摘要
采用当前方法对DC-DC变换器的直流变压器进行控制时,控制效率低、抗扰性差、损耗检测误差大。为解决存在的问题,提出一种基于SRDAB DC-DC变换器的直流变压器控制方法。通过分析基于串联谐振型双主动全桥(SRDAB)的DC-DC变换器在运行过程中产生的半导体器件暂态损耗、半导体器件通态损耗、变压器一般损耗等各类损耗,以此计算变换器在工作过程中的总损耗。将损耗最小作为目标,建立变换器的直流变压器控制模型,并设置相关约束条件,采用遗传算法对直流变压器控制模型进行求解,完成直流变压器的控制。实验结果表明,所提方法效率高、抗扰性好、损耗检测误差小,实际应用效果好。
When the current method is used to control the DC transformer of the DC-DC converter,the control efficiency is low,the immunity is poor,and the loss detection error is large.In order to solve the existing problems,a DC transformer control method based on the SRDAB DC-DC converter was proposed.By analyzing the transient losses of semiconductor devices,the on-state losses of semiconductor devices,the general losses of transformers and other losses generated during the operation of the DC-DC converter based on the series resonant dual active bridge(SRDAB),the total loss in the working process of the converter was calculated.Taking the minimum loss as the goal,the DC transformer control model of the converter was established,and the relevant constraints were set,and the genetic algorithm was used to solve the DC transformer control model to complete the control of the DC transformer.The experimental result shows that the proposed method has high efficiency,good immunity,small loss detection error and good practical application effect.
作者
沈杰鑫
刘磊
何丹东
刘振国
储后广
马捍超
SHEN Jiexin;LIU Lei;HE Dandong;LIU Zhenguo;CHU Houguang;MA Hanchao(Electric Power Research Institute,State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi 830000,Xinjiang,China)
出处
《电气传动》
2022年第18期24-29,共6页
Electric Drive
基金
国家重点研发计划资助项目(2016YFB0901100)
国家电网公司科技项目(52130417002U)。
关键词
串联谐振型双主动全桥
直流变压器
损耗分析
控制模型
遗传算法
series resonant dual active bridge(SRDAB)
direct current(DC)transformer
loss analysis
control model
genetic algorithm
