CN105162236A - Composite energy power distribution system - Google Patents
Composite energy power distribution system Download PDFInfo
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- CN105162236A CN105162236A CN201510627138.9A CN201510627138A CN105162236A CN 105162236 A CN105162236 A CN 105162236A CN 201510627138 A CN201510627138 A CN 201510627138A CN 105162236 A CN105162236 A CN 105162236A
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Abstract
The invention discloses a composite energy power distribution system, comprising a composite energy and a control device. The composite energy consists of a lithium battery group and a super capacitor module; the control device consists of a control unit, a first DC/DC converter and a second DC/DC converter; the lithium battery group is connected to the first DC/DC converter; the super capacitor module is connected to the second DC/DC converter; the first DC/DC converter is connected to the DC/DC converter and then both the first DC/DC converter and the second DC/DC converter are connected to a load; a control unit is connected to the lithium battery group, the super capacitor module, the first DC/DC converter, the second DC/DC converter and the load through a CAN communication network; the control unit obtains the power requirement of the load, the state data of the first DC/DC converter, the state data of the second DC/DC converter and the state data of the composite energy through the CAN communication network; the power distribution that is respectively born by the lithium battery group and the super capacitor module is calculated; and the power which is respectively born by the corresponding lithium battery group and the super capacitor module is controlled.
Description
Technical field
The present invention relates to compound energy administrative skill, particularly relate to a kind of compound energy power distribution system.
Background technology
Existing compound energy management system, is all generally based on simple in parallel, and controls break-make by some electronic switches, thus reach the control of compound energy.Such compound energy system can not regulate and control super capacitor and and lithium battery between power division, can not make full use of super capacitor with and the mutual supplement with each other's advantages characteristic of lithium battery form one more efficiently, more practical energy management system.
It is 203456930U that State Intellectual Property Office of the People's Republic of China discloses publication number on February 26th, 2014, and denomination of invention is the patent application of compound energy system.This compound energy system is made up of compound energy and control system, lithium battery group and the ultracapacitor module of compound energy are connected in parallel by some electronic switches, and then control system controls the input and output of both energy by controlling electronic switch break-make.In this patent application, the lithium battery group of compound energy wants consistent with ultracapacitor module operating voltage, because both characteristics are different, easily causes both voltage deviations, affects the life-span; And can not carry out power division, efficiency cannot improve, and can increase the loss of energy; In addition, super capacitor utilizes insufficient, and electronic devices and components are many, complex structure.
In prior art, there is the problems such as power density is low, cycle life is limited, poor performance at low temperatures in single battery power always.Over 10 years, super capacitor prices 99%, battery decline 30%-40%.In addition, there is power and cannot distribute in the compound energy system of prior art, and high power density and the repid discharge performance of super capacitor utilize insufficient, and battery pack can not be protected fully, and the problems such as complex structure.For the problems referred to above, the invention provides the compound energy management system that a kind of controlled power distributes.
As shown in Figure 1, the embodiment of the present invention provides a kind of compound energy power distribution system, described compound energy power distribution system comprises: compound energy and control device, compound energy is made up of lithium battery group and ultracapacitor module, and control device is made up of control unit, a DC/DC transducer and the 2nd DC/DC transducer.
As shown in Figure 1, lithium battery group connects a DC/DC transducer, and ultracapacitor module connects the 2nd DC/DC transducer, and a DC/DC transducer is connected to a load after being connected with the 2nd DC/DC transducer jointly.One DC/DC transducer can be different from the model of the 2nd DC/DC transducer, and concrete model can be determined according to the voltage of the voltage of connected compound energy (ultracapacitor module or lithium battery group) and load.Lithium battery group, ultracapacitor module, a DC/DC transducer, between the 2nd DC/DC transducer and load, be connected to signal wiring.
Lithium battery group in compound energy is connected by DC/DC transducer with ultracapacitor module, can be avoided lithium battery group be connected directly between with ultracapacitor module together with and affect useful life.
Control unit is connected with lithium battery group, ultracapacitor module, a DC/DC transducer, the 2nd DC/DC transducer and load respectively by CAN communication network.Control unit can be CPU, MCU, FPGA etc., and the present invention is not as limit.
Summary of the invention
The invention provides a kind of compound energy power distribution system; to realize the precise controlling to lithium battery group and ultracapacitor module power division, the normal work of protection lithium battery group and ultracapacitor module, increases work efficiency; Loss reducing, improves useful life.
To achieve these goals, embodiments provide a kind of compound energy power distribution system, described compound energy power distribution system comprises: compound energy and control device; Described compound energy is made up of lithium battery group and ultracapacitor module, and described control device is made up of control unit, a DC/DC transducer and the 2nd DC/DC transducer; Wherein,
Described lithium battery group connects a described DC/DC transducer, and described ultracapacitor module connects described 2nd DC/DC transducer, is jointly connected to a load after a described DC/DC transducer is connected with the 2nd DC/DC transducer; Described control unit is connected with lithium battery group, ultracapacitor module, a described DC/DC transducer, the 2nd DC/DC transducer and described load respectively by CAN communication network;
Described control unit is by the power demand of load described in CAN communication Network Capture, the status data of the one DC/DC transducer, the status data of the 2nd DC/DC transducer and the status data of compound energy, according to the power demand of described load, the status data of the one DC/DC transducer, the status data of the 2nd DC/DC transducer and the status data of compound energy calculate the power division that described lithium battery group and ultracapacitor module need to bear separately, then corresponding power is exported respectively according to the described power division described DC/DC transducer of control and the 2nd DC/DC transducer, control described lithium battery group and ultracapacitor module bears corresponding power separately.
In one embodiment, when described compound energy is in discharge mode, and load demand power one timing, described control unit controls described ultracapacitor module and lithium battery group is discharged with the first discharge power and the second discharge power respectively; Wherein said first discharge power is greater than described second discharge power, and described first discharge power and described second discharge power sum equal described load demand power.
In one embodiment, when the state-of-charge of described ultracapacitor module is lower than one first electric discharge set point, and the state-of-charge of described lithium battery group be not less than one second electric discharge set point time, described control unit controls described ultracapacitor module and reduces discharge power, and controls described lithium battery group increase discharge power.
In one embodiment, when the state-of-charge of described lithium battery group is lower than one second electric discharge set point, and the state-of-charge of described ultracapacitor module be not less than one first electric discharge set point time, described control unit controls described ultracapacitor module and increases discharge power, and controls described lithium battery group reduction discharge power.
In one embodiment, when the state-of-charge of described ultracapacitor module is lower than one first electric discharge set point, and when the state-of-charge of described lithium battery group is lower than one second electric discharge set point, described control unit controls described ultracapacitor module and lithium battery group reduces discharge power respectively.
In one embodiment, when described compound energy is in charge mode, and load demand power one timing, described control unit controls described ultracapacitor module and lithium battery group is charged with the first charge power and the second charge power respectively; Wherein said first charge power is greater than described second charge power.
In one embodiment, when the state-of-charge of described ultracapacitor module is higher than one first charging set point, and the state-of-charge of described lithium battery group not higher than one second charging set point time, described control unit controls described ultracapacitor module and reduces charge power, and controls described lithium battery group increase charge power.
In one embodiment, when the state-of-charge of described lithium battery group is higher than one second charging set point, and the state-of-charge of described ultracapacitor module not higher than one first charging set point time, described control unit controls described ultracapacitor module and increases charge power, and controls described lithium battery group reduction charge power.
In one embodiment, when the state-of-charge of described ultracapacitor module is higher than one first charging set point, and when the state-of-charge of described lithium battery group is higher than one second charging set point, described control unit controls described ultracapacitor module and lithium battery group reduces charge power respectively.
In one embodiment, when described load is in the free time, when the state-of-charge of described ultracapacitor module presets lowest critical value lower than one first, described control unit controls described lithium battery group and charges to described ultracapacitor module.
In one embodiment, when described load is in the free time, when described ultracapacitor module state-of-charge higher than one first preset the highest critical value time, described control unit controls described ultracapacitor module and charges to described lithium battery group.
In one embodiment, when described load is in the free time, when the state-of-charge of described lithium battery group presets lowest critical value lower than one second, described control unit controls described ultracapacitor module and charges to described lithium battery group.
In one embodiment, when described load is in the free time, when described lithium battery group state-of-charge higher than one second preset the highest critical value time, control unit controls described lithium battery group and charges to described ultracapacitor module.
The beneficial effect of the embodiment of the present invention is:
Lithium battery group in compound energy is connected by DC/DC transducer with ultracapacitor module, can be avoided lithium battery group be connected directly between with ultracapacitor module together with and affect useful life.
According to the different demands of different composite energy power distribution system, the lithium battery group of different electric pressure of can arranging in pairs or groups and ultracapacitor module, thus adapt to operational environments different separately.
In the discharge mode of compound energy, in different situations the discharge power of ultracapacitor module and lithium battery group discharge power are regulated and controled, the repid discharge performance of ultracapacitor module can be made full use of, and protect compound energy, avoid overdischarge.
In the charge mode of compound energy, in different situations the charge power of ultracapacitor module and lithium battery group charge power are regulated and controled, the rapid charge characteristic of ultracapacitor module can be made full use of, and protect compound energy, avoid overcharge.
Control unit preferentially distributes to ultracapacitor module by high-power, thus utilizes the high power density of ultracapacitor module, improves overall operating efficiency, Loss reducing.And big current can be avoided the impact of lithium battery group, thus reach protection compound energy, improve the object in useful life.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the compound energy power distribution system of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
It should be noted that in specification and repeatedly occur the statement such as " first ", " second ", be only the term that difference is different, be not intended to limit the order between different term.
During concrete enforcement, the lithium battery group in compound energy and the electric pressure of ultracapacitor module can be different, and lithium battery group and ultracapacitor module separately voltage can carry out free collocation according to the capacity needed separately, and voltage adjustable extent is wider.According to the different demands of different composite energy power distribution system, the lithium battery group of different electric pressure of can arranging in pairs or groups and ultracapacitor module, thus adapt to operational environments different separately.
Control unit can obtain power demand, the status data of a DC/DC transducer, the information such as the status data of the 2nd DC/DC transducer and the status data of compound energy of load by CAN communication network.According to the status data of the power demand of load, a DC/DC transducer, the status data of the 2nd DC/DC transducer and the status data of compound energy, control unit can calculate the power division that lithium battery group and ultracapacitor module need to bear separately, then control a DC/DC transducer and the 2nd DC/DC transducer according to power division and export corresponding power respectively, and then control lithium battery group and ultracapacitor module bears corresponding power separately.In other words, according to the status data of the power demand of load, a DC/DC transducer, the status data of the 2nd DC/DC transducer and the status data of compound energy, control unit can generate the power division instruction that lithium battery group and ultracapacitor module need to bear separately, control a DC/DC transducer and the 2nd DC/DC transducer by this power division instruction and export corresponding power respectively, and then control lithium battery group and ultracapacitor module bears corresponding power separately.
Load of the present invention, can be automobile, its power demand can be conjestured, and rule of thumb determines.Whether overheated etc. the status data of the one DC/DC transducer and the 2nd DC/DC transducer can comprise whether fault.In compound energy, the status data of lithium battery group and ultracapacitor module comprises the state-of-charge etc. of lithium battery group and ultracapacitor module, and the present invention is not as limit.
Under different working modes, control unit control strategy is different, and different working modes comprises the discharge mode of compound energy, the charge mode of compound energy and load idle pulley.Charge-discharge electric power when this control unit can work under various different mode to compound energy reasonably distributes and each component working monitoring state to compound energy system.Specifically describe control unit below under different working modes to the control of a DC/DC transducer, the 2nd DC/DC transducer, lithium battery group and ultracapacitor module and monitoring situation.
The discharge mode of compound energy:
The first situation: when compound energy is in discharge mode, and load demand power one timing, control unit controls ultracapacitor module and discharges with the first discharge power, controls lithium battery group and discharges with the second discharge power; Wherein the first discharge power is greater than the second discharge power, and the first discharge power and the second discharge power sum equal load demand power.
First discharge power is greater than the second discharge power, and control unit preferentially distributes to ultracapacitor module by high-power, thus utilizes the high power density of ultracapacitor module, improves overall operating efficiency, Loss reducing.And big current can be avoided the impact of lithium battery group, thus reach protection compound energy, improve the object in useful life.
Illustrate, such as, load demand power is 1, and the power output that control unit can control ultracapacitor module is 70% of load demand power, and the power output controlling lithium battery group is 30% of load demand power.
It should be noted that, in this first situation, the state-of-charge of ultracapacitor module needs to be not less than one first electric discharge set point, and the state-of-charge of lithium battery group needs to be not less than one second electric discharge set point.In one embodiment, the dump energy that this first electric discharge set point represents ultracapacitor module is the dump energy that the 40%, second electric discharge set point represents lithium battery group is 30%.
Under compound energy is in discharge mode, control unit periodically can obtain the work state-of-charge of lithium battery group and ultracapacitor module.
The second situation: when control unit knows that the state-of-charge of ultracapacitor module is lower than above-mentioned first electric discharge set point, and the state-of-charge of lithium battery group be not less than above-mentioned second electric discharge set point time, control unit can control ultracapacitor module and reduce discharge power, and controls lithium battery group increase discharge power.Such as, the discharge power controlling ultracapacitor module is reduced to 60%, and lithium battery group discharge power is increased to 40% or 30%, and the present invention is not as limit.Now, the discharge power of ultracapacitor module and lithium battery group increase discharge power sum and are less than or equal to load demand power.
The third situation: when the state-of-charge of described lithium battery group is lower than above-mentioned second electric discharge set point, and the state-of-charge of described ultracapacitor module be not less than above-mentioned first electric discharge set point time, control unit can control ultracapacitor module and increase discharge power, and controls lithium battery group reduction discharge power.Such as, the discharge power controlling ultracapacitor module is increased to 80%, and lithium battery group discharge power is reduced to 20% or 10%, and the present invention is not as limit.Now, the discharge power of ultracapacitor module and lithium battery group increase discharge power sum and are less than or equal to load demand power.
4th kind of situation: when the state-of-charge of ultracapacitor module is lower than above-mentioned first electric discharge set point, and when the state-of-charge of lithium battery group is lower than above-mentioned second electric discharge set point, control unit can control ultracapacitor module and lithium battery group reduces discharge power respectively.Such as, the discharge power controlling ultracapacitor module is reduced to 60%, and lithium battery group discharge power is reduced to 20%, and the present invention is not as limit.Now, the discharge power of ultracapacitor module and lithium battery group increase discharge power sum and are less than load demand power.
In the discharge mode of above-mentioned compound energy; increase discharge power to the discharge power of ultracapacitor module and lithium battery group in different situations to regulate and control; the repid discharge performance of ultracapacitor module can be made full use of, and protect compound energy, avoid overdischarge.
The charge mode of compound energy:
The first situation: when described compound energy is in charge mode, and load demand power one timing, control unit can control ultracapacitor module and lithium battery group is charged with the first charge power and the second charge power respectively; Wherein the first charge power is greater than described second charge power, and the first charge power and the second charge power sum equal load demand power.
First charge power is greater than the second charge power, and control unit preferentially distributes to ultracapacitor module by high-power, thus utilizes the high power density of ultracapacitor module, improves overall operating efficiency, Loss reducing.And big current can be avoided the impact of lithium battery group, thus reach protection compound energy, improve the object in useful life.
Illustrate, such as, load demand power is 1, and the charge power that control unit can control ultracapacitor module is 70% of load demand power, and the charge power controlling lithium battery group is 30% of load demand power, and the present invention is not as limit.
It should be noted that, in this first situation, the state-of-charge of ultracapacitor module needs to be not less than one first charging set point, and the state-of-charge of lithium battery group needs to be not less than one second charging set point.In one embodiment, the dump energy that this first charging set point represents ultracapacitor module is the dump energy that the 80%, second charging set point represents lithium battery group is 80%, and the present invention is not as limit.
Under compound energy is in charge mode, control unit periodically can obtain the work state-of-charge of lithium battery group and ultracapacitor module.
The second situation: when control unit knows that the state-of-charge of ultracapacitor module is higher than above-mentioned first charging set point, and the state-of-charge of described lithium battery group not higher than above-mentioned second charging set point time, control unit can control ultracapacitor module and reduce charge power, and controls lithium battery group increase charge power.Such as, the charge power that control unit can control ultracapacitor module is 60%, and to control lithium battery group charge power be 40% or 35%, and the present invention is not as limit.Now, the charge power of ultracapacitor module and lithium battery group increase charge power sum and are less than or equal to load demand power.
The third situation: when the state-of-charge of lithium battery group is higher than above-mentioned second charging set point, and the state-of-charge of ultracapacitor module not higher than above-mentioned first charging set point time, control unit can control ultracapacitor module and increase charge power, and controls lithium battery group reduction charge power.Such as, the charge power controlling ultracapacitor module is increased to 75%, and lithium battery group charge power is reduced to 20% or 25%, and the present invention is not as limit.Now, the charge power of ultracapacitor module and lithium battery group increase charge power sum and are less than or equal to load demand power.
4th kind of situation: when the state-of-charge of ultracapacitor module is higher than above-mentioned first charging set point, and when the state-of-charge of lithium battery group is higher than above-mentioned second charging set point, control unit can control ultracapacitor module and lithium battery group reduces charge power respectively.Such as, the charge power controlling ultracapacitor module is reduced to 60%, and lithium battery group charge power is reduced to 20%, and the present invention is not as limit.Now, the charge power of ultracapacitor module and lithium battery group increase charge power sum and are less than load demand power.
In the charge mode of above-mentioned compound energy; increase charge power to the charge power of ultracapacitor module and lithium battery group in different situations to regulate and control; the rapid charge characteristic of ultracapacitor module can be made full use of, and protect compound energy, avoid overcharge.
Load idle pulley:
The first situation: when load is in the free time, if the state-of-charge of ultracapacitor module is lower than (state-of-charge of ultracapacitor module is too low) during one first default lowest critical value, control unit can control lithium battery group and charge to ultracapacitor module.In one embodiment, this first default lowest critical value can be set to 20%, and the present invention is not as limit.
The second situation: when load is in the free time, when ultracapacitor module state-of-charge higher than one first preset the highest critical value time, control unit can control ultracapacitor module and charge to lithium battery group.In one embodiment, this first default lowest critical value can be set to 90%, and the present invention is not as limit.
The third situation: when load is in the free time, when the state-of-charge of lithium battery group presets lowest critical value lower than one second, control unit can control ultracapacitor module and charge to lithium battery group.In one embodiment, this second default lowest critical value can be set to 15%, and the present invention is not as limit.
4th kind of situation: when load is in the free time, when lithium battery group state-of-charge higher than one second preset the highest critical value time, control unit can control lithium battery group and charge to ultracapacitor module.In one embodiment, this second default lowest critical value can be set to 85%, and the present invention is not as limit.
Present invention utilizes the low temperature properties of super capacitor, high power density, overlength recycle the inferior position that the advantages such as number of times remove to make up lithium battery, define one more efficient, the compound energy management system of more environmental protection.
Compound energy power distribution system of the present invention can be used for the occasions such as electric bus, electrocar, energy storage, also can be used for improving existing fuel vehicle startability and improving fuel economy.Explicitly point out in country's " energy-conservation with new-energy automobile industrial development planning " " with pure electric drive for new-energy automobile develop and auto industry makes the transition main strategic orientation; current emphasis propelling pure electric automobile and plug-in hybrid-power automobile industrialization; popularize non-plug-in hybrid-power automobile, energy-saving IC engine automobile, lifting China automobile industry overall technology level.By 2015, pure electric automobile and plug-in hybrid-power automobile add up volume of production and marketing strove reaching 500,000; To the year two thousand twenty, pure electric automobile and plug-in hybrid-power automobile production capacity reach 2,000,000, add up volume of production and marketing more than 5,000,000, fuel cell car, automobile-used hydrogen energy source industry and international synchronized development ".In addition, point out that the market capacity of the year two thousand twenty BMS will reach 36,000,000,000 in " 2013-2018 China's battery management system (BMS) market conditions situation and development prospect research report ".As can be seen here, electric automobile energy administers upon an estate and has a extensive future, desirable.Enforcement of the present invention meets Policy Demand, utilizes advanced energy mix administrative skill, will form R&D mode and the industrialization system of regulation and standardization gradually at electric automobile energy management domain, and large-scale promotion application.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Apply specific embodiment in the present invention to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (13)
1. a compound energy power distribution system, is characterized in that, described compound energy power distribution system comprises: compound energy and control device; Described compound energy is made up of lithium battery group and ultracapacitor module, and described control device is made up of control unit, a DC/DC transducer and the 2nd DC/DC transducer; Wherein,
Described lithium battery group connects a described DC/DC transducer, and described ultracapacitor module connects described 2nd DC/DC transducer, is jointly connected to a load after a described DC/DC transducer is connected with the 2nd DC/DC transducer; Described control unit is connected with lithium battery group, ultracapacitor module, a described DC/DC transducer, the 2nd DC/DC transducer and described load respectively by CAN communication network;
Described control unit is by the power demand of load described in CAN communication Network Capture, the status data of the one DC/DC transducer, the status data of the 2nd DC/DC transducer and the status data of compound energy, according to the power demand of described load, the status data of the one DC/DC transducer, the status data of the 2nd DC/DC transducer and the status data of compound energy calculate the power division that described lithium battery group and ultracapacitor module need to bear separately, then corresponding power is exported respectively according to the described power division described DC/DC transducer of control and the 2nd DC/DC transducer, control described lithium battery group and ultracapacitor module bears corresponding power separately.
2. compound energy power distribution system according to claim 1, it is characterized in that, when described compound energy is in discharge mode, and load demand power one timing, described control unit controls described ultracapacitor module and lithium battery group is discharged with the first discharge power and the second discharge power respectively; Wherein said first discharge power is greater than described second discharge power, and described first discharge power and described second discharge power sum equal described load demand power.
3. compound energy power distribution system according to claim 2, it is characterized in that, when the state-of-charge of described ultracapacitor module is lower than one first electric discharge set point, and the state-of-charge of described lithium battery group be not less than one second electric discharge set point time, described control unit controls described ultracapacitor module and reduces discharge power, and controls described lithium battery group increase discharge power.
4. compound energy power distribution system according to claim 2, it is characterized in that, when the state-of-charge of described lithium battery group is lower than one second electric discharge set point, and the state-of-charge of described ultracapacitor module be not less than one first electric discharge set point time, described control unit controls described ultracapacitor module and increases discharge power, and controls described lithium battery group reduction discharge power.
5. compound energy power distribution system according to claim 2, it is characterized in that, when the state-of-charge of described ultracapacitor module is lower than one first electric discharge set point, and when the state-of-charge of described lithium battery group is lower than one second electric discharge set point, described control unit controls described ultracapacitor module and lithium battery group reduces discharge power respectively.
6. compound energy power distribution system according to claim 1, it is characterized in that, when described compound energy is in charge mode, and load demand power one timing, described control unit controls described ultracapacitor module and lithium battery group is charged with the first charge power and the second charge power respectively; Wherein said first charge power is greater than described second charge power.
7. compound energy power distribution system according to claim 2, it is characterized in that, when the state-of-charge of described ultracapacitor module is higher than one first charging set point, and the state-of-charge of described lithium battery group not higher than one second charging set point time, described control unit controls described ultracapacitor module and reduces charge power, and controls described lithium battery group increase charge power.
8. compound energy power distribution system according to claim 2, it is characterized in that, when the state-of-charge of described lithium battery group is higher than one second charging set point, and the state-of-charge of described ultracapacitor module not higher than one first charging set point time, described control unit controls described ultracapacitor module and increases charge power, and controls described lithium battery group reduction charge power.
9. compound energy power distribution system according to claim 2, it is characterized in that, when the state-of-charge of described ultracapacitor module is higher than one first charging set point, and when the state-of-charge of described lithium battery group is higher than one second charging set point, described control unit controls described ultracapacitor module and lithium battery group reduces charge power respectively.
10. compound energy power distribution system according to claim 1, it is characterized in that, when described load is in the free time, when the state-of-charge of described ultracapacitor module presets lowest critical value lower than one first, described control unit controls described lithium battery group and charges to described ultracapacitor module.
11. compound energy power distribution systems according to claim 1, it is characterized in that, when described load is in the free time, when described ultracapacitor module state-of-charge higher than one first preset the highest critical value time, described control unit controls described ultracapacitor module and charges to described lithium battery group.
12. compound energy power distribution systems according to claim 1, it is characterized in that, when described load is in the free time, when the state-of-charge of described lithium battery group presets lowest critical value lower than one second, described control unit controls described ultracapacitor module and charges to described lithium battery group.
13. compound energy power distribution systems according to claim 1, it is characterized in that, when described load is in the free time, when described lithium battery group state-of-charge higher than one second preset the highest critical value time, control unit controls described lithium battery group and charges to described ultracapacitor module.
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| CN201510627138.9A CN105162236A (en) | 2015-09-28 | 2015-09-28 | Composite energy power distribution system |
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| CN109760522A (en) * | 2018-12-25 | 2019-05-17 | 江苏理工学院 | Vehicle-mounted composite power source power distribution method based on multiple inference rule |
| CN109835199A (en) * | 2018-12-25 | 2019-06-04 | 江苏理工学院 | Vehicle-mounted composite power source power distribution optimization method |
| CN110336355A (en) * | 2019-07-11 | 2019-10-15 | Oppo广东移动通信有限公司 | A kind of charging method, charging unit and terminal device |
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