Protective relaying system and method for gathering data using thereof

Patent metadata

Field	Value
Publication number	US-10101366-B2
Application number	US-201514733741-A
Country	US
Kind code	B2
Filing date	Jun 8, 2015
Priority date	Jun 9, 2014
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

A protective relaying system and a data collection method thereof capable of enhancing a data collection efficiency and effectiveness is provided. The protective relaying system may include a plurality of protective relaying modules respectively connected to a switch to control the operation of the switch; a server module coupled to one of the plurality of protective relaying modules, and connected to the plurality of protective relaying modules, respectively, to sequentially collect and store data of the plurality of protective relaying modules; and a remote monitoring unit connected to the server module to collectively receive and collect the stored data of the plurality of protective relaying modules from the server module.

First claim

What is claimed is:

1. A protective relaying system, comprising:
a plurality of switches respectively connected to a plurality of motors;
a plurality of protective relaying modules respectively connected to the plurality of switches, configured to control the operation of the plurality of switches, and configured to provide a voltage and current to the motors through the plurality of switches;
a server module configured to communicate with each of the plurality of protective relaying modules using a power received from one of the plurality of protective relaying modules, and to collect data on a status of the voltage, current and the plurality of motors from the plurality of protective relaying modules; and
a remote monitoring unit connected to the server module, and configured to receive the data from the server module.

2. The protective relaying system of claim 1 , wherein the server module comprises a first communication channel and a second communication channel, and
the server module is connected to the plurality of protective relaying modules, respectively, through the first communication channel, and connected to the remote monitoring unit through the second communication channel.

3. The protective relaying system of claim 2 , wherein the second communication channel is connected to the remote monitoring unit through one of a wired communication scheme and a wireless communication scheme to perform data communication with the remote monitoring unit in a half-duplex communication mode.

4. The protective relaying system of claim 1 , wherein the server module comprises a storage unit configured to store the data, and ID information of the plurality of protective relaying modules.

5. A data collection method of a protective relaying system, the method comprising:
storing, by a server module, ID information of a plurality of protective relaying modules;
collecting, by the server module, data on a status of a voltage, a current and a plurality of motors from the plurality of protective relaying modules based on the stored ID information; and
transmitting, by the server module, the data to a remote monitoring unit in response to a request of the remote monitoring unit,
wherein the plurality of protective relaying modules are respectively connected to a plurality of switches respectively connected to the plurality of motors, configured to control the operation of the plurality of switches, and configured to provide a voltage and current to the motors through the plurality of switches, and
wherein the server module is configured to communicate with the plurality of protective relaying modules and remote monitoring using a power received from one of the plurality of protective relaying modules.

6. The method of claim 5 , wherein the storing of the ID information of the plurality of protective relaying modules comprises:
transmitting, by the server module, a call signal to the plurality of protective relaying modules;
receiving, by the server module, response signals corresponding to the call signal from the plurality of protective relaying modules; and
extracting, by the server module, the ID information of the plurality of protective relaying modules from the received response signals.

7. The method of claim 5 , wherein the collecting of the data from the plurality of protective relaying modules comprises:
outputting, by the server module, a data request signal to the plurality of protective relaying modules based on the ID information; and
collecting, by the server module, the data transmitted from the plurality of protective relaying modules in response to the data request signal.

8. The method of claim 5 , wherein the server module stores the data to match the ID information.

9. The method of claim 5 , wherein the server module sequentially collects the data from the plurality of protective relaying modules and collectively transmits the data to the remote monitoring unit.

Assignees

• Lsis Co Ltd

Inventors

• Jeon Byung Joon

Classifications

• H02H7/261

  involving signal transmission between at least two stations (transmission of signals in general H02H1/0061) · CPC title

• G01R31/343

  in operation · CPC title

• H02H1/0061 Primary

  concerning transmission of signals (transmission of measured quantities or switching orders; sectionalised protection involving signal transmission between at least two stations H02H7/261; comparison of the voltage or current values at two spaced portions of a single system H02H3/28; transferring the output of a sensing member to another variable G01D5/00; electrical measuring arrangements using modulation of electromagnetic waves, e.g. light beams G01R15/24, G01R15/26) · CPC title

• H02H7/0822

  Integrated protection, motor control centres · CPC title

• G01R1/36 Primary

  Overload-protection arrangements or circuits for electric measuring instruments · CPC title