由于直接转矩控制策略对定子磁链和电磁转矩采取非线性滞环控制,电机的电磁转矩、磁链幅值、相电流存在稳态误差。该文提出基于空间矢量调制的异步电机直接转差线性控制策略(direct slip linear control based on space vector modulati...由于直接转矩控制策略对定子磁链和电磁转矩采取非线性滞环控制,电机的电磁转矩、磁链幅值、相电流存在稳态误差。该文提出基于空间矢量调制的异步电机直接转差线性控制策略(direct slip linear control based on space vector modulation,DSLC-SVM)。该策略不含坐标变换,无电流环,只需辨识定子磁链。与传统直接转矩控制策略相比,由于对转差进行直接线性控制,DSLC-SVM策略可以减小转矩和磁链误差,降低相电流的总谐波失真(total harmonic distortion,THD)。比较了2种控制策略改变转差的能力,通过对比实验,验证了该文所提算法的正确性和可行性。展开更多
The relationship between the surveying and contro l network(CSN) for earth-orbit satellite and spatial geodesy, and the relationshi p between the CSN for deep space celestial bodies and detectors, and deep space detec...The relationship between the surveying and contro l network(CSN) for earth-orbit satellite and spatial geodesy, and the relationshi p between the CSN for deep space celestial bodies and detectors, and deep space detection are briefly summarized, and so are the basic technical needs of the de ep space surveying and control network(DSN). Then, the techniques, the constitue nts and the distributing of Chinese satellite CSN (CSCSN) and other radio observ ing establishments in China are introduced. Lastly, with the primary CSCSN and o ther observing establishments, some projects for China to rebuild a more perfect CSCSN, and to establish a DSN are analyzed and stated.展开更多
文摘由于直接转矩控制策略对定子磁链和电磁转矩采取非线性滞环控制,电机的电磁转矩、磁链幅值、相电流存在稳态误差。该文提出基于空间矢量调制的异步电机直接转差线性控制策略(direct slip linear control based on space vector modulation,DSLC-SVM)。该策略不含坐标变换,无电流环,只需辨识定子磁链。与传统直接转矩控制策略相比,由于对转差进行直接线性控制,DSLC-SVM策略可以减小转矩和磁链误差,降低相电流的总谐波失真(total harmonic distortion,THD)。比较了2种控制策略改变转差的能力,通过对比实验,验证了该文所提算法的正确性和可行性。
文摘The relationship between the surveying and contro l network(CSN) for earth-orbit satellite and spatial geodesy, and the relationshi p between the CSN for deep space celestial bodies and detectors, and deep space detection are briefly summarized, and so are the basic technical needs of the de ep space surveying and control network(DSN). Then, the techniques, the constitue nts and the distributing of Chinese satellite CSN (CSCSN) and other radio observ ing establishments in China are introduced. Lastly, with the primary CSCSN and o ther observing establishments, some projects for China to rebuild a more perfect CSCSN, and to establish a DSN are analyzed and stated.
