About Book

A distributed control system is a control system for a process or plant, wherein control elements are distributed throughout the system. This is contrast to non-distributed systems, which use a single controller at a central location. Developing distributed control system is a major industrial concern since those systems are more and more complex and involved in many critical application fields. The distribution feature of these systems is not without consequences on both the development process and the exploitation of the system: the global behaviour of the system is more complex since distribution introduces new operating modes — abnormal modes. Distributed Control Systems (DCS) are hard to design, debug, test and formally verify. Moreover, the implementation would be eased using automatic methods of distribution which guarantee that the behaviour of the whole system is preserved. The book studies, analyses and uphold the pillars of this field and its utmost significance in modern times. It provides a unified approach of engineering methods, distributed spacecraft system, control system design, computer-aided control, robot systems, fuzzy systems, storage systems, architectures and advanced control solutions. It includes theory, analytical techniques, popular computer tools, simulation details, and applications. It picks up individual branches and explains their need and contribution in the context of the growth of this subject and technology. For all those who are interested in control system, it can prove to be an essential guide.

Preface............................................................................................................v

Chapter 1 Distributed Control Systems for a Wastewater Treatment Plant: Architectures and Advanced Control Solutions..................................1

Abstract ..................................................................................................1

1. Introduction ..........................................................................................1

2. Description of the technological process flow ...............................4

3. A distributed control solution for the wastewater treatment

process: WTP Calafat ..........................................................................8

4. Advanced control solutions for the activated sludge

bioprocess ............................................................................................14

5. Conclusions .........................................................................................33

Acknowledgements ...........................................................................34

Conflict of interest .............................................................................35

Chapter 2 Energy Efficiency Improvements in a Distribution Network based on Local Voltage Control using Energy Storage Systems and

Active Loads...............................................................................................38

1. Introduction..........................................................................................38

2. Distributed energy network architecture ......................................39

3. Distributed energy resources components modeling .................42

4. Control strategies of DER components in a distribution

network.................................................................................................54

5. Conclusion ...........................................................................................66

Chapter 3 Delay-Dependent Generalized H2 Control for Discrete-Time Fuzzy Systems with Infinite-Distributed Delays..........................................71

1. Introduction..........................................................................................71

2. Problem Formulation..........................................................................73

3. Main Results.........................................................................................77

4. Numerical Examples...........................................................................84

5. Conclusions..........................................................................................89

Chapter 4 Implementation of Distributed Control Architecture for Multiple

Robot Systems Using Petri Nets...........................................................93

1. Introduction ........................................................................................93

2. Net models of robotic processes ....................................................95

3. Synchronization and coordination ...............................................102

4. Net based multiple robot coordination .......................................104

5. Implementation of net based control system .............................111

6. Conclusions .......................................................................................114

Chapter 5 A Computer-Aided Control and Diagnosis of Distributed Drive

Systems......................................................................................................117

1. Introduction........................................................................................117

2. Problems connected with the maintenance of distributed

systems................................................................................................118

3. Integration of diagnostic and control functions.........................122

4. Embedded functions of identification and interpretation of

errors....................................................................................................131

5. An investigation of the impact of volume and syntax of the

algorithm at the performance of the PLC controller.................140

6. Conclusions........................................................................................145

Chapter 6 Real-Time Petri Net Based Control System Design for Distributed

Autonomous Robotic Manufacturing Systems................................149

1. Introduction........................................................................................149

2. Modeling of discrete event manufacturing systems with Petri

nets.......................................................................................................151

3. Edition and simulation of net models..........................................154

4. Net models of multitasking control..............................................160

5. Implementation of real-time control system for robotic cells..163

6. Conclusions........................................................................................167

Chapter 7 Coordination Control of Distributed Spacecraft System..............169

1. Introduction........................................................................................169

2. Preliminaries.......................................................................................172

3. Relative orbit estimation..................................................................177

4. Relative orbit control........................................................................183

5. Processor-in-the-loop simulation system for distributed

spacecraft............................................................................................196

6. Conclusions........................................................................................201

Chapter 8 Control of Distributed Parameter Systems - Engineering Methods

and Software Support in the MATLAB & Simulink Programming

Environment ...........................................................................................205

1. Introduction........................................................................................205

2. DPS – DDS – LDS.............................................................................207

3. Decomposition of dynamics ..........................................................209

4. Distributed parameter systems of control....................................212

5. Distributed Parameter Systems Blockset for MATLAB &

Simulink..............................................................................................225

6. Interactive control via the Internet................................................229

7. Conclusion..........................................................................................229

8. Acknowledgment..............................................................................230

Citation......................................................................................................233

Index...........................................................................................................235

About Author

Calanthia Spezia received her Ph.D. in Electrical Engineering from Public University of Technology, Milan. She is a Research Associate at Community College, Burgos. She has written numerous articles and research papers on power engineering, telecommunications, control systems, radio-frequency engineering, and signal processing. Her interest areas of working are electric safety, system's operation and control power systems, renewable energy, and intelligent systems. Spezia is an active member of several scientific and technical societies, where she shares her expertise and knowledge in the field of control systems engineering.