中国电机工程学报2025，Vol.45Issue(7)：2719-2731,中插23,14.DOI:10.13334/j.0258-8013.pcsee.232702
面向海上风电直流升压汇集的非对称双向有源桥DC-DC变换器
Asymmetrical Bidirectional Active Bridge DC-DC Converter for DC Voltage Step-up Collection in Offshore Wind Farm
摘要
Abstract
This paper proposes a DC-DC converter topology with asymmetrical bidirectional power conversion capability to meet the demand for DC step-up collection in offshore wind power plant.It enables input-parallel-output-series DC voltage step-up during offshore wind power delivery,while also allowing for reverse power transmission under low capacity through modulation strategy changing when the wind farm requires power support.In this paper,the soft switching and power transmission characteristics of the converter in both forward and reverse operating modes are analyzed.Based on these analysis,corresponding control and modulation strategies are developed for output voltage regulation and serial voltage balance.By reducing the number of components to meet different forward and reverse requirements,compared with traditional bidirectional converters,the cost of the converter can be reduced.Based on simulation and experimental results,the power regulation,mode switching,and soft-switching characteristics of the proposed forward and reverse differentially converter are tested to verify the effectiveness of the proposed topology.关键词
直流风电升压汇集/非对称双向功率变换/多模式运行/软开关运行/均压控制Key words
DC wind power step-up collection/asymmetrical bidirectional power conversion/multimode operation/soft switching operation/voltage balance control分类
信息技术与安全科学引用本文复制引用
肖寒冰,马建军,朱淼,文书礼,孔祥平..面向海上风电直流升压汇集的非对称双向有源桥DC-DC变换器[J].中国电机工程学报,2025,45(7):2719-2731,中插23,14.基金项目
国家电网有限公司科技项目(5500-202218122A-1-1-ZN).Science and Technology Project of State Grid Corporation of China(5500-202218122A-1-1-ZN). （5500-202218122A-1-1-ZN）
