电压控制感应电机驱动中的振荡

Proceedings of 1995 International Conference on Power Electronics and Drive Systems. PEDS 95 Pub Date : 1995-02-21 DOI:10.1109/PEDS.1995.404936

R.S. Janardhana Iyengar, V. Sastry

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引用次数: 2

摘要

在恒频恒压源供电的欠阻尼电压控制感应电机驱动器中，可以注意到5至10 Hz范围内的振荡。这些振荡产生噪声，可能损坏系统。仿真结果表明，振荡是由触发不对称引起的，导致电机电流变化率大。这些振荡在6脉冲120/声压度/宽度触发方案中比根据12脉冲的概念更明显。实验数据与仿真结果进行了验证，为有效理解这一现象提供了定量数据。针对这类数字驱动系统的振动阻尼，提出了两种控制策略

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Oscillations in voltage controlled induction motor drives

Oscillations in the range of 5 to 10 Hz are noticed in some underdamped voltage controlled induction motor drives fed from a constant frequency constant voltage source. These oscillations produce noise and may damage the system. The results from simulation have shown that the oscillations are due to the asymmetry in triggering, resulting in a large rate of change of motor current. These oscillations are more pronounced with a 6-pulse 120/spl deg/ width triggering scheme than according to a 12-pulse concept. The experimental data are verified with the simulation results giving quantitative data for effective understanding of this phenomena. Two control strategies are suggested for damping of oscillations in such digital drive systems.<>

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Proceedings of 1995 International Conference on Power Electronics and Drive Systems. PEDS 95

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