| 摘要 |
<P>PROBLEM TO BE SOLVED: To facilitate countermeasures to load fluctuation, and to surely prevent backward tidal currents. <P>SOLUTION: Disclosed is an output control method of a photovoltaic power generation system in which a solar battery 20 is interconnected to a power system 30 by a power conditioner 10, therein the power conditioner 10 generates a DC voltage control command value under the maximum power follow-up control based on the output voltage and output currents of the solar battery 20, and converts the DC voltage control command value into a current control command value under PI control, and supplies the output power of an invertor 11 to a load by making the invertor perform a switching operation under PWM control based on the current control command value. In this case, a limiter upper limit value is set to the current control command value under the PI control, and the limiter upper limit value is varied under limiter control in accordance with load fluctuation from the outside. <P>COPYRIGHT: (C)2012,JPO&INPIT |
