AC Machines System Development in the Practice
Content
- We apply the principles of vector direction and vector direction control systems to three AC machines.
- Inverter control with a vector modulation model.
- Mechanical engineering is required to design controllers and monitors.
- Orientation issues arise when measuring actual values.
- The three-phase frequency converter is equipped with both IM and PMSM.
- The current feedback is controlled to appear quickly in the drive system.
- Equilibrium methods are methods of determining system parameters.
- The rotor time constant for IM vehicles can be adjusted online.
- Better control over status variables and IM Drive scores
- The three-phase system has a nonlinear control structure.
- Wind turbines with DFIM
- The control system for wind energy cables is equipped with DFIM.
- The wind energy situation with DFIM is uncontrolled.
- Annex
- Phone book
Preface
The book’s friendly balance between concepts and design instructions garnered positive worldwide reception in the years following its initial publication, as the authors observed. More than five years have passed since the first expedition in 2008, and the development of technology has not been in vain. The field of wireless operating systems has made significant progress. This prompted the authors to incorporate new information into the second book, ensuring not only its preservation over time but also its alignment with the state of the art.
This second article delves into the concept of degrees of freedom in vector transformation, which was introduced in Part 1. Part 2 aims to finalize the six inverter control points. We present the flatness-controlled design concept of three AC machine systems in a straightforward and useful manner. The industry first introduced the concept of control. 3. 6. 2. Next, we determined the features of the IM, DFIM, and PMSM machine types. Researchers in the field of intentional practice struggle to understand more complex topics, but the authors see themselves as a bridge between theory and practice. They introduced clear graphics to the industry. 9. 2.2 IM, 9. 3.2 PMSM, and 11. 3 for DFIM. At the end of the article, the main design of the so-called rest-relaxation process of plateau-based control is given in Appendix A.5.The authors published this second edition with the help of their esteemed teacher, Prof. Dr.-Eng. suitable. Dr. Rolf Schönfeld, founder of the Dresden School of Electrical Engineering at TU Dresden. If he were alive, he would celebrate his 80th birthday on June 27, 2014.The authors extend their gratitude to Prof. We thank Uwe Fusel from TU Dresden for his help in editing this second edition. N. P. Quang should receive any comments and suggestions for improvement from the authors.
This book delves into the design and development of three-phase alternating current machines, including squirrel cage rotor (IM) particle induction motors, permanent magnet synchronous motors (PMSM), and two-phase generators (DFIM). Readers enthusiastically embraced the application-oriented and engineering-friendly approach of the German editions of this book, published by a specialist publishing house in 1993 and 1999. This experience inspired the authors to appeal to today’s audiences with this revised and expanded text in English. The new units take into account the latest developments in AC Drive technology on both the research and application side, providing the right amount of space to power two-phase machines and control the wireless motor.
The book focuses on vehicle control and mechanical systems and their controllable surfaces (speed and position) and provides the necessary scope for mechanical control functions. The latter form the basis of the operating system and can be divided into two groups:1. Basic algorithms include space vector modulation, current control, and rotor flux estimation. An operating system with the first set of functions can work satisfactorily. Integration of the second group can improve system signal quality parameters, change machine utilization and motor conversion, and support maintenance and commissioning.
After a summary of the basic characteristics of first- and three-phase alternating current motors and grid-controlled wind power plants, Sect. Chapter 1 discusses in detail inverter control for phase vector modulation, as shown in Figure 1. Use a few examples to illustrate the application. We derive the continuous and discrete machines of IM, PMSM, and DFIM from Chapter 2.3, based on the basic machine equations. Unstructured lines of machines are shown here. Chapter 4 answers some questions about idea generation and the implementation of executive control strategies. Later in Chapter 2.5, we will delve deeper into the design of a two-dimensional flow system using the discrete model, addressing other crucial issues like the control of limited variables. Various other operating systems were introduced.
Episodes. Figure 6 showcases the group’s advanced control algorithm, which addresses issues like identifying machine parameters based on nameplate numbers and automating precise parameter identification. Chapter 7 delves deeper into the complexity of adaptation by exploring the process of adapting rotors to the time constant IM, a crucial issue for many engines. Energy efficiency issues significantly impact the effectiveness of the engine, particularly in high-powered vehicles. Chapter 8 focuses on these issues, particularly efficiency and optimal torque control strategies in the context of variable limit states.AC control software typically has linear algorithms, but the machine itself is characterized by a nonlinear operating model and a nonlinear operating state (limited by state variables) so that it can be described. An operating system that controls the wireless system from the beginning can be successful in most cases. Chapter 1. 9 introduces the true linear classification method, while Chapter 9. 11 provides more detailed information about the DFIM process. Prior to this, Section 10 introduces the control system of wind power plants with DFIM, a practice that has become very useful in recent years.
During the preparation of this book, the authors undertook to present the topics as accurately as possible, based on practical requirements. We explain the basic lesson in as much detail as necessary for our understanding; numerous illustrations, graphs, diagrams, and appendices support a detailed description of the design process.
The book is the culmination of the authors’ over 15 years of research and development. We hope to provide readers with not only a path, but also reliable and useful solutions to their systems and problems. Writers will appreciate this.
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