POWER FLUCTUATION MITIGATION SYSTEM

Title:

POWER FLUCTUATION MITIGATION SYSTEM

Document Type and Number:

WIPO Patent Application WO/2017/131010

Kind Code:

A1

Abstract:

Provided is a power fluctuation mitigation system which quickly suppresses power fluctuations in a power distribution system caused by sudden load changes and the like, and which reduces the maintenance and inspection burden, with the goal of being maintenance-free. In a power supply system that supplies power to a load by means of an inverter device 200 having a first converter 210 connected to an AC power supply 100 and having an inverter 240 connected to this converter 210 via a DC intermediate capacitor 230, provided is a power fluctuation mitigation device 300 having: a second converter 330 connected to the AC power supply 100; a capacitor (capacitive power storage element) 360 charged by the output therefrom; and a variable resistor 370 and a control switch 380 serving as a charging means for charging the capacitor 230 by means of the stored power. When the output from the inverter device 200 fluctuates in conjunction with a sudden change in load, power is supplied from the capacitor 360 to the capacitor 230 via the variable resistor 370 and the control switch 380.

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Inventors:

YUTANI KOUJI (JP)
YAMANO HIROYUKI (JP)
KIN REIRI (JP)
TSUKAMOTO TOSHIYUKI (JP)

Application Number:

PCT/JP2017/002474

Publication Date:

August 03, 2017

Filing Date:

January 25, 2017

Export Citation:

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Assignee:

FUJI ELECTRIC CO LTD (JP)
RIKEN (JP)

International Classes:

H02J3/32; H02M7/48

Foreign References:

JP2015109781A	2015-06-11
JP2009077604A	2009-04-09
JP2003224978A	2003-08-08

Other References: