摘要
文章分析了内燃机车辅助变流器模块常用的AC-DC-AC拓扑,采用傅里叶频谱分析法分别对电容纹波电流的整流侧分量和逆变侧分量数学模型进行评估,并提出了电容电流纹波的计算方法。通过搭建辅助变流器模块试验平台对电容纹波电流值进行测试,并分析电容器容值与纹波电流值的关系,结果表明该计算方式较为准确。
AC-DC-AC topology is commonly used in auxiliary converter module in diesel locomotive. In this paper, it assessed capacitor ripple current mathematical models in rectifier-side and inverter-side through Fourier spectrum, and put forward a calculation method for ripple current. Capacitor ripple current was tested through building auxiliary converter module test platform and the relationship between capacitance and ripple current was analyzed. Test results show that this calculation method is correct.
出处
《大功率变流技术》
2016年第2期5-10,共6页
HIGH POWER CONVERTER TECHNOLOGY
关键词
电容器
纹波电流
辅助变流器
capacitor
ripple current
auxiliary converter
