电气传动2019，Vol.49Issue(9)：31-34,4.DOI:10.19457/j.1001-2095.dqcd18815
电压匹配度对DAB特性的影响及其优化控制方法
Effects of Voltage Matching Degree on DAB Operating Characteristics and Its Optimal Control Methods
王天宇 1徐政 1姜红利 1陈锐坚2
作者信息
- 1. 清华大学深圳研究生院电力系统国家重点实验室深圳研究室,广东 深圳 518055 2.深圳天源新能源股份有限公司,广东 深圳 518055
- 2. 深圳天源新能源股份有限公司,广东 深圳 518055
- 折叠
摘要
Abstract
The effects of voltage matching degree on current stress and power loss pertinent to a dual active bridge (DAB)DC-DC converter was analyzed. It could be proved that the energy conversion efficiency of the converter was not optimal when the voltages were perfectly matched. Properly increasing the voltage on the adjustable side could reduce current stress and improve the energy conversion efficiency under heavy load condition. Accordingly,the improved model selection and control method were proposed,and the multi-function photovoltaic(PV)controller using DAB circuit was developed correspondingly. The experiments demonstrate the correctness of the theoretical analysis and the reliability of practical operation.关键词
双有源桥/双向DC/DC变换/充放电控制/转换效率/电流应力Key words
dual active bridge(DAB)/bi-directional DC/DC conversion/charge/discharge control/transfer efficie-ncy/current stress分类
信息技术与安全科学引用本文复制引用
王天宇,徐政,姜红利,陈锐坚..电压匹配度对DAB特性的影响及其优化控制方法[J].电气传动,2019,49(9):31-34,4.
