WO2016119450A1 - 空调系统 - Google Patents

空调系统 Download PDF

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Publication number
WO2016119450A1
WO2016119450A1 PCT/CN2015/087845 CN2015087845W WO2016119450A1 WO 2016119450 A1 WO2016119450 A1 WO 2016119450A1 CN 2015087845 W CN2015087845 W CN 2015087845W WO 2016119450 A1 WO2016119450 A1 WO 2016119450A1
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Prior art keywords
compressor
inverter
air conditioning
fan
conditioning system
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Ceased
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PCT/CN2015/087845
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English (en)
French (fr)
Inventor
赵志刚
袁金荣
张雪芬
蒋世用
刘克勤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Publication of WO2016119450A1 publication Critical patent/WO2016119450A1/zh
Anticipated expiration legal-status Critical
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring

Definitions

  • the present invention relates to the field of air conditioning, and in particular to an air conditioning system.
  • the present invention aims to provide an air conditioning system that can be more energy efficient.
  • the invention provides an air conditioning system comprising at least one fan and at least one compressor.
  • the air conditioning system further comprises a DC bus and at least one main compressor inverter connected to the DC bus, and each main press is changed.
  • the flow device is drivingly coupled to at least one of the at least one fan and at least one of the at least one compressor; wherein the main compressor inverter has an inverter state for driving the compressor and the fan and recovering the power generated by the fan. Rectified state.
  • the air conditioning system further includes at least one auxiliary compressor inverter, the input end of the auxiliary compressor inverter is connected to the DC bus, and the output end of the auxiliary compressor inverter is drivingly connected with the compressor.
  • the air conditioning system further includes a grid-connected inverter, the first end of the grid-connected inverter is connected to the grid, and the second end of the grid-connected converter is connected to the DC bus.
  • the air conditioning system further includes an isolation transformer, and the isolation transformer is connected in series between the power grid and the grid-connected inverter.
  • the grid-connected inverter is a four-quadrant inverter.
  • main compressor inverter and/or the auxiliary compressor inverter are four-quadrant inverters.
  • the air conditioning system further includes a battery, and the battery is connected to the DC bus.
  • the air conditioning system includes a compressor and a plurality of fans, and the compressor and the plurality of fans are drivingly coupled to a main compressor inverter.
  • the air conditioning system includes a plurality of compressors and a fan, one of the plurality of compressors and one of the fans is drivingly connected to the main compressor inverter; the other compressors and the auxiliary compressors of the plurality of compressors The inverters are driven one by one.
  • the air conditioning system includes a plurality of compressors and a plurality of fans, and each of the main compressor inverters is driven to be connected to a compressor and a fan.
  • the air conditioning system of the present invention by simultaneously driving each of the main compressor inverters with at least one fan and at least one compressor, the same arrangement inside the air conditioning system is effectively reduced, and the cost is reduced.
  • the main compressor inverter works in the inverter state, driving the compressor and the fan to work;
  • the main compressor converter works when the fan is driven by the wind to generate electricity. In the rectified state, thereby recovering electrical energy. That is, when the air conditioning system is not working, the fan becomes a generator, which makes the air conditioning system more energy efficient.
  • Figure 1 is a schematic view showing the principle of a first embodiment of an air conditioning system according to the present invention
  • Figure 2 is a schematic view showing the principle of a second embodiment of an air conditioning system according to the present invention.
  • Figure 3 is a schematic view showing the principle of a third embodiment of an air conditioning system according to the present invention.
  • Figure 4 is a schematic view showing the principle of a fourth embodiment of an air conditioning system according to the present invention.
  • Figure 5 is a schematic view showing the principle of a fifth embodiment of an air conditioning system according to the present invention.
  • Figure 6 is a schematic illustration of a sixth embodiment of an air conditioning system in accordance with the present invention.
  • a first embodiment of an air conditioning system includes a fan 10 and a compressor 20.
  • the air conditioning system also includes a DC bus and a main compressor inverter 30 connected to the DC bus.
  • the main press inverter 30 is drivingly coupled to the blower 10 and the compressor 20; wherein the main press inverter 30 has an inverter state for driving the compressor 20 and the blower 10 and a rectifying state for recovering the electric power generated by the blower 10.
  • the main compressor inverter 30 by causing the main compressor inverter 30 to simultaneously drive the fan 10 and the compressor 20, a fan converter and a corresponding drive mechanism are reduced compared to the prior art, which reduces the cost.
  • the compressor 20 and the fan 10 are driven to operate; when the air conditioner system is stopped, in the case where the fan 10 is driven by the wind to generate electricity, the main pressure
  • the machine inverter 30 operates in a rectified state to recover electrical energy. That is, when the air conditioning system is not working, the fan becomes a generator, which makes the air conditioning system more energy efficient.
  • the main compressor inverter 30 simultaneously drives the fan 10 and the compressor 20, it is possible to simultaneously raise and lower the frequency and perform work matching.
  • the fan 10 and the compressor 20 can synchronously increase the rotational speed, and when the cooling capacity is large, the compressor performs a large work, the condenser heat exchange amount is large, and the fan speed is simultaneously High and large heat dissipation.
  • the fan 10 and the compressor 20 can synchronously reduce the rotational speed, which is smaller than the cooling capacity, the compressor has small work, the heat exchange amount of the condenser is small, and the fan speed is low and the heat dissipation is small.
  • the common main compressor inverter 30 When the air conditioning system is idle, if the wind blows the fan 10, the common main compressor inverter 30 is used for reverse rectification to obtain direct current. In a harsh environment, due to the high power level of the main compressor inverter 30, The possibility of damage to power generation is small.
  • the air conditioning system can also be provided with a battery, which is connected to the main compressor inverter 30 (or DC bus). During the power generation of the fan 10, the electric energy is stored. When the fan is working normally, the battery supplies a part of the electric energy supply fan 10 jobs.
  • the air conditioning system may further include a grid-connected inverter 50.
  • the first end of the grid-connected inverter 50 is connected to the grid 60, and the second end of the grid-connected inverter 50 is connected to the DC bus. That is, the wind turbine 10 can generate electricity through the storage of equipment such as a battery, or through the grid-connected inverter 50 to supply other loads to the grid.
  • the grid-connected inverter 50 and the main compressor inverter 30 are four-quadrant inverters.
  • the air conditioning system further includes an isolation transformer 70, the isolation transformer 70 is connected in series to the power grid Between the 60 and the grid-connected inverter 50, the series isolation transformer 70 can improve the safety of the air conditioning system and also prevent interference.
  • the air conditioning system of the first embodiment is opposite to the ordinary inverter air conditioner, and the fan converter and its drive controller are cancelled, and the fan 10 is directly connected to the main compressor inverter 30, and the motor pole number of the fan 10 is selected or decelerated.
  • the use of gears controls the speed of the fan 10, matching the amount of heat required by the air conditioner and the amount of heat exchange provided by the fan 10.
  • the main compressor inverter 30 operates in the DC-AC inverter state, and the fan 10 rotates to dissipate heat from the external unit of the air conditioning system. At this time, the pole number of the fan is used, and the compressor 20 is matched.
  • Fan 10 speed if the compressor 20 is loaded up, the air conditioning system needs a large amount of heat dissipation, the fan 10 speed is also increased accordingly, and the heat exchange amount is also increased; if the compressor 20 is down-converted, the air-conditioning system needs heat dissipation. The amount is small, the fan 10 speed is also reduced accordingly, and the heat exchange amount is also reduced. It can also be controlled dynamically by the large and small gears, so that the speed of the compressor 20 and the fan 10 can meet the requirements of the heat dissipation required by the air conditioner and the heat exchange amount provided by the fan.
  • the fan When the air conditioning system is not working, the fan combines with the main compressor inverter 30 to form a wind power generator. When the wind impeller rotates, the main compressor inverter 30 operates in an AC-DC rectification state to generate electricity. Power generation can be connected to the grid through the grid-connected inverter 50, or it can be used by other DC-DC devices to store and supply DC power to the battery. Thereby achieving the purpose of wind energy recycling.
  • the main compressor inverter 30 of the borrowed compressor 20 has a larger power capacity than the conventional fan converter, it can generate electricity reliably under severe weather and high wind speed.
  • basic open loop control can be used to realize the operation of dual motors; compressors and fans with motor parameters such as inductance and resistance can also be used.
  • the frequency conversion control since the power of the fan 10 is relatively small compared to the power of the compressor 20 (the power of the fan 10 is generally several tens of hundreds of watts, the compressor power is generally several tens of kilowatts), and in the closed loop adjustment, only the compressor 20 is fed back.
  • the current parameter is used as a decoupling correlation algorithm, and the fan current parameter is considered to be added as a loss, so that the system operates stably.
  • the fan 10 is two, that is, one main compressor inverter 30 simultaneously drives one compressor 20 and two.
  • the fan 10 can reduce the cost of the fan converter and reduce the cost.
  • the selection of the number of poles of the motor of the blower 10 or the use of the reduction gear can be used to achieve the matching of the rotational speeds of the compressor 20 and the blower 10. It is also possible to set up the grid-connected inverter 50 and the like to recover the electric energy generated by the fan, and to generate the grid by the wind turbine, so that the air-conditioning system has the function of generating wind power.
  • the plurality of fans 10 are multiple, that is, one main compressor inverter 30 simultaneously drives one compressor 20 and more.
  • the fan 10 can reduce the cost of the fan converter and reduce the cost.
  • Other controls are similar to the first embodiment and the second embodiment, and are not described herein again.
  • the main press inverter 30, the blower 10 and the compressor 20 are plural, and each main press inverter 30 and one The compressor 20 is driven to be connected to a fan 10.
  • the manner in which each of the main compressor inverters 30 controls the compressor 20 and the fan 10 is similar to that of the first embodiment, and will not be described herein.
  • an auxiliary compressor inverter 40 an input terminal of the auxiliary compressor inverter 40, is further provided as compared with the first to fourth embodiments.
  • the output of the auxiliary compressor inverter 40 is drivingly coupled to the compressor 20. That is, when the number of the compressors 20 is larger than the number of the fans 10, the excess compressor 20 can be separately driven by providing the auxiliary compressor inverter 40.
  • the auxiliary compressor inverter 40 is a four-quadrant inverter.
  • two compressors 20 and one fan 10 are included, one compressor 20 and the fan 10 are simultaneously driven by the main compressor inverter 30, and the other compressor 20 is driven by an auxiliary press.
  • the inverter 40 is driven separately.
  • the driving control mode of the main compressor inverter 30 is similar to that of the first embodiment and will not be described again.
  • a plurality of compressors 20 and a fan 10 one of the plurality of compressors 20, and the fan 10 and the main compressor inverter are included.
  • 30 drive connection; the other compressors of the plurality of compressors 20 are driven in one-to-one correspondence with the auxiliary compressor inverters 40.
  • the control manner is similar to that of the fifth embodiment, and details are not described herein again.
  • the air conditioning system of the present invention by simultaneously driving each of the main compressor inverters to drive at least one fan and at least one compressor, the same arrangement inside the air conditioning system is effectively reduced, and the cost is reduced;
  • the main compressor inverter works in the inverter state to drive the compressor and the fan to work;
  • the main compressor inverter works in the rectification state when the fan is driven by the wind to generate electricity.
  • the fan becomes a generator, which makes the air conditioning system more energy efficient.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

一种空调系统，包括至少一台风机（10）和至少一台压缩机（20），还包括直流母线和连接在直流母线上的至少一台主压机换流器（30），每台主压机换流器（30）与至少一台风机（10）中的至少一台和至少一台压缩机（20）中的至少一台驱动连接；其中，主压机换流器（30）具有驱动压缩机（20）和风机（10）的逆变状态和回收风机（10）发电电能的整流状态。该空调系统通过使每台主压机换流器（30）同时驱动至少一台风机（10）和至少一台压缩机（20），有效地减少了系统内部相同的设置，降低了成本；另外，在空调系统工作时，主压机换流器（30）工作在逆变状态，驱动压缩机（20）和风机（10）对空调系统散热；当空调系统停止时，在风机（10）被风驱动发电的情况下，主压机换流器（30）工作在整流状态，从而回收电能。

Description

空调系统 技术领域
本发明涉及空调领域，具体而言，涉及一种空调系统。
背景技术
创造绿色产品，成为企业立足发展的需求。而在空调领域，也是迎合“绿色”逐渐走向变频时代。目前，由于永磁同步电机结构坚固、体积小、高气隙磁通密度、高功率、高转动惯量比等诸多优点，被广泛应用在压缩机/风机上。现有技术中，由于压缩机和风机转速、功率及负载性质的不同，所以需要使用不同的变流器、不同的驱动控制器，风机散热功率的大小还需另外编程匹配。现有技术中采用的方法，虽然减少了两个负载的交集成为独立的控制部分，使其不会因一个故障信号都停机，但增加了空调系统中相同的设备，提高了成本；同时在空调系统闲置时，风力使风机转动所产生的能量没有进行有效回收利用，造成可用资源的浪费。
发明内容
本发明旨在提供一种能够更节能的空调系统。
本发明提供了一种空调系统，包括至少一台风机、至少一台压缩机，空调系统还包括直流母线和连接在直流母线上的至少一台主压机换流器，每台主压机换流器与至少一台风机中的至少一台和至少一台压缩机中的至少一台驱动连接；其中，主压机换流器具有驱动压缩机和风机的逆变状态和回收风机发电电能的整流状态。
进一步地，空调系统还包括至少一台辅压机换流器，辅压机换流器的输入端连接在直流母线上，辅压机换流器的输出端与压缩机对应驱动连接。
进一步地，空调系统还包括并网换流器，并网换流器的第一端与电网连接，并网换流器的第二端与直流母线连接。
进一步地，空调系统还包括隔离变压器，隔离变压器串联在电网与并网换流器之间。
进一步地，并网换流器为四象限换流器。
进一步地，主压机换流器和/或辅压机换流器为四象限换流器。
进一步地，空调系统还包括蓄电池，蓄电池与直流母线连接。
进一步地，空调系统包括一台压缩机和多台风机，压缩机和多台风机与一台主压机换流器驱动连接。
进一步地，空调系统包括多台压缩机和一台风机，多台压缩机中的一台和一台风机与主压机换流器驱动连接；多台压缩机中的其他压缩机与辅压机换流器一一对应驱动连接。
进一步地，空调系统包括多台压缩机和多台风机，每台主压机换流器与一台压缩机和一台风机驱动连接。
根据本发明的空调系统，通过使每台主压机换流器同时驱动至少一台风机和至少一台压缩机，从而有效地减少了的空调系统内部相同的设置，降低了成本。另外，在空调系统工作时，主压机换流器工作在逆变状态，驱动压缩机和风机工作；当空调系统停止时，在风机被风驱动发电的情况下，主压机换流器工作在整流状态，从而回收电能。即空调系统不工作时，风机成为一台发电机，从而使得空调系统更节能。
附图说明
构成本申请的一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明的空调系统的第一实施例原理示意图；
图2是根据本发明的空调系统的第二实施例原理示意图；
图3是根据本发明的空调系统的第三实施例原理示意图；
图4是根据本发明的空调系统的第四实施例原理示意图；
图5是根据本发明的空调系统的第五实施例原理示意图；
图6是根据本发明的空调系统的第六实施例原理示意图。
附图标记说明：
10、风机；20、压缩机；30、主压机换流器；40、辅压机换流器；50、并网换流器；60、电网；70、隔离变压器。
具体实施方式
下面将参考附图并结合实施例来详细说明本发明。
如图1所示，根据本发明的空调系统第一实施例，包括一台风机10和一台压缩机20。空调系统还包括直流母线和连接在直流母线上的一台主压机换流器30。主压机换流器30与风机10和压缩机20驱动连接；其中，主压机换流器30具有驱动压缩机20和风机10的逆变状态和回收风机10发电电能的整流状态。
在第一实施例中，通过使主压机换流器30同时驱动风机10和压缩机20，相比现有技术，减少了一台风机换流器及相应的驱动机构，降低了成本。另外，在空调系统工作时，主压机换流器30工作在逆变状态时，驱动压缩机20和风机10工作；当空调系统停止时，在风机10被风驱动发电的情况下，主压机换流器30工作在整流状态，从而回收电能。即空调系统不工作时，风机成为一台发电机，从而使得空调系统更节能。
具体地，由于主压机换流器30同时驱动风机10和压缩机20，从而可以同时升降频，做功匹配。以空调工作在制冷状态下为例，在升频过程中，风机10和压缩机20能同步增大转速，较符合制冷量大时，压缩机做功大、冷凝器热交换量大，同时风机转速高、散热量大。相应地，在降频时，风机10和压缩机20能同步减小转速，较符合制冷量小时，压缩机做功小、冷凝器热交换量小，同时风机转速低、散热量小。
当空调系统闲置时，如有风使风机10转动，则使用该共用的主压机换流器30进行反向整流得到直流电，在恶劣环境下，由于主压机换流器30功率等级高，造成发电损坏的可能性小。
优选地，空调系统还可以设置蓄电池，蓄电池与主压机换流器30(或者直流母线)连接，在风机10发电过程中，将电能存储，在风机正常工作时，蓄电池提供一部分电能供风机10工作。
进一步地，空调系统还可以包括并网换流器50，并网换流器50的第一端与电网60连接，并网换流器50的第二端与直流母线连接。即风机10发电即可以通过蓄电池等设备中存储、亦可通过并网换流器50进行并网供给电网其他负载。一般地，并网换流器50和主压机换流器30为四象限换流器。
优选地，空调系统还包括隔离变压器70，隔离变压器70串联在电网 60与并网换流器50之间，串联隔离变压器70能够提高空调系统的安全性，也能够防止干扰。
结合图1来说明本发明的空调系统的工作原理。第一实施例的空调系统相对普通变频空调，撤销风机变流器及其驱动控制器，将风机10直接接至主压机换流器30上，通过对风机10电机极对数的选取或减速齿轮的使用，控制风机10的转速，匹配空调所需散热量与风机10提供换热量。在空调系统工作时，主压机换流器30工作在DC-AC逆变状态，风机10转动对空调系统外机进行散热，此时，使用定比的风机极对数，匹配压缩机20、风机10转速，若压缩机20升频加载时，空调系统所需散热量大，风机10转速也相应提高，换热量也加大；若压缩机20降频减载时，空调系统所需散热量小，风机10转速也相应降低，换热量也减少。也可以通过大小齿轮机械动态控制，使压缩机20、风机10转速符合空调所需散热量与风机提供换热量的要求。
在空调系统不工作时，风机结合主压机换流器30设备形成风力发电机，在风叶轮转动时，主压机换流器30工作在AC-DC整流状态，从而发电。发电可以通过并网换流器50将电能并网，也可以通过其他DC-DC设备对电池储能、供给直流的其他设备使用。从而达到风能回收利用的目的。
由于借用的压缩机20的主压机换流器30，较之现有的风机变流器功率容量大，所以在恶劣的天气高风速下，也能可靠的发电。双电机控制过程中，可使用基本的开环控制，实现双电机的运行；亦可使用电机参数如感量、阻值等等比的压缩机、风机。在变频控制时，由于风机10功率相对压缩机20功率较小(风机10的功率一般为几十只几百瓦，压缩机功率一般为几十千瓦)，在闭环调节时，仅反馈压缩机20电流参数做解耦相关算法，考虑将风机电流参数当耗损加入，从而使系统稳定运行。
如图2所示的第二实施例中，相比第一实施例，第二实施例中，风机10为两台，即一台主压机换流器30同时驱动一台压缩机20和两台风机10，从而实现减少风机换流器，降低成本的作用。同时，类似于第一实施例，可以对风机10电机极对数的选取或减速齿轮的使用，实现压缩机20和风机10的转速匹配。也可以对应设置并网换流器50等装置，回收风机发电的电能，并将风机发电并网，从而使得空调系统具有带风力发电功能。
如图3所示的第三实施例中，相比第二实施例，第三实施例中，风机10为多台，即一台主压机换流器30同时驱动一台压缩机20和多台风机10，从而实现减少风机换流器，降低成本的作用。其他控制类似于第一实施例和第二实施例，在此不再赘述。
如图4所示的第四实施例中，相比第一实施例，主压机换流器30、风机10和压缩机20都为多台，并且每台主压机换流器30与一台压缩机20和一台风机10驱动连接。每台主压机换流器30控制压缩机20和风机10的方式与第一实施例类似，在此不再赘述。
如图5所示的第五实施例中，相比第一至第四实施例，在第五实施例中，还设置了辅压机换流器40，辅压机换流器40的输入端连接在直流母线上，辅压机换流器40的输出端与压缩机20对应驱动连接。即当压缩机20的数量大于风机10的数量时，可以通过设置辅压机换流器40对多余的压缩机20单独驱动。优选地，辅压机换流器40为四象限换流器。
在第五实施例中，包括两台压缩机20和一台风机10，一台压缩机20和风机10由主压机换流器30同时驱动，另外一台压缩机20由一台辅压机换流器40单独驱动。主压机换流器30的驱动控制方式与第一实施例类似，不再赘述。
如图6所示的第六实施例中，相比第五实施例，包括多台压缩机20和一台风机10，多台压缩机20中的一台和风机10与主压机换流器30驱动连接；多台压缩机20中的其他压缩机与辅压机换流器40一一对应驱动连接。其控制方式类似于第五实施例，在此不再赘述。
从以上的描述中，可以看出，本发明上述的实施例实现了如下技术效果：
根据本发明的空调系统，通过使每台主压机换流器同时驱动至少一台风机和至少一台压缩机，从而有效地减少了的空调系统内部相同的设置，降低了成本；另外，在空调系统工作时，主压机换流器工作在逆变状态，驱动压缩机和风机工作；当空调系统停止时，在风机被风驱动发电的情况下，主压机换流器工作在整流状态，从而回收电能。即空调系统不工作时，风机成为一台发电机，从而使得空调系统更节能。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于 本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种空调系统，包括至少一台风机(10)、至少一台压缩机(20)，其特征在于，所述空调系统还包括直流母线和连接在所述直流母线上的至少一台主压机换流器(30)，每台所述主压机换流器(30)与所述至少一台风机(10)中的至少一台和所述至少一台压缩机(20)中的至少一台驱动连接；
    其中，所述主压机换流器(30)具有驱动所述压缩机(20)和所述风机(10)的逆变状态和回收所述风机(10)发电电能的整流状态。
  2. 根据权利要求1所述的空调系统，其特征在于，
    所述空调系统还包括至少一台辅压机换流器(40)，所述辅压机换流器(40)的输入端连接在所述直流母线上，所述辅压机换流器(40)的输出端与所述压缩机(20)对应驱动连接。
  3. 根据权利要求1所述的空调系统，其特征在于，
    所述空调系统还包括并网换流器(50)，所述并网换流器(50)的第一端与电网(60)连接，所述并网换流器(50)的第二端与所述直流母线连接。
  4. 根据权利要求3所述的空调系统，其特征在于，
    所述空调系统还包括隔离变压器(70)，所述隔离变压器(70)串联在所述电网(60)与所述并网换流器(50)之间。
  5. 根据权利要求3所述的空调系统，其特征在于，
    所述并网换流器(50)为四象限换流器。
  6. 根据权利要求2所述的空调系统，其特征在于，
    所述主压机换流器(30)和/或所述辅压机换流器(40)为四象限换流器。
  7. 根据权利要求1所述的空调系统，其特征在于，
    所述空调系统还包括蓄电池，所述蓄电池与所述直流母线连接。
  8. 根据权利要求1所述的空调系统，其特征在于，
    所述空调系统包括一台压缩机(20)和多台风机(10)，所述压缩机(20)和所述多台风机(10)与一台所述主压机换流器(30)驱动连接。
  9. 根据权利要求2所述的空调系统，其特征在于，
    所述空调系统包括多台压缩机(20)和一台风机(10)，所述多台压缩机(20)中的一台和所述一台风机(10)与所述主压机换流器(30)驱动连接；所述多台压缩机(20)中的其他压缩机与所述辅压机换流器(40)一一对应驱动连接。
  10. 根据权利要求1所述的空调系统，其特征在于，
    所述空调系统包括多台压缩机(20)和多台风机(10)，每台所述主压机换流器(30)与一台所述压缩机(20)和一台所述风机(10)驱动连接。
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