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复合绝缘子伞形结构对其周围流场特性有明显的影响，从而导致其覆冰特性存在差异。为此，分别在人工气候室和自然覆冰试验站对多种伞形结构220 kV 复合绝缘子进行了人工模拟和自然现场覆冰试验研究，分析了伞形结构对其覆冰增长特性的影响规律，结果表明：随着覆冰程度的增大，冰棱根数逐渐减少，冰棱长度和直径、伞面冰厚和覆冰重量均逐渐增大但增速变慢；伞裙直径增大时，覆冰增长较快，而伞间距增大时，冰棱长度、伞面冰厚和覆冰重量均逐渐变大但冰棱直径变小；在重度覆冰条件下，伞形结构的影响已不明显；自然覆冰条件下，伞形结构对绝缘子覆冰增长的影响规律与人工模拟试验结果基本一致。“,”Shed configuration obviously affects flow field characteristics around composite insulator, impacting ice growth on its surface. Therefore, artificial and natural ice accretion tests for 220 kV composite insulators with different shed configurations were carried out in both artificial climate chamber and natural icing experimental station. Influences of shed configuration on ice growth characteristics were analyzed. Results indicated that with increase of icing degree, icicle number gradually decreased, while icicle length, icicle diameter, ice thickness on shed surface and ice weight gradually increased and then tended to saturation. Ice grew faster for larger shed diameter. For bigger shed spacing, icicle length, surface ice thickness and ice weight were all larger but icicle diameter was smaller. Under heavy icing condition, effect of shed configuration became unapparent. When ice was accreted on composite insulators under natural condition, influences of shed configuration on ice growth were basically consistent with artificial test results.