Numerical analysis of steady-state operation of three-phase induction machines by an approximate frequency domain technique1

2011 ◽  
Vol 128 (3) ◽  
pp. 81-85 ◽  
Author(s):  
A. Stermecki ◽  
O. Bíró ◽  
K. Preis ◽  
S. Rainer ◽  
G. Ofner
Keyword(s):  
Steady State ◽  
Numerical Analysis ◽  
Frequency Domain ◽  
Induction Machines ◽  
Steady State Operation ◽  
Three Phase ◽  
Approximate Frequency

scholarly journals Numerical Analysis of Cooling Characteristics for HTS Tri-axial Cable in Steady State Operation

2013 ◽  
Vol 48 (3) ◽  
pp. 127-132
Author(s):  
Shin OHNO ◽  
Masashi AKITA ◽  
Daisuke MIYAGI ◽  
Makoto TSUDA ◽  
Takataro HAMAJIMA
Keyword(s):  
Steady State ◽  
Numerical Analysis ◽  
Steady State Operation

scholarly journals Dynamic Energy Efficient Control of Induction Machines Using Anticipative Flux Templates

2021 ◽  
Vol 11 (6) ◽  
pp. 2878
Author(s):  
Antony Dominic ◽  
Gernot Schullerus ◽  
Martin Winter
Keyword(s):  
Energy Efficiency ◽  
Steady State ◽  
Real World ◽  
Optimal Solution ◽  
Induction Machines ◽  
Optimization Techniques ◽  
Efficiency Optimization ◽  
Dynamic Operation ◽  
Energy Efficiency Improvement ◽  
Steady State Operation

Energy efficiency optimization techniques for steady state operation of induction machines are the state-of-the-art, and many methods have already been developed. However, many real-world industrial and electric vehicle applications cannot be considered to be in steady state operation. The focus of this contribution is on the efficiency optimization of induction machines in dynamic operation. Online dynamic operation is challenging due to the computational complexity and the required low sample times in an inverter. An offline optimization is therefore conducted to gain knowledge. Based on this offline optimal solution, a simple and easy to implement template based solution is developed. This approach aims at replicating the solution found by the offline optimization by resembling the shape and anticipative characteristics of the optimal flux trajectory. The energy efficiency improvement of the template based solution is verified by simulations and measurements on a test bench and using a real-world drive cycle scenario. For comparison, a model predictive numerical online optimization is investigated too.

Steady-state modelling method for matrix-reactance frequency converter with boost topology

2011 ◽  
Vol 60 (2) ◽  
pp. 137-148
Author(s):  
Igor Korotyeyev ◽  
Beata Zięba
Keyword(s):  
Fourier Series ◽  
Steady State ◽  
Differential Equations ◽  
Numerical Method ◽  
Frequency Converter ◽  
Double Fourier Series ◽  
Galerkin’S Method ◽  
Galerkin's Method ◽  
Modelling Method ◽  
Three Phase

Steady-state modelling method for matrix-reactance frequency converter with boost topologyThis paper presents a method intended for calculation of steady-state processes in AC/AC three-phase converters that are described by nonstationary periodical differential equations. The method is based on the extension of nonstationary differential equations and the use of Galerkin's method. The results of calculations are presented in the form of a double Fourier series. As an example, a three-phase matrix-reactance frequency converter (MRFC) with boost topology is considered and the results of computation are compared with a numerical method.

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