介绍了一种高精度、低纹波稳定电源用直流有源滤波器的工作原理和控制方法，在此基础上研制了实验装置。
The basic concept and control strategy of DC active power filter used in a high precision and low ripple power supply are presented in this paper, and an experimental device is developed.
实验验证了所设计的逆变装置具有良好的稳定性和可靠的控制策略，可广泛用于家庭、单位或社区里的光伏电源系统。
It abroad applied to the mini-types sun power supply in the home and unit and community, it had good stability and reliable control strategy by experiments showed the designed athwart-change.
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