CN219779790U - Energy-saving photovoltaic micro-inverter aging system - Google Patents
Energy-saving photovoltaic micro-inverter aging system Download PDFInfo
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- CN219779790U CN219779790U CN202320254970.9U CN202320254970U CN219779790U CN 219779790 U CN219779790 U CN 219779790U CN 202320254970 U CN202320254970 U CN 202320254970U CN 219779790 U CN219779790 U CN 219779790U
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- 230000032683 aging Effects 0.000 title claims abstract description 14
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- 238000004134 energy conservation Methods 0.000 abstract 1
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Abstract
The utility model discloses an energy-saving photovoltaic micro-inverter aging system which comprises a power grid, a customized switching power supply, a 110V photovoltaic inverter, a 220V photovoltaic inverter, a rectifying and filtering module, a boosting and inverting module, a first control protection unit and a second control protection unit, wherein the output end of the power grid is connected with the input end of the customized switching power supply, the output end of the customized switching power supply is respectively connected with the input end of the 110V photovoltaic inverter and the input end of the 220V photovoltaic inverter, the output end of the 110V photovoltaic inverter is connected with the input end of the rectifying and filtering module, the output end of the rectifying and filtering module is connected with the input end of the first control protection unit, and the output end of the first control protection unit is connected with the input end of the power grid. The utility model improves the quality of the power grid, has high PF value of the power grid, stable aging process of the harmonic small inverter of the power grid, and energy conservation of up to 70% when the power generated by the 110V inverter is transmitted to the power grid for secondary utilization.
Description
Technical Field
The utility model relates to the technical field of photovoltaic micro-inverter aging, in particular to an energy-saving photovoltaic micro-inverter aging system.
Background
The traditional inverter ageing scheme has low efficiency, large power grid interference and difficult inverter grid connection when the inductive load in the power grid is more;
scene 1, a plurality of inverters age simultaneously to cause a network drop phenomenon, wherein the plurality of inverters use a high-power supply;
scene 2, single inverter breaks down, and the inverter corresponding to the same power supply is required to be aged again, so that the overall efficiency is low.
The disadvantages in the two cases above are that,
scene 1, unsuccessful grid connection, multiple grid connection, low power efficiency and PF of the high-power supply
The power generated by the inverter of scene 2 and 110VAC cannot be normally used and consumed, so that the inverter with high 110V grid voltage is seriously disconnected, and a great amount of social resource waste is caused.
Disclosure of Invention
The utility model aims to provide an energy-saving photovoltaic micro-inverter aging system so as to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the energy-saving photovoltaic micro-inverter aging system comprises a power grid, a customized switching power supply, a 110V photovoltaic inverter, a 220V photovoltaic inverter, a rectifying and filtering module, a boosting and inverting module, a first control protection unit and a second control protection unit, wherein the output end of the power grid is connected with the input end of the customized switching power supply, the output end of the customized switching power supply is respectively connected with the input end of the 110V photovoltaic inverter and the input end of the 220V photovoltaic inverter, the output end of the 110V photovoltaic inverter is connected with the input end of the rectifying and filtering module, the output end of the rectifying and filtering module is connected with the input end of the first control protection unit, and the output end of the first control protection unit is connected with the input end of the power grid; the output end of the 220V photovoltaic inverter is connected with the input end of the second control protection unit, and the output end of the second control protection unit is connected with the input end of the power grid.
Preferably, the customized switching power supply comprises a plurality of single switching power supplies, and the plurality of single switching power supplies are respectively connected with each photovoltaic inverter.
Compared with the prior art, the utility model has the beneficial effects that: the power grid quality is improved, the power grid PF value is high, the aging process of the power grid harmonic small inverter is stable, and the power generated by the 110V inverter is transmitted to the power grid for secondary utilization, so that the energy is saved by up to 70%.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the present utility model;
FIG. 2 is a wiring diagram of the present utility model;
fig. 3 is a wiring diagram of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Referring to fig. 1-3, in an embodiment of the present utility model, an energy-saving photovoltaic micro-inverter aging system includes a power grid, a customized switching power supply, a 110V photovoltaic inverter, a 220V photovoltaic inverter, a rectifying and filtering module, a boost inversion module, a first control protection unit, and a second control protection unit, where an output end of the power grid is connected with an input end of the customized switching power supply, an output end of the customized switching power supply is connected with an input end of the 110V photovoltaic inverter and an input end of the 220V photovoltaic inverter, an output end of the 110V photovoltaic inverter is connected with an input end of the rectifying and filtering module, an output end of the rectifying and filtering module is connected with an input end of the first control protection unit, and an output end of the first control protection unit is connected with an input end of the power grid; the output end of the 220V photovoltaic inverter is connected with the input end of the second control protection unit, and the output end of the second control protection unit is connected with the input end of the power grid.
Preferably, the customized switching power supply comprises a plurality of single switching power supplies, and the plurality of single switching power supplies are respectively connected with each photovoltaic inverter.
Each inverter is controlled by using an independent customized switching power supply (active PFC (power factor correction) (PF value can reach 0.99, THD is less than 5%), and the normal aging of other inverters is not affected due to the fact that a single inverter fails in the aging process;
the 110VAC inverter generates electricity, the electricity is rectified through the controllable rectifying module, the direct current of about 150VDC is obtained after capacitance filtering, the direct current is boosted to about 380V through the BOOST, and the inverter circuit inverts the 380VDC into 220VAC and sends the 220VAC to the power grid for cyclic use of the switching power supply.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (2)
1. An energy-saving photovoltaic micro-inverter aging system is characterized in that: the intelligent control system comprises a power grid, a customized switching power supply, a 110V photovoltaic inverter, a 220V photovoltaic inverter, a rectifying and filtering module, a boosting and inverting module, a first control protection unit and a second control protection unit, wherein the output end of the power grid is connected with the input end of the customized switching power supply, the output end of the customized switching power supply is respectively connected with the input end of the 110V photovoltaic inverter and the input end of the 220V photovoltaic inverter, the output end of the 110V photovoltaic inverter is connected with the input end of the rectifying and filtering module, the output end of the rectifying and filtering module is connected with the input end of the first control protection unit, and the output end of the first control protection unit is connected with the input end of the power grid; the output end of the 220V photovoltaic inverter is connected with the input end of the second control protection unit, and the output end of the second control protection unit is connected with the input end of the power grid.
2. The energy efficient photovoltaic micro-inverter burn-in system of claim 1, wherein: the customized switching power supply comprises a plurality of single switching power supplies which are respectively connected with each photovoltaic inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320254970.9U CN219779790U (en) | 2023-02-20 | 2023-02-20 | Energy-saving photovoltaic micro-inverter aging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320254970.9U CN219779790U (en) | 2023-02-20 | 2023-02-20 | Energy-saving photovoltaic micro-inverter aging system |
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| CN219779790U true CN219779790U (en) | 2023-09-29 |
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| CN202320254970.9U Active CN219779790U (en) | 2023-02-20 | 2023-02-20 | Energy-saving photovoltaic micro-inverter aging system |
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| CN (1) | CN219779790U (en) |
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2023
- 2023-02-20 CN CN202320254970.9U patent/CN219779790U/en active Active
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