US 10,093,196 B2 · Electric storage device, equipment, and control method

Abstract

An electric storage device includes a first electric capacitor, a second electric capacitor, a converter, and a processor. The converter converts electric power transmitted between an external power system external to the electric storage device and at least one of the first electric capacitor and second electric capacitor. The processor is configured to control the converter to operate in at least one of a first mode and a second mode, the first electric capacitor continuously discharging electric power to the external power system in the first mode, the second electric capacitor discharging electric power to the external power system and being charged by the external power system, intermittently, to stabilize frequencies in the external power system in the second mode.

Claims17

Dependent claims

An electric storage device comprising:

a first electric capacitor having first output weight density and first energy weight density;
a second electric capacitor having second output weight density larger than the first output weight density and second energy weight density smaller than the first energy weight density;
a converter to convert electric power transmitted between an external power system external to the electric storage device and at least one of the first electric capacitor and second electric capacitor;
and
a processor configured to control the converter to operate in at least one of a first mode and a second mode, the first electric capacitor continuously discharging electric power to the external power system in the first mode, the second electric capacitor discharging electric power to the external power system and being charged by the external power system, intermittently, to stabilize frequencies in the external power system in the second mode.

2 more elements

Dependencies are inferred from the claim text.

Electric storage device, equipment, and control method

Life of this patent

Electric storage device, equipment, and control method

Life of this patent

Abstract

Claims17