Power router and method for controlling same, computer-readable medium, and power network system

Patent metadata

Field	Value
Publication number	US-2016334822-A1
Application number	US-201415111665-A
Country	US
Kind code	A1
Filing date	Dec 5, 2014
Priority date	Jan 15, 2014
Publication date	Nov 17, 2016
Grant date	—

Abstract

The purpose of the present invention is to enable a power router to be more suitably managed or controlled when constructing a power network system in which power cells are asynchronously interconnected. A power router has a first master leg, a second master leg, a first stand-alone leg, and a second stand-alone leg. Based on the power transmitted and received by the first stand-alone leg and the second stand-alone leg, a control unit controls the power transmitted and received by the first master leg and the power transmitted and received by the second master leg.

First claim

1 . A power router comprising:
a plurality of master legs; one or more legs other than the master legs; and a control unit that controls power transmitted/received by each of the plurality of master legs based on power transmitted/received by the one or more legs other than the master legs.

2 . The power router according to claim 1 , wherein
the control unit controls the power transmitted/received by each of the plurality of master legs such that a sum of the power transmitted/received by the one or more legs other than the master legs coincides with a sum of the power transmitted/received by each of the plurality of master legs.

3 . The power router according to claim 2 , wherein
the control unit allows each of the plurality of master legs to perform power transmission when the power router receives power via the one or more legs other than the master legs, and allows each of the plurality of master legs to perform power reception when the power router transmits power via the one or more legs other than the master legs.

4 . The power router according to claim 1 , wherein
the control unit multiplies a rating of each of the plurality of master legs by a first coefficient, thereby deciding the power transmitted/received by each of the plurality of master legs.

5 . The power router according to claim 4 , wherein
the first coefficient has a value equal to or more than 0 and equal to or less than 1.

6 . The power router according to claim 4 or 5 , wherein the first coefficients multiplied into the rating of each of the plurality of master legs are equal values.

7 . The power router according to claim 6 , wherein
the control unit calculates the first coefficient by dividing a sum value of the power transmitted/received by each of the plurality of master legs by a sum value of the ratings of the plurality of master legs.

8 . The power router according to claim 4 , wherein the control unit multiplies the rating of each of the plurality of master legs by the first coefficient and a second coefficient, thereby deciding the power transmitted/received by each of the plurality of master legs.

9 . The power router according to claim 8 , wherein the control unit determines the second coefficient based on a priority of each of the plurality of master legs.

10 . The power router according to claim 9 , wherein the control unit increases the second coefficient as the priority is high with respect to each of the plurality of master legs.

11 . The power router according to claim 10 , wherein a value obtained by multiplying the first coefficient and the second coefficient of each of the plurality of master legs is a value equal to or more than 0 and equal to or less than 1.

12 . A power network system comprising:
a power router; and a management server that controls power transmission and reception of the power router, wherein the power router includes: a plurality of master legs; one or more legs other than the master legs; and a control unit that controls power transmitted/received by each of the plurality of master legs based on power transmitted/received by the one or more legs other than the master legs, in response to an instruction from the management server.

13 . A control method of a power router, comprising the steps of:
referring to power transmitted/received by one or more legs other than a master leg; and controlling power transmitted/received by each of a plurality of master legs based on the power transmitted/received by the one or more legs other than the master leg.

14 . A non-transitory computer readable medium storing a control program of a power router, which causes a computer to perform:
a process of referring to power transmitted/received by one or more legs other than a master leg; and a process of controlling power transmitted/received by each of a plurality of master legs based on the power transmitted/received by the one or more legs other than the master leg.

Assignees

• Nec Corp

Inventors

• Kobayashi Noriaki

Classifications

• G05F1/66 Primary

  Regulating electric power · CPC title

• Y04S40/124

  using wired telecommunication networks or data transmission busses · CPC title

• H02J13/1323

  using optical fibres · CPC title

• H02J13/1321

  using a wired telecommunication network or a data transmission bus · CPC title

• H02J3/382

  Electricity · mapped topic