This study focuses on analyzing the mechanical vibration characteristics of GIS bus misalignment using a simulation model based on the finite element method for a 252kV GIS.
The study shows that the GIS enclosure shell will produce vibration at the two times power frequency and high frequency, which provides an explanation for the high
Abstract The numerical simulations for predicting the operation noise of three-phase low voltage and heavy current busbar bridge under electromagnetic force are described. A 3D FEM
Abstract: In this paper, an experimental study is carried out on the vibration and noise of a pure electric bus under acceleration and uniform speed conditions. The vibration and noise data in the vehicle are
First, modal analysis is used to calculate the vibration modes and natural frequencies of the busbar systems. The influence of span length and phase-to-phase distance is discussed and thresholds for
This article examines high-frequency disturbances in interconnected converters within dc microgrids, focusing on the effects of electromagnetic interference (EMI) filters and long
In order to efficiently extend the frequency spectrum and collect vehicle-induced vibration from various vibration peaks, three distinct types of four sub-module multi-frequency electromagnetic vibration
The short-circuit withstanding performance of busbar system is one of the most important safety indexes for low-voltage (LV) switchgear. The resonance
This section presents the bus frequency estimation tech-niques considered in this paper, namely Center of Inertia (COI), Washout Filter (WF) and Frequency Divider (FD).
Abstract Switched reluctance machines (SRMs) benefit from simple and cheap design and inherent fault tolerance, but still suffer from torque ripple and noise, vibration and harshness (NVH) issues. This
Based on the above test results, it is concluded that under non-fault conditions, the frequency of vibrations in the GIS is twice that of both applied voltage and injected current.
The bus engine has a six-cylinder, four-stroke, and in-line arrangement. The triggered frequencies from the engine were operated in the range of 1–100 Hz, while the maximum engine
This paper presents an efficient analytical strategy for identifying the resonance sources and vibration transmission for a pure electric bus. The
Vibrations from the electric driveline move through the motor mount and frame to the driver''s seat track. The simulation results demonstrate this
For selecting P-type bus, the lateral branch is identified on which bus −18 (minimum voltage bus) is present. Then all the buses on this lateral are tested for P-type buses based on real power loss
Spectrograms of current, vibration and acoustic noise, as well as the evolution of loudness and sharpness are presented for DC-bus-ramp tests. It turns out that a higher DC-bus voltage combined
To explore the vibration response of the GIS busbar enclosure in a strong electric field, the electric force on the busbar enclosure was solved by the
Vibrations influence comfort, work ability, and if increasingly intense can affect human health. Allowable vibration exposure time referring to oscillatory comfort has a particular importance
In addition, if the electrodynamic force frequency of the bus is close to the natural frequency, it will cause mechanical resonance of the system. At the same time, the vibration of the busbar can also cause
In our work, we represent the determination of measurement conditions for harmful vibrations occurring during urban road transport of an
Electric buses are discussed in Zeng et al. (2019) where this article presents an analytical technique for the resonance sources of vibration
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