About the Authors.
Preface.
Acknowledgements.
1 Introduction.
1.1 Wind Power Development.
1.2 Photovoltaic Power Development.
1.3 The Grid Converter – The Key Element in Grid Integration of WT and PV Systems.
2 Photovoltaic Inverter Structures.
2.1 Introduction.
2.2 Inverter Structures Derived from H-Bridge Topology.
2.3 Inverter Structures Derived from NPC Topology.
2.4 Typical PV Inverter Structures.
2.5 Three-Phase PV Inverters.
2.6 Control Structures.
2.7 Conclusions and Future Trends.
3 Grid Requirements for PV.
3.1 Introduction.
3.2 International Regulations.
3.3 Response to Abnormal Grid Conditions.
3.4 Power Quality.
3.5 Anti-islanding Requirements.
3.6 Summary.
4 Grid Synchronization in Single-Phase Power Converters.
4.1 Introduction.
4.2 Grid Synchronization Techniques for Single-Phase Systems.
4.3 Phase Detection Based on In-Quadrature Signals.
4.4 Some PLLs Based on In-Quadrature Signal Generation.
4.5 Some PLLs Based on Adaptive Filtering.
4.6 The SOGI Frequency-Locked Loop.
4.7 Summary.
5 Islanding Detection.
5.1 Introduction.
5.2 Nondetection Zone.
5.3 Overview of Islanding Detection Methods.
5.4 Passive Islanding Detection Methods.
5.5 Active Islanding Detection Methods.
5.6 Summary.
6 Grid Converter Structures forWind Turbine Systems.
6.1 Introduction.
6.2 WTS Power Configurations.
6.3 Grid Power Converter Topologies.
6.4 WTS Control.
6.5 Summary.
7 Grid Requirements for WT Systems.
7.1 Introduction.
7.2 Grid Code Evolution.
7.3 Frequency and Voltage Deviation under Normal Operation.
7.4 Active Power Control in Normal Operation.
7.5 Reactive Power Control in Normal Operation.
7.6 Behaviour under Grid Disturbances.
7.7 Discussion of Harmonization of Grid Codes.
7.8 Future Trends.
7.9 Summary.
8 Grid Synchronization in Three-Phase Power Converters.
8.1 Introduction.
8.2 The Three-Phase Voltage Vector under Grid Faults.
8.3 The Synchronous Reference Frame PLL under Unbalanced and Distorted Grid Conditions.
8.4 The Decoupled Double Synchronous Reference Frame PLL (DDSRF-PLL).
8.5 The Double Second-Order Generalized Integrator FLL (DSOGI-FLL).
8.6 Summary.
9 Grid Converter Control for WTS.
9.1 Introduction.
9.2 Model of the Converter.
9.3 AC Voltage and DC Voltage Control.
9.4 Voltage Oriented Control and Direct Power Control.
9.5 Stand-alone, Micro-grid, Droop Control and Grid Supporting.
9.6 Summary.
10 Control of Grid Converters under Grid Faults.
10.1 Introduction.
10.2 Overview of Control Techniques for Grid-Connected Converters under Unbalanced Grid Voltage Conditions.
10.3 Control Structures for Unbalanced Current Injection.
10.4 Power Control under Unbalanced Grid Conditions.
10.5 Flexible Power Control with Current Limitation.
10.6 Summary.
11 Grid Filter Design.
11.1 Introduction.
11.2 Filter Topologies.
11.3 Design Considerations.
11.4 Practical Examples of LCL Filters and Grid Interactions.
11.5 Resonance Problem and Damping Solutions.
11.6 Nonlinear Behaviour of the Filter.
11.7 Summary.
12 Grid Current Control.
12.1 Introduction.
12.2 Current Harmonic Requirements.
12.3 Linear Current Control with Separated Modulation.
12.4 Modulation Techniques.
12.5 Operating Limits of the Current-Controlled Converter.
12.6 Practical Example.
12.7 Summary.
Appendix A Space Vector Transformations of Three-Phase Systems.
A.1 Introduction.
A.2 Symmetrical Components in the Frequency Domain.
A.3 Symmetrical Components in the Time Domain.
A.4 Components αβ0 on the Stationary Reference Frame.
A.5 Components dq0 on the Synchronous Reference Frame.
Appendix B Instantaneous Power Theories.
B.1 Introduction.
B.2 Origin of Power Definitions at the Time Domain for Single-Phase Systems.
B.3 Origin of Active Currents in Multiphase Systems.
B.4 Instantaneous Calculation of Power Currents in Multiphase Systems.
B.5 The p-q Theory.
B.6 Generalization of the p-q Theory to Arbitrary Multiphase Systems.
B.7 The Modified p-q Theory.
B.8 Generalized Instantaneous Reactive Power Theory for Three-Phase Power Systems.
B.9 Summary.
Appendix C Resonant Controller.
C.1 Introduction.
C.2 Internal Model Principle.
C.3 Equivalence of the PI Controller in the dq Frame and the P+Resonant Controller in the αβ Frame.
Index.
Remus Teodorecsu is currently an Associate Professor at theInstitute of Technology, Aalborg University, teaching courses inpower electronics and electrical energy system control for mastersand PhD students. He has authored over 80 journal and conferencepapers, and one book Power Electronics: Computer Simulations(Technical Press Budapest, 1997), and also holds 3 patents. He isthe founder and coordinator of the Green Power Laboratory atAalborg University, focusing on the development and testing of gridconverters for renewable energy systems, and is also co-recipientof the Technical Committee Prize Paper Awards at IEEE IAS AnnualMeeting 1998, and IEEE Optim 2002. His research interests are inthe design and control of power converters used in renewable energysystems, distributed generation, computer simulations and digitalcontrol implementation. Marco Liserre is currently Assistant Professor at theBari Polytechnic, Italy, teaching courses in basic and advancedpower electronics, and industrial electronics. His researchinterests are in the control of power converters and drives, powerquality, and distributed generation, and he has authored 70 paperson these subjects, 13 of them having been published ininternational journals. He has worked towards several projectsfunded by the Italian government and has also lectured at AalborgUniversity, Delft University, and at the Warsaw University ofTechnology. He is Editor of the Newsletter of the IndustrialElectronic Society, and Associate Editor of the IEEE Transactionson Industrial Electronics. Pedro Rodriguez received his M.S. and Ph.D. degrees inelectrical engineering from the Technical University of Catalonia(UPC), Spain. He is currently an Associate Professor in theElectrical Engineering Department at the UPC, where he is the headof the Renewable Electrical Energy Systems (REES) center. He stayedas a researcher in the Department of Energy Technology (DET), atAalborg University (Denmark), what resulted in close researchcollaboration. Currently, he is a regular Visiting Professor at theDET, where he participates as a co-supervisor in the Vestas PowerProgramme. His research activity lies on the field of electronicpower processors applied to electrical distributed generationsystems, being mainly focused on designing of controllers forthe grid interactive power processors, designing powerelectronics based power processors for green energy sources, andproposing new technical solutions to improve stability and powerquality in electrical networks.
|
Ask a Question About this Product More... |
|
