Closed-loop control device with adaptive fault compensation

US10539946B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Markus Stephan Haschka · Nürnberg, DE
• Philipp Rost · Nürnberg, DE
• Elmar Schäfers · Bad Mergentheim, DE
• Torsten Schür · Erlangen, DE
• Björn Seelinger · Erlangen, DE

Key dates

• Filing date: May 11, 2017
• Grant date: Jan 21, 2020
• Expiry date: Feb 27, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/45187
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A closed-loop control device to control a system to be controlled includes a front node, back node, external tapping point, controller and compensating circuit. The compensating circuit has an inner node, frequency filter, front buffer and back buffer. The front node determines a difference; the back node supplies an external sum signal. A setting device automatically suppresses use of the output signal of the front buffer, supplies the back buffer and the back node with a first excitation signal as the compensation signal and detects a first result signal produced by the first excitation signal. The first result signal is one of the control difference, internal sum signal, output filtered signal of the frequency filter or output signal of the front buffer. The setting device evaluates the first excitation signal and the first result signal, sets a parameter of the frequency filter and the second propagation delay.