TW200627769A - Automatic power factor regulator (APFR) - Google Patents

Automatic power factor regulator (APFR)

Info

Publication number
TW200627769A
TW200627769A TW094102266A TW94102266A TW200627769A TW 200627769 A TW200627769 A TW 200627769A TW 094102266 A TW094102266 A TW 094102266A TW 94102266 A TW94102266 A TW 94102266A TW 200627769 A TW200627769 A TW 200627769A
Authority
TW
Taiwan
Prior art keywords
capacitor
apfr
switch
power
modular
Prior art date
Application number
TW094102266A
Other languages
Chinese (zh)
Inventor
Chin-Chang Wu
Original Assignee
Kun Shan University Of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kun Shan University Of Technology filed Critical Kun Shan University Of Technology
Priority to TW094102266A priority Critical patent/TW200627769A/en
Publication of TW200627769A publication Critical patent/TW200627769A/en

Links

Landscapes

  • Control Of Electrical Variables (AREA)
  • Rectifiers (AREA)
  • Power Conversion In General (AREA)

Abstract

This invention is a control method and switch modular for an automatic power factor regulator (APFR). The control method is implemented by a digital signal processor (DSP) which can calculate the harmonic components of voltage and current to detect the harmonic resonance. For protecting the power capacitor from harmonic resonance, it will change the segment number of switching in capacitor to deviate the resonance frequency when the harmonic resonance is detected. All of the capacitor in the APFR will be turned away from the distribution power system when the over load of power capacitor still exist after changing the segment number of switching in capacitor. This invention also develops a switch modular for avoiding the inrush current when the switch modular turns on the capacitor and the arcing across the electromagnetic switch when the switch modular turns off the capacitor. Hence, this invention can extend the life of power capacitor and switch module, besides, this invention can enhance the reliability of APFR.
TW094102266A 2005-01-26 2005-01-26 Automatic power factor regulator (APFR) TW200627769A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW094102266A TW200627769A (en) 2005-01-26 2005-01-26 Automatic power factor regulator (APFR)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW094102266A TW200627769A (en) 2005-01-26 2005-01-26 Automatic power factor regulator (APFR)

Publications (1)

Publication Number Publication Date
TW200627769A true TW200627769A (en) 2006-08-01

Family

ID=57808868

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094102266A TW200627769A (en) 2005-01-26 2005-01-26 Automatic power factor regulator (APFR)

Country Status (1)

Country Link
TW (1) TW200627769A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI636633B (en) * 2017-12-27 2018-09-21 東元電機股份有限公司 Power quality control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI636633B (en) * 2017-12-27 2018-09-21 東元電機股份有限公司 Power quality control system

Similar Documents

Publication Publication Date Title
EP1598925A3 (en) Apparatus for controlling power factor compensation in inverter control circuit and method thereof
WO2007032944A3 (en) Arc fault circuit interrupter system
DK1855366T3 (en) Device and method for compensating a fault current in the event of a ground fault
TW200620792A (en) Power factor correction circuit
MX2018012626A (en) Switch actuation measurement circuit for voltage converter.
ATE463829T1 (en) LOAD DISCONNECTOR ARRANGEMENT
TW200721652A (en) A switching regulator, and a circuit and method for controlling the switching regulator
TW200703839A (en) Inrush current control circuit
TW200625772A (en) Switching power supply control circuit, switching power supply device and electronic apparatus employing the same
WO2004028206A3 (en) Adaptive cfl control circuit
TW200633353A (en) Control circuit and control method of current mode control type DC-DC converter
WO2008149530A1 (en) Electric power source control device and heat pump device using the electric power source control device
WO2011009717A3 (en) Method and circuit for power factor correction
WO2011052924A3 (en) Standby power reduction device
US7944089B2 (en) Uninterruptible power supply module
WO2007121944A3 (en) Boost power factor correction circuit (boost pfc)
WO2008087275A3 (en) Electrically insulated current measuring device, electronic trigger, and circuit breaker comprising such a device
ATE310330T1 (en) DEVICE FOR REDUCING ENERGY CONSUMPTION IN THE OPERATIONAL STATE IN DALI
US8237419B2 (en) Microcontroller operated current limited switching power supply for circuit protective devices
WO2011139441A3 (en) Open circuit detector and method therefore
ATE552604T1 (en) REVERABLE DC DISCONNECTOR
TW200732676A (en) Input voltage sensing circuit
TW200627769A (en) Automatic power factor regulator (APFR)
WO2005047759A3 (en) Device and method for switching off an inductive consumer without error
WO2006085262A3 (en) A method and a circuit arrangement for operating a high intensity discharge lamp