Potential applications and evaluation of AC-AC converter for renewable-energy conversions

摘要

Proposed is a new system scheme for future variable-speed wind turbines and micro-turbines. The scheme employs a PWM AC-AC converter with new capability of operating at variable and high frequency inputs. Simulation and experimental work are conducted to evaluate the feasibility of the proposed converter for the challenging OEM applications. Comparative study differentiates the performance of the AC-AC converter and conventional rectifier-inverter configuration. The proposed system potentially improves the efficiency and power density of future variable-speed wind turbines and microturbines.