Control strategy for a parallel active buffer circuit in a single-phase-inverter

M. Zehelein, S. Moench, M. Costa, A. Barner, J. Roth-Stielow
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引用次数: 3

Abstract

This paper presents a control strategy for a single-phase photovoltaic inverter, using a parallel active buffer circuit. The aim is to reduce the volume demand of the necessary capacitance for filtering the twice line frequency pulsating power. The pulsating power is stored in an additional buffer capacitor, which is decoupled from the input voltage by an active buffer circuit. Therefore a high voltage swing is possible. The control concept allows an independent operation of the parallel buffer circuit from the inverter circuit.
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单相逆变器并联有源缓冲电路的控制策略
本文提出了一种采用并联有源缓冲电路的单相光伏逆变器控制策略。目的是减少滤波双线频脉动功率所需电容的体积需求。脉冲功率存储在一个额外的缓冲电容中,该缓冲电容通过有源缓冲电路与输入电压解耦。因此,高电压振荡是可能的。该控制概念允许从逆变器电路中独立操作并联缓冲电路。
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