新しいトランス共振 DC リンク回路トポロジーと瞬時空間電圧ベクトル変調三相電圧形 ZVS-PWM 正弦波インバータへの応用

概要

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The newly-proposed Resonant DC Link (RDCL) topology operating under the high-frequency trans-former-assisted zero-voltage soft switching commutation principle is presented in this paper. This basic circuit operating principle and the optimum design procedure for Transformer-Assisted Quasi-Resonant DC Link (TQRDCL) which excludes its load current sensing-based predictive feedback control loop and the DC voltage-clamped PWM function are considered as compared with the conventional RDCL circuit topologies. The performance of three-phase ZVS-PWM inverter system is discussed and evaluated in terms of the comparative study between TQRDCL three-phase soft-switching PWM type and conven-tional three-phase hard-switching PWM inverter systems on the basis of the simulating and experimental results.
山口大学の論文