JP2000197395A - Voltage regulator for generator - Google Patents

Voltage regulator for generator

Info

Publication number
JP2000197395A
JP2000197395A JP10369105A JP36910598A JP2000197395A JP 2000197395 A JP2000197395 A JP 2000197395A JP 10369105 A JP10369105 A JP 10369105A JP 36910598 A JP36910598 A JP 36910598A JP 2000197395 A JP2000197395 A JP 2000197395A
Authority
JP
Japan
Prior art keywords
voltage
frequency
output
generator
comparator
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.)
Granted
Application number
JP10369105A
Other languages
Japanese (ja)
Other versions
JP3821592B2 (en
Inventor
Nobuo Fujisawa
宣夫 藤澤
Mitsuhiko Izumida
光彦 泉田
Masaaki Ito
誠章 伊藤
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.)
UIN TEKKU KK
IHI Shibaura Machinery Corp
Original Assignee
UIN TEKKU KK
IHI Shibaura Machinery 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 UIN TEKKU KK, IHI Shibaura Machinery Corp filed Critical UIN TEKKU KK
Priority to JP36910598A priority Critical patent/JP3821592B2/en
Publication of JP2000197395A publication Critical patent/JP2000197395A/en
Application granted granted Critical
Publication of JP3821592B2 publication Critical patent/JP3821592B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To keep the generating voltage of a synchronous generator at a constant level by converting the generating frequency of the synchronous generator into a voltage, comparing the converted voltage with first, second and third set levels and sustaining the voltage at a constant level between first and second frequencies and at a third frequency or above. SOLUTION: First second and third set voltages V1, V2, V3 correspond, respectively, to first, second and third frequencies, f1, f2, f3. More specifically, the voltage is set at three levels corresponding to respective frequencies and the frequency of a voltage generated from a synchronous generator 2 is converted into a voltage and compared with V1, V2, V3. A reference voltage Vb is constant when the starting frequency F of the generator 2 is f1<=F<f2 or f3<=F. In practice, a prime mover 3 is controlled to be driven at an r.p.m. corresponding to 50 Hz or 60 Hz. According to the arrangement, the generating voltage can be sustained at a constant level within a specified fluctuation region of r.p.m. even if the generator 2 is loaded to cause some fluctuation in the r.p.m.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、同期発電機の出力
電圧を所定の周波数の範囲で一定に制御する技術に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for controlling an output voltage of a synchronous generator to be constant within a predetermined frequency range.

【0002】[0002]

【従来の技術】従来から同期発電機をエンジン等で駆動
し、同期発電機に電機器具を接続して電力を供給して、
電機器具で作業しているときに、大きな負荷がかかり、
電流が増加して電機子反作用等による負荷が増大して、
エンジンの回転数が低下すると、発生電圧を維持しよう
として、発電機に設けた電圧調整装置から界磁電流を増
大させるようにしていた。このような同期発電機の自動
電圧調整装置は公知となっており、例えば、特公昭52
−4729号や特公平4−63637号等の技術があ
る。
2. Description of the Related Art Conventionally, a synchronous generator is driven by an engine or the like, and an electric appliance is connected to the synchronous generator to supply electric power.
When working with electrical equipment, a heavy load is applied,
The current increases and the load due to armature reaction increases,
When the rotation speed of the engine decreases, the field current is increased by a voltage regulator provided in the generator in order to maintain the generated voltage. Such an automatic voltage regulator for a synchronous generator is known in the art.
There are techniques such as -4729 and Japanese Patent Publication No. 4-63637.

【0003】前者の技術は、交流発電機の出力周波数が
所定値に達するまでは、交流発電機の出力電圧を出力周
波数に比例して制御し、出力周波数が所定値以上になっ
たときは出力電圧を一定値になるように交流発電機の界
磁を制御するようにしたものである。
In the former technique, the output voltage of the alternator is controlled in proportion to the output frequency until the output frequency of the alternator reaches a predetermined value. The field of the AC generator is controlled so that the voltage becomes constant.

【0004】また、後者の技術は、可変の直流定電圧電
源からの出力と、発電機から出力される周波数を電圧に
変換する変換器(以下FV変換器)からの出力を比較器
によって比較して、該比較器は低いほうの電圧を優先し
て出力して基準電圧とし、該基準電圧によって発電機の
界磁電流を制御して、周波数が所定値以上の周波数の範
囲ではその高低にかかわらず、自動的に一定値に調整
し、周波数が所定値以下ではFV変換器の出力を基準と
して自動調整されるようにしていた。
In the latter technique, an output from a variable DC constant voltage power supply is compared with an output from a converter (hereinafter referred to as an FV converter) for converting a frequency output from a generator into a voltage by a comparator. The comparator gives priority to the lower voltage and outputs it as a reference voltage. The comparator controls the field current of the generator with the reference voltage so that the frequency is higher than a predetermined value regardless of the level. Instead, the frequency is automatically adjusted to a constant value, and when the frequency is lower than a predetermined value, the frequency is automatically adjusted based on the output of the FV converter.

【0005】[0005]

【発明が解決しようとする課題】従来の技術では周波数
が所定値以上では一定の電圧となるように制御され、所
定値以下では周波数に比例した電圧となるように制御し
ており、所定値は一箇所である。しかし、現実には、東
日本では50Hz、西日本では60Hzの交流電源が使
用されており、その交流電圧の周波数に合わせた電気器
具が使用されるのが一般的であり、発電機もこの両方の
周波数に対応できるように、切り換えられるようにして
いる。例えば、2極同期発電機をエンジン(原動機)で
駆動する場合には、エンジンを3000回転で駆動した
ときには50Hzとし、3600回転で駆動したときに
は60Hzとしている。
In the prior art, when the frequency is higher than a predetermined value, the voltage is controlled to be constant, and when the frequency is lower than the predetermined value, the voltage is controlled so as to be proportional to the frequency. One place. However, in reality, an AC power supply of 50 Hz is used in eastern Japan and an AC power supply of 60 Hz is used in west Japan, and it is common to use electric appliances that match the frequency of the AC voltage. It is designed to be able to be switched so as to respond to For example, when the two-pole synchronous generator is driven by an engine (motor), the frequency is set to 50 Hz when the engine is driven at 3000 rotations and to 60 Hz when driven at 3600 rotations.

【0006】このとき、一定電圧が得られるように、エ
ンジンは3000回転または36000回転に一定とな
るようにガバナ等で制御されているが、負荷がかかると
数パーセントの変動はどうしても起きてしまうのであ
る。この回転数(周波数)の変動は電圧に影響するた
め、従来のように一箇所の設定値では50Hzまたは6
0Hzの一方にしか対応できなかったのである。本発明
はこのような点に鑑み、50Hzおよび60Hzの周波
数に対応できるように、設定値を三箇所設定して現実的
に各周波数に対応して、発電機から発生した電圧を一定
に保つようにしようとする。
At this time, the engine is controlled by a governor or the like so as to keep a constant voltage at 3000 or 36000 rpm so that a constant voltage is obtained. is there. Since the fluctuation of the number of rotations (frequency) affects the voltage, the value set at one location is 50 Hz or 6 Hz as in the related art.
Only one of 0 Hz could be dealt with. In view of the above, the present invention sets three set values so as to correspond to the frequencies of 50 Hz and 60 Hz, and realistically corresponds to each frequency to keep the voltage generated from the generator constant. Try to.

【0007】[0007]

【課題を解決するための手段】本発明は上記課題を解決
するために次の如く構成した。即ち、同期発電機の出力
電圧と周波数を検知して、周波数を電圧に変換して基準
電圧と比較して、その出力によって前記同期発電機の界
磁電流を制御して一定電圧に保つ構成において、第一周
波数と第二周波数と第三周波数を設定して、それぞれの
周波数に相当する第一設定電圧、第二設定電圧、第三設
定電圧を設定して、前記同期発電機の発生電圧の周波数
を電圧に変換して前記第一設定電圧、第二設定電圧、第
三設定電圧と比較し、第一周波数と第二周波数の間、及
び、第三周波数以上を一定の電圧に維持するように制御
したものである。
The present invention has the following construction to solve the above-mentioned problems. That is, in the configuration in which the output voltage and the frequency of the synchronous generator are detected, the frequency is converted into a voltage, compared with a reference voltage, and the output controls the field current of the synchronous generator to keep the voltage constant. Setting the first frequency, the second frequency, and the third frequency, and setting the first set voltage, the second set voltage, and the third set voltage corresponding to the respective frequencies, and setting the generated voltage of the synchronous generator. The frequency is converted into a voltage, and the first set voltage, the second set voltage, and the third set voltage are compared with each other, and between the first frequency and the second frequency, and the third frequency or more are maintained at a constant voltage. Is controlled.

【0008】[0008]

【発明の実施の形態】以下、本発明の電圧調整装置を図
面を参照しながら説明する。図1は本発明の電圧調整装
置の回路図、図2は周波数とFV変換器の出力電圧の関
係を示す図である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a voltage regulator according to the present invention will be described with reference to the drawings. FIG. 1 is a circuit diagram of a voltage regulator according to the present invention, and FIG. 2 is a diagram showing a relationship between a frequency and an output voltage of an FV converter.

【0009】図1において、1は本発明の電圧調整装置
であり、2は発電機、3はエンジン等の原動機である。
発電機2は固定子4の軸芯部に回転子を挿入し、該回転
子を原動機3によって回転駆動させる。該回転子には界
磁コイル5が巻かれ励磁装置6によって直流を通じて電
磁石を構成している。該励磁装置6に本発明の電圧調整
装置1が接続さて、界磁を調整できるようにしている。
該励磁装置6は積分増幅器または発振回路等より構成さ
れる。
In FIG. 1, reference numeral 1 denotes a voltage regulator of the present invention, 2 denotes a generator, and 3 denotes a prime mover such as an engine.
In the generator 2, a rotor is inserted into the shaft of the stator 4, and the rotor is driven to rotate by the motor 3. A field coil 5 is wound around the rotor, and an exciting device 6 forms an electromagnet through direct current. The voltage adjusting device 1 of the present invention is connected to the exciting device 6 so that the field can be adjusted.
The excitation device 6 includes an integrating amplifier or an oscillation circuit.

【0010】本発明の電圧調整装置1は変圧器10、整
流回路11、FV変換器12、複数の設定電圧設定器1
3・14・15及び複数の比較器21〜25等より構成
されている。前記変圧器10は発電機2によって発生し
た電圧を所定の電圧に落として、該変圧器10の二次側
に整流回路11を接続して整流し、直流に変換して比較
器25の一側に入力している。この直流は発電機2で発
生した電圧に比例した値となり、これを発生電圧Viと
している。
A voltage regulator 1 of the present invention includes a transformer 10, a rectifier circuit 11, an FV converter 12, and a plurality of set voltage setting devices 1.
3, 14, 15 and a plurality of comparators 21 to 25. The transformer 10 reduces the voltage generated by the generator 2 to a predetermined voltage, connects a rectifier circuit 11 to the secondary side of the transformer 10, rectifies the converted voltage, converts the rectified current to direct current, and converts the DC to one side Is being entered. This DC has a value proportional to the voltage generated by the generator 2 and is referred to as a generated voltage Vi.

【0011】また、前記変圧器10の二次側に発生した
の交流をFV変換器12に入力して、直流として出力す
る。このFV変換器12は周波数に比例した電圧が出力
され、その出力電圧をVaとする。この出力電圧Vaは
比較器21・22に入力され、それぞれ設定電圧V1・
V2と比較される。第一設定電圧V1は図2に示すよう
に、第一周波数f1に相当する電圧であり、第二設定電
圧V2は第二周波数f2に相当する電圧であり、第二周
波数f2は第一周波数f1より大きく、第一周波数f1
と第二周波数f2の間に50Hzに相当する周波数が位
置し、発電機2を50Hzで運転しているときに、f1
〜f2の領域が通常運転時における負荷変動の最大変動
域としている。また、設定電圧V3は第三周波数f3に
相当し、発電機2を60Hzで運転しているときに、第
三周波数f3が通常の負荷変動による最低変動値として
いる。
The AC generated on the secondary side of the transformer 10 is input to the FV converter 12 and output as DC. The FV converter 12 outputs a voltage proportional to the frequency, and the output voltage is defined as Va. This output voltage Va is input to the comparators 21 and 22, and the set voltage V1.
V2. As shown in FIG. 2, the first set voltage V1 is a voltage corresponding to the first frequency f1, the second set voltage V2 is a voltage corresponding to the second frequency f2, and the second frequency f2 is the first frequency f1. Greater than the first frequency f1
And a frequency corresponding to 50 Hz is located between the second frequency f2 and the second frequency f2.
The range from f2 to f2 is the maximum fluctuation range of the load fluctuation during normal operation. Further, the set voltage V3 corresponds to the third frequency f3, and when the generator 2 is operated at 60 Hz, the third frequency f3 has a minimum fluctuation value due to a normal load fluctuation.

【0012】前記比較器21の他方の入力側には第一電
圧設定器13が接続され、前記第一周波数f1に相当す
る第一設定電圧V1が印加され、前記出力電圧Vaと第
一設定電圧V1が比較され、出力電圧Vaが第一設定電
圧V1より低い場合にはVaが出力され、出力電圧Va
が第一設定電圧V1より高くなるとV1が出力されるよ
うにしている。前記第一電圧設定器13及び後述する第
二・第三電圧設定器14・15は本実施例では可変抵抗
によって構成されている。また、前記比較器22の他方
の入力側には第二電圧設定器14が接続され、前記第二
周波数f2に相当する第二設定電圧V2が入力され、前
記VaとV2が比較され、出力電圧Vaが第二設定電圧
V2より低い場合には出力されず、出力電圧Vaが第二
設定電圧V2より高くなると電圧Vaが出力されるよう
にしている。
A first voltage setter 13 is connected to the other input side of the comparator 21, and a first set voltage V1 corresponding to the first frequency f1 is applied. V1 is compared, and when the output voltage Va is lower than the first set voltage V1, Va is output, and the output voltage Va is output.
Is higher than the first set voltage V1, V1 is output. In the present embodiment, the first voltage setting device 13 and second and third voltage setting devices 14 and 15 described later are constituted by variable resistors. A second voltage setting unit 14 is connected to the other input side of the comparator 22, a second setting voltage V2 corresponding to the second frequency f2 is input, the Va is compared with V2, and the output voltage is When Va is lower than the second set voltage V2, the voltage Va is not output. When the output voltage Va becomes higher than the second set voltage V2, the voltage Va is output.

【0013】そして、前記比較器21と比較器22の出
力側には比較器24の入力側に接続されてそれぞれの入
力電圧を比較し、高い方の電圧が出力される。つまり、
第一周波数f1以下では比較器21より電圧Vaが出力
され、比較器22からは出力がないため電圧Vaが出力
され、周波数f1〜f2では第一設定電圧V1が出力さ
れる。第二周波数f2以上では比較器21から出力され
る電圧V1と、比較器22より出力される電圧Vaと比
較され、Vaのほうが高いのでVaが出力される。
The output side of the comparator 21 and the output side of the comparator 22 are connected to the input side of a comparator 24 to compare respective input voltages and output a higher voltage. That is,
The voltage Va is output from the comparator 21 below the first frequency f1, the voltage Va is output because there is no output from the comparator 22, and the first set voltage V1 is output from the frequencies f1 and f2. At the second frequency f2 or higher, the voltage V1 output from the comparator 21 is compared with the voltage Va output from the comparator 22, and Va is output because Va is higher.

【0014】そして、前記比較器23の一方の入力側に
前記比較器24からの出力電圧が入力され、他方の入力
側には周波数f3に相当する第三設定電圧V3が入力さ
れる。そして、両電圧を比較して、比較器24からの出
力電圧がV3より高くなると電圧V3が出力され、低い
場合は比較器24からの出力電圧がそのまま出力される
ようにしている。この比較器23の出力側には外部の出
力電圧調整用の可変抵抗7と接続され、この可変抵抗7
の出力電圧を基準電圧Vbとし、前記整流回路11から
の出力電圧(発生電圧Vi)が基準電圧Vbと比較器2
5によって比較され、その差を励磁装置6に出力して、
発生電圧Viが基準電圧Vbと一致するように界磁コイ
ル5に界磁電流を流すのである。なお、前記可変抵抗7
を調整することによって、図3の出力電圧のレベルを変
更できる。
The output voltage from the comparator 24 is input to one input side of the comparator 23, and the third set voltage V3 corresponding to the frequency f3 is input to the other input side. The two voltages are compared, and when the output voltage from the comparator 24 is higher than V3, the voltage V3 is output, and when the output voltage is low, the output voltage from the comparator 24 is output as it is. The output side of the comparator 23 is connected to an external variable resistor 7 for adjusting the output voltage.
Is the reference voltage Vb, and the output voltage (generated voltage Vi) from the rectifier circuit 11 is the reference voltage Vb and the comparator 2
5, and outputs the difference to the excitation device 6,
The field current flows through the field coil 5 so that the generated voltage Vi matches the reference voltage Vb. The variable resistor 7
Can be adjusted to change the level of the output voltage in FIG.

【0015】即ち、始動時の発電機2の周波数Fが第一
周波数f1以下の場合には(0≦F<f1)、FV変換
器12からの出力電圧Vaは第一設定電圧V1より低い
ため、比較器21からはVaが出力され、比較器24・
23の出力もVaとなり、比較器25においてVaと前
記発生電圧Viが比較されて、原動機の回転数に比例し
た電圧が基準となっている。
That is, when the frequency F of the generator 2 at the time of starting is equal to or lower than the first frequency f1 (0 ≦ F <f1), the output voltage Va from the FV converter 12 is lower than the first set voltage V1. , The comparator 21 outputs Va, and the comparator 24
The output of 23 also becomes Va, and the comparator 25 compares Va with the generated voltage Vi, and a voltage proportional to the rotation speed of the prime mover is used as a reference.

【0016】発電機2の周波数Fが第一周波数f1から
第二周波数f2の間の場合には(f1≦F<f2)、比
較器21の出力はV1となり、比較器24・23の出力
もV1となり、比較器25においてV1が基準電圧Vb
として発生電圧Viと比較されて、発電機2の発生電圧
ViがVbと一致するように励磁装置6に入力されて、
該励磁装置6より界磁コイル5に電流が流される。つま
り、発生電圧が基準電圧より高くなると、界磁コイル5
に流す電流を少なくして発電機2からの発生電圧を低下
させ、発生電圧が基準電圧より低くなると、界磁コイル
5に流す電流を増加して発生電圧を高くするのである。
When the frequency F of the generator 2 is between the first frequency f1 and the second frequency f2 (f1 ≦ F <f2), the output of the comparator 21 is V1, and the outputs of the comparators 24 and 23 are also V1 and the comparator 25 sets the reference voltage Vb to the reference voltage Vb.
Is input to the excitation device 6 such that the generated voltage Vi of the generator 2 matches Vb.
A current flows from the exciting device 6 to the field coil 5. That is, when the generated voltage is higher than the reference voltage, the field coil 5
When the generated voltage is lower than the reference voltage, the current flowing through the field coil 5 is increased to increase the generated voltage.

【0017】また、周波数Fが第二周波数f2から第三
周波数f3の間の場合には(f2≦F<f3)、比較器
21の出力はV1となり、比較器22の出力がVaとな
り、VaがV1より高いため比較器24からの出力はV
aとなって、比較器23の出力もVaとなり、比較器2
5においてVaを基準電圧Vbとして発生電圧Viと比
較されて、発電機2の発生電圧ViがVaと一致するよ
うに前記同様に励磁装置6に入力されて、該励磁装置6
より界磁コイル5に電流が流される。
When the frequency F is between the second frequency f2 and the third frequency f3 (f2 ≦ F <f3), the output of the comparator 21 becomes V1, the output of the comparator 22 becomes Va, and the output of the comparator 22 becomes Va. Is higher than V1, the output from the comparator 24 is V
a, the output of the comparator 23 also becomes Va, and the comparator 2
5, the voltage Va is compared with the generated voltage Vi using the reference voltage Vb, and the generated voltage Vi of the generator 2 is input to the exciting device 6 in the same manner as described above so as to match Va.
A current flows through the field coil 5.

【0018】また、周波数Fが第三周波数f3以上の場
合には(f3≦F)、比較器24の出力はVaとなり、
Vaは第三設定電圧V3より高いため比較器23からの
出力はV3となって、比較器25においてV3を基準電
圧として発生電圧Viと比較されて、発電機2の発生電
圧ViがV3と一致するように前記同様に励磁装置6に
入力されて、該励磁装置6より界磁コイル5に電流が流
される。
When the frequency F is equal to or higher than the third frequency f3 (f3 ≦ F), the output of the comparator 24 becomes Va,
Since Va is higher than the third set voltage V3, the output from the comparator 23 becomes V3, and is compared in the comparator 25 with the generated voltage Vi using V3 as a reference voltage, and the generated voltage Vi of the generator 2 matches V3. In the same manner as described above, the current is input to the excitation device 6, and a current flows through the field coil 5 from the excitation device 6.

【0019】このようにして、基準電圧Vbは図3のよ
うに、f1≦F<f2とf3≦Fで一定となり、現実に
は、原動機3を50Hzまたは60Hzに合わせた回転
数で駆動することによって、発電機2に負荷がかかって
回転数が多少変動しても、50Hzまたは60Hzで出
力するために元々予想された範囲内の回転数変動域で、
確実に、定電圧で出力できるようになるのである。な
お、負荷変動によって予想した周波数範囲域を出るとエ
ンスト等が発生して出力自体が困難となり、無理して原
動機を駆動させても損傷を及ぼすだけである。
As described above, the reference voltage Vb is constant at f1 ≦ F <f2 and f3 ≦ F as shown in FIG. 3, and in practice, the prime mover 3 is driven at a rotation speed adjusted to 50 Hz or 60 Hz. Therefore, even if the load is applied to the generator 2 and the rotational speed fluctuates somewhat, the rotational speed fluctuates within the range originally expected to output at 50 Hz or 60 Hz.
As a result, it is possible to output at a constant voltage. It should be noted that when the vehicle goes out of the expected frequency range due to the load fluctuation, an engine stall or the like occurs and the output itself becomes difficult. Even if the prime mover is forcedly driven, it will only cause damage.

【0020】[0020]

【発明の効果】本発明は以上のとおり構成したので、次
のような効果を奏する。即ち、同期発電機の出力電圧と
周波数を検知して、周波数を電圧に変換して基準電圧と
比較して、その出力によって前記同期発電機の界磁電流
を制御して一定電圧に保つ構成において、第一周波数と
第二周波数と第三周波数を設定して、それぞれの周波数
に相当する第一設定電圧、第二設定電圧、第三設定電圧
を設定して、前記同期発電機の発生電圧の周波数を電圧
に変換して前記第一設定電圧、第二設定電圧、第三設定
電圧と比較し、第一周波数と第二周波数の間、及び、第
三周波数以上を一定の電圧に維持するように制御したの
で、特定の出力周波数、現実には50Hzと60Hzに
おいて、負荷変動が生じて周波数が変動しても、一定電
圧に保つことができるようになり、現実に対応した制御
ができて、安定した出力が得られるようになり、信頼性
も向上できるのである。
As described above, the present invention has the following advantages. That is, in a configuration in which the output voltage and the frequency of the synchronous generator are detected, the frequency is converted into a voltage, compared with a reference voltage, and the output controls the field current of the synchronous generator to keep the voltage constant. Setting the first frequency, the second frequency, and the third frequency, and setting the first set voltage, the second set voltage, and the third set voltage corresponding to the respective frequencies, and setting the generated voltage of the synchronous generator. The frequency is converted to a voltage, and the first set voltage, the second set voltage, and the third set voltage are compared with each other, and between the first frequency and the second frequency, and the third frequency or more are maintained at a constant voltage. Therefore, even if a load fluctuates at a specific output frequency, actually 50 Hz and 60 Hz, and the frequency fluctuates, a constant voltage can be maintained, and control corresponding to reality can be performed. So that a stable output can be obtained Ri, it can improve reliability.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の電圧調整装置の回路図である。FIG. 1 is a circuit diagram of a voltage regulator according to the present invention.

【図2】周波数と電圧調整装置のFV変換器の出力電圧
の関係を示す図である。
FIG. 2 is a diagram illustrating a relationship between a frequency and an output voltage of an FV converter of the voltage regulator.

【図3】周波数と電圧調整装置の基準電圧の関係を示す
図である。
FIG. 3 is a diagram illustrating a relationship between a frequency and a reference voltage of a voltage regulator.

【符号の説明】[Explanation of symbols]

2 同期発電機 6 励磁回路 7 出力電圧調整用の可変抵抗 12 周波数−電圧変換器 21・22・23・24・25 比較器 f1 第一周波数 f2 第二周波数 f3 第三周波数 2 Synchronous generator 6 Excitation circuit 7 Variable resistor for output voltage adjustment 12 Frequency-voltage converter 21 ・ 22 ・ 23 ・ 24 ・ 25 Comparator f1 First frequency f2 Second frequency f3 Third frequency

フロントページの続き (72)発明者 泉田 光彦 大阪市淀川区田川1丁目5番20号 株式会 社ウイン・テック内 (72)発明者 伊藤 誠章 長野県松本市石芝1丁目1番1号 石川島 芝浦機械株式会社松本工場内 Fターム(参考) 5H590 AA15 AA28 CA07 CC01 CC18 CD01 CE10 DD64 EA13 EB02 EB12 EB17 EB20 EB21 EB29 FA06 FC27 GA02 GB02 HA02 HA09 HB06 JA07 JA13 JB05 JB07 Continued on the front page (72) Inventor Mitsuhiko Izuda 1-5-20 Tagawa, Yodogawa-ku, Osaka-shi Inside WinTech Co., Ltd. (72) Inventor Masaaki Ito 1-1-1 Ishiba, Matsumoto-shi, Nagano Prefecture Shibaura Ishikawa F-term (reference) in Matsumoto Factory of Machinery Co., Ltd. 5H590 AA15 AA28 CA07 CC01 CC18 CD01 CE10 DD64 EA13 EB02 EB12 EB17 EB20 EB21 EB29 FA06 FC27 GA02 GB02 HA02 HA09 HB06 JA07 JA13 JB05 JB07

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 同期発電機の出力電圧と周波数を検知し
て、周波数を電圧に変換して基準電圧と比較して、その
出力によって前記同期発電機の界磁電流を制御して一定
電圧に保つ構成において、第一周波数と第二周波数と第
三周波数を設定して、それぞれの周波数に相当する第一
設定電圧、第二設定電圧、第三設定電圧を設定して、前
記同期発電機の発生電圧の周波数を電圧に変換して前記
第一設定電圧、第二設定電圧、第三設定電圧と比較し、
第一周波数と第二周波数の間、及び、第三周波数以上を
一定の電圧に維持するように制御したことを特徴とする
発電機の電圧調整装置。
1. An output voltage and a frequency of a synchronous generator are detected, the frequency is converted into a voltage, and the voltage is compared with a reference voltage. In the configuration to keep, the first frequency, the second frequency and the third frequency are set, the first set voltage corresponding to each frequency, the second set voltage, the third set voltage is set, the synchronous generator The frequency of the generated voltage is converted into a voltage, the first set voltage, the second set voltage, and compared with the third set voltage,
A voltage regulator for a generator, wherein the voltage regulator is controlled to maintain a constant voltage between a first frequency and a second frequency, and a frequency equal to or higher than a third frequency.
JP36910598A 1998-12-25 1998-12-25 Generator voltage regulator Expired - Fee Related JP3821592B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP36910598A JP3821592B2 (en) 1998-12-25 1998-12-25 Generator voltage regulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP36910598A JP3821592B2 (en) 1998-12-25 1998-12-25 Generator voltage regulator

Publications (2)

Publication Number Publication Date
JP2000197395A true JP2000197395A (en) 2000-07-14
JP3821592B2 JP3821592B2 (en) 2006-09-13

Family

ID=18493577

Family Applications (1)

Application Number Title Priority Date Filing Date
JP36910598A Expired - Fee Related JP3821592B2 (en) 1998-12-25 1998-12-25 Generator voltage regulator

Country Status (1)

Country Link
JP (1) JP3821592B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006238508A (en) * 2005-02-22 2006-09-07 Nippon Sharyo Seizo Kaisha Ltd Portable engine generator
JP2006345586A (en) * 2005-06-07 2006-12-21 Nippon Sharyo Seizo Kaisha Ltd Automatic voltage regulator of synchronous generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006238508A (en) * 2005-02-22 2006-09-07 Nippon Sharyo Seizo Kaisha Ltd Portable engine generator
JP2006345586A (en) * 2005-06-07 2006-12-21 Nippon Sharyo Seizo Kaisha Ltd Automatic voltage regulator of synchronous generator
JP4679970B2 (en) * 2005-06-07 2011-05-11 日本車輌製造株式会社 Automatic voltage regulator for synchronous generator

Also Published As

Publication number Publication date
JP3821592B2 (en) 2006-09-13

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