电网电压对称分量自适应检测方法

电网电压检测一直是电力领域研究的难点问题，目前已有的检测方法适用范围单一，实际应用效果并不理想。文中提出一种电网电压基波和谐波对称分量自适应检测方法，对于常见电网故障所提结构具有鲁棒性，方法最大的特点就是将锁相环与自适应滤波器结合在一起，使得系统在电网频率变化的情况下依然保持良好的特性。通过电网故障状态下的仿真结果，证明了检测方法拥有广泛的应用前景。

The adaptive detection algorithm of grid voltage symmetrical components

Grid voltage detection is one of the important problems which need researching. The existing detection algorithms are confined and less applied. To solve these problems, a new grid voltage fundamental and harmonic symmetrical components detection method based on adaptive linear filter is proposed. This method is robust to the common grid fault. To achieve frequency adaptation, a combination of adaptive linear filter and phase locked loop is used. The excellent simulation results can verify the correctness and validity.