A novel control algorithm for magnetically controlled reactor

In order to reduce the response time and solve the problem of reactive power overcompensation of the magnetically controlled reactor (MCR), a novel compensation algorithm is proposed in this paper. The algorithm is based on the principles and algorithms of unbalanced load compensation and via modifying the compensation conditions of the Steinmetz principle. The general formula of the compensatory algorithm is derived from instantaneous reactive power theory. The algorithm can be used as the control strategy to balance the three-phase active power, but also can compensate loads to specified power factor and effectively prevent reactive power feeding inversely that caused by overcompensation. The results of simulations are coincided with the theory analyses, which demonstrate that the algorithm proposed by this paper has high precision and good dynamic characteristics.