Tài liệu High Performance Driver P2 pdf
Tài liệu High Performance Driver P2 pdf
... the considerations of this sub-section and discussion of high performance DC motor
drives, the following statements can be made:
• High performance operation requires that the electro-magnetic ... the motor is highly oscillatory during the transient.
It even takes negative values in some instants, during which the speed reduces rather than increases.
Recall that in a high performan...
Tài liệu High Performance Driver P6b pdf
... HIGH PERFORMANCE DRIVES
E Levi, 2001
63
Summarising the procedure: speed loop is held open, d-axis ... constant:
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mm
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rrr
===
===
=+=
== =
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046 63 73ms
π
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γγ
γ
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/.
.
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H
H
H
HIGH PERFORMANCE DRIVES
E Levi, 2001
64
ψ
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Tài liệu High Performance Driver P1 ppt
... (2.56).
Additionally, transition from one vector to the other takes place at much higher frequency than the
HIGH PERFORMANCE DRIVES
E Levi, 2001
32
output frequency and each vector is utilised ... the
HIGH PERFORMANCE DRIVES
E Levi, 2001
35
inverter is now capable of controlling both the frequency and the rms value of the fundamental
component of the output voltage. Additional...
Tài liệu High Performance Driver P3 doc
... direct stator flux oriented control
in high speed and field-weakening region (the notions of indirect and direct vector control will be
explained shortly).
HIGH PERFORMANCE DRIVES
E Levi, 2001
50
regarded ... HIGH PERFORMANCE DRIVES
E Levi, 2001
41
3. ROTOR FLUX ORIENTED CONTROL OF INDUCTION MACHINES
3.1. ... fixed sensors are used in the air-gap of the machine, displaced by...
Tài liệu High Performance Driver P5a pptx
... HIGH PERFORMANCE DRIVES
E Levi, 2001
50
regarded as constant). Equations derived for the current-fed ... fixed sensors are used in the air-gap of the machine, displaced by 90 degrees). Magnitude and
HIGH PERFORMANCE DRIVES
E Levi, 2001
51
position of the rotor flux space vector can then be obtained ... (2.24)-(2.26), together with flux linkage equations (2.21), suggests the fo...
Tài liệu High Performance Driver P5b docx
... HIGH PERFORMANCE DRIVES
E Levi, 2001
56
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-j ... rotor flux is established in the machine, speed command equal to −40 % of the rated speed is
HIGH PERFORMANCE DRIVES
E Levi, 2001
57
applied through a rate-of-change li...
Tài liệu High Performance MySQL pdf
... High Performance MySQL: Optimi-
zation, Backups, Replication, and More, Second Edition, by Baron Schwartz et al.
Copyright 2008 O’Reilly Media, Inc., 9780596101718.”
156
|
Chapter 4: Query Performance ... join strategy later in this
chapter.)
160
|
Chapter 4: Query Performance Optimization
Query Execution Basics
If you need to get high performance from your MySQL server, one of the...
Tài liệu High Performance Computing on Vector Systems-P1 pdf
... for the connection of the
latest, highly reliable, high performance peripheral devices such as RAID disks.
FC offers the advantages of connectivity to newer high performance RAID stor-
age systems ... Nisshin-cho, Fuchu, Tokyo, Japan,
4
NEC High Performance Computing Europe GmbH,
Prinzenallee 11, D-40549 D¨usseldorf, Germany
Abstract In 2003, the High Performance Computing Cent...
Tài liệu High Performance Computing on Vector Systems-P2 pptx
... (2005)
submitted.
Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
Performance Evaluation of Lattice-Boltzmann
Magnetohydrodynamics ... purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
Vectors, Attack of the Killer Micros 31
Table 1. Fraction of the SIP-solver...
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