Summary
Chapter 9: Synchronverter Based Loads without a Dedicated Synchronisation Unit
9.1 Controlling the DC‐bus Voltage
9.2 Controlling the Power
9.3 Simulation Results
9.4 Experimental Results
9.5 Summary
Chapter 10: Control of a DFIG Based Wind Turbine as a VSG (DFIG‐VSG)
10.1 Introduction
10.2 DFIG Based Wind Turbines
10.3 Differential Gears and Ancient Chinese South‐pointing Chariots
10.4 Analogy between a DFIG and Differential Gears
10.5 Control of a Grid‐side Converter
10.6 Control of the Rotor‐Side Converter
10.7 Regulation of System Frequency and Voltage
10.8 Simulation Results
10.9 Experimental Results
10.10 Summary
Chapter 11: Synchronverter Based Transformerless Photovoltaic Systems
11.1 Introduction
11.2 Leakage Currents and Grounding of Grid‐tied Converters
11.3 Operation of a Conventional Half‐bridge Inverter
11.4 A Transformerless PV Inverter
11.5 Real‐time Simulation Results
11.6 Summary
Chapter 12: Synchronverter Based STATCOM without an Dedicated Synchronization Unit
12.1 Introduction
12.2 Conventional Control of STATCOM
12.3 Synchronverter Based Control
12.4 Simulation Results
12.5 Summary
Chapter 13: Synchronverters with Bounded Frequency and Voltage
13.1 Introduction
13.2 Model of the Original Synchronverter
13.3 Achieving Bounded Frequency and Voltage
13.4 Real‐time Simulation Results
13.5 Summary
Chapter 14: Virtual Inertia, Virtual Damping, and Fault Ride‐through
14.1 Introduction
14.2 Inertia, the Inertia Time Constant, and the Inertia Constant
14.3 Limitation of the Inertia of a Synchronverter
14.4 Reconfiguration of the Inertia Time Constant
14.5 Reconfiguration of the Virtual Damping
14.6 Fault Ride‐through
14.7 Simulation Results
14.8 Experimental Results
14.9 Summary
12 Part III: 2G VSM: Robust Droop Controller Chapter 15: Synchronization Mechanism of Droop Control 15.1 Brief Review of Phase‐Locked Loops (PLLs) 15.2 Brief Review of Droop Control 15.3 Structural Resemblance between Droop Control and PLL 15.4 Operation of a Droop Controller as a Synchronization Unit 15.5 Experimental Results 15.6 Summary 16 Robust Droop Control 16.1 Control of Inverter Output Impedance 16.2 Inherent Limitations of Conventional Droop Control 16.3 Robust Droop Control of R‐inverters 16.4 Robust Droop Control of C‐inverters 16.5 Robust Droop Control of L‐inverters 16.6 Summary 17 Universal Droop Control 17.1 Introduction 17.2 Further Insights into Droop Control 17.3 Universal Droop Controller 17.4 Real‐time Simulation Results 17.5 Experimental Results 17.6 Summary 18 Self‐synchronized Universal Droop Controller 18.1 Description of the Controller 18.2 Operation of the Controller 18.3 Experimental Results 18.4
