The latest advances in electric and electronic aircraft technologies from the point of view an "all-electric" are presented herein. Specifically, we describe concept a "more aircraft" (MEA), which involves removing need for on-engine hydraulic power generation bleed air off-takes, increasing use electronics starter/generation system main engine. Removal engine pumps requires fully-operative electrical actuators mastery flight control architecture. paper presents general overview drives MEA,...

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> Motor-current-signature analysis has been successfully used in induction machines for fault diagnosis. The method, however, does not always achieve good results when the speed or load torque is constant, because this causes variations on motor-slip and fast Fourier transform problems appear due to a nonstationary signal. This paper proposes new method motor detection, which analyzes spectrogram...

This paper presents a novel method to diagnose demagnetization in permanent-magnet synchronous motor (PMSM).Simulations have been performed by 2-D finite-element analysis order determine the current spectrum and magnetic flux distribution due this failure.The diagnostic just based on signature can be confused eccentricity failure because harmonic content is same.Moreover, it only applied under stationary conditions.In overcome these drawbacks, used upon Hilbert-Huang transform.It represents...

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> This paper presents the results of our study permanent-magnet synchronous motor (PMSM) running under demagnetization. We examined effect demagnetization on current spectrum PMSMs with aim developing an effective condition-monitoring scheme. Harmonics stator currents induced by fault conditions are examined. Simulation means a two-dimensional finite-element analysis (FEA) software package and...

This paper presents and analyzes a method for short-circuit fault detection in permanent-magnet synchronous motor (PMSM). The study includes steady-state condition speed transients operation. stator current is decomposed by empirical mode decomposition (EMD), which generates set of intrinsic functions (IMFs). Quadratic time-frequency (TF) distributions such as smoothed pseudo-Wigner-Ville Zhao-Atlas-Marks are applied on the more significant IMFs detection. Simulations experimental laboratory...

Electrical data analysis based on smart grids has become a fundamental tool used by electrical grid stakeholders to understand the energy consumption patterns of users, although many proposals in this area do not consider reactive as another source useful information regarding distribution costs and threats grid. In regard, can an extremely addition existing frameworks. This work shows application series clustering techniques over measurements both active measured for end users from...

There is a general trend in the aerospace industry toward increasing use of electrically-powered equipment. This usually referred to as "Power-by-Wire" "More Electric Aircraft" (MEA) concept and it leads, among others, substitution hydraulic actuators by Electro-Mechanical Actuators (EMA). Its benefits are decrease maintenance effort weight, an increase efficiency. However, jamming case obstacles stop massive EMAs flight-control actuators. The aim herein introduce safety needs...

The traditional methodology for defining the ampacity of overhead lines is based on conservative criteria regarding operating conditions line, leading to so-called static line rating. Although this procedure has been considered satisfactory decades, it nowadays sensible account more realistic when calculating its dynamic ampacity. Dynamic rating a technology used improve transmission assumption that not value but function weather and line's conditions. In order apply technology, necessary...

This paper presents a new approach for the current acquisition system in motor fault detection applications. includes study, design, and implementation of Rogowski-coil sensor without integrator circuit that is typically used. The an autotuning block able to adjust different speeds. Equalizing amplitudes fundamental harmonics leads higher precision measurements. resulting compact used as probe induction motors through signal analysis. use Rogowski coil allows better discrimination around...

This paper presents an Energy Management System (EMS) for solving the problem regarding optimal daily operation of Photovoltaic (PV) distributed generators in Alternate Current (AC) distribution grids. To this effect, a nonlinear programming (NLP) was formulated which considered improvement economic (investment and maintenance costs), technical (energy losses), environmental (CO2 emission) grid indices as objective functions, considering all operating constraints AC networks with presence PV...

This paper deals with the problem regarding optimal operation of photovoltaic (PV) generation sources in AC distribution networks a single-phase structure, taking into consideration different objective functions. The is formulated as multi-period power flow applied to grids, which generates nonlinear programming (NLP) model non-convex structure. Three functions are considered optimization model, each optimized using single-objective function approach. These (i) an operating costs composed...

This article studies the permanent magnet demagnetization fault in synchronous machines (PMSM). The study is carried out by analyzing harmonics obtained using fast Fourier transform (FFT) of stator and zero sequence currents at nominal torque for whole range machine operation speeds. appropriate combination analyses on different makes it possible to determine faults any speed

This paper examines winding faults as short circuit for permanent magnet synchronous motor (PMSM). The study is carried out by means of stator current harmonic analysis. dq0 transformation also used to diagnose the state machine, and Wavelet approach proposed extend analysis transitory failure. Experimental results full range speeds have been obtained, which demonstrate claims paper.

The paper presents an experimental study of the broken bearings and eccentricity faults detection for a permanent magnet synchronous motor (PMSM). Conclusions are obtained from analysis stator current harmonic spectrum. is spread to zero component q axis current, whole range rotor speeds

This paper presents a study of the permanent magnet synchronous motor (PMSM) running under demagnetization. The simulation has been carried out by means two dimensional (2-D) finite element analysis (FEA), and simulations results were compared with experimental results. demagnetization fault is analyzed decomposition stator currents obtained at different speeds for torque change.

This paper presents a study of the permanent magnet synchronous machine (PMSM) running under bearing damage. To carry out two-dimensional (2-D) Finite Element Analysis (FEA) is used. Stator current induced harmonics for fault condition were investigated. Advanced signal analysis by means continuous and discrete wavelet transforms was performed. Simulation carried compared with experimental.

This work is an approach to develop new and reliable tools in order diagnose mechanical faults PMSM motors under non constant working conditions. These kinds of (especially damaged bearings) are more present the industry. The paper presents a theoretical overview different techniques for joint time frequency analysis experimental study detection diagnosis bearings on permanent magnet synchronous motor (PMSM). experiments were performed with variable rotor speed such way that conventional...

This paper presents the study of permanent magnet synchronous machines (PMSM) running with eccentricity and bearings damage. The objective is to detect identify fault through current signature analysis. stator has been analyzed by means both Fourier (FFT) Discrete Wavelet (DWT) transforms. Simulations have carried out a two-dimensional (2-D) finite element analysis (FEA), they also compared experiments. results prove that method proposed can be used mechanical faults in PMSM.

The concept of a "More Electric Aircraft" (MEA) leads, among other actions, to the substitution hydraulic-based actuators for Electro-Mechanical ACtuators (EMA).

This study proposes a methodology for identifying time intervals in which time-of-use (ToU) energy tariffs can be set. is achieved by analyzing the variability electric power demand and esti-mating potential flexibility. The proposed as follows: first, data preprocessing performed, focusing on organization cleaning of individual consumption records. Subsequently, are processed classified using analysis clustering techniques. Then, representative clusters selected analyzed to identify periods...

The increasing concern for environmental conservation has spurred government initiatives towards energy efficiency. One of the key research areas in this regard is demand response, particularly focusing on differential pricing such as Time-of-Use (ToU). Differential tariffs are typically designed based mathematical or statistical models analyzing historical electricity price and consumption data. This study proposes a methodology identifying time intervals suitable implementing ToU tariffs,...

Early detection of interturn shorts during motor operation would eliminate consequential damage to adjacent coils and the stator core, then reducing repair costs outage time. In addition benefits gained from early turn insulation breakdown, significant advantages accrue by locating faulted coil within winding. Fault location not only increase speed repair, but also permit more optimal scheduling outage. Motor current signature analysis (MCSA) method is widely used as a diagnose tool for...

This paper presents a study of permanent magnet synchronous machine (PMSM) running under demagnetization. The demagnetization fault is analyzed through stator currents analysis and processing tools at different speeds. Advanced signal by means wavelet transforms presented. Simulations were carried out using two dimensional (2-D) finite element (FEA), result compared with experimental ones, showing the effectiveness proposed method for magnetization detection identification.