Power Conversion Device And Vehicle Auxiliary Power Supply Device

Abstract: A power conversion device (1) comprises a three-phase inverter (10) and a control device (12) for controlling the operation of the three-phase inverter (10). The three-phase inverter (10) converts input power to three-phase AC power and supplies the converted three-phase AC power to a load (4) via an AC output filter (2) equipped with an ACL (21) and ACC (22). The control device (12) estimates the capacitance of each phase of the ACC (22) on the basis of the information of three-phase voltages that are the voltages at the respective connection points (8a, 8b, 8c) between the ACL (21) and the ACC (22) and the information of three-phase first currents flowing between the three-phase inverter (10) and the respective connection points (8a, 8b, 8c).

Patent Information

Application #

Filing Date

05 December 2024

Publication Number

50/2024

Publication Type

INA

Invention Field

ELECTRICAL

Status

Email

Parent Application

Applicants

MITSUBISHI ELECTRIC CORPORATION

7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008310

Inventors

1. FUKUDA, Yoichi

c/o Mitsubishi Electric Corporation, 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008310

2. MATSUMOTO, Shinichi

c/o Mitsubishi Electric Corporation, 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008310

3. ARAI, Osamu

c/o Tokyo Metro Co., Ltd., 3-19-6, Higashi-ueno, Taito-ku, Tokyo 1108614

4. KARASAWA, Kouhei

c/o Tokyo Metro Co., Ltd., 3-19-6, Higashi-ueno, Taito-ku, Tokyo 1108614

5. TOMOMATSU, Akihide

c/o Tokyo Metro Co., Ltd., 3-19-6, Higashi-ueno, Taito-ku, Tokyo 1108614

Specification

Documents

Application Documents

#	Name	Date
1	202447095921-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [05-12-2024(online)].pdf	2024-12-05
2	202447095921-STATEMENT OF UNDERTAKING (FORM 3) [05-12-2024(online)].pdf	2024-12-05
3	202447095921-REQUEST FOR EXAMINATION (FORM-18) [05-12-2024(online)].pdf	2024-12-05
4	202447095921-PROOF OF RIGHT [05-12-2024(online)].pdf	2024-12-05
5	202447095921-POWER OF AUTHORITY [05-12-2024(online)].pdf	2024-12-05
6	202447095921-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [05-12-2024(online)].pdf	2024-12-05
7	202447095921-FORM 18 [05-12-2024(online)].pdf	2024-12-05
8	202447095921-FORM 1 [05-12-2024(online)].pdf	2024-12-05
9	202447095921-DRAWINGS [05-12-2024(online)].pdf	2024-12-05
10	202447095921-DECLARATION OF INVENTORSHIP (FORM 5) [05-12-2024(online)].pdf	2024-12-05
11	202447095921-COMPLETE SPECIFICATION [05-12-2024(online)].pdf	2024-12-05
12	202447095921-MARKED COPIES OF AMENDEMENTS [26-12-2024(online)].pdf	2024-12-26
13	202447095921-FORM 13 [26-12-2024(online)].pdf	2024-12-26
14	202447095921-AMMENDED DOCUMENTS [26-12-2024(online)].pdf	2024-12-26
15	202447095921-FORM 3 [23-04-2025(online)].pdf	2025-04-23