H - Electricity – 02 – J
Patent
H - Electricity
02
J
348/17, 323/5
H02J 9/00 (2006.01) H02J 9/06 (2006.01)
Patent
CA 1228119
ABSTRACT OF THE DISCLOSURE A commercial AC source is connected to a load through the main line (1) via an AC switch (1a) only when the AC source is normal, and an inverter power source (10) is connected to the load through the auxiliary line (2) whether the AC source is normal or abnormal. In the case when the AC source changes from abnormal to normal, since the AC source is connected to the main line (1) after inverter phase has matched AC source phase, substantially no effective power is transmitted from the main line to the auxiliary line or vice versa, while a required power is being supplied from the AC source to the load (not from the inverter). Further, since an inverter inductor (Li) and a main line inductor (L?) are connected in the main and auxiliary lines, respectively, even if the AC source voltage fluctuates, it is possible to regulate the load voltage at a constant level by virtue of an inverter current flowing from the AC source to the inverter source or vice versa. Furthermore, it is also possible to charge an inverter battery by reducing inverter frequency a little lower than that of AC source. - 59 -
460424
Kabushiki Kaisha Meidensha
Robic Robic & Associes/associates
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