CN103812126A - Charging system capable of responding to electricity demand in intelligentized mode and method thereof - Google Patents
Charging system capable of responding to electricity demand in intelligentized mode and method thereof Download PDFInfo
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- CN103812126A CN103812126A CN201210461238.5A CN201210461238A CN103812126A CN 103812126 A CN103812126 A CN 103812126A CN 201210461238 A CN201210461238 A CN 201210461238A CN 103812126 A CN103812126 A CN 103812126A
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- 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
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- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/14—Energy storage units
Abstract
The invention provides an intelligentized charging system with a responding function for electricity demand and a method thereof. The system comprises a control module, an attribute storing module, an information obtaining module, a strategy storing module, an on-line decision-making module, an off-line decision-making module and a power regulating module. The charging system has an intelligent control function for demand response, and automatic control for the demand response can be realized. Because the novel intelligentized charging system with the function of demand response can perform automatic charging regulation according to the peak valley conditions of current load of a power grid, electricity price adjustment conditions and other power grid state, the maximization of the utilization of electrical energy is realized, and the charging system has a promoting action for improving a charging mode and an electricity using mode no matter from a practical perspective or an environment protection perspective.
Description
Technical field
The present invention relates to charging system and the method for the intelligent response of a kind of energy need for electricity.Generally be applicable to the charging device of various charging devices (as mobile phone, notebook computer, panel computer, MP3, MP4 etc.).
Background technology
Along with the raising of expanding economy, people's living standard, need the electronic equipment of charging more and more, electricity needs also constantly increases.No matter be mobile phone, notebook computer, or the audio and video players such as panel computer or MP3, MP4, all in people's live and work, played the part of more and more important role, and the charging device of these facilities occupies especially increasing ratio in daily power consumption.Especially the electronic equipment such as panel computer, mobile phone, MP3, is charged to battery by charging system, then by battery to equipment power supply its main occupation mode especially.
On the other hand, the finiteness of electric power resource and the necessity of environmental protection are but to more effectively utilizing electric energy to have higher requirement.Also just because of this, the correlation technique of Internet of Things and intelligent grid just can develop so vigorously both at home and abroad.In order to comply with better electric energy development trend, improve efficiency, economize on resources, simultaneously protection of the environment, realize low-carbon economy, need more rationally, more efficient, more scientific land productivity electric energy.
For power plant, its generated output is to keep constant.But actual social power load but fluctuates.Therefore in order to meet need for electricity at load peak point, power plant need to be by the power generating of peak load, like this will not causing electricity consumption to waste in peaking.If so can make power load peak load become evenly as far as possible, just can make electric energy obtain utilizing more efficiently.
Also Just because of this, some World Developed Countries have come into effect the measure of pricing for segment, and peak electricity consumption and valley power consumption time are taked to different electricity prices, and wherein peak phase electricity price is higher, and ebb period electricity price is lower, the uniform distribution that guides electric energy to use.Although China does not also introduce segmentation electricity price at present, also may take this measure in future.If employing pricing for segment, if can help so user on average to arrange utilization of power, can be directly the Financial cost of their electrical energy saving; Even without taking pricing for segment, if can help user on average to arrange electricity consumption peak valley, be also conducive to effective utilization of electric energy.
In general, charging system is take charger as example, and the operation principle of this charger charging system is as accompanying drawing 1.As shown in Figure 1, charger one end link 220V alternating current, first becomes high voltage direct current by rectification circuit, then becomes hf and hv pulse through switching tube, is then converted to low pressure (such as 5V) pulse by transformer.The action of low-voltage pulse of 5V through a rectification, voltage stabilizing circuit, becomes 5V galvanic current again, is connected on the power consumption equipment such as mobile phone, flat board, just can complete charging.
Under foregoing background, if can common electronic equipment charger be improved, enable " intelligently " and adapt to novel need for electricity, suitably cost-saving, but do not affect electricity consumption, there is undoubtedly innovation and actual meaning.
If make charger can intelligently respond need for electricity, need to obtain electric network state and demand response event information by certain mode, comprise electric charge peak valley information, electricity price change information, promptly ration the power supply event or other emergency information etc.This category information can utilize the correlation technique analysis of electric load analysis to obtain, and as shown in Figure 2, the power load data of electrical network are collected by intelligent electric meter electric load demand response event analysis process.The Power system load data unification that ammeter collects is carried out store and management by database.Electric load analysis center can analyze the Power system load data collecting, thereby obtains demand response event information, such as being that electricity price how in peak of power consumption or low power consumption in current electrical network, whether has burst power condition etc.
Summary of the invention
The object of this invention is to provide a kind of intelligent control function with demand response, can realize the automatic control of demand response, thereby realize the maximized system and method for utilization of power.
For achieving the above object, the invention provides a kind of intelligent charging method with electricity needs response function, comprising:
Step 1, described intelligent charging system intelligent charging system connects after power supply, and controller judges whether it is online situation, if enter step 2, if off-line case enters step 5;
Step 2, communicator obtains local base attribute information, and deposits attributes store in;
Step 3, communicator and power load center communication also complete acquisition of information, obtain demand response event information, and deposit policy store in;
Step 4, power governor is now that peak of power consumption, high price maybe need the situation of rationing the power supply according to described demand response event information and the judgement of local base attribute information, or low power consumption, low price or the situation of electric power resource free time, enters step 6;
Step 5, the policy store information that power governor deposits according to online situation of last time or the judgement of attributes store information now maybe need the situation of rationing the power supply in peak of power consumption, high price, or low power consumption, low price or the situation of electric power resource free time, enter step 6;
Step 6, when be peak of power consumption, high price maybe need to ration the power supply situation time, turn down the duty ratio of input voltage, reduce charging current, thereby turn down charge power; In the time being low power consumption, low price or the situation of electric power resource free time, heighten the duty ratio of input voltage, increase charging current, improve charge power.
In described step 2: described local base attribute information is that described intelligent charging system obtains by communicator, or be solidificated in advance the intrasystem local attribute information of described intelligent charging.
Wherein in step 3, obtain that described demand response event information can also obtain by power carrier communication method.
Described communicator is mounted in charging equipment or described intelligent charging system.
Described power carrier communication method concrete steps are:
The present invention also provides a kind of intelligent charging system with electricity needs response function, it is characterized in that, comprising:
Control module, carries out online situation or off-line case for dispatching described intelligent charging system, if online situation is carried out property store module, if off-line case is carried out off-line decision-making module;
Property store module, for described intelligent charging system acquisition and deposit local base attribute information, and carries out acquisition of information module;
Acquisition of information module, for by communicator and the communication of electric load analysis center and complete acquisition of information, obtains demand response event information, and implementation strategy memory module;
Policy store module, for depositing described demand response event information, and carries out on-line decision module;
On-line decision module, for judging it is now that peak of power consumption, high price maybe need the situation of rationing the power supply according to described demand response event information and local base attribute information, or low power consumption, low price or the situation of electric power resource free time, and carry out power conditioning module;
Off-line decision-making module, the policy store information depositing according to online situation of last time or the judgement of attributes store information now maybe need the situation of rationing the power supply in peak of power consumption, high price, or low power consumption, low price or the situation of electric power resource free time, and carry out power conditioning module;
Power conditioning module, for when be peak of power consumption, high price maybe need to ration the power supply situation time, turn down the duty ratio of input voltage, reduce charging current, thereby turn down charge power; In the time being low power consumption, low price or the situation of electric power resource free time, heighten the duty ratio of input voltage, increase charging current, thereby improve charge power.
Further, in described property store module: described local base attribute information is that described intelligent charging system obtains by communicator, or be solidificated in advance the intrasystem local attribute information of described intelligent charging.
In described acquisition of information module: obtain described demand response event information and obtain by communicator and the communication of electric load analysis center, or obtain by power carrier communication module.
Described communicator is arranged in charging equipment or described intelligent charging system.
Described power carrier communication module comprises:
Demand response event signal acquisition module, power load center analysis obtains demand response event signal;
Modular converter, becomes power line signal by described demand response event signal by modulation;
Coupling module, coupler is coupled to described power line signal on power line;
Receiving processing module, described intelligent charging system will obtain demand response event information after the power line signal decoupling zero on described power line, filtering, demodulation as receiving terminal.
Beneficial effect of the present invention is:
Compare with traditional charging device, this novel intelligent demand response charging system and method thereof has many good qualities:
First, this charging system and method thereof have the intelligent control function of demand response, and traditional charging system and method thereof do not have electricity needs response function.Respond by electricity needs, this novel intelligent charging device can help user to reduce electric cost, can also effectively save and utilize electric energy, therefore the side of generating, supplier of electricity and environmental protection is all beneficial to.
In addition, this device can be realized the automatic control of demand response, and traditional charging system and method thereof are if realize demand response and can only realize by manual intervention, or manually pull out charging system plug and make it power-off, or manually pulling out electronic equipment to be charged stops charging circuit to form loop, which kind of artificial implementation is all cumbersome, and is subject to the restriction of human activity.If in needs, operator cannot be on the scene or be forgotten operation, all cannot change the demand response state of charging system.
Therefore, because this Novel intelligent demand response charging system can carry out automatic charging adjustment when preload peak valley situation, electricity price situation of change and other electric network states according to electrical network, thereby realize the maximization of utilization of power, no matter be from practical standpoint, or from environmental angle, it all has facilitation to the improvement of charging and power mode.Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Accompanying drawing 1 is the operation principle block diagram of charger charging system;
Accompanying drawing 2 is electric load demand response event analysis processes;
Accompanying drawing 3 is intelligent demand response charger operation principles;
Accompanying drawing 4 is to utilize the communication module of charging equipment to obtain electricity needs response events information;
Accompanying drawing 5 is logic control flow process figure of charger;
Accompanying drawing 6 is hardware configuration schematic diagrames of charger;
Accompanying drawing 7 is Intelligentized method flow charts of the present invention;
Accompanying drawing 8 is intellectualizing system schematic diagrames of the present invention.
Embodiment
Provide the specific embodiment of the present invention below, by reference to the accompanying drawings the present invention has been made to detailed description.
The present invention proposes a kind of intelligent charging method with electricity needs response function, accompanying drawing 7 is Intelligentized method flow charts of the present invention.As shown in Figure 7, the intelligent charging method with electricity needs response function of the present invention, comprising:
Step 1, intelligent charging system connects after power supply, and controller judges whether it is online situation, if enter step 2, if off-line case enters step 5;
Step 2, described intelligent charging system obtains local base attribute information, and deposits attributes store in;
Step 3, communicator is by communicator and power load center communication and complete acquisition of information, obtains demand response event information, and deposits policy store in;
Step 4, power governor is now that peak of power consumption, high price maybe need the situation of rationing the power supply according to described demand response event information and the judgement of local base attribute information, or low power consumption, low price or the situation of electric power resource free time, enters step 6;
Step 5, the policy store information that power governor deposits according to online situation of last time or the judgement of attributes store information now maybe need the situation of rationing the power supply in peak of power consumption, high price, or low power consumption, low price or the situation of electric power resource free time, enter step 6;
Step 6, when be peak of power consumption, high price maybe need to ration the power supply situation time, turn down the duty ratio of input voltage, reduce charging current, thereby turn down charge power; In the time being low power consumption, low price or the situation of electric power resource free time, heighten the duty ratio of input voltage, increase charging current, improve charge power.
In described step 2: described local base attribute information is that described intelligent charging system obtains by communicator, or be solidificated in advance the intrasystem local attribute information of described intelligent charging.
In step 3: obtaining described demand response event information can also obtain by power carrier communication method.
Communicator described in step 3 is mounted in charging equipment or described intelligent charging system.
Power carrier communication method concrete steps are:
The basic functional principle of this method, is elaborated as an example of the charging process that realizes the Intelligent charger with electricity needs response function example.
The basic functional principle of New charger as shown in Figure 3.The power load data of electrical network are collected by intelligent electric meter.The Power system load data unification that ammeter collects is carried out store and management by database.Electric load analysis center can analyze the Power system load data collecting, thereby obtains demand response event information, such as being that electricity price how in peak of power consumption or low power consumption in current electrical network, whether has burst power condition etc.
Then, intelligent demand response charger end can communicate with electric load analysis center, obtain demand response event information, comprise electric load peak valley information, electricity price change information, the urgent event etc. of rationing the power supply, and the power control module containing by self intelligently responds POWER SYSTEM STATE, when peak of power consumption section, electricity price higher (under the higher different prerequisites of electricity price that refer in the different periods of electricity price) or other need to reduce network load and automatically reduce charging current, carry out low-power charging; And automatically increase charging current in the time that low power consumption section, electricity price are lower or other power network resources free time in the situation that, carry out high power charging.As long as this novel charging device normally accesses power supply and load to be charged, these two processes can be switched by power control unit automatically according to the demand response event signal obtaining, until complete whole load charging process.
Specifically, the need for electricity response of this New charger can be taked off-line or online response mode, as described below respectively:
A. the electricity needs of off-line case response
The power control of so-called offline responses, when charging device does not possess communication capacity, or communication apparatus is normally when access network, and system is directly stored in charger end for demand response by the electricity price phase change information in typical this region electric load peak valley information, this region etc.Because most of user's consumption habit may be comparatively similar, after coming off duty evening, there will be peak of power consumption etc., this typical electricity consumption curve directly can be deposited in to Intelligent charger end, charger is directly according to the load peak valley feature response charging demand depositing in.Depositing the high crest segment of load curve in, power control module reduces electric current, reduces charge power; And depositing the low ebb section of load curve in, power control module increases charging current, improves charge power, accelerates charging rate.For the electricity price change information depositing in, also take similar response method, in the time that electricity price is higher, power control module reduces electric current and reduces charge power, accelerates charging rate otherwise improve charge power.
The power control module advantage of offline responses is simplicity of design, calculates simply, and cost is low; Its shortcoming is also comparatively obvious, and response efficiency is lower, and applicability is poor.
B. the electricity needs of online situation response
The power control module of online response is to adjust in real time charge power height according to the demand response event information of the electric load analysis end receiving in real time, and concrete method of adjustment and principle are still as previously mentioned.Difference is only that under this response modes, peak valley curve, electricity price information etc. not pre-deposits, but immediately obtains by communication module.
The power control module advantage of online response is that response efficiency is high, good energy-conserving effect, and applicability is also stronger, for some emergency situations also obtaining information, response immediately freely; Shortcoming be calculate slightly more complex.
In the time that line model can not normally move, the operating state of charging device automatically switches becomes off-line state in addition.Carry out control strategy and area information that last download online arrives.When being again connected into after network, automatically upgrade this information (effect of timer, only for postponing, is exactly to guarantee necessarily to realize circulation to carry out once this logic) as shown in Figure 5 by timer control.
The information acquisition mode of the online corresponding intelligent charger of electricity needs:
Thereby hold the demand response event information obtaining and carry out charge power adjustment in order to respond electric load analysis center, intelligentized demand response charger needs a module that energy completes to communicate by letter with electric load analysis center.This module can complete and the communicating by letter and acquisition of information of electric load analysis center in the following manner:
A. utilize the communication module of charging equipment to obtain demand response event information
In view of the intelligentized generality of power consumption equipment, a lot of charger loads are that equipment (for example mobile phone, laptop computer etc.) to be charged self all has communication module.Load can directly utilize the communication module itself containing to obtain power load demand response event information from electric load analysis center in wait completes the process of charging.At long-range server end, there is the electric load information of the location of this electrical appliance (mobile phone, laptop computer), electrical appliance signs in to remote server end by the Internet.Server passes through the basic status attribute of this electrical appliance, for example electrical appliance site, and the time at present, this user's current power service condition, the power consumption situation of these other equipment of region, this electrical appliance is returned in real-time propelling movement, and a set of relevant charging strategy is provided.This electrical appliance is controlled the work behavior of its charger by strategy, and utilizes the similar techniques such as OTG directly to charger issuing command (shown in Fig. 4).
B. obtain demand response event information by the independent communication module of charger end (charging equipment)
Except utilizing the pattern of load communication, charger itself also can carry communication module and communicate with electric load analysis center.Design an independently wired or wireless network communication module at charger end, such as wireless data sending, WIFI, Bluetooth etc., no matter whether load equipment to be charged has communicator, can communicate by letter with electric load analysis center and complete acquisition of information, obtain demand response event information.Concrete communication process is similar to above-mentioned utilization treats the communication flow of the communication module of fill device.Charger utilizing WIFI, the means internet login servers such as Bluetooth, obtain the charging strategy of this time of this region.
C. transmit demand response event information by power carrier
Power carrier communication refers to and utilizes existing power line, by carrier system, analog or digital signal carried out to the technology of high-speed transfer.This technology also can be used for obtaining demand response event information.Electric load analysis center can be analyzed to the demand response event signal obtaining and become power line signal by modulation, couple a signal on power line by coupler again, charger end by signal decoupling zero, filtering, demodulation on power line, just can obtain demand response event information as acceptance point.Concrete communication process is similar to above-mentioned utilization treats the communication flow of the communication module of fill device.Charger utilizing power carrier means internet login server, obtains the charging strategy of this time of this region.
The hardware composition of the corresponding charger of intelligent demand:
Whole equipment (Fig. 6) is by controller, transformer, and power control module, policy store, attributes store, communication module, treats several parts compositions such as fill device interface.Controller is used for dispatching whole logic flow, the normal work of control appliance.Policy store is used for depositing the policy information of current this charger obtaining by communication, and controller is controlled the charge power of last output by utilizing this strategy to carry out power ratio control adjustment module.Attributes store is used for depositing the base attribute of this charger, is similar to an authentication, comprises some essential informations, place to use, time, electrical appliance type, numbering etc.Communication module can be according to the difference of application scenarios and difference can be WIFI, or the wireless realization of Bluetooth, also can treat that fill device carries out communication with USB and its, or utilize electrical carrier signal communication.
The power control of intelligent demand response charger:
After getting demand response event information, in order to realize demand response, need to carry out dynamic regulation to charge power.In electricity usage peak period, reduce charge power and realize energy-saving charging; In the electricity usage low ebb phase, increase charge power to realize charging cheaply.This part function is completed by the power control of charger.
Power control can adopt the modes such as pulse width modulation (PWM), realizes the change of switching power supply output transistor or transistor turns time by modulation crystal tube grid at a high speed or the biasing of base stage.Like this, be equivalent to change the duty cycle square wave of the input voltage of charger, in the time that input voltage duty ratio is larger, the average current of charging is larger, and charge efficiency is higher; Relative, when input voltage duty ratio more hour, mean charging current is just less, charge efficiency is also lower.Particularly, in intelligent demand response charger design as herein described, when the situation that runs into peak of power consumption, electricity consumption high price or need to ration the power supply, the duty ratio of just turning down input voltage, reduces charging current, for example, can consider power to adjust to and just maintain power consumption equipment and normally move, electric weight can not reduce also and can not increase, can realize like this energy-saving charging, can directly not disconnect again the charging process of power consumption equipment simultaneously, can not affect the normal use of equipment.And when running into low power consumption, electricity consumption at a low price or the situation of other electric power resource free time, just can heighten duty ratio, and increase charging current, improve charge power, make a concentrated effort to finish charging process.
The invention allows for a kind of kind intelligent charging system with electricity needs response function, accompanying drawing 6 is intellectualizing system schematic diagrames of the present invention.As shown in Figure 8, the kind intelligent charging system with electricity needs response function of the present invention comprises:
Obtaining information module 300, for by communicator and the communication of electric load analysis center and complete acquisition of information, obtains demand response event information, and implementation strategy memory module;
On-line decision module 500, for judging it is now that peak of power consumption, high price maybe need the situation of rationing the power supply according to described demand response event information and local base attribute information, or low power consumption, low price or the situation of electric power resource free time, and carry out power conditioning module 700;
Off-line decision-making module 600, the policy store information depositing according to online situation of last time or the judgement of attributes store information now maybe need the situation of rationing the power supply in peak of power consumption, high price, or low power consumption, low price or the situation of electric power resource free time, and carry out power conditioning module 700;
In described property store module 200: described local base attribute information is that described intelligent charging system obtains by communicator, or be solidificated in advance the intrasystem local attribute information of described intelligent charging.
In described obtaining information module 300: obtain that described demand response event information can also obtain by power carrier communication module.
Described communicator is arranged in charging equipment or described intelligent charging system.
Power carrier communication module comprises:
Demand response event signal acquisition module, power load center analysis obtains demand response event signal;
Modular converter, becomes power line signal by described demand response event signal by modulation;
Coupling module, coupler is coupled to described power line signal on power line;
Receiving processing module, described intelligent charging system will obtain demand response event information after the power line signal decoupling zero on described power line, filtering, demodulation as receiving terminal.
This charging system can, from dynamic response electric load demand, can charge, and when peak appears in electricity consumption, slow down charging when low ebb appears in electricity consumption; Also can when electricity price is lower, add charging quickly, and when electricity price is higher, slow down charging; Or occurring slowing down charging while promptly rationing the power supply event, save electric power resource.Mode by response electricity needs improves power consumption efficiency, reduces electric cost.Its design original intention is: under the prerequisite that as far as possible meets charging system ease for use and user friendly, realize demand response, improve efficiency.
This novel intelligent charging system can communicate and obtain analysis center with the electric load analysis center described in background and pass the demand response event signal of coming, according to the residing electric power peak valley of current power system, electricity price, electric power state-event in electric load peak valley signal, by the power control module of self, can automatically adjust the charge power of its load end charging device.When electric load system is in peak of power consumption, or electricity price is higher and occur that while promptly rationing the power supply situation, power control module reduces charge power, and electricity consumption equipment charge speed is slowed down; And when electric load system is in the relative low ebb of electricity consumption, or electricity price is lower, and when power network resources is comparatively idle, power control module improves charge power, and electricity consumption equipment charge speed is accelerated.
This invention can realize the power control to charging system operating state, as long as solved, traditional charging device switches on power and load just enters operating state and cannot make the problem of corresponding control.，
The present invention is directed to conditional electronic product charging system to the limited problem of the utilance of electric energy, proposed a kind of New-type charge system of response circuit workload demand automatically.This charging system is accepted demand response event information by communication module, then by power control module according to power adjustment that the judgement of current power system loading situation is charged, thereby automatically control the charging rate of charging device.
As shown in Figure 3, charging system is take charger as example for the basic functional principle of this New-type charge system, but is not limited to this.
As described in background, current power demand response event information hands over power load center analysis to obtain after can gathering electric network data by ammeter.
Then, intelligent demand response charger end can communicate with electric load analysis center, obtain demand response event information, comprise electric load peak valley information, electricity price change information, the urgent event etc. of rationing the power supply, and the power control module containing by self intelligently responds POWER SYSTEM STATE, in the time that peak of power consumption section, electricity price are higher or the in the situation that other need to reduce network load, automatically reduce charging current, carry out low-power charging; And automatically increase charging current in the time that low power consumption section, electricity price are lower or other power network resources free time in the situation that, carry out high power charging.As long as this novel charging device normally accesses power supply and load to be charged, these two processes can be switched by power control unit automatically according to the demand response event signal obtaining, until complete whole load charging process.
Specifically, the need for electricity response of this New charger can be taked off-line or online response mode, as described below respectively:
C. the electricity needs of off-line decision-making module response
The power control of so-called offline responses, when charging device does not possess communication capacity, or communication apparatus is normally when access network, and system is directly stored in charger end for demand response by the electricity price phase change information in typical this region electric load peak valley information, this region etc.Because most of user's consumption habit may be comparatively similar, after coming off duty evening, there will be peak of power consumption etc., this typical electricity consumption curve directly can be deposited in to Intelligent charger end, charger is directly according to the load peak valley feature response charging demand depositing in.Depositing the high crest segment of load curve in, power control module reduces electric current, reduces charge power; And depositing the low ebb section of load curve in, power control module increases charging current, improves charge power, accelerates charging rate.For the electricity price change information depositing in, also take similar response method, in the time that electricity price is higher, power control module reduces electric current and reduces charge power, accelerates charging rate otherwise improve charge power.
The power control module advantage of offline responses is simplicity of design, calculates simply, and cost is low; Its shortcoming is also comparatively obvious, and response efficiency is lower, and applicability is poor.
D. the electricity needs of on-line decision module response
The power control module of online response is to adjust in real time charge power height according to the demand response event information of the electric load analysis end receiving in real time, and concrete method of adjustment and principle are still as previously mentioned.Difference is only that under this response modes, peak valley curve, electricity price information etc. not pre-deposits, but immediately obtains by communication module.
The power control module advantage of online response is that response efficiency is high, good energy-conserving effect, and applicability is also stronger, for some emergency situations also obtaining information, response immediately freely; Shortcoming be calculate slightly more complex.
In the time that line model can not normally move, the operating state of charging device automatically switches becomes off-line state in addition.Carry out control strategy and area information that last download online arrives.When being again connected into after network, automatically upgrade this information (shown in Fig. 5).
The information acquisition mode of the online corresponding intelligent charger of electricity needs:
Thereby hold the demand response event information obtaining and carry out charge power adjustment in order to respond electric load analysis center, intelligentized demand response charger needs a module that energy completes to communicate by letter with electric load analysis center.This module can complete and the communicating by letter and acquisition of information of electric load analysis center in the following manner:
D. utilize the communication module of charging equipment to obtain demand response event information
In view of the intelligentized generality of power consumption equipment, a lot of charger loads are that equipment (for example mobile phone, laptop computer etc.) to be charged self all has communication module.Load can directly utilize the communication module itself containing to obtain electric load demand response event information from electric load analysis center in wait completes the process of charging.At long-range server end, there is the electric load information of the location of this electrical appliance (mobile phone, laptop computer), electrical appliance signs in to remote server end by the Internet.Server passes through the basic status attribute of this electrical appliance, for example electrical appliance site, and the time at present, this user's current power service condition, the power consumption situation of these other equipment of region, this electrical appliance is returned in real-time propelling movement, and a set of relevant charging strategy is provided.This electrical appliance is controlled the work behavior of its charger by strategy, and utilizes the similar techniques such as OTG directly to charger issuing command (shown in Fig. 4).
E. obtain demand response event information by the independent communication module of charger end
Except utilizing the pattern of load communication, charger itself also can carry communication module and communicate with electric load analysis center.Can design an independently wired or wireless network communication module for charger end, such as wireless data sending, WIFI, Bluetooth etc., no matter whether load equipment to be charged has communicator, can communicate by letter with electric load analysis center and complete acquisition of information, obtain demand response event information.Concrete communication process is similar to above-mentioned utilization treats the communication flow of the communication module of fill device.Charger utilizing WIFI, the means internet login servers such as Bluetooth, obtain the charging strategy of this time of this region.
F. transmit demand response event information by power carrier
Power carrier communication refers to and utilizes existing power line, by carrier system, analog or digital signal carried out to the technology of high-speed transfer.This technology also can be used for obtaining demand response event information.Electric load analysis center can be analyzed to the demand response event signal obtaining and become power line signal by modulation, couple a signal on power line by coupler again, charger end by signal decoupling zero, filtering, demodulation on power line, just can obtain demand response event information as acceptance point.Concrete communication process is similar to above-mentioned utilization treats the communication flow of the communication module of fill device.Charger utilizing power carrier means internet login server, obtains the charging strategy of this time of this region.
The hardware composition of the corresponding charger of intelligent demand:
Whole equipment (Fig. 6) is by controller, transformer, and power control module, policy store, attributes store, communication module, treats several parts compositions such as fill device interface.Controller is used for dispatching whole logic flow, the normal work of control appliance.Policy store is used for depositing the policy information of current this charger obtaining by communication, and controller is controlled the charge power of last output by utilizing this strategy to carry out power ratio control adjustment module.Attributes store is used for depositing the base attribute of this charger, is similar to an authentication, comprises some essential informations, place to use, time, electrical appliance type, numbering etc.Communication module can be according to the difference of application scenarios and difference can be WIFI, or the wireless realization of Bluetooth, also can treat that fill device carries out communication with USB and its, or utilize electrical carrier signal communication.
The power control module of intelligent demand response charger:
After getting demand response event information, in order to realize demand response, need to carry out dynamic regulation to charge power.In electricity usage peak period, reduce charge power and realize energy-saving charging; In the electricity usage low ebb phase, increase charge power to realize charging cheaply.This part function is completed by the power control module of charger.
Power control module can adopt the modes such as pulse width modulation (PWM), realizes the change of switching power supply output transistor or transistor turns time by the biasing of modulation crystal tube grid or base stage.Like this, be equivalent to change the duty cycle square wave of the input voltage of charger, in the time that input voltage duty ratio is larger, charging current is larger, and charge efficiency is higher; Relative, when input voltage duty ratio more hour, charging current is just less, charge efficiency is also lower.Particularly, in intelligent demand response charger design as herein described, when the situation that runs into peak of power consumption, electricity consumption high price or need to ration the power supply, the duty ratio of just turning down input voltage, reduces charging current, for example, can consider power to adjust to and just maintain power consumption equipment and normally move, electric weight can not reduce also and can not increase, can realize like this energy-saving charging, can directly not disconnect again the charging process of power consumption equipment simultaneously, can not affect the normal use of equipment.And when running into low power consumption, electricity consumption at a low price or the situation of other electric power resource free time, just can heighten duty ratio, and increase charging current, improve charge power, make a concentrated effort to finish charging process.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the claims in the present invention.
Claims (10)
1. an intelligent charging method with electricity needs response function, is characterized in that, comprising:
Step 1, intelligent charging system connects after power supply, and controller judges whether it is online situation, if online situation, execution step 2, if off-line case performs step 5;
Step 2, described intelligent charging system obtains local base attribute information, and deposits attributes store in;
Step 3, communicator and power load center communication also complete acquisition of information, obtain demand response event information, and deposit policy store in;
Step 4, power governor is now that peak of power consumption, high price maybe need the situation of rationing the power supply according to described demand response event information and the judgement of local base attribute information, or low power consumption, low price or the situation of electric power resource free time, execution step 6;
Step 5, the policy store information that power governor deposits according to online situation of last time or the judgement of attributes store information now maybe need the situation of rationing the power supply in peak of power consumption, high price, or low power consumption, low price or the situation of electric power resource free time, execution step 6;
Step 6, when be peak of power consumption, high price maybe need to ration the power supply situation time, turn down the duty ratio of input voltage, reduce mean charging current, thereby turn down charge power; In the time being low power consumption, low price or the situation of electric power resource free time, heighten the duty ratio of input voltage, increase charging current, improve charge power.
2. the intelligent charging method of intelligent charging system as claimed in claim 1, it is characterized in that, in described step 2: described local base attribute information is that described intelligent charging system obtains by communicator, or be solidificated in advance the intrasystem local attribute information of described intelligent charging.
3. the intelligent charging method of intelligent charging system as claimed in claim 1, is characterized in that, in described step 3: obtaining described demand response event information can also obtain by power carrier communication method.
4. the intelligent charging method of intelligent charging system as claimed in claim 1, is characterized in that, communicator described in described step 3 is mounted in charging equipment or described intelligent charging system.
5. the intelligent charging method of intelligent charging system as claimed in claim 3, is characterized in that, described power carrier communication method concrete steps are:
Step 100, power load center analysis obtains demand response event signal;
Step 200, becomes power line signal by described demand response event signal by modulation;
Step 300, coupler is coupled to described power line signal on power line;
Step 400, described intelligent charging system will obtain demand response event information after the power line signal decoupling zero on described power line, filtering, demodulation as receiving terminal.
6. an intelligent charging system with electricity needs response function, is characterized in that, comprising:
Control module, carries out online situation or off-line case for dispatching described intelligent charging system, if online situation is carried out property store module, if off-line case is carried out off-line decision-making module;
Property store module, for described intelligent charging system acquisition and deposit local base attribute information, and carries out communication module;
Obtaining information module, for by communicator and the communication of electric load analysis center and complete acquisition of information, obtains demand response event information, and implementation strategy memory module;
Policy store module, for depositing described demand response event information, and carries out on-line decision module;
On-line decision module, for judging it is now that peak of power consumption, high price maybe need the situation of rationing the power supply according to described demand response event information and local base attribute information, or low power consumption, low price or the situation of electric power resource free time, and carry out power conditioning module;
Off-line decision-making module, the policy store information depositing according to online situation of last time or the judgement of attributes store information now maybe need the situation of rationing the power supply in peak of power consumption, high price, or low power consumption, low price or the situation of electric power resource free time, and carry out power conditioning module;
Power conditioning module, for when be peak of power consumption, high price maybe need to ration the power supply situation time, turn down the duty ratio of input voltage, reduce charging current, thereby turn down charge power; In the time being low power consumption, low price or the situation of electric power resource free time, heighten the duty ratio of input voltage, increase charging current, thereby improve charge power.
7. the Intelligent charging system of intelligent charging system as claimed in claim 6, it is characterized in that, in described property store module: described local base attribute information is that described intelligent charging system obtains by communicator, or be solidificated in advance the intrasystem local attribute information of described intelligent charging.
8. intelligent charging system as claimed in claim 6, is characterized in that, in described obtaining information module: obtain that described demand response event information can also obtain by power carrier communication module.
9. intelligent charging system as claimed in claim 6, is characterized in that, described communicator is arranged in charging equipment or described intelligent charging system.
10. the intelligent charging method of intelligent charging system as claimed in claim 8, is characterized in that, described power carrier communication module comprises:
Demand response event signal acquisition module, power load center analysis obtains demand response event signal;
Modular converter, becomes power line signal by described demand response event signal by modulation;
Coupling module, coupler is coupled to described power line signal on power line;
Receiving processing module, described intelligent charging system will obtain demand response event information after the power line signal decoupling zero on described power line, filtering, demodulation as receiving terminal.
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| CN107264320A (en) * | 2017-06-28 | 2017-10-20 | 北京新能源汽车股份有限公司 | Adaptive charging method and device |
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