Virtual Flux Direct Power Control for Vienna Rectifier Under Unbalanced Grid

被引:4
|
作者
Rasouli, Milad [1 ]
Shekari, Morteza [2 ]
Ghoreishy, Hoda [3 ]
Gholamian, Sayyed Asghar [4 ]
机构
[1] Babol Noshirvani Univ Technol, Babol 4714871167, Iran
[2] Shahid Beheshti Univ, Dept Elect Engn, Tehran 1983969411, Iran
[3] Babol Noshirvani Univ Technol, Elect & Comp Engn, Babol 4714871167, Iran
[4] Babol Noshirvani Univ Technol, Fac Elect & Comp Engn, Babol 4714871167, Iran
关键词
Direct power control; dynamic response; THD; unbalanced grid; Vienna rectifier; virtual flux (VF); DISCONTINUOUS PWM METHOD; CARRIER-BASED PWM; DESIGN; CONVERTERS; STRATEGY; EQUIVALENCE; QUALITY; TABLE;
D O I
10.1109/TPEL.2023.3262315
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The Vienna rectifier is being broadly utilized in many industrial applications, which makes it essential to address its challenges. This article conducts the virtual flux-based direct power control and proposes an improved switching table for the Vienna rectifier under a balanced or unbalanced grid's voltage. Accordingly, the proposed method improves the THD of the three-phase input current when the grid voltage is unbalanced. Moreover, employing the virtual flux concept eliminates the use of three-phase input voltage. This results in reducing the cost of the converter. One of the challenges in the Vienna rectifier is to consider the current direction of the control design. Accordingly, the proposed switching table is designed based on the input current's sector. Furthermore, the positive and negative sequences of the input currents and virtual flux are utilized to correctly estimate the instantaneous input active and reactive power under the unbalanced grid voltage condition. Moreover, the proposed method can balance the output capacitors in balanced and unbalanced grid voltage conditions. This method possesses a high dynamic response due to hysteresis bands. Finally, a 430-W laboratory prototype of the Vienna rectifier is implemented, and the accuracy of the proposed VFDPC is verified through the experimental results.
引用
收藏
页码:8115 / 8125
页数:11
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