Title :
Design of Drives for Inverter-Assisted Induction Generators
Author :
Myers, M. ; Bodson, Marc ; Khan, Faraz
Author_Institution :
Boulder Wind Power, Boulder, CO, USA
Abstract :
This paper investigates the control of power generation using two-phase squirrel-cage induction machines, where the load is connected to one stator winding and the load voltage is controlled through the other winding. The concept can be applied to three-phase machines as well. A state-space model of the machine is used to identify suitable operating regions. Then, two types of control algorithms are proposed: The first type regulates the frequency and the magnitude of the generated voltage and is suitable for stand-alone operation. The second type also regulates the phase of the voltages, enabling grid synchronization. Experimental results are presented for each of the control algorithms. The closed-loop systems are found able to track the desired reference and to reject disturbances caused by significant changes in load and speed.
Keywords :
asynchronous generators; closed loop systems; frequency control; induction motor drives; invertors; load flow control; power generation control; power grids; squirrel cage motors; state-space methods; stators; voltage control; closed loop system; drive design; frequency regulation; grid synchronization; inverter-assisted induction generator; load voltage control; magnitude regulation; phase regulation; power generation control; squirrel cage induction machine; stand-alone operation; state-space model; stator winding; voltage regulation; Induction generators; Inverters; Rotors; Voltage control; Windings; Adaptive control; induction machines; motor drives; power generation; renewable energy;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2012.2226693
