JPS58224599A - Automatic voltage controller for generator - Google Patents
Automatic voltage controller for generatorInfo
- Publication number
- JPS58224599A JPS58224599A JP57109208A JP10920882A JPS58224599A JP S58224599 A JPS58224599 A JP S58224599A JP 57109208 A JP57109208 A JP 57109208A JP 10920882 A JP10920882 A JP 10920882A JP S58224599 A JPS58224599 A JP S58224599A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- generator
- automatic
- set value
- automatic voltage
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、発電機の出力電圧を設定された値に自動的
に保つ自動電圧制御装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic voltage control device that automatically maintains the output voltage of a generator at a set value.
従来、この種の装置として、第１図に示すものがあった
。図において、１は発電機、１ａは発電機１の界磁巻線
、２はしゃ断器、３は降圧変圧器、４は電圧検出回路、
８は入力抵抗５、抵抗６およびコンデンサ７の組合せに
よる偏差増幅回路、１１は界磁巻ｍ１ａの電流を制御す
るサイリスタ、９はサイリスタ１１の位相制御回路、１
０はサイリスタ１１の点弧回路、１２は自動電圧調整装
置、１３．１４は電圧設定器、１５は自動同期投入で閉
に、並列投入で開になる常開接点、１６は自動同期投入
装置、１７は並列投入で閉に、単独運転で開になる常開
接点、１８は無効電力分担装置である。Conventionally, there has been a device of this type as shown in FIG. In the figure, 1 is a generator, 1a is a field winding of the generator 1, 2 is a breaker, 3 is a step-down transformer, 4 is a voltage detection circuit,
Reference numeral 8 denotes a deviation amplification circuit formed by a combination of input resistor 5, resistor 6, and capacitor 7; 11 denotes a thyristor for controlling the current of field winding m1a; 9 denotes a phase control circuit for thyristor 11;
0 is the ignition circuit of the thyristor 11, 12 is an automatic voltage regulator, 13.14 is a voltage setting device, 15 is a normally open contact that closes when automatic synchronization is applied and opens when parallel input is applied, 16 is an automatic synchronization activation device, Reference numeral 17 indicates a normally open contact that closes when parallel connection is applied and opens during independent operation, and 18 indicates a reactive power sharing device.
つぎに動作について説明する。単機運転時には、設定器
１３および１４からの設定入力は、抵抗５゜６およびコ
ンデンサ７の組合せからなる偏差増幅回路８に入力され
る。また発電機電圧も同様に、変圧器３、電圧検出回路
４および入力抵抗５を通して、設定入力とは逆電位で偏
差増幅回路８に入力される。したがって偏差増幅回路８
の出力は、発電機電圧と、設定器１３および１４による
設定入力との偏差量に比例した値となり、この出力によ
ってサイ９２２１１０位相が位相制御回ｗ！１９および
点弧回路１０を経由して制御される。すなわち発電機電
圧が設定器１３．１４の設定値よりも高いときは、サイ
９２２１１０位相を遅らせて界磁電流を減らし、発電機
電圧を下げる。逆に発電機電圧が設定値よりも低い場合
には、サイリスタ１１の位相を進めて界磁電流を増し、
発電機電圧（３）
を上げる。一方、自動同期投入開始では、常開接点１５
が閉じ、自動同期投入装置１６によって電圧整合が行わ
れる。また並行運転時には、同様に常開接点１７が閉じ
、無効電力分担装置１８によって発電機電圧を制御する
ことＫより無効電力の分担が行われる。Next, the operation will be explained. During single machine operation, setting inputs from the setting devices 13 and 14 are input to a deviation amplification circuit 8 consisting of a combination of a resistor 5.6 and a capacitor 7. Similarly, the generator voltage is also input to the deviation amplification circuit 8 through the transformer 3, voltage detection circuit 4, and input resistor 5 at a potential opposite to the set input. Therefore, the deviation amplification circuit 8
The output of is a value proportional to the amount of deviation between the generator voltage and the setting input by the setting devices 13 and 14, and this output changes the phase of the rhinoceros 922110 into the phase control circuit w! 19 and the ignition circuit 10. That is, when the generator voltage is higher than the set value of the setting devices 13 and 14, the phase of the rhinoceros 922110 is delayed to reduce the field current and lower the generator voltage. Conversely, if the generator voltage is lower than the set value, the phase of the thyristor 11 is advanced to increase the field current,
Increase generator voltage (3). On the other hand, at the start of automatic synchronization, normally open contact 15
is closed and voltage matching is performed by the automatic synchronization device 16. Further, during parallel operation, the normally open contact 17 is similarly closed, and reactive power is shared by controlling the generator voltage by the reactive power sharing device 18.
このような自動電圧調整装置だけＫよる従来の発電機定
電圧制御では、負荷変動時、ケーブルドロップなどによ
る電圧変動があるため、電圧設定器による手動の電圧調
整を要した。また自動同期投入時にも１両機の電圧を一
致させるために設定器による調整を要する等の欠点があ
った。In conventional generator constant voltage control using only such an automatic voltage adjustment device, manual voltage adjustment using a voltage setting device was required due to voltage fluctuations due to cable drops and the like when the load fluctuates. Furthermore, there were also drawbacks such as the need for adjustment using a setting device in order to match the voltages of both machines during automatic synchronization.
この発明は、発電機出力電圧を常圧監視し、電圧に変化
があれば自動電圧調整装置の設定値を自動的に変えるこ
とにより１発電機電圧を常に一定に保つようにした自動
電圧制御装置を提供することを目的としている。This invention is an automatic voltage control device that monitors the generator output voltage at normal pressure and automatically changes the set value of the automatic voltage regulator if there is a change in the voltage, thereby keeping the voltage of one generator constant at all times. is intended to provide.
以下、この発明の一実施例を図について説明する。第２
図において、１は発電機、１ａはその界磁巻線、２はし
ゃ断器、３は降圧変圧器、４は電（４）
圧検出回路、５は入力抵抗、６は抵抗、１はコンデンサ
、８は偏差増幅回路、９は位相制御回路、１０は点弧回
路、１１はサイリスタ、１２は自動電圧調整装置、１３
は電圧設定器である。これらの要素は第１図に示したも
のと同じであるので。An embodiment of the present invention will be described below with reference to the drawings. Second
In the figure, 1 is a generator, 1a is its field winding, 2 is a breaker, 3 is a step-down transformer, 4 is a voltage detection circuit, 5 is an input resistor, 6 is a resistor, 1 is a capacitor, 8 is a deviation amplifier circuit, 9 is a phase control circuit, 10 is an ignition circuit, 11 is a thyristor, 12 is an automatic voltage regulator, 13
is a voltage setting device. Since these elements are the same as shown in FIG.
対応する部分は同一の符号で示し、その説明を省略する
。Corresponding parts are indicated by the same reference numerals, and their explanation will be omitted.
さら［１９は電圧検出用変圧器、２０は発電機出力電圧
検出入力回路、２１は設定値入力回路である。２２は演
算回路で、発電機出力電圧検出入力回路２０の出力であ
る発電機出力電圧と、設定値入力回路２１の出力である
設定電圧とを比較し、その偏差信号を出力回路２３に出
力する。この出力回路２３は、演算回路２２からの出力
を受けて、自動電圧調整装置１２の設定値を変えるため
の信号を出力する。２４は、発電機出力電圧検出入力回
路２０．設定値入力回路２１、演算回路２２および出力
回路２３からなる発電機自動電圧補正装置である。Further, 19 is a voltage detection transformer, 20 is a generator output voltage detection input circuit, and 21 is a set value input circuit. 22 is an arithmetic circuit that compares the generator output voltage, which is the output of the generator output voltage detection input circuit 20, and the set voltage, which is the output of the set value input circuit 21, and outputs the difference signal to the output circuit 23. . The output circuit 23 receives the output from the arithmetic circuit 22 and outputs a signal for changing the set value of the automatic voltage regulator 12. 24 is a generator output voltage detection input circuit 20. This is an automatic generator voltage correction device consisting of a set value input circuit 21, an arithmetic circuit 22, and an output circuit 23.
通常、自動電圧調整装置１２は、電圧検出回路４で検出
した発電機出力電圧と、電圧設定器１３で設定された設
定電圧とを比較し、その間に偏差があれば、その偏差量
に見合う信号が偏差増幅器８に入力され、その出力に応
じて、位相制御回路９および点弧回路１０によりサイリ
スタ１１が制御される。これＫよって界磁巻線１ａの電
流が制御され、発電機１の出力電圧が一定に保たれる。Normally, the automatic voltage regulator 12 compares the generator output voltage detected by the voltage detection circuit 4 and the set voltage set by the voltage setting device 13, and if there is a deviation between them, a signal corresponding to the amount of deviation is sent. is input to the deviation amplifier 8, and the thyristor 11 is controlled by the phase control circuit 9 and the ignition circuit 10 according to the output thereof. This K controls the current in the field winding 1a and keeps the output voltage of the generator 1 constant.
ただし自動電圧調整装置１２だけでは、負荷変動時に変
化する発電機出力電圧の補正ができないのは前述のとお
りである。However, as described above, the automatic voltage regulator 12 alone cannot correct the generator output voltage that changes when the load fluctuates.
このような発電機出力電圧の変動を補正するために、こ
の発明では自動電圧補正装置２４が設けられている。す
なわち発電機出力電圧は、変圧器１９を通して電圧検出
入力口ｗ１２０により検出され、この検出電圧と、設定
器１３の設定値に対応する設定値入力回路２１の出力電
圧との間の偏差が演算回路２２によって常時比較監視さ
れる。そして偏差が検出されると、出力回路２３の出力
によって自動電圧調整装置１２の設定値を調整し、偏差
が零になるような制御が行われる。In order to correct such fluctuations in the generator output voltage, an automatic voltage correction device 24 is provided in the present invention. That is, the generator output voltage is detected by the voltage detection input port w120 through the transformer 19, and the deviation between this detected voltage and the output voltage of the set value input circuit 21 corresponding to the set value of the setting device 13 is determined by the calculation circuit. 22 for constant comparison and monitoring. When a deviation is detected, the set value of the automatic voltage regulator 12 is adjusted by the output of the output circuit 23, and control is performed such that the deviation becomes zero.
自動電圧調整装置１２の設定値の調整は、上記のように
電圧レベルの高低で行うほか、設定電圧の調整の動作中
または停止中の時間調整でも行うことができろ。すなわ
ち偏差が大きいとぎには電圧レベルを高くして界磁電流
を大きく変化させたり、あるいは調整動作時間と停止時
間との比を変化させる。The set value of the automatic voltage regulator 12 can be adjusted not only by adjusting the voltage level as described above, but also by adjusting the time while the set voltage is being adjusted or stopped. That is, when the deviation is large, the voltage level is increased to greatly change the field current, or the ratio between the adjustment operation time and the stop time is changed.
なお上記の実施例では、自動電圧調整装置として、電圧
レベルに応じて電圧調整する形式のものを示したが、出
力電圧を変えることができる入力をもつものであれば、
どのようなタイプでもよい。In the above embodiment, an automatic voltage regulator is shown that adjusts the voltage according to the voltage level, but if it has an input that can change the output voltage,
Any type is fine.
また設定器も、自動電圧調整装置および自動電圧補正装
置に共通のもののほか、同じ設定値をもつものであれば
、別個に設けてもよい。さらに発電機自動電圧補正装置
は、発電機出力電圧と設定値とを比較し、その偏差量に
応じて自動電圧調整装置の設定値を変える機能を有すも
のなら、図示のものに限定されない。Moreover, the setting device may be provided separately as long as it has the same setting value, in addition to the one common to the automatic voltage regulator and the automatic voltage correction device. Furthermore, the generator automatic voltage correction device is not limited to what is illustrated as long as it has the function of comparing the generator output voltage with a set value and changing the set value of the automatic voltage regulator according to the amount of deviation.
以上のようにこの発明によれば、負荷変動による発電機
電圧の変化を検出して自動電圧調整装置（７）
の設定値を調整する発電機自動電圧補正装置を設けたの
で、発電機電圧の精度がきわめて高くなるほか、同期投
入時の電圧整合および並行運転時の無効電力分担調整が
ほとんど不要となる効果がある０As described above, according to the present invention, since the generator automatic voltage correction device is provided which detects changes in the generator voltage due to load fluctuations and adjusts the set value of the automatic voltage regulator (7), the generator voltage can be adjusted. In addition to extremely high accuracy, it also has the effect of almost eliminating the need for voltage matching during synchronization and reactive power sharing adjustment during parallel operation.
第１図は従来の発電機自動電圧制御装置の回路図、第２
図はこの発明の発電機自動電圧制御装置の回路図である
。
１・・・発電機、１ａ・・・界磁巻線、３・・・変圧器
、４・・・電圧検出回路、５・・・久方抵抗、８・・・
偏差増幅回路、９・−・位相制御回路、１０・・・点弧
回路、１１・・−サイリスタ、１２・・・自動電圧調整
装置、１３°・・電圧設定器、１９・・・変圧器、２０
・・・電圧検出入力回路、２１・−・設定値入力回路、
２２・・・演算回路、２３・・・出力回路、２４・・・
発電機自動電圧補正回路。
なお、図中同一符号は同−又は相等部分を示す。
代理人 葛野信−（ほか１名）
（８）Figure 1 is a circuit diagram of a conventional generator automatic voltage control device, Figure 2
The figure is a circuit diagram of the generator automatic voltage control device of the present invention. DESCRIPTION OF SYMBOLS 1... Generator, 1a... Field winding, 3... Transformer, 4... Voltage detection circuit, 5... Kugata resistance, 8...
Deviation amplifier circuit, 9... Phase control circuit, 10... Ignition circuit, 11... - Thyristor, 12... Automatic voltage regulator, 13°... Voltage setting device, 19... Transformer, 20
... Voltage detection input circuit, 21... Setting value input circuit,
22... Arithmetic circuit, 23... Output circuit, 24...
Generator automatic voltage correction circuit. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Shin Kuzuno (1 other person) (8)
Claims (3)
間の偏差量に応じて上記発電機の界磁電流を調整するこ
とによって出力電圧を制御する自動電圧調整装置を備え
た発電機自動電圧制御装置において、上記発電機の出力
電圧を、上記自動電圧調整装置の設定値と共通の設定値
と比較し、この両人間の偏差量に応じて上記自動電圧調
整装置の設定値を変化させる自動電圧補正装置を設けた
ことを特徴とする発電機自動電圧制御装置。(1) Power generation equipped with an automatic voltage regulator that controls the output voltage by comparing the output voltage of the generator with a set value and adjusting the field current of the generator according to the amount of deviation between the two. The automatic voltage control device compares the output voltage of the generator with a set value common to the set value of the automatic voltage regulator, and adjusts the set value of the automatic voltage regulator according to the amount of deviation between the two. A generator automatic voltage control device characterized by being provided with an automatic voltage correction device that changes the voltage.
の設定値を変化させる過程で、変化させる時間と停止時
間との比を変更するように構成されている特許請求の範
囲第１項記載の発電機自動電圧制御装置。(2) The automatic voltage correction device is configured to change the ratio between the changing time and the stop time in the process of changing the set value of the automatic voltage adjusting device. Generator automatic voltage control device.
を検出する電圧検出入力回路と、上記自動電圧調整装置
の設定値を入力とする設定値入力回路と、上記電圧検出
入力回路および上記設定値入力回路の各出力を比較し、
その偏差量に見合う指令を出す演算回路と、その指令を
受けて、上記自動電圧調整装置の設定値を変える出力回
路とで構成されている特許請求の範囲第１項記載の発電
機自動電圧制御装置。(3) The automatic voltage correction device includes a voltage detection input circuit that detects the output voltage of the generator, a set value input circuit that inputs the setting value of the automatic voltage regulator, the voltage detection input circuit, and the Compare each output of the set value input circuit,
Automatic generator voltage control according to claim 1, comprising an arithmetic circuit that issues a command corresponding to the amount of deviation, and an output circuit that changes the set value of the automatic voltage regulator in response to the command. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57109208A JPS58224599A (en) | 1982-06-23 | 1982-06-23 | Automatic voltage controller for generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57109208A JPS58224599A (en) | 1982-06-23 | 1982-06-23 | Automatic voltage controller for generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58224599A true JPS58224599A (en) | 1983-12-26 |
| JPH0341035B2 JPH0341035B2 (en) | 1991-06-20 |
Family
ID=14504333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57109208A Granted JPS58224599A (en) | 1982-06-23 | 1982-06-23 | Automatic voltage controller for generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58224599A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5216994B2 (en) * | 2007-03-27 | 2013-06-19 | 国立大学法人滋賀医科大学 | Microwave surgical device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5338388A (en) * | 1976-09-20 | 1978-04-08 | Sanyo Electric Co Ltd | Gas concentration analyzer |
-
1982
- 1982-06-23 JP JP57109208A patent/JPS58224599A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5338388A (en) * | 1976-09-20 | 1978-04-08 | Sanyo Electric Co Ltd | Gas concentration analyzer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0341035B2 (en) | 1991-06-20 |
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