CN102420532A - Wind energy variable-frequency air conditioning system - Google Patents
Wind energy variable-frequency air conditioning system Download PDFInfo
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- CN102420532A CN102420532A CN2011102199196A CN201110219919A CN102420532A CN 102420532 A CN102420532 A CN 102420532A CN 2011102199196 A CN2011102199196 A CN 2011102199196A CN 201110219919 A CN201110219919 A CN 201110219919A CN 102420532 A CN102420532 A CN 102420532A
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Abstract
The invention discloses a wind energy variable-frequency air conditioning system, comprising a power circuit and a control circuit. Compared with the prior art, the wind energy variable-frequency air conditioning system provided by the invention can be used for realizing the complementation of the electric power from the wind energy power generation and the electric power from a power grid so as to corporately drive an air conditioner to operate by means of the electric power from the wind energy power generation and the electric power from the power grid; and simultaneously, when the air conditioner is in idle, or the electric power produced by the wind energy power generation is surplus, the electric power can be applied to other household appliances through a feedback power grid in the invention.
Description
Technical field
The present invention relates to the air conditioner field, exactly be meant a kind of wind energy frequency-conversion air-conditioning system.
Background technology
Wind energy is as a kind of regenerative resource of cleaning, will become 21 century one of the most potential green energy resource.Wind energy with its clean environment firendly, contain advantage such as abundant and just progressively obtained development and utilization.Along with the miniaturization of wind energy generating plant and the universalness of civil area, the Application Research of wind energy in household electrical appliance begun to come true.
Air conditioner is first rich and influential family of electricity consumption in summer, on average accounts for 25% of various places total electricity consumption, and in Beijing, big cities such as Shanghai, Guangzhou, the power consumption of air-conditioning is half the near total electricity consumption.Green energy resource air conditioners such as research and development wind energy have wide promotion and application prospect, can reduce exhaust gas discharging such as sulfur dioxide in the world, effectively protect environment, reduce and pollute, and improve people's the general level of the health; Greatly reduce air conditioner electrical network is relied on, alleviate the not enough predicament of China's electricity consumption in summer.Wind energy is one of industry of at present the most ripe, on the largest scaleization of whole world technology aspect utilization of new energy resources and industrialized development, also will obtain national policy and help, and be the channeling direction of following consumption.
At present, in the research and development field of green energy resource air conditioner, the research and development of the electric power of wind power generation and pilot electric power complementary type air conditioner is still so far and is in space state.
Summary of the invention
To above-mentioned defective; The technical problem that the present invention solves is to provide a kind of wind energy frequency-conversion air-conditioning system, and the electric power of wind power generation and grid power are complementary, with the electric power and the operation of grid power driven in common air conditioner of wind power generation; Simultaneously; When the electric power of air conditioner free time or wind power generation has residue, can pass through feedback grid of the present invention again, be used for other household electrical appliance of family.
In order to solve above technical problem, wind energy frequency-conversion air-conditioning system provided by the invention comprises power circuit and control circuit, wherein:
Said power circuit comprises wind electricity generating system, AC/DC unit, DC/DC unit, DCLink unit and DC/AC unit; Said AC/DC unit is used for the low-voltage AC of said wind electricity generating system output is changed to low-voltage DC; Said DC/DC unit is used for the low-voltage DC of said AC/DC unit output is changed to high voltage direct current; Said DCLink unit is used to sample and cushion the high voltage direct current that said DC/DC unit is exported; Said DC/AC unit is used for converting said high voltage direct current into grid alternating current, simultaneously output voltage and electric network voltage phase or higher power factor;
Said control circuit comprises MPPT unit, intermediate voltage detecting unit, IGBT driver element, output current and synchronized detecting unit, main control circuit unit; Said MPPT unit is used to gather the peak power output of the low-voltage DC of exporting said AC/DC unit, and feeds back to said main control circuit unit; Said intermediate voltage detecting unit, the high voltage direct current that the said DC/DC unit of DCLink unit sampling is exported feeds back to said main control circuit unit; Said IGBT driver element becomes dc inverter the alternating current of frequency adjustable; Said output current and synchronized detecting unit are used for output current and synchronized and detect; Said main control circuit unit is accomplished the control to air conditioner after from power circuit, gathering numeral and analog signal and carrying out corresponding computing, to realize the function of DC/DC and the energy conversion of DC/AC two-stage.
More excellent ground, said power circuit also comprises the filter circuit unit, said filter circuit unit is arranged on after the said DC/AC unit, and electrical network connects.
More excellent ground, said main control circuit unit is provided with a dsp chip, the shared described dsp chip of the power converter of wind electricity generating system and the DC frequency conversion controller of air conditioner.
More excellent ground, said power circuit comprises solar energy photovoltaic generator, it is parallelly connected with said wind electricity generating system.
Compared with prior art; Wind energy frequency-conversion air-conditioning system provided by the invention, the electric power of wind power generation and grid power are complementary, with the electric power and the operation of grid power driven in common air conditioner of wind power generation; Simultaneously; When the electric power of air conditioner free time or wind power generation has residue, can pass through feedback grid of the present invention again, be used for other household electrical appliance of family.
Description of drawings
Fig. 1 is the structural representation of wind energy frequency-conversion air-conditioning system among the present invention;
Fig. 2 is the control block diagram of wind energy frequency-conversion air-conditioning system among the present invention.
Embodiment
For those skilled in the art can understand technical scheme provided by the present invention better, set forth below in conjunction with specific embodiment.
See also Fig. 1 and Fig. 2, Fig. 1 is the structural representation of wind energy frequency-conversion air-conditioning system among the present invention; Fig. 2 is the control block diagram of wind energy frequency-conversion air-conditioning system among the present invention.
Wind energy frequency-conversion air-conditioning system provided by the invention is made up of wind electricity generating system 1, convertible frequency air-conditioner air conditioner indoor machine C and frequency-change air conditioner outdoor machine B.Wind electricity generating system 1 is installed in the top of building; Wind electricity generating system 1 generating output 24V alternating current; Insert the controller be built in air-conditioner outdoor unit B through stube cable line A,, be pressed in load end with the commutated direct current of electrical network through after the rectifying and wave-filtering of controller and the control of boosting; Carry out parallel connection with " collimation stream is incorporated into the power networks " mode; Make very smooth-going incision that power network current can be seamless or withdraw from supplementary power, guarantee the even running of transducer air conditioning 11, realize the electric power and the parallelly connected driven in common transducer air conditioning 11 of electrical network of wind power generation.
See also Fig. 2, wind energy frequency-conversion air-conditioning system provided by the invention comprises power circuit and control circuit, and power circuit comprises wind electricity generating system 1, AC/DC unit 2, DC/DC unit 3, DCLink unit 4 and DC/AC unit 6; Control circuit comprises MPPT unit 12, intermediate voltage detecting unit 3, IGBT driver element 7, output current and synchronized detecting unit 9, main control circuit unit 10.
AC/DC unit 2 is used for the low-voltage AC of wind electricity generating system 1 output is changed to low-voltage DC, regulates the working point of control wind electricity generating system 1 simultaneously, dynamically pursues the maximum power point of wind electricity generating system 1.
DC/DC unit 3 is used for the low-voltage DC of AC/DC unit 2 outputs is changed to high voltage direct current.In the DC/DC transfer process; Through broad power band high conversion efficiency control consumption reduction; At utmost avoid the energy loss of transfer process, realized that the DC/DC conversion peak efficiency under the low-voltage below the 48V reaches more than 92%, also reach more than 86% under the low-power.
DC/AC unit 6 is used for converting high voltage direct current into grid alternating current, simultaneously output voltage and electric network voltage phase or higher power factor.
Power circuit also comprises filter circuit unit 8, and filter circuit unit 8 is arranged on after the DC/AC unit 6, and electrical network 13 connections, prevents that inverter from producing interference to electrical network 13.
Main control circuit unit 10; Accomplish control after from power circuit, gathering numeral and analog signal and carrying out corresponding computing to air conditioner; To realize the function of DC/DC and the energy conversion of DC/AC two-stage; Main control circuit unit 10 is provided with a dsp chip, the power converter of wind electricity generating system 1 and the shared dsp chip of the DC frequency conversion controller of air conditioner.High voltage direct current directly inserts wind energy transducer air conditioning 11 on the one hand and handles 11 runnings of rear drive convertible frequency air-conditioner through its built-in inverter; On the other hand, the wind energy transducer air conditioning is during 11 free time, and this high voltage direct current is handled the electrical network of back feedback family ammeter rear end through combining inverter, supplies other household electrical appliance use of user.
In addition, be provided with diode between DC boosting module and the rectifier filter,, guarantee that automatically frequency-conversion air-conditioning system preferentially uses the electric power of wind power generation through the voltage of its output dc voltage of combining inverter module controls after a little more than the electrical network rectification.
Intermediate voltage detecting unit 5, the high voltage direct current that the DC/DC unit 3 of DCLink unit 4 samplings is exported feeds back to main control circuit unit 10.
Compared with prior art; Wind energy frequency-conversion air-conditioning system provided by the invention, the electric power of wind power generation and grid power are complementary, with the electric power and the operation of grid power driven in common air conditioner of wind power generation; Simultaneously; When the electric power of air conditioner free time or wind power generation has residue, can pass through feedback grid of the present invention again, be used for other household electrical appliance of family.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (4)
1. a wind energy frequency-conversion air-conditioning system is characterized in that, comprises power circuit and control circuit:
Said power circuit comprises wind electricity generating system, AC/DC unit, DC/DC unit, DCLink unit and DC/AC unit; Said AC/DC unit is used for the low-voltage AC of said wind electricity generating system output is changed to low-voltage DC; Said DC/DC unit is used for the low-voltage DC of said AC/DC unit output is changed to high voltage direct current; Said DCLink unit is used to sample and cushion the high voltage direct current that said DC/DC unit is exported; Said DC/AC unit is used for converting said high voltage direct current into grid alternating current, simultaneously output voltage and electric network voltage phase or higher power factor;
Said control circuit comprises MPPT unit, intermediate voltage detecting unit, IGBT driver element, output current and synchronized detecting unit, main control circuit unit; Said MPPT unit is used to gather the peak power output of the low-voltage DC of exporting said AC/DC unit, and feeds back to said main control circuit unit; Said intermediate voltage detecting unit, the high voltage direct current that the said DC/DC unit of DCLink unit sampling is exported feeds back to said main control circuit unit; Said IGBT driver element becomes dc inverter the alternating current of frequency adjustable; Said output current and synchronized detecting unit are used for output current and synchronized and detect; Said main control circuit unit is accomplished the control to air conditioner after from power circuit, gathering numeral and analog signal and carrying out corresponding computing, to realize the function of DC/DC and the energy conversion of DC/AC two-stage.
2. wind energy frequency-conversion air-conditioning system according to claim 1 is characterized in that said power circuit also comprises the filter circuit unit, and said filter circuit unit is arranged on after the said DC/AC unit, and electrical network connects.
3. wind energy frequency-conversion air-conditioning system according to claim 1 is characterized in that, said main control circuit unit is provided with a dsp chip, the shared described dsp chip of the power converter of wind electricity generating system and the DC frequency conversion controller of air conditioner.
4. wind energy frequency-conversion air-conditioning system according to claim 1 is characterized in that said power circuit comprises solar energy photovoltaic generator, and it is parallelly connected with said wind electricity generating system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102199196A CN102420532A (en) | 2011-08-02 | 2011-08-02 | Wind energy variable-frequency air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102199196A CN102420532A (en) | 2011-08-02 | 2011-08-02 | Wind energy variable-frequency air conditioning system |
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| CN102420532A true CN102420532A (en) | 2012-04-18 |
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| CN2011102199196A Pending CN102420532A (en) | 2011-08-02 | 2011-08-02 | Wind energy variable-frequency air conditioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713176A (en) * | 2013-12-11 | 2015-06-17 | 珠海格力电器股份有限公司 | Photovoltaic air conditioning system and control method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101493243A (en) * | 2008-01-23 | 2009-07-29 | 广东志高空调有限公司 | Multiple energy resource air conditioning equipment and multiple energy resource power control unit |
| CN102005975A (en) * | 2010-11-09 | 2011-04-06 | 广东美的电器股份有限公司 | Solar air conditioner and solar air-conditioning system consisting of solar air conditioner |
-
2011
- 2011-08-02 CN CN2011102199196A patent/CN102420532A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101493243A (en) * | 2008-01-23 | 2009-07-29 | 广东志高空调有限公司 | Multiple energy resource air conditioning equipment and multiple energy resource power control unit |
| CN102005975A (en) * | 2010-11-09 | 2011-04-06 | 广东美的电器股份有限公司 | Solar air conditioner and solar air-conditioning system consisting of solar air conditioner |
Non-Patent Citations (1)
| Title |
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| 雷家宁: "三相光伏并网发电系统研究", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713176A (en) * | 2013-12-11 | 2015-06-17 | 珠海格力电器股份有限公司 | Photovoltaic air conditioning system and control method thereof |
| CN104713176B (en) * | 2013-12-11 | 2018-05-22 | 珠海格力电器股份有限公司 | Photovoltaic air conditioning system and control method thereof |
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Application publication date: 20120418 |