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    • 1. 发明申请
    • Method And System For Fluid Flow Control In A Fluid Network System
    • 流体网络系统中流体流动控制的方法和系统
    • US20140094105A1
    • 2014-04-03
    • US14096883
    • 2013-12-04
    • Michael LundhJan Nyqvist
    • Michael LundhJan Nyqvist
    • E21F1/00G05D7/06E21F1/02
    • E21F1/00E21F1/02G05D7/0617G05D7/0676G05D7/0682Y10T137/0318
    • A method of controlling fluid flow in a fluid network system by means of a plurality of fluid machines. The disclosure provides a simple empirical method of identifying network characteristics of the fluid network system used for providing the required fluid flow rate in the fluid network system utilizing minimal fluid machine power. The method includes the steps of determining a relation between a change in fluid machine speed and a corresponding change in fluid flow rate for each of the plurality of fluid machines empirically; determining a minimum total fluid machine power which provides a minimum required flow rate in the fluid network system based on a constraint involving the relation between the fluid flow rate and the corresponding fluid machine speed, and controlling a speed of the plurality of fluid machines such that the minimum total fluid machine power in the fluid network system is attained.
    • 一种通过多个流体机器控制流体网络系统中的流体流动的方法。 本公开提供了一种简单的经验方法,用于识别用于使用最小流体机械功率在流体网络系统中提供所需流体流速的流体网络系统的网络特性。 该方法包括以下步骤:经验地确定流体机器速度的变化与多个流体机器中的每一个的流体流速的相应变化之间的关系; 基于涉及流体流速和相应的流体机器速度之间的关系的约束,确定在流体网络系统中提供最小所需流量的最小总流体机械功率,以及控制多个流体机器的速度,使得 达到流体网络系统中最小总流体机械功率。
    • 2. 发明申请
    • System For Controlling An Ambient Air Parameter
    • 控制环境空气参数的系统
    • US20120041604A1
    • 2012-02-16
    • US13246301
    • 2011-09-27
    • Alf IsakssonLars Brannstrom
    • Alf IsakssonLars Brannstrom
    • G05D23/19
    • G05D23/1905E21F1/02F24F11/30F24F11/56F24F2110/00G05D23/1932
    • A control system for controlling at least one environmental parameter, such as temperature or air quality, in an operating area in response to sensor signals. The system includes a central control unit, actuators and mobile sensor units, and also at least one, preferably a plurality, of communication nodes which are placed in the operating area. Each one of the communication nodes is configured to mediate signals between the sensor units and the central control unit in a monitoring area by wirelessly receiving sensor signals from sensor units located within its monitoring area and forwarding the sensor signals to the central control unit. A monitoring area of a communication node is defined by the signal coverage of the communication node.
    • 一种用于响应于传感器信号在操作区域中控制至少一个环境参数(例如温度或空气质量)的控制系统。 该系统包括中央控制单元,致动器和移动传感器单元,以及放置在操作区域中的至少一个,优选多个通信节点。 通信节点中的每一个被配置为通过从位于其监视区域内的传感器单元无线地接收传感器信号并将传感器信号传送到中央控制单元来在监视区域中介在传感器单元和中央控制单元之间的信号。 通信节点的监视区域由通信节点的信号覆盖来定义。
    • 4. 发明申请
    • Method And System For Fluid Flow Control In A Fluid Network System
    • 流体网络系统中流体流量控制的方法和系统
    • US20150337849A1
    • 2015-11-26
    • US14653176
    • 2013-12-11
    • ABB RESEARCH LTD
    • Michael LundhJan Nyqvist
    • F04D27/00G05B15/02G05D7/06
    • F04D27/00E21F1/02G05B15/02G05D7/0682
    • It is presented a method of controlling fluid flow in a fluid network system by means of a plurality of fluid machines. The method comprises the steps of a) obtaining a respective current fluid flow rate associated with each fluid machine, b) obtaining a current fluid machine speed of each fluid machine, c) obtaining desired fluid flow rates in the fluid network system, d) determining a new fluid machine speed for each fluid machine based on the current fluid machine speeds and a change in the fluid machine speed required to obtain the desired fluid flow rates, wherein the change in the fluid machine speed is determined by minimizing a total fluid machine power which is a function dependent of the change in the fluid machine speed, the minimization being performed with constraints for fluid flow rate, fluid machine pressure and fluid machine speed, and e) controlling the speed of the plurality of fluid machines according to the new fluid machine speeds such that the minimum total fluid machine power in the fluid network system is attained. A computer program product and a control system are also presented herein.
    • 提出了一种通过多个流体机器控制流体网络系统中的流体流动的方法。 该方法包括以下步骤:a)获得与每个流体机器相关联的相应的当前流体流速,b)获得每个流体机器的当前流体机器速度,c)获得流体网络系统中的期望流体流速; d)确定 基于当前流体机器速度和获得所需流体流速所需的流体机器速度的变化,每个流体机器的新的流体机器速度,其中流体机器速度的变化通过使总流体机械功率最小化来确定 这是取决于流体机器速度变化的函数,最小化是用流体流速,流体机械压力和流体机器速度的约束进行的,以及e)根据新流体控制多个流体机器的速度 机器速度使流体网络系统中的最小总流体机械功率达到。 本文还介绍了计算机程序产品和控制系统。
    • 5. 发明授权
    • Method and system for fluid flow control in a fluid network system
    • 流体网络系统中流体流量控制的方法和系统
    • US09382798B2
    • 2016-07-05
    • US14096883
    • 2013-12-04
    • ABB Research Ltd.
    • Michael LundhJan Nyqvist
    • E21F1/00E21F1/02G05D7/06
    • E21F1/00E21F1/02G05D7/0617G05D7/0676G05D7/0682Y10T137/0318
    • A method of controlling fluid flow in a fluid network system by means of a plurality of fluid machines. The disclosure provides a simple empirical method of identifying network characteristics of the fluid network system used for providing the required fluid flow rate in the fluid network system utilizing minimal fluid machine power. The method includes the steps of determining a relation between a change in fluid machine speed and a corresponding change in fluid flow rate for each of the plurality of fluid machines empirically; determining a minimum total fluid machine power which provides a minimum required flow rate in the fluid network system based on a constraint involving the relation between the fluid flow rate and the corresponding fluid machine speed, and controlling a speed of the plurality of fluid machines such that the minimum total fluid machine power in the fluid network system is attained.
    • 一种通过多个流体机器控制流体网络系统中的流体流动的方法。 本公开提供了一种简单的经验方法,用于识别用于使用最小流体机械功率在流体网络系统中提供所需流体流速的流体网络系统的网络特性。 该方法包括以下步骤:经验地确定流体机器速度的变化与多个流体机器中的每一个的流体流速的相应变化之间的关系; 基于涉及流体流速和相应的流体机器速度之间的关系的约束,确定在流体网络系统中提供最小所需流量的最小总流体机械功率,以及控制多个流体机器的速度,使得 达到流体网络系统中最小总流体机械功率。