DQM¶

Appearance¶

parts

Description¶

DQM is a part that performs a DQ transformation as follows according to the input angle θe.

$\begin{bmatrix} x_d \\ x_q \\ x_0 \end{bmatrix} = \sqrt{\frac{2}{3}} \begin{bmatrix} cos( \theta_{e} ) & cos(\theta_{e} - \frac{2π}{3} ) & cos( \theta_{e} + \frac{2π}{3} ) \\ ∓sin(\theta_{e}) & ∓sin(\theta_{e} - \frac{2π}{3} ) & ∓sin(\theta_{e} + \frac{2π}{3}) \\ \frac{1}{\sqrt{2}} & \frac{1}{\sqrt{2}} & \frac{1}{\sqrt{2}} \end{bmatrix} \begin{bmatrix} x_a \\ x_b \\ x_c \end{bmatrix}$

Info

The sign of the sin function is determined by the parameter SIN.

Note

This part is a discrete model. A discrete model performs a sample-and-hold operation.
The voltage is sampled at the beginning of each main period, and within that period the voltage is held and remains constant.

Terminals¶

Terminal	Name	Description	Function argument
a,b,c	Three-phase input terminals	These are the terminals for inputting the voltage [V] of each phase between them and the ground terminal described below.	symbol name.X (X = A,B,C)
θ	Transformation angle input terminal	This is the terminal for inputting `θe` in the expression above. The transformation angle [rad] is converted to a voltage and input between it and the ground terminal described below.	symbol name.TH
d,q,o	DQO terminals	Output the converted d, q, and o voltages [V] between them and the ground terminal described below.	symbol name.X (X = D,Q,O)
G	Ground terminal	This is the terminal that serves as the ground for the terminals described above.	symbol name.GND

Spec¶

Parameter	Description	Explanation	Parameter name
Sin	Sign of the sin function	The sign of the sin function is determined by the parameter Sin.	-
Power Invariant	Power invariant mode flag	OFF: relative, ON: absolute	-

Output variables¶

Parameter	Description	Output argument
0 Voltage	0 axis voltage	symbol name.V0
Angle Voltage	Electrical angle	symbol name.Vth
D Voltage	d axis voltage	symbol name.Vd
Phase-A Voltage	a phase voltage	symbol name.Va
Phase-B Voltage	b phase voltage	symbol name.Vb
Phase-C Voltage	c phase voltage	symbol name.Vc
Q Voltage	q axis voltage	symbol name.Vq