基于TMS320F28335的改进型单周期控制实现  

Research on Improved One-cycle Control Based on TMS320F28335

作　　者：程林[1] 陈新[1] 蒋真 

机构地区：[1]南京航空航天大学,江苏南京210016 [2]国家电网电力科学研究院,江苏南京210003

出　　处：《电力电子技术》2011年第12期107-108,122,共3页Power Electronics

摘　　要：此处对应用于逆变器的单周期控制进行分析和改进,使改进后的单周期控制能够更有效地抑制负载扰动,输出电压总谐波畸变率(THD)变小。推导出单极性和双极性PWM模式的单周期控制方程,给出在TMS320F28335上的具体实现方案,为了减小采样误差,对采样时刻选取进行分析。最后通过实验证明改进型单周期控制能快速响应负载扰动,输出电压质量高,鲁棒性好。The paper presents improved way for digital one-cycle control.With this modulation method, load disturbance can be rejected more effectively and output vohage＇s THD is lower.The paper derivates equations for OOC in different PWM mode.Based on TMS320F28335,details about modified control are introduced,and sampling instant is analyzed for reducing sampling error.Finally, it puts forward waveform of experiment, proving that this method has rapid dynamic response to load disturbance, with high quality output voltage and strong robustness.

关 键 词：逆变器 单周期控制 脉宽调制模式 

分 类 号：TM464[电气工程—电器]