【摘要】 研究了基于补偿控制策略的提高通用变频器调速性能的方法。从电机模型出发应用坐标变换得到定子电阻压降补偿控制,根据V/f控制近似保持气隙磁通不变的原理提出一种近似转差频率补偿方法,并采用电机电流重构的方法进行实时死区补偿。分析和初步实验研究表明,采用的补偿控制方法是可行的。更多还原

【Abstract】 The compensation control methods for improving performance of the V/f controlled induction motor drives were proposed.The stator resistance voltage drop was compensated using coordinate transform from induction motor model,and an approximate slip frequency compensation method was introduced based on V/f strategy,which approximately keeps the magnitude of the air gap flux constant.The dead-time was compensated by the scheme of current reconstruction on-line.The analysis and elementary experiment results show the proposed strategies are feasible.更多还原