IP Library › Granted Patent US 12,362,659
Granted Patent B2
US 12,362,659 · App. 17/760,330 · Granted Jul 15, 2025

Power conversion device

Inventor: Mohammad Bani Shamseh (Tokyo, JP)
Assignee: TMEIC CORPORATION
H02M1/36H02M7/53
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Quick Facts
Patent No.
US 12,362,659
App. No.
17/760,330
Granted
Jul 15, 2025
Kind
B2
Abstract

A power conversion device according to one embodiment has an inverter that converts direct-current power supplied from a direct-current power source to alternating-current power, a determination unit that determines whether or not a negative-phase sequence voltage on an alternating-current side of the inverter is a predetermined value or greater, and a stop control unit that performs control to stop the inverter in a case where the determination unit determines that the negative-phase sequence voltage is the predetermined value or greater. Further, the stop control unit may perform control to stop the inverter in a case where a positive-phase sequence voltage on the alternating-current side of the inverter is within a predetermined range.

Claims (4)

1. A power conversion device comprising:

an inverter that converts direct-current power supplied from a direct-current power source to alternating-current power;

a determination unit that determines whether or not a negative-phase sequence voltage on an alternating-current side of the inverter is a predetermined value or greater; and

a stop control unit that performs control to stop the inverter by raising the negative-phase sequence voltage by injecting a negative-phase sequence current in a case where the determination unit determines that the negative-phase sequence voltage is the predetermined value or greater and a positive-phase sequence voltage on the alternating-current side of the inverter is within a normal range.

Assignments (2)
CHANGE OF NAME Recorded Apr 26, 2024
From: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
To: TMEIC CORPORATION
Reel/Frame 067244/0359 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 8, 2022
From: BANI SHAMSEH, MOHAMMAD
To: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
Reel/Frame 060743/0786 →
Continuity (1)
Related Publication 20230071413A1 · Mar 9, 2023
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