scholarly journals Multiple Harmonic Suppression Method for Induction Motor Based on Hybrid Morphological Filters

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 151618-151627
Author(s):  
Fang Xie ◽  
Kangkang Liang ◽  
Wenming Wu ◽  
Wenjie Hong ◽  
Chenming Qiu
2017 ◽  
Vol 32 (3) ◽  
pp. 2064-2071 ◽  
Author(s):  
Sumit Pramanick ◽  
R. Sudharshan Karthik ◽  
Najath Abdul Azeez ◽  
K. Gopakumar ◽  
Sheldon S. Williamson ◽  
...  

2021 ◽  
Author(s):  
Gopakumar K

<div>Abstract—In this work, a multi-level 42-sided polygonal space vector structure (SVS) for suppression of lower order harmonics for Open-End Induction Motor(OEIM) drive applications is proposed. The proposed power circuit topology consists of two inverters feeding an Open-End Induction Motor from either side. The main inverter fed with a single DC link providing active power for motor operation is switched at low switching frequency. The secondary</div><div>inverter fed with a capacitive supply is switched at high frequency to suppress lower order harmonics upto 39th order, up to the base speed of operation allowing maximum utilization of the DC link. The advantages of lower order harmonic suppression in motor phase voltage, for polygonal space vector structures are combined with multi-level inverter topology. This results in lower switching losses in low frequency switching main inverter and low voltage secondary inverter. Use of a single DC link facilitates four quadrant operation of the inverter. The proposed scheme is validated for steady state and dynamic performance by experimental results.</div>


Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1856 ◽  
Author(s):  
Jinhong Li ◽  
Dawei Meng

In order to improve the Direct Current (DC) bus utilization ratio and realize harmonic suppression of a five-phase induction motor, the SVPWM (Space Vector Pulse Width Modulation) algorithm was researched in depth. Based on an analysis of the present SVPWM algorithm and the volt-second balance principle, a dynamic and adjustable new pattern four-vector SVPWM algorithm was proposed. The algorithm uses the modulation index and zero vector to improve the characteristics of the inductor motor, the function relationship with real-time dynamic ratio between the action–time ratio of the space voltage vector and the modulation index was proposed to maximize DC bus utilization ratio, and the random zero-vector dynamic modulation mode was used to reduce harmonic influence, being able to spread harmonics concentrated around certain frequencies across a wider frequency band and thus produce a more continuous and uniform power spectrum. The new algorithm model was built using Matlab/Simulink, and the simulation and experimental results demonstrated that the algorithm is effective and feasible.


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