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1. (WO2017154308) POWER CONVERSION CONTROL DEVICE, POWER CONVERSION SYSTEM, AND PROGRAM

Pub. No.:    WO/2017/154308    International Application No.:    PCT/JP2016/087841
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Tue Dec 20 00:59:59 CET 2016
IPC: H02M 1/00
H02M 1/088
H02M 7/48
Applicants: HITACHI, LTD.
株式会社日立製作所
Inventors: YONEKAWA Akira
米川 輝
NORIMATSU Yasuaki
乗松 泰明
KADOTA Mitsuhiro
門田 充弘
Title: POWER CONVERSION CONTROL DEVICE, POWER CONVERSION SYSTEM, AND PROGRAM
Abstract:
In order to make it possible to easily check or diagnose power conversion devices connected in series, a power conversion control device is provided with: a diagnosis target selection unit (12) that selects, as a power conversion device (30-m) to be diagnosed, one power conversion device (30) from among a plurality of power conversion devices (30-1, 30-2, …, 30-N) connected in series; a diagnosis unit (16) that diagnoses the power conversion device (30-m) to be diagnosed; and an output setting unit (14) that varies the output voltage (Pm/I) of the power conversion device (30-m) to be diagnosed in association with the diagnosis and varies the output voltage of another power conversion device (30) other than the power conversion device (30-m) to be diagnosed so as to compensate the variation of the output voltage (Pm/I) of the power conversion device (30-m) to be diagnosed.