Journal ArticleDOI
Speed prediction method of variable frequency drive induction motor running with fault
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TLDR
A new speed prediction method of variable frequency drive induction motor based on second-order increment that realizes the prediction and control of the motor speed, the effect of reducing the amount of calculation is obtained under the condition of small disturbance error, and the accuracy of speed prediction is improved.Abstract:
The current use of first-order incremental prediction is simply the use of motor speed increment to predict the next moment motor speed. For the problem that the prediction error is large when the ...read more
Citations
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Journal ArticleDOI
Resonance overvoltage control algorithms in long cable frequency conversion drive based on discrete mathematics
Yonghong Deng,Quanzhu Zhang +1 more
TL;DR: In this paper, the resonance overvoltage control algorithm of the long cable variable voltage and variable frequency (VVVF) system based on discrete mathematics is studied, and the experimental results show that the algorithm can effectively control the resonance-overvoltage phenomenon in the long-cabled frequency conversion drive system.
References
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Journal ArticleDOI
Multi-step wind speed and power forecasts based on a WRF simulation and an optimized association method
TL;DR: In this paper, the authors proposed a multi-step forecasting method based on a Cuckoo search (CS) optimized fuzzy clustering, and an Apriori association process.
Journal ArticleDOI
Variable switching frequency PWM technique for induction motor drive to spread acoustic noise spectrum with reduced current ripple
A. C. Binojkumar,G. Narayanan +1 more
TL;DR: In this paper, the authors proposed a variable-frequency PWM and evaluated the performance of the same experimentally on a 6-kW induction motor drive, and the experimental results show that the acoustic noise is spread uniformly over a range of frequencies without introducing low-frequency current harmonics.
Journal ArticleDOI
Squirrel-Cage Induction Motor Parameter Estimation Using a Variable Frequency Test
TL;DR: In this paper, the authors used a phase-to-phase standstill variable frequency test to compare the performance of single-and double-cage induction motor parameters, and found that the single-cages model is unable to fit the measured data for frequencies above several tenths of Hertz.
Journal ArticleDOI
Hybrid short-term freeway speed prediction methods based on periodic analysis
TL;DR: This paper comprehensively evaluated the multi-step prediction performance of space time (ST) model, vector autoregression (VAR), and autoregressive integrated moving average (ARIMA) models using the 5 minute freeway speed data collected from five loop detectors located on an eastbound segment of Interstate 394 freeway, in Minnesota.
Journal ArticleDOI
Interharmonic Source Model for Current-Source Inverter-Fed Variable Frequency Drive
Jing Yong,Xin Li,Wilsun Xu +2 more
TL;DR: In this paper, a frequency-domain interharmonic model for the current-source inverter-fed (CSI-fed) variable frequency drives (VFDs) is presented in the form of a Thevenin equivalent circuit.