Abstract
This paper presents a modified V/f control strategy using neural network with an improved flux pattern using third harmonic injection for multiphase induction machines. The control objective is to generate a nearly rectangular air-gap flux, resulting in an improved machine power density for the required speed range. If just a proportional relation is used between the third harmonic and fundamental plane voltage magnitudes with zero phase shift, variable misalignment between fundamental and third air-gap flux components occurs with varying mechanical loading as a result of stator voltage drop. Due to this misalignment, saturation may take place which affects the total flux and increases machine iron losses. Neural network is used to obtain the required injected voltage phasors magnitudes and angles to ensure that the air-gap flux is near rectangular with a maximum value of 1 pu for all loading conditions. Simulations are carried out on an eleven-phase induction machine to validate the proposed controller using MATLAB/Simulink.
| Original language | English |
|---|---|
| Pages (from-to) | 163-169 |
| Number of pages | 7 |
| Journal | Alexandria Engineering Journal |
| Volume | 50 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jun 2011 |
| Externally published | Yes |
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Keywords
- Eleven-phase
- Multiphase induction machine
- Rectangular air-gap flux
- Third harmonic injection
ASJC Scopus subject areas
- Engineering(all)
Cite this
Improved flux pattern by third harmonic injection for multiphase induction machines using neural network. / Abdel-Khalik, Ayman; Gadoue, Shady M.
In: Alexandria Engineering Journal, Vol. 50, No. 2, 06.2011, p. 163-169.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Improved flux pattern by third harmonic injection for multiphase induction machines using neural network
AU - Abdel-Khalik, Ayman
AU - Gadoue, Shady M.
PY - 2011/6
Y1 - 2011/6
N2 - This paper presents a modified V/f control strategy using neural network with an improved flux pattern using third harmonic injection for multiphase induction machines. The control objective is to generate a nearly rectangular air-gap flux, resulting in an improved machine power density for the required speed range. If just a proportional relation is used between the third harmonic and fundamental plane voltage magnitudes with zero phase shift, variable misalignment between fundamental and third air-gap flux components occurs with varying mechanical loading as a result of stator voltage drop. Due to this misalignment, saturation may take place which affects the total flux and increases machine iron losses. Neural network is used to obtain the required injected voltage phasors magnitudes and angles to ensure that the air-gap flux is near rectangular with a maximum value of 1 pu for all loading conditions. Simulations are carried out on an eleven-phase induction machine to validate the proposed controller using MATLAB/Simulink.
AB - This paper presents a modified V/f control strategy using neural network with an improved flux pattern using third harmonic injection for multiphase induction machines. The control objective is to generate a nearly rectangular air-gap flux, resulting in an improved machine power density for the required speed range. If just a proportional relation is used between the third harmonic and fundamental plane voltage magnitudes with zero phase shift, variable misalignment between fundamental and third air-gap flux components occurs with varying mechanical loading as a result of stator voltage drop. Due to this misalignment, saturation may take place which affects the total flux and increases machine iron losses. Neural network is used to obtain the required injected voltage phasors magnitudes and angles to ensure that the air-gap flux is near rectangular with a maximum value of 1 pu for all loading conditions. Simulations are carried out on an eleven-phase induction machine to validate the proposed controller using MATLAB/Simulink.
KW - Eleven-phase
KW - Multiphase induction machine
KW - Rectangular air-gap flux
KW - Third harmonic injection
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UR - http://www.scopus.com/inward/citedby.url?scp=80053568365&partnerID=8YFLogxK
U2 - 10.1016/j.aej.2010.12.002
DO - 10.1016/j.aej.2010.12.002
M3 - Article
VL - 50
SP - 163
EP - 169
JO - AEJ - Alexandria Engineering Journal
JF - AEJ - Alexandria Engineering Journal
SN - 1110-0168
IS - 2
ER -