US 2018/0026546 A1Published application

Power conversion device

AssigneePanasonic Intellectual Property Management Co., Ltd.

InventorsATSUSHI IISAKA, TETSUYA ISHIGURO

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Abstract

A power conversion device includes an input current sensor, an input voltage sensor, a power converter, an output voltage sensor for detecting an output voltage from the power converter, an output current sensor for detecting an output current value from the power converter, and a controller for controlling the power converter. The controller obtains an allowable current value that can be accepted from an external alternating current power source, and, controls the power converter so that the input current value does not exceed the allowable current value based on an input current value detected by the input current sensor. The controller detects an abnormality in the power conversion device based on the input current value, the input voltage, the output current value, the output voltage, and power conversion efficiency of the power converter.

Claims10

Dependent claims

A power conversion device for converting alternating current power into direct current power to supply the direct current power to a load, the power conversion device comprising:

an input current sensor that detects an input current value of the alternating current power;
an input voltage sensor that detects an input voltage value of the alternating current power;
a power converter that converts the input alternating current power into the direct current power;
an output current sensor that detects an output current value from the power converter;
an output voltage sensor that detects an output voltage value from the power converter;
and
a controller that obtains an allowable current value of the alternating current power that can be accepted, and controls the power converter so that the input current value does not exceed the allowable current value, based on the input current value detected by the input current sensor,
wherein the controller detects an abnormality in the power conversion device based on the input current value, the input voltage value, the output current value, the output voltage value, and power conversion efficiency of the power converter.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/549,115Filed 17 Feb 2016
Priority: JP 2015-03168220 Feb 2015
Published: 25 Jan 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H02M 7/12
By static converters: using discharge tubes with control electrode or semiconductor devices with control electrode
H02J 7/06
Regulation of charging current or voltage: using discharge tubes or semiconductor devices
H02J 7/933
Regulation of charging or discharging current or voltage: the cycle being controlled or terminated in response to electric parameters
H02M 1/32
Details of apparatus for conversion: means for protecting converters other than automatic disconnection

Family

US 10,630,194 B2Related patent
US 2018/0026546 A1This patent

From the US filing history. Foreign family members aren’t listed.

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