摘要
为了分析交-交变频同步机系统运行时对电网电能质量的影响,我们针对重钢中板厂粗轧机交-交变频同步机系统的运行情况进行了一些分析研究。本文介绍了基于Matlab的交-交变频器带不同负载的建模与仿真。对交-交变频器输出电压及输出电流进行了谐波特性分析,指出了输出频率、输出电压比、"死区"对交-交变频器的影响,介绍了一种有效的零电流检测方法。并且对该系统在不同负载情况下的运行特性进行了简要分析。
In order to analyze the impact of cycloconverter-fed synchronous machine running system on power qualily, we have done some research to Chongqing Steel mill. This paper discusses modeling and simulation of the cycloconverter-fed system with different loads. Harmonic characteristics of the cycloconverter output vohage and current are analyzed. It pointes out the influences of output frequency.output voltage rate and “dead section” on cycloconverter as well as introduces an effective zero-current detective method. In addition, the operation performances of cycloconverter-fed synchronous machine system under different loads are briefly analyzed.
出处
《电源世界》
2008年第6期33-36,共4页
The World of Power Supply
