摘要
为了实现多相永磁同步电机的谐波最优控制,建立了中心点隔离的双Y移相30°的凸极式永磁同步电机数学模型,同时根据逆变器的输出能力,推导了系统的电压和电流约束。在此基础上,获得了电机全速度范围内的最优运行轨迹,并且提出了四区间电流规划方法,为多相永磁同步电机的控制策略研究提供了理论基础。考虑电机的耦合特性,根据最优运行轨迹提出了一种可以近似实现凸极式双Y移相30°的永磁同步电机的全速度范围的多维最优矢量控制的方法,完善了多相永磁同步电机的多维矢量控制理论,为需要谐波控制的场合提供了一种有效的控制方法,实验验证该方法的可行性。
In order to realize the optimal harm- onic control of multi-phase permanent magnet synchro- nous motors, this paper established a mathematical model of salient-pole permanent magnet synchronous motors with double Y-connected phase-shift 30° windings. And voltage and current limitations ware derived according to the output capacity of inverters. On this basis, the optimal current trajectory in full speed range is gained. And the four-interval current planning is proposed. It provides a theoretical basis for research on the multi-phase permanent magnet synchronous motor control strategy. Besides, this paper proposed an approximate multi-dimensional vector control method of salient-pole permanent magnet synchronous motors with double Y-connected phase-shift 30° windings in full speed range. And it can be applied for some situations in which harmonic control is needed. Experiment results verified its feasibility.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2015年第10期2534-2543,共10页
Proceedings of the CSEE
基金
国家自然科学基金重点项目(61034007)~~
关键词
多维优化矢量控制
多相永磁同步电机
电压约束
电流规划
耦合
multi-dimensional optimal vector control
multi-phase permanent magnet synchronous motor
voltage limitation
current planning
coupling
