CN106385057A - Control device, control method, and electric appliance system - Google Patents
Control device, control method, and electric appliance system Download PDFInfo
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- CN106385057A CN106385057A CN201610831475.4A CN201610831475A CN106385057A CN 106385057 A CN106385057 A CN 106385057A CN 201610831475 A CN201610831475 A CN 201610831475A CN 106385057 A CN106385057 A CN 106385057A
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- electrical network
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- voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Air Conditioning Control Device (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention provides a control device, a control method, and an electric appliance system. The electric appliance system connected with a power grid is enabled to adapt to all power grid systems, thereby avoiding the repeated operation, and saving the resources. The control device is used for controlling the electric appliance system connected with the power grid, and comprises an obtaining unit, a matching unit, and an adjusting unit. The obtaining unit is used for obtaining the parameter of the power grid. The matching unit is used for judging whether the electric appliance system is matched with the parameter of the power grid or not. The adjusting unit is used for adjusting the parameter of the power grid when the electric appliance system is not matched with the parameter of the power grid.
Description
Technical field
The present invention relates to technical field of electric appliances, more particularly, to a kind of control device, control method and electric system.
Background technology
With the enhancing of mankind's environmental consciousness, for saving traditional energy, new forms of energy receive the great attention of national governments.
It is characterized in that, photovoltaic as the new energy technology of relative maturity, with increasingly extensive., because it belongs to high taking air-conditioning as a example
The indispensable household appliances of power consumption, therefore, the PV air-conditioner being combined with photovoltaic just obtains extensive concern in world wide once release.
However, the electrical network standard of various countries is different, voltage has 450V, 410V, 380V, 220V and 110V etc. various etc.
Level, frequency has the standards such as 50Hz and 60Hz.When described PV air-conditioner is in the face of unmatched electrical network standard, if frequency does not meet,
Then it is easily caused operation unstable；If voltage mismatches, when busbar voltage is too low, harmonic wave is big, fluctuation of service, and busbar voltage is too
Gao Shi, components and parts cannot bear and be lost big.Therefore in overseas described in marketing during PV air-conditioner, need for other countries
Certain electrical network standard develops particular series.
Specifically, the flow chart that Fig. 1 shows traditional control method for specific electrical network standard, as shown in figure 1, should
Method can only be directed to the specific electrical network standard of export market, such as 380V/50Hz.Determine corresponding busbar voltage 650V and correspondence
Parameter a*50 (a is corresponding coefficient) of frequency 50Hz, then run respond well in 380V/50Hz electrical network.But, if this kind
Control method is applied to the area that electrical network standard is 220V/60Hz, such as North America, then 650V busbar voltage is relative to 220V alternating current
Pressure is too high, and loss greatly increases, and 50Hz and 60Hz frequency mismatches, and system control easily dissipates, under grid-connected performance is serious
Fall, then need for such area again development.Which results in development task heavy, and there is overlapping development, money
The drawbacks of source wastes.
Content of the invention
In view of this, the present invention provides a kind of control device, control method and electric system so that the electricity grid-connected with electrical network
Device system can adapt to whole electrical network standards, thus avoiding repeated work, economizes on resources.
According to a first aspect of the present invention, a kind of control device is provided, for controlling the electric system grid-connected with electrical network, described
Control device includes：Acquiring unit, matching unit and adjustment unit；
Described acquiring unit is used for obtaining the parameter of described electrical network；Described matching unit be used for judging described electric system with
Whether the parameter of described electrical network mates；And adjustment unit is used for mismatching when the parameter of described electric system and described electrical network
When, the parameter of described electrical network is adjusted.
Further, the parameter of described electrical network is voltage and/or the frequency of electrical network.
Further, if parameter coupling, maintain the described parameter of described electrical network so that described electric system is normally transported
OK.
Further, described acquiring unit includes voltage and/or frequency detection module, for obtain described voltage and/or
Described frequency.
Further, this matching unit receive acquiring unit obtain electrical network described parameter, and with described electric system
Parameter be compared, and output matching or unmatched comparative result.
Further, described matching unit prestores or obtains the described electric system grid-connected with described electrical network in real time
Parameter, for described comparison.
Further, described adjustment unit includes voltage regulator module and/or frequency regulation block；
Described voltage regulator module is used for adjusting described voltage；And described frequency regulation block is used for adjusting described frequency
Rate.
Further, if voltage mismatches, described voltage regulator module determines the tune of current transformer in described electric system
System ratio, obtains busbar voltage command value further according to the voltage of described electrical network and the ratio of described modulation ratio obtaining；And/or
If frequency mismatches, this frequency obtaining is multiplied by a coefficient and obtains the frequency after adjustment by described frequency regulation block
Rate.
According to the second aspect of the invention, provide a kind of control method, for controlling the electric system grid-connected with electrical network, institute
State control method to include：Obtaining step, obtains the parameter of described electrical network；Matching step, judges described electric system and described electricity
Whether the parameter of net mates；And set-up procedure, when the parameter of described electric system and described electrical network mismatches, to described electricity
The parameter of net is adjusted.
Further, the parameter of described electrical network is voltage and/or the frequency of electrical network.
Further, if parameter coupling, maintain the parameter of described electrical network so that described electric system normally runs.
Further, described obtaining step includes voltage and/or frequency detecting step, obtains described voltage and/or described
Frequency.
Further, this matching step, the described parameter of the electrical network that described obtaining step is obtained and described electric system
Parameter be compared, and output matching or unmatched comparative result.
Further, prestore or obtain in real time the parameter of the described electric system grid-connected with described electrical network, for
Described comparison.
Further, described set-up procedure includes voltage regulator module and/or frequency set-up procedure；
Described voltage regulation step, adjusts described voltage；And
Described frequency set-up procedure, adjusts described frequency.
Further, if voltage mismatches, described voltage regulation step, determine the tune of current transformer in described electric system
System ratio, obtains busbar voltage command value further according to the voltage of described electrical network and the ratio of described modulation ratio obtaining；If and/or frequency
Rate mismatches, described frequency set-up procedure, this frequency obtaining is multiplied by a coefficient and obtains the frequency after adjustment.
According to the third aspect of the invention we, provide electric system, be provided with the control device in the application.
Further, described electric system is PV air-conditioner.
According to the such scheme of the present invention, by obtaining the parameters such as voltage and/or the frequency of described electrical network, and in described electricity
When the parameter of device system and described electrical network mismatches, adjust described parameter so that described electric system can stable operation,
And it is lost little.So, when described electric system when in the face of different electrical network standards it is not necessary to for all electrical network standards independent
Exploitation, it is to avoid the development repeating, has saved and has exploited natural resources.
Below in conjunction with the drawings and the specific embodiments, technical scheme is done with further detailed description, the present invention
Beneficial effect will be further appreciated.
Brief description
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, is used for
Explain the present invention, do not constitute inappropriate limitation of the present invention.
Fig. 1 shows traditional control flow chart for specific electrical network standard.
Fig. 2 shows the structured flowchart of control device according to one preferred embodiment of the present invention.
The flow chart that Fig. 3 shows control method according to one preferred embodiment of the present invention.
Fig. 4 shows the specific embodiment according to control method of the present invention.
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Corresponding accompanying drawing is clearly and completely described to technical solution of the present invention.Obviously, described embodiment is only the present invention one
Section Example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
The every other embodiment being obtained under the premise of going out creative work, broadly falls into the scope of protection of the invention.
Combine Fig. 2 description control device according to one preferred embodiment of the present invention first, grid-connected with electrical network for controlling
Electric system, such as PV air-conditioner, described control device includes acquiring unit 1, matching unit 2 and adjustment unit 3.Described obtain
Take unit 1 for obtaining the parameter of described electrical network, described matching unit 2 is used for judging the ginseng of described electric system and described electrical network
Whether number mates；And adjustment unit 3 is used for when the parameter of described electric system and described electrical network mismatches, to described electrical network
Described parameter be adjusted.Wherein, the parameter of described electrical network is voltage and/or the frequency of electrical network.Further, if parameter
Coupling, then maintain the described parameter of described electrical network so that described electric system normally runs.
So, the present invention is by determining the parameters such as voltage and/or the frequency of described electrical network, and described electric system with
When the parameter of described electrical network mismatches, adjust described parameter so that described electric system can stable operation, and be lost
Little.So, when described electric system when in the face of different electrical network standards it is not necessary to individually develop for all electrical network standards,
Avoid the development of repetition, saved and exploited natural resources.
Described acquiring unit 1 is used for obtaining the parameter of described electrical network.As described above, the parameter of described electrical network is the electricity of electrical network
Pressure and/or frequency, described acquiring unit 1 includes voltage and/or frequency detection module, for obtaining described voltage and/or described
Frequency.Voltage detecting is realized using such as AD sample circuit, and frequency detecting also can be realized by conventional frequency testing circuit.
Described matching unit 2 is used for judging whether described electric system is mated with the parameter of described electrical network.Specifically, this
Join the described parameter that unit 2 receives the electrical network that acquiring unit 1 obtains, and be compared with the parameter of described electric system, and defeated
Go out coupling or unmatched comparative result.Specifically, if both parameters of being compared are identical, think coupling, difference then thinks not
Coupling.Preferably, described matching unit 2 prestores or obtains the electricity consumption of the described electric system grid-connected with described electrical network in real time
Parameter, for comparing.The parameter of described electrical network is voltage and/or the frequency of electrical network.
Adjustment unit 3 receives described comparative result, when comparative result is to mismatch, i.e. described electric system and described electrical network
Parameter mismatch when, the described parameter of described electrical network is adjusted.Further, if comparative result is coupling, i.e. institute
When stating electric system and mating with the parameter of described electrical network, then maintain the described parameter of described electrical network so that described electric system just
Often run.
In a preferred embodiment, described adjustment unit 3 includes voltage regulator module and/or frequency regulation block.Institute
State voltage regulator module and be used for adjusting described voltage, described frequency regulation block is used for adjusting described frequency.Specifically, if voltage
Mismatch, then described voltage regulator module determines the modulation ratio of current transformer in described electric system, further according to the described electricity obtaining
The voltage of net obtains busbar voltage command value with the ratio of described modulation ratio.Wherein it is determined that the modulation ratio of described current transformer need to be comprehensive
Close and consider harmonic wave, stability and loss value of electric system etc..Further, if frequency mismatches, described frequency regulation block
This frequency obtaining is multiplied by a coefficient and obtains the frequency after adjustment.Described coefficient is preferably 1-1.5.Thus, then achieve right
Voltage and the isoparametric adjustment of described frequency, the parameter after above-mentioned adjustment are substituted into transmission function and can achieve to described Electrical System
The control of system.
Below in conjunction with Fig. 3,4 descriptions according to the control method of the present invention.Fig. 3 shows according to one preferred embodiment of the present invention
Control method flow chart.The flow chart that Fig. 4 shows a specific embodiment of control method according to the present invention.
Described control method is used for controlling the electric system grid-connected with electrical network, such as PV air-conditioner etc., as shown in figure 3, institute
State control method and include obtaining step S1, matching step S2 and set-up procedure S3.Described obtaining step S1, obtains described electrical network
Parameter；Described matching step S2, judges whether described electric system is mated with the parameter of described electrical network；And set-up procedure
S3, when the parameter of described electric system and described electrical network mismatches, is adjusted to the described parameter of described electrical network.Wherein,
The parameter of described electrical network is voltage and/or the frequency of electrical network.Further, if parameter coupling, maintain the institute of described electrical network
State parameter so that described electric system normally runs.
So, the present invention is by determining the parameters such as voltage and/or the frequency of described electrical network, and described electric system with
When the parameter of described electrical network mismatches, adjust described parameter so that described electric system can stable operation, and be lost
Little.So, when described electric system when in the face of different electrical network standards it is not necessary to individually develop for all electrical network standards,
Avoid the development of repetition, saved and exploited natural resources.
The parameter of described electrical network is obtained in described obtaining step S1.As described above, the parameter of described electrical network is the electricity of electrical network
Pressure and/or frequency, described obtaining step S1 further includes voltage and/or frequency detecting step, for obtain described voltage and/
Or described frequency.Voltage detecting is realized using such as AD sample circuit, and frequency detecting also can detect electricity by conventional frequency
Road is realized.
Described matching step S2, judges whether described electric system is mated with the parameter of described electrical network.Specifically, will obtain
The described parameter of the electrical network obtaining in step S1, and is compared with the parameter of described electric system, and output matching or not
The comparative result joined.Specifically, if both parameters of being compared are identical, think coupling, difference then thinks mismatch.Preferably,
Can prestore or obtain in real time the power consumption parameter of the described electric system grid-connected with described electrical network, for described comparison.Institute
The parameter stating electrical network is voltage and/or the frequency of electrical network.
Set-up procedure S3, receives described comparative result, when comparative result is to mismatch, i.e. described electric system and described electricity
When the parameter of net mismatches, the described parameter of described electrical network is adjusted.Further, if comparative result is coupling, that is,
When described electric system is mated with the parameter of described electrical network, then maintain the described parameter of described electrical network so that described electric system
Normal operation.
In a preferred embodiment, described set-up procedure S3 includes voltage regulation step and/or frequency set-up procedure.Institute
State voltage regulation step, adjust described voltage, described frequency set-up procedure, adjust described frequency.Specifically, if voltage not
Join, then, in described voltage regulation step, determine the modulation ratio of current transformer in described electric system, further according to the described electrical network obtaining
The ratio of voltage and described modulation ratio obtain busbar voltage command value.Wherein it is determined that the modulation ratio of described current transformer needs synthesis
Consider harmonic wave, stability and loss value of electric system etc..For example in a preferred embodiment, compressor DC operation electricity
Pressure scope is 580V-780V, and matching unit passes through voltage and the frequency values of real-time sampling electrical network, judges the electricity of this set grid-connection
Net standard (e.g. 380V/50Hz), after judging electrical network standard, control system adjusts control parameter accordingly, so that unit is existed
Under frequency 50Hz/60Hz can stable operation, and different line voltages (as 220V, 380V etc.) is boosted to load energy
Enough DC voltage range accepting.Further, if frequency mismatch, in described frequency set-up procedure, will obtain this frequency
It is multiplied by the frequency after a coefficient obtains adjustment.Thus, then achieve to voltage and the isoparametric adjustment of described frequency, by above-mentioned tune
Parameter after whole substitutes into transmission function and can achieve the control to described electric system.
One specific embodiment of control method according to the present invention is described below in conjunction with Fig. 4.As shown in figure 4, in real time
Judge the standard of described electric system place electrical network, when electrical network standard is mated with the existing parameter of described electric system, maintain
Electrical network parameter is constant, and system is normally run.When mismatch when, if voltage mismatch, need to consider system harmonicses, stability and
Loss value, determines modulation ratio m of current transformer, obtains busbar voltage command value Udc further according to u/m, and u is ac voltage, m is institute
State modulation ratio.For example in America market, line voltage peak value is usually 311V, if modulation ratio is 0.3, busbar voltage is boosted
To 311/0.3=1036V, this voltage is too high, and load maximum bears voltage for 780V although harmonic performance is good, but loss
Greatly, control shakiness, therefore can select modulation ratio according to this electrical network standard is 0.5, then be 622V after bus voltage value adjustment；If frequency
Rate f mismatches, and according to a*f, a is adjusted to described frequency for corresponding coefficient.The span of coefficient a is preferably 1-1.5.By
This obtains the parameter after adjustment.
The present invention also provides a kind of electric system, especially a kind of PV air-conditioner system, is provided with the control in the application
Device, can adapt to different electrical network standards.
Above the control device of the present invention, control method and electric system are described.According to the solution of the present invention,
By obtaining the parameters such as voltage and/or the frequency of described electrical network, and the parameter in described electric system and described electrical network mismatches
When, adjust described parameter so that described electric system can stable operation, and be lost little.So, when described electric system
When in the face of different electrical network standards it is not necessary to individually develop for all electrical network standards, it is to avoid the development repeating, section
About exploit natural resources.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art
For, the present invention can have various change and change.All any modifications made within spirit and principles of the present invention, equivalent
Replace, improve etc., should be included within the scope of the present invention.
Claims (18)
1. a kind of control device, for controlling the electric system grid-connected with electrical network, described control device includes：
Acquiring unit, matching unit and adjustment unit；
Described acquiring unit is used for obtaining the parameter of described electrical network；
Described matching unit is used for judging whether described electric system is mated with the parameter of described electrical network；And
Adjustment unit is used for, when the parameter of described electric system and described electrical network mismatches, the parameter of described electrical network being adjusted
Whole.
2. control device as claimed in claim 1 it is characterised in that
The parameter of described electrical network is voltage and/or the frequency of electrical network.
3. control device as claimed in claim 1 or 2, also includes,
If parameter is mated, maintain the parameter of described electrical network so that described electric system normally runs.
4. control device as claimed in claim 2 it is characterised in that
Described acquiring unit includes voltage and/or frequency detection module, for obtaining described voltage and/or described frequency.
5. the control device as described in any one of claim 1-4 it is characterised in that
This matching unit receives the described parameter of the electrical network that acquiring unit obtains, and is compared with the parameter of described electric system
Relatively, and output matching or unmatched comparative result.
6. control device as claimed in claim 5 it is characterised in that
Described matching unit prestores or obtains the parameter of the described electric system grid-connected with described electrical network in real time, for institute
State and compare.
7. the control device as described in any one of claim 1-6 it is characterised in that
Described adjustment unit includes voltage regulator module and/or frequency regulation block；
Described voltage regulator module is used for adjusting described voltage；And described frequency regulation block is used for adjusting described frequency.
8. control device as claimed in claim 7 it is characterised in that
If voltage mismatches, described voltage regulator module determines the modulation ratio of current transformer in described electric system, according to acquisition
The ratio of the voltage of described electrical network and described modulation ratio obtain busbar voltage command value；And/or
If frequency mismatches, this frequency obtaining is multiplied by a coefficient and obtains the frequency after adjustment by described frequency regulation block.
9. a kind of control method, for controlling the electric system grid-connected with electrical network, described control method includes：
Obtaining step, obtains the parameter of described electrical network；
Matching step, judges whether described electric system is mated with the parameter of described electrical network；And
Set-up procedure, when the parameter of described electric system and described electrical network mismatches, is adjusted to the parameter of described electrical network.
10. control method as claimed in claim 9 it is characterised in that
The parameter of described electrical network is voltage and/or the frequency of electrical network.
11. control methods as described in claim 9 or 10, also include,
If parameter is mated, maintain the parameter of described electrical network so that described electric system normally runs.
12. control methods as claimed in claim 10 it is characterised in that
Described obtaining step includes voltage and/or frequency detecting step, obtains described voltage and/or described frequency.
13. control methods as described in any one of claim 9-12 it is characterised in that
This matching step, the described parameter of the electrical network that described obtaining step is obtained is compared with the parameter of described electric system
Relatively, and output matching or unmatched comparative result.
14. control methods as claimed in claim 13 it is characterised in that
Prestore or obtain in real time the parameter of the described electric system grid-connected with described electrical network, for described comparison.
15. control methods as described in any one of claim 9-14 it is characterised in that
Described set-up procedure includes voltage regulator module and/or frequency set-up procedure；
Described voltage regulation step, adjusts described voltage；And
Described frequency set-up procedure, adjusts described frequency.
16. control methods as claimed in claim 15 it is characterised in that
If voltage mismatches, described voltage regulation step determines the modulation ratio of current transformer in described electric system, according to acquisition
The ratio of the voltage of described electrical network and described modulation ratio obtain busbar voltage command value；And/or
If frequency mismatches, described frequency set-up procedure, this frequency obtaining is multiplied by a coefficient and obtains the frequency after adjustment.
A kind of 17. electric systems are it is characterised in that be provided with the control device described in any one of claim 1-8.
18. electric systems as claimed in claim 17 are it is characterised in that described electric system is PV air-conditioner.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610831475.4A CN106385057A (en) | 2016-09-19 | 2016-09-19 | Control device, control method, and electric appliance system |
| PCT/CN2017/078277 WO2018049805A1 (en) | 2016-09-19 | 2017-03-27 | Control device, control method and electric system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610831475.4A CN106385057A (en) | 2016-09-19 | 2016-09-19 | Control device, control method, and electric appliance system |
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| CN106385057A true CN106385057A (en) | 2017-02-08 |
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| CN201610831475.4A Pending CN106385057A (en) | 2016-09-19 | 2016-09-19 | Control device, control method, and electric appliance system |
Country Status (2)
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| CN (1) | CN106385057A (en) |
| WO (1) | WO2018049805A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018049805A1 (en) * | 2016-09-19 | 2018-03-22 | 珠海格力电器股份有限公司 | Control device, control method and electric system |
| CN109494788A (en) * | 2018-11-08 | 2019-03-19 | 珠海格力电器股份有限公司 | Photovoltaic electric system and its voltage protection value control method, device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162871A (en) * | 2007-09-28 | 2008-04-16 | 艾默生网络能源有限公司 | Method for prompting the range of air conditioner accommodating electric network electric voltage and frequency and device thereof |
| CN102486330A (en) * | 2010-12-03 | 2012-06-06 | 湖南大学 | Intelligent air-conditioner adjusting device based on active security response of user |
| CN104868492A (en) * | 2014-02-20 | 2015-08-26 | 西门子工厂自动化工程有限公司 | Power control method of grid connected power supply inversion device |
| US20150323945A1 (en) * | 2014-05-12 | 2015-11-12 | Stmicroelectronics International N.V. | Stand-alone dc power system for networks not connected to the grid |
| CN105387569A (en) * | 2015-11-30 | 2016-03-09 | 珠海格力电器股份有限公司 | Photovoltaic air-conditioner system control method and device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100502198C (en) * | 2007-01-22 | 2009-06-17 | 广东志成冠军集团有限公司 | Multi-standard UPS power supply and realizing method thereof |
| CN103486682B (en) * | 2013-09-25 | 2021-09-28 | 珠海格力电器股份有限公司 | Photovoltaic air conditioning system |
| CN205544287U (en) * | 2016-01-28 | 2016-08-31 | 上海冠图电气科技有限公司 | Boats and ships bank electric system based on compound electric wire netting of alternating current -direct current |
| CN106385057A (en) * | 2016-09-19 | 2017-02-08 | 珠海格力电器股份有限公司 | Control device, control method, and electric appliance system |
-
2016
- 2016-09-19 CN CN201610831475.4A patent/CN106385057A/en active Pending
-
2017
- 2017-03-27 WO PCT/CN2017/078277 patent/WO2018049805A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162871A (en) * | 2007-09-28 | 2008-04-16 | 艾默生网络能源有限公司 | Method for prompting the range of air conditioner accommodating electric network electric voltage and frequency and device thereof |
| CN102486330A (en) * | 2010-12-03 | 2012-06-06 | 湖南大学 | Intelligent air-conditioner adjusting device based on active security response of user |
| CN104868492A (en) * | 2014-02-20 | 2015-08-26 | 西门子工厂自动化工程有限公司 | Power control method of grid connected power supply inversion device |
| US20150323945A1 (en) * | 2014-05-12 | 2015-11-12 | Stmicroelectronics International N.V. | Stand-alone dc power system for networks not connected to the grid |
| CN105387569A (en) * | 2015-11-30 | 2016-03-09 | 珠海格力电器股份有限公司 | Photovoltaic air-conditioner system control method and device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018049805A1 (en) * | 2016-09-19 | 2018-03-22 | 珠海格力电器股份有限公司 | Control device, control method and electric system |
| CN109494788A (en) * | 2018-11-08 | 2019-03-19 | 珠海格力电器股份有限公司 | Photovoltaic electric system and its voltage protection value control method, device |
| US11831151B2 (en) | 2018-11-08 | 2023-11-28 | Gree Electric Appliances, Inc. Of Zhuhai | Photovoltaic electric appliance system, method and device of controlling voltage protection value thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018049805A1 (en) | 2018-03-22 |
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Application publication date: 20170208 |