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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. 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 « 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, students apply 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. »-- Résumé de l'éditeur Dorf's Modern Control Systems presents the structure of feedback control theory and provides a sequence of exciting discoveries. The text 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, you're prompted to apply theory to the design and analysis of control systems. The 13th 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, 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.