一、Park变换
坐标关系:
I d = I α ∗ c o s θ e + I β ∗ s i n θ e I_d = I_\alpha*cos\theta_e + I_\beta*sin\theta_e Id=Iα∗cosθe+Iβ∗sinθe
I q = − I α ∗ s i n θ e + I β ∗ c o s θ e I_q = -I_\alpha*sin\theta_e + I_\beta*cos\theta_e Iq=−Iα∗sinθe+Iβ∗cosθe
坐标转换矩阵:
T 2 s / 2 r = [ cos ( θ e ) sin ( θ e ) − sin ( θ e ) cos ( θ e ) ] T_{2s/2r} = \begin{bmatrix} \cos(\theta_e ) & \sin(\theta_e ) \\ -\sin(\theta_e ) & \cos(\theta_e) \end{bmatrix} T2s/2r=[cos(θe)−sin(θe)sin(θe)cos(θe)]
坐标转换公式:
[ i d i q ] = T 2 s / 2 r [ i α i β ] \begin{bmatrix} i_{d} \\ i_{q} \end{bmatrix} =T_{2s/2r} \begin{bmatrix} i_{\alpha} \\ i_{\beta} \end{bmatrix} [idiq]=T2s/2r[iαiβ]
结果关系:
[ i d i q ] = [ cos ( θ e ) sin ( θ e ) − sin ( θ e ) cos ( θ e ) ] [ i α i β ] \begin{bmatrix} i_{d} \\ i_{q} \end{bmatrix} = \begin{bmatrix} \cos(\theta_e) & \sin(\theta_e) \\ -\sin(\theta_e) & \cos(\theta_e) \end{bmatrix} \begin{bmatrix} i_{\alpha} \\ i_{\beta} \end{bmatrix} [idiq]=[cos(θe)−sin(θe)sin(θe)cos(θe)][iαiβ]
二、反Park变换
坐标转换矩阵:
T 2 r / 2 s = T 2 s / 2 r − 1 = [ cos ( θ e ) − sin ( θ e ) sin ( θ e ) cos ( θ e ) ] T_{2r/2s} = T_{2s/2r} ^{-1}= \begin{bmatrix} \cos(\theta_e) & -\sin(\theta_e) \\ \sin(\theta_e) & \cos(\theta_e) \end{bmatrix} T2r/2s=T2s/2r−1=[cos(θe)sin(θe)−sin(θe)cos(θe)]
坐标转换公式:
[ i α i β ] = T 2 r / 2 s [ i d i q ] \begin{bmatrix} i_{\alpha} \\ i_{\beta} \end{bmatrix} =T_{2r/2s} \begin{bmatrix} i_{d} \\ i_{q} \end{bmatrix} [iαiβ]=T2r/2s[idiq]
结果关系:
[ i α i β ] = [ cos ( θ e ) − sin ( θ e ) sin ( θ e ) cos ( θ e ) ] [ i d i q ] \begin{bmatrix} i_{\alpha} \\ i_{\beta} \end{bmatrix} =\begin{bmatrix} \cos(\theta_e) & -\sin(\theta_e) \\ \sin(\theta_e) & \cos(\theta_e) \end{bmatrix} \begin{bmatrix} i_{d} \\ i_{q} \end{bmatrix} [iαiβ]=[cos(θe)sin(θe)−sin(θe)cos(θe)][idiq]
坐标关系:
I α = I d ∗ c o s θ e − I q ∗ s i n θ e I_\alpha = I_d*cos\theta_e - I_q*sin\theta_e Iα=Id∗cosθe−Iq∗sinθe
I β = I d ∗ s i n θ e + I q ∗ c o s θ e I_\beta= I_d*sin\theta_e + I_q*cos\theta_e Iβ=Id∗sinθe+Iq∗cosθe