Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

AD2S100AP Scheda tecnica(PDF) 5 Page - Analog Devices

Il numero della parte AD2S100AP
Spiegazioni elettronici  AC Vector Processor
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

AD2S100AP Scheda tecnica(HTML) 5 Page - Analog Devices

  AD2S100AP Datasheet HTML 1Page - Analog Devices AD2S100AP Datasheet HTML 2Page - Analog Devices AD2S100AP Datasheet HTML 3Page - Analog Devices AD2S100AP Datasheet HTML 4Page - Analog Devices AD2S100AP Datasheet HTML 5Page - Analog Devices AD2S100AP Datasheet HTML 6Page - Analog Devices AD2S100AP Datasheet HTML 7Page - Analog Devices AD2S100AP Datasheet HTML 8Page - Analog Devices AD2S100AP Datasheet HTML 9Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 12 page
background image
AD2S100
REV. A
–5–
To relate these stator current to the reference frame the rotor
currents assume the same rectangular coordinates, but are now
rotated by the operator e
j , where ej = Cos
+ jSin
.
Here the term vector rotator comes into play where the stator
current vector can be represented in rotor-based coordinates or
vice versa.
The AD2S100 uses e
j
as the core operator. Here
represents
the digital position angle which rotates as the rotor moves. In
terms of the mathematical function, it rotates the orthogonal ids
and iqs components as follows:
ids' + jiqs' = (Ids + jIqs) e
j
where ids', iqs' = stator currents in the rotor reference frame. And
e
j
= Cos
+ jSin
= (Ids + jIqs)(Cos
+ jSin
)
The output from the AD2S100 takes the form of:
ids' = Ids Cos
– Iqs Sin
iqs' = Ids Sin
+ Iqs Cos
The matrix equation is:
[ids' ] = [Cos – Sin ][Ids]
iqs'
Sin
Cos
Iqs
and it is shown in Figure 2.
ids
iqs
ids'
iqs'
φ
e
Figure 2. AD2S100 Vector Rotation Operation
DIGITAL
φ
LATCH
3
φ + 2φ
TRANSFORMATION
SINE AND
COSINE
MULTIPLIER
(DAC)
SINE AND
COSINE
MULTIPLIER
(DAC)
Cos(
θ + φ)
Cos(
θ +(120
° + φ))
Cos(
θ +(240
° + φ))
PARK
OUTPUT CLARK
COS
θ
COS
θ + 120°
COS
θ + 240° SINθ
2
φ–3φ
INPUT CLARK
LATCH
LATCH
Figure 3. Converter Operation Diagram
THEORY OF OPERATION
A fundamental requirement for high quality induction motor
drives is that the magnitude and position of the rotating air-gap
rotor flux be known. This is normally carried out by measuring
the rotor position via a position sensor and establishing a rotor
reference frame that can be related to stator current coordinates.
To generate a flux component in the rotor, stator current is ap-
plied. A build-up of rotor flux is concluded which must be
maintained by controlling the stator current, ids, parallel to the
rotor flux. The rotor flux current component is the magnetizing
current, imr.
Torque is generated by applying a current component which is
perpendicular to the magnetizing current. This current is nor-
mally called the torque generating current, iqs.
To orient and control both the torque and flux stator current
vectors, a coordinate transformation is carried out to establish a
new reference frame related to the rotor. This complex calcula-
tion is carried out by the AD2S100 vector processor.
To expand upon the vector operator a description of a single
vector rotation is of assistance. If it is considered that the mod-
uli of a vector is OP and that through the movement of rotor
position by
, we require the new position of this vector it can
be deduced as follows:
Let original vector OP = A (Cos
+ jSIN ) where A is a
constant;
so if
OQ = OP e
j
(1)
and: e
j
= Cos
+ jSin
OQ = A (Cos ( + ) + jSin ( +
))
= A [Cos
Cos
φ – Sin Sin φ + jSin Cos φ + jCos Sin φ]
= A [(Cos
+ jSin ) (Cos
+ jSin
)]
(2)
θ
φ
θ + φ
Q
P
O
a
d
Figure 1. Vector Rotation in Polar Coordinate
The complex stator current vector can be represented as is = ias
+ aibs + a
2i
cs where a = e
j 2
π
3
and a
2 = e
j 4
π
3
. This can be re-
placed by rectangular coordinates as
is = ids + jiqs
(3)
In this equation ids and iqs represent the equivalent of a two-
phase stator winding which establishes the same magnitude of
MMF in a three-phase system. These inputs can be seen after
the three-phase to two-phase transformation in the AD2S100
block diagram. Equation (3) therefore represents a three-phase
to two-phase conversion.


Codice articolo simile - AD2S100AP

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Analog Devices
AD2S100 AD-AD2S100_15 Datasheet
1,015Kb / 12P
   AC Vector Processor
REV. A
More results

Descrizione simile - AD2S100AP

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Analog Devices
AD2S100 AD-AD2S100_15 Datasheet
1,015Kb / 12P
   AC Vector Processor
REV. A
logo
NXP Semiconductors
TDA9178 PHILIPS-TDA9178 Datasheet
227Kb / 36P
   YUV one chip picture improvement based on luminance vector-, colour vector- and spectral processor
1999 Sep 24
logo
List of Unclassifed Man...
BITSYG5 ETC2-BITSYG5 Datasheet
1Mb / 2P
   Vector Floating Point co-processor Hardware MPEG video encoder
logo
Merrimac Industries, In...
VMD-1Q-2.0G MERRIMAC-VMD-1Q-2.0G Datasheet
158Kb / 5P
   VECTOR MODULATOR
VM-MCM-1.9G MERRIMAC-VM-MCM-1.9G Datasheet
142Kb / 2P
   VECTOR MODULATOR
VMD-2Q-2.0G MERRIMAC-VMD-2Q-2.0G Datasheet
174Kb / 5P
   VECTOR MODULATOR
logo
Keysight Technologies
N9923A-112 KEYSIGHT-N9923A-112 Datasheet
2Mb / 18P
   Vector Network Analyzer
logo
Mini-Circuits
EVNA-63++ MINI-EVNA-63+ Datasheet
1Mb / 16P
   Vector Network Analyzer
REV. A
logo
Agilent(Hewlett-Packard...
HPMX-2007 HP-HPMX-2007 Datasheet
105Kb / 8P
   Vector Modulator/Mixer
logo
National Instruments Co...
PXIE-5663 NI-PXIE-5663 Datasheet
1Mb / 8P
   Vector Signal Analyzer
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


Scheda tecnica Scarica

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEETIT.COM
Lei ha avuto il aiuto da alldatasheet?  [ DONATE ] 

Di alldatasheet   |   Richest di pubblicita   |   contatti   |   Privacy Policy   |   scambio Link   |   Ricerca produttore
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com