AC/DC Power Conversion Interface for Squirrel-Cage Induction Generator

• Main Authors: Pan Jun-Hong, 潘俊宏
• Other Authors: 吳晉昌
• Format: Others
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/90406197979605325133

碩士 === 崑山科技大學 === 電機工程研究所 === 94 === The squirrel-cage induction generator has the advantages of rugged construction, simple and reliable operation, less expensive and little maintenance, and it is suitable for small capacity of wind power generation. In this thesis, an AC/DC power conversion interface is developed for the squirrel-cage induction generator used in the wind power generation. The developed power conversion interface is configured by a three-phase rectifier and a three-phase reactive excitation system. The three-phase rectifier is used to convert the AC energy with variable frequency generated form the induction generator to a DC energy, and the DC energy can be supplied to the DC load or converted by a DC/AC inverter to an AC energy with fixed frequency to supply to send to the utility. The functions of three-phase reactive excitation system are to supply the excitation current and filter out the harmonic current. A prototype is established to verify the performance of the proposed power conversion interface for squirrel-cage induction generator. Test results show that the performance of this power conversion interface is excellent.