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1.发明授权VORRICHTUNG UND VERFAHREN ZUR REGELUNG EINES LICHTBOGENOFENS IN DER ANFANGSPHASE EINES SCHMELZPROZESSES 有权用于在融化过程的初始阶段控制电弧闪光的装置和方法
公开(公告)号：EP2910086B1
公开(公告)日：2017-12-13
申请号：EP13776457.7
申请日：2013-10-09
CPC分类号： H05B7/148 , F27D19/00 , F27D2019/0037 , H05B7/144 , Y02P10/256 , Y02P10/259
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2.发明公开
公开(公告)号：EP2910086A1
公开(公告)日：2015-08-26
申请号：EP13776457.7
申请日：2013-10-09
CPC分类号： H05B7/148 , F27D19/00 , F27D2019/0037 , H05B7/144 , Y02P10/256 , Y02P10/259
摘要： The invention relates to a device and method for controlling an electric arc furnace (10) in the initial phase of a melting process. A sensor (16) for measuring the actual current and a sensor (15) for measuring the actual flowing current are provided in each branch (7) of the electric arc furnace (10). The actual impedance (Z
actual ) is calculated time-dependently by means of the control and regulating unit (30). A load tap changer (20) is associated with a furnace transformer (6) having a primary side (6P) and a secondary side (6S), said load tap changer (20) being embodied as a semi-conductor step switch. Said semiconductor step switch (20) carries out a clock pulse rate of several milliseconds.-
公开(公告)号：EP3417523B1
公开(公告)日：2019-12-18
申请号：EP17702357.9
申请日：2017-01-30
发明人： FENG, Haijun , BABIZKI, Alexei
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公开(公告)号：EP3042428B1
公开(公告)日：2019-05-22
申请号：EP14750734.7
申请日：2014-08-13
发明人： BABIZKI, Alexei , FENG, Haijun
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5.发明授权
公开(公告)号：EP2910084B1
公开(公告)日：2017-12-13
申请号：EP13774180.7
申请日：2013-10-09
CPC分类号： H05B7/148 , H05B7/144 , Y02P10/256 , Y02P10/259
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6.发明公开
公开(公告)号：EP2910085A1
公开(公告)日：2015-08-26
申请号：EP13776456.9
申请日：2013-10-09
CPC分类号： H05B7/144 , G05F1/20 , Y02P10/256 , Y02P10/259
摘要： The invention relates to a device and a method for the process-based power control of an electric arc furnace (10). Several types of sensors (15, 16, 17) detect current operational parameters of the electric arc furnace (10) in accordance with time. A control and regulating unit (30) determines, from the measurement values, whether it is necessary to activate, by means of a semiconductor switch (20), other winding taps (T
SI ,...,T
SN ) on the primary side (6P) of the furnace transformer (6) in order to vary the electric power to prevent thermal or mechanical damage to the electric arc furnace (10).-
7.发明公开
公开(公告)号：EP3417523A1
公开(公告)日：2018-12-26
申请号：EP17702357.9
申请日：2017-01-30
发明人： FENG, Haijun , BABIZKI, Alexei
摘要： The invention relates to a method for controlling a variable transformer (13) with an adjustable transmission ratio, which is connected between a first and a second AC network (11, 12), wherein: the pointer data from pointers of the first and/or second AC network is determined; for the first AC network, an equivalent circuit diagram with equivalent circuit diagram parameters is determined; for the second AC network, a load model with load model parameters is determined; the equivalent circuit diagram parameters and the load model parameters are determined from the pointer data; if a switch is to be made to a desired transmission ratio, a working point (A') of the second AC network is predicted for the desired transmission ratio; for the predicted working point, a stability criterion is verified in the second AC network; and if the stability criterion is met, the switch is made to the desired transmission ratio is used, but not otherwise.
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8.发明授权VORRICHTUNG UND VERFAHREN ZUR PROZESSGEFÜHRTEN LEISTUNGSREGELUNG EINES LICHTBOGENOFENS 有权一种用于光栅处理功率控制的装置和方法
公开(公告)号：EP2910085B1
公开(公告)日：2017-12-13
申请号：EP13776456.9
申请日：2013-10-09
CPC分类号： H05B7/144 , G05F1/20 , Y02P10/256 , Y02P10/259
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9.发明公开VORRICHTUNG UND VERFAHREN ZUR STEUERUNG DER STABILITÄT EINES ORTSNETZES MIT EINEM REGELBAREN ORTSNETZTRANSFORMATOR 审中-公开装置和一种用于控制本地网络的稳定性与可调节当地的电力变压器
公开(公告)号：EP3042428A1
公开(公告)日：2016-07-13
申请号：EP14750734.7
申请日：2014-08-13
发明人： BABIZKI, Alexei , FENG, Haijun
摘要： The invention relates to a device (1) and a method for controlling the stability of a local network (3). The local network (3) comprises a plurality of outgoing circuits (4
1 , 4
2 ,..., 4
M ,), each having at least one load (5) and/or at least one decentralised energy generation system (6). Said device is provided with an on-load tap-changer (14) for adjusting an output voltage of the local network transformer (10). The device is characterised in that a unit (16) for measuring current, connected to at least one of the plurality of outgoing circuits (4
1 , 4
2 ,..., 4
M ,), and a unit (18) for measuring voltage, connected to a busbar (8) of the local network (3), are arranged in a transformer housing (20).-
10.发明公开VORRICHTUNG UND VERFAHREN ZUR REDUZIERUNG VON NETZRÜCKWIRKUNGEN BEIM BETRIEB EINES LICHTBOGENOFENS 有权装置和方法用于降低功耗的效果BACK在操作矿热炉
公开(公告)号：EP2910084A1
公开(公告)日：2015-08-26
申请号：EP13774180.7
申请日：2013-10-09
CPC分类号： H05B7/148 , H05B7/144 , Y02P10/256 , Y02P10/259
摘要： The invention relates to a device and a method for reducing network reactions when an electric arc furnace (10) is in operation. Said electric arc (10) comprises three branches (7) respectively comprising an electrode (4). A sensor (15) for measuring the actual flowing current and a sensor (16) for measuring the actual applied voltage are provided in each branch. The invention also relates to a control and regulating unit (30) which calculates an electric actual variable (E
actual1 , E
actual2 , E
actual3 ). A semi-conductor step switch (20) is associated with the furnace transformer (6) such that a desired current (l
s1 , I
s2 , I
s3 ) in each branch (7) can be adjusted by suitably selecting three desired winding taps (T
DESIRED1 , T
DESIRED2 , T
DESIRED3 ) on the primary side (P) of the furnace transformer (6).
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