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Generator circulating wind end vibration

Condition monitoring and vibration analysis of wind turbine

Wind turbine vibration signals often have nonstationary stochastic features in addition to complex mode coupled vibrations and are often corrupted by the noise from the

Bladeless wind turbine generates electricity by vibrating with

When people think of wind power, most imagine rows of giant turbines stretching across wide expanses of land. David Yáñez envisions something else entirely. Yáñez is co

Self-powered system by a suspension structure-based triboelectric

The hybrid generator is designed as an innovative device integrating a vibration-driven piezoelectric energy generator and damper (VD-PEGD) based on the damper structure,

Impact of Stator Interturn Short Circuit Position on End

This article presents a comprehensive analysis on the end winding vibration characteristics due to different stator inter-turn short circuit (SISC) positions in synchronous generators. Different

Monitoring of generator end winding vibrations

MEASURING SENSORS OF GENERATOR END WINDING VIBRATION For the measuring of generator end winding vibration broadband measuring fiber optic accelerometer are usually

An experimental study on a wind-induced vibration power generator

This paper presents a vortex‐induced vibration (VIV)‐based piezoelectric energy harvester that performs well for all wind directions, a so‐called omnidirectional wind energy

Comprehensive Review of the Effects of Vibrations on Wind

Wind turbine is a machine that is powered by the wind; it is designed to convert the kinetic energy from the wind into mechanical energy and the produces electricity.

Vibration Signature of Generator-Side Converter Faults for Wind

To verify the vibration signature induced by generator-side converter faults and the effectiveness of proposed diagnosis approach, a generator-side converter experimental

Experimental Investigation of Bladeless Power

The power harvester unit from flow-induced vibration (FIV) was designed to harness energy from low flow velocity based on the magnetostrictive effect on the galfenol (Fe – Ga alloy) strip

A comprehensive study on stator vibrations in synchronous generators

AIR-gap eccentricity, which refers to the non-uniform air–gap space between the rotor and the stator, is a common mechanical fault in both generators and motors [1]

Comprehensive Review of the Effects of Vibrations on Wind

According to Hossain et al. [], said that wind turbine is greatly subjected to various fault on the mechanical system during operation which can be tired to the issues of

Structural control and vibration issues in wind turbines: A review

The operation of the blade pitch can be divided into three regions [9]: region 1 is at low wind speed, lower than the starting point; region 2 is when the wind speed passes the

SOLVING STATOR END-WINDING DUSTING AND RESONANCE

Generator stator end winding resonance and high levels of end winding vibration are a significant industry issue that affects many generators. The authors will discuss in this paper, two units

Vibration testing and controlling for wind turbine generator

Keywords:–– Wind turbine generator, vibration testing, signal process, vibration controlling I. INTRODUCTION Fig.1 The simple structure diagram of the generator a) The drive end b)

Experimenting With Vibratory Wind Generators

We''ve all got a pretty good mental image of the traditional wind-powered generator: essentially a big propeller on a stick. Some might also be familiar with vertical wind

Impact of 2D and 3D Rotor Eccentricity on End Winding

Investigations on static air-gap eccentricity (SAGE) faults about magnetic field variations, current/ voltage changes, and stator/ rotor vibrations have been widely carried out,

Torsional and lateral vibration analysis of wind turbine generator

Bearings are critical constituents of wind turbine generators, serving to locate and support the rotational components in the generator [1], [2], [3].During extended operation, the

Review of Vibration Control Methods for Wind

The installation of wind energy increased in the last twenty years, as its cost decreased, and it contributes to reducing GHG emissions. A race toward gigantism characterizes wind turbine development, primarily

Electromagnetic Force and Mechanical Response of Turbo‐Generator End

By calculating the electromagnetic force and mechanical response of the generator end winding, the maximum stress and vibration characteristics can be obtained

Vibration response on the rod of vortex bladeless wind power generator

Vortex-bladeless wind power generators are revolutionary concepts that use wind vortex-induced vibration to generate electricity through oscillation and vibration. This

Finite element modelling of turbine generator stator end

In normal operation, electromagnetic vibration of a stator core [1] and the electromagnetic forces created by current ﬂowing in stator bars excite the end windings at twice the power frequency

OCK/MR.B-KING End-Winding Vibration in Two-Pole Machines

on the recent increase in end-winding vibration issues [5]–[10]. In 2010, FM Global, a large insurance company used by generating stations, presented data indicating that, for the period

Monitoring of generator end winding vibrations

This allows the capability to generate a complete spatial harmonic of the end winding vibration for one period and separates the generated total vibration into circulating and standing waves.

Analysis of generator vibration characteristic on rotor winding

Using practically acquired MJF-30-6 generator vibration data in rotor winding inter-turn short circuit fault, the results of verification show that the analysis is correct.

Electrical discharge in generator bearings.

Causes of electrical fluting discharge in wind turbine generator bearings and solutions. the bearings often end up carrying the electrical load to the ground because stray

Impact of Stator Interturn Short Circuit Position on End

This paper presents a comprehensive analysis on the end winding vibration characteristics due to different stator inter-turn short circuit (SISC) positions in synchronous

Generator end winding vibration monitoring | Request PDF

The principal focus of this paper is the development of regression based models for the prediction of vibration levels in the end windings of a 288 MVA gas turbine generator.

A Study on Deep Learning-based Fault Diagnosis using Vibration

Download Citation | On Jun 30, 2022, Sung-Mok Jung and others published A Study on Deep Learning-based Fault Diagnosis using Vibration Data of Wind Generator | Find, read and cite

Generator End Winding Vibration Sensors

Generator End Winding Vibration Sensors for Online Condition Monitoring Fortunately, GE has significant experience in the installation of bespoke high-voltage (HV) protected

Generator circulating wind end vibration [PDF]

6 FAQs about [Generator circulating wind end vibration]

Why do generator end windings vibrate?

The vibration of generator end windings has been a topic of concern since the beginning of power generation. Current flowing in the rotor and stator give rise to magnetic fields. The resulting forces lead to vibration within the stator core, but more seriously at the stator end windings and their support structures.

Is there a standard for generator end winding vibration?

Currently, there is not a set of established industry standards or acceptance criterion for generator end winding vibration. There are many differing points of view within the power industry concerning the sources of vibration, methods of analysis, and solutions.

Why do generators need end windings?

The end-windings of large generators are exposed to some of the largest vibrations among all machines. The stability of these end windings has a major impact on the reliability of generators.

Can resonant vibration cause a generator end winding failure?

resonant vibration condition can lead to movement and forces that can compromise the stator bar insulation and possibly cause a complete failure of the generator. Currently, there is not a set of established industry standards or acceptance criterion for generator end winding vibration.

How to measure generator end winding vibration?

VIBRATION For the measuring of generator end winding vibration broadband measuring fiber optic accelerometer are usually used, which are fixed there with the radial measuring direction (s. Fig. 1). These sensors must satisfy the exactly Fig. 1. Optical accelerometer and fixing inside the generator

How does turbine rotor affect vibration behavior of generator end winding?

turbine rotor on vibration behavior of generator end winding in a bracket bearing generator is demonstrated (s. Fig. 5). It is obvious, that the state before balancing (thin line) has significantly changed after balancing (thick line) for the same load point. Especially 50 Hz standing waves show a great change of all modes.