CN105094203B - A kind of control method of multichannel Boost circuit - Google Patents
A kind of control method of multichannel Boost circuit Download PDFInfo
- Publication number
- CN105094203B CN105094203B CN201510501389.2A CN201510501389A CN105094203B CN 105094203 B CN105094203 B CN 105094203B CN 201510501389 A CN201510501389 A CN 201510501389A CN 105094203 B CN105094203 B CN 105094203B
- Authority
- CN
- China
- Prior art keywords
- boost
- voltages
- road
- boost circuit
- condition
- 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.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The embodiment of the present invention proposes a kind of control method of multichannel Boost work switching, the optimization of inverter power output can be realized, the detailed position parameter k proposed by the technical program and the relation of power curve, operating point location in power curve can be judged according to the size of position parameter k, and then control the mode of operation of Boost, can reduce because of the switching loss that Boost work brings, improve the whole efficiency of system.
Description
Technical field
The present invention relates to a kind of control method of Boost circuit, more particularly to the multichannel Boost based on photovoltaic DC-to-AC converter
The control method of circuit.
Background technology
Constantly be taken seriously with environmental problem and country energy strategy problem, large-scale development novel energy obtains
The most attention of countries in the world, New Energy Industry turns into industry with fastest developing speed in the world, and solar power generation will be in two Pius XIs
Record and exceed nuclear power as one of most important basic energy resource.
Group serial type photovoltaic DC-to-AC converter is one of current photovoltaic combining inverter important composition, according to the difference point that it is input into
For：Single channel MPPT (Maximum Power Point Tracking, MPPT maximum power point tracking) and multichannel MPPT types.
The difference of single channel MPPT and multichannel MPPT control modes is：
1, from the point of view of the switching whether Boost is stopped, there are various possibilities in multichannel Boost, can be multichannel
The Boost of PV switches simultaneously, or is switched over according to corresponding conditionses one by one.
2, from the point of view of MPPT algorithm, single channel PV only one of which Boost, and need to complete n road Boost simultaneously now, if depositing
Situation about being stopped in i (1≤i≤n) road PV Boost realizes unified MPPT, it is necessary to be directed to i roads PV, and other roads PV palpuses
Start Boost work, the respective MPPT of complete independently.
The logic of the control start and stop of single channel Boost is simple, and multichannel PV is input into the complicated journey of corresponding Boost start-up and shut-down control
Degree is significantly improved, and the diversity of control also accordingly increases.In order to realize the maximization of PV power outputs, it is intended that each road PV and
Its Boost can work independently, and each possess independent MPPT controls.When each road PV voltages are less than line voltage, each road PV
Corresponding Boost starts work, and respective complete independently MPPT, the power of each road PV outputs can be realized maximizing.However, such as
Fruit PV voltages are higher than line voltage, and to allow each road Boost all to work on, Bus voltages just need the maximum higher than PV voltages
It is worth, so not only Boost work has loss, and the switching loss of inverter is as improve for Bus voltages accordingly increases.
If allowing Boost corresponding higher than the PV of line voltage to be stopped, the switching loss of Boost, inverter can be not only avoided
Switching loss as Bus be operated in maximum PV voltages on and reduce.When the different from those of each road PV is basically identical, adopt
Optical condition also close to when, the voltage of the maximum power point of each road PV is consistent, therefore, the PV that will be above line voltage is corresponding
Boost is stopped, and is conducive to improving the whole efficiency of photovoltaic system.But exist in practice each road PV characteristics it is inconsistent with
And the not equal probabilistic factor of illumination condition, therefore, it is more likely that there are multichannel PV voltages higher than line voltage, and each road PV
The larger situation of the voltage phase difference of maximum power point.The corresponding Boost of PV if above line voltage are stopped, certainly will
Deviate oneself maximum power point farther out in the operating point with some roads PV.Although Boost is stopped can reduce
Switching loss, but, because the MPPT efficiency of road PV is relatively low, the power for causing photovoltaic system to export is still reached to less than maximum
Change.Therefore, when each road PV is higher, Boost work can be stopped when should ensureing each road PV characteristic closes to reduce loss, and
Can guarantee that when the maximum power point voltage of some roads PV is less than real work point farther out, worked by restarting Boost, solely
The vertical MPPT for completing road PV, improves the efficiency of road MPPT, so as to ensure the maximum of photovoltaic system whole efficiency as far as possible
Change.Sum it up, the only efficiency of comprehensive assessment PV power outputs and Boost switching losses, select suitable Boost start and stop to cut
Condition is changed, the efficiency of photovoltaic generation could be as far as possible improved, therefore, in the occasion that multichannel PV characteristic differences are larger, seek one
Plant and be conducive to the maximized powerinjected method method of photovoltaic system power output, there is practical value very high.
The content of the invention：
To solve the above problems, the present invention proposes a kind of multichannel Boost control methods based on photovoltaic DC-to-AC converter.In simplification
Reduced while control due to the switching loss that Boost work brings, the grid-connected power of maximized optimization, there is provided economy effect
Benefit.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of control method of multichannel Boost circuit：The circuit includes：A plurality of Boost branch roads, every Boost branch road
It is electrically connected the input of corresponding photovoltaic module；After every same polarity terminal parallel connection of the output end of Boost branch roads electrically
It is connected to the direct-flow input end of corresponding inverter；The alternating current produced through inverter conversion is delivered to power network or load, and it is special
Levy and be：Methods described includes：Start Boost when Boost circuit meets entry condition；Stop bar when Boost circuit meets
Stop Boost during part.
Preferably, Boost circuit meets stop condition and is in the above method：
Condition 1：Road PV voltages set-point is stopped more than Boost and sets threshold values Uth1；Or
Condition 2：Road PV voltages and the given difference of Bus voltages are less than setting threshold values Uth3。
Preferably, Boost circuit meets entry condition and is in the above method：
Condition 1：PV voltages set-point starts operation setup threshold values U less than Boostth2；Or
Condition 2：The position parameter k values of road PV are more than setting threshold values Kth.
Further, above-mentioned k values are expressed as：K=1 at maximum power point, and power curve is right
Side k>1, power curve left side k<1, as power curve is moved from maximum power point at open-circuit voltage, coefficient k is near finger
Number form formula increases.
Beneficial effect
The Boost operation control methods proposed by the embodiment of the present invention, realize the optimization of inverter power output, lead to
The position parameter k and the relation of power curve of the technical program proposition are crossed, work can be judged according to the size of position parameter k
Point location in power curve, and then control the mode of operation of Boost, it is possible to reduce because of opening that Boost work brings
Loss is closed, the whole efficiency of system is improved.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
The photovoltaic system structure chart that Fig. 1 is input into for the multichannel Boost of the embodiment of the present invention；
The control schematic diagram that Fig. 2 starts and stop for the single channel Boost of the embodiment of the present invention；
The control schematic diagram that Fig. 3 is stopped for the 1st road Boost of the embodiment of the present invention；
Fig. 4 is the i+1 (i of the embodiment of the present invention>1) control schematic diagram that road Boost is stopped；
Fig. 5 starts the control schematic diagram of Boost for the i roads PV for having stopped Boost work of the embodiment of the present invention simultaneously；
Fig. 6 is the graph of a relation between the PV power outputs and PV voltages of the embodiment of the present invention；
The control schematic diagram that Fig. 7 starts one by one for the corresponding Boost of PV of the deviation maximum power point of the embodiment of the present invention；
Fig. 8 for the embodiment of the present invention PV voltage Upv and PV power outputs P,AndCurved line relation schematic diagram；
Fig. 9 is the position parameter k and power output P of the embodiment of the present invention and the graph of a relation of photovoltaic module voltage；
Figure 10 is the position parameter k of the embodiment of the present invention and the graph of a relation of photovoltaic module temperature；
Figure 11 is the position parameter k of the embodiment of the present invention and the graph of a relation of intensity of illumination；
Figure 12 is a kind of control method flow chart of multichannel Boost of the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to specific embodiment and join
According to accompanying drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright scope.Additionally, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring this
The concept of invention.
In order to preferably describe technical scheme：Fig. 1, the photovoltaic system knot of multichannel Boost inputs are combined first
Composition (a kind of multichannel Boost circuit, including：A plurality of Boost branch roads, every Boost branch road is electrically connected corresponding photovoltaic group
The input of part；It is electrically connected after every same polarity terminal parallel connection of Boost branch road output ends defeated to the direct current of corresponding inverter
Enter end；Through inverter conversion produce alternating current be delivered to power network) describe single channel PV Boost start-up and shut-down control patterns switching, n
The control mode switch of Boost is obtained on the basis of single channel switching thinking when road PV is in parallel, the corresponding Boost controls of single channel PV
The process of pattern switching is as follows：As shown in Fig. 2 being PV single channel Boost startups and the control schematic diagram for stopping.Wherein, single channel PV
Corresponding Boost starts and the Rule of judgment of stopping is as follows：Boost stop conditions：Road PV voltage set-points stop more than Boost
Only operation setup threshold values Uth1；Boost entry conditions：The PV voltages set-point that Boost has stopped starting work and sets less than Boost
Determine threshold values Uth2。
During single channel Boost, the startup of Boost and stop corresponding operating mode, 5 sections of operation intervals can be divided into：
0~t1 time periods：
At this moment between in section, PV voltages are significantly less than Bus voltages, Boost normal works, and Bus voltages are given according to inverse
Become side electric information to obtain (magnitude of voltage can be previously set)；Boost circuit and inverter circuit control PV voltages and Bus electricity respectively
Pressure.
T1~t2 time periods：
During into the t1 moment, the difference of PV voltages and Bus voltages is less than certain setting value, but PV voltages not yet reach
The threshold voltage that Boost is stopped, in order to ensure the normal work of DC Boost, within the time period, the set-point quilt of Bus
Force higher than the given voltage certain values of PV.
T2~t3 time periods：
During into the t2 moment, PV voltages give and reach the threshold voltage U that Boost is stoppedth1, now Bus voltages give
Definite value is set to PV voltage set-points, and Boost will be stopped, and the state is until what PV voltages were again started up less than Boost
Threshold voltage Uth2Untill.
T3~t4 time periods：
During into the t3 moment, PV voltages set-point is less than the threshold voltage U that Boost is again started upth2, DC sides are again started up
Boost works, and Boost circuit and inverter circuit control PV voltages and Bus voltages respectively again.In this stage, for the purposes of protecting
The normal work of card DC Boost, the set-point of Bus is forced higher than the given voltage certain values of PV.
After the t4 moment：
After the t4 moment, the given voltages of PV are less than Uth2After certain value, Bus voltages are given no longer restrained, completely by inverter side
Electric information is determined (the interval operating mode is consistent with 0~t1 time periods).
When n roads PV is in parallel, as shown in figure 3, because each road PV characteristics are inconsistent, causing the peak power of each road PV to work
Point is not quite similar, and certainly will there is certain the corresponding Boost circuits of PV are first stopped all the way situation, the corresponding Boost of the 1st road PV
The situation that circuit is stopped is consistent with the situation that the previously described corresponding Boost circuits of single channel PV are stopped.1st road PV
The condition that corresponding Boost circuit is stopped is as follows：
The condition that 1st road Boost is stopped：Road PV voltages set-point is stopped setting threshold values more than Boost
Uth1；
But, the i-th tunnel (1<I≤n) Rule of judgment of PV corresponding Boost circuits when being stopped then stop with the 1st tunnel
The Rule of judgment of the Boost of work is different.
I-th tunnel (1<I≤n) conditions that are stopped of Boost：Road PV voltages are given and the given difference of Bus voltages is small
In setting threshold values Uth3。
If as shown in figure 4, the total corresponding Boost circuits of i roads PV have been stopped, into t1 moment, i+1 bar PV
Setting value U is less than with the difference that Bus voltages giveth3When, the Boost corresponding to the PV of the road will be stopped, so far by total i+
The corresponding Boost of 1 PV is stopped, and this part PV enters centralization MPPT patterns.The given power by this i+1 bar of Bus
Change to determine, Jiang Zhe i+1 road PV regard an entirety as to complete centralized MPPT functions.
The control model of the corresponding Boost circuits of PV；It is divided into a) multichannel PV and starts Boost mode of operations, B simultaneously) multichannel
PV starts Boost mode of operations one by one.
A) multichannel PV starts Boost mode of operations simultaneously, and the PV voltages set-point for having stopped Boost work is less than Boost
Start operation setup threshold values Uth2。
If as shown in figure 5, the i roads PV voltages for having stopped Boost work are less than Boost startup threshold values Uth2When, this i road PV
Corresponding Boost circuit starts work simultaneously, and each road PV recovers each independent MPPT patterns, and Bus voltages are given by inversion
Side information is determined.
B) multichannel PV starts Boost mode of operations one by one
As shown in fig. 7, before time tl, the Boost circuit of existing n roads PV is stopped, and cuts Bus control models.
Cut out and power curve right side is in as shown in Fig. 6 orbicular spots and deviates maximum functional point PV farther out, start corresponding to the PV of the road
Boost circuit work, the actual maximum power point voltage that can prevent from having PV voltages and working voltage differ larger feelings
Condition, so as to be conducive to improving the efficiency of photovoltaic system totality MPPT.
Technical scheme：
Cause, the instantaneous output of photovoltaic battery panel is：P=UI, wherein, P is the power of PV outputs, and U is PV voltages, I
It is PV electric currents.
Instantaneous output is obtained to cell output voltage derivation：
When, the power output of photovoltaic cell reaches maximum.
Can derive：Operating point needs to meet following relation when being located at maximum power point：
As shown in figure 8, transverse axis is PV voltages, and the longitudinal axis is ratio, the PV of PV power outputs, current differential and voltage derivative
The ratio of output current and voltage.
As shown in figure 9, be the graph of a relation of position parameter k and photovoltaic module voltage, wherein, k is expressed as：As shown in figure 9, the k=1 at maximum power point, and power curve right side k>1, power curve left side k<1,
As power curve is moved from maximum power point at open-circuit voltage, coefficient k increases near exponential form.By further
Research discovery,
As shown in figure 9, there is one-to-one relation in the difference of power curve and coefficient k, as power is along curve
Right side constantly reduces, and coefficient k gradually increases.
Operating point location in power curve can be judged according to the size of position parameter k, and then is controlled
The mode of operation of Boost.
As shown in Figure 10, it is coefficient k value that power (takes the power points on the right side of power curve) at 0.995 times of peak power
With the relation of temperature, illumination is 1000W/m2, PV is cSi cell panels, and as can be seen from Figure during temperature change, coefficient k is by almost
It is not acted upon by temperature changes.
As shown in figure 11, it is coefficient k value that power (takes the power points on the right side of power curve) at 0.995 times of peak power
With the relation of illumination, temperature is 25 DEG C of definite value, and PV is cSi cell panels, and as can be seen from Figure during illumination variation, coefficient k is by almost
Do not influenceed by illumination variation.
Total way of PV components input is n (n>1) during, the i-th tunnel is input into for N roads PV components all the way, according to each road PV's
Whether the corresponding Boost circuits of each road PV of start and stop condition judgment work；As shown in figure 12, it is a kind of controlling party of multichannel Boost
Method：Methods described is comprised the following steps：
First, the start and stop condition of Boost is calculated,
The initial value of PV numberings i is set to 1,
Then, judge whether the i-th road Boost has been started up work,
If the i-th road Boost has been started up work,
Whether the Boost ways that judgement has been stopped are 0
If the Boost ways being stopped are 0,
Then judge whether the i-th road Boost meets stop condition 1,
If meeting condition, the i-th road Boost is stopped；Conversely, the i-th road Boost works on.
If the Boost ways being stopped are not 0,
Then judge whether the i-th road Boost meets stop condition 2,
If meeting condition, the i-th road Boost is stopped；Conversely, the i-th road Boost works on.
If the i-th road Boost has been stopped,
Whether the Boost ways that judgement has been stopped are 1
If the Boost ways being stopped are 1,
Then judge whether the i-th road Boost meets entry condition 1,
If meeting condition, the i-th road Boost starts work；Conversely, the i-th road Boost continues to be stopped.
If the Boost ways being stopped are not 1,
Then judge whether the i-th road Boost meets entry condition 1 or entry condition 2,
If meeting condition, the i-th road Boost starts work；Conversely, the i-th road Boost continues to be stopped.
Judge the start and stop working condition of the i-th road Boost, then judged whether i is equal to maximum PV way n,
If i is equal to n, terminate the judgement flow of Boost start and stop working conditions；
Conversely, i+1, continues cycling through above-mentioned judgement.
Condition stub：
The given calculation of PV voltages is as follows：
Operating mode 1：The Boost of all PV is in work
Each road PV gives according to respective PV output power informations complete independently MPPT, the voltage that each road PV is calculated alone
Value.
Operating mode 2：The Boost of at least 1 road PV stopped work
When the Boost of i roads (i=1~n, n are the total ways of PV) PV is stopped, regard this i road PV as an entirety,
Concentrate and complete MPPT, the PV voltages being calculated are given as Bus voltage set-points.And remaining other roads PV is calculated alone respectively
The voltage set-point of road PV.
In addition, it is to be understood that above-mentioned specific embodiment of the invention is used only for exemplary illustration or explains this
The principle of invention, without being construed as limiting the invention.Therefore, done without departing from the spirit and scope of the present invention
Any modification, equivalent substitution and improvements etc., should be included within the scope of the present invention.Additionally, the appended right of the present invention
It is required that the whole changes for being intended to fall into the equivalents on scope and border or this scope and border
Change and modification.
Claims (4)
1. a kind of control method of multichannel Boost circuit, the circuit includes：A plurality of Boost branch roads, every Boost branch road is equal
It is electrically connected the input of corresponding photovoltaic module；Electrically connect after every same polarity terminal parallel connection of the output end of Boost branch roads
It is connected to the direct-flow input end of corresponding inverter；The alternating current produced through inverter conversion is delivered to power network or load, and its feature exists
In：The control method includes：Start Boost circuit work when Boost circuit meets entry condition；When Boost circuit is full
Stop Boost circuit work during sufficient stop condition；Boost circuit meets stop condition and is in methods described：
Condition 1：The PV voltages set-point of the branch road is more than the setting threshold values U that Boost is stoppedth1；Or
Condition 2：The given difference of the PV voltages and Bus voltages of the branch road is less than setting threshold values Uth3。
2. the method for claim 1, it is characterised in that：Boost circuit meets multichannel trip bar simultaneously in the above method
Part is that PV voltages set-point starts operation setup threshold values U less than Boostth2；
Or
In the above method Boost circuit meet multichannel one by one entry condition be the branch road the corresponding position parameter k of PV voltages
Value is more than setting threshold values Kth。
3. method as claimed in claim 2, it is characterised in that：The position parameter k's is expressed as
4. method as claimed in claim 3, it is characterised in that：The position parameter k, the k=1 at maximum power point, and work(
Rate curve right side k>1, power curve left side k<1, as power curve is moved from maximum power point at open-circuit voltage, coefficient k
Near exponential form increase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501389.2A CN105094203B (en) | 2014-12-01 | 2015-08-14 | A kind of control method of multichannel Boost circuit |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718380 | 2014-12-01 | ||
| CN2014107183802 | 2014-12-01 | ||
| CN201510501389.2A CN105094203B (en) | 2014-12-01 | 2015-08-14 | A kind of control method of multichannel Boost circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105094203A CN105094203A (en) | 2015-11-25 |
| CN105094203B true CN105094203B (en) | 2017-07-07 |
Family
ID=54574866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510501389.2A Active CN105094203B (en) | 2014-12-01 | 2015-08-14 | A kind of control method of multichannel Boost circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105094203B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807841B (en) * | 2016-03-08 | 2018-03-30 | 艾思玛新能源技术（上海）有限公司苏州高新区分公司 | A kind of power ring controls limit for tonnage method and apparatus |
| CN105871324B (en) * | 2016-04-11 | 2017-12-15 | 厦门科华恒盛股份有限公司 | A kind of independent MPPT trackings of multichannel input photovoltaic inverting system |
| CN107742902B (en) * | 2017-11-14 | 2020-03-13 | 江苏佳讯纳通能源技术有限公司 | Multi-path MPPT input mode judgment method for photovoltaic inverter |
| CN111708401B (en) * | 2020-08-20 | 2020-11-20 | 浙江艾罗网络能源技术有限公司 | Photovoltaic module maximum power tracking method suitable for multiple connection modes |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237824A (en) * | 2010-12-30 | 2011-11-09 | 保定天威集团有限公司 | Photovoltaic (PV) inverter |
| CN104038088A (en) * | 2014-06-30 | 2014-09-10 | 阳光电源股份有限公司 | Method and device for controlling photovoltaic inverter circuit |
| CN104092240A (en) * | 2014-07-07 | 2014-10-08 | 阳光电源股份有限公司 | Method and system for recognizing connection mode of photovoltaic modules |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8964435B2 (en) * | 2011-09-26 | 2015-02-24 | General Electric Company | Methods and systems for operating a power converter |
| JP5978596B2 (en) * | 2011-11-07 | 2016-08-24 | ソニー株式会社 | Control apparatus and control method |
-
2015
- 2015-08-14 CN CN201510501389.2A patent/CN105094203B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237824A (en) * | 2010-12-30 | 2011-11-09 | 保定天威集团有限公司 | Photovoltaic (PV) inverter |
| CN104038088A (en) * | 2014-06-30 | 2014-09-10 | 阳光电源股份有限公司 | Method and device for controlling photovoltaic inverter circuit |
| CN104092240A (en) * | 2014-07-07 | 2014-10-08 | 阳光电源股份有限公司 | Method and system for recognizing connection mode of photovoltaic modules |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105094203A (en) | 2015-11-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102545257B (en) | Solar photovoltaic generating single-phase grid-connected inverter and control method thereof | |
| CN105094203B (en) | A kind of control method of multichannel Boost circuit | |
| CN204349909U (en) | A kind of high efficiency photovoltaic module power optimizer and use the photovoltaic array of this optimizer | |
| CN110042413A (en) | Non-grid connected wind power water electrolysis hydrogen production system and method | |
| CN102157959A (en) | Solar photovoltaic contravariant generating system and operation method thereof | |
| CN103166239A (en) | Centralized-distributed mixed novel energy power generation system and maximum power point tracking control method | |
| CN103795233A (en) | Modularized inverter power supply control method for intelligent start and stop polling mechanism | |
| CN104506135A (en) | High-efficiency photovoltaic module power optimizer | |
| CN106774607A (en) | A kind of photovoltaic maximum power tracking of on-line amending open-circuit voltage | |
| CN113767569A (en) | System and method for photovoltaic Direct Current (DC) bus control | |
| CN102118122B (en) | Method for realizing maximum power point tracking, generating module, control module and system | |
| CN105517653A (en) | Centralized MPPT exiting and switching method and application thereof | |
| CN104333026A (en) | Power feed-forward compensation based isolated operation direct current micro grid energy storage voltage stabilizing control method | |
| CN201985548U (en) | Solar photovoltaic inverting generation system | |
| CN105305505A (en) | Photovoltaic grid-connected inverter with voltage control function | |
| CN103259282A (en) | Soft cut-in method for non-isolated type photovoltaic grid-connected inverter and isolated type photovoltaic grid-connected inverter | |
| CN105141249B (en) | Photovoltaic array dynamic configuration reconstruct topological circuit and method under a kind of mismatch condition | |
| CN102410607B (en) | Wind energy and light energy complementary control system of convertible frequency air conditioner | |
| CN104135027A (en) | Photovoltaic variable frequency air conditioner and power supply control method thereof | |
| CN102868311A (en) | Inverter input-stage circuit with wide voltage input range and inverter | |
| CN107482671A (en) | Current mode photovoltaic combining inverter low voltage ride through control system and method | |
| Ram et al. | Performance of a hybrid ac/dc microgrid using res and super capacitor in grid connected and islanded mode | |
| CN205212448U (en) | Black start -up system suitable for light stores up little electric wire netting | |
| CN105406513B (en) | Sharing control instruction current generation method in photovoltaic combining inverter parallel running | |
| CN107204731A (en) | Wind and solar hybrid generating system MPPT control method based on geometric mean |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190328 Address after: 212200 Gangxing Road 588, Yangzhong Economic Development Zone, Zhenjiang City, Jiangsu Province Patentee after: Aishiwei New Energy Technology (Yangzhong) Co., Ltd. Address before: 215011 No. 78 Keling Road, Suzhou High-tech Zone, Suzhou City, Jiangsu Province Patentee before: Aisima new energy technology (Shanghai) Co., Suzhou high tech Development Zone Branch |
|
| TR01 | Transfer of patent right |