Thesis Min-Ho Ahn, “클램프 스위치 양방향 DC/DC 컨버터의 ZVS 동작을 위한 최적 제어 알고리즘,” 아주대학교 공학석사 학위 논문, 2017.
2017
본문
This paper proposes an optimal control algorithm for Zero-Voltage-Switching (ZVS) operation of the clamp-switch bidirectional DC-DC
converter (CL-BDC) using micro controller
unit (MCU). The CL-BDC uses the clamp switch to operate ZVS. The clamp switch
of the CL-
BDC divides the inductor current from
input and output. The minimum of the inductor current is maintained to satisfy
ZVS condition
by the clamp switch in this topology. By
operating ZVS, the switching loss is reduced. As a result, the efficiency of
the entire system is
increased. In addition, the separation of
the inductor current can reduce the ripple of the inductor current and extend
the life of the
capacitor. Accordingly, the clamp switch
control algorithm is important to improve the system efficiency. The proposed
control
algorithm is verified in PSIM simulation and the prototype of the 1-kW ZVS CL-BDC.
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