高频交流环节AC/AC变频变换系统基准正弦电路研究  

RESEARCH ON REFERENCE SINUSOIDAL CIRCUIT OF AC/AC VARIABLE FREQUENCY CONVERSION SYSTEM OF HIGH FREQUENCY AC LINK

作　　者：陈道炼[1] 尹春[1] 

机构地区：[1]南京航空航天大学自动化学院,江苏南京210016

出　　处：《中国电机工程学报》2003年第2期5-8,共4页Proceedings of the CSEE

基　　金：国家自然科学基金项目(59977010);江苏省自然科学基金项目(BK99121);航空基础科学基金项目(02F52027)

摘　　要：首次提出并深入分析研究了一类全数字化技术、与电网电压n倍频或n分频信号同步的基准正弦电路,并给出了关键电路参数设计准则与试验结果,试验结果与理论分析一致。该基准正弦电路具有输出正弦电压与电网电压n倍频或n分频信号同步、THD小、幅值可调且不受电网电压波动的影响、简单实用、价格低廉等优点,在高频交流环节AC/AC变频变换系统和UPS中具有重要应用价值。A reference sinusoidal circuit, based on digital techniques and synchronous with the signal of 1/n or n times the frequency of line voltages, is first proposed and investigated . The circuit is used in the novel AC/AC cycloconverter, consisting of an input cycloconverter, a high frequeacy transformer or a storage transformer, and an output cycloconverter, in the high frequency ac link. The circuit is composed of a sinusoidal/square waveform conversion circuit of line voltages, the 1/n or n times frequency circuit, a clock siqnal generator, a phase synchronous circuit, a magnitude and polarity control circuit, and a sinusoidal wave generator.

关 键 词：高频交流环节 基准正弦电路 AC/AC变频变换系统 变换器 电网 电力系统 

分 类 号：TN624[电子电信—电路与系统] TM761[电气工程—电力系统及自动化]