JPS5482057A - Reactive power controller - Google Patents

Reactive power controller

Info

Publication number
JPS5482057A
JPS5482057A JP15027277A JP15027277A JPS5482057A JP S5482057 A JPS5482057 A JP S5482057A JP 15027277 A JP15027277 A JP 15027277A JP 15027277 A JP15027277 A JP 15027277A JP S5482057 A JPS5482057 A JP S5482057A
Authority
JP
Japan
Prior art keywords
reactive power
output
section
signal
power detection
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP15027277A
Other languages
Japanese (ja)
Inventor
Yoshihiko Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP15027277A priority Critical patent/JPS5482057A/en
Publication of JPS5482057A publication Critical patent/JPS5482057A/en
Pending legal-status Critical Current

Links

Landscapes

  • Supply And Distribution Of Alternating Current (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

PURPOSE: To stably control lead phase and lag phase reactive power by using a simple control circuit consisting of only the one DC motor when a thyristor phase is controlled.
CONSTITUTION: The size of the output signal QF of the reactive power detection section 9 is proportional to that of reactive power. A reactive power reference signal generator 10 generates the reference signal Qr of which polarity is reverse with that of the output signal of the reactive power detection section 9. The adder section 11 adds the signals QF and Qr. The proportional arithmetic section 12 doubles the output of the added section 11. |The substracter 13 finds the remainder between the output εI of the proportional arithmetic section 12 and the signal QF. The switching section 14 selects whether the output of the reactive power detection section 9 is used or that of the subtracter 13 is used as the feedback signal QFO at lead phase control and lag phase control. At lead phase control, the output QF of the reactive power detection section 9 is used as the reactive power feedback signal QFO and at lag phase control, the output QF, of te subtracter 13 is used.
COPYRIGHT: (C)1979,JPO&Japio
JP15027277A 1977-12-13 1977-12-13 Reactive power controller Pending JPS5482057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15027277A JPS5482057A (en) 1977-12-13 1977-12-13 Reactive power controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15027277A JPS5482057A (en) 1977-12-13 1977-12-13 Reactive power controller

Publications (1)

Publication Number Publication Date
JPS5482057A true JPS5482057A (en) 1979-06-29

Family

ID=15493315

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15027277A Pending JPS5482057A (en) 1977-12-13 1977-12-13 Reactive power controller

Country Status (1)

Country Link
JP (1) JPS5482057A (en)

Similar Documents

Publication Publication Date Title
JPS5478421A (en) Controller for commutatorless motor
JPS54121921A (en) Induction motor controller
JPS54113815A (en) Controlling ac motor
JPS5482057A (en) Reactive power controller
JPS5658781A (en) Controlling method of inverter equipment
JPS5213618A (en) Switching regulator
JPS55111682A (en) Dc motor control circuit
JPS52124145A (en) Controller for dc transmission system
JPS5625393A (en) Controller for ac motor
JPS54134331A (en) Phase controller
JPS5663621A (en) Electric power control device
JPS55111685A (en) Motor speed controller
JPS5574390A (en) Control of dc motor
JPS5513613A (en) Speed controller for electric motor
JPS531821A (en) Dc-ac converter
JPS5395221A (en) Control circuit induction motor
JPS5456121A (en) Speed controller for dc motor
JPS5415117A (en) Speed control circuit for motors
JPS55120386A (en) Control system for dc commutatorless motor
JPS5561279A (en) Controller of power converter
JPS53131447A (en) Control of power invertor in use for power trfnsmission
JPS5295019A (en) Controller for dc motor
JPS5320251A (en) Speed control system for elevator for use at time of interruption of current supply
JPS5421510A (en) Controller for dc motor
JPS5482649A (en) Controller for reactive power