Power metering system, method and system for monitoring power consumed by load

Patent metadata

Field	Value
Publication number	US-9794654-B2
Application number	US-201615215491-A
Country	US
Kind code	B2
Filing date	Jul 20, 2016
Priority date	Jul 28, 2015
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

Disclosed embodiments relate to a power metering system, a method and a system for monitoring power consumed by loads by using the power metering system. In some embodiments, the system for monitoring power consumed by loads includes an external power supply source, a renewable energy sources, a distribution board, one or more power metering systems, and a monitoring server.

First claim

What is claimed is:

1. A system for monitoring power consumed by loads, the system comprising:
an external power supply source;
a renewable energy source configured to generate power or store the power applied from the external power supply source, and discharge the generated or stored power;
a distribution board configured to distribute the power applied from the external power supply source or the renewable energy source into electronic devices;
one or more power metering systems configured to detect a plurality of power data from the external power supply source, the renewable energy source, or the distribution board, respectively; and
a monitoring server configured to collect power data detected in the respective one or more power metering systems, and monitor the operation mode of the renewable energy source, or the power consumed by loads on the basis of the collected power data,
wherein the monitoring server checks the collected power data; estimates power data that is not collected on a basis of the collected power data; and estimates an operation mode of the renewal energy source based on the collected power data and the estimated power data.

2. The system of claim 1 , wherein the renewable energy source is at least one of a photovoltaic power generation system or an EES (electric energy storage).

3. The system of claim 2 , wherein the system comprises a load connected to one end of the EES where the renewable energy source is the EES, and the EES applies power to the load.

4. The system of claim 3 , wherein a power metering system for detecting the power data applied from the external power supply source is connected to one end of the EES, and a power metering system is connected to the other end thereof to detect the power data consumed by the load.

5. The system of claim 4 , wherein the server obtains power consumption patterns from the power data detected from a power metering system connected to the distribution board and a power metering system connected to the other end of the EES by means of the NILM (Non-intrusive Load Monitoring) algorithm.

6. The system of claim 3 , wherein the operation mode of the EES is estimated on the basis of the power data of a power metering system configured in the other end of the distribution board and the EES.

7. The system of claim 6 , wherein the EES is estimated to be in AC PASS mode where the power data of the one or more power metering systems are equal to the power data applied from the external power supply source.

8. The system of claim 6 , wherein the EES is estimated to be in charge mode where the power data of the power metering system configured at the other end of the EES is 0.

9. The system of claim 6 , wherein the EES is estimated to be in discharge mode where the power data of the power metering system configured at one end of the EES is smaller than the power data of the power metering system configured at the other end thereof.

10. The system of claim 1 , wherein the renewable energy source comprises:
a first renewable energy source configured to store or pass the power applied from the external power supply source and apply the stored or passed power to a load connected to one end thereof; and
a second renewable energy source configured with a power generation system for generating power, and
wherein the first renewable energy source is an EES, and the second renewable energy source is a power generation system.

11. The system of claim 10 , wherein the power generated by the power generation system is applied to the EES.

12. The system of claim 10 , wherein a power metering system configured to detect the power data generated by the power generation system is connected to one end of the power generation system.

13. A power metering system for metering power, the system comprising:
an external power supply source;
a first renewable energy source configured to generate power;
a second renewable energy source configured to receive power from the external power supply source or the first renewable energy source and supply the power to a load connected to one end thereof;
a distribution board configured to receive power from the external power supply source or the first renewable energy source, and distribute the power to electronic devices;
a power metering system configured to detect power data of the external power supply source, the renewable energy sources or the distribution board;
a power metering system configured to detect the power data of the second renewable energy source; and
a control unit configured to each power metering system;
wherein the control unit checks the collected power data of the external power supply source, the renewable energy sources or the distribution board; estimates power data that is not collected on a basis of the collected power data; and estimates an operation mode of the renewal energy source based on the collected power data and the estimated power data.

14. The system of claim 13 , wherein one end and the other end of the second renewable energy source have a power metering system connected thereto, respectively.

15. The system of claim 13 , wherein the first renewable energy source is a power generation system; and
the second renewable energy source is an EES.

Assignees

• Lsis Co Ltd

Inventors

• Roh Hee-Tae
• Yu Young-Gyu

Classifications

• H02J3/381

  Dispersed generators · CPC title

• H02J2103/30

  Simulating, planning, modelling, reliability check or computer assisted design [CAD] of electric power networks · CPC title

• H02J2101/22

  Solar energy · CPC title

• H02J2101/20

  Dispersed power generation using renewable energy sources · CPC title

• H02J13/1331

  using wireless data transmission · CPC title