Characteristics of Induction Generator with Reactive-Power Control Inverter

• Main Authors: Hsin-Wei Chen, 陳信維
• Other Authors: Li Wang
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/50928541390044867785

碩士 === 國立成功大學 === 電機工程學系碩博士班 === 93 === 　　This thesis analyzes the characteristics of a three-phase induction generator with a reactive-power compensated inverter under both autonomous mode and grid-connected mode of operation using instantaneous reactive power theory. The parameters of studied system are obtained from a laboratory 1.1 kW induction machine driven by a DC motor to perform both dynamic and steady-state simulations. 　　In autonomous mode of operation, the capacitor bank is used as a bulk uncontrolled source of reactive current and the proposed inverter provides reactive current to regulate the stator-winding voltage of the studied induction generator under variable rotor speeds. In grid-connected mode of operation, two control strategies to achieve unity power factor at grid side are proposed for the studied induction generator under variable rotor speeds.