CN220524262U - Photovoltaic variable frequency air conditioner based on surplus electricity internet surfing - Google Patents
Photovoltaic variable frequency air conditioner based on surplus electricity internet surfing Download PDFInfo
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- CN220524262U CN220524262U CN202322192909.9U CN202322192909U CN220524262U CN 220524262 U CN220524262 U CN 220524262U CN 202322192909 U CN202322192909 U CN 202322192909U CN 220524262 U CN220524262 U CN 220524262U
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- 230000005611 electricity Effects 0.000 title claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 230000003750 conditioning effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 description 7
- 238000004378 air conditioning Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
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Abstract
The utility model discloses a photovoltaic variable frequency air conditioner based on residual electricity internet surfing, which relates to the technical field of air conditioners and comprises a variable frequency air conditioner, a photovoltaic module, a boosting module, an inverter, an energy management module, a variable frequency control module and a controller; the photovoltaic module is sequentially connected with the boosting module, the energy management module and the variable frequency control module; the inverter is connected between a commercial power grid and the boosting module; the energy management module is connected with the controller. The utility model realizes that the photovoltaic module is directly used for supplying power when the air conditioner works in daytime, and the photovoltaic module is used for generating electricity to carry out residual electricity surfing when the air conditioner does not work, so as to provide the power consumption of the air conditioner at night and the electric charge subsidy, thereby reducing the energy consumption and the electric charge of the air conditioner.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to a photovoltaic variable frequency air conditioner based on residual electricity internet surfing.
Background
At present, solar energy is inexhaustible clean energy for human beings, and has the characteristics of green, no pollution, sustainability and the like compared with the traditional petrochemical energy. With the improvement of the technology level, the solar energy is widely utilized, and the conversion and utilization of solar photovoltaic electric energy are a research hot spot in the 21 st century after the conversion and utilization of solar heat energy.
With the continuous improvement of the living standard of people, the air conditioner is used more and more widely, and the demand of the air conditioner is increased. Meanwhile, the demand of electricity is continuously increased in daily life of people, and particularly, the demand of electricity in summer is obviously increased due to the fact that air conditioners are used in a large amount. In summer, solar energy is strong, solar power generation efficiency is high, air conditioning refrigeration is carried out by using generated energy of solar energy, and the use of generated energy of fire coal is reduced, so that the solar energy air conditioning refrigeration system has obvious practical significance.
Therefore, how to design a photovoltaic variable frequency air conditioning system based on residual electricity internet surfing can realize that photovoltaic solar energy supplies power for an air conditioner, so that the excessive load on a commercial power grid during the use of the air conditioner in the daytime can be reduced, and the electricity expense can be saved. Meanwhile, the air conditioner is a small photovoltaic power station when in idle, and grid-connected power generation can be performed. Besides meeting the self power consumption requirement of the air conditioner, the household user can feed back the redundant electric quantity to the commercial power grid to provide electric energy for other electric appliances.
Disclosure of Invention
In view of the above, the utility model provides a photovoltaic variable frequency air conditioner based on residual electricity internet surfing, which solves the problems in the background technology.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a photovoltaic variable frequency air conditioner based on residual electricity internet surfing comprises a variable frequency air conditioner, a photovoltaic module, a boosting module, an inverter, an energy management module, a variable frequency control module and a controller;
the photovoltaic module is sequentially connected with the boosting module, the energy management module and the variable frequency control module;
the inverter is connected between a commercial power grid and the boosting module;
the energy management module is connected with the controller.
Optionally, a rectifying filter 8 is further connected between the utility grid and the energy management module.
Optionally, the boost module includes an MPPT control module and a dc conversion module, where the MPPT control module receives a control instruction and controls the dc conversion module to perform conversion so as to track the corresponding maximum output power of the photovoltaic module.
Optionally, the controller further comprises a network electricity quantity data acquisition module, and a metering ammeter for acquiring the network electricity quantity data is determined according to the network rule; the metering ammeter is arranged between the inverter and the mains supply grid; and acquiring the internet power data through the determined metering ammeter.
Optionally, the alternating current side of the variable frequency control module is connected to a variable frequency air conditioner.
Optionally, the energy management module receives the voltage processed by the boosting module, boosts the voltage to the voltage qualified by the variable frequency control module when the voltage is lower, receives the control instruction of the controller, sends the electric quantity into the variable frequency control module, and drives the variable frequency air conditioner.
Optionally, the inverter comprises a power circuit and a control circuit for controlling the power circuit, the power circuit comprises a DC/AC unit and a filtering unit, the DC/AC unit converts high-voltage direct current into mains grid alternating current, and the filtering unit is connected between the DC/AC unit and the mains grid; the control circuit collects digital and/or analog signals from the power circuit, and controls power devices in the power circuit after corresponding operation is completed.
Optionally, the control circuit includes a DSP, a signal detecting and conditioning circuit, a driving circuit, and a protection circuit, where the DSP is connected to the signal detecting and conditioning circuit, the driving circuit, and the protection circuit, respectively.
Compared with the prior art, the utility model discloses a photovoltaic variable frequency air conditioner based on residual electricity internet surfing, which comprises a variable frequency air conditioner, a photovoltaic module, a boosting module, an inverter, an energy management module, a variable frequency control module and a controller; the photovoltaic module is sequentially connected with the boosting module, the energy management module and the variable frequency control module; the inverter is connected between a commercial power grid and the boosting module; the energy management module is connected with the controller. The utility model realizes that the photovoltaic module is directly used for supplying power when the air conditioner works in daytime, and the photovoltaic module is used for generating electricity to carry out residual electricity surfing when the air conditioner does not work, so as to provide the power consumption of the air conditioner at night and the electric charge subsidy, thereby reducing the energy consumption and the electric charge of the air conditioner.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a system structure provided by the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment of the utility model discloses a photovoltaic variable frequency air conditioner based on residual electricity internet surfing, which comprises a variable frequency air conditioner as shown in fig. 1, and further comprises: the photovoltaic module 1, the boosting module 2, the inverter 6, the energy management module 3, the variable frequency control module 4 and the controller;
the photovoltaic module 1 is sequentially connected with the boosting module 2, the energy management module 3 and the variable frequency control module 4;
the inverter 6 is connected between the mains power grid 7 and the boosting module 2;
the energy management module 3 is connected to the controller.
In a specific embodiment, a rectifying filter 8, which may be an integrated rectifying filter, is also connected between the utility grid 7 and the energy management module 3.
In a specific embodiment, the boost module 2 includes an MPPT control module and a dc conversion module, where the MPPT control module receives a control instruction and controls the dc conversion module to perform conversion so as to track the maximum output power of the corresponding photovoltaic module 1;
the direct current conversion module is used for raising the low direct current voltage of the photovoltaic module into high direct current voltage;
the MPPT control module performs Maximum Power Point Tracking (MPPT) of photovoltaic output, an MPPT function, acquires output voltage and current of the photovoltaic module 1 through an MPPT algorithm, calculates power, and controls and tracks the maximum power point of the photovoltaic module output.
In a specific embodiment, the controller further comprises a network electricity quantity data acquisition module, and the metering ammeter for acquiring the network electricity quantity data is determined according to the network rule; the metering ammeter is arranged between the inverter 6 and the mains supply grid 7; and acquiring the internet power data through the determined metering ammeter.
In a specific embodiment, the ac side of the variable frequency control module 4 is connected to a variable frequency air conditioner 5.
In a specific embodiment, the energy management module 3 receives the voltage processed by the boosting module 2, boosts the voltage to the voltage qualified by the variable frequency control module 4 when the voltage is low, receives a control instruction of the controller, sends the electric quantity to the variable frequency control module 4, and drives the variable frequency air conditioner 5.
The energy management module 3 may be an EMU200A energy management unit, which is an energy management intelligent device applied to a photovoltaic subarray, and supports data acquisition, protocol conversion, energy management and edge calculation of the subarray device, and supports various networking, installation modes and electrical and environmental protection.
In a specific embodiment, the inverter 6 comprises a power circuit and a control circuit for controlling the power circuit, the power circuit comprises a DC/AC unit and a filtering unit, the DC/AC unit converts high-voltage direct current into mains grid alternating current, and the filtering unit is connected between the DC/AC unit and the mains grid 7; the control circuit collects digital and/or analog signals from the power circuit, and controls power devices in the power circuit after corresponding operation is completed.
The control circuit comprises a main control circuit taking the DSP as a core, can collect digital and analog signals from the power circuit, and can control the power device after corresponding operation so as to realize the function of DC/AC energy conversion.
The DC/AC unit converts the high-voltage direct current into the alternating current of the commercial power, and simultaneously, the output voltage is in phase with the voltage of the commercial power grid 7 and keeps a higher power factor.
A filtering unit is connected between the inverter 6 and the utility power grid 7 to prevent the inverter from interfering the utility power grid 7.
In a specific embodiment, the control circuit includes a DSP, a signal detecting and conditioning circuit, a driving circuit, and a protection circuit, and the DSP is connected to the signal detecting and conditioning circuit, the driving circuit, and the protection circuit, respectively. Wherein: the signal detection and conditioning circuit is used for completing strong and weak electric isolation, level conversion and signal amplification and filtering so as to meet the requirements of the DSP on the level range and the signal quality of each signal path; the driving circuit realizes the functions of improving the pulse driving capability and isolating; the protection circuit ensures that the output pulse signal is directly blocked from hardware when faults occur.
The working principle of the utility model is as follows: when the variable-frequency air conditioner 5 works, the electric energy of the photovoltaic module 1 is converted into high-voltage direct-current electric energy through the boosting module 2 to supply power for the variable-frequency air conditioner, and when the variable-frequency air conditioner 5 does not work, the electric energy of the photovoltaic module 1 is converted into alternating current to be supplied to the commercial power grid 7; a rectifying filter is connected between the utility power grid 7 and the energy management module 3. When the system detects that the solar energy is insufficient, the system controls the commercial power to supply power to the controller of the variable-frequency air conditioner after rectification and smooth filtration so as to ensure the normal use of the variable-frequency air conditioner. The utility model uses light energy to provide electric energy for the operation of the air conditioner, thereby reducing the operation cost of the air conditioner and the pressure brought to a power grid by the operation of the air conditioner. Meanwhile, the electric energy of the photovoltaic cell is integrated into the power grid, so that the electric energy can be supplied to other electric appliances, the light energy is fully utilized, the overall electric energy consumption of a user is reduced, and the method has great practical significance.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a photovoltaic variable frequency air conditioner based on surplus electricity online, includes variable frequency air conditioner, its characterized in that still includes: the photovoltaic power generation system comprises a photovoltaic assembly (1), a boosting module (2), an inverter (6), an energy management module (3), a variable frequency control module (4) and a controller;
the photovoltaic module (1) is sequentially connected with the boosting module (2), the energy management module (3) and the variable frequency control module (4);
the inverter (6) is connected between a mains power grid (7) and the boosting module (2);
the energy management module (3) is connected with the controller.
2. The photovoltaic variable frequency air conditioner based on residual electricity internet surfing according to claim 1 further comprising a rectifying filter (8) connected between the utility power grid (7) and the energy management module (3).
3. The photovoltaic variable frequency air conditioner based on residual electricity internet surfing according to claim 1, wherein the boosting module (2) comprises an MPPT control module and a direct current conversion module, and the MPPT control module receives a control instruction and controls the direct current conversion module to convert so as to track the maximum output power of the corresponding photovoltaic module.
4. The photovoltaic variable frequency air conditioner based on residual electricity internet surfing as claimed in claim 3, wherein the controller further comprises an internet surfing electric quantity data acquisition module, and the metering ammeter for acquiring internet surfing electric quantity data is determined according to internet surfing rules; the metering ammeter is arranged between the inverter (6) and the mains supply grid (7); and acquiring the internet power data through the determined metering ammeter.
5. The photovoltaic variable frequency air conditioner based on residual electricity internet surfing according to claim 1, wherein an alternating current side of the variable frequency control module (4) is connected to a variable frequency air conditioner (5).
6. The photovoltaic variable frequency air conditioner based on residual electricity internet surfing according to claim 1, wherein the energy management module (3) receives the voltage processed by the boosting module (2), boosts the voltage to the voltage qualified by the variable frequency control module (4) when the voltage is lower, receives a control instruction of the controller, sends the electric quantity to the variable frequency control module (4), and drives the variable frequency air conditioner (5).
7. The photovoltaic variable frequency air conditioner based on residual electricity internet surfing according to claim 6 wherein said inverter (6) comprises a power circuit and a control circuit controlling said power circuit, said power circuit comprising a DC/AC unit converting high voltage direct current into utility grid alternating current and a filter unit connected between said DC/AC unit and utility grid; the control circuit collects digital and/or analog signals from the power circuit, and controls power devices in the power circuit after corresponding operation is completed.
8. The photovoltaic variable frequency air conditioner based on residual electricity internet surfing according to claim 7 wherein the control circuit comprises a DSP, a signal detection and conditioning circuit, a driving circuit and a protection circuit, and the DSP is respectively connected with the signal detection and conditioning circuit, the driving circuit and the protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322192909.9U CN220524262U (en) | 2023-08-15 | 2023-08-15 | Photovoltaic variable frequency air conditioner based on surplus electricity internet surfing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322192909.9U CN220524262U (en) | 2023-08-15 | 2023-08-15 | Photovoltaic variable frequency air conditioner based on surplus electricity internet surfing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220524262U true CN220524262U (en) | 2024-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322192909.9U Active CN220524262U (en) | 2023-08-15 | 2023-08-15 | Photovoltaic variable frequency air conditioner based on surplus electricity internet surfing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220524262U (en) |
-
2023
- 2023-08-15 CN CN202322192909.9U patent/CN220524262U/en active Active
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