Vector Control of Three-Phase AC Machines

This book addresses the vector control of three-phase AC machines, in particular induction motors with squirrel-cage rotors (IM), permanent magnet synchronous motors (PMSM) and doubly-fed induction machines (DFIM), from a practical design and development perspective. The main focus is on the application of IM and PMSM in electrical drive systems, where field-orientated control has been successfully established in practice. It also discusses the use of grid-voltage oriented control of DFIMs in wind power plants. This second, enlarged edition includes new insights into flatness-based nonlinear control of IM, PMSM and DFIM. The book is useful for practitioners as well as development engineers and designers in the area of electrical drives and wind-power technology. It is a valuable resource for researchers and students.

Principles of vector orientation and vector orientated control structures for systems using three-phase AC machines. - Inverter control with space vector modulation. - Machine models as prerequisite to design the controllers and observers. - Problems of actual-value measurement and vector orientation. - Dynamic current feedback control for fast torque impression in drive systems. - Equivalent circuits and methods to determine the system parameters. - On-line adaptation of the rotor time constant for IM drives. - Optimal control of state variables and set points for IM drives. - Nonlinear control structures for three-phase AC drive systems. - Linear control structure for wind power plants with DFIM. - Nonlinear control structures for wind power plants with DFIM.