一种新型大容量电力电子通信中16位CRC并行算法  

A Novel 16-Bit CRC Parallel Algorithm of Communication in Large-capacity Power Electronic

作　　者：孙驰[1] 张成[2] 艾胜[1] 陈玉林[1] 

机构地区：[1]海军工程大学,舰船综合电力技术国防科技重点实验室,湖北武汉430033 [2]华中科技大学,电气与电子工程学院,湖北武汉430074

出　　处：《电力电子技术》2011年第9期129-132,共4页Power Electronics

基　　金：国家自然科学基金项目(50607020,50737004ZD,51177170)~~

摘　　要：大容量电力电子装置在电路结构、空间布局及控制功能上往往都存在较明显的分布性,需采用实时性高且复杂的分布式控制技术,而实现该分布式控制技术的关键是高速串行通信。循环冗余校验(CRC)作为串行通讯中最常见的数据校验法,可保证通讯数据的准确性与可靠性。针对大容量电力电子装置中数据传输实时性高、控制数据基于开关周期自然分段且要求可靠性高的特点,提出一种基于纯逻辑电路的分段型数据CRC校验用CRC16_16并行算法,CRC代码的产生和校验无需时序控制信号,运行速度快,解决了字节型CRC16并行算法所存在的时序控制复杂、控制信号多的缺点。实验结果验证了该算法的有效性、正确性和可行性。Obviously,the circuit structure,spatial layout and control functions of large-capacity power electronic de-vices are often distributed,and the distributed control with high real-time and complex is need to be used.A critical technology to realize the distributed control is the high-speed serial communication.As the most common method of data checkout in serial communication,CRC check can ensure the accuracy and reliability of communication data.For the data transmission with high real-time,control data segment naturally based on switching cycle and high demand reliability in large-capacity power electronic devices,a CRC16_16 parallel algorithms of subsection data CRC check-sum which based on a pure logic circuit is proposed.There is no timing control signals need to be used in CRC code generation and checkout,and fast.The disadvantages of complex timing control and having many control signals in current CRC16 parallel algorithms are solved.The validity,correctness and feasibility are verified by the experimental results.

关 键 词：串行通信 循环冗余校验 分布式控制 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]