CN207218628U - A kind of photovoltaic power optimizer - Google Patents
A kind of photovoltaic power optimizer Download PDFInfo
- Publication number
- CN207218628U CN207218628U CN201720910192.9U CN201720910192U CN207218628U CN 207218628 U CN207218628 U CN 207218628U CN 201720910192 U CN201720910192 U CN 201720910192U CN 207218628 U CN207218628 U CN 207218628U
- Authority
- CN
- China
- Prior art keywords
- converters
- way
- photovoltaic power
- power optimizer
- photovoltaic
- 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
Landscapes
- Dc-Dc Converters (AREA)
Abstract
This application discloses a kind of photovoltaic power optimizer, including two-way DC/DC converters, two sampling resistors and a controller, wherein：The input of the two-way DC/DC converters connects independent photovoltaic module, output end series connection respectively；The topological structure of two-way DC/DC converters mirror image each other；One end of described two sampling resistors and the common port of the two-way DC/DC converters are joined directly together；Described two sampling resistors point using the either end of any one sampling resistor as sample reference, samples the energy storage inductor electric current of the two-way DC/DC converters respectively, and exports to the controller.The application is available for two photovoltaic modulies to share a photovoltaic power optimizer, saves the input cost of photovoltaic power optimizer.
Description
Technical field
Technical field of photovoltaic power generation is the utility model is related to, more specifically to a kind of photovoltaic power optimizer.
Background technology
In photovoltaic generating system, single photovoltaic module output is often not enough to provide voltage, the power of actual demand, because
Multiple photovoltaic modulies must be formed photovoltaic array to meet design requirement by this in the form of series, parallel.However, hidden by shade
The factor such as gear or photovoltaic module inherent parameters difference influences, and the output characteristics of different photovoltaic modulies may differ in photovoltaic array
Cause, this can cause the reduction of photovoltaic array output characteristics, that is, produce mismatch loss.
In order that each photovoltaic module output, unanimously so as to reduce mismatch loss, prior art is that each photovoltaic module is independent
(existing photovoltaic power optimizer is single input to one photovoltaic power optimizer of configuration, therefore a photovoltaic power optimizer is only
Can be separately configured to a photovoltaic module), the photovoltaic power optimizer can optimize photovoltaic module output.
But a photovoltaic power optimizer is separately configured for each photovoltaic module, cost is too high.
Utility model content
In view of this, the utility model provides a kind of photovoltaic power optimizer, is available for two photovoltaic modulies to share a light
Power optimization device is lied prostrate, to save the input cost of photovoltaic power optimizer, scheme is as follows：
A kind of photovoltaic power optimizer, including two-way DC/DC converters, two sampling resistors and a controller, wherein：
The input of the two-way DC/DC converters connects independent photovoltaic module, output end series connection respectively；
The topological structure of two-way DC/DC converters mirror image each other；
Described two sampling resistors point using the either end of any one sampling resistor as sample reference, samples institute respectively
The energy storage inductor electric current of two-way DC/DC converters is stated, and is exported to the controller；
One end of described two sampling resistors and the common port of the two-way DC/DC converters are joined directly together.
Wherein, the DC/DC converters are buck type circuit of synchronous rectification.
Or the DC/DC converters are Boost type circuit of synchronous rectification.
Or the DC/DC converters are Buck-Boost type circuit of synchronous rectification.
Or the DC/DC converters are buck circuits.
Or the DC/DC converters are Boost circuit.
Or the DC/DC converters are Buck-Boost circuits.
It can be seen from the above technical scheme that the utility model sets photovoltaic power optimizer to have the defeated of two-way independence
Enter and export all the way so that two photovoltaic modulies share a photovoltaic power optimizer, reduce structural member in whole system,
The cost of terminal, cable etc..Moreover, the two-way DC/DC converters in the photovoltaic power optimizer share a controller, because
And also reduce controller cost.In addition, to avoid that there is the input of two-way independence and defeated all the way using photovoltaic power optimizer
The setting gone out can cause high common-mode voltage be present between energy storage inductor current sample point and sample reference point, and the utility model is also set
Put the topological structure mirror image, and allow one end of two sampling resistors and this two-way DC/DC to convert each other of this two-way DC/DC converters
The common port of device is joined directly together, and now takes the either end of any one sampling resistor and can all solve height altogether as sample reference point
The problem of mode voltage.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of photovoltaic power optimizer topological structure schematic diagram disclosed in the utility model embodiment；
Fig. 2 is another photovoltaic power optimizer topological structure schematic diagram disclosed in the utility model embodiment；
Fig. 3 is another photovoltaic power optimizer topological structure schematic diagram disclosed in the utility model embodiment；
Fig. 4 is another photovoltaic power optimizer topological structure schematic diagram disclosed in the utility model embodiment；
Fig. 5 is another photovoltaic power optimizer topological structure schematic diagram disclosed in the utility model embodiment；
Fig. 6 is another photovoltaic power optimizer topological structure schematic diagram disclosed in the utility model embodiment；
Fig. 7 is another photovoltaic power optimizer topological structure schematic diagram disclosed in the utility model embodiment；
Fig. 8 is another photovoltaic power optimizer topological structure schematic diagram disclosed in the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1 is participated in, the utility model embodiment discloses a kind of photovoltaic power optimizer, and its building block includes two-way
DC/DC converters (being first via DC/DC converters 100 and the second road DC/DC converters 200 respectively), two sampling resistors (divide
It is not the first sampling resistor Shunt1 and the second sampling resistor Shunt2) and a controller (controller is not shown),
Its topological structure at least meets at following 2 points：
1) input of the two-way DC/DC converters connects independent photovoltaic module, output end series connection respectively.Concrete analysis
It is as follows：
The input of the two-way DC/DC converters connect respectively independent photovoltaic module, output end series connection, in particular to：
The positive input terminal Ti1+ and negative input terminal Ti1- of first via DC/DC converters 100 an indirect photovoltaic module, the second tunnel
The positive input terminal Ti2+ and negative input terminal Ti2- of DC/DC converters 200 another indirect photovoltaic module；First via DC/
The negative output terminal To1- of DC converters 100 is connected with the positive output terminal To2+ of the second road DC/DC converters 200；The first via
The negative output terminal To2- of the positive output terminal To1+ of DC/DC converters 100 and the second road DC/DC converters 102 respectively as
The positive and negative output terminals of photovoltaic power optimizer.
Now, photovoltaic power optimizer has the input of two-way independence and exported all the way, can be simultaneously to two photovoltaic groups
Part independently carries out output optimization, and so as to reduce the cost of structural member in whole system, terminal, cable etc., i.e. system cost drops
It is low.
2) topological structure of two-way DC/DC converters mirror image each other；One end of described two sampling resistors with it is described
The common port of two-way DC/DC converters is joined directly together；Described two sampling resistors are with the either end of any one sampling resistor
As sample reference point, the energy storage inductor electric current of the two-way DC/DC converters is sampled respectively, and is exported to the controller,
The energy storage inductor electric current of the two-way DC/DC converters obtained by the controller according to sampling, controls the two-way DC/DC
Switching tube turns on and off in converter, is docked at the output of the photovoltaic module of the input of the two-way DC/DC converters
Optimize.
In the case where the input of two-way DC/DC converters connects independent photovoltaic module, output end series connection respectively, due to
Electrical connection between this two-way DC/DC converters be present, so becoming sampling this two-way DC/DC respectively using two sampling resistors
During the energy storage inductor electric current of parallel operation, it is possible to occur the problem of high common-mode voltage being present between sampling resistor and sample reference point
(such as there is when the topological structure of this two-way DC/DC converters is identical and height between sampling resistor and sample reference point be present
The problem of common-mode voltage).On the other hand, the present embodiment propose it is above-mentioned 2) come avoid between sampling resistor and sample reference point exist height
Common-mode voltage, it is described in detail below：
So that the type of this two-way DC/DC converters is Boost type circuit of synchronous rectification as an example, when this two-way DC/DC is converted
The topological structure of device each other mirror image when, the topological structure of this two-way DC/DC converters is as shown in Figure 1.
In Fig. 1, first via DC/DC converters 100 include input capacitance C1, output capacitance C2, energy storage inductor L1, switch
Pipe Q1 and switching tube S1, wherein：C1 is connected in parallel on the input port of first via DC/DC converters 100；C2 is connected in parallel on first via DC/
The output port of DC converters 100；C1 high-pressure side is connected to C2 high-pressure side by L1, S1 successively；Q1 first end connection
L1 and S1 common port, Q1 the second end connection C1 and C2 low-pressure end.Second road DC/DC converters 200 include input capacitance
C3, output capacitance C4, energy storage inductor L2, switching tube Q2 and switching tube S2, wherein：C3 is connected in parallel on the second road DC/DC converters 200
Input port；C4 is connected in parallel on the output port of the second road DC/DC converters 200；C3 low-pressure end connects by L2, S2 successively
To C4 low-pressure end；Q2 first end connection C2 and C4 high-pressure side, Q2 the second end connection L2 and S2 common port.
In Fig. 1, one end of described two sampling resistors and the common port of the two-way DC/DC converters are joined directly together,
Specifically refer to：First sampling resistor Shunt1 is connected between C1 low-pressure end and Q1 the second end, the second sampling resistor Shunt2
It is connected between C3 high-pressure side and Q2 first end.
The two sampling resistors in Fig. 1 can be used as sample reference point using the common port of the two-way DC/DC converters
COM, the energy storage inductor electric current of the two-way DC/DC converters is sampled respectively.As shown in Figure 1, sample reference point COM adopts with two
All there is directly electrical connection, now being total between the first sampling resistor Shunt1 and sample reference point COM between sample resistance
Between voltage V1, the second sampling resistor Shunt2 and sample reference point COM of the mode voltage equal to the first sampling resistor Shunt1
Common-mode voltage is equal to the second sampling resistor Shunt2 voltage V2, due to resistance all very littles of two sampling resistors, so V1 and
High common-mode voltage is all not present between V2 all very littles, i.e. any one sampling resistor and sample reference point COM, now directly uses
Conventional difference channel realizes current sample, without carrying out isolation sampling, without using anti-high common-mode voltage
Sample circuit, therefore it is cheap to sample cost.
Further, since this two-way DC/DC converters share a controller, thus also reduce controller in whole system
Cost.
Seen from the above description, the present embodiment sets photovoltaic power optimizer to have the input of two-way independence and defeated all the way
Go out, so that two photovoltaic modulies share a photovoltaic power optimizer, reduce structural member in whole system, terminal, cable
Deng cost.Moreover, the two-way DC/DC converters in the photovoltaic power optimizer share a controller, thus also reduce
Controller cost.In addition, the setting for having the input of two-way independence to avoid photovoltaic power optimizer and exporting all the way can draw
Enter and the problem of high common-mode voltage between energy storage inductor current sample point and sample reference point be present, the present embodiment also sets up this two-way
The topological structure of DC/DC converters mirror image each other, and allow two sampling resistors one end and this two-way DC/DC converters it is public
End is joined directly together, and now takes the either end of any one sampling resistor and can all solve high common-mode voltage as sample reference point
Problem.
In addition it should be noted that the type of this two-way DC/DC converters is except using Boost type circuit of synchronous rectification
Outside, buck types circuit of synchronous rectification (as shown in Figure 2), Buck-Boost types circuit of synchronous rectification can also be used (such as Fig. 3 institutes
Show), Boost circuit (as shown in Figure 4), buck circuits (as shown in Figure 5) or Buck-Boost circuits (as shown in Figure 6).Specifically
It is described as follows：
As shown in Fig. 2 when the type of this two-way DC/DC converters is buck type circuit of synchronous rectification, first via DC/DC
Converter 100 includes input capacitance C1, output capacitance C2, energy storage inductor L1, switching tube Q1 and switching tube S1, wherein：C1 is in parallel
In the input port of first via DC/DC converters 100；C2 is connected in parallel on the output port of first via DC/DC converters 100；C1's
High-pressure side passes through successively
MU1713206Q1, L1 are connected to C2 high-pressure side；S1 first end connection Q1 and L1 common port, the second of S1
End connection C1 and C2 low-pressure end.Second road DC/DC converters 200 include input capacitance C3, output capacitance C4, energy storage inductor
L2, switching tube Q2 and switching tube S2, wherein：C3 is connected in parallel on the input port of the second road DC/DC converters 200；C4 is connected in parallel on
The output port of two road DC/DC converters 200；C3 low-pressure end is connected to C4 low-pressure end by Q2, L2 successively；The first of S2
End connection C2 and C4 high-pressure side, S2 the second end connection Q2 and L2 common port.
In fig. 2, the first sampling resistor Shunt1 is connected between C2 low-pressure end and S1 the second end, the second sampling resistor
Shunt2 is connected between C4 high-pressure side and S2 first end.
As shown in figure 3, when the type of this two-way DC/DC converters is Buck-Boost type circuit of synchronous rectification, first
Road DC/DC converters 100 include input capacitance C1, output capacitance C2, energy storage inductor L1, switching tube Q1, switching tube Q2, switching tube
S1 and switching tube S2, wherein：C1 is connected in parallel on the input port of first via DC/DC converters 100；C2 is connected in parallel on first via DC/DC
The output port of converter 100；C1 high-pressure side is connected to C2 high-pressure side through Q1, L1, S2 successively；S1 first termination Q1 and
L1 common port, S1 the second end connection C1 low-pressure end；Q2 the first termination L1 and S2 common port, Q2 the second end connection
C2 low-pressure end and S1 the second end.Second road DC/DC converters 200 include input capacitance C3, output capacitance C4, energy storage inductor
L2, switching tube Q3, switching tube Q4, switching tube S3 and switching tube S4, wherein：C3 is connected in parallel on the defeated of the second road DC/DC converters 200
Inbound port；C4 is connected in parallel on the output port of the second road DC/DC converters 200；C3 low-pressure end is connected to through Q3, L2, S4 successively
C4 low-pressure end；S3 the first termination C3 high-pressure side, S3 the second end connection Q3 and L2 common port；Q4 the first termination C4
High-pressure side and S3 first end, Q4 the second end connection L2 and S4 common port.
In figure 3, the first sampling resistor Shunt1 is connected between Q2 the second end and S1 the second end, the second sampling resistor
Shunt2 is connected between Q4 first end and S3 first end.
As shown in figure 4, when the type of this two-way DC/DC converters is Boost circuit, first via DC/DC converters 100
Including input capacitance C1, output capacitance C2, energy storage inductor L1, switching tube Q1 and diode D1, wherein：C1 is connected in parallel on the first via
The input port of DC/DC converters 100；C2 is connected in parallel on the output port of first via DC/DC converters 100；C1 high-pressure side according to
The secondary high-pressure side that C2 is connected to by L1, D1；Q1 first end connection L1 and D1 common port, Q1 the second end connection C1 and C2
Low-pressure end.Second road DC/DC converters 200 include input capacitance C3, output capacitance C4, energy storage inductor L2, switching tube Q2 and
Diode D2, wherein：C3 is connected in parallel on the input port of the second road DC/DC converters 200；C4 is connected in parallel on the second road DC/DC conversion
The output port of device 200；C3 low-pressure end is connected to C4 low-pressure end by L2, D2 successively；Q2 first end connection C2 and C4
High-pressure side, Q2 the second end connection L2 and D2 common port.
In Fig. 4, the first sampling resistor Shunt1 is connected between C1 low-pressure end and Q1 the second end, the second sampling resistor
Shunt2 is connected between C3 high-pressure side and Q2 first end.
As shown in figure 5, when the type of this two-way DC/DC converters is Buck circuits, first via DC/DC converters 100
Including input capacitance C1, output capacitance C2, energy storage inductor L1, switching tube Q1 and diode D1, wherein：C1 is connected in parallel on the first via
The input port of DC/DC converters 100；C2 is connected in parallel on the output port of first via DC/DC converters 100；C1 high-pressure side according to
The secondary high-pressure side that C2 is connected to by Q1, L1；D1 negative electrode connection Q1 and L1 common port, D1 anode connection C1's and C2 is low
Pressure side.Second road DC/DC converters 200 include input capacitance C3, output capacitance C4, energy storage inductor L2, switching tube Q2 and two poles
Pipe D2, wherein：C3 is connected in parallel on the input port of the second road DC/DC converters 200；C4 is connected in parallel on the second road DC/DC converters 200
Output port；C3 low-pressure end is connected to C4 low-pressure end by Q2, L2 successively；D2 negative electrode connection C2 and C4 high pressure
End, D2 anode connection Q2 and L2 common port.
In Figure 5, the first sampling resistor Shunt1 is connected between C2 low-pressure end and D1 anode, the second sampling resistor
Shunt2 is connected between C4 high-pressure side and D2 negative electrode.
As shown in fig. 6, when the type of this two-way DC/DC converters is Buck-Boost circuits, first via DC/DC conversion
Device 100 includes input capacitance C1, output capacitance C2, energy storage inductor L1, switching tube Q1, switching tube Q2, diode D1 and diode
D2, wherein：C1 is connected in parallel on the input port of first via DC/DC converters 100；C2 is connected in parallel on first via DC/DC converters 100
Output port；C1 high-pressure side is connected to C2 high-pressure side through Q1, L1, D2 successively；D1 negative electrode meets Q1 and L1 common port, D1
Anode connection C1 low-pressure end；Q2 the first termination L1 and D2 common port, Q2 the second end connection C2 low-pressure end and D1
Anode.Second road DC/DC converters 200 include input capacitance C3, output capacitance C4, energy storage inductor L2, switching tube Q3, switch
Pipe Q4, diode D3 and diode D4, wherein：C3 is connected in parallel on the input port of the second road DC/DC converters 200；C4 is connected in parallel on
The output port of second road DC/DC converters 200；C3 low-pressure end is connected to C4 low-pressure end through Q3, L2, D4 successively；D3's
Negative electrode connects C3 high-pressure side, D3 anode connection Q3 and L2 common port；Q4 the first termination C4 high-pressure side and D3 negative electrode,
Q4 the second end connection L2 and D4 common port.
In figure 6, the first sampling resistor Shunt1 is connected between Q2 the second end and D1 anode, the second sampling resistor
Shunt2 is connected between Q4 first end and D3 negative electrode.
In above-mentioned each photovoltaic power optimizer disclosed in the utility model, the difference of DC/DC transducer types is not
The realization of the utility model technique effect is influenceed, Fig. 2~Fig. 6 technique effect refers to Fig. 1 associated description, herein not
Repeat again.In practical application, the DC/DC converters of respective type are selected according to demand.
Finally it should also be noted that, in any of the above-described kind of photovoltaic power optimizer disclosed in the utility model, two
Sampling resistor, can also be with first via DC/ except can be using the common port of two-way DC/DC converters as sample reference point COM
The low-pressure end of input capacitance C1 in DC converters 100 is as sample reference point COM, or can also be become with the second road DC/DC
(Fig. 1-Fig. 6 is only with two sampling resistors with two-way as sample reference point COM for the high-pressure side of input capacitance C3 in parallel operation 200
The common port of DC/DC converters is as sample reference point COM as example)；That is, two sampling resistors are with any one
For the either end of sampling resistor as sample reference point, this, which will not result between sampling resistor and sample reference point, has height altogether
Mode voltage.It is described in detail below：
So that the type of this two-way DC/DC converters is Boost type circuit of synchronous rectification as an example, as shown in fig. 7, being adopted when two
Sample resistance is using input capacitance C1 low-pressure end as sample reference during point COM, the first sampling resistor Shunt1 and sample reference point
Common-mode voltage between COM is equal to V1, and the common-mode voltage between the second sampling resistor Shunt2 and sample reference point COM is equal to V1
+ V2, due to resistance all very littles of two sampling resistors, so V1 and V1+V2 also all very little, now in the absence of high common-mode voltage.
Still so that the type of this two-way DC/DC converters is Boost type circuit of synchronous rectification as an example, as shown in figure 8, when two
Sampling resistor is using input capacitance C3 high-pressure side as sample reference during point COM, the first sampling resistor Shunt1 and sample reference
Common-mode voltage between point COM is equal to V1+V2, the common-mode voltage between the second sampling resistor Shunt2 and sample reference point COM
Equal to V2, due to resistance all very littles of two sampling resistors, so V1 and V1+V2 also all very little, are now also not present high common mode
Voltage.
In summary, the utility model sets photovoltaic power optimizer to have the input of two-way independence and export all the way, from
And two photovoltaic modulies is shared a photovoltaic power optimizer, reduce structural member in whole system, terminal, cable etc. into
This.Moreover, the two-way DC/DC converters in the photovoltaic power optimizer share a controller, thus also reduce control
Device cost.In addition, to avoid the input that there is two-way independence using photovoltaic power optimizer and the setting exported all the way from causing
High common-mode voltage between energy storage inductor current sample point and sample reference point be present, the utility model also sets up this two-way DC/DC
The topological structure of converter mirror image, and make one end of two sampling resistors and the common port of this two-way DC/DC converters straight each other
Connect connected, asking for high common-mode voltage can all be solved as sample reference point by now taking the either end of any one sampling resistor
Topic.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (7)
1. a kind of photovoltaic power optimizer, it is characterised in that including two-way DC/DC converters, two sampling resistors and a control
Device processed, wherein：
The input of the two-way DC/DC converters connects independent photovoltaic module, output end series connection respectively；
The topological structure of two-way DC/DC converters mirror image each other；
One end of described two sampling resistors and the common port of the two-way DC/DC converters are joined directly together；
Described two sampling resistors point using the either end of any one sampling resistor as sample reference, samples described two respectively
The energy storage inductor electric current of road DC/DC converters, and export to the controller.
2. photovoltaic power optimizer according to claim 1, it is characterised in that the DC/DC converters are that buck types are same
Walk rectification circuit.
3. photovoltaic power optimizer according to claim 1, it is characterised in that the DC/DC converters are that Boost type is same
Walk rectification circuit.
4. photovoltaic power optimizer according to claim 1, it is characterised in that the DC/DC converters are Buck-
Boost type circuit of synchronous rectification.
5. photovoltaic power optimizer according to claim 1, it is characterised in that the DC/DC converters are buck circuits.
6. photovoltaic power optimizer according to claim 1, it is characterised in that the DC/DC converters are Boost electricity
Road.
7. photovoltaic power optimizer according to claim 1, it is characterised in that the DC/DC converters are Buck-
Boost circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720910192.9U CN207218628U (en) | 2017-07-25 | 2017-07-25 | A kind of photovoltaic power optimizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720910192.9U CN207218628U (en) | 2017-07-25 | 2017-07-25 | A kind of photovoltaic power optimizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207218628U true CN207218628U (en) | 2018-04-10 |
Family
ID=61813965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720910192.9U Active CN207218628U (en) | 2017-07-25 | 2017-07-25 | A kind of photovoltaic power optimizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207218628U (en) |
-
2017
- 2017-07-25 CN CN201720910192.9U patent/CN207218628U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106936319B (en) | Isolated three-port bidirectional DC-DC converter | |
| CN108365746B (en) | A kind of two-way four phase DC-DC converter of high-gain based on coupling inductance and control method | |
| CN102969893B (en) | A kind of high gain boost type DC converter | |
| CN103259433B (en) | High-frequency isolation type tri-level inverter based on forward converter | |
| CN107947572B (en) | A kind of series hybrid multiport DC/DC converter suitable for energy-storage units access | |
| CN203368328U (en) | Cascaded non-isolated bidirectional DC-DC converter | |
| CN103490628B (en) | A kind of single-phase high-gain boost converter | |
| CN106655775B (en) | Two-port input ZVT high-gain Boost converter with soft switch | |
| CN104868725A (en) | Booster type non-isolated three-port DC converter and control method thereof | |
| CN103780115A (en) | High-frequency isolated-type three-level inverter based on flyback converter | |
| CN103023366A (en) | Half-bridge five-electrical-level inverter and high-frequency insulation-type half-bridge five-electrical-level inverter | |
| CN209120060U (en) | High-gain DC/DC converter and power-supply system based on coupling inductance | |
| CN109194164A (en) | A kind of dual output AC/DC convertor and its control method | |
| CN204068691U (en) | Based on the multi input booster converter of switched capacitor network series connection | |
| CN109494987A (en) | Non-isolated multiport Bidirectional up-down die mould DC converter | |
| CN103066834A (en) | Staggered parallel high-gain boost type direct current (DC) converter | |
| CN104638911A (en) | Four-wire output converter and inverter comprising same | |
| CN107911024B (en) | A kind of high efficiency series hybrid multiport DC/DC converter | |
| CN109194143A (en) | A kind of isolation detection route of digital switch power supply medium-long range switching signal | |
| CN211377885U (en) | Output switching circuit | |
| CN105119486A (en) | Low voltage stress bidirectional DC/DC converter | |
| CN103236788B (en) | Bootstrap dual-input direct current converter | |
| CN207218628U (en) | A kind of photovoltaic power optimizer | |
| CN108988632B (en) | A kind of switch converters | |
| CN207588707U (en) | A kind of series hybrid multiport DC/DC converters suitable for energy-storage units access |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |