Energy storage system and synchronization method thereof
AssigneeLsis Co., Ltd.
InventorSeong Joon Lee
Life of this patent
Estimating the term…
Abstract
An energy storage system includes: a plurality of slave power controllers connected to respective battery modules; and a master power controller configured to transmit a first signal to the plurality of slave power controllers and transmit a second signal for controlling synchronizations of the plurality of slave power controllers to the plurality of salve power controllers according to a reception time at which each of the plurality of salve power controllers receives the first signal.
Claims11
An energy storage system comprising:
- a plurality of slave power controllers connected to respective battery modules;
- and
- a master power controller connected to the plurality of slave power controllers through a ring network,
- wherein the master power controller is configured to transmit a first signal to a first slave power controller of the plurality of slave power controllers,
- each of the plurality of slave power controllers configured to, sequentially, transmit the first signal to a following slave power controller, and
- a last slave power controller of the plurality of slave power controllers configured to transmit, to the master power controller, a reception time at which each of the plurality of slave power controllers receives the first signal,
- wherein the master power controller is further configured to transmit a second signal for controlling synchronizations of the plurality of slave power controllers according to the reception time,
- each of the plurality of slave power controllers further configured to, sequentially, transmit the received second signal to a following slave power controller,
- wherein the first signal is for confirming the reception time at which each of the plurality of slave power controllers receives the first signal, and
- wherein the second signal is for synchronizing and controlling the plurality of slave power controllers, generated using a difference in the reception time at which each of the plurality of slave power controllers receives the first signal.
A synchronizing method of an energy storage system including a plurality of slave power controllers connected to respective battery modules and a master power controller connected to the plurality of slave power controllers through a ring network, the method comprising:
- transmitting, by the master power controller, a first signal to the first slave power controller of the plurality of slave power controllers;
- sequentially transmitting, by each of the plurality of slave power controllers, the first signal to a following slave power controller;
- transmitting, by a last slave power controller of the plurality of slave power controllers, to the master power controller, a reception time at which each of the plurality of slave power controllers receives the first signal;
- transmitting, by the master power controller, a second signal for controlling synchronizations of the plurality of slave power controllers according to the reception time;
- and
- sequentially transmitting, by each of the plurality of slave power controllers, the received second signal to a following slave power controller,
- wherein the first signal is for confirming the reception time at which each of the plurality of slave power controllers receives the first signal, and
- wherein the second signal is for synchronizing and controlling the plurality of slave power controllers, generated using a difference in the reception time at which each of the plurality of slave power controllers receives the first signal.
Dependencies are inferred from the claim text.