物理学报2012,Vol.61Issue(13):50-57,8.
单相SPWM逆变器快标分叉控制及其稳定性分析
Control of fast-scale bifurcation in single-phase SPWM inverter and its stability analysis
摘要
Abstract
H bridge inverter is a basic nonlinear topology in power electronic circuits. However it is prone to the generauon of tast-scale instability phenomenon due to the variation of some parameters in the operation process, which can be eliminated with the slope compensation simply and effectively. Experience plays the leading role and common engineering design is lacking in necessary design criteria. Accrording to the bifurcation control theory of nonlinear system, in this paper we analyze the implementation of slope compensation on H bridge inverter under peak current mode control in detail, thereby obtaining the accurate amplitude requirements of the compensated slope signal and realize the optimization. The results of the analysis are consistent with those of simulation experiment, and the inverter circuit under appropriate slope compensation can operate in stable regime especially, with the performances being enhanced remarkably. The research method is also applicable for the stability analysis of other power electronic circuits.关键词
H桥逆变器/峰值电流模式控制/斜坡补偿/分叉控制Key words
H bridge inverter/peak current mode control/slope compensation/bifurcation control分类
信息技术与安全科学引用本文复制引用
胡乃红,周宇飞,陈军宁..单相SPWM逆变器快标分叉控制及其稳定性分析[J].物理学报,2012,61(13):50-57,8.基金项目
国家自然科学基金(批准号:60672023,61071023)资助的课题 ()