JPS60181199U

JPS60181199U - automatic voltage regulator

Info

Publication number: JPS60181199U
Application number: JP6788884U
Authority: JP
Inventors: 上月　良介
Original assignee: 西芝電機株式会社
Priority date: 1984-05-11
Filing date: 1984-05-11
Publication date: 1985-12-02
Also published as: JPH058799Y2

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図は本考案のＶ／Ｆ制御を行なう自動電圧調整装置
の一実施例を示すブロック図、第２図はＶ／Ｆ制御を行
なった発電機電圧の特性図、第３図は本考案に使用する
周波数検出回路の一実施例を示す回路図、第４図は第３
図の回路構成における出力電圧特性図、第５図は本考案
に使用する周波数検出回路の他の実施例を示す回路図で
ある。Ａ・・・電圧検出回路、Ｂ・・・周波数検出回路、Ｃ・
・・誤差増巾回路、Ｄ・・・点弧角制御回路、ＶＳ・・
・基準電圧、１・・・交流電圧源、２・・・ベース抵抗
、３・・・逆電圧阻止ダイオード、４・・・トランジス
タ、５・・・コレクタ抵抗、６・・・クランプ定電圧ダ
イオード、７・・・微分コンデンサ、８・・・正電圧微
分パルス用ダイオード、１０・・・負電圧微分パルス用
ダイオード、９、　１１．２１・・・負荷抵抗、１２．
１３・・・入力抵抗、１５．１７・・・積分コンデンサ
、１６．１８・・・帰還抵抗、１９・・・演算増巾器。ジ（１周波数ｆ　　　　ｔＨス〕ＩｌｌＴ　　第２図Ｌｌ浜電機周悠ＪFig. 1 is a block diagram showing an embodiment of an automatic voltage regulator that performs V/F control according to the present invention, Fig. 2 is a characteristic diagram of the generator voltage when V/F control is performed, and Fig. 3 is a diagram showing the characteristics of the generator voltage according to the present invention. A circuit diagram showing an example of a frequency detection circuit used in
FIG. 5 is a circuit diagram showing another embodiment of the frequency detection circuit used in the present invention. A...Voltage detection circuit, B...Frequency detection circuit, C.
...error amplification circuit, D...firing angle control circuit, VS...
・Reference voltage, 1... AC voltage source, 2... Base resistor, 3... Reverse voltage blocking diode, 4... Transistor, 5... Collector resistor, 6... Clamp constant voltage diode, 7... Differential capacitor, 8... Diode for positive voltage differential pulse, 10... Diode for negative voltage differential pulse, 9, 11.21... Load resistor, 12.
13... Input resistance, 15.17... Integrating capacitor, 16.18... Feedback resistor, 19... Arithmetic amplifier. Di (1 frequency f tH) Ill T Figure 2 Ll Hama Denki Shuyu J

Claims

[Scope of utility model registration request]

(1) A voltage detection circuit that detects the output voltage of the synchronous generator, a reference voltage that sets the output voltage of the synchronous generator, and a frequency element that detects a frequency from the output voltage of the synchronous generator and corresponds to the frequency. a frequency detection circuit for extracting the voltage; and a frequency detection circuit for the synchronous generator in order to make the deviation between the set voltage signal obtained by adding the reference voltage signal and the frequency element voltage signal and the output voltage signal of the voltage detection circuit to almost zero. An automatic voltage regulator comprising: an error amplification circuit that generates a control signal for controlling an excitation current flowing through a field winding.

(2) The frequency detection circuit that extracts the frequency element voltage includes an AC voltage source that detects the frequency from the output voltage of the synchronous generator, and a base connected to one terminal of the output of the AC voltage source via a base resistor. A transistor with a load resistor connected to its collector, a differential capacitor that differentiates the square wave signal of the collector output of this transistor, and a differential pulse outputted to positive and negative voltages by the differential capacitor as a positive voltage differential pulse and a negative voltage differential pulse. Two diodes connected in parallel to separate into pulses, and an arithmetic amplifier that inputs a positive voltage differential pulse to an inverting input terminal, inputs a negative voltage differential pulse to a non-inverting input terminal, and differentially amplifies both pulses. The automatic voltage regulator according to claim 1, characterized in that the automatic voltage regulator is constituted by a width bracket.