基于仿真分析的輸電線路樹木超高放電特性研究
	石可頌,徐菲
	(國網(wǎng)冀北電力有限公司廊坊供電公司,河北 廊坊 065000)
	 
	
		    摘 要:架空輸電線路常因樹木超高生長造成線路故障跳閘,影響輸電線路的供電穩(wěn)定性。架空輸電線路樹木超高生長會導(dǎo)致電暈放電—隱患放電—閃絡(luò)放電三個循序漸進的過程,基于樹木超高生長中放電過程,搭建 Ansys 仿真模型,研究了不同電壓等級的樹木超高放電過程凈空距離,同時開展樹木超高生長試驗,對試驗過程中樹木放電特性行波數(shù)據(jù)進行分析,獲取了不同凈空距離下行波特征,并針對行波特征制定樹木超高生長預(yù)警方法,為架空線路隱患放電提供了科學(xué)合理的預(yù)警方法,保證了架空輸電線路供電的穩(wěn)定性。
	
		    關(guān)鍵詞: 架空輸電線路;Ansys 仿真;樹木放電;行波
	
		    中圖分類號:TM726.3     文獻(xiàn)標(biāo)識碼:A     文章編號:1007-3175(2025)09-0034-08
	
		 
	
		
			Research on the Characteristics of Ultra-High Discharge of Trees on
		
			Transmission Lines Based on Simulation Analysis
		
			 
		
			
				SHI Ke-song, XU Fei
			
				(State Grid Jibei Electric Power Co., Ltd. Langfang Power Supply Company, Langfang 065000, China)
			
				 
			
				
					    Abstract: Overhead transmission lines often trip due to the excessive growth of trees, which affects the power supply stability of the transmission lines. The ultra-high growth of trees in overhead transmission lines lead to three progressive processes: corona discharge, hazard discharge and flashover discharge. Based on the discharge process during the ultra-high growth of trees, this paper builds an Ansys simulation model to study the clearance distance of the ultra-high discharge process of trees at different voltage levels, meanwhile the tree ultra-high growth experiment is carried out, then the traveling wave data of tree discharge characteristics are analyzed during the experiment, thus obtaining traveling wave characteristics at different clearance distances to formulate the tree ultra-high growth early warning method, which provided a scientific and reasonable early warning method for hidden discharge of overhead lines and ensured the stability of power supply of overhead transmission lines.
				
					    Key words: overhead transmission line; Ansys simulation; tree discharge; traveling wave
				
					 
				
					
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