Method for estimating power outages and restoration during natural and man-made events

Patent metadata

Field	Value
Publication number	US-9230289-B2
Application number	US-201213443943-A
Country	US
Kind code	B2
Filing date	Apr 11, 2012
Priority date	Apr 13, 2011
Publication date	Jan 5, 2016
Grant date	Jan 5, 2016

Abstract

A method of modeling electric supply and demand with a data processor in combination with a recordable medium, and for estimating spatial distribution of electric power outages and affected populations. A geographic area is divided into cells to form a matrix. Within the matrix, supply cells are identified as containing electric substations and demand cells are identified as including electricity customers. Demand cells of the matrix are associated with the supply cells as a function of the capacity of each of the supply cells and the proximity and/or electricity demand of each of the demand cells. The method includes estimating a power outage by applying disaster event prediction information to the matrix, and estimating power restoration using the supply and demand cell information of the matrix and standardized and historical restoration information.

First claim

What is claimed is:

1. A non-transitory recordable medium including a series of preprogrammed instructions that, when executed by a computing machine, cause the computing machine to perform the steps of modeling an electric supply and demand matrix, the steps comprising:
a. creating an electric supply and demand matrix for a geographic area, the matrix including a plurality of cells each representing an electricity service area;
b. assigning each existing substation for the geographic area to one of the cells in which the each existing substation is geographically located to create supply cells;
c. determining an electric demand for each of the plurality of cells to create demand cells;
d. assigning each of the demand cells to one of the supply cells as a function of proximity of the demand cells and an electricity supply of each of the supply cells;
e. predicting an effect on an electricity service area using disaster event information with respect to the electric supply and demand matrix; and
f. creating at least one of a restoration time estimate or a restoration plan proposal using the predicted effect and the electric supply and demand matrix.

2. The recordable medium of claim 1 , further comprising instructions wherein step d) is repeated until each of the demand cells is assigned to one of the supply cells or until electricity supply capacity is exhausted.

3. The recordable medium of claim 1 , wherein each of the cells measures approximately 0.01 decimal degrees per side.

4. The recordable medium of claim 1 , wherein determining the electric demand for each of the plurality of cells comprises the computing machine constructing a per capita electric demand for each cell from peak commercial electricity demand sources and population data sources.

5. The recordable medium of claim 1 , wherein determining the electric demand for each of the plurality of cells comprises the computing machine calculating a total population for each cell and constructing an electricity demand per cell by multiplying a sum of all electricity supplied by area substations by a ratio of a total cell population to a total state population.

6. The recordable medium of claim 1 , wherein the geographic area comprises a state.

7. The recordable medium of claim 1 , the steps further comprising the computing machine estimating a power outage by applying the disaster event information to the electric supply and demand matrix.

8. The recordable medium of claim 7 , the steps further comprising the computing machine estimating a power restoration for a power outage by applying standardized repair crew information to power outage information generated using the electric supply and demand matrix.

Assignees

• Omitaomu Olufemi A
• Fernandez Steven J
• Us Dept Energy
• Ut Battelle Llc

Inventors

• Omitaomu Olufemi A
• Fernandez Steven J

Classifications

• H02J2103/30

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

• H02J13/333

  the equipment forming part of substations · CPC title

• H02J13/12

  Monitoring network conditions, e.g. electrical magnitudes or operational status · CPC title

• H02J3/0073

  by providing alternative feeding paths when the main path fails · CPC title

• Y04S10/16

  Electric power substations · CPC title