RMxprt training: DFIG

1.

RMxprt training:
DFIG
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2.

新的电机类型 通用旋转电机
Generic Rotating Machines (GRM)
Source Type
AC
DC
Structure
Inner Rotor
Outer Rotor
Axial-Flux Rotor
Stator Type
SLOT_AC
SLOT_AC1;
SALNT_POLE;
SALNT_SHAD; SALNT_DCM;
NONS_SLOT; PM_SURFACE;
PM_INTERIOR; PM_CLAW;
AXIAL_AC;
AXIAL_PM
Rotor Type
SLOT_AC
SLOT_DC;
SLOT_CAGE;
SALNT_POLE; NONS_SLOT;
NONS_RELU; PM_SURFACE;
PM_INTERIOR; PM_CLAW;
AXIAL_AC;
AXIAL_PM;
AXIAL_DC;
AXIAL_CAGE
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3.

新的电机类型 通用旋转电机
Generic Rotating Machines (GRM)
(SLOT_AC Stator Core) + (SLOT_AC Rotor Core)
= Doubly-Fed Induction Generator (DFIG)
(SLOT_AC1 Stator Core) + (SLOT_CAGE Rotor Core)
= Single-Phase Induction Motor (IndM1)
(SLOT_AC Stator Core) + (SALNT_POLE Rotor Core)
= Synchronous Motor / Generator (SynM)
(SALNT_DCM Stator Core) + (SLOT_DC Rotor Core)
= DC Motor / Generator (DCM)
(PM_SURFACE Stator Core) + (SLOT_DC Rotor Core)
= PM DC Motor / Generator (PMDC)
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4.

通用旋转电机(GRM)
轴向磁场电机
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5.

通用旋转电机(GRM)
新的IPM电机
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6.

风力发电系统
The converter rating is
reduced to about 15%
of the rated power.
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7.

风力机的空气动力学功率
1
P R 2 c p v3
2
the air density
R the turbine radius
v the wind velocity (m/s)
cp(l) the power coefficient,
the ratio of the turbine
At lopt, cp is at its maximum,
power to the wind power
then turbine power is
as a function of the tip
Pmax = k wt3
speed ratio l=R wt/v
5
3
wt the turbine speed (rad/s) where k = ( /2) R /lopt cpmax
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8.

风力机的最大功率点跟踪
For a given wind velocity
v = v1, the P(wt) curve is
the same as the cp(l)
curve. For the optimized
constant tip speed ratio
lopt, as long as the load
torque of the wind
turbine (or the input
power of DFIG) is
Pm = Pref (wm /wref)3
where Pref /wref3 = k is
determined by lopt, the
wind turbine will always
work at maximum
efficiency for various
wind velocities.
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