无刷直流伺服电机换向最优控制
Optimal Control of Commutation in Brushless dc Servo Machines
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摘要: 为改善无刷直流伺服电机的换向转矩性能,本文利用逆变器电压控制矢量优化调制的思 想,提出了基于非换向相电流的恒频采样PWM控制的最优换向方案,该方案能有效地抑制换 向转矩脉动,缩短换向时间.实验结果表明,上述方案是可行的.Abstract: According to the theory of optimal modulation of the voltage control vector of the inverter, this paper presents an optimal commutation strategy with PWM control method of constant frequency sampling based on the non-commuting current, in order to improve the performance of the torque due to commutation in brushless DC machines. This strategy can attenuate the torque ripple due to commutation and minimize its duration effectively. The experimental results indicate that above strategy is feasible.
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Key words:
- Voltage control /
- optimal commutation /
- torque ripple
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