基于对称法与相位法的新型消弧线圈

分析了当前自动跟踪补偿消弧线圈技术的发展以及存在的问题，提出了基于对称法与相位法相结合的新型消弧线圈设计方案，介绍了电容电流检测方法和装置结构。该方法利用了零序电压U。与脱谐度υ关系曲线的对称性以及U。与线电压UBC的相位关系，无需反复调节消弧线圈电感值就可快速、精确地跟踪测量电网电容电流。根据该方法研制出的新型消弧线圈试验和现场运行均表明，该型消弧线圈具有响应速度快、补偿精度高、无机械动作可靠性高等特点。

NEW TYPE OF ARC SUPPRESSION COIL BASED ON SYMMETRY AND PHASE TUNING PRINCIPLE

By analyzing the current state and existing problems of automatic resonance arc suppression coil, the design of a new type of arc suppression coil based on symmetry and phase tuning principle is presented. The symmetry and phase tuning principle is based on the symmetry of u0(v) curve and the phase of U0 and UBC. Capacitive current in power network can be calculated quickly without iteratively adjusting arc suppression coil by this type of measurement. The arc suppression coil developed with the new measurement is tested and put into field operation. The results show that this type of arc suppression coil has quick atic resonance speed, accurate compensation and preferable reliability.