The purpose of Dorf’s Modern Control Systems, Thirteenth Edition is to present the structure of feedback control theory and to provide a sequence of exciting discoveries. The book demonstrates various real-world, global engineering problems while touching on evolving design strategies like green technology. Some of the themes at-hand include climate change, clean water, sustainability, waste management, emissions reduction, and minimizing energy. Throughout the text, the reader applies theory to the design and analysis of control systems. The Thirteenth Edition continues to explore the role of and need for automated and precise control systems in green engineering. Key examples of green engineering, such as wind turbine control and the modeling of a photovoltaic generator to achieve maximum power delivery, are discussed in detail. The text is organized around the concept of control systems theory in the context of frequency and time domains. Written to be equally useful for all engineering disciplines, it covers topics such as classical control, employing root locus design, frequency and response design using Bode and Nyquist plots.
Author(s): Richard C. Dorf, Robert H. Bishop
Edition: 13
Publisher: Pearson
Year: 2017
Language: English
Pages: 1106
Tags: Control Systems
Cover......Page 1
Title Page ......Page 2
Copyright Page ......Page 5
Brief Contents ......Page 8
Contents ......Page 10
Preface ......Page 16
About the Authors ......Page 28
Introduction to Control Systems ......Page 32
1.1 Introduction ......Page 33
1.2 Brief History of Automatic Control ......Page 36
1.3 Examples of Control Systems ......Page 42
1.4 Engineering Design ......Page 49
1.5 Control System Design ......Page 50
1.6 Mechatronic Systems ......Page 53
1.7 Green Engineering ......Page 57
1.8 The Future Evolution of Control Systems......Page 58
1.9 Design Examples ......Page 60
1.10 Sequential Design Example: Disk Drive Read System ......Page 64
Skills Check ......Page 67
Exercises ......Page 70
Problems ......Page 71
Advanced Problems ......Page 76
Design Problems ......Page 79
Terms and Concepts ......Page 81
Mathematical Models of Systems ......Page 82
2.2 Differential Equations of Physical Systems ......Page 83
2.3 Linear Approximations of Physical Systems ......Page 88
2.4 The Laplace Transform......Page 91
2.5 The Transfer Function of Linear Systems......Page 98
2.6 Block Diagram Models ......Page 110
2.7 Signal-Flow Graph Models......Page 115
2.8 Design Examples ......Page 122
2.9 The Simulation of Systems Using Control Design Software......Page 139
2.10 Sequential Design Example: Disk Drive Read System ......Page 153
2.11 Summary ......Page 156
Skills Check ......Page 157
Exercises ......Page 161
Problems ......Page 167
Advanced Problems ......Page 179
Design Problems ......Page 181
Computer Problems ......Page 183
Terms and Concepts......Page 185
State Variable Models ......Page 187
3.2 The State Variables of a Dynamic System......Page 188
3.3 The State Differential Equation......Page 191
3.4 Signal-Flow Graph and Block Diagram Models......Page 197
3.5 Alternative Signal-flow Graph and Block Diagram Models ......Page 208
3.6 The Transfer Function from the State Equation......Page 212
3.7 The Time Response and the State Transition Matrix......Page 213
3.8 Design Examples ......Page 217
3.9 Analysis of State Variable Models Using Control Design Software ......Page 231
3.10 Sequential Design Example: Disk Drive Read System ......Page 235
3.11 Summary ......Page 238
Skills Check......Page 239
Exercises......Page 242
Problems......Page 245
Advanced
Problems......Page 253
Design Problems......Page 255
Computer Problems......Page 256
Terms and Concepts......Page 257
Feedback Control System Characteristics ......Page 259
4.1 Introduction ......Page 260
4.2 Error Signal Analysis ......Page 262
4.3 Sensitivity of Control Systems to Parameter Variations ......Page 264
4.4 Disturbance Signals in a Feedback Control System ......Page 267
4.5 Control of the Transient Response ......Page 272
4.6 Steady-State Error......Page 275
4.7 The Cost of Feedback......Page 277
4.8 Design Examples ......Page 278
4.9 Control System Characteristics Using Control Design Software ......Page 288
4.10 Sequential Design Example: Disk Drive Read System ......Page 294
4.11 Summary ......Page 298
Skills Check......Page 299
Exercises......Page 303
Problems......Page 307
Advanced
Problems......Page 313
Design Problems......Page 316
Computer Problems......Page 320
Terms and Concepts......Page 323
The Performance of Feedback Control Systems ......Page 324
5.2 Test Input Signals ......Page 325
5.3 Performance of Second-Order Systems......Page 328
5.4 Effects of a Third Pole and a Zero on the Second-Order System Response......Page 333
5.5 The s-Plane Root Location and the Transient Response......Page 338
5.6 The Steady-State Error of Feedback Control Systems......Page 340
5.7 Performance Indices ......Page 347
5.8 The Simplification of Linear Systems......Page 352
5.9 Design Examples ......Page 355
5.10 System Performance Using Control Design Software ......Page 367
5.11 Sequential Design Example: Disk Drive Read System ......Page 373
5.12 Summary ......Page 375
Skills Check ......Page 376
Exercises ......Page 379
Problems ......Page 382
Advanced Problems ......Page 388
Design Problems ......Page 390
Computer Problems ......Page 393
Terms and Concepts......Page 396
The Stability of Linear Feedback Systems ......Page 397
6.1 The Concept of Stability......Page 398
6.2 The Routh–Hurwitz Stability Criterion......Page 402
6.3 The Relative Stability of Feedback Control Systems......Page 410
6.4 The Stability of State Variable Systems......Page 411
6.5 Design Examples ......Page 414
6.6 System Stability Using Control Design Software ......Page 422
6.7 Sequential Design Example: Disk Drive Read System ......Page 428
6.8 Summary ......Page 430
Skills Check ......Page 431
Exercises ......Page 434
Problems ......Page 436
Advanced Problems ......Page 441
Design Problems ......Page 444
Computer Problems ......Page 446
Terms and Concepts ......Page 448
The Root Locus Method ......Page 449
7.2 The Root Locus Concept......Page 450
7.3 The Root Locus Procedure......Page 455
7.4 Parameter Design by the Root Locus Method ......Page 469
7.5 Sensitivity and the Root Locus ......Page 475
7.6 PID Controllers......Page 480
7.7 Negative Gain Root Locus ......Page 491
7.8 Design Examples ......Page 496
7.9 The Root Locus Using Control Design Software......Page 505
7.10 Sequential Design Example: Disk Drive Read System ......Page 511
7.11 Summary ......Page 513
Skills Check ......Page 517
Exercises ......Page 521
Problems ......Page 525
Advanced Problems ......Page 534
Design Problems ......Page 538
Computer Problems ......Page 544
Terms and Concepts ......Page 546
Frequency Response Methods ......Page 548
8.1 Introduction ......Page 549
8.2 Frequency Response Plots ......Page 551
8.3 Frequency Response Measurements ......Page 572
8.4 Performance Specifications in the Frequency Domain ......Page 574
8.5 Log-Magnitude and Phase Diagrams......Page 577
8.6 Design Examples ......Page 578
8.7 Frequency Response Methods Using Control Design Software ......Page 587
8.8 Sequential Design Example: Disk Drive Read System ......Page 592
8.9 Summary ......Page 594
Skills Check ......Page 599
Exercises ......Page 604
Problems ......Page 607
Advanced Problems ......Page 616
Design Problems ......Page 618
Computer Problems ......Page 621
Terms and Concepts ......Page 623
Stability in the Frequency Domain ......Page 625
9.1 Introduction ......Page 626
9.2 Mapping Contours in the s-Plane......Page 627
9.3 The Nyquist Criterion......Page 633
9.4 Relative Stability and the Nyquist Criterion ......Page 644
9.5 Time-Domain Performance Criteria in the Frequency Domain......Page 651
9.7 The Stability of Control Systems with Time Delays......Page 658
9.8 Design Examples ......Page 662
9.9 PID Controllers in the Frequency Domain......Page 680
9.10 Stability in the Frequency Domain Using Control Design Software ......Page 681
9.11 Sequential Design Example: Disk Drive Read System ......Page 689
9.12 Summary ......Page 692
Skills Check ......Page 701
Exercises ......Page 704
Problems ......Page 710
Advanced Problems ......Page 720
Design Problems ......Page 723
Computer Problems ......Page 728
Terms and Concepts ......Page 730
The Design of Feedback Control Systems ......Page 731
10.1 Introduction ......Page 732
10.2 Approaches to System Design ......Page 733
10.3 Cascade Compensators ......Page 734
10.4 Phase-Lead Design Using the Bode Plot......Page 738
10.5 Phase-Lead Design Using the Root Locus......Page 744
10.6 System Design Using Integration Compensators ......Page 750
10.7 Phase-Lag Design Using the Root Locus......Page 753
10.8 Phase-Lag Design Using the Bode Plot......Page 756
10.9 Design on the Bode Plot Using Analytical Methods ......Page 761
10.10 Systems with a Prefilter ......Page 762
10.11 Design for Deadbeat Response ......Page 765
10.12 Design Examples ......Page 767
10.13 System Design Using Control Design Software ......Page 777
10.14 Sequential Design Example: Disk Drive Read System ......Page 784
10.15 Summary ......Page 786
Skills Check ......Page 787
Exercises ......Page 791
Problems ......Page 795
Advanced Problems ......Page 804
Design Problems ......Page 807
Computer Problems ......Page 811
Terms and Concepts ......Page 814
The Design of State Variable Feedback Systems ......Page 815
11.2 Controllability and Observability ......Page 816
11.3 Full-State Feedback Control Design......Page 822
11.4 Observer Design ......Page 828
11.5 Integrated Full-State Feedback and Observer......Page 832
11.6 Reference Inputs ......Page 838
11.7 Optimal Control Systems ......Page 840
11.8 Internal Model Design ......Page 848
11.9 Design Examples ......Page 851
11.10 State Variable Design Using Control Design Software ......Page 858
11.11 Sequential Design Example: Disk Drive Read System ......Page 863
Skills Check ......Page 865
Exercises ......Page 869
Problems ......Page 871
Advanced Problems ......Page 875
Design Problems ......Page 878
Computer Problems ......Page 881
Terms and Concepts ......Page 883
Robust Control Systems ......Page 885
12.1 Introduction ......Page 886
12.2 Robust Control Systems and System Sensitivity ......Page 887
12.3 Analysis of Robustness ......Page 891
12.4 Systems with Uncertain Parameters ......Page 893
12.5 The Design of Robust Control Systems......Page 895
12.6 The Design of Robust PID-Controlled Systems......Page 899
12.7 The Robust Internal Model Control System......Page 903
12.8 Design Examples ......Page 906
12.9 The Pseudo-Quantitative Feedback System......Page 917
12.10 Robust Control Systems Using Control Design Software ......Page 919
12.11 Sequential Design Example: Disk Drive Read System ......Page 922
12.12 Summary ......Page 924
Skills Check ......Page 926
Exercises ......Page 930
Problems ......Page 931
Advanced Problems ......Page 936
Design Problems ......Page 939
Computer Problems ......Page 944
Terms and Concepts ......Page 946
Digital Control Systems ......Page 948
13.2 Digital Computer Control System Applications ......Page 949
13.3 Sampled-Data Systems......Page 951
13.4 The Z-Transform......Page 954
13.5 Closed-Loop Feedback Sampled-Data Systems......Page 958
13.6 Performance of a Sampled-Data, Second-Order System......Page 962
13.7 Closed-Loop Systems with Digital Computer Compensation......Page 964
13.8 The Root Locus of Digital Control Systems......Page 967
13.10 Design Examples ......Page 971
13.11 Digital Control Systems Using Control Design Software ......Page 980
13.12 Sequential Design Example: Disk Drive Read System ......Page 985
Skills Check ......Page 987
Exercises ......Page 991
Problems ......Page 993
Advanced Problems ......Page 995
Design Problems ......Page 996
Computer Problems ......Page 998
Terms and Concepts......Page 999
References ......Page 1000
Index ......Page 1017
Appendix A MATLAB Basics......Page 1034
Appendix B MathScript RT Module Basics......Page 1052
Appendix C Symbols, Units, and Conversion Factors......Page 1077
Appendix D Laplace Transform Pairs......Page 1079
Appendix E An Introduction to Matrix Algebra......Page 1081
Appendix F Decibel Conversion......Page 1090
Appendix G Complex Numbers......Page 1091
Appendix H Z-Transform Pairs Preface......Page 1095
Appendix I Discrete-Time Evaluation of the Time Response......Page 1097
Cascade Compensators......Page 1105
A Summary of the Characteristics of Phase-Lead and Phase-Lag Compensators......Page 1106
