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1. 发明授权

US5809794A Feed forward control of expansion valve 失效
标题翻译：膨胀阀前进控制
公开(公告)号：US5809794A
公开(公告)日：1998-09-22
申请号：US768743
申请日：1996-12-17
申请人： Lee L. Sibik , Daniel C. Leaver , Craig M. Goshaw
发明人： Lee L. Sibik , Daniel C. Leaver , Craig M. Goshaw
IPC分类号： F25B1/00 , F25B1/047 , F25B41/06 , G05D23/02 , G05D23/19 , F25B41/04 , G05D15/00
CPC分类号： F25B41/062 , F25B1/047 , F25B2339/0242 , F25B2341/063 , F25B2600/21 , F25B2600/2513 , F25B2700/04
摘要： A method of controlling an expansion valve in a refrigeration system. The method comprises the steps of controlling the modulation of the expansion valve based upon a first feedback control criteria; and controlling the modulation of the expansion valve based upon a second feed forward control criteria.
摘要翻译：一种控制制冷系统中膨胀阀的方法。该方法包括以下步骤：基于第一反馈控制标准控制膨胀阀的调制; 并根据第二前馈控制标准控制膨胀阀的调制。

2. 发明授权

US5632154A Feed forward control of expansion valve 失效
标题翻译：膨胀阀前进控制
公开(公告)号：US5632154A
公开(公告)日：1997-05-27
申请号：US396305
申请日：1995-02-28
申请人： Lee L. Sibik , Daniel C. Leaver , Craig M. Goshaw
发明人： Lee L. Sibik , Daniel C. Leaver , Craig M. Goshaw
IPC分类号： F25B1/00 , F25B1/047 , F25B41/06 , G05D23/02 , G05D23/19 , F25B41/00 , G05B13/02
CPC分类号： F25B41/062 , F25B1/047 , F25B2339/0242 , F25B2341/063 , F25B2600/21 , F25B2600/2513 , F25B2700/04
摘要： A method of controlling an expansion valve in a refrigeration system. The method comprises the steps of controlling the modulation of the expansion valve based upon a first feedback control criteria; and controlling the modulation of the expansion valve based upon a second feed forward control criteria.
摘要翻译：一种控制制冷系统中膨胀阀的方法。该方法包括以下步骤：基于第一反馈控制标准来控制膨胀阀的调制; 并根据第二前馈控制标准控制膨胀阀的调制。

3. 发明授权

US5355691A Control method and apparatus for a centrifugal chiller using a variable speed impeller motor drive 失效
标题翻译：使用变速叶轮电机驱动的离心式制冷机的控制方法和装置
公开(公告)号：US5355691A
公开(公告)日：1994-10-18
申请号：US107391
申请日：1993-08-16
申请人： Brian T. Sullivan , Craig M. Goshaw , Paul C. Rentmeester
发明人： Brian T. Sullivan , Craig M. Goshaw , Paul C. Rentmeester
IPC分类号： F04D27/02 , F25B1/053 , F25B49/02 , F25B1/00 , F04B49/00
CPC分类号： F04D27/0261 , F04D27/0284 , F25B1/053 , F25B49/022 , F25B2600/021 , Y02B30/741
摘要： A controller for controlling the capacity of a centrifugal chiller compressor. The compressor is driven by an electric motor and has variable inlet guide vanes that control the flow of refrigerant to the compressor. The controller establishes a dimensionless plot of possible points of compressor operation relating the pressure coefficient and the capacity coefficient of the compressor. The current operating point of the centrifugal compressor is located on the plot and a dynamic surge boundary control curve is positioned proximate a region of actual surge. Control is exercised responsive to the variations of the region of actual surge and the surge boundary control curve for controlling compressor capacity by varying the opening of the inlet guide vanes and varying the speed of the compressor to move the operating point of the compressor proximate the surge boundary control curve.
摘要翻译：用于控制离心冷却器压缩机的容量的控制器。压缩机由电动机驱动，并具有可变的入口导向叶片，其控制制冷剂到压缩机的流动。控制器建立与压缩系数和压缩机的容量系数有关的压缩机运行可能点的无量纲图。离心压缩机的当前工作点位于图上，动态浪涌边界控制曲线位于实际浪涌区域附近。通过改变入口导向叶片的开口并改变压缩机的速度以使压缩机的工作点靠近喘振的速度来响应于实际浪涌区域的变化和浪涌边界控制曲线来控制压缩机容量的控制边界控制曲线。

4. 发明授权

US5553997A Control method and apparatus for a centrifugal chiller using a variable speed impeller motor drive 失效
标题翻译：使用变速叶轮电机驱动的离心式制冷机的控制方法和装置
公开(公告)号：US5553997A
公开(公告)日：1996-09-10
申请号：US586417
申请日：1996-01-16
申请人： Craig M. Goshaw , Brian T. Sullivan , Paul C. Rentmeester
发明人： Craig M. Goshaw , Brian T. Sullivan , Paul C. Rentmeester
IPC分类号： F04D27/02 , F25B1/053 , F25B49/02
CPC分类号： F04D27/0261 , F04D27/0284 , F25B1/053 , F25B49/022 , F25B2600/021 , Y02B30/741
摘要： A method of controlling the operation of a centrifugal compressor in a water chiller system. The compressor's capacity is variable by modulating its speed of rotation or by modulating its inlet guide vane's position. The water chiller includes an evaporator having a leaving water temperature. The method comprises the steps of: monitoring the leaving water temperature; determining if the leaving water temperature is in a steady state; modulating the compressor capacity by modulating speed of rotation if the leaving water temperature is in a steady state; and modulating the compressor capacity by modulating inlet guide vane position if the leaving water temperature is not in a steady state.
摘要翻译：一种控制水冷却器系统中的离心压缩机的操作的方法。压缩机的容量通过调节其旋转速度或通过调节其入口导向叶片的位置而变化。水冷却器包括具有离开水温的蒸发器。该方法包括以下步骤：监测离开水温; 确定离开水温度是否处于稳定状态; 如果离开水温处于稳定状态，则通过调节旋转速度来调节压缩机容量; 并且如果离开水温度不处于稳定状态，则通过调节入口引导叶片位置来调节压缩机容量。

5. 发明授权

US5231846A Method of compressor staging for multi-compressor multi-circuited refrigeration systems 失效
标题翻译：多压缩机多回路制冷系统的压缩机分级方法
公开(公告)号：US5231846A
公开(公告)日：1993-08-03
申请号：US8917
申请日：1993-01-26
申请人： Craig M. Goshaw , Robert L. Oltman
发明人： Craig M. Goshaw , Robert L. Oltman
IPC分类号： F04C28/02 , F04C28/06 , F25B6/00 , F25B49/02 , G05D23/19
CPC分类号： F04C28/02 , F04C28/06 , F25B49/022 , F25B6/00 , G05D23/1912 , F25B2400/075 , F25B2600/0251
摘要： A method of staging and modulating compressors in a multi-circuited refrigeration system including a plurality of condensing heat exchange circuits where each condensing heat exchange circuit includes a plurality of compressors. The method comprises the steps of: accumulating a first operative condition for each compressor; accumulating a second operative condition for each compressor; determining the status of each compressor in each circuit and designating therefrom a first list of circuits having compressors available to be turned on and a second list of circuits having compressors available to be turned off. The method also comprises the steps of: initiating operation of the compressor from the first list with the lowest accumulation of the first operative condition whenever the system calls for an increase in capacity; terminating operation of the compressor from the second list having the greatest accumulation of the second operative condition whenever the system calls for a decrease in capacity; determining the number of compressors which should be modulating; and modulating, subject to the modulating compressor number determining step, the compressors necessary to meet the modulating compressor number in accordance with the greatest accumulation of the second operative condition.
摘要翻译：一种在包括多个冷凝热交换电路的多回路制冷系统中分段和调节压缩机的方法，其中每个冷凝热交换回路包括多个压缩机。该方法包括以下步骤：为每个压缩机累积第一操作条件; 累积每个压缩机的第二操作条件; 确定每个电路中的每个压缩机的状态并由此指定具有可打开的压缩机的第一列表电路和具有可被关闭的压缩机的第二电路列表。该方法还包括以下步骤：每当系统要求增加容量时，从第一列表起动压缩机的操作，其中第一操作条件的累积最低; 每当系统要求降低容量时，压缩机从第二列表中终止具有最大累积第二操作条件的操作; 确定应调节的压缩机的数量; 并且根据调节压缩机数量确定步骤，根据第二操作条件的最大累积调制满足调制压缩机数量所必需的压缩机。

6. 发明授权

US5537830A Control method and appartus for a centrifugal chiller using a variable speed impeller motor drive 失效
标题翻译：使用变速叶轮电机驱动的离心式冷水机的控制方法和附件
公开(公告)号：US5537830A
公开(公告)日：1996-07-23
申请号：US345149
申请日：1994-11-28
申请人： Craig M. Goshaw , Brian T. Sullivan , Paul C. Rentmeester
发明人： Craig M. Goshaw , Brian T. Sullivan , Paul C. Rentmeester
IPC分类号： F04D27/02 , F25B1/053 , F25B49/02 , F25D17/02
CPC分类号： F04D27/0261 , F04D27/0284 , F25B1/053 , F25B49/022 , F25B2600/021 , Y02B30/741
摘要： A method of controlling the operation of a centrifugal compressor in a water chiller system. The compressor's capacity is variable by modulating its speed of rotation or by modulating its inlet guide vane's position. The water chiller includes an evaporator having a leaving water temperature. The method comprises the steps of: monitoring the leaving water temperature; determining if the leaving water temperature is in a steady state; modulating the compressor capacity by modulating speed of rotation if the leaving water temperature is in a steady state; and modulating the compressor capacity by modulating inlet guide vane position if the leaving water temperature is not in a steady state.
摘要翻译：一种控制水冷却器系统中的离心压缩机的操作的方法。压缩机的容量通过调节其旋转速度或通过调节其入口导向叶片的位置而变化。水冷却器包括具有离开水温的蒸发器。该方法包括以下步骤：监测离开水温; 确定离开水温度是否处于稳定状态; 如果离开水温处于稳定状态，则通过调节旋转速度来调节压缩机容量; 并且如果离开水温度不处于稳定状态，则通过调节入口引导叶片位置来调节压缩机容量。

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