摘要
考虑电枢反应中磁饱和现象、电机各相间互感以及功率管的非线性特性等因素的影响,为提升电流环性能,提出了一种新型的永磁同步电机复合电流控制方法。该方法中控制器由相电流畸变纠正控制器和功率角补偿控制器组成。相电流畸变控制器采用P控制配合电流前馈实现,能够较好地对相电流畸变进行纠正。针对负载变化时功率角变化较大的问题,专门设计了功率角补偿控制器,可以通过稳定快速地检测内功率因数角自动进行功率角补偿。实验结果验证了该方法的有效性,表明该方法可以在高转速、大电流、高动态的情况下稳定可靠地对航空油泵电机进行控制。
A compound current control method was developed for permanent-magnet synchronous motors to improve the current control by considering the magnetic saturation, mutual inductance and nonlinear characteristics of the inverters. The controller is a current distortion correcting controller with a power angle compensating controller. The phase current distortion correcting controller uses P control with current feed forward, which can correct phase current distortions. Since the power angle changes with the load, the control method includes a power angle compensating controller which automatically compensate for changes in the power angle by quickly detecting the internal power-factor angle . Tests verify the effectiveness of this controller which gives a stable, reliable control for a high speed, rapidly varying aerospace fuel pump motor that draws large currents.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第9期1166-1172,共7页
Journal of Tsinghua University(Science and Technology)
基金
国家自然科学基金面上项目(61104082)
关键词
永磁电机
航空油泵电机
电流畸变
功率角补偿
复合控制
permanent-magnet motor
aerospace fuel pump motor
current distortion
power angle compensating
compound control
