Decoupling and adjustment of forces in an electromagnetic guiding system with six degrees of freedom

Abstract

PurposeThe purpose of this paper is to describe the derivation of an adjustment directive for the non‐linear and coupled forces of a high‐comfort elevator guiding system based on so‐called electromagnetic ω‐actuators.Design/methodology/approachThe derivation of the adjustment directive contains a coordinate transformation from local forces and torques to global quantities.FindingsIt is demonstrated that the derived system is able to operate the guiding system of the elevator car. Measurement results show a well running system in face of several mutual influences on the actuating forces.Practical implicationsThe results presented offer the opportunity to increase the riding comfort and decrease the deterioration of high‐speed elevator systems. It is possible to apply the proposed system to ropeless elevators and to conventional elevator systems as well.Originality/valueThe methods developed and proved in this paper grant an effective way to control magnetically levitated systems with complex actuator topologies.

High-speed elevator car system semi-active horizontal vibration reduction method based on the improved particle swarm algorithm

“…Cao et al (2020) proposed an active control strategy for HSEC horizontal vibration based on linear matrix inequality (LMI) and analyzed the vibration acceleration under the condition of no load and full load. By establishing the six-degree freedom model of car system, Demenko et al (2011) proposed a method to convert the local regulation variable to the virtual global current. The results showed a well running system in the face of several mutual influences on the actuating forces.…”