scholarly journals New space vector PWM method based on virtual flux vector for T-NPC Inverter

2014 ◽  
Vol 17 (2) ◽  
pp. 13-26
Author(s):  
Dzung Quoc Phan ◽  
Quyen Ha Minh Tran ◽  
Dat Ngoc Dao ◽  
Tuyen Dinh Nguyen ◽  
Anh Bao Nguyen ◽  
...  

This paper proposes a new SVPWM algorithm for operating the three-level TNPC topology. The idea of this algorithm is approximating as close as possible the locus of actual virtual flux vector and ideal one and minimizing the numbers of switching in one switching interval to improve the efficiency of the whole system. The virtual flux vector is monitored to determine the sector and the proper non-zero voltage vectors. The performance of the converter and the comparison of different modulation methods are analyzed. Simulation and experimental results show that the proposed method provides high efficiency.

Author(s):  
Phan Quoc Dzung ◽  
Dinh Tuyen Nguyen ◽  
Tran Ha Minh Quyen ◽  
Dao Ngoc Dat ◽  
Nguyen Bao Anh ◽  
...  

1993 ◽  
Vol 75 (3) ◽  
pp. 567-575
Author(s):  
WAN YI ◽  
HYO L. LlU ◽  
YONG C. JUNG ◽  
JUNG G. CHO ◽  
GYU H. CHO

Author(s):  
Belkacem Gasmi ◽  
Othmane Abdelkhalak

<p class="Abstract">This work presents a study of the three-phase parallel active power filter and the various controllers used in its control. Moreover, in order to improve the quality of electrical energy, by making it conform to the new normative constraints, we have also been led to develop and apply advanced automation methods. In this framework, this paper reports of several regulatory structures : fuzzy logic, PWM, new space vector PWM (NSVPWM), space vector PWM (SVPWM), HYSTERESIS moreover, in order to produce a parallel active filter, a thorough study of experimental feasibility was carried out, taking into account the industrial constraints of the product both in its design and its application.</p>


2012 ◽  
Vol 429 ◽  
pp. 229-235
Author(s):  
Zhi Hong Wu ◽  
Guo Qiang Chen ◽  
Yuan Zhu ◽  
Guang Yu Tian

Aiming the traditional space vector PWM with equal duration of the two zero vectors, the paper introduces the principle of SVPWM. The harmonic is analyzed based on formula expression, numerical computation, and graph presentation. The optimal zero vector partitioning method is proposed. Finally, the interpolation method and discretization of the optimal method are proposed and discussed.


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