A New Direct Power Control Strategy for NPC Three-Level Voltage Source Rectifiers Using a Novel Vector Influence Table Method

Zhe Xu; Jia-Xin Zhao; Chang-Liang Xia

A New Direct Power Control Strategy for NPC Three-Level Voltage Source Rectifiers Using a Novel Vector Influence Table Method

Zhe Xu

Jia-Xin Zhao

Chang-Liang Xia

Vol. 15, No. 1, pp. 106-115, Jan. 2015

10.6113/JPE.2015.15.1.106

Active power

Direct Power Control (DPC)

Neutral-point potential

NPC three-level rectifiers

Reactive power

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Abstract

This paper proposes a novel direct power control (DPC) strategy for neutral-point-clamped (NPC) three-level rectifiers, to directlycontrol the active power, the reactive power and the neutral point potential of the rectifiers by referring to three pre-calculated vectorinfluence tables and minimizing an objective function. In the three vector influence tables, the influences of different voltage vectorson the active power, the reactive power and the neutral-point potential are shown explicitly. A conceptual description and controlalgorithm of the proposed controller are presented in this paper. Then, numerical simulations and experiments are carried out tovalidate the proposed method. Both the simulation and experimental results show that good performances during both thesteady-state and transient operating conditions are achieved. As a result, the proposed strategy has been proven to be effective forNPC three-level rectifiers.

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Cite this article

[IEEE Style]

Z. Xu, J. Zhao, C. Xia, "A New Direct Power Control Strategy for NPC Three-Level Voltage Source Rectifiers Using a Novel Vector Influence Table Method," Journal of Power Electronics, vol. 15, no. 1, pp. 106-115, 2015. DOI: 10.6113/JPE.2015.15.1.106.

[ACM Style]

Zhe Xu, Jia-Xin Zhao, and Chang-Liang Xia. 2015. A New Direct Power Control Strategy for NPC Three-Level Voltage Source Rectifiers Using a Novel Vector Influence Table Method. Journal of Power Electronics, 15, 1, (2015), 106-115. DOI: 10.6113/JPE.2015.15.1.106.