Nonlinear resonance model-based active filtering crane steel rope resonance elimination control method

US11472676B2 · kind B2 · utility

Assignees

• WUHAN UNIVERSITY OF SCIENCE AND TECHNOLOGY · CN
• Sinosteel Wuhan Safey & Environment Protection Research · CN

Inventors

• Huikang Liu · 红钢城街道, CN
• Sen Lin · Shanghai, CN
• Xianhua Wang · Beijing, CN
• Qiangguang Lu · 红钢城街道, CN
• Lin CHAI · 红钢城街道, CN
• Yikang Zu · 红钢城街道, CN
• Zhou Zhou · San Diego, US
• Dongtian Liu · 红钢城街道, CN
• Qing Yu · Rochester, US
• Weijia Wang · Zhongshan, CN

Key dates

• Filing date: Jul 29, 2021
• Grant date: Oct 18, 2022
• Expiry date: Jul 29, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F17/14
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A nonlinear resonance model-based active filtering crane steel rope resonance elimination control method, including: constructing a two-dimensional dynamic model of a bridge crane according to a Lagrange's equation; constructing a steel wire rope-motor nonlinear resonance model to detect a harmonic; and eliminating the harmonic by means of active filtering. The present disclosure makes in-depth study on positioning of a crane and intelligent control of an anti-swing and resonance elimination control system and uses active filtering to eliminate resonance between a heavy object and the steel wire rope, thereby reducing a swinging angle and achieving the rapid resonance elimination and anti-swing effect. The active filtering technology can quickly and effectively detect a resonance current so as to effectively suppress resonance between the heavy object and the steel wire rope, and further helps a controller quickly and accurately position a trolley to further improve anti-swing performance.