The aim of this paper is to investigate an adaptive sensorless direct voltage control(DVC)strategy for the stand-alone ship shaft brushless doubly-fed induction generators(BDFIGs).The proposed new rotor position obser...The aim of this paper is to investigate an adaptive sensorless direct voltage control(DVC)strategy for the stand-alone ship shaft brushless doubly-fed induction generators(BDFIGs).The proposed new rotor position observer using the space vector flux relations of BDFIG may achieve the desired voltage control of the power winding(PW)in terms of magnitude and frequency,without any speed/position sensors.The proposed algorithm does not require any additional observers for obtaining the generator speed.The proposed technique can directly achieve the desired DVC based on the estimated rotor position,which may reduce the overall system cost.The stability analysis of the proposed observer is investigated and confirmed with the concept of quadratic Lyapunov function and using the multi-model representation.In addition,the sensitivity analysis of the presented method is confirmed under different issues of parameter uncertainties.Comprehensive results from both simulation and experiments are realized with a prototype wound-rotor BDFIG,which demonstrate the capability and efficacy of the proposed sensorless DVC strategy with good transient behavior under different operating conditions.Furthermore,the analysis confirms the robustness of the proposed observer via the machine parameter changes.展开更多
本文在交流电机广义派克方程的基础上提出了一种定子磁通控制方法。这种方法把参数坐标系放在同步旋转磁通上,并使 d 轴与定子电压矢量重合,并根据磁通不变条件求得其动态控制规律。为实现上述控制规律,须观测某些派克方程状态变量。仿...本文在交流电机广义派克方程的基础上提出了一种定子磁通控制方法。这种方法把参数坐标系放在同步旋转磁通上,并使 d 轴与定子电压矢量重合,并根据磁通不变条件求得其动态控制规律。为实现上述控制规律,须观测某些派克方程状态变量。仿真和实验结果证明,此规律不但避免了传统矢量控制系统中繁杂的坐标变换问题,还可使得磁通和转矩的控制完全解耦。因此,在此基础上可方便地实现速度和位置控制。展开更多
基金This work was supported in part by the National Natural Science Foundation of China(NSFC)under Grants 51707079 and 51877093in part by the National Key Research and Development Program of China(Project ID:YS2018YFGH000200)in part by the Fundamental Research Funds for the Central Universities(Project ID:2019kfyXMBZ031).
文摘The aim of this paper is to investigate an adaptive sensorless direct voltage control(DVC)strategy for the stand-alone ship shaft brushless doubly-fed induction generators(BDFIGs).The proposed new rotor position observer using the space vector flux relations of BDFIG may achieve the desired voltage control of the power winding(PW)in terms of magnitude and frequency,without any speed/position sensors.The proposed algorithm does not require any additional observers for obtaining the generator speed.The proposed technique can directly achieve the desired DVC based on the estimated rotor position,which may reduce the overall system cost.The stability analysis of the proposed observer is investigated and confirmed with the concept of quadratic Lyapunov function and using the multi-model representation.In addition,the sensitivity analysis of the presented method is confirmed under different issues of parameter uncertainties.Comprehensive results from both simulation and experiments are realized with a prototype wound-rotor BDFIG,which demonstrate the capability and efficacy of the proposed sensorless DVC strategy with good transient behavior under different operating conditions.Furthermore,the analysis confirms the robustness of the proposed observer via the machine parameter changes.
文摘本文在交流电机广义派克方程的基础上提出了一种定子磁通控制方法。这种方法把参数坐标系放在同步旋转磁通上,并使 d 轴与定子电压矢量重合,并根据磁通不变条件求得其动态控制规律。为实现上述控制规律,须观测某些派克方程状态变量。仿真和实验结果证明,此规律不但避免了传统矢量控制系统中繁杂的坐标变换问题,还可使得磁通和转矩的控制完全解耦。因此,在此基础上可方便地实现速度和位置控制。
