Insulation test of wind turbine generator
Evaluation Method of Stator Insulation for Direct-drive Wind
Abstract: In this paper, a new procedure for the accelerated multi-factor aging test was firstly established for evaluating the insulation system of a wind turbine generator, in which,
Practical on-line partial discharge tests for turbine generators
Key Words: partial discharge, stator, insulation, motor, generator INTRODUCTION Over the past 15 years, many utilities have adopted partial discharge testing as a means of determining the
Evaluation method of insulation system for wind turbine generator
In this paper, a new procedure for the accelerated multi-factor aging test was firstly established for evaluating the insulation system of a wind turbine generator, in which,
A review on analysis and modeling of electrical machine insulation
These tests are very important for insulation testing which leads to the safety of our equipment and the system. & Wang, Y. (2014). Effects of accelerated repetitive impulse
Evaluation Method of Stator Insulation for Direct-drive Wind Turbine
Download Citation | On Oct 1, 2019, Qingyuan Liu and others published Evaluation Method of Stator Insulation for Direct-drive Wind Turbine Generator Based on Accelerated Multi-factor
Evaluation method of insulation system for wind turbine generator
In this paper, a procedure based on the accelerated multi-factor aging test was firstly established for evaluating the insulation system of offshore WTG. The specimens for modeling the stator
The effect of the marine environment on the stator insulation
It has become important to evaluate the stator insulation of wind turbine generator under repeat pulse voltages. Firstly, the lab test setup with the repeat-pulsed voltage up to
Study on multi-factor aging characteristics of stator insulation for
The stator insulation of wind turbine generator (WTG) would be subject to the repeated pulse voltage, thermal, mechanical and other environmental stresses. In this paper, the methods of
Partial discharge diagnostics in wind turbine insulation
The authors will concentrate, as best as they can, only on the influence and diagnostics of PD in relation to the wind turbines/generators. 3 Partial discharges in wind generator insulation PD is
Partial discharge diagnostics in wind turbine insulation
The purpose of this paper is to review work undertaken on partial discharges and their influence on the insulation of wind turbines. No matter whether partial discharges can be considered as the main cause of deterioration of the
PD detection in inter-turn insulation of wind turbine generator
The inter-turn insulation of stator winding for wind turbine generator (WTG) usually suffers the repetitive impulse over-voltages when the converter is connected to the winding terminals. The
Inverter-embedded DFIG Rotor Winding Insulation Testing for Wind Energy
Remote, automated monitoring of wind generators is crucial considering that wind turbines are prone to failure due to the harsh operating environment, and difficult to
Evaluation method of insulation system for wind turbine generator
• The effects of the marine environment, such as large temperature variations, high humidity, and heavy salt mist on the stator insulation system of offshore wind turbine
5 FAQs about [Insulation test of wind turbine generator]
Do wind generators need rotor insulation testing?
However, testing rotor insulation is difficult and costly due to the limited accessibility of wind generators as they are installed at remote locations inside the nacelle. Therefore, remote and automated insulation testing can help improve the reliability and reduce maintenance cost of wind generators.
Why do wind turbine manufacturers need independent type testing?
So turbine manufacturers have to show their turbines work as required under all conditions. Independent type testing provides that reassurance and credibility – by proving your turbine meets all relevant international standards. DNV provides efficient and effective wind turbine type testing.
Can rotor winding insulation be tested for DFIGs?
In this paper, a new approach for testing the integrity of rotor winding insulation for DFIGs is proposed. The main idea is to use the rotor-side inverter to perform off-line insulation testing whenever the wind generator is stopped.
Can a rotor-side inverter test a wind generator off-line?
The main idea is to use the rotor-side inverter to perform off-line insulation testing whenever the wind generator is stopped. New test methods for off-line 1) partial discharge (PD) detection based on impulse voltage excitation and 2) capacitance (C) and dissipation factor (DF) testing based on common mode voltage excitation are proposed.
Does rotor winding insulation fail in doublyfed induction generators?
Abstract: Failure in the rotor winding insulation of doublyfed induction generators (DFIG) is common due to the harsh environment and operating stresses. However, testing rotor insulation is difficult and costly due to the limited accessibility of wind generators as they are installed at remote locations inside the nacelle.