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Patent Searching and Data


Title:
POWER CONDITIONER AND METHOD FOR CONTROLLING POWER CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2017/043197
Kind Code:
A1
Abstract:
In order for a power conditioner to start up appropriately, additional components external to the power conditioner, such as an AC load circuit and a circuit switching device, are required for startup determination. Furthermore, a discharge resistor must be provided separately for a DC unit. To solve these problems, this power conditioner is equipped with: a main circuit unit, which is equipped with an inverter unit that converts DC power from a solar cell to AC power; and a startup determination processing unit, which is equipped with a switching pulse generation unit that sends a switching command to the inverter unit of the main circuit unit, and a comparison unit that compares a predetermined minimum possible operating voltage value and the DC voltage value when power is consumed by the inverter unit on the basis of the switching command transmitted by the switching pulse generation unit.

Inventors:
MASUYAMA SHIORI (JP)
MATSUNAGA SHUNSUKE (JP)
KOSAKA TADAYOSHI (JP)
Application Number:
PCT/JP2016/071666
Publication Date:
March 16, 2017
Filing Date:
July 25, 2016
Export Citation:
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Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
G05F1/66; H02M7/48
Foreign References:
JP2014180182A2014-09-25
JP2009148014A2009-07-02
JP2013102631A2013-05-23
JP2015204746A2015-11-16
JP2015208131A2015-11-19
Other References:
See also references of EP 3349091A4
Attorney, Agent or Firm:
TODA YUJI (JP)
Yuji Toda (JP)
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