多精度反馈编码在并联DC/DC无线通信系统中的应用  

Application of Multi-precision Feedback Coding in Parallel DC/DC Wireless Communication System

作　　者：吴津庆 陈宗祥 葛芦生 承良超 WU Jinqing;CHEN Zongxiang;GE Lusheng;CHENG Liangchao(School of Electrical and Information Engineering,Anhui University of Technology,Ma’anshan 243000,China)

机构地区：[1]安徽工业大学电气与信息工程学院

出　　处：《电源学报》2019年第6期168-176,共9页Journal of Power Supply

基　　金：国家自然科学基金资助项目（51277003）~~

摘　　要：提出了一种对误差信息进行多精度反馈编码的方法。该方法通过将主模块的电流基准值的误差信息进行多精度反馈编码后传输到从模块,而主从模块通过误差信息来恢复电流的基准值,实现并联变换器均流。与传统的将主模块电流基准值信息直接进行编码发送到从模块相比,该方法在电流基准信息发生改变时仍然有效。通过对编码区间段进行合理地划分,可以在不增加传输数据量的同时,提高有效数据位的利用率。通过对误差信息多精度反馈编码,可以有效降低无线网络延时对系统的影响,从而进一步提高无线并联系统的开关频率。最后,实验验证了该方法的有效性。A multi-precision feedback coding method based on error information is proposed,in which the error information of the current reference value in the master module is processed by multi-precision feedback coding and then transmitted to the slave modules.Both the master and slave modules recover the current reference value by using the error information to realize current sharing in the parallel converter.Compared with the conventional method of transmitting the current reference information from the master module directly to the slave modules,the novel method is still effective when the current reference information is changed.By appropriately dividing the coding interval into several parts,it is possible to improve the utilization ratio of effective data bits without increasing the amount of transmission data.The multi-precision feedback coding for error information can effectively reduce the effects brought by the wireless network delay on the parallel system,thereby improving the switching frequency of the wireless parallel system further.Finally,the effectiveness of the proposed method was verified by experimental results.

关 键 词：多精度反馈编码 DC/DC变换器 并联系统 误差编码 无线通信 

分 类 号：TN46[电子电信—微电子学与固体电子学] TN92