基于直轴电压分析的PMSM逆变器死区补偿策略

于家文, 朱鹏程, 徐永向

Dead Zone Compensation Strategy for Inverter of PMSM Based on Direct Axis Voltage Analysis

YU Jiawen, ZHU Pengcheng, XU Yongxiang

表1 死区效应对αβ轴电压的影响

θ -π/6~ π/6 π/6~ π/2 π/2~ 5π/6 5π/6 ~7π/6 7π/6~ 9π/6 9π/6~11π/6 ia + + - - - + ib - + + + - - ic - - - + + + ΔVα $- \frac{{2\Delta v}}{3}$ $- \frac{{\Delta v}}{3}$ $\frac{{\Delta v}}{3}$ $\frac{{2\Delta v}}{3}$ $\frac{{\Delta v}}{3}$ $- \frac{{\Delta v}}{3}$ ΔVb 0 $- \frac{{\Delta v}}{3}$ $- \frac{{\Delta v}}{3}$ 0 $\frac{{\Delta v}}{{\sqrt 3 }}$ $\frac{{\Delta v}}{{\sqrt 3 }}$