High speed variable-inductor controlled with DC-DC converter

This paper describes a fundamental consideration on high speed control of the orthogonal-core type variable-inductor. The variable-inductor is applicable to a VAR compensation in the electric power system. The transient characteristics of the variable-inductor under the condition of DC control are discussed based on simulation and experiment. For high speed operation, we present an instantaneous control of the primary current. A simple control circuit using a DC-DC converter is demonstrated in this paper.