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This work aims at the development of an automated test bench using a LabVIEW virtual platform with features of a web-based data acquisition and remote control. An induction motor coupled to a dc generator set up is considered in this study; the set up is further upgraded and modified by adding suitable instrumentation and measurement facilities. Accuracy of the acquired data is validated and confirmed...
The main objective of this paper is to solve a practical and current problem, by taking advantage of the virtual instrumentation in testing electrical machines. The abilities of virtual instrumentation are used to data acquisition, measurement and analyze the values of no-load testing's parameters for three-phase induction motor. The virtual measurement system bench is designed and consist from two...
In this paper a developed universal system for testing of electrical motors will be described. The research of stator and rotor faults of induction motors has a need for measurements of good and damaged motors under various loads and power supply conditions. This new diagnostic system allows a fully automatic measurement of all relevant values, like supply voltage, stator currents, shaft speed and...
This paper presents a method for the squirrel cage asynchronous motors parameters determination, which is the object of a invention proposal. The method involves monitoring a direct-on-line starting and processing, by minimizing an objective function, the data recorded during starting. There are also presented the experimental results obtained, with accent on the synchronization device, which is the...
An acquisition system centred on Rogowski coil and the voltage divider is introduced to eliminate the common-mode voltage effect induced by the H-bridge PWM inverter. The test apparatus is made of the voltage measurement, the current transducer, and the Nicolet acquisition system. For reducing the common-mode influence, a symmetrical voltage divider circuit is proposed by the instrumentation, which...
In this work, a virtual instrument in the LabViewtrade programming language is presented, which allows handling a linear three-phase power amplifier that drives an induction machine in a wide range of voltages and frequencies. In addition, this work shows the main features of virtual instruments commonly employed in research or experimental activities that involves signal generation, acquisition data...
This paper presents the development of a computer based data acquisition system that provides real-time monitoring of voltage and current at the customer's point of common coupling (PCC). Any power quality disturbances sustained by the user throughout the monitoring period were detected and recorded on remote PC. Post acquisition analysis was performed on the data collected. The power quality system...
In this paper, using Lab VIEW graphical programming environment are implemented the virtual instrumentationpsilas concept, realizing a virtual measurement system which are been used in searching and testing laboratories of electrical machine and drives, in engineering education from universities, colleges and schools for upgraded their laboratories with the power of computer based data acquisition...
The single/two phase induction motors (S/TPIM) are used in various low-power, low-cost applications. A representative example is the washing machine drum's main drive. Both manufacturers and designers have augmented their preoccupations and researches to optimize the efficiency of this drive due to the large and increasing number of devices in use and also stimulated by the market requests. At the...
A remote and sensorless stator winding resistance estimation method for thermal monitoring has been proposed for soft-starter-connected induction motors by the authors. As an continuation of the previous work, this paper specifically focuses on the practical implementation of the proposed method. In this paper, a compensation method for the measurement offsets is introduced to improve the performance...
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