Harmonic Order Tracking Analysis: A Speed-Sensorless Method for Condition Monitoring of Wound Rotor Induction Generators

Autor: Angel Sapena-Bano, Ruben Puche-Panadero, J. Perez-Cruz, Javier Martinez-Roman, Martin Riera-Guasp, Manuel Pineda-Sanchez
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Engineering
020209 energy
02 engineering and technology
Fault (power engineering)
Industrial and Manufacturing Engineering
Predictive maintenance
Wound rotor motor
law.invention
extended Park's vector
law
Control theory
0202 electrical engineering
electronic engineering
information engineering
non-stationary working conditions
Electrical and Electronic Engineering
harmonic order tracking analysis
signal processing
Signal processing
Wind power
rotor asymmetries
Rotor (electric)
business.industry
020208 electrical & electronic engineering
Induction generator
Condition monitoring
motor-current signature analysis
Control engineering
Gabor transform
time-frequency distributions
fault diagnosis
Fourier transforms
Control and Systems Engineering
INGENIERIA ELECTRICA
wound rotor induction machines (WRIMs)
business
Zdroj: RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname
Popis: [EN] This paper introduces a speed-sensorless method for detecting rotor asymmetries in wound rotor induction machines working under nonstationary conditions. The method is based on the time-frequency analysis of rotor currents and on a subsequent transformation, which leads to the following goals: unlike conventional spectrograms, it enables to show the diagnostic results as a simple graph, similar to a Fourier spectrum, but where the fault components are placed always at the same positions, regardless the working conditions of the machine; moreover, it enables to assess the machine condition through a very small set of parameters. These characteristics facilitate the understanding and processing of the diagnostic results, and thus, help to design improved monitoring and predictive maintenance systems. Also these features make the proposed method very suitable for condition monitoring of wind power generators, because it fits well with the usual non stationaryworking conditions ofwind turbines, and makes feasible the transmission of significant diagnostic information to the remote monitoring center using standard data transmission systems. Simulation results and experimental tests, carried out on a 5-kW laboratory rig, show the validity of the proposed method and illustrate its advantages regarding previously developed diagnostic methods under nonstationary conditions.
This work was supported by the Spanish Ministerio de Economia y Competitividad in the framework of the Programa Estatal de Investigacion, Desarrollo e Innovacion Orientada a los Retos de la Sociedad under Project (DPI2014-60881-R).
Databáze: OpenAIRE
Externí odkaz: