CAJ | 학술논문

针对断续模式(DCM)下2/3/2 LCC混合谐振DC/DC变换器电路参数表达式复杂、工作模式界限不明确、谐振网络电压增益随开关频率非线性变化及谐振电流峰值过大等问题,在详细分析电路工作过程的基础上,推导了参数表达式.为满足变换器的软开关、工作模式准确选择、输出电压准确调节等目标要求,在给出适合工程设计要求的一定约束条件下,通过仿真计算,得到了关键参数合理取值范围,为该类变换器的设计提供了设计依据.实验结果表明,按原理公式和仿真结果取值是合理的.
침대단속모식(DCM)하2/3/2 LCC혼합해진DC/DC변환기전로삼수표체식복잡、공작모식계한불명학、해진망락전압증익수개관빈솔비선성변화급해진전류봉치과대등문제,재상세분석전로공작과정적기출상,추도료삼수표체식.위만족변환기적연개관、공작모식준학선택、수출전압준학조절등목표요구,재급출괄합공정설계요구적일정약속조건하,통과방진계산,득도료관건삼수합리취치범위,위해류변환기적설계제공료설계의거.실험결과표명,안원리공식화방진결과취치시합리적.
Considering that the circuit parameter expression of LCC 2/3/2 hybrid resonant converter is complex, the limit of operating mode undefined, and the voltage gain of resonant network changes with the switching frequency non-linearly as well as the peak of resonant current being oversize, this paper deduces the parameter expression on the basis of analyzing the working process of the circuits in detail. To meet the goals and requirements for selecting properly soft switching and operating mode of the converter, it obtains the reasonable value range of the key parameters by simulating computation, after giving a certain constraints properly for the project design, thus presenting the design basis for this type of converter. Experimental results show that it is reasonable to value by the principle formula and simulation results.