JPH0354016U - - Google Patents

Info

Publication number
JPH0354016U
JPH0354016U JP11504289U JP11504289U JPH0354016U JP H0354016 U JPH0354016 U JP H0354016U JP 11504289 U JP11504289 U JP 11504289U JP 11504289 U JP11504289 U JP 11504289U JP H0354016 U JPH0354016 U JP H0354016U
Authority
JP
Japan
Prior art keywords
reactive power
receiving point
signal
difference
calculation means
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
JP11504289U
Other languages
English (en)
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 filed Critical
Priority to JP11504289U priority Critical patent/JPH0354016U/ja
Publication of JPH0354016U publication Critical patent/JPH0354016U/ja
Pending legal-status Critical Current

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  • Control Of Electrical Variables (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例を示す構成ブロツク
図、第２図は第１、第２の積算演算手段が行う動
作を示すフローチヤート、第３図は負荷が変動し
無効電力率が変化したときの動作を示すタイムチ
ヤート、第４図は工場の電力系統が多数のバンク
（ＢＡＮＫ）に分かれている場合の適用例を示す
構成概念図である。 １，２……第１、第２の積算手段、３……無効
電力率演算手段、４……差演算手段、５……スイ
ツチ手段、６……加算手段、７……乗算演算手段
、８……自動／手動切換え手段、ＣＣ……進相コ
ンデンサ台数制御回路。

Claims (1)

  1. 【実用新案登録請求の範囲】 受電点電力信号、受電点無効電力信号を入力し
    これらを積算する積算手段と、 この積算手段で得られた受電点電力積算値と受
    電点無効電力積算値とを用いて無効電力率を演算
    する無効電力率演算手段と、 無効電力率の設定値（ＷＳ１）と無効電力率演
    算手段で得られた無効電力率（ＷＳ２）との差（
    △ＷＳ＝Ｗ２−ＷＳ２）を演算する差演算手段と
    、 無効電力率の設定値（ＷＳ１）に差演算手段で
    得られた差信号（△ＷＳ）を加算する加算手段と
    、 加算手段の出力信号（Ｗｉ）に受電点電力信号
    を乗算演算する乗算演算手段と、 を備え、 乗算演算手段の出力信号を無効電力設定値とし
    て、実際の受電点無効電力を進相コンデンサの接
    続をオン／オフすることにより制御することを特
    徴とする無効電力量制御装置。
JP11504289U 1989-09-29 1989-09-29 Pending JPH0354016U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11504289U JPH0354016U (ja) 1989-09-29 1989-09-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11504289U JPH0354016U (ja) 1989-09-29 1989-09-29

Publications (1)

Publication Number Publication Date
JPH0354016U true JPH0354016U (ja) 1991-05-24

Family

ID=31663388

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11504289U Pending JPH0354016U (ja) 1989-09-29 1989-09-29

Country Status (1)

Country Link
JP (1) JPH0354016U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101509248B1 (ko) * 2008-09-09 2015-04-14 엘지전자 주식회사 영상표시기기에서 주파수 보정 장치 및 방법

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5523701A (en) * 1978-06-21 1980-02-20 Hitachi Ltd Transportation system filter control system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5523701A (en) * 1978-06-21 1980-02-20 Hitachi Ltd Transportation system filter control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101509248B1 (ko) * 2008-09-09 2015-04-14 엘지전자 주식회사 영상표시기기에서 주파수 보정 장치 및 방법

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