A new SVC control strategy for voltage flicker mitigation and integrated compensation to electric arc furnace

In order to mitigate these harms such as voltage fluctuation and flicker, three-phase imbalance and low power factor, which are caused by impact loads like electric arc furnaces, this paper proposes a new SVC control strategy for voltage flicker mitigation and integrated compensation to impact loads. Taking into account the impact of the active power component of impact loads on voltage fluctuation and flicker, and using not only three-phase balance and high power factor but also voltage stabilization as the direct control aims, this paper deduces a new SVC integrated compensation equation. Via theory analysis, system simulation and experiment validation, it shows that this proposed method can realize the compensation aims of three-phase balance and high power factor, and more importantly, it can accomplish the precise control for system voltage, so effectively solve the problem of voltage fluctuation and flicker.