摘要
该文从同步速M-T坐标系下异步电机方程和异步电机矢量控制的基本原理出发,详细分析转子参数(电感和电阻) 对磁通检测式矢量控制性能的影响。考虑到实际实验系统中电机转子参数会随着电机的运行状态而改变,而MATLAB仿真软件电力系统工具箱中的异步电机模型在运行中不能实时改变自身的参数,运用MATLAB中的S函数自行编写能够模拟转子参数实时变化的电机模型。在此基础上建立整个异步电机矢量控制仿真系统,首次分别对忽略转子参数变化和考虑转子参数时变这两种情况下的系统进行仿真和分析。仿真结果表明实际中由于集肤效应产生的转子参数变化使异步电机矢量控制的动态性能变差。
On the basis of the asynchronous motor equations in the M - T reference frame rotating at synchronous speed, the paper, in detail, analyses the effect of the rotor parameters, including reluctance and inductance, on the performance of the Flux - Observation based Vector Control. Considering the time - varying of rotor parameters along with the running state in the real experimental systems and the AC motor model included in the SimPowerSystems of Maflab can not change its own rotor parameters with time, an AC model is built, which can simulate real - time changes of its rotor parameters by using S - Function in MATLAB. Based on the model, a Vector Control simulation system is established, and for the first time, respectively it is implemented that the simulation and analysis of the system on the condition of both neglecting and considering the time - varying of rotor parameters. The simulation results indicate that the variations of the rotor parameters resulting from the Skin Effect may make the dynamic performance of AC Vector Control get worse.
出处
《计算机仿真》
CSCD
2006年第1期299-303,共5页
Computer Simulation
关键词
异步电机
矢量控制
函数
动态仿真
Asynchronous machine
Vector control
Function
Dynamic simulation
