| 沈海平,费彬,蔡宜君,闵捷.凸组合的变电站噪声有源控制算法*[J].,2025,43(3):580-587 |
| 凸组合的变电站噪声有源控制算法* |
| Active noise control algorithm for substation noise with convex combination |
| 投稿时间：2024-01-16 修订日期：2025-04-30 |
| 中文摘要: |
| 为了改进有源噪声控制系统在实际变电站场景运行时的稳定性，特别是针对突发性、大强度冲击性噪声的鲁棒性，设计了滤波-x组合对数最小平均绝对值 (FxCLLMA) 算法。在算法的代价函数中融入了误差绝对值及其对数变换两种凸函数的线性组合，其特点是只需要维持一套滤波器的实时运行，系统开销与滤波-x最小均方(FxLMS)算法接近。实际变电站噪声控制结果表明FxCLLMA算法在稳态噪声时的性能与FxLMS算法接近，而在突发性、大强度冲击性噪声时的鲁棒性优于FxLMS算法。 |
| 英文摘要: |
| To improve the stability of active noise control systems in practical substation applications, especially the robustness against sudden and high-intensity impulse noise, the filtered x combined logarithm least mean absolute value (FxCLLMA) algorithm was designed. The cost function of the algorithm incorporates a linear combination of two convex functions, i.e., the absolute value of error and its logarithmic transformation. Its characteristic is that it only needs to maintain the real-time operation of one adaptive filter, and the system overhead is similar to that of the filtered x least mean square (FxLMS) algorithm. The simulation verification of actual substation noise shows the effectiveness and robustness of the FxCLLMA algorithm. |
| DOI：10.11684/j.issn.1000-310X.2025.03.006 |
| 中文关键词: 有源噪声控制 FxLMS算法 凸组合 变电站噪声 |
| 英文关键词: Active noise control Filtered-x LMS algorithm Convex combination Substation noise |
| 基金项目: |
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