公开(公告)号：WO2016050415A1

公开(公告)日：2016-04-07

申请号：PCT/EP2015/069225

申请日：2015-08-21

Applicant: DANFOSS A/S

Inventor： SCHMIDT, Frede ,  FREDSLUND, Kristian ,  PRINS, Jan

IPC: F25B49/00

CPC classification number: F25B45/00 ,  F25B49/00 ,  F25B49/005 ,  F25B49/02 ,  F25B2400/16 ,  F25B2400/19 ,  F25B2500/19 ,  F25B2500/222 ,  F25B2700/04 ,  G01K13/00

Abstract: A level sensor is configured to provide a receiver level indicating an amount of the refrigerant present in the receiver and a level model provides a heat rejecting heat exchanger estimate indicating an amount of the refrigerant present in the heat rejecting heat exchanger based on a temperature of the refrigerant. From the sensor and the model, a loss of refrigerant from the RVCS system is estimated.

Abstract translation: 水平传感器被配置为提供指示接收器中存在的制冷剂量的接收器电平，并且级别模型提供了热阻换热器估计值，该估计值表示存在于排热热交换器中的制冷剂的量基于 制冷剂。 从传感器和模型来看，估计来自RVCS系统的制冷剂损失。

公开(公告)号：WO2016034298A1

公开(公告)日：2016-03-10

申请号：PCT/EP2015/064019

申请日：2015-06-23

Applicant: DANFOSS A/S

Inventor： MADSEN, Kenneth Bank ,  PRINS, Jan ,  FREDSLUND, Kristian

IPC: F25B41/00 ,  F25B41/04

CPC classification number: F25B41/00 ,  F25B41/04 ,  F25B2341/0012 ,  F25B2341/0013 ,  F25B2341/0015 ,  F25B2600/17 ,  F25B2600/2503 ,  F25B2700/195 ,  F25B2700/21163

Abstract: A method for controlling a variable capacity ejector unit (7) arranged in a refrigeration system (1) is disclosed. An ejector control signal for the ejector unit (7) is generated, based on an obtained temperature and an obtained pressure of refrigerant leaving a heat rejecting heat exchanger (3), or on the basis of a high pressure valve control signal for controlling an opening degree of a high pressure valve (6) arranged fluidly in parallel with the ejector unit (7). The ejector control signal indicates whether the capacity of the ejector unit (7) should be increased, decreased or maintained. The capacity of the ejector unit (7) is controlled in accordance with the generated ejector control signal. The power consumption of the refrigeration system (1) is reduced, while the pressure of the refrigerant leaving the heat rejecting heat exchanger (3) is maintained at an acceptable level.

Abstract translation: 公开了一种用于控制布置在制冷系统（1）中的可变容量喷射器单元（7）的方法。 基于获得的温度和获得的离开热排出热交换器（3）的制冷剂的压力，或者基于用于控制开口的高压阀控制信号，产生喷射器单元（7）的喷射器控制信号 与喷射器单元（7）流体平行布置的高压阀（6）的程度。 喷射器控制信号指示喷射器单元（7）的容量是否应当增加，减少或维持。 喷射器单元（7）的容量根据产生的喷射器控制信号进行控制。 制冷系统（1）的功率消耗降低，而离开排热热交换器（3）的制冷剂的压力保持在可接受的水平。

公开(公告)号：WO2017134215A1

公开(公告)日：2017-08-10

申请号：PCT/EP2017/052366

申请日：2017-02-03

Applicant: DANFOSS A/S

Inventor： FREDSLUND, Kristian ,  SCHMIDT, Frede ,  PRINS, Jan

IPC: F25B49/02

CPC classification number: F25B49/027 ,  F24F11/77 ,  F24F2140/20 ,  F25B2500/12 ,  F25B2500/19 ,  F25B2600/111 ,  F25B2700/2103 ,  F25B2700/2104 ,  F25B2700/21163 ,  Y02B30/743

Abstract: A method for controlling a fan (6) of a vapour compression system (1) is disclosed, the fan (6) being arranged to provide a secondary fluid flow across a heat rejecting heat exchanger (3). A temperature difference, ΔΤ= T out -T amb , between a temperature, T out , of refrigerant leaving the heat rejecting heat exchanger (3) and a temperature, T amb , of ambient air of the heat rejecting heat exchanger (3) is established. A setpoint value, ΔT setp , for the temperature difference, ΔΤ, is obtained, the setpoint value, ΔT setp , being dependent on the fan speed of the fan (6) in such a manner that the setpoint value, ΔT setp , increases as the fan speed increases. The fan speed of the fan (6) is controlled in order to control the temperature difference, ΔΤ, in accordance with the obtained setpoint value, ΔT setp .

Abstract translation: 公开了一种用于控制蒸气压缩系统（1）的风扇（6）的方法，所述风扇（6）被布置成提供穿过排热热交换器（3）的二次流体流动， 。 在离开排热热交换器（3）的制冷剂的温度T out之间的温度差ΔT = T out -T amb， ）和排热换热器（3）的环境空气的温度T amb建立。 获得用于温差ΔT的额定值ΔTsetp，其中设定值ΔTsetp取决于风扇6的风扇速度， 以这样的方式，当风扇速度增加时，额定值ΔTsetp 增加。 控制风扇（6）的风扇速度以根据所获得的设定值ΔT _{setp 控制温差ΔT。}

公开(公告)号：WO2017067858A1

公开(公告)日：2017-04-27

申请号：PCT/EP2016/074758

申请日：2016-10-14

Applicant: DANFOSS A/S

Inventor： PRINS, Jan ,  SCHMIDT, Frede ,  MADSEN, Kenneth, Bank ,  FREDSLUND, Kristian

IPC: F25B49/02 ,  F25B41/00 ,  F25B9/08

CPC classification number: F25B49/02 ,  F25B9/08 ,  F25B41/00 ,  F25B2341/0012 ,  F25B2400/075 ,  F25B2400/13 ,  F25B2400/16 ,  F25B2400/23 ,  F25B2600/2513 ,  F25B2700/19

Abstract: A method for controlling a vapour compression system (1) is disclosed, the vapour compression system (1) comprising at least one expansion device (8) and at least one evaporator (9). For each expansion device (8), an opening degree of the expansion device (8) is obtained, and a representative opening degree, OD rep , is identified based on the obtained opening degree(s) of the expansion device(s) (8). The representative opening degree could be a maximum opening degree, OD max , being the largest among the obtained opening degrees. The representative opening degree, OD rep , is compared to a predefined target opening degree, OD target , and a minimum setpoint value, SP rec , for a pressure prevailing inside a receiver (7), is calculated or adjusted, based on the comparison. The vapour compression system (1) is controlled to obtain a pressure inside the receiver (7) which is equal to or higher than the calculated or adjusted minimum setpoint value, SP rec .

Abstract translation: 公开了一种用于控制蒸气压缩系统（1）的方法，所述蒸气压缩系统（1）包括至少一个膨胀装置（8）和至少一个蒸发器（9）。 对于每个膨胀装置（8），获得膨胀装置（8）的开度，并且基于获得的膨胀装置（8）的开度识别出代表开度OD_reg。 膨胀装置（8）。 代表开放度可以是最大开放度，OD max max是获得的开放度中最​​大的开放度。 将代表性开度OD_reg与预定义的目标开度OD_target和最小设定值SP_rec_rec进行比较， 对于接收器（7）内主要的压力，基于比较来计算或调整。 控制蒸汽压缩系统（1）以获得接收器（7）内部的压力，该压力等于或高于计算或调节的最小设定点值SP rec。/ /

公开(公告)号：WO2018095786A1

公开(公告)日：2018-05-31

申请号：PCT/EP2017/079359

申请日：2017-11-15

Applicant: DANFOSS A/S

Inventor： PRINS, Jan ,  SCHMIDT, Frede ,  MADSEN, Kenneth Bank ,  FREDSLUND, Kristian

IPC: F25B49/02 ,  F25B41/00

Abstract: A method for controlling a vapour compression system (1) is disclosed. Malfunctioning of a gas bypass valve (8) is registered. An actual opening degree of the gas bypass valve (8) is derived, and a target opening degree of the gas bypass valve (8) is derived, based on one or more control parameters of the vapour compression system (1). The actual opening degree is compared to the target opening degree, and the vapour compression system (1) is controlled based on the comparison, and in order to match a mass flow of gaseous refrigerant through the gas bypass valve (8) to the actual opening degree of the gas bypass valve (8).

公开(公告)号：WO2017029011A1

公开(公告)日：2017-02-23

申请号：PCT/EP2016/065575

申请日：2016-07-01

Applicant: DANFOSS A/S

Inventor： PRINS, Jan ,  SCHMIDT, Frede ,  MADSEN, Kenneth Bank ,  FREDSLUND, Kristian

IPC: F25B5/02 ,  F25B41/00 ,  F25B49/02

CPC classification number: F25B49/02 ,  F25B41/00 ,  F25B2341/0012 ,  F25B2341/0015 ,  F25B2400/0751

Abstract: A vapour compression system (1) comprising at least two evaporator groups (5a, 5b, 5c), each evaporator group (5a, 5b, 5c) comprising an ejector unit (7a, 7b, 7c), at least one evaporator (9a, 9b, 9c) and a flow control device (8a, 8b, 8c) controlling a flow of refrigerant to the at least one evaporator (9a, 9b, 9c). For each evaporator group (5a, 5b, 5c) the outlet of the evaporator (9a, 9b, 9c) is connected to a secondary inlet (12a, 12b, 12c) of the corresponding ejector unit (7a, 7b, 7c). The vapour compression system (1) can be controlled in an energy efficient and stable manner. A method for controlling the vapour compression system (1) is also disclosed.

Abstract translation: 包括至少两个蒸发器组（5a，5b，5c）的蒸汽压缩系统（1），每个蒸发器组（5a，5b，5c）包括喷射器单元（7a，7b，7c），至少一个蒸发器（9a， 9b，9c）和控制制冷剂流向至少一个蒸发器（9a，9b，9c）的流量控制装置（8a，8b，8c）。 对于每个蒸发器组（5a，5b，5c），蒸发器（9a，9b，9c）的出口连接到相应的喷射器单元（7a，7b，7c）的次级入口（12a，12b，12c）。 蒸汽压缩系统（1）可以以节能和稳定的方式进行控制。 还公开了一种用于控制蒸汽压缩系统（1）的方法。

公开(公告)号：WO2016091418A1

公开(公告)日：2016-06-16

申请号：PCT/EP2015/073211

申请日：2015-10-08

Applicant: DANFOSS A/S

Inventor： FREDSLUND, Kristian ,  PRINS, Jan ,  MADSEN, Kenneth Bank ,  SCHMIDT, Frede

IPC: F25B41/00 ,  F25B41/04 ,  F25B49/02 ,  F25B9/00

CPC classification number: F25B9/008 ,  F25B41/00 ,  F25B41/043 ,  F25B49/02 ,  F25B2309/061 ,  F25B2341/0012 ,  F25B2341/0662 ,  F25B2400/0407 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2500/31 ,  F25B2600/2507 ,  F25B2700/195 ,  F25B2700/2109 ,  F25B2700/21151 ,  F25B2700/21175

Abstract: A method for controlling a valve arrangement (12), e.g. in the form of a three way valve, in a vapour compression system (1) is disclosed, the vapour compression system (1) comprising an ejector (6). The valve arrangement (12) is arranged to supply refrigerant to a compressor unit (2) from the gaseous outlet (11) of a receiver (7) and/or from the outlet of an evaporator (9). The vapour compression system (1) may be operated in a first mode of operation (summer mode) or in a second mode of operation (winter mode). When operated in the second mode of operation, it is determined whether or not conditions for operating the vapour compression system (1) in the first mode of operation are prevailing. If this is the case, the valve arrangement (12) is actively switched to the first mode of operation by closing a first inlet (13) towards the evaporator (7) and fully opening a second inlet (14) towards the receiver (7).

Abstract translation: 一种用于控制阀装置（12）的方法， 在三通阀的形式中，公开了一种蒸气压缩系统（1），所述蒸汽压缩系统（1）包括喷射器（6）。 阀装置（12）被布置成从接收器（7）的气体出口（11）和/或从蒸发器（9）的出口向制冷剂单元（2）供应制冷剂。 蒸汽压缩系统（1）可以在第一操作模式（夏季模式）或第二操作模式（冬季模式）中操作。 当在第二操作模式下操作时，确定在第一操作模式中是否运行蒸气压缩系统（1）的条件。 如果是这种情况，则通过关闭朝向蒸发器（7）的第一入口（13）并朝向接收器（7）完全打开第二入口（14），阀装置（12）被主动切换到第一操作模式， 。

公开(公告)号：WO2016078825A1

公开(公告)日：2016-05-26

申请号：PCT/EP2015/073171

申请日：2015-10-07

Applicant: DANFOSS A/S

Inventor： FREDSLUND, Kristian ,  SCHMIDT, Frede ,  MADSEN, Kenneth Bank ,  PRINS, Jan

IPC: F25B41/00 ,  F25B49/02 ,  F25B9/00

CPC classification number: F25B49/02 ,  F25B9/008 ,  F25B41/00 ,  F25B41/003 ,  F25B2341/0012 ,  F25B2341/0015 ,  F25B2341/0662 ,  F25B2400/075 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2500/29 ,  F25B2500/31 ,  F25B2600/02 ,  F25B2600/0253 ,  F25B2600/2507 ,  F25B2700/197 ,  Y02B30/741

Abstract: A method for controlling a vapour compression system (1) is disclosed, the vapour compression system (1) comprising an ejector (5). The method comprises controlling a compressor unit (2) in order to adjust a pressure inside a receiver (6), on the basis of a detected pressure of refrigerant leaving an evaporator (8). The portion of refrigerant leaving the evaporator (8) which is supplied to a secondary inlet (15) of the ejector is maximised and the portion of refrigerant supplied directly to the compressor unit (2) is minimised, while ensuring that the pressure of refrigerant leaving the evaporator (8) does not decrease below an acceptable level.

Abstract translation: 公开了一种用于控制蒸汽压缩系统（1）的方法，蒸汽压缩系统（1）包括喷射器（5）。 该方法包括基于检测到的离开蒸发器（8）的制冷压力来控制压缩机单元（2）以便调节接收器（6）内部的压力。 离开蒸发器的制冷剂部分（8）被最大化并且直接供应到压缩机单元（2）的制冷剂部分最小化，同时确保制冷剂离开的压力 蒸发器（8）不降低到可接受的水平以下。

公开(公告)号：WO2018095787A1

公开(公告)日：2018-05-31

申请号：PCT/EP2017/079360

申请日：2017-11-15

Applicant: DANFOSS A/S

Inventor： FREDSLUND, Kristian ,  MADSEN, Kenneth Bank ,  PRINS, Jan ,  SCHMIDT, Frede

IPC: F25B49/02

Abstract: A method for controlling a vapour compression system (1) is disclosed, the vapour compression system (1) comprising at least one compressor (2, 16), a heat rejecting heat exchanger (3), a high pressure expansion device (4, 15, 17), a receiver (5), an evaporator expansion device (6), an evaporator (7) and a gas bypass valve (8), arranged in a refrigerant path. It is registered that the gas bypass valve (8) is malfunctioning or saturated, and a pressure value for a pressure prevailing inside the receiver (5) is obtained. Finally, the vapour compression system (1) is controlled in order to control a gaseous refrigerant supply to the receiver (5) to adjust the pressure prevailing inside the receiver (5) to reach a target pressure level.

公开(公告)号：WO2018095785A1

公开(公告)日：2018-05-31

申请号：PCT/EP2017/079358

申请日：2017-11-15

Applicant: DANFOSS A/S

Inventor： SCHMIDT, Frede ,  PRINS, Jan ,  FREDSLUND, Kristian ,  MADSEN, Kenneth Bank

IPC: F25B41/06 ,  F25B49/02

Abstract: A method for controlling a vapour compression system (1) is disclosed. A mass flow of refrigerant along a part of the refrigerant path is estimated, based on measurements performed by one or more pressure sensors (10, 12, 13) for measuring a refrigerant pressure at selected positions along the refrigerant path and one or more temperature sensors (11, 4) for measuring a refrigerant temperature at selected positions along the refrigerant path. A refrigerant pressure or a refrigerant temperature at a selected position a pressure sensor (10, 12, 13) or temperature sensor (11, 14) along the refrigerant path is derived, based on the estimated mass flow. The vapour compression system (1) is allowed to continue operating, even if a sensor (10, 11, 12, 13, 14) is malfunctioning or unreliable.