| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter power generation apparatus that can control a converter circuit by estimating an electrical angle of a synchronous motor without using expensive sensors. <P>SOLUTION: An output shaft of an engine 11 is connected to a rotary shaft of a synchronous motor 13, so that power of the engine 11 rotates the rotary shaft of the synchronous motor 13 to generate AC power. The AC power is then converted into DC power in a converter 14 and further converted into three-phase AC power in an inverter 15 before being supplied to a load. The converter 14 also estimates an electrical angle of the synchronous motor according to an ECU pulse output from an ECU 19 on the engine 11 in generating the DC power, and supplies a current to the synchronous motor 13 to control the synchronous motor 13. The electrical angle of the synchronous motor can thus be estimated in the absence of a sensor for detecting an angular position of the rotary shaft on the synchronous motor 13, so that the scale of the apparatus can be simplified for cost reduction. <P>COPYRIGHT: (C)2012,JPO&INPIT |
