Title:
パワーコンディショナシステムおよびこれを備えた電力システム、並びに事故点標定方法
Document Type and Number:
Japanese Patent JP6747607
Kind Code:
B2
Abstract:
This power conditioner system comprises an inverter circuit connected to a power system by a power-transmission line, an ammeter that measures the current output from the inverter circuit, and a control device that is connected to the ammeter and controls the inverter circuit. Upon receiving a prescribed input signal determined in advance, the control device controls the inverter circuit so as to make the same output, to the power-transmission line, a first AC voltage signal having a first frequency and a first voltage value and a second AC voltage signal having a second frequency and a second voltage value. The control device acquires a first inverter circuit output current corresponding to the first AC voltage signal measured by the ammeter and a second inverter circuit output current corresponding to the second AC voltage signal measured by the ammeter. The control device calculates a DC resistance and inductance on the basis of a first impedance, second impedance, first complex number, and second complex number.
Inventors:
Hiromi Nagasaki
Yukihisa Iijima
Chieko Umeno
Yukihisa Iijima
Chieko Umeno
Application Number:
JP2019557717A
Publication Date:
August 26, 2020
Filing Date:
December 04, 2017
Export Citation:
Assignee:
Toshiba Mitsubishi Electric Industrial Systems Co., Ltd.
International Classes:
G01R31/08; H02H3/38
Domestic Patent References:
| JP399377U | ||||
| JP2017101931A | ||||
| JP2017161483A | ||||
| JP2003255012A | ||||
| JP53012368A | ||||
| JP2002162431A |
Other References:
片山 昇,パワーコンディショナを利用した太陽電池の故障予知・診断技術,OHM 第102巻 第2号,日本,株式会社オーム社,2015年 2月12日,第102巻,40~43
舟木 剛,分散電源用系統連系システムの実効値解析,システム/制御/情報,日本,システム制御情報学会 The Institute of Systems,Control and Information Engineers,2012年 7月15日,第56巻 第7号,8~14
舟木 剛,分散電源用系統連系システムの実効値解析,システム/制御/情報,日本,システム制御情報学会 The Institute of Systems,Control and Information Engineers,2012年 7月15日,第56巻 第7号,8~14
Attorney, Agent or Firm:
Mamoru Takada
Hideki Takahashi
Hideki Takahashi