CN109378840A - Judgment method, system and terminal device are overloaded in multiple-energy-source energy storage - Google Patents
Judgment method, system and terminal device are overloaded in multiple-energy-source energy storage Download PDFInfo
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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
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Abstract
The present invention is suitable for energy technical field of energy storage, provides multiple-energy-source energy storage overload judgment method, system and terminal device.The described method includes: obtaining the energy storage information in multiple-energy-source inversion system and loading total power information；The energy storage overload factor of the multiple-energy-source inversion system is determined according to the energy storage information and the total power information of load；Judge whether the energy storage overload factor meets default overload condition, determines that band carries state according to judging result, and overload protection is carried out to the multiple-energy-source inversion system.The present invention is able to solve overload point in existing overload protection technology and fixes; the problem of overload can not be adjusted in time when the energy is unstable; improve multiple-energy-source inversion system off-network when overload load capacity, improve multiple-energy-source inversion system off-network when energy utilization rate.
Description
Technical field
The invention belongs to energy technical field of energy storage more particularly to multiple-energy-source energy storage overload judgment methods, system and terminal
Equipment.
Background technique
Natural energy has the characteristics that inexhaustible, nexhaustible and clean and safe, is ideal renewable energy.Using certainly
It so can generate electricity and have great importance to alleviating energy crisis with reducing environmental pollution, and have broad application prospects.Band stores
Battery generally can be by natural energy power generator, battery, uni-directional converter, two-way as the natural energy electricity generation system of energy-storage units
The composition such as converter and DC load.Due to the introducing of battery, energy needed for system overload can be mentioned by electric power storage tank discharge
For the power grade of natural energy power generator need to only be configured according to system nominal power, to reduce system cost.
In engineering practice, unstable due to natural energy, multiple-energy-source inversion system probably goes out under off-network state
Phenomenon is now overloaded, but since overload point is fixed, multiple-energy-source inversion system is difficult to detect overload phenomenon under off-network state, into
And the overload load capacity of multiple-energy-source inversion system is influenced, reduce the utilization rate of energy.
Summary of the invention
In view of this, the embodiment of the invention provides multiple-energy-source energy storage overload judgment method, system and terminal devices, with solution
Certainly it is difficult to detect overload phenomenon under multiple-energy-source inversion system off-network state in the prior art, and then influences multiple-energy-source inversion system
Overload load capacity the problem of.
The first aspect of the embodiment of the present invention provides multiple-energy-source energy storage overload judgment method, comprising:
It obtains the energy storage information in multiple-energy-source inversion system and loads total power information；
The energy storage overload of the multiple-energy-source inversion system is determined according to the energy storage information and the total power information of load
Coefficient；
Judge whether the energy storage overload factor meets default overload condition, determines that the multiple-energy-source is inverse according to judging result
The band of change system carries state, and carries out overload protection to the multiple-energy-source inversion system.
Optionally, the energy storage information includes the storage of total the power generation information and energy storage subsystem of multiple energy power generation sub-systems
It can information.
Optionally, total power generation information includes: the total generated output of the energy, the total inversion efficiency of the energy and energy operation mark
Know.
Optionally, the energy storage information includes: energy storage discharge power, energy storage inversion efficiency, storage energy operation mark.
Optionally, described according to the energy storage information and the total power information of the load determines the multiple-energy-source inversion system
Energy storage overload factor specifically include:
Pass through
Determine the energy storage overload factor Klimit；Wherein, Pload is expressed as the total power information of load, PPVIt indicates
For the total generated output of the energy, K1 is expressed as the energy operation mark, and δ 1 is expressed as the total inversion efficiency of the energy,
PbattMax is expressed as the energy storage discharge power, and K2 is expressed as the storage energy operation mark, and δ 2 is expressed as the energy storage inversion
Efficiency.
Optionally, the band load state that the multiple-energy-source inversion system is determined according to judging result, and to the multipotency
Source inversion system carries out overload protection and specifically includes:
When the energy storage overload factor meets the default overload condition, determine that the multiple-energy-source inversion system is in just
Often band carries state；
When the energy storage overload factor is unsatisfactory for the default overload condition, determine that the multiple-energy-source inversion system is in
Overload, and the present overload time is recorded, overload protection is carried out to the multiple-energy-source inversion system according to the overload time.
The second aspect of the embodiment of the present invention provides multiple-energy-source energy storage overload judgement system, comprising:
Data obtaining module, for obtaining the energy storage information in multiple-energy-source inversion system and loading total power information；
Overload factor computing module, for determining the multipotency according to the energy storage information and the total power information of load
The energy storage overload factor of source inversion system；
Judgment module, it is true according to judging result for judging whether the energy storage overload factor meets default overload condition
The band of the fixed multiple-energy-source inversion system carries state, and carries out overload protection to the multiple-energy-source inversion system.
Optionally, the judgment module is specifically used for:
When the energy storage overload factor meets the default overload condition, determine that the multiple-energy-source inversion system is in just
Often band carries state；
When the energy storage overload factor is unsatisfactory for the default overload condition, determine that the multiple-energy-source inversion system is in
Overload, and the present overload time is recorded, overload protection is carried out to the multiple-energy-source inversion system according to the overload time.
The third aspect of the embodiment of the present invention provides terminal device, including memory, processor and is stored in described
In memory and the computer program that can run on the processor, which is characterized in that the processor executes the calculating
It realizes when machine program such as the step of any of the above-described the method.
The fourth aspect of the embodiment of the present invention provides computer readable storage medium, the computer readable storage medium
It is stored with computer program, comprising: realize when the computer program is executed by processor such as any of the above-described the method
Step.
Multiple-energy-source energy storage overload judgment method, system and terminal device in the embodiment of the present invention are deposited compared with prior art
Beneficial effect be: by energy storage information in multiple-energy-source inversion system and load total power information first and determine the multipotency
The energy storage overload factor of source inversion system, further according to judging whether the energy storage overload factor meets default overload condition, i.e. root
It can accurately judge that band of the multiple-energy-source inversion system under off-network state carries situation according to overload factor, if multiple-energy-source inversion
System is in overload and carries out overload protection in time, solve energy source it is unstable when multiple-energy-source inversion system overload phenomenon without
The problem of method changes in time improves overload load capacity when multiple-energy-source inversion system off-network.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the implementation process schematic diagram of multiple-energy-source energy storage overload judgment method provided in an embodiment of the present invention；
Fig. 2 is the implementation process schematic diagram of step S103 in Fig. 1；
Fig. 3 is the application scenarios schematic diagram of multiple-energy-source energy storage overload judgment method provided in an embodiment of the present invention；
Fig. 4 is the structural block diagram of multiple-energy-source energy storage overload judgement system provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of terminal device provided in an embodiment of the present invention.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
Embodiment one
One embodiment implementation process schematic diagram of multiple-energy-source energy storage overload judgment method is provided referring to Fig. 1, is described in detail such as
Under:
Step S101 obtains the energy storage information in multiple-energy-source inversion system and loads total power information.
Under a concrete application scene, multiple-energy-source inversion system is connect with multiple energy power generation sub-systems, also with it is multiple
(electrical equipment) connection is loaded, is also connect with energy storage subsystem, such as Fig. 3, multiple-energy-source inversion system is shown and N number of energy generates electricity
Subsystem connection, also connect with M load (electrical equipment), it should be appreciated that the present embodiment be not to energy power generation sub-system with
Load number is defined, and energy power generation sub-system and load all can be 1, or multiple.Wherein, multiple energy hairs
Electronic system can be different types of energy power generation sub-system, for example, wind energy power generation sub-system, heat energy power generation sub-system
Deng.
Natural energy is converted to electric energy by energy power generation sub-system, such as wind energy is converted to electric energy, and solar energy is converted to electric energy
Deng energy power generation sub-system exports electric energy to load by multiple-energy-source inversion system, in the storage of multiple energy power generation sub-systems
When energy is greater than load total electricity consumption, the electric energy of energy power generation sub-system is also inputed to energy storage subsystem by multiple-energy-source inversion system
It is stored, when the energy storage capacity of multiple energy power generation sub-systems is less than load total electricity consumption, energy storage subsystem is by the electricity of storage
Multiple-energy-source inversion system powering load can be passed through.
There is rated power when in multiple-energy-source inversion system to load supplying, but if being powered more than rated power,
It will occur to overload phenomenon, damage power supply system and load equipment, so whether detection multiple-energy-source inversion system is in overload shape
State is particularly significant.But since (such as solar energy has but just not can be carried out luminous energy at night turn daytime the unstability of energy source
Change) and overload point fix, be difficult to detect overload phenomenon under multiple-energy-source inversion system off-network state, if multiple-energy-source inversion
System is in overload for a long time, will affect the overload load capacity of multiple-energy-source inversion system, reduces the utilization rate of energy.
The present embodiment can obtain the energy storage information in multiple-energy-source inversion system under multiple-energy-source inversion system off-network state
With the total power information of load, determine whether multiple-energy-source inversion system is in overload shape according to energy storage information and the total power information of load
State.
Optionally, the total power information of load in multiple-energy-source inversion system is obtained in real time, is convenient for when energy source is unstable,
Overload in real-time judge multiple-energy-source inversion system, in time discovery overload phenomenon and carry out overload protection, guarantee system
It operates normally, improves overload load capacity when multiple-energy-source inversion system off-network, energy when improving multiple-energy-source inversion system off-network
Utilization rate.
Optionally, the total power information of load can be load general power.According to the energy storage information and load total work
Rate determines whether multiple-energy-source inversion system is in overload.
In another embodiment, the energy storage information includes the total power generation information and energy storage of multiple energy power generation sub-systems
The energy storage information of system.
The present embodiment is to obtain total power generation information of multiple energy power generation sub-systems and the energy storage information of energy storage subsystem, root
Determine whether multiple-energy-source inversion system is in overload according to the relationship between total power generation information, energy storage information and the total power information of load
State.
The present embodiment further includes obtaining the power generation information of each energy subsystem and calculating multiple energy power generation sub-systems
Total power generation information, obtains the power information of each load and calculates total power information of multiple loads.
Optionally, total power generation information is added to obtain the energy storage information with the energy storage information of the energy storage subsystem.
It is always generated electricity the energy storage information that information is added with the energy storage information, and is loaded between total power information according to the Fu
Relationship determine whether multiple-energy-source inversion system is in overload.Wherein, always power generation information can determine multiple energy power generations
The gross output of subsystem, energy storage information can determine the output power of energy storage subsystem, total information and energy storage information of generating electricity
Addition obtains the energy storage information and then can reflect out the overall output power of multiple-energy-source inversion system.
In one embodiment, total power generation information includes: the total generated output of the energy, the total inversion efficiency of the energy and energy fortune
Line identifier.
Natural energy is converted to direct current electricity output and gives multiple-energy-source inversion system, multiple-energy-source inversion by multiple energy power generation sub-systems
Direct current is converted to exchange electricity output to load by system, while multiple-energy-source inversion system is also by the direct current in energy storage subsystem
Exchange electricity output is converted to load, so obtaining the total inversion efficiency of the energy in the present embodiment.
Wherein, the total generated output of the energy refers to total maximum discharge power of multiple energy power generation sub-systems；The energy is always inverse
Become the inversion efficiency that efficiency refers to multiple-energy-source inversion system, energy operation mark refers to whether multiple energy power generation sub-systems are in
Photovoltaic power generation state.
In the present embodiment, energy operation mark can be expressed as 1 during the day, can be expressed as 0 during the day.
The present embodiment is transported by the total generated output of the energy, the total inversion efficiency of the energy and the energy of multiple energy power generation sub-systems
Total power generation information of line identifier composition in conjunction with energy storage information and loads total power information, is accurately determined multiple-energy-source inversion system
Overload, and then guarantee multiple-energy-source inversion system overload load capacity.
Optionally, the product of the total generated output of the energy, the total inversion efficiency of the energy and energy operation mark is determined as described total
Generate electricity information.
The product that the total generated output of the energy, the total inversion efficiency of the energy and the energy operation of multiple energy power generation sub-systems identify
It is determined as total power generation information, in conjunction with energy storage information and loads total power information, multiple-energy-source contravariant system can be accurately determined
The overload of system, and then guarantee the overload load capacity of multiple-energy-source inversion system.
Optionally, the energy storage information includes: energy storage discharge power, energy storage inversion efficiency and the energy storage fortune of energy storage subsystem
Line identifier.In the present embodiment, the energy storage subsystem can be battery or battery group, supply for storing electric energy or to load
Electricity.
Specifically, energy storage discharge power can be expressed as the maximum discharge power of energy storage subsystem.Energy storage inversion efficiency is
Refer to the inversion efficiency when electric energy of energy storage subsystem is powered load by multiple-energy-source inversion system.Storage energy operation identifies
The electricity for referring to energy storage subsystem is in normal, under-voltage or abnormality.In the present embodiment, energy storage subsystem is in normal shape
When state, storage energy operation mark is expressed as 1；When energy storage subsystem is in under-voltage condition or abnormality, storage energy operation mark is indicated
It is 0.
The energy storage information that the present embodiment is made up of energy storage discharge power, inversion efficiency and operation mark, in conjunction with total power generation
Information and the total power information of load, are accurately determined the overload of multiple-energy-source inversion system, and then guarantee multiple-energy-source contravariant system
The overload load capacity of system.
Optionally, the product of the energy storage discharge power of energy storage subsystem, energy storage inversion efficiency and storage energy operation mark determines
For the energy storage information.
The product that energy storage discharge power, energy storage inversion efficiency and the storage energy operation of energy storage subsystem identify is determined as the storage
Energy information in conjunction with energy storage information and loads total power information, can be accurately determined the overload of multiple-energy-source inversion system, into
And guarantee the overload load capacity of multiple-energy-source inversion system.
Step S102 determines the multiple-energy-source inversion system according to the energy storage information and the total power information of load
Energy storage overload factor.
Specifically, the energy storage overload factor of the multiple-energy-source inversion system can reflect out the multiple-energy-source inversion system
Load capacity judges whether the multiple-energy-source inversion system is in overload according to load capacity, than fixed overload point, leads to
It is more accurate to cross the judging result that energy storage overload factor is judged, and overload protection can be carried out in time.
Optionally, the multiple-energy-source contravariant system is determined according to the ratio of the energy storage information and the total power information of load
The energy storage overload factor of system is to get the overload factor to after normalizing.For example, according to total power generation information, energy storage
The energy storage information of system and the total power information of load determine the energy storage overload factor of the multiple-energy-source inversion system.
In one embodiment, discharged according to the total generated output of the energy, the total inversion efficiency of the energy, energy operation mark, energy storage
Power, energy storage inversion efficiency, storage energy operation mark and the total power information of load determine the storage of the multiple-energy-source inversion system
It can overload factor.
It is described according to the energy storage information and the total power information of the load determines the energy storage of the multiple-energy-source inversion system
Overload factor can specifically include:
Pass through
Determine the energy storage overload factor Klimit；Wherein, Pload is expressed as the total power information of load, PPVIt indicates
For the total generated output of the energy, K1 is expressed as the energy operation mark, and δ 1 is expressed as the total inversion efficiency of the energy,
PbattMax is expressed as the energy storage discharge power, and K2 is expressed as the storage energy operation mark, and δ 2 is expressed as the energy storage inversion
Efficiency.
In the present embodiment, the total inversion efficiency δ 1 of the energy is constant, and energy storage inversion efficiency δ 2 is constant；Energy operation mark K1
During the day be 1, at night when be 0；It is 1 when storage energy operation mark is in normal condition, is when in under-voltage or abnormality
0。
Step S103, judges whether the energy storage overload factor meets default overload condition, determines institute according to judging result
The band load state of multiple-energy-source inversion system is stated, and overload protection is carried out to the multiple-energy-source inversion system.
Referring to fig. 2, in another embodiment, the multiple-energy-source inversion system is determined according to judging result in step S103
Band carry state, and to the multiple-energy-source inversion system carry out overload protection the specific implementation process is as follows:
Step 201, when the energy storage overload factor meets the default overload condition, the multiple-energy-source contravariant system is determined
System carries state in normal band.
Illustratively, when the energy storage overload factor Klimit is in 0≤Klimit≤1, then illustrate multiple energy power generations
The sum of discharge power and energy storage discharge power of subsystem are greater than load general power, or illustrate putting for multiple energy power generation sub-systems
The sum of electrical power and energy storage discharge power are equal to load general power, and then determine that the multiple-energy-source inversion system is in normal band and carries
State.
Step S202 determines that the multiple-energy-source is inverse when the energy storage overload factor is unsatisfactory for the default overload condition
Change system is in overload, and records the present overload time, according to the overload time to the multiple-energy-source inversion system into
Row overload protection.
Illustratively, when the energy storage overload factor Klimit is in Klimit >=1, then illustrate multiple energy power generation subsystems
The sum of discharge power and energy storage discharge power of system are less than load general power, and then determine that the multiple-energy-source inversion system was in
Load state records the present overload time, carries out overload protection in time according to the overload time, and then improve multiple-energy-source contravariant system
Load capacity when off-network of uniting.
In one embodiment, when the energy storage overload factor is unsatisfactory for the default overload condition, the multipotency is determined
Source inversion system is in overload, and records the present overload time, according to the overload time to the multiple-energy-source contravariant system
System carry out overload protection specific implementation flow include:
When the energy storage overload factor is greater than the first default overload factor, the present overload time is recorded；In present overload
When time is greater than or equal to the first default overload time, control overload protection device carries out overload protection, and signal an alert,
When the present overload time is less than the first default overload time, judge whether the energy storage overload factor is greater than the second default overload
Coefficient.
When the energy storage overload factor is greater than the second default overload factor, the present overload time is recorded；In present overload
When time is greater than or equal to the second default overload time, control overload protection device carries out overload protection；In the present overload time
When less than the second default overload time, judge whether the energy storage overload factor is greater than third and presets overload factor.
When the energy storage overload factor is greater than third and presets overload factor, the present overload time is recorded；In present overload
When time presets overload time more than or equal to third, control overload protection device carries out overload protection；In the present overload time
When presetting overload time less than third, overload protection can not be started.
Wherein, the first default default overload factor > third of overload factor > the second presets overload factor, the first default overload
Default overload time < the third of time < the second presets overload time.
Specifically, the present embodiment carries out different overload protections according to the particular state of overload.For example, in face of burst electricity consumption
Overload caused by equipment electricity consumption can first judge whether overload is serious, and the time of overload, if only having one
Point overload, and the time is very short, then can not start overload protection arrangement, also reduce the braking number of overload protection arrangement in this way,
Extend the service life of overload protection arrangement；If there is heavy overload, and overload time reaches preset time, then overload is immediately controlled
Protective device is protected, and is sent a warning and notified staff's maintenance etc..
Optionally, when determining that the multiple-energy-source inversion system is in overload, it can send and overload to default terminal
Status information, such as overload degree and overload time.Staff can not recognize overload at the scene, and can
To formulate specific protection scheme and maintenance monitoring scheme according to overload degree and overload time.
Optionally, overload protection method can be by changing load capacity and cutting circuit two ways.Change band and carries energy
Power can change the output power of energy power generation sub-system by changing the resistance of energy power generation sub-system, improve system band and carry
Ability.
Optionally, overload protection method may include that communication air switch and fuse realize overload protection function, that is, exist
An air switch or fuse are placed in the electric line connected between multiple-energy-source inversion system and multiple loads, can be realized
Carry defencive function.
Specifically, air switch can automatic trip when the electric current for flowing through air switch is greater than its rated current.Air is opened
It closes to reuse device, re-closes and can reuse after air switch tripping, save cost.When the electricity for flowing through fuse
When stream is greater than its rated current, fuse be will disconnect.Fuse is disposable device, just cannot be reused after fusing.
Optionally, electrothermal relay can be used in overload protection, when energy energy-storage system overload, electrothermal relay movement, often
Closed contact cuts off power supply circuit, and normally opened contact closure connects indicator light, and after overload excludes, the contact of electrothermal relay passes through reset side
Formula makes circuit restart work, such as hand-reset or automatically resets.
It optionally, can also be using overload protecting circuit to multiple-energy-source inversion system in overload protection method in the present embodiment
Carry out overload protection.The present embodiment to overload protecting circuit without limitation.
Judgment method is overloaded in above-mentioned multiple-energy-source energy storage, by the energy storage information in multiple-energy-source inversion system and loads total electricity consumption
Information determines the energy storage overload factor of the multiple-energy-source inversion system, further according to judging it is pre- whether the energy storage overload factor meets
If overload condition, i.e., the band load state of the multiple-energy-source inversion system can be accurately judged according to overload factor, if being in
Load state carries out overload protection in time, and the overload phenomenon of multiple-energy-source inversion system can not change in time when solution energy source is unstable
The problem of, improve overload load capacity when multiple-energy-source inversion system off-network；The present embodiment can also be according to different mistakes simultaneously
Load state carries out the overload protection of different modes, extends the service life of overload protection arrangement, improves the stabilization of multiple-energy-source inversion system
Property.
It will be understood by those skilled in the art that in above-described embodiment the size of the serial number of each step be not meant to execute it is suitable
Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Process constitutes any restriction.
Embodiment two
Judgment method is overloaded corresponding to multiple-energy-source energy storage described in foregoing embodiments one, shows implementation of the present invention in Fig. 4
The structural block diagram of multiple-energy-source energy storage overload judgement system in example two.For ease of description, it illustrates only related to the present embodiment
Part.
The device includes: data obtaining module 110, overload factor computing module 120 and judgment module 130.
Data obtaining module 110 is used to obtain the energy storage information in multiple-energy-source inversion system and loads total power information.
Overload factor computing module 120 is used to be determined according to the energy storage information and the total power information of load described more
The energy storage overload factor of energy inversion system.
Judgment module 130 is for judging whether the energy storage overload factor meets default overload condition, according to judging result
It determines the band load state of the multiple-energy-source inversion system, and overload protection is carried out to the multiple-energy-source inversion system.
Optionally, judgment module 130 is specifically used for:
When the energy storage overload factor meets the default overload condition, determine that the multiple-energy-source inversion system is in just
Often band carries state.
When the energy storage overload factor is unsatisfactory for the default overload condition, determine that the multiple-energy-source inversion system is in
Overload, and the present overload time is recorded, overload protection is carried out to the multiple-energy-source inversion system according to the overload time.
In above-mentioned multiple-energy-source energy storage overload judgement system, pass through the energy storage information and the total use of load in multiple-energy-source inversion system
Power information determines the energy storage overload factor of the multiple-energy-source inversion system, further according to judging whether the energy storage overload factor meets
Default overload condition, i.e., accurately judge the band load state of the multiple-energy-source inversion system according to overload factor, if in overload
State carries out overload protection in time, solves the problems, such as that overload capacity when energy source is unstable can not change in time, improves multipotency
Overload load capacity when the inversion system off-network of source.
Embodiment three
Fig. 5 is the schematic diagram for the terminal device 100 that the embodiment of the present invention three provides.As shown in figure 5, the terminal of the embodiment
Equipment 100 includes: processor 140, memory 150 and is stored in the memory 150 and can be on the processor 140
The computer program 151 of operation, such as the program of multiple-energy-source energy storage overload judgment method.The processor 140 is described in the execution
The step in above-mentioned multiple-energy-source energy storage overload judgment method embodiment, such as step shown in FIG. 1 are realized when computer program 151
101 to 103.Alternatively, the processor 140 realizes each mould in above-mentioned each Installation practice when executing the computer program 151
Block/unit function, such as the function of module 110 to 130 shown in Fig. 4.
Illustratively, the computer program 151 can be divided into one or more module/units, it is one or
Multiple module/the units of person are stored in the memory 150, and are executed by the processor 140, to complete the present invention.Institute
Stating one or more module/units can be the series of computation machine program instruction section that can complete specific function, the instruction segment
For describing implementation procedure of the computer program 151 in the terminal device 100.For example, the computer program 151
Data obtaining module, overload factor computing module and judgment module can be divided into, each module concrete function is as follows:
Data obtaining module is used to obtain the energy storage information in multiple-energy-source inversion system and loads total power information.
Overload factor computing module is used to determine the multipotency according to the energy storage information and the total power information of load
The energy storage overload factor of source inversion system.
Judgment module is determined for judging whether the energy storage overload factor meets default overload condition according to judging result
The band of the multiple-energy-source inversion system carries state, and carries out overload protection to the multiple-energy-source inversion system.
Optionally, judgment module is specifically used for: when the energy storage overload factor meets the default overload condition, determining
The multiple-energy-source inversion system is in normal band and carries state.
When the energy storage overload factor is unsatisfactory for the default overload condition, determine that the multiple-energy-source inversion system is in
Overload, and the present overload time is recorded, overload protection is carried out to the multiple-energy-source inversion system according to the overload time.
The terminal device 100 can be the calculating such as desktop PC, notebook, palm PC and cloud server and set
It is standby.The terminal device 100 may include, but be not limited only to processor 140, memory 150.Those skilled in the art can manage
Solution, Fig. 5 is only the example of terminal device 100, does not constitute the restriction to terminal device 100, may include more than illustrating
Or less component, certain components or different components are perhaps combined, such as the terminal device 100 can also include defeated
Enter output equipment, network access equipment, bus etc..
Alleged processor 140 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng.
The memory 150 can be the internal storage unit of the terminal device 100, such as terminal device 100 is hard
Disk or memory.The memory 150 is also possible to the External memory equipment of the terminal device 100, such as the terminal device
The plug-in type hard disk being equipped on 100, intelligent memory card (Smart Media Card, SMC), secure digital (Secure
Digital, SD) card, flash card (Flash Card) etc..Further, the memory 150 can also both include the terminal
The internal storage unit of equipment 100 also includes External memory equipment.The memory 150 for store the computer program with
And other programs and data needed for the terminal device 100.The memory 150 can be also used for temporarily storing defeated
Out or the data that will export.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function
Can unit, model division progress for example, in practical application, can according to need and by above-mentioned function distribution by different
Functional unit, module are completed, i.e., the internal structure of described device is divided into different functional unit or module, more than completing
The all or part of function of description.Each functional unit in embodiment, module can integrate in one processing unit, can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units, it is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.In addition, each function list
Member, the specific name of module are also only for convenience of distinguishing each other, the protection scope being not intended to limit this application.Above system
The specific work process of middle unit, module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided by the present invention, it should be understood that disclosed device/terminal device and method, it can be with
It realizes by another way.For example, device described above/terminal device embodiment is only schematical, for example, institute
The division of module or unit is stated, only a kind of logical function partition, there may be another division manner in actual implementation, such as
Multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.Separately
A bit, shown or discussed mutual coupling or direct-coupling or communication connection can be through some interfaces, device
Or the INDIRECT COUPLING or communication connection of unit, it can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated module/unit be realized in the form of SFU software functional unit and as independent product sale or
In use, can store in a computer readable storage medium.Based on this understanding, the present invention realizes above-mentioned implementation
All or part of the process in example method, can also instruct relevant hardware to complete, the meter by computer program
Calculation machine program can be stored in a computer readable storage medium, the computer program when being executed by processor, it can be achieved that on
The step of stating each embodiment of the method.Wherein, the computer program includes computer program code, the computer program generation
Code can be source code form, object identification code form, executable file or certain intermediate forms etc..The computer-readable medium
It may include: any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic that can carry the computer program code
Dish, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory (RAM,
Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that described
The content that computer-readable medium includes can carry out increasing appropriate according to the requirement made laws in jurisdiction with patent practice
Subtract, such as in certain jurisdictions, according to legislation and patent practice, computer-readable medium do not include be electric carrier signal and
Telecommunication signal.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (10)
1. judgment method is overloaded in multiple-energy-source energy storage characterized by comprising
It obtains the energy storage information in multiple-energy-source inversion system and loads total power information；
The energy storage overload factor of the multiple-energy-source inversion system is determined according to the energy storage information and the total power information of load；
Judge whether the energy storage overload factor meets default overload condition, the multiple-energy-source contravariant system is determined according to judging result
The band of system carries state, and carries out overload protection to the multiple-energy-source inversion system.
2. judgment method is overloaded in multiple-energy-source energy storage as described in claim 1, which is characterized in that the energy storage information includes multiple
Total power generation information of energy power generation sub-system and the energy storage information of energy storage subsystem.
3. judgment method is overloaded in multiple-energy-source energy storage as claimed in claim 2, which is characterized in that total power generation information includes:
The total generated output of the energy, the total inversion efficiency of the energy and energy operation mark.
4. judgment method is overloaded in multiple-energy-source energy storage as claimed in claim 3, which is characterized in that the energy storage information includes: storage
Energy storage discharge power, energy storage inversion efficiency and the storage energy operation mark of energy subsystem.
5. judgment method is overloaded in multiple-energy-source energy storage as claimed in claim 4, which is characterized in that described according to the energy storage information
Determine that the energy storage overload factor of the multiple-energy-source inversion system specifically includes with the total power information of load:
Pass through
Determine the energy storage overload factor Klimit；Wherein, Pload is expressed as the total power information of load, PPVIt is expressed as institute
The total generated output of the energy is stated, K1 is expressed as the energy operation mark, and δ 1 is expressed as the total inversion efficiency of the energy, PbattMax
It is expressed as the energy storage discharge power, K2 is expressed as the storage energy operation mark, and δ 2 is expressed as the energy storage inversion efficiency.
6. as judgment method is overloaded in multiple-energy-source energy storage described in any one of claim 1 to 5, which is characterized in that the basis is sentenced
Disconnected result determines the band load state of the multiple-energy-source inversion system, and it is specific to carry out overload protection to the multiple-energy-source inversion system
Include:
When the energy storage overload factor meets the default overload condition, determine that the multiple-energy-source inversion system is in normal band
Load state；
When the energy storage overload factor is unsatisfactory for the default overload condition, determine that the multiple-energy-source inversion system is in overload
State, and the present overload time is recorded, overload protection is carried out to the multiple-energy-source inversion system according to the overload time.
7. judgement system is overloaded in multiple-energy-source energy storage characterized by comprising
Data obtaining module, for obtaining the energy storage information in multiple-energy-source inversion system and loading total power information；
Overload factor computing module, for determining that the multiple-energy-source is inverse according to the energy storage information and the total power information of load
The energy storage overload factor of change system；
Judgment module determines institute according to judging result for judging whether the energy storage overload factor meets default overload condition
The band load state of multiple-energy-source inversion system is stated, and overload protection is carried out to the multiple-energy-source inversion system.
8. judgement system is overloaded in multiple-energy-source energy storage as claimed in claim 7, which is characterized in that the judgment module is specifically used
In:
When the energy storage overload factor meets the default overload condition, determine that the multiple-energy-source inversion system is in normal band
Load state；
When the energy storage overload factor is unsatisfactory for the default overload condition, determine that the multiple-energy-source inversion system is in overload
State, and the present overload time is recorded, overload protection is carried out to the multiple-energy-source inversion system according to the overload time.
9. terminal device, including memory, processor and storage can be run in the memory and on the processor
Computer program, which is characterized in that the processor is realized when executing the computer program as claim 1 to 6 is any
The step of item the method.
10. computer readable storage medium, the computer-readable recording medium storage has computer program, which is characterized in that
It is realized when the computer program is executed by processor such as the step of any one of claim 1 to 6 the method.
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| CN201811238778.0A CN109378840B (en) | 2018-10-23 | 2018-10-23 | Multi-energy storage overload judgment method and system and terminal equipment |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647302A (en) * | 2013-12-05 | 2014-03-19 | 上海电力学院 | Multi-sub microgrid-contained mixed microgrid system and control method thereof |
| CN107240917A (en) * | 2017-05-16 | 2017-10-10 | 沃太能源南通有限公司 | A kind of off-network domestic loads intelligent management system judged based on priority level and method |
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2018
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647302A (en) * | 2013-12-05 | 2014-03-19 | 上海电力学院 | Multi-sub microgrid-contained mixed microgrid system and control method thereof |
| CN107240917A (en) * | 2017-05-16 | 2017-10-10 | 沃太能源南通有限公司 | A kind of off-network domestic loads intelligent management system judged based on priority level and method |
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