-
公开(公告)号：US20140130636A1
公开(公告)日：2014-05-15
申请号：US14158497
申请日：2014-01-17
申请人： Michael Lundh , Xiaojing Zhang
发明人： Michael Lundh , Xiaojing Zhang
IPC分类号： F27D19/00
CPC分类号： H05B7/144 , C21C5/5211 , C21C5/5217 , C21C2005/5288 , C21C2300/06 , F27B3/28 , F27D19/00 , F27D21/00 , F27D27/00 , H05B7/148 , H05B7/18 , Y02P10/216 , Y02P10/256 , Y02P10/259 , Y02P10/286
摘要： A method of controlling a melting process in an electric arc furnace for melting a metallic material. By means of the present disclosure it is possible to minimize desired process properties such as the melting time or the total power consumption of the melting process. The method includes the steps of receiving or collecting measured data of at least one process variable, determining the current state of the process, performing an optimization of the melting process, determining a process input based on the result of the optimization, and controlling the melting process by means of the process input. A control system is also presented herein.
摘要翻译： 一种控制电弧炉中熔融金属材料熔化过程的方法。 通过本公开，可以最小化期望的工艺特性，例如熔化过程的熔化时间或总功率消耗。 该方法包括以下步骤：接收或收集至少一个过程变量的测量数据，确定过程的当前状态，执行熔化过程的优化，基于优化结果确定过程输入，以及控制熔化 通过过程输入过程。 本文还介绍了一种控制系统。
-
2.发明申请公开(公告)号：US20140305261A1
公开(公告)日：2014-10-16
申请号：US14249028
申请日：2014-04-09
CPC分类号： F27D19/00 , C21C5/5211 , C21C2005/5276 , C21C2005/5288 , C22B4/08 , F27B3/085 , F27B3/28 , F27D27/00 , F27D2019/0003 , F27D2019/0006 , Y02P10/216
摘要： A method and device for controlling a melting and refining process in an electric arc furnace for melting a metal, wherein the electric arc furnace includes molten and solid metal and a slag layer on the surface of the molten metal, wherein an electromagnetic stirrer is arranged for stirring the molten metal. The method includes calculating/determining masses of the molten and solid metal at a point of time, wherein the calculation is based on initial values of the molten and solid metal, an arc power supplied to the electric arc furnace, and temperatures of the molten and solid metal, determining a stirring power based on the calculated/determined masses, and supplying the determined stirring power to the electromagnetic stirrer.
摘要翻译： 一种用于控制用于熔化金属的电弧炉中的熔化和精炼过程的方法和装置，其中电弧炉包括熔融和固体金属以及在熔融金属表面上的炉渣层，其中电磁搅拌器设置用于 搅拌熔融金属。 该方法包括在时间点计算/确定熔融和固体金属的质量，其中所述计算基于熔融和固体金属的初始值，供应到电弧炉的电弧功率，以及熔融和固体金属的温度 固体金属，基于计算出的/确定的质量确定搅拌功率，并将确定的搅拌力提供给电磁搅拌器。
-
公开(公告)号：US08888888B2
公开(公告)日：2014-11-18
申请号：US14158497
申请日：2014-01-17
申请人： Michael Lundh , Xiaojing Zhang
发明人： Michael Lundh , Xiaojing Zhang
IPC分类号： C21C5/00 , F27D19/00 , H05B7/00 , F27D3/00 , F27D21/00 , F27B3/28 , C21C5/52 , H05B7/148 , F27D27/00
CPC分类号： H05B7/144 , C21C5/5211 , C21C5/5217 , C21C2005/5288 , C21C2300/06 , F27B3/28 , F27D19/00 , F27D21/00 , F27D27/00 , H05B7/148 , H05B7/18 , Y02P10/216 , Y02P10/256 , Y02P10/259 , Y02P10/286
摘要： A method of controlling a melting process in an electric arc furnace for melting a metallic material. By means of the present disclosure it is possible to minimize desired process properties such as the melting time or the total power consumption of the melting process. The method includes the steps of receiving or collecting measured data of at least one process variable, determining the current state of the process, performing an optimization of the melting process, determining a process input based on the result of the optimization, and controlling the melting process by means of the process input. A control system is also presented herein.
摘要翻译： 一种控制电弧炉中熔融金属材料熔化过程的方法。 通过本公开，可以最小化期望的工艺特性，例如熔化过程的熔化时间或总功率消耗。 该方法包括以下步骤：接收或收集至少一个过程变量的测量数据，确定过程的当前状态，执行熔化过程的优化，基于优化结果确定过程输入，以及控制熔化 通过过程输入过程。 本文还介绍了一种控制系统。
-
公开(公告)号：US20150003488A1
公开(公告)日：2015-01-01
申请号：US14490366
申请日：2014-09-18
申请人： Michael Lundh , Xiaojing Zhang
发明人： Michael Lundh , Xiaojing Zhang
CPC分类号： H05B7/144 , C21C5/5211 , C21C5/5217 , C21C2005/5288 , C21C2300/06 , F27B3/28 , F27D19/00 , F27D21/00 , F27D27/00 , H05B7/148 , H05B7/18 , Y02P10/216 , Y02P10/256 , Y02P10/259 , Y02P10/286
摘要： Disclosed is a control system for a melting process in an electric arc furnace for melting a metallic material. By means of the present disclosure it is possible to minimize desired process properties such as the melting time or the total power consumption of the melting process. The system includes a processing unit adapted for receiving or collecting measured data of at least one process variable, determining the current state of the process, performing an optimization of the melting process, determining a process input based on the result of the optimization, and controlling the melting process by means of the process input. A method is also presented herein.
摘要翻译： 公开了一种用于熔化金属材料的电弧炉中熔化过程的控制系统。 通过本公开，可以最小化期望的工艺特性，例如熔化过程的熔化时间或总功率消耗。 该系统包括处理单元，适于接收或收集至少一个过程变量的测量数据，确定过程的当前状态，执行熔化过程的优化，基于优化结果确定过程输入，以及控制 通过过程输入的熔化过程。 本文还给出了一种方法。
-
公开(公告)号：US20140094105A1
公开(公告)日：2014-04-03
申请号：US14096883
申请日：2013-12-04
申请人： Michael Lundh , Jan Nyqvist
发明人： Michael Lundh , Jan Nyqvist
CPC分类号： E21F1/00 , E21F1/02 , G05D7/0617 , G05D7/0676 , G05D7/0682 , Y10T137/0318
摘要： 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.
摘要翻译： 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。
-
6.发明授权公开(公告)号：US06658304B1
公开(公告)日：2003-12-02
申请号：US09679627
申请日：2000-10-05
申请人： Mats Molander , Michael Lundh
发明人： Mats Molander , Michael Lundh
IPC分类号： G05B1302
CPC分类号： G05B13/048
摘要： A computer based method of controlling an industrial process, including the steps of measuring the values of at least one process variable (y1, y2), and predicting future deviations of one process variable (y1) with regard to the measured value of said at least one process variable (y1, y2), and providing a control signal (uFB) based on said predictions, and by means of a first control law. The method comprises the further steps of measuring a measurable disturbance (d) in the process, predicting future deviations of said process variable (y1) with regard to said disturbance but without regard to the measured value of said at least one process variable (y1, y2), and providing a control signal (ud) based on said predictions by means of a second control law.
摘要翻译： 一种控制工业过程的基于计算机的方法，包括以下步骤：测量至少一个过程变量（y1，y2）的值，以及预测关于所述至少一个过程的测量值的一个过程变量（y1）的未来偏差 变量（y1，y2），并且基于所述预测提供控制信号（uFB），并且借助于第一控制定律。 该方法包括以下步骤：在该过程中测量可测量的干扰（d），预测所述过程变量（y1）相对于所述扰动的未来偏差，但不考虑所述至少一个过程变量（y1，y2）的测量值 ），并且通过第二控制规律基于所述预测提供控制信号（ud）。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.017 秒)