Method and device for closed-loop control of the electrode gap in a vacuum arc furnace
    1.
    发明授权
    Method and device for closed-loop control of the electrode gap in a vacuum arc furnace 有权
    用于真空电弧炉中电极间隙的闭环控制的方法和装置

    公开(公告)号:US09538587B2

    公开(公告)日:2017-01-03

    申请号:US13880545

    申请日:2011-10-06

    IPC分类号: H05B3/60 H05B7/148 H05B7/152

    摘要: A method and a device for closed-loop control of an electrode gap in a vacuum arc furnace subjects an electrode gap of a melting electrode from the surface of a melt material to closed-loop control as a function of a droplet short-circuit rate. For this purpose, a histogram of detected droplet short-circuits is created on the basis of at least one droplet short-circuit criterion. The histogram is subdivided into sub-areas, a characteristic sub-area of the histogram is selected for closed-loop control purposes. The electrode gap is subjected to closed-loop control on the basis of the droplet short-circuits which can be associated with the selected sub-area.

    摘要翻译: 用于真空电弧炉中的电极间隙的闭环控制的方法和装置使熔融电极的电极间隙从熔体材料的表面到作为液滴短路速率的函数的闭环控制。 为此,基于至少一个液滴短路标准产生检测到的液滴短路的直方图。 将直方图细分为子区域,选择直方图的特征子区域用于闭环控制目的。 基于可以与所选择的子区域相关联的液滴短路,对电极间隙进行闭环控制。

    Method and Device for Closed-Loop Control of the Electrode Gap in a Vacuum Arc Furnace
    2.
    发明申请
    Method and Device for Closed-Loop Control of the Electrode Gap in a Vacuum Arc Furnace 有权
    真空电弧炉电极间隙闭环控制方法与装置

    公开(公告)号:US20130279535A1

    公开(公告)日:2013-10-24

    申请号:US13880545

    申请日:2011-10-06

    IPC分类号: H05B7/152

    摘要: The invention relates to a method as well as a device for closed-loop control of the electrode gap in a vacuum arc furnace (10), wherein an electrode gap of a melting electrode from the surface of a melt material is subjected to closed-loop control as a function of a droplet short-circuit rate. For this purpose, a histogram (70) of detected droplet short-circuits (80) is created on the basis of at least one droplet short-circuit criterion (76), the histogram (70) is subdivided into sub-areas (72), a characteristic sub-area (74) of the histogram (70) is selected for closed-loop control purposes, and an electrode gap is subjected to closed-loop control on the basis of the droplet short-circuits (80) which can be associated with the selected sub-area (74).

    摘要翻译: 本发明涉及一种方法以及用于在真空电弧炉(10)中对电极间隙进行闭环控制的装置,其中熔融电极与熔体材料表面的电极间隙经受闭环 控制作为液滴短路速率的函数。 为此,基于至少一个液滴短路标准(76)创建检测到的液滴短路(80)的直方图(70),直方图(70)被细分为子区域(72) 选择直方图(70)的特征子区域(74)用于闭环控制目的,并且基于液滴短路(80)对电极间隙进行闭环控制,其可以是 与所选择的子区域(74)相关联。

    Device and Method for Filtering Supply Network Failures Out of an Electrode Signal in a Metallurgical Electric Remelting Process
    3.
    发明申请
    Device and Method for Filtering Supply Network Failures Out of an Electrode Signal in a Metallurgical Electric Remelting Process 审中-公开
    用于过滤冶金电重熔过程中电极信号供电网故障的装置和方法

    公开(公告)号:US20130282158A1

    公开(公告)日:2013-10-24

    申请号:US13880573

    申请日:2011-10-06

    IPC分类号: G05B23/02

    摘要: The invention relates to a method and device (40) for filtering supply network failures (84) out of an electrode signal (82) in a metallurgical electric remelting process, in particular for the electrode gap closed-loop control of a system for closed-loop control of an electrode gap (48) of a melting furnace (10). For this purpose, said device also comprises at least one electrode sensor device (44) for measuring an electrode signal (82), in particular electrode current and/or electrode voltage of the electrode (30), a network sensor device (46) for measuring a network signal, in particular network current and/or network voltage, and a filter device (50) for filtering network failures (84) of the network signal out of the electrode signal (82), such that an electrode signal (80) with no network failures can be emitted.

    摘要翻译: 本发明涉及一种用于在冶金电重熔过程中从电极信号(82)中过滤供电网络故障(84)的方法和装置(40),特别是用于封闭系统的系统的电极间隙闭环控制, 对熔化炉(10)的电极间隙(48)进行回路控制。 为此目的,所述装置还包括用于测量电极信号(82)的至少一个电极传感器装置(44),特别是电极(30)的电极电流和/或电极电压,网络传感器装置(46),用于 测量网络信号,特别是网络电流和/或网络电压;以及滤波器装置(50),用于从电极信号(82)中滤出网络信号的网络故障(84),使得电极信号(80) 没有发生网络故障。