CN101821565A - 用于计算带有可变速度压缩机的制冷***的参数的***以及方法 - Google Patents
用于计算带有可变速度压缩机的制冷***的参数的***以及方法 Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
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Abstract
本发明提供了一种用于计算具有可变速度压缩机的制冷***的参数的***以及方法。压缩机连接于冷凝器以及蒸发器。蒸发器传感器输出与蒸发器压力及蒸发器温度中至少之一相对应的蒸发器信号。变频驱动器调制传送至压缩机的电功率以调制压缩机的速度。控制模块连接于变频驱动器并接受蒸发器信号,监控来自所述变频驱动器的电功率数据及压缩机速度数据,并且基于蒸发器信号、电功率数据以及压缩机速度数据计算冷凝器温度及冷凝器压力中至少之一。
Description
相关申请的交叉引用
本申请要求于2008年10月7日提交的美国专利申请No.12/246,297的优先权。本申请还要求于2007年10月8日提交的美国临时申请No.60/978,258以及于2007年10月8日提交的美国临时申请No.60/978,258的优先权。以上各个申请的全部公开内容通过引用并入本文。
技术领域
本公开涉及压缩机,更具体地涉及用于计算带有可变速度压缩机的制冷***的参数的***以及方法。
背景技术
这部分的陈述仅提供了涉及本公开的背景信息,其可能不构成现有技术。
压缩机可用在多种工业及住宅应用中以在制冷、热泵、HVAC(采暖通风与空调)、或冷却***(一般为“制冷***”)内循环制冷剂以提供期望的加热效果或冷却效果。在前面的任意应用中,压缩机应当提供一致且有效率的运转以确保特定应用(即,制冷、热泵、HVAC、或冷却***)正常工作。可变速度压缩机可用于根据制冷***的负载改变压缩机容量。压缩机以及制冷***的运转参数可被保护、控制、以及诊断***使用以确保压缩机以及制冷***部件的最佳运转。例如,蒸发器温度和/或冷凝器温度可用于诊断、保护、以及控制压缩机及其它制冷***部件。
发明内容
提供了一种***,其可包括:压缩机,所述压缩机连接于冷凝器和蒸发器;蒸发器传感器,所述蒸发器传感器输出与蒸发器压力和蒸发器温度中至少之一相对应的蒸发器信号;变频驱动器,所述变频驱动器调制传送至所述压缩机的电功率以调制所述压缩机的速度;以及连接于所述变频驱动器的控制模块。所述控制模块可以:接收所述蒸发器信号,监控来自所述变频驱动器的电功率数据以及压缩机速度数据,并基于所述蒸发器信号、所述电功率数据以及所述压缩机速度数据计算冷凝器温度和冷凝器压力中至少之一。
在其它特征中,所述电功率数据可包括用于所述压缩机的压缩机电流数据。
在其它特征中,排气温度传感器可输出与排出所述压缩机的制冷剂温度相对应的排气温度信号;所述控制模块可基于所计算出的冷凝器温度和所导出的冷凝器压力中至少之一以及所述排气温度信号计算所述压缩机的排气过热温度。
在其它特征中,所述排气温度传感器可包括位于所述压缩机外部并且位于从所述压缩机延伸的排气管上的热电偶。
在其它特征中,所述排气温度传感器可包括安装于所述压缩机内并且安装在所述压缩机的定涡旋盘上的热敏电阻。
在其它特征中,所述控制模块可基于所计算出的排气过热温度监控所述压缩机的过热条件以及回液条件中至少之一。
在其它特征中,所述控制模块可基于所述冷凝器温度及所述冷凝器压力中至少之一以及所述蒸发器温度计算压缩机容量、压缩机功率、能量效率比、压缩机负载以及功率消耗(千瓦时/天)中至少之一。
在其它特征中,提供一种***,其包括:压缩机,所述压缩机连接于冷凝器和蒸发器;冷凝器传感器,所述冷凝器传感器输出与冷凝器压力和冷凝器温度中至少之一相对应的冷凝器信号;排气温度传感器,所述排气温度传感器输出与排出所述压缩机的制冷剂温度相对应的排气温度信号;变频驱动器,所述变频驱动器调制传送至所述压缩机的电功率以调制所述压缩机的速度;以及连接于所述变频驱动器的控制模块。所述控制模块可以:接收所述冷凝器信号以及所述排气温度信号,监控来自所述变频驱动器的电功率数据以及压缩机速度数据,并基于所述冷凝器信号、所述排气温度信号、所述电功率数据以及所述压缩机速度数据计算蒸发器温度和蒸发器压力中至少之一。
在其它特征中,所述排气温度传感器可包括位于所述压缩机外部并且位于从所述压缩机延伸的排气管上的热电偶。
在其它特征中,所述排气温度传感器可包括安装于所述压缩机内并且安装在所述压缩机的定涡旋盘上的热敏电阻。
在其它特征中,所述电功率数据可包括用于所述压缩机的压缩机电流数据。
在其它特征中,吸气温度传感器可输出与进入所述压缩机的制冷剂温度相对应的吸气温度信号,所述控制模块可基于所计算出的蒸发器温度及所导出的蒸发器压力中至少之一以及所述吸气温度信号计算所述压缩机的吸气过热温度。
在其它特征中,所述控制模块可基于所计算出的吸气过热温度监控所述压缩机的过热条件以及回液条件中至少之一。
在其它特征中,所述控制模块可基于所述蒸发器温度及所述蒸发器压力中至少之一以及所述冷凝器温度计算压缩机容量、压缩机功率、能量效率比、压缩机负载以及功率消耗(千瓦时/天)中至少之一。
在其它特征中,提供一种方法,其包括:接收与冷凝器的冷凝器压力和冷凝器温度中至少之一相对应的冷凝器信号,所述冷凝器连接于压缩机和蒸发器;用变频驱动器调制所述压缩机的速度,所述变频驱动器构造为调制传送至所述压缩机的电功率;接收来自所述变频驱动器的电功率数据以及压缩机速度数据;接收来自排气温度传感器的排气温度信号,所述排气温度信号对应于排出所述压缩机的制冷剂的温度;基于所述冷凝器信号、所述排气温度信号、所述电功率数据以及所述压缩机速度数据计算蒸发器温度和蒸发器压力中至少之一。
在其它特征中,接收所述电功率数据可包括接收用于所述压缩机的压缩机电流数据。
在其它特征中,所述方法可包括:接收来自吸气温度传感器的吸气温度信号,所述吸气温度信号对应于进入所述压缩机的制冷剂的温度,以及基于所计算出的蒸发器温度和所导出的蒸发器压力中至少之一以及所述吸气温度信号计算所述压缩机的吸气过热温度。
在其它特征中,所述方法可包括:基于所计算出的吸气过热温度监控所述压缩机的过热条件及回液条件中至少之一。
在其它特征中,所述方法可包括:基于所述蒸发器温度及所述蒸发器压力中至少之一以及所述冷凝器温度计算压缩机容量、压缩机功率、能量效率比、压缩机负载以及功率消耗(千瓦时/天)中至少之一。
通过这里提供的说明,其它的应用领域将变得显而易见。应当理解,该说明及特定示例仅出于说明目的而不是试图限制本公开的范围。
附图说明
这里所描述的附图仅出于说明的目的而不是试图以任何方式限制本发明的范围。
图1是制冷***的示意图。
图2是制冷***的示意图。
图3是蒸发器温度以及冷凝器温度的曲线图。
图4是蒸发器温度以及冷凝器温度的曲线图。
图5是蒸发器温度以及冷凝器温度的曲线图。
图6是示出与吸气过热以及室外温度相关联的排气过热的曲线图。
图7是示出与压缩机功率以及压缩机速度相关联的冷凝器温度的曲线图。
图8是压缩机的剖视图。
图9是示出用于制冷***的导出数据的流程图。
具体实施方式
下文的描述性质上仅是示例性的而不是试图限制本公开、应用及用途。应当理解,在这些附图中,相应的参考数字指示相似的或相应的部件及特征。
如在这里所使用的,术语模块、控制模块以及控制器指以下的一个或多个:特定用途集成电路(ASIC)、电子电路、执行一个或多个软件或固件程序的处理器(共享的、专用的或分组的)及存储器、组合的逻辑电路、或其它提供所述功能性的合适的部件。如在这里所使用的,计算机可读介质指能够存储计算机数据的任何介质。计算机可读介质包括但不限于:存储器、随机存取存储器(RAM)、只读存储器(ROM)、可编程只读存储器(PROM)、可擦写可编程只读存储器(EPROM)、电可擦写可编程只读存储器(EEPROM)、闪存、只读光盘、软盘、磁带、其它磁性介质、光学介质或能够存储计算机数据的任何其它装置或介质。
参考图1,示例性的制冷***5包括压缩制冷剂蒸汽的压缩机10。尽管图1中示出为特定的制冷***,但本教示适用于任何制冷***,包括热泵、HVAC以及冷却***。来自压缩机10的制冷剂蒸汽传送至冷凝器12,在那里制冷剂蒸汽在高压下液化,因此将热量排向外部空气。离开冷凝器12的液体制冷剂通过膨胀阀14传送至蒸发器16。膨胀阀14可以是用于控制制冷剂的过热的机械阀或电子阀。制冷剂通过膨胀阀14,在那里,压降导致高压液态制冷剂产生低压的液体及蒸汽混合物。当热空气穿过蒸发器16时,低压液体转化为气体,因此从蒸发器16带走热量。低压气体再一次传送至压缩机10,在那里低压气体被压缩为高压气体,并且传送至冷凝器12以再次开始制冷循环。
压缩机10可由容置在外壳20内的变频驱动器22来驱动,其也被称为可变频率驱动器(VFD)。外壳20可在压缩机10附近。变频驱动器22接收来自电源18的电功率并将电功率传送至压缩机10。变频驱动器22包括带有处理器以及软件的控制模块25,以能够操作来调制并控制传送至压缩机10的电动马达的电功率的频率。控制模块25包括用于存储数据的计算机可读介质,所述数据包括由处理器执行以调制并控制传送至压缩机的电动马达的电功率的频率的软件以及控制模块25执行并实施本教示的保护及控制算法所必需的软件。通过调制传送至压缩机10的电动马达的电功率的频率,控制模块25可因此调制并控制压缩机10的速度,并且因此调制并控制压缩机10的容量。
变频驱动器22包括固态电子元件以调制电功率的频率。通常,变频驱动器22将输入的电功率从AC(交流电)转换为DC(直流电),并且之后将电功率从DC转换回期望频率的AC。例如,变频驱动器22可利用全波整流电桥对电功率直接整流。然后,变频驱动器22可使用绝缘栅双极晶体管(IGBT)或晶闸管对电功率进行斩波以实现期望的频率。其它合适的电子部件可用于调制来自电源18的电功率的频率。
压缩机10的电动马达速度通过从变频驱动器22接收的电功率的频率控制。例如,当在60Hz的电功率下驱动压缩机10时,压缩机10可在全容量工作状态下工作。当在30Hz的电功率下驱动压缩机10时,压缩机10可在半容量工作状态下工作。
在执行程序以调制传送至压缩机10的电动马达的电功率期间,控制模块25可产生对应于压缩机电流和/或压缩机功率的数据。控制模块25可利用对应于压缩机电流和/或压缩机功率的数据计算和导出其它压缩机和制冷***的参数。
如在美国申请No.60/978,258题目为“可变速度压缩机保护***以及方法(VARIABLE SPEED COMPRESSOR PROTECTION SYSTEM ANDMETHOD)”的公开中所描述的,其公开内容通过引用并入本文,吸气过热(SSH)以及排气过热(DSH)可用于监控或预测压缩机10的回液状态或过热状态。另外,冷凝器温度(Tcond)可用于导出DSH。同样,蒸发器温度(Tevap)可用于导出SSH。
压缩机回液或过热状态是不希望的并且可对压缩机10或其它制冷***部件产生损害。吸气过热(SSH)和/或排气过热(DSH)可与压缩机10的回液或过热状态相关联并且可被监控以检测和/或预测压缩机10的回液或过热状态。DSH是离开压缩机的制冷剂蒸汽的温度(也被称为排气管线温度(DLT))与饱和的冷凝器温度(Tcond)之间的差。吸气过热(SSH)是进入压缩机的制冷剂蒸汽的温度(也被称为吸气管线温度(SLT))与饱和的蒸发器温度(Tevap)之间的差。
SSH与DSH可以是相互关联的,如图6所示。对于涡旋型压缩机,DSH与SSH之间的相关性可能特别准确,而外部环境温度仅是二次效应。如图6所示,对于室外温度(ODT)为华氏115度、华氏95度、华氏75度以及华氏55度,示出了DSH与SSH之间的相关性。图6中所示的相关性仅是示例,并且特定压缩机的特定相关性可根据压缩机的类型、型号、容量等变化。
当SSH接近0度时或当DSH接近华氏20至40度时,可发生回液状态。为此,DSH可用于检测回液状态的开始及其严重性。当SSH处于0度时,SSH可能不能指示回液状态的严重性。随着回液状态变得更加严重,SSH保持在0度附近。然而,当SSH处于0度时,DSH可能在华氏20到40度之间并且可更加准确地指示回液状态的严重性。当DSH在华氏30度到华氏80度的范围内时,压缩机10可在正常范围内工作。当DSH低于华氏30度时,可能发生回液状态的开始。当DSH低于华氏10度时,可能发生严重的回液状态。
关于过热,当DSH大于华氏80度时,过热状态的开始可能发生。当DSH大于华氏100度时,可能存在严重的过热状态。
在图6中,示出了对于典型的制冷剂充填水平的通常SSH温度。例如,随着制冷***5中的制冷剂充填的百分比降低,SSH通常增加。
如在美国申请No.60/978,258题目为“可变速度压缩机保护***以及方法(VARIABLE SPEED COMPRESSOR PROTECTION SYSTEM ANDMETHOD)”的公开中所进一步描述的,其公开内容通过引用并入本文,Tcond可以是压缩机功率以及压缩机速度的函数。基于压缩机功率或电流以及压缩机速度,控制模块25可导出Tcond。
Tcond可以从其它***参数中导出。具体地,Tcond可从压缩机电流以及电压(即,压缩机功率)、压缩机速度、以及与压缩机10有关的压缩机映射数据中导出。一种用于固定速度压缩机的基于电流、电压以及压缩机映射数据导出Tcond的方法在美国申请No.11/059,646公开号为No.US2005/0235660的“压缩机诊断及保护***(Compressor Diagnosticand Protection System)”的共同转让申请中描述。使压缩机电流以及电压与Tcond相关的用于固定速度压缩机的压缩机映射数据可以是压缩机特有的,并且是基于特定压缩机类型、型号以及容量的测试数据的。
在可变速度压缩机的情况下,除压缩机功率外,Tcond也可是压缩机速度的函数。
图7示出了以瓦特表示的压缩机功率与压缩机速度之间的曲线相关图。如图所示,Tcond是压缩机功率以及压缩机速度的函数。这样,可基于测试数据导出用于特定压缩机的具有与压缩机功率、压缩机速度以及Tcond相关的数据的三维压缩机映射。可使用压缩机电流代替压缩机功率。然而,对于减少任何线路电压变化的冲击而言,压缩机功率比压缩机电流更优选。压缩机映射可存储在能够被控制模块25读取的计算机可读介质中。
这样,基于压缩机功率数据以及压缩机速度数据,控制模块25可计算Tcond。在执行计算以将来自电源18的电功率转换为期望频率的电功率期间,控制模块25可计算、监控、或检测压缩机功率数据。这样,对控制模块25来说压缩机功率以及电流数据可容易获得。另外,基于传送至压缩机10的电动马达的电功率的频率,控制模块25可计算、监控、或检测压缩机速度。这样,对控制模块25来说,压缩机速度数据也可容易地获得。基于压缩机功率以及压缩机速度,控制模块25可导出Tcond。
在测量或计算Tcond之后,控制模块25可计算作为Tcond与DLT(排气管线温度)之差的DSH(排气过热)。DLT数据可通过外部DLT传感器41接收。可替代地,可使用嵌在压缩机10内的内部DLT传感器30。
控制模块25可使用Tcond导出包括压缩机容量、功率、能量效率比、负载、千瓦时/天等其它参数。
Tcond或Tevap可从其它测量的制冷***参数中导出。具体地,Tcond可从Tevap、压缩机电流、以及压缩机速度中导出。同样,Tevap可从Tcond、DLT、压缩机电流以及压缩机速度中导出。
如在图1中所示,蒸发器16包括蒸发器温度传感器40,其测量Tevap并将Tevap传送至控制模块25。可替代地,可使用蒸发器压力传感器。如下面参考图2所述的,也可使用冷凝器温度或压力传感器。
如上所述,控制模块25可接收Tevap并且可接收作为操作变频驱动器22以及调制传送至压缩机10的功率的频率的结果的压缩机速度以及压缩机电流数据。
基于从特定压缩机类型、型号以及容量的现场试验中导出的压缩机映射数据,控制模块25可从Tevap、压缩机速度以及压缩机电流中计算Tcond。压缩机映射可使Tcond与Tevap、压缩机电流以及压缩机速度相关联。
如在图3、图4以及图5中所示,对于不同的压缩机速度,Tcond以图线的方式与Tevap以及压缩机电流相关。具体地,图3示出了对于3600RPM(每分钟转数)的压缩机速度,与Tevap以及压缩机电流相关的Tcond。图4示出了对于4500RPM的压缩机速度,与Tevap以及压缩机电流相关的Tcond。图5示出了对于6000RPM的压缩机速度,与Tevap以及压缩机电流相关的Tcond。图3、图4、以及图5是示例性的。跨越一系列的压缩机速度以及压缩机电流的其它的压缩机映射数据可被控制模块25使用并且存储在可被控制模块25读取的计算机可读介质中。
图3、图4、以及图5通过图表叙述了对于特定压缩机速度的Tcond、Tevap以及不同的压缩机电流。例如在图4中,压缩机电流示出为在4.5到30之间的不同安培数水平。示出为在4500RPM的压缩机速度下各个压缩机电流的对应Tcond对Tevap曲线。
这样,控制模块可从由蒸发器温度传感器40测量的Tevap、通过操作变频驱动器22获得的压缩机速度以及压缩机电流数据中导出Tcond。
如图2所示,冷凝器12可包括冷凝器温度传感器42,其可感测Tcond并将Tcond传送至控制模块25。可替代地,可使用冷凝器压力传感器。基于由冷凝器温度传感器42测量的Tcond,控制模块25可从Tcond、DLT、压缩机电流以及压缩机速度根据如上所述以及如图3、图4以及图5所示的压缩机映射数据来计算Tevap。
这样,控制模块25可从由冷凝器温度传感器42测量的Tcond、由DLT传感器41测量的DLT、以及通过操作变频驱动器22获得的压缩机电流及压缩机速度数据从中导出Tevap。同样,控制模块25可从由蒸发器温度传感器40测量的Tevap以及通过操作变频驱动器22获得的压缩机电流及压缩机速度数据中导出Tcond。
DLT数据可由外部DLT传感器41接收。DLT传感器41可以是位于从压缩机10延伸的排气管上的热电偶。来自DLT传感器41的DLT数据可对应于压缩机排气温度。可替代地,可使用嵌在压缩机10内的内部DLT传感器41。换句话说,DLT传感器41可集成在压缩机10内部。在涡旋压缩机的情况下,DLT传感器41可以是暴露于从压缩机构排出的气体的热敏电阻并且安装在定涡旋盘上。热敏电阻可以是正温度系数型(PTC)或负温度系数型(NTC)热敏电阻。在图8中示出了内部DLT传感器,其标记为元件30并且安装在压缩机10的定涡旋盘上。
如以上及在美国申请No.60/978,258题目为“可变速度压缩机保护***以及方法(VARIABLE SPEED COMPRESSOR PROTECTION SYSTEMAND METHOD)”的公开中所述,其公开内容通过引用并入本文,可从Tcond以及Tevap中导出各种制冷***性能特性以及数据。具体地,可从Tcond以及Tevap中导出排气过热、吸气过热、容量、功率、能量效率比、负载以及千瓦时/天。
因为可从质量流量、Tcond以及压缩机速度中计算出Tevap,所以控制模块25可从进入冷板15的吸气(Ts)与位于变频驱动器22上或其附近的散热器温度(Ti)之间的温度差中导出质量流量。控制模块25可根据以下等式计算ΔT:
等式1:ΔT=Ts-Ti
控制模块25可基于ΔT并且通过确定变频驱动器22施加的热来确定质量流量。如在图9中所示,质量流量可基于变频驱动器22的损失热以及ΔT导出。
参考图9,输入包括压缩机速度(RPM)120、压缩机电流122、压缩机电压124、压缩机功率因子126、Ti 128以及Ts 130。从压缩机电流122、压缩机电压124以及功率因子126可导出压缩机功率132。从温度Ti 128以及Ts 130可导出ΔT 134。从RPM 120以及功率可导出Tcond 136。从RPM 120以及功率132还可导出变频器热损失138。从变频器热损失以及ΔT 134可导出质量流量140。从RPM 120、Tcond 136以及质量流量140可导出Tevap 142。从Tevap 142以及Ts 130可导出SSH 144。从SSH 144以及由环境温度传感器29感测的环境温度可导出DSH 146。一旦导出DSH 146,可得到上述算法的所有益处,包括保护压缩机10不受回液及过热条件的影响。
如通过虚线141所示,Tcond以及Tevap可迭代计算以更准确地导出Tcond以及Tevap。例如,使用三次迭代可实现最佳收敛。也可使用更多或更少的迭代。另外,在图9中所描述的任一计算的或导出的变量可替代地可以直接感测或测量。这样剩余变量可基于感测的或测量的数据计算或导出。
Claims (19)
1.一种***,包括:
压缩机,所述压缩机连接于冷凝器和蒸发器;
蒸发器传感器,所述蒸发器传感器输出与蒸发器压力和蒸发器温度中至少之一相对应的蒸发器信号;
变频驱动器,所述变频驱动器调制传送至所述压缩机的电功率以调制所述压缩机的速度;
连接于所述变频驱动器的控制模块,所述控制模块:接收所述蒸发器信号,监控来自所述变频驱动器的电功率数据以及压缩机速度数据,并基于所述蒸发器信号、所述电功率数据以及所述压缩机速度数据计算冷凝器温度和冷凝器压力中至少之一。
2.根据权利要求1所述的***,其中,所述电功率数据包括用于所述压缩机的压缩机电流数据。
3.根据权利要求1所述的***,还包括排气温度传感器,所述排气温度传感器输出与排出所述压缩机的制冷剂温度相对应的排气温度信号;其中所述控制模块基于所计算出的冷凝器温度和所导出的冷凝器压力中至少之一以及所述排气温度信号计算所述压缩机的排气过热温度。
4.根据权利要求3所述的***,其中,所述排气温度传感器包括位于所述压缩机外部并且位于从所述压缩机延伸的排气管上的热电偶。
5.根据权利要求3所述的***,其中,所述排气温度传感器包括安装于所述压缩机内并且安装在所述压缩机的定涡旋盘上的热敏电阻。
6.根据权利要求3所述的***,其中,所述控制模块基于所计算出的排气过热温度监控所述压缩机的过热条件以及回液条件中至少之一。
7.根据权利要求1所述的***,其中,所述控制模块基于所述冷凝器温度及所述冷凝器压力中至少之一以及所述蒸发器温度计算压缩机容量、压缩机功率、能量效率比、压缩机负载以及功率消耗(千瓦时/天)中至少之一。
8.一种***,包括:
压缩机,所述压缩机连接于冷凝器和蒸发器;
冷凝器传感器,所述冷凝器传感器输出与冷凝器压力和冷凝器温度中至少之一相对应的冷凝器信号;
排气温度传感器,所述排气温度传感器输出与排出所述压缩机的制冷剂温度相对应的排气温度信号;
变频驱动器,所述变频驱动器调制传送至所述压缩机的电功率以调制所述压缩机的速度;
连接于所述变频驱动器的控制模块,所述控制模块:接收所述冷凝器信号以及所述排气温度信号,监控来自所述变频驱动器的电功率数据以及压缩机速度数据,并基于所述冷凝器信号、所述排气温度信号、所述电功率数据以及所述压缩机速度数据计算蒸发器温度和蒸发器压力中至少之一。
9.根据权利要求8所述的***,其中,所述排气温度传感器包括位于所述压缩机外部并且位于从所述压缩机延伸的排气管上的热电偶。
10.根据权利要求8所述的***,其中,所述排气温度传感器包括安装于所述压缩机内并且安装在所述压缩机的定涡旋盘上的热敏电阻。
11.根据权利要求8所述的***,其中,所述电功率数据包括用于所述压缩机的压缩机电流数据。
12.根据权利要求8所述的***,还包括吸气温度传感器,所述吸气温度传感器输出与进入所述压缩机的制冷剂温度相对应的吸气温度信号,其中,所述控制模块基于所计算出的蒸发器温度及所导出的蒸发器压力中至少之一以及所述吸气温度信号计算所述压缩机的吸气过热温度。
13.根据权利要求12所述的***,其中,所述控制模块基于所计算出的吸气过热温度监控所述压缩机的过热条件以及回液条件中至少之一。
14.根据权利要求8所述的***,其中,所述控制模块基于所述蒸发器温度及所述蒸发器压力中至少之一以及所述冷凝器温度计算压缩机容量、压缩机功率、能量效率比、压缩机负载以及功率消耗(千瓦时/天)中至少之一。
15.一种方法,包括:
接收与冷凝器的冷凝器压力和冷凝器温度中至少之一相对应的冷凝器信号,所述冷凝器连接于压缩机和蒸发器;
用变频驱动器调制所述压缩机的速度,所述变频驱动器构造为调制传送至所述压缩机的电功率;
接收来自所述变频驱动器的电功率数据以及压缩机速度数据;
接收来自排气温度传感器的排气温度信号,所述排气温度信号对应于排出所述压缩机的制冷剂的温度;
基于所述冷凝器信号、所述排气温度信号、所述电功率数据以及所述压缩机速度数据计算蒸发器温度和蒸发器压力中至少之一。
16.根据权利要求15所述的方法,其中,接收所述电功率数据包括接收用于所述压缩机的压缩机电流数据。
17.根据权利要求15所述的方法,还包括:
接收来自吸气温度传感器的吸气温度信号,所述吸气温度信号对应于进入所述压缩机的制冷剂的温度,以及
基于所计算出的蒸发器温度和所导出的蒸发器压力中至少之一以及所述吸气温度信号计算所述压缩机的吸气过热温度。
18.根据权利要求17所述的方法,还包括:基于所计算出的吸气过热温度监控所述压缩机的过热条件及回液条件中至少之一。
19.根据权利要求15所述的方法,还包括:基于所述蒸发器温度及所述蒸发器压力中至少之一以及所述冷凝器温度计算压缩机容量、压缩机功率、能量效率比、压缩机负载以及功率消耗(千瓦时/天)中至少之一。
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- 2008-10-08 CN CN2008801106650A patent/CN101821565B/zh active Active
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103913024A (zh) * | 2013-01-09 | 2014-07-09 | 思科普有限责任公司 | 用于控制变速压缩机的速度的方法 |
CN103913024B (zh) * | 2013-01-09 | 2016-08-17 | 思科普有限责任公司 | 用于控制变速压缩机的速度的方法 |
CN105890246A (zh) * | 2015-02-13 | 2016-08-24 | 旺矽科技股份有限公司 | 用于冷却工作流体的适应性温度控制*** |
CN107367095A (zh) * | 2017-07-28 | 2017-11-21 | 广东美芝制冷设备有限公司 | 压缩机功率模块温度控制方法及控制*** |
CN107367095B (zh) * | 2017-07-28 | 2020-08-04 | 广东美芝制冷设备有限公司 | 压缩机功率模块温度控制方法及控制*** |
CN110145905A (zh) * | 2019-04-25 | 2019-08-20 | 安徽美博智能电器有限公司 | 一种压缩机的控制方法及装置 |
CN112682989A (zh) * | 2020-12-29 | 2021-04-20 | 珠海格力电器股份有限公司 | 压缩机转速控制方法、装置、设备及冰箱 |
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US20090095002A1 (en) | 2009-04-16 |
WO2009048577A9 (en) | 2010-04-08 |
WO2009048577A3 (en) | 2009-08-06 |
EP2195588A4 (en) | 2015-01-07 |
WO2009048577A8 (en) | 2009-11-12 |
CN101821565B (zh) | 2013-08-14 |
EP2195588A2 (en) | 2010-06-16 |
US8418483B2 (en) | 2013-04-16 |
KR20100057894A (ko) | 2010-06-01 |
WO2009048577A2 (en) | 2009-04-16 |
US20140123692A1 (en) | 2014-05-08 |
US9494354B2 (en) | 2016-11-15 |
EP2195588B1 (en) | 2018-03-21 |
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