CN104596002A - Air conditioner system - Google Patents

Air conditioner system Download PDF

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Publication number
CN104596002A
CN104596002A CN201410834889.3A CN201410834889A CN104596002A CN 104596002 A CN104596002 A CN 104596002A CN 201410834889 A CN201410834889 A CN 201410834889A CN 104596002 A CN104596002 A CN 104596002A
Authority
CN
China
Prior art keywords
air
conditioning
transverter
energy
blower fan
Prior art date
Application number
CN201410834889.3A
Other languages
Chinese (zh)
Inventor
赵志刚
张雪芬
任鹏
陈颖
蒋世用
刘克勤
Original Assignee
珠海格力电器股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 珠海格力电器股份有限公司 filed Critical 珠海格力电器股份有限公司
Priority to CN201410834889.3A priority Critical patent/CN104596002A/en
Publication of CN104596002A publication Critical patent/CN104596002A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0046Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381Dispersed generators
    • H02J3/382Dispersed generators the generators exploiting renewable energy

Abstract

The invention provides an air conditioner system. The air conditioner system comprises at least one draught fan and at least one compressor, and further comprises a DC bus, at least one draught fan converter correspondingly connected with the draught fans and at least one compressor converter correspondingly connected with the compressors, wherein the draught fan converters and the compressor converters are connected with the DC bus, and the draught fan converters have an inversion state for driving the draught fans and a rectification state for recycling generated electric energy of the draught fans. According to the air conditioner system, due to the fact that the draught fan converters corresponding to the draught fans are arranged, when the air conditioner system works, the draught fan converters work in the inversion state, and the draught fans are driven to dissipate heat for the air conditioner system; when the air conditioner system stops, the draught fans are driven by wind to generate power, the draught fan converters work in the rectification state, and therefore electric energy is recycled. In other word, when the air conditioner system does not work, the draught fans become generators, and therefore the air conditioner system saves more energy.

Description

Air-conditioning system

Technical field

The present invention relates to field of air conditioning, in particular to a kind of air-conditioning system.

Background technology

More and more stronger environmental protection and energy saving demand, makes to be no matter that domestic air conditioning or the development of business air conditioner are also progressively to frequency conversion future development.At present, permanent-magnet synchronous blower fan (i.e. impeller driven by permagnetic synchronous motor blower fan) has been widely used in air-conditioner.For the characteristic of permanent magnet synchronous machine reverse power generation, often need to carry out plugging control (software control or hardware Mechanical course) to the blower fan of air-conditioner.Thus avoid the reversion of permanent-magnet synchronous blower fan in the off-premises station of air-conditioning to generate electricity the risk of the burn-down of electric motor brought, but plugging is set controls also to cause the trouble point of air-conditioner to increase; In addition, the energy that blower fan reversion generating produces does not have effective recycling, causes energy waste.

Summary of the invention

The present invention aims to provide a kind of air-conditioning system that can be more energy-conservation.

The invention provides a kind of air-conditioning system, comprise at least one Fans and at least one compressor, air-conditioning system also comprises dc bus, and at least one Fans transverter that connect corresponding at least one Fans and at least one compressor transverter that be connected corresponding at least one compressor, at least one Fans transverter is all connected with dc bus with at least one compressor transverter; Wherein, at least one Fans transverter has the inverter mode driving blower fan and the rectification state reclaiming blower fan generating electric energy.

Further, air-conditioning system also comprises novel energy, and novel energy is connected with dc bus; Wherein, novel energy is the one in photovoltaic, photo-thermal, wind energy, tide, underground heat and biomass energy.

Further, novel energy is connected with dc bus by corresponding transverter.

Further, air-conditioning system also comprises energy-storage units, and energy-storage units is connected with dc bus by corresponding transverter.

Further, air-conditioning system also comprises grid-connected transverter, and the first end of grid-connected transverter is connected with electrical network, and the second end of grid-connected transverter is connected with dc bus.

Further, air-conditioning system also comprises isolating transformer, and isolating transformer is connected between electrical network and grid-connected transverter.

Further, grid-connected transverter is four-quadrant transverter.

Further, at least one Fans transverter is four-quadrant transverter.

Further, air-conditioning system comprises a compressor and multiple stage blower fan.

Further, air-conditioning system comprises multiple compressors and a Fans.

Further, air-conditioning system comprises multiple compressors and multiple stage blower fan.

According to air-conditioning system of the present invention, by arranging the blower fan transverter corresponding with blower fan, when air-conditioning system works, blower fan transverter is operated in inverter mode, blower fan is driven to dispel the heat to air-conditioning system, when air-conditioning system stops, when blower fan is driven generating by wind, blower fan transverter is operated in rectification state, thus reclaims electric energy.Namely, when air-conditioning system does not work, blower fan becomes a generator, thus makes air-conditioning system more energy-conservation.

Accompanying drawing explanation

The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 is the first embodiment principle schematic according to air-conditioning system of the present invention;

Fig. 2 is the second embodiment principle schematic according to air-conditioning system of the present invention;

Fig. 3 is the 3rd embodiment principle schematic according to air-conditioning system of the present invention;

Fig. 4 is the 4th embodiment principle schematic according to air-conditioning system of the present invention;

Fig. 5 is the 5th embodiment principle schematic according to air-conditioning system of the present invention;

Fig. 6 is the 6th embodiment principle schematic according to air-conditioning system of the present invention;

Fig. 7 is the 7th embodiment principle schematic according to air-conditioning system of the present invention;

Fig. 8 is the 8th embodiment principle schematic according to air-conditioning system of the present invention;

Fig. 9 is the 9th embodiment principle schematic according to air-conditioning system of the present invention;

Figure 10 is the tenth embodiment principle schematic according to air-conditioning system of the present invention;

Figure 11 is the 11 embodiment principle schematic according to air-conditioning system of the present invention;

Figure 12 is the 12 embodiment principle schematic according to air-conditioning system of the present invention.

Description of reference numerals:

10, blower fan; 20, compressor; 30, blower fan transverter; 40, compressor transverter; 50, grid-connected transverter; 60, electrical network; 70, isolating transformer; 80, novel energy; 90, energy-storage units.

Detailed description of the invention

Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.

As shown in Figure 1, according to air-conditioning system first embodiment of the present invention, comprise Fans 10 and a compressor 20, air-conditioning system also comprises dc bus, and the Fans transverter 30 that connect corresponding to blower fan 10 and the compressor transverter 40 that be connected corresponding to compressor 20, blower fan transverter 30 is all connected with dc bus with compressor transverter 40, and compressor transverter 40 drives compressor variable frequency, thus implements the converting operation of air-conditioning system.In this embodiment, blower fan transverter 30 has to drive the inverter mode of blower fan 10 and reclaim blower fan 10 and to generate electricity the rectification state of electric energy.Namely when air-conditioning system works, blower fan transverter 30 is operated in inverter mode, drives blower fan 10 pairs of air-conditioning system heat radiations, and when air-conditioning system stops, when blower fan 10 is driven generating by wind, blower fan transverter 30 is operated in rectification state, thus reclaims electric energy.Namely, when air-conditioning system does not work, blower fan becomes a generator, thus makes air-conditioning system more energy-conservation.

Further, in a first embodiment, air-conditioning system also comprises grid-connected transverter 50, and the first end of grid-connected transverter 50 is connected with electrical network 60, and the second end of grid-connected transverter 50 is all connected with compressor transverter 40 and blower fan transverter 30.Namely by grid-connected transverter 50, the electric energy that blower fan 10 generates electricity can be transported on electrical network.

Preferably, in a first embodiment, air-conditioning system also comprises isolating transformer 70, and isolating transformer 70 is connected between electrical network 60 and grid-connected transverter 50, and series connection isolating transformer 70 can improve the security of air-conditioning system, also can prevent interference.Grid-connected transverter 50 is four-quadrant transverter, and blower fan transverter 30 and compressor transverter 40 can adopt four-quadrant transverter, also can adopt conventional transverter.

Preferably, shown in composition graphs 1, the air-conditioning system of the first embodiment can also comprise novel energy 80, and novel energy 80 is connected with dc bus.According to actual conditions or control ability, can arrange the transverter corresponding with novel energy 80, namely novel energy 80 is connected with dc bus by corresponding transverter.Novel energy 80 includes but not limited to the one in the clean energy resourcies such as photovoltaic, photo-thermal, wind energy, tide, underground heat and biomass energy, namely connects a kind of novel energy at dc bus place, realizes air-conditioning system energy and ensure self-sufficient as far as possible and do not ask for from civil power.

The second embodiment shown in composition graphs 2, on the basis of the first embodiment, the air-conditioning system of the second embodiment can also comprise energy-storage units 90, energy-storage units 90 is connected with dc bus by corresponding transverter, thus to energy regenerating, and power, and arrange energy-storage units 90 blower fan 10 can be generated electricity produce electric energy carry out classification recovery.

Operation principle and the control procedure of air-conditioning system of the present invention are described in conjunction with the first embodiment shown in Fig. 1 and 2 and the second embodiment, and when air-conditioning system works, the control for novel energy 80 is as follows:

If when the energy of 1 novel energy 80 mates with air conditioner load demand, novel energy can be only adopted to be that air-conditioning is powered.

If when 2 novel energy 80 energy are greater than air conditioner load demand, can control in the following way:

(1) if system does not comprise energy-storage units 90, novel energy 80 excess energy is generated electricity by way of merging two or more grid systems;

(2) if system comprise energy-storage units 90 and energy-storage units 90 electric charge deficiency need charging time, first the unnecessary electricity of novel energy 80 charges to energy-storage units 90, generates electricity by way of merging two or more grid systems when still having more than needed again;

(3) system comprises energy-storage units 90, and energy-storage units 90 also can carry out action according to the control logic linked with electrical network 60 of setting.

If when 3 novel energy 80 energy are less than air conditioner load energy:

(1) if system does not comprise energy-storage units 90, novel energy 80 insufficient section is supplemented by civil power;

(2) if system comprises energy-storage units 90, and when the electric charge of energy-storage units 90 is plentiful, first supplemented by energy-storage units 90; As still do not met air conditioning requirements, then supplemented by civil power;

(3) if system comprises energy-storage units 90, energy-storage units 90 also can carry out action according to the control logic linked with electrical network of setting.

When air-conditioning system braking or when not working, novel energy 80 energy all generates electricity by way of merging two or more grid systems, blower fan 10 electric energy that generates electricity reclaims according to following situation:

If 1 when not comprising energy-storage units 90, blower fan 10 electric energy that generates electricity is undertaken grid-connected by modes such as certain boosting measure or the staggered modulation of PAWM.

When 2, comprising energy-storage units 90, blower fan 10 electric energy that generates electricity carries out classification recovery:

(1) when blower fan inversion energy is less than a certain setting threshold value, this energy by the DC/DC transverter of energy-storage units 90 correspondence, can charge to energy-storage units 90, and the electric energy that generated electricity by blower fan 10 is reclaimed by the mode stored;

(2) when blower fan 10 generate electricity electric energy reach grid-connected conditions time, undertaken grid-connected by grid-connected transverter 50, isolating transformer 70 (this transformer can be selected to install depending on the quality of power supply), in supply net, other loads use;

(3) when blower fan 10 generate electricity electric energy close to grid-connected conditions time, being interlocked by certain boosting mode or PAWM, to carry out recovery to this energy grid-connected for modulation technique etc.

In addition, when electrical network peak load operation or need to support, when simultaneously energy-storage units more than 90 electricity is sufficient, can responds according to dispatching of power netwoks, carry out avoiding the peak hour peaking operation, for power grid security provides certain guarantee.

By above-mentioned control mode, effectively can solve air-conditioning system blower fan 10 to generate electricity the limitation that the less recovery problem of electric energy and can not carrying out when air-conditioning work generates electricity, take into account the diversity that air-conditioning system is powered, air-conditioning system is reached self-sufficiency as far as possible, not from civil power power taking; Energy-storage units 90 integrated, effectively can improve blower fan 10 and to generate electricity the electric energy rate of recovery and direct utilization rate, provide certain positive role simultaneously to electrical network.

In the third and fourth embodiment as shown in Figure 3 and Figure 4, one drag two air-conditioning system (Fans 10, two compressor 20) adopts the mode being similar to the first and second embodiments, correspondence arranges the devices such as blower fan transverter 30, grid-connected transverter 50, novel energy 80, energy-storage units 90, first novel energy 80 is adopted, and reclaim the electric energy that when air-conditioning system does not work, blower fan 10 generates electricity, thus make air-conditioning system self-sufficient as much as possible, do not consume civil power.

In as illustrated in Figures 5 and 6 the 5th and the 6th embodiment, two fans air-conditioning system (two Fans 10, compressors 20) also adopts the mode being similar to the first and second embodiments, correspondence arranges the devices such as blower fan transverter 30, grid-connected transverter 50, novel energy 80, energy-storage units 90, first novel energy 80 is adopted, and reclaim the electric energy that when air-conditioning system does not work, blower fan 10 generates electricity, thus make air-conditioning system self-sufficient as much as possible, do not consume civil power.

The multi fan air-conditioning system of the multi-split air conditioner of the as shown in FIG. 7 and 8 the 7th and the 8th embodiment or the 9th and the tenth embodiment as shown in Figures 9 and 10, and one drag many and have the mode that all can adopt in the air-conditioning system of multiple stage blower fan and be similar to the first and second embodiments in the 11 and the 12 embodiment shown in Figure 11 and 12, make air-conditioning system self-sufficient as much as possible, do not consume civil power.

It should be noted that, in the 3rd to the 12 embodiment, blower fan 10 and blower fan transverter 30 can connect one to one, and also can connect by many-one, can think that every Fans 10 arranges a Fans transverter 30, also can share a Fans transverter 30 by multiple stage blower fan 10; Similarly, compressor 20 and compressor transverter 40 can connect one to one, and also can connect by many-one, can think that every compressor 20 arranges a compressor transverter 40, also can be that multiple compressors 20 shares a compressor transverter 40.

As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:

According to air-conditioning system of the present invention, by arranging the blower fan transverter corresponding with blower fan, when air-conditioning system works, blower fan transverter is operated in inverter mode, blower fan is driven to dispel the heat to air-conditioning system, when air-conditioning system stops, when blower fan is driven generating by wind, blower fan transverter is operated in rectification state, thus reclaims electric energy.Namely, when air-conditioning system does not work, blower fan becomes a generator, thus makes air-conditioning system more energy-conservation.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (11)

1. an air-conditioning system, comprise at least one Fans (10) and at least one compressor (20), it is characterized in that, described air-conditioning system also comprises dc bus, and at least one Fans transverter (30) that connect corresponding to described at least one Fans (10) and at least one compressor transverter (40) that be connected corresponding to described at least one compressor (20), described at least one Fans transverter (30) is all connected with described dc bus with described at least one compressor transverter (40);
Wherein, described at least one Fans transverter (30) has the inverter mode driving described blower fan (10) and the rectification state reclaiming described blower fan (10) generating electric energy.
2. air-conditioning system according to claim 1, is characterized in that,
Described air-conditioning system also comprises novel energy (80), and described novel energy (80) is connected with described dc bus; Wherein, described novel energy (80) be photovoltaic, a kind of in photo-thermal, wind energy, tide, underground heat and biomass energy.
3. air-conditioning system according to claim 2, is characterized in that,
Described novel energy (80) is connected with described dc bus by corresponding transverter.
4. air-conditioning system according to claim 1, is characterized in that,
Described air-conditioning system also comprises energy-storage units (90), and described energy-storage units is connected with described dc bus by corresponding transverter.
5. air-conditioning system according to claim 1, is characterized in that,
Described air-conditioning system also comprises grid-connected transverter (50), and the first end of described grid-connected transverter (50) is connected with electrical network (60), and the second end of described grid-connected transverter (50) is connected with described dc bus.
6. air-conditioning system according to claim 5, is characterized in that,
Described air-conditioning system also comprises isolating transformer (70), and described isolating transformer (70) is connected between described electrical network (60) and described grid-connected transverter (50).
7. the air-conditioning system according to claim 5 or 6, is characterized in that,
Described grid-connected transverter (50) is four-quadrant transverter.
8. air-conditioning system according to claim 1, is characterized in that,
Described at least one Fans transverter (30) is four-quadrant transverter.
9. air-conditioning system according to claim 1, is characterized in that,
Described air-conditioning system comprises a compressor (20) and multiple stage blower fan (10).
10. air-conditioning system according to claim 1, is characterized in that, described air-conditioning system comprises multiple compressors (20) and a Fans (10).
11. air-conditioning systems according to claim 1, is characterized in that, described air-conditioning system comprises multiple compressors (20) and multiple stage blower fan (10).
CN201410834889.3A 2014-12-26 2014-12-26 Air conditioner system CN104596002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410834889.3A CN104596002A (en) 2014-12-26 2014-12-26 Air conditioner system

Applications Claiming Priority (2)

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CN201410834889.3A CN104596002A (en) 2014-12-26 2014-12-26 Air conditioner system
PCT/CN2015/087888 WO2016101644A1 (en) 2014-12-26 2015-08-24 Air conditioning system

Publications (1)

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CN104596002A true CN104596002A (en) 2015-05-06

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CN105356460A (en) * 2015-11-23 2016-02-24 珠海格力电器股份有限公司 Power supply system of multi-split air conditioner, power supply method and air conditioner
WO2016101641A1 (en) * 2014-12-26 2016-06-30 珠海格力电器股份有限公司 Air conditioning system
WO2016101642A1 (en) * 2014-12-26 2016-06-30 珠海格力电器股份有限公司 Air conditioning system
WO2016101644A1 (en) * 2014-12-26 2016-06-30 珠海格力电器股份有限公司 Air conditioning system
CN109520073A (en) * 2018-11-21 2019-03-26 珠海格力电器股份有限公司 New energy air conditioner and its progress control method

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WO2016101641A1 (en) * 2014-12-26 2016-06-30 珠海格力电器股份有限公司 Air conditioning system
WO2016101642A1 (en) * 2014-12-26 2016-06-30 珠海格力电器股份有限公司 Air conditioning system
WO2016101644A1 (en) * 2014-12-26 2016-06-30 珠海格力电器股份有限公司 Air conditioning system
CN105356460A (en) * 2015-11-23 2016-02-24 珠海格力电器股份有限公司 Power supply system of multi-split air conditioner, power supply method and air conditioner
CN109520073A (en) * 2018-11-21 2019-03-26 珠海格力电器股份有限公司 New energy air conditioner and its progress control method

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