CAJ | 학술논문

使用融冰装置的同塔双回特高压输电线路对其中一回进行停运融冰时，由于线路之间的静电耦合和电磁感应效应，另一回运行线路会在融冰装置处产生感应电压、电流，影响设备的安全。基于Bergeron模型搭建1000 kV同塔双回线路直流融冰仿真模型，分析了融冰装置端口的感应电压，并分别计算了线路电气量、几何参数以及接线方式对感应电压的影响。计算结果表明：融冰装置感应电压随运行线路电流提高而明显增大，受线路电压变化影响较小；感应电压与线路长度呈正相关关系，回线间水平距离对感应电压影响显著；不同的接地方式感应电压不同；线路换位对融冰装置端口处感应电压的影响可以忽略。
사용융빙장치적동탑쌍회특고압수전선로대기중일회진행정운융빙시，유우선로지간적정전우합화전자감응효응，령일회운행선로회재융빙장치처산생감응전압、전류，영향설비적안전。기우Bergeron모형탑건1000 kV동탑쌍회선로직류융빙방진모형，분석료융빙장치단구적감응전압，병분별계산료선로전기량、궤하삼수이급접선방식대감응전압적영향。계산결과표명：융빙장치감응전압수운행선로전류제고이명현증대，수선로전압변화영향교소；감응전압여선로장도정정상관관계，회선간수평거리대감응전압영향현저；불동적접지방식감응전압불동；선로환위대융빙장치단구처감응전압적영향가이홀략。
When a deicer is used to melt the ice on one of double circuit transmission lines on the same tower, which is in outage condition, the induced voltage and current on the deicer will be caused by the another transmission line being operated due to the electrostatic coupling and electromagnetic induction effect between transmission lines and the induced voltage and current affect the safety of the deicer. Based on Bergeron model a simulation model of deicing 1 000 kV double circuit transmission lines on the same tower is constructed; the induced voltage at the terminals of the deicer is analyzed; the impacts of electrical quantities, geometrical parameters and connection modes of transmission line on the induced voltage are calculated respectively. Calculation results show that the induced voltage on the deicer obviously increases with the increase of the current of the transmission line being operated and the voltage variation of the transmission line being operated slightly impacts the induced voltage on the deicer;there is a positive correlation relationship between the induced voltage on the deicer and the length of the transmission line;the horizontal distance between the two transmission lines impacts the induced voltage greatly;the induced voltages under different grounding modes are not the same;the impact of line transposition on induced voltage at the terminals of the deicer can be neglected.