Proposal of variable active-passive reactance

The concept of a variable active-passive reactance (VAPAR) which consists of an inverter and a passive element is proposed. The VAPAR behaves like a two-port reactive element and the produced active reactance works as a passive reactive component, including in the transient state. The authors present the principle of the VAPAR and two possible control schemes to realize the VAPAR. Through simulations and experiments, it is verified that the VAPAR shows two-port reactive characteristics not only in steady state but also in the transient state.<<ETX>>