| 摘要 |
PURPOSE:To provide a hybrid system of engine and induction motor which can be operated in various manners by a constitution wherein an access to a switching table is gained based on a primary linkage flux vector and an instantaneous torque outputted from an operating circuit and the target values of primary linkage flux command and torque command. CONSTITUTION:An operating circuit 6 operates the primary linkage flux vector and instantaneous torque of a three-phase induction motor 2 based on instantaneous current and voltage detected through a current/voltage sensor 4. A switching pattern selecting circuit 7 gains an access to a switching table 8 based on a primary linkage flux vector and an instantaneous torque operated by the operating unit 6 and target values of the three-phase induction motor 2, i.e. a primary linkage flux command and a torque command, delivered from a system computor 9 such that the error from the target value will be confined within a predetermined range. A switching voltage pattern to be set at the inverter section 3 is then selected. |
