Investigation of a Low Cost Grid Connected Inverter for Small Scale Wind Turbines Based on a Constant Current Source PM Generator
IECON 2006, Paris, France, 6 - 10 November 2006, pp.4297-4302, (Full Text)
- Publication Type: Conference Paper / Full Text
- Doi Number: 10.1109/iecon.2006.347938
- City: Paris
- Country: France
- Page Numbers: pp.4297-4302
- Bilecik Şeyh Edebali University Affiliated: No
Abstract
This paper describes a novel low-cost grid-connected inverter for small-scale wind turbines based on a high-inductance PM generator operating in a constant-current output mode. The PM generator is connected to a switched-mode rectifier (SMR) which consists of an uncontrolled rectifier and a switch. The combination of the high-inductance generator and uncontrolled rectifier produces a constant dc current. The switch is used to modulate this current and produces an output current whose fundamental component is a full-wave rectified sinewave and is in-phase with the grid voltage. A line-frequency commutated H-bridge inverter and LC output filter is used to produce a sinusoidal output grid current. The concept is verified using simulations and experimental results.