Title:
POWER DEMAND AND SUPPLY SYSTEM
Document Type and Number:
Japanese Patent JP2015233385
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power demand and supply system capable of keeping voltage of power on an AC bus to which a power generation device is connected, within a predetermined range.SOLUTION: A power demand and supply system comprises a control device C that: makes an autonomous inverter device 5 execute voltage reduction processing of changing target voltage to the decreasing side, when a rate of increase in a power storage amount of a power storage device 4 is larger than the upper limit rate of increase or an effective power measurement value with which the autonomous inverter device 5 performs charging from the second self connection line 2b side to the first self connection line 2a side is larger than a predetermined charging side threshold; and makes the autonomous inverter device 5 execute voltage rise processing of changing the target voltage to the increasing side, when a rate of decrease in the power storage amount of the power storage device 4 is larger than the upper limit rate of decrease or an effective power measurement value with which the autonomous inverter device 5 performs discharging from the first self connection line 2a side to the second self connection line 2b side is larger than a predetermined discharging side threshold.
Inventors:
NAKAO KUNIHIRO
YAGIRI KOJI
HIRAI TOMOYUKI
YAGIRI KOJI
HIRAI TOMOYUKI
Application Number:
JP2014119762A
Publication Date:
December 24, 2015
Filing Date:
June 10, 2014
Export Citation:
Assignee:
OSAKA GAS CO LTD
International Classes:
H02J3/38
Domestic Patent References:
| JP2007185008A | 2007-07-19 | |||
| JP2015201992A | 2015-11-12 | |||
| JP2015233384A | 2015-12-24 | |||
| JP2012019667A | 2012-01-26 | |||
| JP2012039774A | 2012-02-23 | |||
| JP2012130146A | 2012-07-05 | |||
| JP2013146171A | 2013-07-25 | |||
| JP2013165593A | 2013-08-22 | |||
| JP2013176234A | 2013-09-05 | |||
| JP2015171294A | 2015-09-28 | |||
| JP2015173517A | 2015-10-01 |
Foreign References:
| WO2013140604A1 | 2013-09-26 | |||
| WO2013175612A1 | 2013-11-28 | |||
| WO2013026532A1 | 2013-02-28 | |||
| WO2015102598A1 | 2015-07-09 |
Attorney, Agent or Firm:
Patent business corporation r&c