JPS58133817U

JPS58133817U - Tap-punch engine control device

Info

Publication number: JPS58133817U
Application number: JP3100782U
Authority: JP
Inventors: 長沢　宏
Original assignee: 三菱電機株式会社
Priority date: 1982-03-03
Filing date: 1982-03-03
Publication date: 1983-09-09

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のタップチェンジャー制御装置の一例のフ
ローチャート図、第２図は本考案のタップチェンジャー
制御装置の一実施例のフローチャート図、第３図は第２
図に示す電圧テーブル２３の一例の構成図である。１・・・・・・交流母線、２・・・・・・変換用変圧器
、３・・・・・・交直変換器、６・・・・・・計器用変
圧器、７・・・・・・タップ位置信号、８・・・・・・
二次電圧演算回路、９・・・・・・二次側電圧値信号、
１０・・・・・・二次側電圧設定値、１１・・・・・・
加算回路（加算器）、２１・・・・・・絶対値検出回路
、２２・・・・・・符号検出回路、′２３・・・・・・
電圧テープ　　・ル、２４・・・・・・比較回路、２５
・・・・・・タップ値検出回路、２６・・・・・・タッ
プ制御回路、２７・・・・・・タイマー回路、２８・・
・・・・タップ切替え出力信号。FIG. 1 is a flowchart of an example of a conventional tap changer control device, FIG. 2 is a flowchart of an embodiment of the tap changer control device of the present invention, and FIG. 3 is a flowchart of an example of a conventional tap changer control device.
FIG. 2 is a configuration diagram of an example of a voltage table 23 shown in the figure. 1... AC bus bar, 2... Conversion transformer, 3... AC/DC converter, 6... Instrument transformer, 7... ...Tap position signal, 8...
Secondary voltage calculation circuit, 9...Secondary side voltage value signal,
10...Secondary side voltage setting value, 11...
Addition circuit (adder), 21... Absolute value detection circuit, 22... Sign detection circuit, '23...
Voltage tape, 24... Comparison circuit, 25
...Tap value detection circuit, 26...Tap control circuit, 27...Timer circuit, 28...
...Tap switching output signal.

Claims

[Scope of utility model registration request]

In a tap changer for a transformer, a secondary voltage calculation circuit calculates a secondary voltage value of the transformer based on a primary voltage value of the transformer and a tap value of the transformer, and a secondary voltage calculation circuit that calculates a secondary voltage value of the transformer; An addition circuit that calculates the deviation between the value and the set value, an absolute value detection circuit and a sign detection circuit that detect the absolute value and sign of the deviation value, and a minimum secondary voltage value corresponding to one tap of the transformer. A voltage table in which values and maximum values are arranged up to the maximum tap for each tap value, a comparison circuit that sequentially reads and compares the absolute value of the deviation value and the value of the voltage table, and a comparison circuit that sequentially reads and compares the absolute value of the deviation value and the value of the voltage table, and the absolute value of the deviation value is the minimum value of the voltage table. a tap value detection circuit that memorizes a corresponding tap value on the condition that it exists between , and a tap control circuit that detects the tap switching direction based on the sign of the deviation value.