机构地区: 中南大学
出 处: 《长沙铁道学院学报》 2002年第3期94-99,共6页
摘 要: 基于自适应噪声抵消方法和人工神经网络 (ANN )理论 ,提出一种谐波电流检测分析方法 .所设计的系统在线训练ANN ,具有二级滤波 ,能够对奇次、偶次、特定次以及总谐波进行实时准确的动态检测 .所提出的方法 ,无须进行Park变换 ,即可用于单相和三相不平衡系统 .仿真结果证实了该方法的有效性 . Based on self adaptive noise countervailing method and artificial neural network(ANN) theory,an approach for harmonics detection and analysis is presented.By training ANN on line and two level filter,the designed system could accurately complete dynamic detection for odd,even,specific,or total harmonics.Needing no Park transformation,the presented approach may be applied to a single phase system,or an unbalanced three phase system.Its availability is proved by simulation.