CN108767884A - DC voltage-stabilizing control method and system - Google Patents
DC voltage-stabilizing control method and system Download PDFInfo
- Publication number
- CN108767884A CN108767884A CN201810816739.8A CN201810816739A CN108767884A CN 108767884 A CN108767884 A CN 108767884A CN 201810816739 A CN201810816739 A CN 201810816739A CN 108767884 A CN108767884 A CN 108767884A
- Authority
- CN
- China
- Prior art keywords
- voltage
- energy
- storage system
- stable
- pressure device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000004146 energy storage Methods 0.000 claims abstract description 50
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 14
- 230000005611 electricity Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 230000006641 stabilisation Effects 0.000 abstract description 4
- 238000011105 stabilization Methods 0.000 abstract description 4
- 238000011217 control strategy Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 6
- 239000003381 stabilizer Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009183 running Effects 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- 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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
Abstract
This application involves a kind of DC voltage-stabilizing control method and system, the method includes：Obtain the operating parameter of energy-storage system；Judge whether to need to carry out voltage control according to the operating parameter；If desired, executing preset control instruction.The present invention by monitoring the relevant parameter of energy-storage system in real time, when monitoring that DC input voitage grade is relatively low or DC input voitage range fluctuates other than the larger value range to setting, automatically preset voltage stabilizing control instruction is executed, by output voltage stabilization in rated range value, ensure that energy-storage system is reliablely and stablely run.
Description
Technical field
This application involves technical field of electric control, and in particular to a kind of DC voltage-stabilizing control method and system.
Background technology
Necessity of the energy-storage system in current electric system gradually aggravates, and application scenarios are mainly the following.It is first
First, with the infiltration ratio cumulative year after year of generation of electricity by new energy, the uncontrollable electricity characteristic brought is more apparent, thus needs energy storage
System stabilizes the power swing that generation of electricity by new energy is brought.Secondly as the peak-frequency regulation that power demand generates, causes traditional tune
Peak unit efficiency is low, less economical, it is desirable that energy-storage system has faster start and stop response speed, and has good economy.
The other application scene of energy-storage system, does not repeat one by one herein.
Energy-storage system at runtime, due to being a lasting charge and discharge process, when DC input voitage grade compared with
The fluctuation of low or DC input voitage range is larger, when being more than the range of nominal tension design value of AC/DC convertor, energy storage
The exchange side of system can not four quadrant running, and then influence whether entire control logic, such as carry out power flow control.And
And when DC voltage grade is less than voltage range design value, volume operation can only drop in energy-storage system, thus can not support set
Power capacity, force Upper system to lose set control strategy to target distribution network.Further, energy-storage system passes through
After the operation of certain time, battery life can decay and consistency is deteriorated, this can cause the rapidity of fading of DC voltage very fast.
In the related technology, there are no ripe technical solutions to ensure the stabilization of energy-storage system system output voltage, into
And ensure that the exchange side of energy-storage system reliably executes control strategy, stablize output rated power.
Invention content
When to solve energy-storage system operation, DC input voitage grade is relatively low or the fluctuation of DC input voitage range compared with
Greatly, the problem of long-time stability of energy-storage system being adversely affected, the application provide a kind of DC voltage-stabilizing control method and
System.
According to the embodiment of the present application in a first aspect, providing a kind of DC voltage-stabilizing control method, this method is applied to energy storage
System；The method includes：
Obtain the operating parameter of energy-storage system；
Judge whether to need to carry out voltage control according to the operating parameter；
If desired, executing preset control instruction.
Further, the energy-storage system includes AC/DC convertor and accumulator；
The then operating parameter for obtaining energy-storage system, including：
Obtain the range of operation value of the AC/DC convertor；
Obtain battery side voltage value；The battery side voltage value is the output voltage values of the accumulator.
Further, described to be judged whether to need to carry out voltage control according to the operating parameter, including：
The battery side voltage value is compared with the range of operation value, according to comparison result determine the need for into
Row voltage controls.
Further, described to be determined the need for carrying out voltage control according to comparison result, including：
If the battery side voltage value has exceeded the range of operation value, judgement needs to carry out voltage control.
Further, the energy-storage system includes stable-pressure device；
The then preset control instruction of execution, including：
Control signal is sent to the stable-pressure device, so that the stable-pressure device starts potentiostatic mode.
Further, the method further includes：
When that need not carry out voltage control, the stable-pressure device works in bypass mode.
According to the second aspect of the embodiment of the present application, a kind of DC voltage-stabilizing control system is provided, including：Master controller, letter
Number acquisition module and stable-pressure device；The signal acquisition module is electrically connected with the master controller, for acquiring the voltage stabilizing dress
The input voltage and output voltage set；
The stable-pressure device includes bypass module and Voltage stabilizing module；The bypass module and the Voltage stabilizing module respectively with institute
State master controller electrical connection；The master controller can control the work of the bypass module and the Voltage stabilizing module.
Further, the quantity of the stable-pressure device is multiple；Multiple stable-pressure devices are arranged in parallel, and respectively with institute
State master controller electrical connection.
According to the third aspect of the embodiment of the present application, a kind of energy-storage system, including DC voltage-stabilizing as elucidated before are provided
Control system.
Further, the energy-storage system further includes accumulator and AC/DC convertor；The output end of the accumulator with
The input terminal of the stable-pressure device connects；The output end of the stable-pressure device is connect with the AC/DC convertor；It is described to hand over directly
Current converter is powered to power distribution network.
The technical solution that embodiments herein provides can include the following benefits：
The present invention by monitoring the relevant parameter of energy-storage system in real time, monitor DC input voitage grade it is relatively low or
When DC input voitage range is fluctuated other than the larger value range to setting, preset voltage stabilizing control instruction is executed automatically, it will be defeated
Go out voltage stabilization in rated range value, ensures that energy-storage system is reliablely and stablely run.
It should be understood that above general description and following detailed description is only exemplary and explanatory, not
The application can be limited.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and the principle together with specification for explaining the application.
Fig. 1 is a kind of flow chart of DC voltage-stabilizing control method shown according to an exemplary embodiment.
Fig. 2 is a kind of circuit block diagram of DC voltage-stabilizing control system shown according to an exemplary embodiment.
Fig. 3 is a kind of energy-storage system structural schematic diagram shown according to an exemplary embodiment.
Fig. 4 is a kind of logic chart of DC voltage-stabilizing control method shown according to an exemplary embodiment.
Fig. 5 is a kind of high-level schematic functional block diagram of DC voltage-stabilizing control system shown according to an exemplary embodiment.
Fig. 6 is a kind of operating mode schematic diagram of DC voltage-stabilizing control system shown according to an exemplary embodiment.
Fig. 7 is a kind of multi-machine parallel connection schematic diagram of DC voltage-stabilizing control system shown according to an exemplary embodiment.
Specific implementation mode
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of consistent device and method of some aspects be described in detail in claims, the application.
Fig. 1 is a kind of flow chart of DC voltage-stabilizing control method shown according to an exemplary embodiment, this method application
In energy-storage system.As shown in Figure 1, including the following steps：
Step 101：Obtain the operating parameter of energy-storage system；
Step 102：Judge whether to need to carry out voltage control according to the operating parameter；
Step 103：If desired, executing preset control instruction.
In some embodiments, the energy-storage system includes AC/DC convertor and accumulator；
The then step 101 obtains the operating parameter of energy-storage system, including：
Obtain the range of operation value of the AC/DC convertor；
Obtain battery side voltage value；The battery side voltage value is the output voltage values of the accumulator.
In some embodiments, the step 102 judges whether to need to carry out voltage control, packet according to the operating parameter
It includes：
The battery side voltage value is compared with the range of operation value, according to comparison result determine the need for into
Row voltage controls.
It is described to be determined the need for carrying out voltage control according to comparison result in some embodiments, including：
If the battery side voltage value has exceeded the range of operation value, judgement needs to carry out voltage control.
In some embodiments, the energy-storage system includes stable-pressure device；
Then in step 103, the preset control instruction of execution, including：
Control signal is sent to the stable-pressure device, so that the stable-pressure device starts potentiostatic mode.
In some embodiments, the method further includes：
When that need not carry out voltage control, the stable-pressure device works in bypass mode.
Fig. 2 is a kind of circuit block diagram of DC voltage-stabilizing control system shown according to an exemplary embodiment.
As shown in Fig. 2, DC voltage-stabilizing control system includes：Master controller 201, signal acquisition module 202 and stable-pressure device
203；The signal acquisition module is electrically connected with the master controller, the input voltage for acquiring the stable-pressure device and output
Voltage；
The stable-pressure device includes bypass module and Voltage stabilizing module；The bypass module and the Voltage stabilizing module respectively with institute
State master controller electrical connection；The master controller can control the work of the bypass module and the Voltage stabilizing module.
In some embodiments, the quantity of the stable-pressure device is multiple；Multiple stable-pressure devices are arranged in parallel, and respectively
It is electrically connected with the master controller.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, explanation will be not set forth in detail herein.
The application also provides following embodiment：
A kind of energy-storage system, including DC voltage-stabilizing control system as elucidated before.
In some embodiments, the energy-storage system further includes accumulator and AC/DC convertor；The output of the accumulator
End is connect with the input terminal of the stable-pressure device；The output end of the stable-pressure device is connect with the AC/DC convertor；It is described
AC/DC convertor is powered to power distribution network.
For this patent is described in further detail, expansion explanation is carried out to embodiments herein.
As shown in figure 3, being energy-storage system schematic diagram.Wherein, in dotted line frame it is DC voltage-stabilizing control system, input termination
Enter battery system, outlet side accesses AC/DC convertor.DC voltage by monitoring battery side in real time becomes with higher level's alternating current-direct current
Parallel operation range of operation value, carries out logic judgment and executes control strategy, executes corresponding control strategy by different voltages value, issues
Instruct execution level control electric power electronic module and bypass module.
As shown in figure 4, for the logic chart of DC voltage-stabilizing control method.Judge whether stable direct current in energy-storage system
The strategy of pressure is the working condition by monitoring battery side operation in real time, when battery side voltage outside range boundary value, at once
The logic for running voltage stabilizing control strategy, the control strategy of input direct-flow voltage stabilizer the case where by judging boundary value.It is same herein
When direct-flow voltage stabilizer module and bypass module between have a control interlock logic, instruction is issued to rapidly bypass module and and upper layer
Control logic makes a response action after carrying out the judgement of control strategy again, that is, puts into DC voltage-stabilizing module, cuts off bypass module.If
Logic is not up to executed, is judged by circle logic, the monitoring back to top level control logic recycles, and keeps bypass initial shape
State.To reach the stabilization input voltage of real-time guarantees AC/DC convertor.
As shown in figure 5, for the high-level schematic functional block diagram of DC voltage-stabilizing control system.It acquires signaling module, supports multiclass
The acquisition analog quantity port of type inputs, and the main voltage for acquiring battery side input, the magnitude of current upload the data to DC voltage-stabilizing dress
The controller set carries out operation reserve analysis, if input voltage stabilizing control strategy, and carry out remaining battery capacity calculating etc.；?
When doing DC voltage-stabilizing operation, according to the operation control strategy in Fig. 4, the drive module for the DC voltage-stabilizing that sends instructions under quick passes through
Drive signal puts into operation direct-flow voltage stabilizer.
As shown in fig. 6, for the operating mode schematic diagram of DC voltage-stabilizing control system.It is issued according to controller operation reserve
Instruction, direct-flow voltage stabilizer can be divided into two kinds of major loop switching patterns：DC voltage-stabilizing pattern, routine bypass pattern.Such as Fig. 4 centers
Figure logic controls signaling module to switching according to policy distribution instruction, makes it when controller runs routine bypass pattern strategy
Into conventional start-up mode, it is closed QF2, disconnects QF1, since battery side DC voltage is within the scope of limit value, can ensure that friendship is straight
Current converter normal operation；When controller runs DC voltage-stabilizing pattern strategy, send instructions to switching control under foundation control strategy
Signaling module processed makes it into DC voltage-stabilizing pattern, and switch QF2 is disconnected, and switch QF1 is closed, and electric power electronic module IGBT starts
It puts into operation, exports steady dc voltage.
As shown in fig. 7, for the multi-machine parallel connection schematic diagram of DC voltage-stabilizing control system.The system topological of DC voltage-stabilizing controller
Design, the control module of a stable-pressure device can control multiple stable-pressure device output modules, provide power capacity simultaneously, and
Under the coordination control of controller, the output power module of multiple parallel runnings can perform mutually independent operation reserve；It is controlling
Unit processed starts in operation control algolithm multiple power output modules, to the parameter value of battery side input general power capacity,
It is evenly distributed to each output power module.Stable-pressure device output power module in this system by optimization system structure and its
Control algolithm, the width range for exporting DC bus-bar voltage is larger, can support the AC/DC convertor of mainstream market, and meets
Requirement to input voltage grade, so meeting the technology requirement of a variety of different voltages grades and power capacity.
Rated range boundary is arrived battery DC input voltage grade is relatively low or the fluctuation of DC input voitage range is larger
When value, the alternating current-direct current transverter of energy-storage system is since input direct-current voltage is relatively low when executing upper layer specific control strategy, by nothing
Method, which starts, to be executed.Wherein, when DC voltage is when being reduced to boundary value, energy-storage system may drop appearance operation even to stagnation
Operation.Therefore this method of the present invention, it is therefore an objective to when energy-storage system is run, real-time monitor battery side input voltage, work as electricity
Pressure is when surmounting range boundary value, by the method for the invention in direct-flow voltage stabilizer, improve and stable DC input voltage, make
It ensures stability when energy-storage system operation.
DC voltage-stabilizing control method provided by the invention, can solve energy-storage system DC input voitage grade it is relatively low or
When the fluctuation of person's DC input voitage range is larger, AC/DC convertor can not execute the control strategy of top level control system, even
The problem of forcing AC/DC convertor to be stopped transport.And in the energy-storage system of the present invention, DC voltage-stabilizing controller can configure multiple work(
Rate module, power grade flexible ratio, expansion is strong, and a variety of energy-storage battery switchings is supported to run, can effective guarantee energy-storage system
Stable operation.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the application includes other realization, wherein can not press shown or discuss suitable
Sequence, include according to involved function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be by the application
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the application can be realized with hardware, software, firmware or combination thereof.Above-mentioned
In embodiment, software that multiple steps or method can in memory and by suitable instruction execution system be executed with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that realize all or part of step that above-described embodiment method carries
Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium
In matter, which includes the steps that one or a combination set of embodiment of the method when being executed.
In addition, each functional unit in each embodiment of the application can be integrated in a processing module, it can also
That each unit physically exists alone, can also two or more units be integrated in a module.Above-mentioned integrated mould
The form that hardware had both may be used in block is realized, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized in the form of software function module and when sold or used as an independent product, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the application.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in can be combined in any suitable manner.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of DC voltage-stabilizing control method, this method is applied to energy-storage system；It is characterized in that, the method includes：
Obtain the operating parameter of energy-storage system；
Judge whether to need to carry out voltage control according to the operating parameter；
If desired, executing preset control instruction.
2. according to the method described in claim 1, it is characterized in that, the energy-storage system includes AC/DC convertor and electric power storage
Pond；
The then operating parameter for obtaining energy-storage system, including：
Obtain the range of operation value of the AC/DC convertor；
Obtain battery side voltage value；The battery side voltage value is the output voltage values of the accumulator.
3. according to the method described in claim 2, it is characterized in that, described judge whether to need to carry out according to the operating parameter
Voltage controls, including：
The battery side voltage value is compared with the range of operation value, is determined the need for carrying out electricity according to comparison result
Voltage-controlled system.
4. according to the method described in claim 3, it is characterized in that, described determine the need for carrying out voltage according to comparison result
Control, including：
If the battery side voltage value has exceeded the range of operation value, judgement needs to carry out voltage control.
5. according to claim 1-4 any one of them methods, which is characterized in that the energy-storage system includes stable-pressure device；
The then preset control instruction of execution, including：
Control signal is sent to the stable-pressure device, so that the stable-pressure device starts potentiostatic mode.
6. according to the method described in claim 5, it is characterized in that, further including：
When that need not carry out voltage control, the stable-pressure device works in bypass mode.
7. a kind of DC voltage-stabilizing control system, which is characterized in that including：Master controller, signal acquisition module and stable-pressure device；Institute
It states signal acquisition module to be electrically connected with the master controller, input voltage and output voltage for acquiring the stable-pressure device；
The stable-pressure device includes bypass module and Voltage stabilizing module；The bypass module and the Voltage stabilizing module respectively with the master
Controller is electrically connected；The master controller can control the work of the bypass module and the Voltage stabilizing module.
8. system according to claim 7, it is characterised in that：The quantity of the stable-pressure device is multiple；It is multiple described steady
Pressure device is arranged in parallel, and is electrically connected respectively with the master controller.
9. a kind of energy-storage system, which is characterized in that including DC voltage-stabilizing control system as claimed in claim 7 or 8.
10. energy-storage system according to claim 9, it is characterised in that：
The energy-storage system further includes accumulator and AC/DC convertor；The output end of the accumulator and the stable-pressure device
Input terminal connects；The output end of the stable-pressure device is connect with the AC/DC convertor；The AC/DC convertor is to distribution
Net power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810816739.8A CN108767884A (en) | 2018-07-20 | 2018-07-20 | DC voltage-stabilizing control method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810816739.8A CN108767884A (en) | 2018-07-20 | 2018-07-20 | DC voltage-stabilizing control method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108767884A true CN108767884A (en) | 2018-11-06 |
Family
ID=63971348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810816739.8A Pending CN108767884A (en) | 2018-07-20 | 2018-07-20 | DC voltage-stabilizing control method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108767884A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020103481A1 (en) * | 2018-11-19 | 2020-05-28 | 珠海格力电器股份有限公司 | Direct current electric appliance control method and direct current electric appliance |
| WO2021196627A1 (en) * | 2020-03-31 | 2021-10-07 | 科华恒盛股份有限公司 | Bidirectional converter-based forsmark effect suppression method and apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1725611A (en) * | 2005-07-12 | 2006-01-25 | 中国船舶重工集团公司第七○九研究所 | Super wide range input DC power voltage stabilizing transformer |
| CN102751751A (en) * | 2012-04-24 | 2012-10-24 | 中国石油大学(北京) | Alternating current bus electronic control system of electric workover rig |
| CN105529798A (en) * | 2016-02-23 | 2016-04-27 | 清华大学 | Control method for energy storage equipment of charger system |
| CN208571620U (en) * | 2018-07-20 | 2019-03-01 | 桑德智慧能源有限公司 | DC voltage-stabilizing control system and energy-storage system |
-
2018
- 2018-07-20 CN CN201810816739.8A patent/CN108767884A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1725611A (en) * | 2005-07-12 | 2006-01-25 | 中国船舶重工集团公司第七○九研究所 | Super wide range input DC power voltage stabilizing transformer |
| CN102751751A (en) * | 2012-04-24 | 2012-10-24 | 中国石油大学(北京) | Alternating current bus electronic control system of electric workover rig |
| CN105529798A (en) * | 2016-02-23 | 2016-04-27 | 清华大学 | Control method for energy storage equipment of charger system |
| CN208571620U (en) * | 2018-07-20 | 2019-03-01 | 桑德智慧能源有限公司 | DC voltage-stabilizing control system and energy-storage system |
Non-Patent Citations (1)
| Title |
|---|
| 胡晨龙;: "光储直流微网电压稳定控制", 中国科技信息, no. 21, pages 25 - 27 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020103481A1 (en) * | 2018-11-19 | 2020-05-28 | 珠海格力电器股份有限公司 | Direct current electric appliance control method and direct current electric appliance |
| US11502511B2 (en) | 2018-11-19 | 2022-11-15 | Gree Electric Appliances, Inc. Of Zhuhai | Control method for direct current electrical device and direct current electrical device |
| WO2021196627A1 (en) * | 2020-03-31 | 2021-10-07 | 科华恒盛股份有限公司 | Bidirectional converter-based forsmark effect suppression method and apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109038642B (en) | Self-energy-storage multi-terminal flexible-straight system control method and device | |
| CN108767884A (en) | DC voltage-stabilizing control method and system | |
| CN107546771B (en) | High proportion wind-light storage accesses power distribution network multi-mode self-adaptive control method | |
| CN107340500A (en) | A kind of Radar Signal Processing platform dynamic power consumption control method and system | |
| CN108777496B (en) | Short-term load distribution method for water diversion type hydropower station with multiple machines in one hole | |
| CN208571620U (en) | DC voltage-stabilizing control system and energy-storage system | |
| CN116365605B (en) | Control system and method based on distributed energy supply requirements | |
| CN103023056A (en) | Micro-grid control method and micro-grid control device | |
| CN113162075A (en) | Three-phase imbalance active treatment method and device based on matching of transformer area characteristics and commutation targets | |
| CN107508313B (en) | A kind of micro-capacitance sensor and off-network control method and device | |
| CN107994573B (en) | Multi-objective optimization design method for multi-terminal flexible direct current power transmission system | |
| CN108364549A (en) | A kind of power converter integrated system for scientific research and teaching | |
| CN108306302A (en) | Control method, device and the storage medium of voltage | |
| CN110620393A (en) | Energy storage control method of wind storage micro-grid system and wind storage micro-grid system | |
| CN103825303B (en) | For the control appliance of hybrid power system | |
| CN207473914U (en) | A kind of power converter integrated system for scientific research and teaching | |
| CN106899033A (en) | The electricity generation system and its control method of many converter wind turbines | |
| Kumar et al. | Communication-free approach for frequency support in the mtdc grids-a comparative study | |
| CN108306283A (en) | The control method and device of micro-grid system | |
| CN106451560B (en) | A kind of cascaded H-bridges gird-connected inverter MPPT starting method and master controller | |
| CN107785967A (en) | Accumulation power supply system capacity balance control method, control device and equalizing system | |
| CN117289001A (en) | UPS and UPS power supply system suitable for realizing battery online test | |
| CN113809767A (en) | Novel multi-terminal flexible direct-current power distribution system coordination control method | |
| CN105226630B (en) | The control method and system of a kind of direct current micro-grid system | |
| CN108964105A (en) | The DC voltage control method and DC voltage controller of both-end flexible direct current occasion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |