National Instruments Xmath Interactive Control Design Module ICDM Manuel d'utilisateur Page 61
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Chapter 6 Pole Place Synthesis
Xmath Interactive Control Design Module 6-6 ni.com
A circle of radius F
avg
also is displayed in the plot. You also can drag the
circle to change F
avg
.
Butterworth Configuration
Click the Butterworth button to move the poles to a Butterworth
configuration, preserving F
avg
. The initial pole configuration also is
set to Butterworth.
Editing the Closed-Loop Poles
You can change the closed-loop poles two ways: by editing or by grabbing
and dragging them. Both of these methods are described in the General
Plotting Features section of Chapter 2, Introduction to SISO Design.
Slider and Plot Ranges
To change the ranges of the Frequency Scaling slider or the plot of
closed-loop poles, select View»Ranges or press <Ctrl-R> in the Pole Place
window.
The slider range also will be changed automatically if you type a new value
which is outside the current range in the variable edit box. The plot also can
be re-ranged interactively by grabbing and dragging the plot axes; refer to
the General Plotting Features section of Chapter 2, Introduction to SISO
Design.
Selecting View»Auto-scale or pressing <Ctrl-A> in the Root Locus
window will cause new ranges to be assigned to the slider and plot,
based on the current controller.
- NI MATRIXx 1
- Important Information 3
- Conventions 4
- Chapter 3 6
- Chapter 4 6
- Chapter 11 9
- Chapter 12 9
- LQG/H-Infinity Synthesis 9
- Contents 10
- Introduction 11
- Chapter 1 Introduction 12
- Commonly-Used Nomenclature 13
- Related Publications 13
- ICDM Overview 14
- Introduction to SISO Design 16
- Overview of ICDM 18
- ICDM Main Window 19
- PID Synthesis Window 19
- Root Locus Synthesis Window 19
- Pole Place Synthesis Window 19
- LQG Synthesis Window 20
- H-Infinity Synthesis Window 20
- History Window 20
- Alternate Plant Window 20
- Origin of the Controller 21
- Using ICDM 24
- General Plotting Features 26
- Ranges of Plots and Sliders 26
- Data-Viewing Plots 27
- Interactive Plot Re-ranging 28
- Editing Poles and Zeros 28
- Complex Poles and Zeros 29
- Isolated Real Poles and Zeros 29
- Communicating with Xmath 33
- Most Common Usage 34
- Default Plants 34
- Chapter 3 ICDM Main Window 35
- ICDM Plots 36
- Selecting Plots 36
- Ranges of Plots 37
- Plot Magnify Windows 38
- Edit Menu 40
- PID Synthesis 41
- Chapter 4 PID Synthesis 42
- Ranges of Sliders and Plots 45
- Integral Term Normalization 45
- Derivative Term Normalization 46
- Rolloff Term Normalization 46
- Root Locus Synthesis 47
- Terminology 49
- Plotting Styles 50
- Phase Contours 51
- Magnitude Contours 51
- Manipulating the Parameters 52
- Adding a Pole-Zero Pair 53
- Deleting Pole-Zero Pairs 53
- Pole Place Synthesis 56
- Pole Place Modes 57
- Normal Mode 58
- Integral Action Mode 59
- State-Space Interpretation 60
- Opening the Pole Place Window 60
- Time and Frequency Scaling 60
- Butterworth Configuration 61
- Editing the Closed-Loop Poles 61
- Slider and Plot Ranges 61
- LQG Synthesis 62
- Chapter 7 LQG Synthesis 63
- Synthesis Modes 64
- Output Weight Editing 67
- R in the LQG window 69
- window 69
- H-Infinity Synthesis 70
- Opening the Synthesis Window 72
- Central H-Infinity Controller 73
- Infeasible Parameter Values 75
- Editing the Comments 78
- Deleting History List Entries 79
- Cycling Through Designs 79
- Using the History List 80
- Normalization 84
- Adding Unmodeled Dynamics 85
- Ranges of Sliders and Plot 86
- Introduction to MIMO Design 87
- Transfer Functions 88
- ICDM MIMO Windows 91
- MIMO Plot Window 92
- LQG/H-Infinity Weights Window 96
- Decay Rate Window 99
- H-Infinity Performance Window 99
- Frequency Weights Window 100
- Setup and Terminology 102
- Integral Action 105
- Exponential Time Weighting 106
- Weight Editing 106
- How to Select w, u, y, and z 107
- H-Infinity Solution 108
- Main Window 110
- in the LQG window 111
- Multi-Loop Synthesis 112
- Setup and Synthesis Method 114
- Graphical Editor 118
- Editing and Deleting Loops 119
- Loop Gain Magnitude and Phase 119
- Using an Xmath GUI Tool 120
- GUI Functions 122
- GUI Objects 122
- and the left mouse button 123
- Technical Support and 126
- Professional Services 126
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