| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a power supply device capable of performing synchronous input processing with a comparatively simple device constitution.SOLUTION: A power supply device 5 can perform an interconnected operation executed during electrical connection with an electric power system 1, and an autonomous operation executed during electrical non-connection with the electric power system 1. An autonomous operation condition recording unit 36 in the power supply device 5 sets an autonomous frequency Hs to a different value from a reference frequency Hs within an approximation range. Furthermore, the autonomous operation condition recording unit 36 pre-records four kinds of information including an amplitude variation period Tv of a voltage sufficiently shorter than a phase match period Th, and maximum amplitude Vt and minimum amplitude Vb within an amplitude variation range of autonomous output voltage. The amplitude variation range is set by a user on the basis of an operation reference range of the predefined power system voltage, and is recorded in the autonomous operation condition recording unit 36.</p> |
