Theoretical and experimental evaluation of vector control for doubly-fed reluctance generators

摘要

The paper deals with flux and voltage vector oriented control of a brushless doubly-fed reluctance generator (BDFRG) for grid-connected wind turbines. The BDFRG features the low operation & maintenance costs afforded by using a smaller inverter and the high reliability of brushless structure at potentially competitive performance to its popular slip-ring cousin, the doubly-fed induction generator (DFIG). The simulation and experimental studies have evaluated the two parameter independent speed and reactive power control algorithms on a custom-built BDFRG under the maximum torque per inverter ampere (MTPIA) conditions for various loading profiles.