CN108063438A - The control method and device of DC micro power grid system - Google Patents
The control method and device of DC micro power grid system Download PDFInfo
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- CN108063438A CN108063438A CN201711174227.8A CN201711174227A CN108063438A CN 108063438 A CN108063438 A CN 108063438A CN 201711174227 A CN201711174227 A CN 201711174227A CN 108063438 A CN108063438 A CN 108063438A
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- 238000011022 operating instruction Methods 0.000 claims description 36
- 238000012544 monitoring process Methods 0.000 claims description 14
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- 230000000694 effects Effects 0.000 abstract description 3
- 238000007726 management method Methods 0.000 description 24
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- 238000012545 processing Methods 0.000 description 7
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- 238000007600 charging Methods 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
-
- H02J3/382—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses the control methods and device of a kind of DC micro power grid system.This method includes：In the case where receiving instruction of being incorporated into the power networks, the grid-connected self-operating pattern of DC micro power grid system is opened, wherein, direct-current grid includes distributed energy, DC load, energy-storage battery, grid-connecting apparatus；In the case where receiving off-grid operation instruction, the off-network self-operating pattern of DC micro power grid system is opened, wherein, do not do management and running under grid-connected self-operating pattern and under off-network self-operating pattern to distributed energy, energy-storage battery, DC load.By the present invention, achieve the effect that carry out intelligent control to DC micro power grid system.
Description
Technical field
The present invention relates to control field, in particular to the control method and device of a kind of DC micro power grid system.
Background technology
It is applied with the fast development and wide hair of distributed energy, the micro-capacitance sensor technology application based on new energy is quick
Development, direct-current grid become the hot spot of research and application with itself advantage.
Electric energy is by the end that generates electricity to electricity consumption end one-way flow in traditional network distribution system, and energy source use according to being taken on demand
Mode carries out, and by new energy apply based on micro-grid system, it is more comprising distributed energy, power grid, energy storage etc. in system
Kind energy source use, in order to meet various energy resources interactive application, micro-grid system operation needs to have plurality of operating modes to ensure
Energy balance and system are stablized.DC micro power grid system demand under different application scene has differences, at present can not be to direct current
Micro-grid system carries out intelligent control.
The problem of for that can not carry out intelligent control to DC micro power grid system in correlation technique, not yet proposes effective at present
Solution.
The content of the invention
It is existing to solve it is a primary object of the present invention to provide a kind of control method of DC micro power grid system and device
The problem of can not carrying out intelligent control to DC micro power grid system in technology.
To achieve these goals, according to an aspect of the invention, there is provided a kind of control of DC micro power grid system
Method, which is characterized in that including：In the case where receiving instruction of being incorporated into the power networks, open DC micro power grid system it is grid-connected from
Operational mode, wherein, the direct-current grid includes distributed energy, DC load, energy-storage battery, grid-connecting apparatus；It is receiving
In the case of being instructed to off-grid operation, the off-network self-operating pattern of the DC micro power grid system is opened, wherein, described grid-connected
It is born under self-operating pattern and to the distributed energy, the energy-storage battery, the direct current under the off-network self-operating pattern
Lotus is not cooked management and running.
Further, after the grid-connected self-operating pattern of DC micro power grid system is opened, the method further includes：Detection
Whether first mode operating instruction is received；In the case where receiving the first mode operating instruction, according to load characteristic
Management is scheduled to system energy.
Further, management is scheduled system energy according to load characteristic, including：It is pre- to be less than or equal to first in electricity price
If in the case of electricity price, electric power storage is carried out to the energy-storage battery；In the case where electricity price is more than or equal to the second default electricity price, to institute
Energy-storage battery is stated to discharge, wherein, the described second default electricity price is more than the described first default electricity price.
Further, after the grid-connected self-operating pattern of DC micro power grid system is opened, the method further includes：Detection
Whether second mode operating instruction is received；In the case where receiving the second mode operating instruction, to domestic environment into
Row monitoring, is adjusted the DC load according to monitoring result.
Further, after the off-network self-operating pattern of the DC micro power grid system is opened, the method further includes：
It detects whether to receive the third mode operating instruction；In the case where receiving the third mode operating instruction, to multiple institutes
It states DC load and carries out differentiated control.
To achieve these goals, according to an aspect of the invention, there is provided a kind of control of DC micro power grid system
Device, which is characterized in that including：First opening unit, in the case where receiving instruction of being incorporated into the power networks, it is micro- to open direct current
The grid-connected self-operating pattern of network system, wherein, the direct-current grid include distributed energy, DC load, energy-storage battery,
Grid-connecting apparatus；Second opening unit, in the case where receiving off-grid operation instruction, opening the DC micro power grid system
Off-network self-operating pattern, wherein, to described point under the grid-connected self-operating pattern and under the off-network self-operating pattern
The cloth energy, the energy-storage battery, the DC load do not do management and running.
Further, described device further includes：First detection unit, it is micro- for opening direct current in first opening unit
After the grid-connected self-operating pattern of network system, detect whether to receive first mode operating instruction；Scheduling unit, for connecing
In the case of receiving the first mode operating instruction, management is scheduled system energy according to load characteristic.
Further, the scheduling unit includes：Electric power storage subelement, for being less than or equal to the first default electricity price in electricity price
In the case of, electric power storage is carried out to the energy-storage battery；Discharge subelement, for being more than or equal to the situation of the second default electricity price in electricity price
Under, it discharges the energy-storage battery, wherein, the described second default electricity price is more than the described first default electricity price.
Further, described device further includes：Second detection unit, it is micro- for opening direct current in first opening unit
After the grid-connected self-operating pattern of network system, detect whether to receive second mode operating instruction；Monitoring unit, for connecing
In the case of receiving the second mode operating instruction, domestic environment is monitored, the direct current is born according to monitoring result
Lotus is adjusted.
Further, described device further includes：3rd detection unit is described straight for being opened in second opening unit
After the off-network self-operating pattern for flowing micro-grid system, detect whether to receive the third mode operating instruction；Differentiated control unit,
For in the case where receiving the third mode operating instruction, differentiated control to be carried out to multiple DC loads.
To achieve these goals, according to an aspect of the invention, there is provided a kind of storage medium, which is characterized in that
The storage medium includes the program of storage, wherein, equipment where the storage medium is controlled when described program is run performs
The control method of above-mentioned DC micro power grid system.
To achieve these goals, according to an aspect of the invention, there is provided a kind of processor, which is characterized in that institute
Processor is stated for operation program, wherein, described program performs the control method of above-mentioned DC micro power grid system when running.
In embodiments of the present invention, DC micro power grid system is receiving the finger that is incorporated into the power networks there are two types of basic operating status
In the case of order, the grid-connected self-operating pattern of DC micro power grid system is opened, in the case where receiving off-grid operation instruction, is opened
Open the off-network self-operating pattern of DC micro power grid system, both basic operational modes to generation of electricity by new energy, energy storage, load etc. no
Management and running are done, micro-grid system power and energy balance are realized in the self adaptive control of system unit, and solving can not be to straight
The technical issues of micro-grid system carries out intelligent control is flowed, has reached the technique effect of intelligent control DC micro power grid system.
Description of the drawings
The attached drawing for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is a kind of flow chart of the control method of optional DC micro power grid system according to embodiments of the present invention；
Fig. 2 is a kind of optional DC micro power grid system and net state schematic diagram according to embodiments of the present invention；
Fig. 3 is a kind of schematic diagram of the off-network state of optional DC micro power grid system according to embodiments of the present invention；
Fig. 4 is a kind of operational mode schematic diagram of optional DC micro power grid system according to embodiments of the present invention；
Fig. 5 is the flow chart of the control method of the optional DC micro power grid system of another kind according to embodiments of the present invention；
Fig. 6 is a kind of schematic diagram of the control device of optional DC micro power grid system according to embodiments of the present invention.
Specific embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order to which those skilled in the art is made to more fully understand application scheme, below in conjunction in the embodiment of the present application
The technical solution in the embodiment of the present application is clearly and completely described in attached drawing, it is clear that described embodiment is only
The embodiment of the application part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's all other embodiments obtained without making creative work should all belong to the model of the application protection
It encloses.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be the object for distinguishing similar, without being used to describe specific order or precedence.It should be appreciated that it so uses
Data can exchange in the appropriate case, so as to embodiments herein described herein.In addition, term " comprising " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing series of steps or unit
Process, method, system, product or equipment are not necessarily limited to those steps or unit clearly listed, but may include without clear
It is listing to Chu or for the intrinsic other steps of these processes, method, product or equipment or unit.
An embodiment of the present invention provides a kind of control methods of DC micro power grid system.
Fig. 1 is a kind of flow chart of the control method of optional DC micro power grid system according to embodiments of the present invention, such as
Shown in Fig. 1, this method comprises the following steps：
Step S102：In the case where receiving instruction of being incorporated into the power networks, the grid-connected self-operating of DC micro power grid system is opened
Pattern, wherein, direct-current grid includes distributed energy, DC load, energy-storage battery, grid-connecting apparatus.
Step S104：In the case where receiving off-grid operation instruction, the off-network self-operating of DC micro power grid system is opened
Pattern, wherein, it is born under grid-connected self-operating pattern and under off-network self-operating pattern to distributed energy, energy-storage battery, direct current
Lotus is not cooked management and running.
DC micro power grid system includes wind-power electricity generation, the photovoltaic generation distributed energy, DC loads at different levels, energy-storage battery
And grid-connecting apparatus, access DC micro power grid system each partly have the control function for maintaining homeostasis operation, system has
Grid-connected and two kinds of basic operating statuses of off-network, respectively as shown in Figures 2 and 3.Under simultaneously net state, power grid access system, system
Electricity can be taken from power grid, can also powered to power grid.Under off-network state, power grid is disconnected with system.
All with the new energy such as photovoltaic are preferential, load takes on demand, multiple-energy-source is mutual under grid-connected and off-grid operation state
The system self-operating pattern of supplement, i.e., two kinds of basic operational modes of grid-connected self-operating pattern and off-network self-operating pattern.It is grid-connected from
Operational mode and both basic operational modes of off-network self-operating pattern do not do generation of electricity by new energy, energy storage, load etc. scheduling pipe
Micro-grid system power and energy balance are realized in reason, the self adaptive control of system unit.
In embodiments of the present invention, DC micro power grid system is receiving the finger that is incorporated into the power networks there are two types of basic operating status
In the case of order, the grid-connected self-operating pattern of DC micro power grid system is opened, in the case where receiving off-grid operation instruction, is opened
Open the off-network self-operating pattern of DC micro power grid system, both basic operational modes to generation of electricity by new energy, energy storage, load etc. no
Management and running are done, the self adaptive control of system unit realizes micro-grid system power and energy balance, reached intelligent control
The technique effect of DC micro power grid system solves the technical issues of can not carrying out intelligent control to DC micro power grid system.
Optionally, after the grid-connected self-operating pattern of DC micro power grid system is opened, method further includes：It detects whether to connect
Receive first mode operating instruction；In the case where receiving first mode operating instruction, according to load characteristic to system energy
It is scheduled management.
Optionally, management is scheduled system energy according to load characteristic, including：It is default to be less than or equal to first in electricity price
In the case of electricity price, electric power storage is carried out to energy-storage battery；In the case where electricity price is more than or equal to the second default electricity price, to energy-storage battery
It discharges, wherein, the second default electricity price is more than the first default electricity price.
Electric power storage is carried out when electricity price is cheap, is discharged when electricity price is expensive, it can effectively save cost.
Electric power storage includes two kinds：Directly storage and indirectly storage.For example, charging to energy-storage battery and to chargings such as electric vehicles
For direct storage mode；To bootable preconditioning load management (to thermic load or to refrigeration duty preheating or cold treatment) indirectly to deposit
Storage mode.
Electric discharge includes two kinds：Directly electric discharge and indirect discharge.For example, it discharges energy-storage battery and is to electric vehicle electric discharge
Direct discharge mode；Bootable preconditioning load management (is ensured to thermic load or to refrigeration duty at basic application state drop volume
Reason) it is indirect discharge mode.
Optionally, after the grid-connected self-operating pattern of DC micro power grid system is opened, method further includes：It detects whether to connect
Receive second mode operating instruction；In the case where receiving second mode operating instruction, domestic environment is monitored, according to
DC load is adjusted in monitoring result.
DC load, which is adjusted, can be specifically：The electric appliances such as air-conditioning, humidifier, air purifier are managed and
It adjusts, to ensure air themperature, humidity, cleanliness factor；The electric appliances such as water heater and water purifier are managed and adjusted, to ensure heat
Water and drinking water；The electric appliances such as refrigerator and electric cooker are managed and adjusted, to meet the high-preserved requirement of food.
User can pre-set the target component of domestic environment, and the family of user setting is carried in second mode operating instruction
The target component of habitat environment.For example, user can set indoor target temperature, for T1, target humidity Q1 is then monitored indoor
Monitoring result and target temperature T1, target humidity Q1 are compared by temperature and humidity, according to comparative result to air-conditioning, humidification
Device is adjusted, until indoor temperature reaches target temperature T1, until indoor humidity reaches target humidity Q1.
By being monitored to domestic environment, DC load is adjusted according to monitoring result so that living environment is more
Add comfortably, and user can be met and customize requirement.
Optionally, after the off-network self-operating pattern of DC micro power grid system is opened, method further includes：It detects whether to connect
Receive the third mode operating instruction；In the case where receiving the third mode operating instruction, multiple DC loads are classified
Management.
The third mode operating instruction is the instruction of instruction starting energy-saving Optimizing Mode.Under off-network state, according to energy storage electricity
Multiple DC loads are carried out differentiated control by pond surplus amount and guarantee duration requirement.By DC load according to the height of priority
Low to be classified, priority can be user setting, or acquiescence.Under normal circumstances, acquiescence just needs type load (example
Such as lighting apparatus) highest priority, small-power must type load (such as fan) preferentially level height, followed by high-power necessary
Type load (such as electric cooker) is finally nonessential type load (such as water heater, humidifier).Multiple DC loads are divided
Grade manages：Ensure the use of load from high to low according to priority.
If energy-storage battery surplus amount is high, and ensures that duration requirement is short, then more load can be made to be in operation shape
State；And if energy-storage battery surplus amount is low or guarantee duration requirement is grown, ensure high priority in strict accordance with priority height
Load works normally, and is cut off for low priority load.
It is preferential to ensure high priority load normal work by carrying out differentiated control to load, realize energy saving of system operation.
In order to meet energy source use diversified demand, the optimization of MGCC controller embedded systems economy, comfort optimization, section
Can property optimization 3 kinds of running optimizatin patterns, from user experience, economy, energy saving etc. to the energy of micro-grid system into
Row more fine-grained management realizes the selection variation of application scenarios and application model, meets different user application demand.Such as Fig. 4
Shown, the operational mode of DC micro power grid system includes：Grid type and off-network type.Wherein, grid type is divided into grid-connected self-operating mould
Formula, economic optimization pattern, comfortable Optimizing Mode.Off-network type is divided into off-network self-operating pattern, energy saving optimizing pattern.Below to each
Pattern is described in detail.
Economic optimization operational mode：For time-of-use tariffs situation, management is scheduled system energy according to load characteristic,
Off-peak electricity price period electric power storage, including directly storing and storing indirectly, energy-storage battery and electric vehicle are charged as electric energy and directly store
Mode is the electric energy side of storage indirectly to bootable preconditioning load management (to thermic load or to refrigeration duty preheating or cold treatment)
Formula；Rate period discharges during peak, and including directly discharging and indirect discharge, energy-storage battery and electric vehicle electric discharge are directly released for electric energy
It puts mode, be electricity to bootable preconditioning load management (basic application state drop volume processing is ensured to thermic load or to refrigeration duty)
It can indirect delivery mode.
Comfortable optimization operational mode：For living environment's comfort, management is monitored to domestic environment, with living environment
It is comfortably goal orientation, customizing requirement according to user realizes amenity requirement.In people's inactivity period to air themperature, wet
Degree, cleanliness factor guarantee (being embodied in the management of the electric appliances such as air-conditioning, humidifier, air purifier), to hot water and drinking water guarantee (body
Now to the management of the electric appliances such as water heater and water purifier), requirement high-preserved to food (is embodied to the electric appliances pipe such as refrigerator, electric cooker
Reason), by realizing living environment's comfort to appliance applications management.
Optimization and energy saving pattern：For under off-grid operation pattern, activation system optimization and energy saving pattern, according to energy storage
Battery surplus amount and guarantee duration requirement, predict energy-storage battery capacity and generation of electricity by new energy, differentiated control tune are carried out to load
Section (to type load (illumination, water purifier, refrigerator) is just needed preferentially to ensure, it must type load (wind to small-power according to power quantity predicting
Fan, clarifier) it is preferential ensure, high-power necessary type (electric cooker) is taken second place, to nonessential type load (air-conditioning, washing machine, hot water
Device, humidifier) excision), realize energy saving of system optimization operation.
As shown in figure 5, simultaneously off-network passes through to grid interface current transforming unit G_Inv monitoring judgements system；Grid-connected self-operating mould
Under formula, MGCC monitorings user interface serves layer instruction, when receiving economic optimization operational mode or comfortably optimize operational mode
During instruction, system performs corresponding Optimal Operation Strategies instruction into corresponding optimization operational mode；Under off-network self-operating pattern,
MGCC monitorings user interface serves layer instruction while monitors energy storage state and load power, when energy-storage battery electricity reaches lower limit valve
Either energy-storage battery electricity cannot meet the load power demand of specified duration or receive optimization and energy saving pattern and refers to value
When making, system performs optimization and energy saving policy instructions and enters optimization and energy saving pattern.
DC micro power grid system provided in an embodiment of the present invention realizes distributed energy and utilizes nearby, and direct current load is straight
It connects using direct current, realizes power generation and electricity consumption intelligentized control method, optimized by operational mode and meet diversified user's application demand.
It proposes DC micro power grid system Optimal Operation Strategies, is constrained in terms of economy, comfort, energy saving etc. 3, for not
System optimized operation is realized with application demand.
It should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions
It is performed in computer system, although also, show logical order in flow charts, it in some cases, can be with not
The order being same as herein performs shown or described step.
An embodiment of the present invention provides a kind of control device of DC micro power grid system, which can be used for performing this hair
The control method of the DC micro power grid system of bright embodiment.
Fig. 6 is a kind of schematic diagram of the control device of optional DC micro power grid system according to embodiments of the present invention, such as
Shown in Fig. 6, which includes：First opening unit 10, the second opening unit 20.
First opening unit 10, in the case where receiving instruction of being incorporated into the power networks, opening DC micro power grid system
Grid-connected self-operating pattern, wherein, direct-current grid includes distributed energy, DC load, energy-storage battery, grid-connecting apparatus.
Second opening unit 20, in the case where receiving off-grid operation instruction, opening DC micro power grid system
Off-network self-operating pattern, wherein, to distributed energy, energy storage electricity under grid-connected self-operating pattern and under off-network self-operating pattern
Pond, DC load do not do management and running.
Optionally, device further includes：First detection unit, scheduling unit.First detection unit, it is single for being opened first
After member 10 opens the grid-connected self-operating pattern of DC micro power grid system, detect whether to receive first mode operating instruction.It adjusts
Unit is spent, in the case where receiving first mode operating instruction, pipe to be scheduled to system energy according to load characteristic
Reason.
Optionally, scheduling unit includes：Electric power storage subelement, electric discharge subelement.Electric power storage subelement, for electricity price be less than etc.
In the case of the first default electricity price, electric power storage is carried out to energy-storage battery.Discharge subelement, pre- for being more than or equal to second in electricity price
If in the case of electricity price, discharging energy-storage battery, wherein, the second default electricity price is more than the first default electricity price.
Optionally, device further includes：Second detection unit, monitoring unit.Second detection unit, it is single for being opened first
After member 10 opens the grid-connected self-operating pattern of DC micro power grid system, detect whether to receive second mode operating instruction.Prison
Unit is surveyed, in the case where receiving second mode operating instruction, being monitored to domestic environment, according to monitoring result pair
DC load is adjusted.
Optionally, device further includes：3rd detection unit, differentiated control unit.3rd detection unit, for being opened second
After opening the off-network self-operating pattern that unit 20 opens DC micro power grid system, detect whether that receiving the third mode operation refers to
Order.Differentiated control unit, in the case where receiving the third mode operating instruction, classification pipe to be carried out to multiple DC loads
Reason.
The control device of DC micro power grid system includes processor and memory, and above-mentioned first opening unit 10, second open
It opens 20 grade of unit to store in memory as program unit, above procedure list stored in memory is performed by processor
Member realizes corresponding function.
Comprising kernel in processor, gone in memory to transfer corresponding program unit by kernel.Kernel can set one
Or more, the control method of DC micro power grid system is performed by adjusting kernel parameter.
Memory may include computer-readable medium in volatile memory, random access memory (RAM) and/
Or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM), memory includes at least one deposit
Store up chip.
An embodiment of the present invention provides a kind of storage mediums, are stored thereon with program, real when which is executed by processor
The control method of existing DC micro power grid system.
An embodiment of the present invention provides a kind of processor, processor is used for operation program, wherein, it is performed when program is run straight
Flow the control method of micro-grid system.
An embodiment of the present invention provides a kind of equipment, equipment includes processor, memory and storage on a memory and can
The program run on a processor, processor realize following steps when performing program：(method claim step, exclusive rights+from power).This
Equipment in text can be server, PC, PAD, mobile phone etc..
It is first when being performed on data processing equipment, being adapted for carrying out present invention also provides a kind of computer program product
The program of beginningization there are as below methods step：
In the case where receiving instruction of being incorporated into the power networks, the grid-connected self-operating pattern of DC micro power grid system is opened, wherein,
Direct-current grid includes distributed energy, DC load, energy-storage battery, grid-connecting apparatus；Receiving the feelings of off-grid operation instruction
Under condition, the off-network self-operating pattern of DC micro power grid system is opened, wherein, under grid-connected self-operating pattern and in off-network self-operating
Management and running are not done to distributed energy, energy-storage battery, DC load under pattern.
After the grid-connected self-operating pattern of DC micro power grid system is opened, detect whether that receiving first mode operation refers to
Order；In the case where receiving first mode operating instruction, management is scheduled system energy according to load characteristic.
In the case where electricity price is less than or equal to the first default electricity price, electric power storage is carried out to energy-storage battery；It is more than or equal in electricity price
In the case of second default electricity price, discharge energy-storage battery, wherein, the second default electricity price is more than the first default electricity price.
After the grid-connected self-operating pattern of DC micro power grid system is opened, detect whether that receiving second mode operation refers to
Order；In the case where receiving second mode operating instruction, domestic environment is monitored, according to monitoring result to DC load
It is adjusted.
After the off-network self-operating pattern of DC micro power grid system is opened, detect whether that receiving the third mode operation refers to
Order；In the case where receiving the third mode operating instruction, differentiated control is carried out to multiple DC loads.
It should be understood by those skilled in the art that, embodiments herein can be provided as method, system or computer program
Product.Therefore, the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware can be used in the application
Apply the form of example.Moreover, the computer for wherein including computer usable program code in one or more can be used in the application
The computer program production that usable storage medium is implemented on (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The application is with reference to the flow according to the method for the embodiment of the present application, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
The processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction generation being stored in the computer-readable memory includes referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to generate computer implemented processing, so as in computer or
The instruction offer performed on other programmable devices is used to implement in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
In a typical configuration, computing device includes one or more processors (CPU), input/output interface, net
Network interface and memory.
Memory may include computer-readable medium in volatile memory, random access memory (RAM) and/
Or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable Jie
The example of matter.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology come realize information store.Information can be computer-readable instruction, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase transition internal memory (PRAM), static RAM (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable
Programmable read only memory (EEPROM), fast flash memory bank or other memory techniques, read-only optical disc read-only memory (CD-ROM),
Digital versatile disc (DVD) or other optical storages, magnetic tape cassette, the storage of tape magnetic rigid disk or other magnetic storage apparatus
Or any other non-transmission medium, the information that can be accessed by a computing device available for storage.It defines, calculates according to herein
Machine readable medium does not include temporary computer readable media (transitory media), such as data-signal and carrier wave of modulation.
It should also be noted that, term " comprising ", "comprising" or its any other variant are intended to nonexcludability
Comprising so that process, method, commodity or equipment including a series of elements are not only including those elements, but also wrap
Include other elements that are not explicitly listed or further include for this process, method, commodity or equipment it is intrinsic will
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including element
Also there are other identical elements in process, method, commodity or equipment.
It will be understood by those skilled in the art that embodiments herein can be provided as method, system or computer program product.
Therefore, complete hardware embodiment, complete software embodiment or the embodiment in terms of combining software and hardware can be used in the application
Form.It is deposited moreover, the application can be used to can use in one or more computers for wherein including computer usable program code
The shape for the computer program product that storage media is implemented on (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Formula.
It these are only embodiments herein, be not limited to the application.To those skilled in the art,
The application can have various modifications and variations.All any modifications made within spirit herein and principle, equivalent substitution,
Improve etc., it should be included within the scope of claims hereof.
Claims (10)
1. a kind of control method of DC micro power grid system, which is characterized in that including：
In the case where receiving instruction of being incorporated into the power networks, the grid-connected self-operating pattern of DC micro power grid system is opened, wherein, it is described
Direct-current grid includes distributed energy, DC load, energy-storage battery, grid-connecting apparatus；
In the case where receiving off-grid operation instruction, the off-network self-operating pattern of the DC micro power grid system is opened, wherein,
Under the grid-connected self-operating pattern and under the off-network self-operating pattern to the distributed energy, the energy-storage battery,
The DC load does not do management and running.
2. control method according to claim 1, which is characterized in that opening the grid-connected self-operating of DC micro power grid system
After pattern, the method further includes：
It detects whether to receive first mode operating instruction；
In the case where receiving the first mode operating instruction, management is scheduled system energy according to load characteristic.
3. control method according to claim 2, which is characterized in that pipe is scheduled to system energy according to load characteristic
Reason, including：
In the case where electricity price is less than or equal to the first default electricity price, electric power storage is carried out to the energy-storage battery；
In the case where electricity price is more than or equal to the second default electricity price, discharge the energy-storage battery, wherein, described second is pre-
If electricity price is more than the described first default electricity price.
4. control method according to claim 1, which is characterized in that opening the grid-connected self-operating of DC micro power grid system
After pattern, the method further includes：
It detects whether to receive second mode operating instruction；
In the case where receiving the second mode operating instruction, domestic environment is monitored, according to monitoring result to institute
DC load is stated to be adjusted.
5. control method according to claim 1, which is characterized in that opening the off-network of the DC micro power grid system certainly
After operational mode, the method further includes：
It detects whether to receive the third mode operating instruction；
In the case where receiving the third mode operating instruction, differentiated control is carried out to multiple DC loads.
6. a kind of control device of DC micro power grid system, which is characterized in that including：
First opening unit, in the case where receiving instruction of being incorporated into the power networks, open DC micro power grid system it is grid-connected from
Operational mode, wherein, the direct-current grid includes distributed energy, DC load, energy-storage battery, grid-connecting apparatus；
Second opening unit, for receive off-grid operation instruction in the case of, open the DC micro power grid system from
Net self-operating pattern, wherein, to the distribution under the grid-connected self-operating pattern and under the off-network self-operating pattern
The energy, the energy-storage battery, the DC load do not do management and running.
7. control device according to claim 6, which is characterized in that described device further includes：
First detection unit, for first opening unit open DC micro power grid system grid-connected self-operating pattern it
Afterwards, detect whether to receive first mode operating instruction；
Scheduling unit, in the case where receiving the first mode operating instruction, according to load characteristic to system energy
It is scheduled management.
8. control device according to claim 7, which is characterized in that the scheduling unit includes：
In the case of being less than or equal to the first default electricity price in electricity price, electric power storage is carried out to the energy-storage battery for electric power storage subelement；
Discharge subelement, in the case of being more than or equal to the second default electricity price in electricity price, discharges the energy-storage battery,
Wherein, the described second default electricity price is more than the described first default electricity price.
9. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein, it is run in described program
When control the storage medium where DC micro power grid system in equipment perform claim requirement 1 to 5 described in any one control
Method processed.
10. a kind of processor, which is characterized in that the processor is used for operation program, wherein, right of execution when described program is run
Profit requires the control method of the DC micro power grid system described in any one in 1 to 5.
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| CN201711174227.8A CN108063438B (en) | 2017-11-22 | 2017-11-22 | Control method and device for direct-current micro-grid system |
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| CN201711174227.8A CN108063438B (en) | 2017-11-22 | 2017-11-22 | Control method and device for direct-current micro-grid system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109274087A (en) * | 2018-10-12 | 2019-01-25 | 珠海格力电器股份有限公司 | The mode of connection of direct current household electricity system and the household electrical appliance based on the system |
| CN114094594A (en) * | 2021-11-24 | 2022-02-25 | 国网河北省电力有限公司经济技术研究院 | Transformer substation direct current load grading control method and device and terminal equipment |
| CN116979577A (en) * | 2023-06-14 | 2023-10-31 | 上海凯营新能源技术有限公司 | Micro-grid control system, method, equipment and medium |
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| CN102347620A (en) * | 2010-07-30 | 2012-02-08 | 北京市电力公司 | Micro grid control method |
| CN107194516A (en) * | 2017-06-07 | 2017-09-22 | 华北电力大学 | Multi-energy complementary micro-grid distributed optimization dispatching method containing multiagent |
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| CN102347620A (en) * | 2010-07-30 | 2012-02-08 | 北京市电力公司 | Micro grid control method |
| CN107194516A (en) * | 2017-06-07 | 2017-09-22 | 华北电力大学 | Multi-energy complementary micro-grid distributed optimization dispatching method containing multiagent |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109274087A (en) * | 2018-10-12 | 2019-01-25 | 珠海格力电器股份有限公司 | The mode of connection of direct current household electricity system and the household electrical appliance based on the system |
| CN114094594A (en) * | 2021-11-24 | 2022-02-25 | 国网河北省电力有限公司经济技术研究院 | Transformer substation direct current load grading control method and device and terminal equipment |
| CN114094594B (en) * | 2021-11-24 | 2024-04-19 | 国网河北省电力有限公司经济技术研究院 | Hierarchical control method and device for direct current load of transformer substation and terminal equipment |
| CN116979577A (en) * | 2023-06-14 | 2023-10-31 | 上海凯营新能源技术有限公司 | Micro-grid control system, method, equipment and medium |
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| CN108063438B (en) | 2020-11-10 |
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