Improved two-vector direct power control algorithm-based three-phase pulse width modulation rectifier

2016 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE) Pub Date : 2016-12-01 DOI:10.1109/ICECTE.2016.7879609

Likun Liu, W. Xu, Md. Rabiul Islam

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引用次数: 1

Abstract

Direct power control (DPC) has received a significant amount of research attention because of its benefits such as simplicity, robustness and excellent dynamic response. Conventional switching-table-based single-vector DPC (SV-DPC) presents irregular power ripples and variable switching frequency, due to the use of predefined switching table and hysteresis comparators. To solve these problems, two-vector DPC (TV-DPC) and three-vector DPC (THV-DPC) based three-phase pulse width modulation (PWM) rectifier are proposed. Although the performance of the THV-DPC is better than that of TV-DPC, its algorithm implementation is very complex and time consuming. In this paper, two-three combined vector DPC (TTCV-DPC) algorithm is presented which combines two and three voltage vectors by the help of the new switching table. The proposed algorithm has less complexity than the THV-DPC and better performance than the TV-DPC. Comprehensive simulations demonstrate the proposed method can get lower power ripple and lower grid-side current total harmonic distortion (THD) than that of TV-DPC.

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基于改进的双矢量直接功率控制算法的三相脉宽调制整流器

直接功率控制(DPC)以其简单、鲁棒性和良好的动态响应等优点受到了广泛的关注。传统的基于开关表的单矢量DPC (SV-DPC)由于使用了预定义的开关表和迟滞比较器，导致功率纹波不规则，开关频率可变。为了解决这些问题，提出了基于两矢量DPC (TV-DPC)和三矢量DPC (THV-DPC)的三相脉宽调制整流器。虽然THV-DPC的性能优于TV-DPC，但其算法实现非常复杂且耗时。本文提出了一种利用新型开关表将两个电压矢量和三个电压矢量组合在一起的二-三组合矢量DPC (TTCV-DPC)算法。该算法的复杂度低于THV-DPC，性能优于TV-DPC。综合仿真结果表明，与TV-DPC相比，该方法具有较低的功率纹波和较低的电网侧电流总谐波失真(THD)。

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2016 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE)

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