摘要
针对常用的电压、电流模型以及复合观测器模型给出了统一的全阶观测器模型表达式,通过对反馈矩阵的不同配置可以得到不同的观测器,同时得出了全阶观测器在稳态时可以表示为电压模型与电流模型组成的复合模型的结论。采用间接磁场定向控制,在估算磁场定向的同步坐标系中推导出磁链观测器的估算磁链与电机实际磁链偏差,通过该偏差对不同磁链观测器的收敛性进行了比较分析。仿真试验对该结论进行了验证。
A unified full order flux observer expression for the common voltage model, current model and other complex model was presented, and they can be obtained by configuring feedback gain matrix differently. Meanwhile the full order observer can be expressed as the complex model made up from voltage and current model in steady state. In estimated flux oriented synchronous reference coordinate, the error between esti- mated and motor flux was deduced. The convergence comparison is done for the different observer based on the error. Simulation results validate the conclusions.
出处
《电气传动》
北大核心
2010年第3期23-27,共5页
Electric Drive
基金
湖北省自然科学基金资助项目(2007ABA281)
国家自然科学基金资助项目(60874047)
关键词
磁链观测器
反馈矩阵
收敛性
flux observer
feedback gain matrix
convergence
