Light load efficiency improvement in variable DC-link voltage inverter systems for home appliances

Hyun Soo Park; Minkook Kim; Byoung Kuk Lee

doi:10.5370/JEET.2016.11.5.1274

Light load efficiency improvement in variable DC-link voltage inverter systems for home appliances

Hyun Soo Park, Minkook Kim, Byoung Kuk Lee

Department of Electronic and Electrical Engineering

Sungkyunkwan University

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

This paper describes an efficiency improvement scheme in variable dc-link voltage inverter systems for home appliances and especially focuses on the light load operating area. Although, variable dc-link voltage according to the load could improve the efficiency of inverter, it can cause complex operation and low efficiency of PFC circuit. Therefore, in this paper buck boost selective control scheme is proposed to increase the efficiency of PFC circuit under low dc-link voltage. The validity of the proposed scheme is verified by 2.2kW dynamo system and maximum 6.5% system efficiency improvement could be achieved.

Original language	English
Pages (from-to)	1274-1281
Number of pages	8
Journal	Journal of Electrical Engineering and Technology
Volume	11
Issue number	5
DOIs	https://doi.org/10.5370/JEET.2016.11.5.1274
State	Published - Sep 2016

Keywords

Buck boost selective control
Light load efficiency
Power factor correction
Variable dc-link

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.5370/JEET.2016.11.5.1274

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title = "Light load efficiency improvement in variable DC-link voltage inverter systems for home appliances",

abstract = "This paper describes an efficiency improvement scheme in variable dc-link voltage inverter systems for home appliances and especially focuses on the light load operating area. Although, variable dc-link voltage according to the load could improve the efficiency of inverter, it can cause complex operation and low efficiency of PFC circuit. Therefore, in this paper buck boost selective control scheme is proposed to increase the efficiency of PFC circuit under low dc-link voltage. The validity of the proposed scheme is verified by 2.2kW dynamo system and maximum 6.5\% system efficiency improvement could be achieved.",

keywords = "Buck boost selective control, Light load efficiency, Power factor correction, Variable dc-link",

author = "Park, \{Hyun Soo\} and Minkook Kim and Lee, \{Byoung Kuk\}",

note = "Publisher Copyright: {\textcopyright} The Korean Institute of Electrical Engineers.",

year = "2016",

month = sep,

doi = "10.5370/JEET.2016.11.5.1274",

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T1 - Light load efficiency improvement in variable DC-link voltage inverter systems for home appliances

AU - Park, Hyun Soo

AU - Kim, Minkook

AU - Lee, Byoung Kuk

N1 - Publisher Copyright: © The Korean Institute of Electrical Engineers.

PY - 2016/9

Y1 - 2016/9

N2 - This paper describes an efficiency improvement scheme in variable dc-link voltage inverter systems for home appliances and especially focuses on the light load operating area. Although, variable dc-link voltage according to the load could improve the efficiency of inverter, it can cause complex operation and low efficiency of PFC circuit. Therefore, in this paper buck boost selective control scheme is proposed to increase the efficiency of PFC circuit under low dc-link voltage. The validity of the proposed scheme is verified by 2.2kW dynamo system and maximum 6.5% system efficiency improvement could be achieved.

AB - This paper describes an efficiency improvement scheme in variable dc-link voltage inverter systems for home appliances and especially focuses on the light load operating area. Although, variable dc-link voltage according to the load could improve the efficiency of inverter, it can cause complex operation and low efficiency of PFC circuit. Therefore, in this paper buck boost selective control scheme is proposed to increase the efficiency of PFC circuit under low dc-link voltage. The validity of the proposed scheme is verified by 2.2kW dynamo system and maximum 6.5% system efficiency improvement could be achieved.

KW - Buck boost selective control

KW - Light load efficiency

KW - Power factor correction

KW - Variable dc-link

UR - https://www.scopus.com/pages/publications/84983336731

U2 - 10.5370/JEET.2016.11.5.1274

DO - 10.5370/JEET.2016.11.5.1274

M3 - Article

AN - SCOPUS:84983336731

SN - 1975-0102

VL - 11

SP - 1274

EP - 1281

JO - Journal of Electrical Engineering and Technology

JF - Journal of Electrical Engineering and Technology

IS - 5

ER -

Light load efficiency improvement in variable DC-link voltage inverter systems for home appliances

Abstract

Keywords

UN SDGs

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