| 摘要 |
PROBLEM TO BE SOLVED: To supply an emergency power source of AC or DC to an important load by effectively using DC power of each distributed power source to the utmost, without performing complex control at service interrupting of a system. SOLUTION: This distributed power supply installation is provided with inverters 18 for linkage operation which are installed in the respective distributed power sources 16a-16n, convert DC power of solar batteries 17 or the like to AC power of linkage operation and output it when the system is normal, and pass and output the DC powers when service interrupt is generated in the system; a battery charger 25 which can be used for AC and DC and is installed on a common current flowing path of output of the inverters 18 of the respective power sources 16a-16n; a common battery 31 for power storage to which a DC output of the charger 25 is supplied, and which is charged with AC power of linkage operation of the respective power sources 16a-16n when the system is normal, and charged with a DC power through the respective power sources 16a-16n when a service interrupt is generated in the system; and an inverter 32 for an emergency power source which supplies an emergency power source of AC or DC, based on DC output of the charger 25 and stored power of the battery 31 to an important load 33, when a service interrupt is generated in the system. |
