difference electricity generation device 102 produces is reasonable between energy storage battery 106 and load 109
Distribution.
In the present embodiment, hydrothermal solution energy temperature difference electricity generation device (TEG) 102 uses the TG12-4 type thermo-electric generations of Ma Luo companies
Piece.
Fig. 2 is the structure diagram of buck circuits provided in an embodiment of the present invention.It can be realized by varying duty cycle D
MPPT is controlled and power match control.
Fig. 3 is the structure diagram of voltage detecting circuit provided in an embodiment of the present invention.In the present embodiment, power, voltage
The voltage detecting circuit that detection circuit 105,108,110 includes uses circuit as shown in Figure 3.Referring to Fig. 3, the present embodiment
In, voltage detecting circuit is realized using TLV2211 operational amplifiers, and input voltage vin can be converted to suitable microcontroller
The voltage signal of collection.
Fig. 4 is the structure diagram of power-sensing circuit provided in an embodiment of the present invention.In the present embodiment, power, voltage
The power-sensing circuit that detection circuit 105,108,110 includes uses circuit as shown in Figure 4.Referring to Fig. 4, the present embodiment
In, power-sensing circuit realizes power detection using the MAX4211 chips of Maxim, and left side is input power (Powein),
Right side is output power (Poweout), which, which can proportionally be converted to power signal, is adapted to microcontroller collection
Voltage signal.
Fig. 5 is the structure diagram of battery management circuit provided in an embodiment of the present invention.Referring to Fig. 5, the present embodiment is adopted
Battery management is realized with the BQ24450 battery management chips of TI companies.The chip can control charging current and charging
Voltage, safely and effectively to charge the battery, so as to improve battery capacity and service life to greatest extent.
Fig. 6 is the working state schematic representation of system under different busbar voltages provided in this embodiment.The present embodiment passes through mother
Line voltage value carrys out the current working condition of decision-making system, and sets the working status of subsequent time.Referring to Fig. 6, the present embodiment carries
The course of work of whole electric energy management system supplied is：
Set 4 voltage thresholds of busbar 101：Vr1, Vr2, Vr3, Vr4, and Vr1 ＞ Vr2 ＞ Vr3 ＞ Vr4；
When load 109 is underloading, the voltage Vbus of busbar 101>During Vr1, judge whether storage battery 106 is full of, if so, adopting
The duty cycle D of hydrothermal solution energy thermo-electric generation circuit is calculated with power match size reduction mode, makes output power and the load of buck circuits 103
109 power match, if it is not, being charged by battery management circuit 107 for storage battery 108；
When load 109 aggravates, the voltage Vbus of busbar 101 meets Vr2<Vbus<During Vr1, using voltage retention mode, stop
Only control, the duty cycle D of buck circuits 103 is remained unchanged；
When load 109 continues to aggravate, the voltage Vbus of busbar 101 meets Vr3<Vbus<During Vr2, increased using power match
The duty cycle D of mode computation buck circuits 103, makes the output power and the power match of load 109 of buck circuits 103；
When load 109 continues to aggravate, the voltage Vbus of busbar 101 meets Vr4<Vbus<During Vr3, using based on super electricity
The MPPT control models of appearance, make buck circuits 103 using maximum power as system power supply；
When load 109 is exacerbated to the limit, during the voltage Vbus ＜ Vr4 of busbar 101, storage battery 108 passes through battery management
Circuit 107 discharges, maintain busbar 101 voltage it is constant, proof load 101 still is able to work normally.
Since the output power and bearing power of buck circuits 103 can not possibly be essentially equal, the power match
It is mainly the output power for making buck circuits 103 close to and above or less than load that size reduction mode and the power match, which increase pattern,
109 power, so as to reduce the power rush on busbar 101, maintains the voltage constant of busbar 101.
The principle for the control moulds of the MPPT based on super capacitor that the present embodiment proposes is as follows：Determined according to closed circuit ohm
Rule, when load input voltage Vin is the 1/2 of open-circuit voltage Voc, load obtains maximum power.As shown in fig. 7, for buck
Circuit, will realize maximal power tracing, it is necessary to make input voltage vin=Voc/2.
Since 104 energy density of super capacitor is big, both end voltage is not in transition, when shorter (this in control time interval
Embodiment takes 1s) when, Vout can be considered as fixed value, therefore realize maximal power tracing, it is necessary to meet duty cycle：
Fig. 8 is the flow chart of power match size reduction mode provided in this embodiment.The power proposed referring to Fig. 8, the present embodiment
Matching size reduction mode detailed process be：
The generated output Pg of S801, measurement buck circuit 103, the bearing power Pd for loading 109；
S802, judges whether Pg is more than Pd, if so, S803 is performed, if it is not, performing S815；
S803, makes P0=Pg, duty cycle D0；
S804, applies duty cycle D0 and subtracts disturbance, make duty cycle D=D0- δ D；
S805, the generated output P1, duty cycle D1 of the buck circuits 103 after measurement disturbance；
S806, judges whether P1 is less than P0, if so, S807 is performed, if it is not, performing S810；
S807, judges whether D1 is less than D0, if so, S808 is performed, if it is not, performing S809；
S808, D1=D1- δ D；
S809, D1=D1+ δ D；
S810, judges whether D1 is less than D0, if so, S811 is performed, if it is not, performing S812；
S811, D1=D1+ δ D；
S812, D1=D1- δ D；
S813, generated output Pg, the current duty cycle D of the buck circuits 103 after measurement disturbance, and P0=P1 is performed, P0
=Pg, D0=D1, D1=D；
S814, judges whether Pg is more than Pd, if so, S806 is performed, if it is not, performing S815；
S815, stops computing.
Fig. 9 is the flow chart that power match provided in this embodiment increases pattern.The power proposed referring to Fig. 9, the present embodiment
Matching size reduction mode detailed process be：
The generated output Pg of S901, measurement buck circuit 103, the bearing power Pd for loading 109；
S902, judges whether Pg is less than Pd, if so, S903 is performed, if it is not, performing S915；
S903, makes P0=Pg, duty cycle D0；
S904, applies duty cycle D0 and subtracts disturbance, make duty cycle D=D0+ δ D；
S905, the generated output P1, duty cycle D1 of the buck circuits 103 after measurement disturbance；
S906, judges whether P1 is more than P0, if so, S907 is performed, if it is not, performing S910；
S907, judges whether D1 is more than D0, if so, S908 is performed, if it is not, performing S909；
S908, D1=D1+ δ D；
S909, D1=D1- δ D；
S910, judges whether D1 is more than D0, if so, S911 is performed, if it is not, performing S912；
S911, D1=D1- δ D；
S912, D1=D1+ δ D；
S913, generated output Pg, the current duty cycle D of the buck circuits 103 after measurement disturbance, and P0=P1 is performed, P0
=Pg, D0=D1, D1=D；
S914, judges whether Pg is less than Pd, if so, S906 is performed, if it is not, performing S915；
S915, stops computing.
Technical scheme and beneficial effect is described in detail in above-described embodiment, Ying Li
Solution is the foregoing is merely presently most preferred embodiment of the invention, is not intended to limit the invention, all principle models in the present invention
Interior done any modification, supplementary, and equivalent replacement etc. are enclosed, should all be included in the protection scope of the present invention.
Claims (8)
- A kind of 1. electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device, it is characterised in that the system comprises：Busbar；Hydrothermal solution energy thermo-electric generation circuit, the electrical energy transportation that the hydrothermal solution energy thermo-electric generation circuit produces to the busbar；Batteries to store energy circuit, the batteries to store energy circuit are linked on the busbar, for being sent out with the hydrothermal solution energy temperature difference Circuit collaboration provides the electric energy of stabilization for the load；Super capacitor, the super capacitor are directly parallel on the busbar, for suppressing the big ups and downs of the busbar voltage；Energy dissipating circuit is loaded, the energy dissipating circuit in parallel that loads is to the busbar, for consuming the electric energy on busbar；Whether it is filled based on the hydrothermal solution energy thermo-electric generation circuit, the electric energy of load energy dissipating circuit and storage battery, using work( Rate match control strategy and management of the MPPT control strategies realization to whole electrical energy system based on super capacitor.
- 2. the electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device as claimed in claim 1, it is characterised in that the heat Liquid energy thermo-electric generation circuit includes：Buck circuits；Hydrothermal solution energy temperature difference electricity generation device, the electrical energy transportation that the hydrothermal solution energy temperature difference electricity generation device will be sent by the buck circuits To the busbar；First power, voltage detecting circuit, first power, voltage detecting circuit are parallel to the output of the buck main circuits End, for detecting the power generation situation of the buck circuits.
- 3. the electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device as claimed in claim 1, it is characterised in that the storage Battery energy storage circuit includes：Battery management circuit；Storage battery, the storage battery access the busbar by the battery management circuit；Second power, voltage detecting circuit, second power, voltage detecting circuit are parallel to the battery management circuit Input terminal, for detecting whether the storage battery is filled.
- 4. the electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device as claimed in claim 1, it is characterised in that described negative Carrying energy dissipating circuit includes：Load, the load are directly parallel on the busbar；3rd power, voltage detecting circuit, the 3rd power, voltage detecting circuit are parallel to the input terminal of the load, use In the power consumption condition for detecting the load.
- 5. the electric energy management system of the deep-sea hydrothermal energy temperature difference electricity generation device as described in Claims 1 to 4 is any, its feature exist In the pipe realized using power match control strategy and the MPPT control strategies based on super capacitor to whole electrical energy system Reason includes：Set 4 voltage thresholds of the busbar：Vr1, Vr2, Vr3, Vr4, and Vr1 ＞ Vr2 ＞ Vr3 ＞ Vr4；When the load is underloading, busbar voltage Vbus>During Vr1, judge whether the storage battery is full of, if so, using power The duty cycle D that size reduction mode calculates the hydrothermal solution energy thermo-electric generation circuit is matched, enables the output of the hydrothermal solution thermo-electric generation circuit Power and the power match of the load, if it is not, being charged by the batteries to store energy circuit for the storage battery；When the load down, busbar voltage Vbus meets Vr2<Vbus<During Vr1, using voltage retention mode, stop control, The duty cycle D of the hydrothermal solution energy thermo-electric generation circuit is remained unchanged；When the load continues to aggravate, busbar voltage Vbus meets Vr3<Vbus<During Vr2, mode computation is increased using power match The duty cycle D of the hydrothermal solution energy thermo-electric generation circuit, enables the output power of the hydrothermal solution thermo-electric generation circuit and the load Power match；When the load continues to aggravate, busbar voltage Vbus meets Vr4<Vbus<During Vr3, using the MPPT based on super capacitor Control model, the hydrothermal solution energy thermo-electric generation circuit is using maximum power as system power supply；When the load down to the limit, busbar voltage Vbus ＜ Vr4, the storage battery passes through the batteries to store energy circuit Electric discharge, maintains the constant of busbar voltage, ensures that the load still is able to work normally.
- 6. the electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device as claimed in claim 5, it is characterised in that the work( Rate matching size reduction mode includes：Measure generated output Pg, the bearing power Pd of the load energy dissipating circuit of the hydrothermal solution energy thermo-electric generation circuit；As Pg ＞ Pd, P0=Pg, current duty cycle D0 are remembered, the duty cycle D0 is applied and subtracts disturbance, and measures application and disturbs After dynamic, the generated output P1 and duty cycle D1 of the hydrothermal solution energy thermo-electric generation circuit；As P1 ＜ P0, if D1 ＜ D0, the duty cycle D1 is applied and subtracts disturbance, otherwise, increasing applied to the duty cycle D1 and is disturbed It is dynamic；As P1 >=P0, if D1 ＜ D0, the duty cycle D1 is applied and increases disturbance, otherwise, the duty cycle D1 applied to subtract and is disturbed It is dynamic；According to the persistently disturbance corresponding to duty cycle D1 applications of the size of the size of P1 and P0, D1 and D0, untill P1 ＜ Pd.
- 7. the electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device as claimed in claim 5, it is characterised in that the work( Rate matching increasing pattern includes：Measure generated output Pg, the bearing power Pd of the load energy dissipating circuit of the hydrothermal solution energy thermo-electric generation circuit；As Pg ＜ Pd, P0=Pg, current duty cycle D0 are remembered, the duty cycle D0 is applied and increases disturbance, and measures application and disturbs After dynamic, the generated output P1 and duty cycle D1 of the hydrothermal solution energy thermo-electric generation circuit；As P1 ＞ P0, if D1 ＞ D0, the duty cycle D1 is applied and increases disturbance, otherwise, the duty cycle D1 applied to subtract and is disturbed It is dynamic；As P1≤P0, if D1 ＞ D0, the duty cycle D1 is applied and subtracts disturbance, otherwise, increasing applied to the duty cycle D1 and is disturbed It is dynamic；According to the persistently disturbance corresponding to duty cycle D1 applications of the size of the size of P1 and P0, D1 and D0, untill P1 ＞ Pd.
- 8. the electric energy management system of deep-sea hydrothermal energy temperature difference electricity generation device as claimed in claim 5, it is characterised in that the base Include in the MPPT control models of super capacitor：For the buck circuits, to realize MPPT, it is necessary to make input voltage vin=Voc/2 of the buck circuits, wherein, Voc is open-circuit voltage；Since the energy density of the super capacitor is big, its both end voltage is not in transition, when control time is at intervals of 1~2s When, the output voltage Vout of the buck circuits is considered as fixed value, therefore, to realize MPPT, it is necessary to meet duty cycle D：<mrow> <mi>D</mi> <mo>=</mo> <mfrac> <mrow> <mi>V</mi> <mi>o</mi> <mi>u</mi> <mi>t</mi> </mrow> <mrow> <mi>V</mi> <mi>i</mi> <mi>n</mi> </mrow> </mfrac> <mo>=</mo> <mfrac> <mrow> <mi>V</mi> <mi>o</mi> <mi>u</mi> <mi>t</mi> </mrow> <mrow> <mi>V</mi> <mi>o</mi> <mi>c</mi> <mo>/</mo> <mn>2</mn> </mrow> </mfrac> <mo>.</mo> </mrow>
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| CN110098648A (en) * | 2019-04-24 | 2019-08-06 | 青岛海洋科学与技术国家实验室发展中心 | Energy management system for Oceanic View sounding buoy |
| CN110098626A (en) * | 2019-06-14 | 2019-08-06 | 北方民族大学 | One kind is based on thermo-electric generation and modular powersupply system and its operation method |
| CN110336463A (en) * | 2019-07-05 | 2019-10-15 | 宁波大学 | A kind of temperature-difference thermoelectric can and luminous energy merge Acquisition Circuit |
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