Patent ID: 9350173
Filing Date: 2016-05-24
CPC Classification: B60L,H02J,Y02E,Y02T,Y04S

Claim Text:
1. An electric power control system, comprising: an electric power supply system supplying an alternating current (AC) power; a load; a power source switching unit connected with the electric power supply system and the load, the power source switching unit switching a power source supplied to the load; a charge-discharge switching unit connected with the electric power supply system via a charge line and connected with the power source switching unit via a discharge line; a converting unit connected with the charge-discharge switching unit via a charge-discharge line; an electric power storage device connected with the converting unit, wherein the converting unit converts the AC power supplied from the electric power supply system to a direct current (DC) power and charges the electric power storage device with the DC power when a charge condition is satisfied, and the converting unit discharges the electric power storage device by converting the DC power charged in the electric power storage device to an AC power when a discharge condition is satisfied; a discharge detection unit that detects a state of the AC power converted by the converting unit, the AC power converted by the converting unit being referred to as a first AC power; a power supply detection unit that detects a state of the AC power supplied from the electric power supply system, the AC power supplied from the electric power supply system being referred to as a second AC power; and a control unit that controls the discharge detection unit and the power supply detection unit, wherein the control unit includes: