JPS54105756A - Reactive power compensator for varying load - Google Patents

Reactive power compensator for varying load

Info

Publication number
JPS54105756A
JPS54105756A JP1279978A JP1279978A JPS54105756A JP S54105756 A JPS54105756 A JP S54105756A JP 1279978 A JP1279978 A JP 1279978A JP 1279978 A JP1279978 A JP 1279978A JP S54105756 A JPS54105756 A JP S54105756A
Authority
JP
Japan
Prior art keywords
reactive power
current
load
time
point
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
JP1279978A
Other languages
Japanese (ja)
Inventor
Yotaro Saki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1279978A priority Critical patent/JPS54105756A/en
Publication of JPS54105756A publication Critical patent/JPS54105756A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To make an operation of the reactive power compensation at high speed further in high precision, with a detection speed of response not worsened, by detecting a current slope near the point, where an instantaneous value of the load current crosses over zero point, and an integrated value of the load current, from near the before said point to near the point of the load voltage π/2.
CONSTITUTION: A differentiated value of the current at the time t = T, where the current becomes zero, is obtained from a formula I. Secondly, an integrated value of the current from the time t = T to t = 1/4f is obtained from a formula II. In the formula, where ω is proper known number, if assuming the load voltage approximately constant, a reactive power of the load may be obtained from a difference between the differentiated value of the current at the time t = T and the integrated value of the current from the time t = T to t = 1/4f. With a reactive power of varying load 13 detected by a reactive power detector 14, an on-off control of SCR11 to 11' is operated by a controller 15, to control a number of banks of condensers 12, 12' required for varying reactive power. In such way, a reactive power compensation can be operated at high speed further in high precision.
COPYRIGHT: (C)1979,JPO&Japio
JP1279978A 1978-02-07 1978-02-07 Reactive power compensator for varying load Pending JPS54105756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1279978A JPS54105756A (en) 1978-02-07 1978-02-07 Reactive power compensator for varying load

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1279978A JPS54105756A (en) 1978-02-07 1978-02-07 Reactive power compensator for varying load

Publications (1)

Publication Number Publication Date
JPS54105756A true JPS54105756A (en) 1979-08-20

Family

ID=11815430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1279978A Pending JPS54105756A (en) 1978-02-07 1978-02-07 Reactive power compensator for varying load

Country Status (1)

Country Link
JP (1) JPS54105756A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106300383A (en) * 2016-09-09 2017-01-04 中国南方电网有限责任公司电网技术研究中心 The comprehensive reactive configuration method of 10kV distribution line of consideration equipment response speed

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106300383A (en) * 2016-09-09 2017-01-04 中国南方电网有限责任公司电网技术研究中心 The comprehensive reactive configuration method of 10kV distribution line of consideration equipment response speed

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