Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Three-Phase Interleaved Isolated High Efficiency Boost Converter
Authors Jungwan Choi ; Hanju Cha
Page pp.496-503
ISSN 1229-2214
Keywords 3-phase dc-dc converter; Isolated boost converter; Interleaved; Continuous current conduction
Abstract To get the constant output, synchronous generator field excitation is controlled by AVR(Automatic Voltage Regulator). Most of ships generator AVR uses the thyristor phase controlled rectifier. However this rectifier is difficult to realize that the fast control system because its control period is slower than MOSFET and IGBT type converter. Therefore, this paper deals with PMG(Permanent Magnet Generator) type digital AVR using MOSFET switch for ships synchronous generator. The composition of this digital AVR is very simple, the generator is under the short circuit accident, the output voltage becomes zero state and AVR can not operate. Thus generator is required to add CBC(Current Boosting Circuit) in an excitation circuit to flow output current. The performance of the proposed system is evaluated on a 10[kVA] experimental prototype circuit in place of real ships generator.