Flicker reduction in electric arc furnaces by means of flicker prediction from the state determination in the initial phase of the smelting process

US10145612B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Arno Doebbeler · Herzogenaurach, DE
• Ralf Engels · Heroldsbach, DE
• Thomas Matschullat · Eckental, DE
• Wolfgang Meusel · Herzogenaurach, DE
• Detlef Rieger · Baldham, DE

Key dates

• Filing date: Jun 25, 2013
• Grant date: Dec 4, 2018
• Expiry date: Apr 10, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/20
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

Flicker values to be expected may be determined and achieve a high probability from suitable state and operating variables which are acquired during the first minutes in the initial smelting phase. In this way, flicker can effectively be reduced and kept below predefined limiting values. This is in particular suitable during steel production using electric arc furnaces.