CAJ | 학술논문

以750 kV超高压交流、1000 kV特高压交流输电线路工程为背景,介绍了线路悬式复合绝缘子伞裙结构的优化设计.在对14种不同伞裙结构的复合绝缘子试品进行人工污秽闪络试验的基础上,结合前期得到的对复合绝缘子伞裙积污特性仿真分析计算结果,优化选择了悬式复合绝缘子的伞裙结构,以使它们具有较优的综合性能.人工污秽试验及计算机仿真分析的结果表明,使用优化后的伞裙结构,可使线路悬式复合绝缘子同时具有较高的污闪电压、较优的积污特性以及较好的工程应用经济性.研究结果可为750 kV超高压交流、1000 kV特高压交流输电工程外绝缘的设计和绝缘子的选型提供理论依据.
이750 kV초고압교류、1000 kV특고압교류수전선로공정위배경,개소료선로현식복합절연자산군결구적우화설계.재대14충불동산군결구적복합절연자시품진행인공오예섬락시험적기출상,결합전기득도적대복합절연자산군적오특성방진분석계산결과,우화선택료현식복합절연자적산군결구,이사타문구유교우적종합성능.인공오예시험급계산궤방진분석적결과표명,사용우화후적산군결구,가사선로현식복합절연자동시구유교고적오섬전압、교우적적오특성이급교호적공정응용경제성.연구결과가위750 kV초고압교류、1000 kV특고압교류수전공정외절연적설계화절연자적선형제공이론의거.
The external insulation is one of the most important technological issues in the construction of UHVAC transmission projects. We mainly studied the optimal design of composite insulators' shed. Using the results of artificial contamination test for 14 composite insulators with different profiles as well as the results of simulation analysis on the contamination depositing characteristics of composite insulator, we optimized the profiles of the composite insulators in order to improve overall performance of the composite insulators. Thereafter, flashover voltages of composite insulators can be enhanced greatly, and the composite insulators have better contamination depositing characteristics. Therefore, the dimension of towers will be decreased and the cost of transmission systems will be reduced, especially in heavy pollution areas. Accordingly, this work can provide theoretical support of the external insulation design and the selection of insulators for 750 kV EHV AC, 1000 kV UHV AC transmission projects.