双向CLLC谐振变换器的参数设计方法研究  

Study on Parameter Design Method for Bi-directional CLLC Resonant Converters

作　　者：王弘珺 郁专 谢少军[1] WANG Hongjun;YU Zhuan;XIE Shaojun(School of Automation,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China;ABB Engineering(Shanghai)Ltd.,Shanghai 201319,China)

机构地区：[1]南京航空航天大学自动化学院,南京211106 [2]上海ABB工程有限公司,上海201319

出　　处：《电源学报》2025年第1期11-20,66,共11页Journal of Power Supply

基　　金：国家自然科学基金资助项目(51877104)。

摘　　要：CLLC谐振变换器可实现双向功率传输,具有高效率、高功率密度的特点,但传统的参数设计方法步骤繁琐,需迭代多次才能取得合适的功率电路参数。为此,深入分析双向CLLC变换器工作原理和工作特性,提出1种新的参数设计方法。综合考虑全工作范围软开关、设计指标约束及高效率优化条件,缩小设计参数的可选范围,优化设计步骤,有效减少了变换器参数设计过程的复杂度。结合工业场合下48~380 V/kW双向直流变换应用需求,给出了具体的参数设计步骤和结果,并研制出了样机,通过实验测试验证了所提参数设计方法的正确性和有效性。The bi-directional power transmission with a high efficiency and a high power density can be achieved by employing CLLC resonant converters.However,the traditional parameter design method is cumbersome and requires multiple iterations to obtain appropriate circuit parameters.To solve this problem,the working principle and characteristics of a bi-directional CLLC converter are analyzed,and a novel parameter design method is proposed.By considering the full range of soft switching,design index constraints and high-efficiency optimization conditions,the range of design parameters is narrowed and the design steps are optimized,thus effectively reducing the complexity of the converter parameter design process.Based on the demand for a 48~380 V/kW bi-directional DC-DC converter in industrial applications,specific parameter design steps and results were given,and a prototype was developed.The correctness and effectiveness of the proposed parameter design method was verified through experimental testing.

关 键 词：CLLC谐振变换器 参数设计 软开关 双向直流变换器 

分 类 号：TM46[电气工程—电器]