Control strategy for a three-phase DC-AC converter with an output LCLC filter that feeds an unknown load current source
文献类型： 会议论文
第一作者： David Porras Fernandez
作者： David Porras Fernandez 1 ; Sebastian Gomez Jorge 1 ; Claudio Busada 1 ; Jorge Solsona 1 ;
作者机构： 1.Instituto de Inv. en Ing. Electrica "Alfredo Desages" (IIIE) Universidad Nacional del Sur-CONICET
关键词： DC-AC converter;Virtual sensor;Feedforward compensation;LCLC filter
会议名称： Argentine Conference on Automatic Control
主办单位：
页码： 37-42
摘要： This paper presents a control strategy for a three-phase DC-AC converter with an output LCLC filter that feeds an unknown current load. The main purpose is to improve the performance of the system under sudden changes in the load while the output voltage follows a reference giving by the designer. To obtain a quick response, a feedforward and PR controller is proposed, which includes a compensation that estimates the current load, its first derivative and two states of the filter. To get this estimation, virtual sensors are used. With this, the use of four sensors is avoided. Simulation results are presented to show the performance of the proposed controller
分类号： TP273-53
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