Power electronics concepts for driving EAP actuators
Power electronics concepts for driving EAP actuators
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用于驱动 EAP 执行器的电力电子概念
DOI：
10.1117/12.2009729
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
J. Maas
中科院分区：
文献类型：
--
作者：
L. Eitzen;Thorben Hoffstadt;J. Maas
与单层电活性聚合物（EAP）致动器相比，堆叠致动器表现出有利的特性，诸如在可接受的低操作电压下的大位移。因此，EAP叠层致动器似乎是一个有前途的选择，在商业应用中的成功使用。对于EAP堆致动器或EAP致动器的能量有效操作，通常具有高电压能力的足够的功率电子器件是必不可少的。根据具体应用，必须考虑使用不同的转换器拓扑结构与适当的控制概念相结合。在该贡献中，提出了用于驱动EAP堆致动器的不同可能的转换器概念。对于每个基本的转换器概念，提出了不同的转换器拓扑结构。对一种反激变换器结合有源放电电路进行了详细分析，并提出了相应的控制方案。最后，仿真和实验结果的原型反激变换器。
Compared to single layer electroactive polymer (EAP) actuators, stack actuators exhibit advantageous properties such as large displacements at acceptably low operating voltages. Therefore, EAP stack actuators seem to be a promising option for the successful use in commercial applications. For an energy-efficient operation of EAP stack actuators or EAP actuators in general an adequate power electronics with high voltage capability is indispensable. Depending on the specific application, the use of different converter topologies combined with suitable control concepts has to be considered. In this contribution different possible converter concepts for driving EAP stack actuators are presented. For each fundamental converter concept, different converter topologies are proposed. A flyback converter combined with an active discharging circuit is analyzed in detail and suitable control designs are developed. Finally, simulation and experimental results of the prototype flyback converter are presented.