摘要
基于表面式永磁同步电机直接转矩控制系统电压矢量选择区域及电压矢量角度对转矩变化的影响,分析了不同角度电压矢量作用下的表面式永磁同步电机直接转矩控制电压矢量选择系统控制性能。基于不同角度电压矢量的控制效果,给出了一种自适应变角度电压矢量选择策略。仿真结果表明:本文给出的自适应变角度电压矢量选择策略在处于动态时选择对转矩变化作用较强的电压矢量,提高了系统动态性能;在处于稳态时选择对转矩变化作用较弱的电压矢量,减小了转矩脉动。仿真结果验证了本文给出的控制策略有效性。
Based on effects of voltage vectors with different angle on torque in surface permanent magnet synchronous motor (PMSM) direct torque control (DTC) system, control performance of different voltage vector angle selection strategies were studied. And an adaptive voltage vector selection strategy with variable angle was proposed. Compared with fixed angle selection strategy, which will select voltage vectors which have strong effects of torque to improve system dynamics in dynamic state and select voltage vectors which have weak effects of torque to decrease torque ripple in the steady state. Effectiveness of the proposed strategy was verified through simulation results.
作者
李耀华
师浩浩
任佳越
杨启东
孟祥臻
曲亚飞
LI Yaohua;SHI Haohao;REN Jiayue;YANG Qidong;MENG Xiangzhen;QU Yafei(School of Automobile, Chang’an University, Xi’an 710064,China)
出处
《微电机》
北大核心
2019年第6期57-61,共5页
Micromotors
基金
国家自然科学基金(51207012)
陕西省工业科技攻关项目(2016GY-069)
陕西省微特电机及驱动技术重点实验室开放基金(2013SSJ2002)
中央高校基本科研业务费专项资金资助项目(300102228201)
关键词
永磁同步电机
直接转矩控制
电压矢量选择
自适应控制
permanent magnet synchronous motor
direct torque control
voltage vector selection
adaptive control
