CN107346897A - A kind of photovoltaic generation off-network control system and method based on power detection - Google Patents

A kind of photovoltaic generation off-network control system and method based on power detection Download PDF

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Publication number
CN107346897A
CN107346897A CN201710534648.0A CN201710534648A CN107346897A CN 107346897 A CN107346897 A CN 107346897A CN 201710534648 A CN201710534648 A CN 201710534648A CN 107346897 A CN107346897 A CN 107346897A
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China
Prior art keywords
power
sub
module
line
relay
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CN201710534648.0A
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Chinese (zh)
Inventor
刘文军
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Guangzhou City Zheming Hui Technology Co Ltd
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Guangzhou City Zheming Hui Technology Co Ltd
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Priority to CN201710534648.0A priority Critical patent/CN107346897A/en
Publication of CN107346897A publication Critical patent/CN107346897A/en
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    • H02J3/383—
    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • 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
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/10—The network having a local or delimited stationary reach
    • H02J2310/12—The local stationary network supplying a household or a building
    • H02J2310/14—The load or loads being home appliances
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/242—Home appliances

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The invention provides a kind of photovoltaic generation off-network control system based on power detection, including photovoltaic generating module, intelligent ammeter module, total supply line and the first relay module, wherein, first relay module is used for when civil power has power supply, first relay module is laid and is connected to the power supply of the civil power, automatic when civil power is in power-off to disconnect and individually powered by the photovoltaic generating module；The present invention also provide a kind of photovoltaic optimal power supply plan method, can in photovoltaic power supply after Automatic sieve select the high electrical equipment of power demands.The present invention can pass through the electric power thus supplied automatic switchover civil power or photovoltaic power supply of automatic decision user, and the power supply of all high-power electric appliances can be automatically cut off when starting photovoltaic power supply, photovoltaic power supply effect is improved, and what can also be inputted on the subscriber terminal according to user instructs to be turned on and off the power supply on any sub-line road.

Description

A kind of photovoltaic generation off-network control system and method based on power detection
Technical field
The present invention relates to photovoltaic application field, more particularly to a kind of photovoltaic generation off-network control system based on power detection And method.
Background technology
With the continuous generation of world energy sources exhaustion problem, the development and utilization of new energy seem further important, and in group In many daily lifes, a kind of photovoltaic power train of green energy resource in city and rural area as very easy acquisition and reliably Just constantly being popularized in system, government is also proposed a series of preferential policy to promote the development of this green energy resource of photovoltaic, Corresponding income can be obtained by such as feeding back electricity power supply.
In the prior art, photovoltaic generating system is generally fitted provided with intelligent electric meter, the photovoltaic power generation quantity of counting user, so And in order to ensure count effect reliability, the intelligent electric meter must in civil power normal work could normal work, work as city During electricity power-off, the intelligent electric meter is stopped so that photovoltaic generating system can not be customer power supply, very inconvenient.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of photovoltaic generation off-network based on power detection to control system System and method, photovoltaic generating system and civil power are combined, according to the electric power thus supplied automatic switchover civil power or photovoltaic of user Power supply, the power supply of all high-power electric appliances can be disconnected automatically in photovoltaic power supply, improve power consumption efficiency, and in photovoltaic power supply When can automatic decision go out the big high-power electric appliance of demand and recover the power supply of the electrical appliance；Can also according to user with What is inputted in the terminal of family instructs to be turned on and off the power supply on any sub-line road.
In a first aspect, the present invention includes a kind of photovoltaic generation off-network control system based on power detection, including photovoltaic hair Electric module, intelligent ammeter module, total power supply circuit, the first relay module, controller and it is at least one be suitable to access electricity consumption bear The sub- line module carried
Wherein, each sub- line module includes the 3rd relay and power meter；
The photovoltaic generating module is connected with the first end of first relay, the control of first relay module Duan Yu cities are electrically connected；Second end of first relay module is connected with the first end of the intelligent ammeter module；Described 3rd end of one relay module is connected with the first end of total power supply circuit；Second Duan Yu cities of the intelligent ammeter module It is electrically connected；3rd end of the intelligent ammeter module is connected with the second end of total power supply circuit；The first of the power meter End is connected with the first end at the 3rd relay end, the second end of the 3rd relay and the 3rd end of total supply line It is connected, the first end of the controller is connected with the 4th end of first relay module, and the 3rd of the 3rd relay the End is connected with the second end of the controller, and the 3rd end of the power meter is connected with the 3rd end of the controller；
It is direct current that the photovoltaic panel group, which is used for photovoltaic conversion, and is transferred to the inverter module；
The inverter module is used to direct current being converted to alternating current, and is transferred to first relay module；
When the control terminal of first relay module receives electric signal, the first end of first relay module Connected with the second end of the first relay module；Otherwise, the first end of first relay module and first relay The 3rd end connection of module；
The intelligent ammeter module is used for the civil power power consumption for recording user, and the intelligent ammeter module is additionally operable to record and used The photovoltaic power generation quantity at family and the feedback electricity of user；
The power meter is used for the current power for obtaining the sub- line module, and is sent to the controller；
When the first end of the controller gets high level signal, the controller is additionally operable to receive each work( The current power of the sub- line module transmitted by rate meter；
The controller is additionally operable to, when the power of the sub- line module received is more than predetermined power, control the son The 3rd relay of line module disconnects, and then cuts off the power supply of the sub- line module.
In an embodiment of the present invention, described a kind of photovoltaic generation off-network control system based on power detection, it is special Sign is that the photovoltaic generating module includes photovoltaic panel group module and inverter module；
Photovoltaic teams and groups module is connected with the first end of the inverter module, the second end of the inverter module with The first end of first relay is connected.
In one embodiment of the invention, a kind of photovoltaic generation off-network control system based on power detection is also wrapped Include the second relay module；
The first end of second relay module is connected with the 3rd end of the intelligent ammeter module；Second relay The control terminal of device module is electrically connected with city, and the second end of second relay module is connected with the second end of total power supply circuit；
When the control terminal of second relay module receives electric signal, the first end of second relay module Connected with the second end, otherwise, first end and the second end of second relay module disconnect.
In an embodiment of the present invention, a kind of photovoltaic generation off-network control system based on power detection also includes using Family terminal；
The user terminal is used to provide a user control signal input interface, and the control signal that user is inputted is sent out It is sent to controller；
The controller controls the 3rd relay of corresponding sub- line module according to the control signal received Open or close, and then control the power supply of the sub- line module.
In an embodiment of the present invention, the user terminal includes but is not limited to mobile phone, tablet personal computer and notebook electricity It is any one or more in brain equipment.
In an embodiment of the present invention, the 4th end of the controller is connected with the 3rd end of the inverter；Described in note The power of i-th sub- line module is calculated as the i-th power meter, remembers working as the described i-th sub- line module acquired in i-th power meter Preceding power is the i-th power, and i ∈ [1, n], n are the total number of the sub- line module；
The controller includes memory, at least one processor and executable code, and the executable code is stored in In the memory and it is configured to by least one computing device, to realize following operation：
The photovoltaic generation general power of the photovoltaic panel group is obtained, and the acquired photovoltaic generation general power is sent to The controller；
Obtain the i-th power transmitted by i-th power meter；
According to the power sum of each sub- line module described in acquired i-th power calculation, sub-line road mould is designated as Block general power；
Compare the photovoltaic generation general power and the sub- line module general power；
Judge when the photovoltaic generation general power is less than the sub- line module general power；
Obtain the average generated output of history of photovoltaic generation；
The power weight coefficient on the i-th sub-line road, note are generated according to the average generated output of the history and i-th power For the i-th power weight coefficient；
The average usage time of history on each sub-line road is obtained, and remembers that the history on the i-th acquired sub-line road is averaged Usage time was the i-th time；
The power consumption that the i-th sub-line road is generated according to i-th power, the i-th power weight coefficient and i-th time obtains Point, and it is designated as the i-th power consumption score；
The score rank on the i-th sub-line road is generated according to the i-th power consumption score；
Controlled according to the score rank on each sub-line road the 3rd relay of each sub- line module open or Close.
Second aspect, present invention additionally comprises a kind of photovoltaic generation off-network control method based on power detection, its step is such as Under：
Obtain the photovoltaic generation general power of photovoltaic generating module；
The power of each sub- line module is obtained respectively, and the power of the i-th sub- line module acquired in note is the i-th work( Rate, i ∈ [1, n], n are the total number of the sub- line module；
When the photovoltaic generation general power is less than the power sum of each sub- line module；
Obtain the average generated output of history of photovoltaic generating module；
The power weight coefficient on the i-th sub-line road is generated according to the average generated output of the history and the i-th power, is designated as the I power weight coefficients；
The average usage time of history on each sub-line road is obtained, and remembers that the history on the i-th acquired sub-line road averagely uses Time was the i-th time；
The power consumption that the i-th sub-line road is generated according to i-th power, the i-th power weight coefficient and i-th time obtains Point, and it is designated as the i-th power consumption score；
The score rank on the i-th sub-line road is generated according to the i-th power consumption score；
The power supply or power-off of each sub- line module are controlled according to the score rank on each sub-line road.
In an embodiment of the present invention, it is described that i-th sub-line is generated according to the average generated output of the history and the i-th power The power weight coefficient on road, the i-th power weight coefficient is designated as, is specifically included：
The average generated output of history of photovoltaic generating module is obtained, is designated as Pf；
According to the average generated output P of the historyfAnd i-th power PiThe power weight coefficient on the i-th sub-line road is generated, is designated as I-th power weight coefficient Wi, Wi=Pi/Pf。
In an embodiment of the present invention, it is described according to i-th power, the i-th power weight coefficient and i-th time The power consumption score on the i-th sub-line road is generated, and is designated as the i-th power consumption score, is specifically included：
Remember that the power consumption on the i-th sub-line road is scored at psi；
According to the i-th power weight coefficient Wi, i-th power PiAnd i-th time TiGenerate the i-th sub-line road Power consumption score, and be designated as the i-th power consumption score psi, psi=Pi*Ti*Wi。
In an embodiment of the present invention, a kind of photovoltaic generation off-network control method based on power detection also includes：
When photovoltaic generation general power is more than each sub- line power sum；
Give all sub- line powerings simultaneously.
The third aspect, present invention additionally comprises a kind of controller, the controller is suitable to be configured at photovoltaic generation function Power system in, wherein, the power system include be used for the controller send photovoltaic generation general power photovoltaic send out Electric module, and at least one sub- line module, the controller respectively with the photovoltaic generating module and the sub- line module It is connected；
The controller module includes memory, at least one processor and executable code, and the executable code is deposited It is stored in the memory and is configured to by least one computing device, realizes that described one kind is examined based on power The photovoltaic generation off-network control method of survey.
Beneficial effects of the present invention：Controlled by a kind of photovoltaic generation off-network based on power detection provided by the present invention System and method, the photovoltaic generating system in user family can be combined with civil power, and intelligently according to the power supply of user Situation automatic switchover civil power or photovoltaic power supply, the power supply of all high-power electric appliances can also can be automatically disconnected in photovoltaic power supply, Automatic decision goes out the big high-power electric appliance of demand and recovers the power supply of the electrical appliance, so as to improve power consumption efficiency；User is also The power supply on any sub-line road can be turned on and off by the instruction inputted on the subscriber terminal.
Brief description of the drawings
Fig. 1 is a kind of photovoltaic generation off-network Control system architecture signal based on power detection in one embodiment of the invention Figure；
Fig. 2 is a kind of photovoltaic generation off-network Control system architecture signal based on power detection in one embodiment of the invention Figure；
Fig. 3 is a kind of photovoltaic generation off-network Control system architecture signal based on power detection in one embodiment of the invention Figure；
Fig. 4 is a kind of photovoltaic generation off-network Control system architecture signal based on power detection in one embodiment of the invention Figure；
The step of Fig. 5 is a kind of photovoltaic generation off-network control method based on power detection in one embodiment of the invention is illustrated Figure.
Embodiment
It should be noted that in the present invention, term " first ", " second " are only used for describing purpose, and it is not intended that Indicate or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " are defined One or more this feature can be expressed or be implicitly included to two " feature.In the description of the invention, " multiple " Two or more are meant that, unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；It can be machine Tool connects or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be two members Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be Concrete meaning in bright.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under " Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special Sign is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of Fisrt feature level height is less than second feature.
Below in conjunction with the accompanying drawings and specific embodiment the present invention will be further described, illustrative examples therein and Illustrate only to be used for explaining the present invention, but it is not as a limitation of the invention.
As shown in figure 1, be the structural representation of the present invention, a kind of photovoltaic generation off-network control system based on power detection System, including photovoltaic generating module 100, intelligent ammeter module 200, the relay module 400 of total power supply circuit 300 and first；
Wherein, photovoltaic generating module 100 includes photovoltaic panel group module 110 and inverter module 120.
Photovoltaic panel group 110 is connected with the direct-flow input end of inverter module 120；The ac output end of inverter module 120 It is connected with the first end of the first relay module 400, the control terminal of the first relay module 400 is electrically connected with city；First relay Second end of device module 400 is connected with the first end of intelligent ammeter module 200；3rd end of the first relay module 400 with it is total The first end of power supply circuit 300 is connected；Second Duan Yu cities of intelligent ammeter module 200 are electrically connected；The of intelligent ammeter module 200 Three ends are connected with the second end of total power supply circuit 300；
It is direct current that photovoltaic panel group 110, which is used for photovoltaic conversion, and is transferred to inverter module 200；
Inverter module 120 is used to direct current being converted to alternating current, and is transferred to the first relay module 400；
When the control terminal of the first relay module 400 receives electric signal, the first end of the first relay module 400 with The second end connection of first relay module 400；Otherwise, the first end of the first relay module 400 and the first relay module 400 the 3rd end connection.
Intelligent ammeter module 200 is used for the civil power power consumption for recording user, and intelligent ammeter module 200 is additionally operable to record user Photovoltaic power generation quantity and user feedback electricity.
In one embodiment of the invention, as shown in Fig. 2 also including the second relay module 500；
The first end of second relay module 500 is connected with the 3rd end of intelligent ammeter module 200；Second relay module 500 control terminal is electrically connected with city, and the second end of the second relay module 500 is connected with the second end of total power supply circuit 300.
When the control terminal of the second relay module 500 receives electric signal, the first end of the second relay module 500 with Second end connects；Otherwise, the first end of second relay module 500 disconnects with the second end.In an embodiment of the present invention, As shown in figure 3, a kind of photovoltaic generation off-network control system based on power detection also includes loading several sub-line road moulds Block 600 and controller 700；
Wherein, as shown in figure 4, each sub- line module 600 includes the 3rd relay 610 and power meter 620
The first end of power meter 620 is connected with the first end of the 3rd relay, the second end of the 3rd relay and total power supply 3rd end of circuit is connected, and the first end of controller 700 is connected with the 4th end of the first relay module 400, the 3rd relay 610 the 3rd end is connected with the second end of controller 700, and the 3rd end of power meter 620 is connected with the 3rd end of controller 700.
Power meter 620 is used for the current power for obtaining the sub- line module 600, and is sent to controller 700；
When the first end of controller 700 gets high level signal, controller 700 is additionally operable to receive each power meter The current power of sub- line module 600 transmitted by 620；
Controller 700 is additionally operable to, when the power of the sub- line module 600 received is more than predetermined power, control the sub-line 3rd relay 610 of road module 600 disconnects, and then cuts off the power supply of the sub- line module 600.
In a concrete application scene of the invention, a kind of photovoltaic generation off-network control system bag based on power detection Two sub- line modules 600 are included, respectively illuminate sub-line road and air-conditioning sub-line road；The predetermined power is 200W；
When civil power is stopped power supply, first end and the end of the first relay module 400 the 4th of the first relay module 400 connect Logical, the current power for now illuminating the power meter acquisition illuminating line on sub-line road is 50W；The power meter on air-conditioning sub-line road obtains empty The current power on line transfer road is 300W；
The power that controller 700 gets air-conditioning system is 300W, and more than predetermined power 200W, then controller 700 controls 3rd relay of air-conditioning system disconnects, so as to disconnect the power supply of air conditioner load.
In an embodiment of the present invention, a kind of photovoltaic generation off-network control system based on power detection also includes using Family terminal；
The user terminal is used to provide a user control signal input interface, and the control signal that user is inputted is sent out It is sent to controller 700；
Controller 700 controls the 3rd relay 610 of corresponding sub- line module 600 according to the control signal received Open or close, and then control the power supply of sub- line module 600.
As user by mobile phone sends the road out code of air-conditioning sub-line to controller 700, controller 700 receives described After the road out code of air-conditioning sub-line, the 3rd relay on control air-conditioning sub-line road disconnects, the power supply on cut-out air-conditioning sub-line road.
It is understood that the user terminal includes but is not limited to mobile phone, tablet personal computer and notebook computer equipment In it is any one or more.
In an embodiment of the present invention, the controller 700 also obtains including power computation module, the average generated output of history Take, weight coefficient generation module, history average usage time acquisition module, power consumption points calculating module and score rank generate Module；The power meter 620 for remembering the i-th sub- line module is the i-th power meter, the i-th sub- line module acquired in the i-th power meter of note Current power is the i-th power, and i ∈ [1, n], n are the total number of the sub- line module；
4th end of controller 700 is connected with the 3rd end of inverter 120；
Inverter 120 is additionally operable to obtain the photovoltaic generation general power of photovoltaic panel group 110, and acquired photovoltaic generation is total Power is sent to controller 700；
The power computation module is used for the i-th power transmitted by the i-th power meter of reception；
The power computation module is used for the power sum according to the acquired each sub- line module of the i-th power calculation, It is designated as sub- line module general power；
The power computation module is additionally operable to photovoltaic generation general power described in comparison and the sub- line module general power；
When sub- line module general power described in the power computation module judges the photovoltaic generation general power；
The average generated output acquisition module of the history obtains the average generated output of history of photovoltaic generating module；
The weight coefficient generation module is used for according to the average generated output of the history and of the i-th power generation i-th The power weight coefficient of circuit, it is designated as the i-th power weight coefficient；
The average usage time acquisition module of the history is used for the average usage time of history for obtaining each sub-line road, and remembers The average usage time of the history on the i-th acquired sub-line road was the i-th time；
The power consumption points calculating module be used for according to i-th power, the i-th power weight coefficient and it is described i-th when Between generate the power consumption score on the i-th sub-line road, and be designated as the i-th power consumption score；
The score rank generation module is also with the score rank that the i-th sub-line road is generated according to the i-th power consumption score；
The controller 700 also controls each sub- line module 600 with according to the score rank on each sub-line road 3rd relay 610 being opened or closing.
In an of the invention concrete application scene, the photovoltaic generation general power is 800W, the general power acquisition module, Average generated output acquisitions of power computation module, history, weight coefficient generation module, history be averaged usage time acquisition module, Power consumption points calculating module and score rank generation module are integrated among controller 700；The history of the photovoltaic generation is put down Equal generated output be 900W, and the sub-line road shares four, respectively illumination sub-line road, refrigerator sub-line road, TV sub-line road with And computer sub-line road, the sub- line power of the illumination is 60W, and the sub- line power of refrigerator is 500W, the TV sub-line road Power is 200W, and the sub- line power of computer is 300W；
The weight coefficient that then the illumination sub-circuit is calculated in controller 700 is 0.06, the power on the refrigerator sub-line road Weight coefficient is 0.5, and the weight coefficient on the TV sub-line road is 0.2, and the weight coefficient on the computer sub-line road is 0.3；
The history that controller 700 obtains illumination sub-line road, refrigerator sub-line road, TV sub-line road and computer sub-line road is averaged Usage time, respectively 3 hours, 2 hours, 2 hours and 5 hours；Then controller 700 calculates the illumination sub-line road and ice The power consumption score of chest circuit, the power consumption that the illumination sub-line road is calculated in controller 700 are scored at 10.8, refrigerator The power consumption of circuit is scored at=500, and the power consumption on the TV sub-line road is scored at 80, and the computer sub-line road is scored at 450
Then controller 700 judges the score rank of the ascending generation of power consumption score on each sub-line road for described in 1. Illuminate refrigerator sub-line road described in computer sub-line road 4. described in TV sub-line road 3. described in sub-line road 2.；
Then controller 700 is powered to each sub-line road successively according to the score rank on each sub-line road；
Controller 700 controls the relay of illumination to open, and to the sub- line powering of illumination, and is sent out according to photovoltaic It is 720W that the photovoltaic generation general power 800W of the electric module and power 60W on the illumination sub-line road, which calculates dump power,；When described When dump power is more than zero, controller 700 obtains the power on the sub-line road of next ranking, i.e., the power on described TV sub-line road 200W, when the dump power is more than the power on the TV sub-line road, controller 700 controls the relay on TV sub-line road Open, to the sub- line powering of the TV, meanwhile, controller 700 updates dump power according to the power on the TV sub-line road For 520W；When the dump power is more than zero, controller 700 obtains the power on the sub-line road of next ranking, i.e., described computer The power 300W on sub-line road, when the dump power is more than the power on the TV sub-line road, controller 700 controls the electricity The relay of brain circuit is opened, to the sub- line powering of the computer, meanwhile, controller 700 is according to the TV sub-line road Power renewal dump power is 220W；When the dump power is more than zero, controller 700 obtains the sub-line road of next ranking Power, i.e., the power 500W on described refrigerator sub-line road, when the dump power is less than the power on the TV sub-line road, control Device 700 controls the relay on the computer sub-line road to disconnect, not to the refrigerator sub-line way line powering.
Second aspect, present invention additionally comprises a kind of photovoltaic generation off-network control method based on power detection, such as Fig. 5 institutes Show, its step is as follows：
S110：Obtain the photovoltaic generation general power of photovoltaic generating module；
S120：Obtain the power of each sub- line module respectively, and remember the power of the i-th acquired sub- line module for the I power, i ∈ [1, n], n are the total number of the sub- line module；
S130:When the photovoltaic generation general power is less than the power sum of each sub- line module；
S140：Obtain the average generated output of history of photovoltaic generating module；
S150：The power weight coefficient on the i-th sub-line road is generated according to the average generated output of the history and the i-th power, It is designated as the i-th power weight coefficient；
S160：The average usage time of history on each sub-line road is obtained, and remembers that the history on the i-th acquired sub-line road is averaged Usage time was the i-th time；
S170：The work(on the i-th sub-line road is generated according to i-th power, the i-th power weight coefficient and i-th time Score is consumed, and is designated as the i-th power consumption score；
S180：The score rank on the i-th sub-line road is generated according to the i-th power consumption score；
S190：The power supply or power-off of each sub- line module are controlled according to the score rank on each sub-line road.
In an embodiment of the present invention, step S150 is specifically included：
210：The average generated output of history of photovoltaic generating module is obtained, is designated as Pf；
220：According to the average generated output P of the historyfAnd i-th power PiThe power weight coefficient on the i-th sub-line road is generated, It is designated as the i-th power weight coefficient Wi, Wi=Pi/Pf。
In an embodiment of the present invention, step S170 is specifically included：
310：Remember that the power consumption on the i-th sub-line road is scored at psi；
320：According to the i-th power weight coefficient Wi, i-th power PiAnd i-th time TiOf generation i-th The power consumption score of circuit, and it is designated as the i-th power consumption score psi, psi=Pi*Ti*Wi。
In an of the invention concrete application scene, the photovoltaic generation general power is 800W, the history of the photovoltaic generation Average generated output is 900W, and the sub-line road shares four, respectively illuminates sub-line road, refrigerator sub-line road, TV sub-line road And computer sub-line road, the sub- line power of the illumination is 60W, and the sub- line power of refrigerator is 500W, the TV sub-line Road power is 200W, and the sub- line power of computer is 300W；
The weight coefficient that then the illumination sub-circuit is calculated in controller 700 is 60/900=0.06, refrigerator The weight coefficient of circuit is 500/900=0.5, and the weight coefficient on the TV sub-line road is 200/900=0.2, the computer The weight coefficient on sub-line road is 300/900=0.3；
The history that controller 700 obtains illumination sub-line road, refrigerator sub-line road, TV sub-line road and computer sub-line road is averaged Usage time, respectively 3 hours, 2 hours, 2 hours and 5 hours；Then controller 700 calculates the illumination sub-line road and ice The power consumption score of chest circuit, the power consumption that the illumination sub-line road is calculated in controller 700 are scored at 60*3*0.06= 10.8, the power consumption on the refrigerator sub-line road is scored at 500*2*0.5=500, and the power consumption on the TV sub-line road is scored at 200* 2*0.2=80, the computer sub-line road are scored at 300*5*0.3=450
Then controller 700 judges the score rank of the ascending generation of power consumption score on each sub-line road for described in 1. Illuminate refrigerator sub-line road described in computer sub-line road 4. described in TV sub-line road 3. described in sub-line road 2.；
Then controller 700 is powered to each sub-line road successively according to the score rank on each sub-line road；
Controller 700 controls the relay of illumination to open, and to the sub- line powering of illumination, and is sent out according to photovoltaic It is 720W that the photovoltaic generation general power 800W of the electric module and power 60W on the illumination sub-line road, which calculates dump power,；When described When dump power is more than zero, controller 700 obtains the power on the sub-line road of next ranking, i.e., the power on described TV sub-line road 200W, when the dump power is more than the power on the TV sub-line road, controller 700 controls the relay on TV sub-line road Open, to the sub- line powering of the TV, meanwhile, controller 700 updates dump power according to the power on the TV sub-line road For 520W；When the dump power is more than zero, controller 700 obtains the power on the sub-line road of next ranking, i.e., described computer The power 300W on sub-line road, when the dump power is more than the power on the TV sub-line road, controller 700 controls the electricity The relay of brain circuit is opened, to the sub- line powering of the computer, meanwhile, controller 700 is according to the TV sub-line road Power renewal dump power is 220W；When the dump power is more than zero, controller 700 obtains the sub-line road of next ranking Power, i.e., the power 500W on described refrigerator sub-line road, when the dump power is less than the power on the TV sub-line road, control Device 700 controls the relay on the computer sub-line road to disconnect, not to the refrigerator sub-line way line powering.
In an embodiment of the present invention, a kind of photovoltaic generation off-network control method based on power detection also includes：
S410：When photovoltaic generating module general power is more than each sub- line power sum；
S420：Give all sub- line powerings simultaneously.
The third aspect, present invention additionally comprises a kind of controller, the controller is used to realize that above-mentioned first aspect is previously mentioned A kind of photovoltaic generation off-network control system based on power detection and one kind for being previously mentioned of above-mentioned second aspect be based on power The photovoltaic generation off-network control method of detection.
Obviously, above-described embodiment expresses technical solution of the present invention example just for the sake of clearer, rather than right The restriction of embodiment of the present invention.To those skilled in the art, can also make on the basis of the above description other Various forms of changes or variation, without departing from the inventive concept of the premise, these belong to protection scope of the present invention.Cause The protection domain of this patent of the present invention should be determined by the appended claims.

Claims (10)

1. a kind of photovoltaic generation off-network control system based on power detection, it is characterised in that including photovoltaic generating module, intelligence Meter module, total power supply circuit, the first relay module, controller and at least one sub-line road mould suitable for access electric loading Block；
Wherein, each sub- line module includes the 3rd relay and power meter；
The photovoltaic generating module is connected with the first end of first relay, the control terminal and civil power of first relay It is connected；Second end of first relay is connected with the first end of the intelligent ammeter module；First relay module The 3rd end be connected with the first end of total power supply circuit；Second Duan Yu cities of the intelligent ammeter module are electrically connected；It is described 3rd end of intelligent ammeter module is connected with the second end of total power supply circuit；Second end of the power meter and the described 3rd The first end at relay end is connected, and the second end of the 3rd relay is connected with the 3rd end of total supply line, the control The first end of device processed is connected with the 4th end of first relay module, the 3rd end and the control of the 3rd relay Second end of device is connected, and the 3rd end of the power meter is connected with the 3rd end of the controller；
When the control terminal of first relay module receives electric signal, the first end of first relay module and the The second end connection of one relay module, otherwise, the first end of first relay module and first relay module The 3rd end connection；
The power meter is used for the current power for obtaining the sub- line module, and is sent to the controller；
When the first end of the controller gets high level signal, the controller is used to receive each power meter institute The current power of the sub- line module sent；
The controller is additionally operable to, when the power of the sub- line module received is more than predetermined power, control the sub-line road The 3rd relay of module disconnects.
2. a kind of photovoltaic generation off-network control system based on power detection as claimed in claim 1, it is characterised in that described Photovoltaic generating module includes photovoltaic panel group module and inverter module；
Photovoltaic teams and groups module is connected with the first end of the inverter module, the second end of the inverter module with it is described The first end of first relay is connected.
3. a kind of photovoltaic generation off-network control system based on power detection as claimed in claim 1, it is characterised in that described Photovoltaic generation off-network control system based on power detection also includes the second relay module；
The first end of second relay module is connected with the 3rd end of the intelligent ammeter module；The second relay mould The control terminal of block is electrically connected with city, and the second end of second relay module is connected with the second end of total power supply circuit；
When the control terminal of second relay module receives electric signal, the first end of second relay module and the Two ends connect, and otherwise, first end and the second end of second relay module disconnect.
4. a kind of photovoltaic generation off-network control system based on power detection as claimed in claim 1, it is characterised in that described Photovoltaic generation off-network control system based on power detection also includes user terminal；
The user terminal is used to provide a user control signal input interface, and the control signal that user is inputted is sent to Controller；
The controller is additionally operable to the 3rd relay according to the received corresponding sub- line module of control signal control Device being opened or closing.
5. a kind of photovoltaic generation off-network control system based on power detection as claimed in claim 4, it is characterised in that described User terminal includes the one or more in mobile phone, tablet personal computer and notebook computer equipment.
6. a kind of photovoltaic generation off-network control system based on power detection as claimed in claim 1, it is characterised in that described 4th end of controller is connected with the 3rd end of the inverter；Remember that the power of the described i-th sub- line module is calculated as the i-th power Meter, the current power for remembering the described i-th sub- line module acquired in i-th power meter is the i-th power, and i ∈ [1, n], n are institute The total number of sub- line module is stated, n is the natural number not less than one；
The controller includes memory, at least one processor and executable code, and the executable code is stored in described In memory and it is configured to by least one computing device, to realize following operation：
Obtain the photovoltaic generation general power that the photovoltaic panel group is sent；
Obtain the i-th power transmitted by i-th power meter；
According to the power sum of each sub- line module described in acquired i-th power calculation, it is total to be designated as sub- line module Power；
Compare the photovoltaic generation general power and the sub- line module general power；
Judge when the photovoltaic generation general power is less than the sub- line module general power；
Obtain the average generated output of history of photovoltaic generation；
The power weight coefficient on the i-th sub-line road is generated according to the average generated output of the history and i-th power, is designated as the I power weight coefficients；
The average usage time of history on each sub-line road is obtained, and remembers that the history on the i-th acquired sub-line road averagely uses Time was the i-th time；
The power consumption score on the i-th sub-line road is generated according to i-th power, the i-th power weight coefficient and i-th time, and It is designated as the i-th power consumption score；
The score rank on the i-th sub-line road is generated according to the i-th power consumption score；
Opening or closing for the 3rd relay of each sub- line module is controlled according to the score rank on each sub-line road.
A kind of 7. photovoltaic generation off-network control method based on power detection, it is characterised in that including：
Obtain the photovoltaic generation general power of photovoltaic generating module；
Obtain the power of each sub- line module respectively, and remember that the power of the i-th acquired sub- line module is the i-th power, i ∈ [1, n], n are the total number of the sub- line module；
When the photovoltaic generation general power is less than the power sum of each sub- line module；
Obtain the average generated output of history of photovoltaic generating module；
The power weight coefficient on the i-th sub-line road is generated according to the average generated output of the history and the i-th power, is designated as the i-th work( Rate weight coefficient；
The average usage time of history on each sub-line road is obtained, and remembers the average usage time of history on the i-th acquired sub-line road For the i-th time；
The power consumption score on the i-th sub-line road is generated according to i-th power, the i-th power weight coefficient and i-th time, and It is designated as the i-th power consumption score；
The score rank on the i-th sub-line road is generated according to the i-th power consumption score；
The power supply or power-off of each sub- line module are controlled according to the score rank on each sub-line road.
8. a kind of photovoltaic generation off-network control method based on power detection as claimed in claim 7, it is characterised in that described The power weight coefficient on the i-th sub-line road is generated according to the average generated output of the history and the i-th power, is designated as the i-th power power Weight coefficient, is specifically included：
The average generated output of history of photovoltaic generating module is obtained, is designated as Pf；
According to the average generated output P of the historyfAnd i-th power PiThe power weight coefficient on the i-th sub-line road is generated, is designated as the i-th work( Rate weight coefficient Wi, Wi=Pi/Pf。
9. a kind of photovoltaic generation off-network control method based on power detection as claimed in claim 8, it is characterised in that described The power consumption score on the i-th sub-line road is generated according to i-th power, the i-th power weight coefficient and i-th time, and is designated as I-th power consumption score, is specifically included：
Remember that the power consumption on the i-th sub-line road is scored at psi；
According to the i-th power weight coefficient Wi, i-th power PiAnd i-th time TiGenerate the work(on the i-th sub-line road Score is consumed, and is designated as the i-th power consumption score psi, psi=Pi*Ti*Wi。
10. a kind of controller, it is characterised in that the controller is suitable to be configured at the power system with photovoltaic generation function In, wherein, the power system includes the photovoltaic generating module for being used for that photovoltaic generation general power to be sent to the controller, and extremely A few sub- line module, the controller are connected with the photovoltaic generating module and the sub- line module respectively；
The controller module includes memory, at least one processor and executable code, and the executable code is stored in In the memory and it is configured to by least one computing device, to realize such as claim 7-9 any one institute The photovoltaic generation off-network control method based on power detection stated.
CN201710534648.0A 2017-07-03 2017-07-03 A kind of photovoltaic generation off-network control system and method based on power detection Pending CN107346897A (en)

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JP2007236023A (en) * 2006-02-27 2007-09-13 Toyota Motor Corp Building power supply system
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