绝缘材料
絕緣材料
절연재료
INSULATING MATERIALS
2015年
1期
70-73
,共4页
750 kV输电线路%ANSYS仿真软件%复合绝缘子%电场强度%模型
750 kV輸電線路%ANSYS倣真軟件%複閤絕緣子%電場彊度%模型
750 kV수전선로%ANSYS방진연건%복합절연자%전장강도%모형
750 kV transmission line%ANSYS simulation software%composite insulators%electric field strength%model
为改善超高压输电线路的复合绝缘子端部电场强度集中、易产生放电和闪络等问题，通过建立复合绝缘子和均压环仿真模型，采用ANSYS仿真软件对复合绝缘子和均压环模型的电场进行仿真测试，分析均压环参数对电场强度的影响，从而优化均压环参数。结果表明：优化均压环参数r=45 mm，R=900 mm，h=300 mm，加装优化均压环后，复合绝缘子表面的电场强度下降，满足高海拔地区750 kV输电线路绝缘子安全运行的要求。
為改善超高壓輸電線路的複閤絕緣子耑部電場彊度集中、易產生放電和閃絡等問題，通過建立複閤絕緣子和均壓環倣真模型，採用ANSYS倣真軟件對複閤絕緣子和均壓環模型的電場進行倣真測試，分析均壓環參數對電場彊度的影響，從而優化均壓環參數。結果錶明：優化均壓環參數r=45 mm，R=900 mm，h=300 mm，加裝優化均壓環後，複閤絕緣子錶麵的電場彊度下降，滿足高海拔地區750 kV輸電線路絕緣子安全運行的要求。
위개선초고압수전선로적복합절연자단부전장강도집중、역산생방전화섬락등문제，통과건립복합절연자화균압배방진모형，채용ANSYS방진연건대복합절연자화균압배모형적전장진행방진측시，분석균압배삼수대전장강도적영향，종이우화균압배삼수。결과표명：우화균압배삼수r=45 mm，R=900 mm，h=300 mm，가장우화균압배후，복합절연자표면적전장강도하강，만족고해발지구750 kV수전선로절연자안전운행적요구。
To improve the discharge and flashover problems produced by electric field strength concentration of the end of composite insulators for UHV transmission line, we established composite insulator and grading ring model, and their electric field strength was simulated by ANSYS simulation software to analyz the effect of grading ring parameters on the electric field strength and to optimize the grading ring parameters. The results show that when the optimized grading ring parameter r is 45 mm, R is 900 mm, and h is 300 mm, the surface electric field strength of the composite insulators decreases after installing the optimized grading ring, which meet the requirement of safe operation for 750 kV UHV transmission line in high altitude area.
