New Arc Control Technology Research

This paper analyses the factors affecting the safety of the power system at first, analyses the need and hardness in application of all-compensation arc-suppressing. Following that on the basic of details on combination of presetting mode and following-setting mode and the construction of principal-auxiliary, this paper focus on carrying out a principal-auxiliary controllable reactor arc-suppressing coil using the DSP controller, the automatic tap-adjusting arc-suppression coil and the thyristors controlled reactor (TRC). Both primary and secondary sides devices arc discussed minutely, and the paper especially introduces the principle of TRC and analyses such as the relationship between conduction angle and the equal reactor and the harmonic content, etc. At last the paper makes an introduction on the software of the controller. The instruction of the new arc-suppressing coil differs a lot from the traditional ones, so the capacitive current calculation, tap adjusting, fault line detecting and the resonance proposing are innovated totally.