Dynamic model experimental unit for simulating axial-radial three-dimensional air gap mixed eccentric fault

Abstract

The invention discloses a dynamic model experimental set for simulating axial-radial three-dimensional air gap mixed eccentric faults, comprising: a bottom fixed plate, a bottom fixed frame, a DC drive motor, a shaft coupling and a simulated generator, wherein the simulated generator includes : rotor and stator; the DC drive motor is connected to the rotor through a coupling; and both the DC drive motor and the analog generator are fixed on the bottom fixing frame; the bottom fixing frame is fixed on the bottom fixing plate; the two ends of the rotor pass through the bearing cover and the bearing The base is fixed on the bottom fixed frame; wherein, a bearing is installed between the bearing cover and the bearing base, and the rotor is installed on the bearing; and the bearing cover is fixed on the bearing base through the bearing cover fixing bolts. The dynamic model experimental unit for simulating axial-radial three-dimensional air gap mixed eccentric faults provided by the present invention can simulate different types and different degrees of dynamic model generator sets for three-dimensional air gap eccentric faults, which fills the gap in the current dynamic model experiment field for generators Defects and deficiencies in air gap eccentric fault simulation.

Description

technical field [0001] The invention relates to the technical field of simulated experimental units, in particular to a dynamic model experimental unit for simulating axial-radial three-dimensional air gap mixed eccentricity faults. Background technique [0002] As one of the important basic equipment for electric energy production, generator is related to the safe and stable operation of the entire power system. Due to many factors such as manufacturing and installation, most generators have air gap eccentricity. Air gap eccentricity is a common mechanical fault that specifies a degree of non-uniformity in the air gap between rotors (more on one side and less on the other). At present, the air gap eccentricity usually refers to the static eccentricity of the air gap, that is, the radial static eccentricity of the air gap, and there is little research on the faults of the radial dynamic eccentricity of the air gap. The radial dynamic eccentricity of the air gap refers to t...

AI Technical Summary

Problems solved by technology

Moreover, most of the current research on air gap radial eccentricity faults is based on theoretical calculations or computer simulations, and there are few experimental units that can simulate both air gap radial dynamic eccentricity and air gap axial eccentricity faults.

Images