Power conversion apparatus

Patent metadata

Field	Value
Publication number	US-8988906-B2
Application number	US-201313973591-A
Country	US
Kind code	B2
Filing date	Aug 22, 2013
Priority date	Feb 23, 2011
Publication date	Mar 24, 2015
Grant date	Mar 24, 2015

Abstract

A power conversion apparatus includes an inverter circuit, a system voltage measurement unit measuring a system voltage, a voltage drop detector detecting a voltage drop of a power system, based on the system voltage, a direct current power measurement unit measuring a direct current power to be input into the inverter circuit, an alternating current command value calculator calculating an alternating current command value to control an alternating current output from the inverter circuit, based on the direct current power and the system voltage, and a current limiter that decrease a current limit value to limit the alternating current command value, when the voltage drop is detected.

First claim

What is claimed is:

1. A power conversion apparatus to be applied to a generation system that interconnects with an alternating current power system, the power conversion apparatus comprising:
an inverter circuit configured to convert a direct current power into an alternating current power;
a system voltage measurement unit configured to measure a system voltage of the alternating current power system;
a voltage drop detector configured to detect a voltage drop of the alterna…

Assignees

• Toshiba Mitsubishi Elec Inc

Inventors

• Figueroa Ruben Alexis Inzunza
• Ikawa Eiichi
• Sumiya Takeshi

Classifications

• H02J2101/28

  Electricity · mapped topic

• H02M5/4585

  Electricity · mapped topic

• H02M7/53871

  Electricity · mapped topic

• Y02E10/763

  Cross-Sectional Technologies · mapped topic

• H02M7/5395 Primary

  Electricity · mapped topic