摘要
将瞬时功率理论推广应用于具有非正弦波形和不平衡负载的三相四线制系统，试图通过与传统 功率定义的对比解释其物理意义，并将其应用于三相四线制系统的畸变电流或畸变电压观测，通过仿真 验证了所提出观测方法在 ＡＰＬＣ控制中应用的有效性．
The instantaneous power theory is extended and applied to three-phase four-wire power systems with nonsinusoidal waveforms and unbalanced loads. The physical meaning of the instantaneous power theory is explained by comparing with the traditional power theories and the instantaneous power theory is used to observe distorted current and distorted voltage. The results of the digital simulations verify the effectiveness of the presented method, which is used to control the APLC.
