Title:
POWER SUPPLY APPARATUS FOR LIGHT RAIL, USING A UTILITY INTERACTIVE PHOTOVOLTAIC GENERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2011/090325
Kind Code:
A2
Abstract:
The present invention relates to a power supply apparatus for light rail, using a utility interactive photovoltaic generation system, and more particularly, to a power supply apparatus for light rail, comprising: a power-converting apparatus which rectifies alternating current (AC) power, obtained by passing the voltage generated from a power-generating station through a substation, a circuit breaker, and a transformer, into direct current (DC) power; a converter which converts the voltage of the power from solar cells to be the same as the voltage of the power rectified by the power-converting apparatus; and a control board which controls the power-converting apparatus such that the control board compares the power supplied through the converter and the power required for operating a light rail system to check for electric power to be supplemented, and controls the duty ratio or firing angle of the power-converting apparatus so as to supplement the electric power.
Inventors:
KIM, Yang Soo (699-5 Wa-dong Danwon-gu, Ansan-si, Gyeonggi-do 425-841, 425-841, KR)
Application Number:
KR2011/000406
Publication Date:
July 28, 2011
Filing Date:
January 20, 2011
Export Citation:
Assignee:
DONGSAN ENGINEERING CO.,LTD (8F S-18, Garden-Five Tool292 Munjeong 2-dong, Songpa-gu, iSeoul 138-200, 138-200, KR)
동산엔지니어링(주) (서울시 송파구 문정 2동 292 가든파이브 TOOL관 8층 S-18호, 138-200 Seoul, 138-200, KR)
동산엔지니어링(주) (서울시 송파구 문정 2동 292 가든파이브 TOOL관 8층 S-18호, 138-200 Seoul, 138-200, KR)
International Classes:
B60L9/18
Attorney, Agent or Firm:
PATENT LAW FIRM GRAND KOREA (2F Bubong Bldg, 735-36 Yeoksam-dong Gangnam-gu, Seoul 135-080, 135-080, KR)
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Claims: