Development of a new off-line test procedure for low voltage rotating machines fed by adjustable speed drives (ASD)

Bidan, Pierre; Lebey, Thierry; Neacsu, C.

doi:10.1109/tdei.2003.1176584

Cited by 25 publications

(10 citation statements)

References 12 publications

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“…Because of noise interference during the actual measurement, a high-pass filter was added to increase the accuracy of the measured results. In addition, for the extracted discharge signal to have a longer shock effect and become more easily identifiable, the highpass filter was produced using a passive filter [11]. The cut-off frequency fc (6 MHz) The actual test results for the high-pass filter indicate that the output signal was zero at 34 MHz, with only a small fraction of the 6MHz signal passing through (Fig.…”

Section: High-pass Filter Designmentioning

confidence: 99%

Using chaos eye method to diagnose power capacitors

Wang

Hsieh

et al. 2017

2017 International Conference on Applied Electronics (AE)

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This study focused on the measurement and diagnostic analysis of partial discharge in power capacitors operating under prolonged periods of high voltage. An off-line test was conducted on two power capacitors, which were subjected to defect preprocessing before the experiment. The partial discharge test of the terminal to the outer casing was carried out using a 24kV high voltage transformer. The voltage of the power discharge, after which the voltage signals of the test voltage and the partial discharge were extracted. The characteristics of the discharge signal were identified using an oscilloscope. The chaos synchronization detection method was then employed to establish a chaotic error scatter plot for the discharge voltage he gravity (chaos eye) of the error scatter plot was used as the fault diagnosis feature. The advantage of this approach was the drastic reduction of the amount of data for feature extraction, and the effective detection of the slight discharge signal variation in power capacitors, thereby anticipating their operation and enabling the implementation of preemptive contingency measures to avoid major accidents.

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Section: High-pass Filter Designmentioning

confidence: 99%

Using chaos eye method to diagnose power capacitors

Wang

Hsieh

et al. 2017

2017 International Conference on Applied Electronics (AE)

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“…But, at the moment, no real "on line" PD testing and/or procedures have been successfully qualified [9]. The aim of our work is to develop an "on line" test allowing detecting PD in an electrical vehicle.…”

Section: Introductionmentioning

confidence: 99%

Partial discharge monitoring in twisted pair using non-intrusive sensors: Numerical analysis

Billard

Lebey

Castelan

et al. 2013

2013 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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This paper deals with partial discharge (PD) measurements in twisted pair fed, in parallel, by a PWM inverter driving an electric motor. PD detection is carried out while the motor is running using a non-intrusive antenna sensor. Data are randomly acquired while the powertrain is running. Then, two alternative numerical signal processing methods based on energy spectral density are proposed to classify signals with or without PDs. The first method uses spectral features chosen by human experts. The second method automatically derives optimum features by using linear discriminant analysis.

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“…Its formulation relates to an interesting technique applicable to causal operator realizations which is well developed in the context of time operators. One of the main advantages of this approach is its low computational cost; see the papers by G. Montseny et al [16], [24], [13], [2], [3] and by D. Matignon et al [10], [11], [22] for representations of various pseudodifferential operators and their approximation. C. Lubich et al [21], [20], [17], [5], [26], [18] apply a similar idea to convolution operators and develop optimized numerical methods.…”

Section: Introductionmentioning

confidence: 99%

Diffusive realizations for solutions of some operator equations: The one-dimensional case

Lenczner¹,

Montseny²,

Yakoubi³

2012

Math. Comp.

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Abstract. In this paper we deal with the derivation of state-realizations of linear operators that are solutions to certain operator linear differential equations in one-dimensional bounded domains. We develop two approaches in the framework of diffusive representations: one with complex diffusive symbols; the other with real diffusive symbols. Then, we illustrate the theories and develop numerical methods for a Lyapunov equation arising from optimal control theory of the heat equation. A practical purpose of this approach is real-time computation on a semi-decentralized architecture with low granularity.

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Development of a new off-line test procedure for low voltage rotating machines fed by adjustable speed drives (ASD)

Cited by 25 publications

References 12 publications

Using chaos eye method to diagnose power capacitors

Using chaos eye method to diagnose power capacitors

Partial discharge monitoring in twisted pair using non-intrusive sensors: Numerical analysis

Diffusive realizations for solutions of some operator equations: The one-dimensional case

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