The Principle of a Novel Arc-suppression Coil and its Implementation

In this paper, a novel arc-suppression coil based on transformer theory is proposed. According to this theory, the reactance of the arc-suppression coil can be controlled exactly by controlling the current of secondary winding of the reactor, which is implemented by a single phase inverter. This fire-new arc-suppression coil has some excellent characteristics such as linear regulation capacity and few harmonics pollution. Another feature is that the capacitance of power network can be detected real time, which makes automatic tuning of the arc-suppression coil available. These features make this type arc-suppression coil competitive comparing with others in industrial applications. An apparatus is built up in terms of the theory and its structure will be introduced in the paper. In the last section, the experimental results are presented to prove the feasible of the theory and the validity of control system