Title:
CURRENT MEASUREMENT METHOD FOR THREE-PHASE PULSE WIDTH MODULATION INVERTER USING REAL-TIME SWITCH JUNCTION TEMPERATURE ESTIMATION TECHNIQUE AND THREE-PHASE PULSE WIDTH MODULATION INVERTER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/107412
Kind Code:
A1
Abstract:
Disclosed are a current measurement method for a three-phase pulse width modulation inverter using a real-time switch junction temperature estimation technique, and a three-phase pulse width modulation inverter system. The current measurement method may comprise the steps of: calculating a power loss of a switch of an inverter; estimating the junction temperature (T j) of the switch by using a thermal equivalent circuit; estimating a resistance (R ds on) value between both ends of a drain and a source by using a resistance (R ds on) map based on the junction temperature (T j); and using, as a control signal of the inverter, a current value calculated based on the estimated resistance (R ds on) value.
Inventors:
LEE GEUN HO (KR)
HWANG JAE YEOB (KR)
LIM HEE SUN (KR)
KANG DONG GIL (KR)
KIM DONG OK (KR)
HWANG JAE YEOB (KR)
LIM HEE SUN (KR)
KANG DONG GIL (KR)
KIM DONG OK (KR)
Application Number:
PCT/KR2020/014614
Publication Date:
June 03, 2021
Filing Date:
October 23, 2020
Export Citation:
Assignee:
UNIV KOOKMIN IND ACAD COOP FOUND (KR)
International Classes:
H02M7/5395; G01K7/22; G01R19/165; G01R31/40
Foreign References:
| KR101686861B1 | 2016-12-20 | |||
| JPH08336276A | 1996-12-17 | |||
| US8134327B2 | 2012-03-13 | |||
| JP2003047284A | 2003-02-14 |
Other References:
TOM RIBARICH: "Enhancing switch-mode power performance with RDS(on) current sensing", POWER SYSTEMS DESIGN: EMPOWERING GLOBAL INNOVATION, 4 January 2014 (2014-01-04), pages 1 - 4, XP009528350
Attorney, Agent or Firm:
YOUNGBEE INTELLECTUAL PROPERTY (KR)
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