摘要
针对单相异步电机两相绕组多为不对称型的特点,分析推导该类电机在实现对称运行时,主副绕组上所加电压的关系,并基于两相三桥臂式结构的逆变器,将SVPWM控制技术运用于单相电机变频调速系统。使电机能够对称运行,调速范围宽,定子电流波形正弦度高,且便于DSP编程实现。通过试验波形很好地验证了此控制技术的正确性和有效性。
For two phase windings of the single phase induction motors（SPIM）are mostly characterized by asymmetrical parameter type,the voltage relationship between the main winding and auxiliary winding is analyzed in this paper when SPIM realizes symmetry operation.And then SVPWM control strategy is applied to a SPIM frequencay control system based on two-phase inverter with three legs.The motor can be operated symmetrically,have wide speed range and stator current waveforms with high degree of sinusoidal by DSP programming easily.Finally,the experimental results verify the correctness and effectiveness of the control technology.
出处
《陕西电力》
2014年第4期89-92,共4页
Shanxi Electric Power
基金
广东省自然科学基金项目(S2012040007895)
关键词
SVPWM
单相异步电机
两相绕组不对称型
变频调速
single phase induction motors（SPIM）
two-phase winding asymmetry type
frequency control
