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METHOD FOR STABILIZING ELECTRIC LINE IN CASE OF REACTIVE LOAD VARIATIONS AND DEVICE FOR COMPENSATING REACTIVE LOAD
METHOD FOR STABILIZING ELECTRIC LINE IN CASE OF REACTIVE LOAD VARIATIONS AND DEVICE FOR COMPENSATING REACTIVE LOAD
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机译：在无功负载变化情况下稳定电线的方法和无功负载补偿装置
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摘要
FIELD: electrical engineering. SUBSTANCE: DC arc furnace 8 causes in operation unwanted variations of reactive power corrected by means of condenser 31. AC set-point element 28 of condenser 31 is controlled depending on firing angle stabilizing signal (st) controlled by functional sensor 26 responding to desired reactive power signal (Qsollg), actual reactive power signal (Qg), and signal (QF) of filter reactive power corresponding to reactive power of filter circuits 4, , 4'. Desired reactive power signal (Qsollg) depends on total current (i33) which, apart from actual current (iist) of arc furnace 8, incorporates current through filter circuits 4, 4' and current through auxiliary devices that may be used. EFFECT: improved reactive-power correction. 1 dwg
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机译：领域：电气工程。物质：直流电弧炉8在运行时会引起不需要的通过电容器31校正的无功功率变化。电容器31的交流设定值元件28取决于由控制的点火角稳定信号（ st ）功能传感器26响应于期望的无功功率信号（Q sollg ），实际无功功率信号（Q g ）和信号（Q F ）与滤波器电路4、4'的无功功率相对应的滤波器无功功率的变化。期望的无功功率信号（Q sollg ）取决于总电流（i 33 ），除了电弧炉的实际电流（i ist ）图8中的电路包括通过滤波器电路4、4'的电流和通过可以使用的辅助设备的电流。效果：改进了无功功率校正。 1载重吨
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