Title:
電力変換装置、電力供給システム及び電力供給方法
Document Type and Number:
Japanese Patent JP5665895
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a power conversion device capable of preventing fire disaster caused by an abnormal state of a distribution line such as a tracking phenomenon with saved space.SOLUTION: A first power conversion unit 121 converts DC power to AC power and outputs the AC power to an indoor distribution line 101 when DC power is input from a photovoltaic power generation unit 104. A current measurement unit 123 measures current in a main distribution line 114, which is part of the indoor distribution line 101 for supplying AC power to a load apparatus 113 and supplies AC power output from the first power conversion unit 121 combined with AC power from a commercial power supply 107. An abnormality detection unit 124 detects an abnormal state of the indoor distribution line 101 by analyzing the current measured by the current measurement unit 123. An interception control unit 125 makes a trunk breaker 102 for switching supply and interception of the AC power through the main distribution line 114 effects interception when the abnormality detection unit 124 detects an abnormal state.
Inventors:
樋熊 利康
Application Number:
JP2013013135A
Publication Date:
February 04, 2015
Filing Date:
January 28, 2013
Export Citation:
Assignee:
三菱電機株式会社
International Classes:
H02H3/50; G01R31/02; H02M7/48
Attorney, Agent or Firm:
Mitsuru Kimura
Koji Yashima
Mie Hideki
Naoki Yamaguchi
Koji Yashima
Mie Hideki
Naoki Yamaguchi