公开(公告)号：US3952139A

公开(公告)日：1976-04-20

申请号：US534831

申请日：1974-12-20

申请人： Peter Burkle ,  Wolfgang Timpe ,  Friedrich Werner Thomas

发明人： Peter Burkle ,  Wolfgang Timpe ,  Friedrich Werner Thomas

IPC分类号： C22B9/18 ,  G05F1/44 ,  H05B3/00 ,  H05B7/148

CPC分类号： G05F1/44 ,  C22B9/18 ,  H05B3/0023

摘要： The invention concerns a converter arrangement for electrode melting furnaces, particularly for electric slag remelting of metals. A current regulator in the form of a PI controller is associated with the converter arrangement. The former is influenced by an actual current value, a reference current value, and additionally, by a control quantity. The control quantity replaces the current regulation of the regulator by a voltage control in dependence on periodic or aperiodic conditions which may be due to operational causes or to trouble and interfere with the melting process in the furnace. More particularly, for the duration of such conditions, the control quantity causes the output voltage of the regulator, which voltage acts on the control unit feeding the converter, to be limited upward to an adjustable value.

摘要翻译： 本发明涉及用于电极熔化炉的转换器装置，特别是用于金属的电渣重熔。 PI控制器形式的电流调节器与转换器装置相关联。 前者受实际电流值，参考电流值以及控制量的影响。 控制量通过电压控制取代调节器的电流调节，这取决于可能由操作原因引起的周期性或非周期性状况，或者是故障并干扰炉中的熔化过程。 更具体地说，在这种条件的持续时间内，控制量使调节器的输出电压（该电压作用在馈送转换器的控制单元上）被限制在可调整的值上。