摘要
该文提出一种基于异步电机间接矢量控制的预测电流鲁棒控制方法。分析了传统间接矢量控制中电流环比例积分控制器带宽提升受限制的原因,提出基于同步旋转坐标下异步电机数学模型的预测电流控制方法,以提高系统带宽和动态性能。为了增强预测电流控制器的鲁棒性,分析了预测电流控制器使系统不稳定运行的原因,引入鲁棒控制因子来增强系统鲁棒性,降低预测电流控制器对电机参数的敏感度。实验结果表明,与传统的比例积分控制器相比,该文提出的预测电流鲁棒控制能有效增强系统的鲁棒性,提高系统响应速度并且优化系统动态特性。
This paper proposed a novel robust predictive control scheme, with indirect vector control system, for the induction motor. In order to improve the current loop bandwidth in control system, the restrictions to current-loop bandwidth improvement was analyzed. The predictive control scheme based on mathematical model of induction motor in synchronous frame was proposed to improve the current-loop bandwidth and the performance of dynamic response. Meanwhile reasons of destabilization in system were analyzed and two robust factors were added to predictive current controller to upgrade the robustness of system and reduce the sensitivity to motor parameters. Experiment results show that the proposed robust predictive current control scheme improves the robustness of control system, and increases system response time.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2014年第21期3448-3455,共8页
Proceedings of the CSEE
基金
伺服驱动及电机测试规范
标准研究与测试平台国家科技重大专项(2012ZX04001051)~~
关键词
异步电机
预测电流控制
矢量控制
鲁棒性
转子磁场定向
induction motor
predictive current control
vector control
system robustness
rotor flux orientation
