Analysis of Multisampled Current Control for Active Filters

被引：87

作者：

Corradini, Luca ^{[1
]}

Stefanutti, Walter ^{[2
]}

Mattavelli, Paolo ^{[3
]}

机构：

[1] Univ Padua, Dept Informat Engn, I-35131 Padua, Italy

[2] Univ Udine, Dept Elect Mech & Management Engn, I-33100 Udine, Italy

[3] Univ Padua, Dept Technol & Management Ind Syst, I-36100 Vicenza, Italy

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2008年 / 44卷 / 06期

关键词：

Active power filters (APFs); digital control; multisampling;

D O I：

10.1109/TIA.2008.2006327

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper investigates the multisampling techniques applied to the current control in active-power-filter (APF) applications. In APF applications with digital control, the main bandwidth limitation derives from AID conversion and computational delays and the Sampling-related delay of the digital pulsewidth modulation (DPWM). Using field-programmable gate arrays and fast AID converters for the control implementation, it is possible to minimize the former two; thus, the overall phase lag is dominated by the DPWM, which can strongly be reduced by the multiple-sampling approach, breaking bandwidth limitations of single-sampled solutions. Moreover, as the multisampling approach triggers nonlinear behaviors that can negatively impact the filter-compensating capabilities, a solution based on a simple digital filter is proposed which linearizes the system behavior and does not waste the multisampling advantages. Simulation and experimental results on a 10-kVA prototype confirm the theoretical expectations.

引用

页码：1785 / 1794

页数：10

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