JPS5842694B2 - Jidou Fukuki Yusouchi - Google Patents
Jidou Fukuki YusouchiInfo
- Publication number
- JPS5842694B2 JPS5842694B2 JP48017214A JP1721473A JPS5842694B2 JP S5842694 B2 JPS5842694 B2 JP S5842694B2 JP 48017214 A JP48017214 A JP 48017214A JP 1721473 A JP1721473 A JP 1721473A JP S5842694 B2 JPS5842694 B2 JP S5842694B2
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- Prior art keywords
- voltage
- generator
- generators
- resistor
- setting
- 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.)
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- Supply And Distribution Of Alternating Current (AREA)
Description
【発明の詳細な説明】
本発明は複数台の発電機の接続母線に連繋される系統側
に事故が発生したときこの事故で事故系統から分離され
単独運転となった発電機を事故系統の回復をまって自動
的に再投入し平常に復旧させる自動復旧装置に関する。DETAILED DESCRIPTION OF THE INVENTION When an accident occurs in a system connected to a connecting bus of multiple generators, the present invention recovers the generator that was separated from the accident system and operated independently due to the accident. This invention relates to an automatic recovery device that automatically re-energizes the battery after a long wait to restore normal operation.
従来、この種自動復旧装置が適用される第1図に示すよ
うな発電機G1.G2をしゃ断器52−1゜52−2を
各別に介して母線Cに接続し、また母線Cには負荷りを
連繋するとともに主変圧器T1母線Bおよびしゃ断器1
52を介して系統Aを連繋してなる系統では事故系統の
回復時系銃側の電圧有を電圧検出リレー184■で検出
してこれを条件にしゃ断器52−1 、52−2を一旦
トリップし無電圧状態としてからしゃ断器152を投入
し系統Aから母線BおよびCに送電して負荷りに電力を
供給するようにし、−力発電機G1.G2では変成器P
Tcより抽出される母線Cの電気量および変成器PTG
1.PTG2より夫々抽出される発電機G1.G2の出
力から自動同期検出装置により同期調整され、その後し
ゃ断器52−1.52−2を投入して平常に復旧するよ
うにしている。Conventionally, this type of automatic recovery device is applied to a generator G1. as shown in FIG. G2 is connected to the bus C through separate circuit breakers 52-1 and 52-2, and the load is connected to the bus C, and the main transformer T1 is connected to the bus B and the circuit breaker 1.
In a system in which system A is connected via line 52, voltage detection relay 184■ detects the presence of voltage on the recovery time line gun side of the accident system, and on this condition, circuit breakers 52-1 and 52-2 are tripped once. Then, after bringing the voltage to a no-voltage state, the breaker 152 is turned on to transmit power from the system A to the buses B and C to supply power to the loads, and - the power generator G1. In G2, transformer P
Electricity of bus C extracted from Tc and transformer PTG
1. Generators G1., respectively extracted from PTG2. The automatic synchronization detection device performs synchronization adjustment based on the output of G2, and then the circuit breakers 52-1 and 52-2 are turned on to restore normal operation.
しかしながら、かかる従来の復旧装置によると発電機点
数が多くなると自動復旧時発電機は順次同期並列をとっ
てから発電機側しゃ断器を投入するようにしているため
復旧時間が極めて長くなり、また回路も複雑になる欠点
があった。However, according to such conventional recovery devices, when the number of generators increases, the generators are sequentially synchronously parallelized at the time of automatic recovery, and then the generator-side breaker is turned on, so the recovery time becomes extremely long, and the circuit It also had the disadvantage of being complicated.
また−且全ての発電機を母線から切り離し無電圧となる
ため単独系統の負荷を有するもの又は所定負荷を有する
ものには好ましくなかった。In addition, since all the generators are disconnected from the bus bar and there is no voltage, it is not preferable for a system with a load of a single system or a system with a predetermined load.
本発明はよ記事情に鑑みてなされたもので、自動復旧時
間を大巾に短縮できるとともに接続母線の無停電化を図
ることができ上記不都合を除去できる自動復旧装置を提
供することを目的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an automatic recovery device that can greatly shorten the automatic recovery time, achieve uninterrupted connection of the connecting bus, and eliminate the above-mentioned disadvantages. do.
以下、本発明の一実施例を図面の簡単な説明する。Hereinafter, one embodiment of the present invention will be briefly described with reference to the drawings.
即ち、第2図は第1図と同一部分には同符号を付して示
す本願自動復旧装置が適用される系統を示している。That is, FIG. 2 shows a system to which the automatic recovery device of the present invention is applied, where the same parts as in FIG. 1 are denoted by the same reference numerals.
この場合、15は母線Bの周波数を系統Aのそれに合わ
せる自動揃速装置、60は母線Bの電圧を系統Aのそれ
に合わせる自動電圧調整装置、25は母線Bが系統Aに
位相同期すると出力を発生する自動同期装置で、これら
装置15.60,25はその一端を電圧検出リレー18
4■の常開接点184V7、後述する自動復旧起動リレ
ー186Xの常開接点186X4および変成器PTL1
を介してしゃ断器152の系統A側端に、また他端を上
記電圧検出リレー184■の常開接点184V3、上記
起動リレー186Xの常開接点186X、および変成器
P T”L 2を介してし゛や断器152の母線B側端
に接続している。In this case, 15 is an automatic speed adjusting device that adjusts the frequency of bus B to that of system A, 60 is an automatic voltage regulator that adjusts the voltage of bus B to that of system A, and 25 is an output when bus B is phase synchronized with system A. These devices 15, 60, 25 connect one end to the voltage detection relay 18.
Normally open contact 184V7 of 4■, normally open contact 186X4 of automatic recovery start relay 186X described later, and transformer PTL1
to the system A side end of the circuit breaker 152, and the other end to the normally open contact 184V3 of the voltage detection relay 184■, the normally open contact 186X of the starting relay 186X, and the transformer P T"L 2. It is connected to the busbar B side end of the disconnector 152.
AVR1tAVR2は変成器PTG1.PTG、を各別
に介してしゃ断器52−1.52−2の発電機側端に接
続された電圧調整器で、これら調整器AvR1,AVR
2はその出力で1号および2号発電機G、 、 G2の
励磁系を付勢するようにしている。AVR1tAVR2 is the transformer PTG1. A voltage regulator connected to the generator side end of the circuit breaker 52-1 and 52-2 through the PTG separately.
No. 2 uses its output to energize the excitation systems of No. 1 and No. 2 generators G, , and G2.
TD−VAR,。TD−VAR2は上記起動リレー18
6Xの常開格点186Xa、186X7を告知jに介し
て上記変成器PTG1.PTG2の出力端に接続された
無効型カドランジューサで、これらトフノシュニサTD
−VAR1,TD −VAR2は各発電機G1.・G2
の無効電力を抽出するようにしている。TD-VAR,. TD-VAR2 is the starting relay 18 mentioned above.
The normally open points 186Xa and 186X7 of 6X are connected to the transformer PTG1. These Tofunosunisa TDs are disabled type quadrangulators connected to the output terminal of PTG2.
-VAR1, TD -VAR2 are each generator G1.・G2
The system is designed to extract reactive power.
soR,;5oR2は上記電圧調整器AVR1,AVR
2の出力で付勢・されるとともに後述する制御回路で制
御されるモニタ90RM1j90RM2で駆動される電
圧整定用電動調整抵抗器で、これら抵抗器90R,,9
0R2・は1号および2号発電機G1. G2の電圧整
定を行なうようにしている。soR,;5oR2 are the voltage regulators AVR1, AVR
These resistors 90R,,9
0R2. is the No. 1 and No. 2 generator G1. The voltage of G2 is adjusted.
PMGl、PMG2は1号および2号水車W7..W/
、−に連結される永久磁石式交流発電機、65P1,6
5P2はカバナを介して上記発電機PMG1.PMG2
の出力で付勢されるとともに後述する制御回路で制御さ
れるモータ65PMI 、65PM2で駆動される電力
整定用電動調整抵抗器で、これら抵抗器65P1,65
P2は1号および2号発電機G1.G2の電力整定を行
なうようにしている。PMGl and PMG2 are No. 1 and No. 2 water turbines W7. .. W/
, - a permanent magnet alternator connected to, 65P1,6
5P2 is connected to the generator PMG1.5P2 via the cabana. PMG2
These resistors 65P1 and 65 are powered by the output of motors 65PMI and 65PM2, which are controlled by a control circuit described later.
P2 is the No. 1 and No. 2 generator G1. The power of G2 is set.
次に第3図は同系統における自動復旧装置の制御回路を
示している。Next, FIG. 3 shows the control circuit of the automatic recovery device in the same system.
即ち、図中P、、P2.P3.’Nは直流制御母線、1
8も”Xは自動復旧起動用リレーで、このリレー186
Xは一端を母線Nに接続するとともに他端をしゃ断器1
52のトリップ接点152bx系統A事故時閉成される
接点186Rおよび自動復旧装置使用時閉成されるスイ
ッチ43ARを介して母線P1に接続し、また上記接点
186Rに並列に自己接点186X1を接続して自己保
持可能にしている。That is, in the figure, P, , P2. P3. 'N is DC control bus, 1
8 "X" is the relay for automatic recovery activation, and this relay 186
One end of X is connected to bus bar N, and the other end is connected to breaker 1.
52 trip contacts 152bx are connected to the bus P1 via a contact 186R that is closed in the event of a system A accident and a switch 43AR that is closed when the automatic recovery device is in use, and a self-contact 186X1 is connected in parallel to the above contact 186R. It allows for self-preservation.
また上記リレー186Xの接点186X2を介して上記
母線P1.P2を接続し、上記電圧検出リレー184■
の接点184v1を介して上記母線P2.P3を接続す
る。Further, the bus line P1. Connect P2 and the voltage detection relay 184■
through the contact 184v1 of the bus P2. Connect P3.
−力、65P□は上述した1号発電機G1の電力整定用
電動調整抵抗器で、この中で65PM1はモータL1、
。- Power, 65P□ is the electric adjustment resistor for power setting of the No. 1 generator G1 mentioned above, and among these, 65PM1 is the motor L1,
.
L1□# I’ts e L14は抵抗器の位置スイッ
チを示し、このうちスイッチI’tt j L12は抵
抗の上限および下限で開かれ、またスイッチL131
L14は他号機とのバランス用で整定範囲内で開かれる
ものである。L1□# I'ts e L14 indicates the resistor position switches, among which switch I'tt j L12 is opened at the upper and lower limits of the resistance, and switch L131
L14 is for balance with other machines and is opened within the setting range.
そ゛してスイッチL11は一端をモータ55 PM、に
接続し他端を前述した自動揃速装置15における周波数
増信号で閉じる接点15R0を介して母線P3に、スイ
ッチL′1′2は一端をモータ60PM1に接続し、他
端を1号発電機d1用ガイドベン開度で高落差時の無負
荷開度以下で開かれる接点74m1および上記揃速装置
15における周波数域信号で閉じる接点15L、を介し
て母線P3に接続する。The switch L11 has one end connected to the motor 55 PM, and the other end connected to the bus P3 via the contact 15R0, which is closed by the frequency increase signal in the automatic speed adjusting device 15, and the switch L'1'2 has one end connected to the motor 55PM. 60PM1, and the other end is connected to the guide ben opening for No. 1 generator d1 through a contact 74m1 that opens when the opening is below the no-load opening at high head, and a contact 15L that closes in response to a frequency range signal in the speed equalizing device 15. and connect to bus P3.
またスイッチL13 e L14”一端を上記スイッチ
L1□。Also, one end of the switch L13 e L14'' is connected to the switch L1□.
L12の他端に各別に接続し、他端を共通接続して上記
電量検出リレ゛−18□4の接点184V2を介して母
線P2に接続fる。They are connected to the other ends of L12 separately, and the other ends are commonly connected and connected to the bus P2 via the contact 184V2 of the electric power detection relay 18□4.
”9QR1は上述した1号発電機G1の電圧膳・是用電
動調整抵抗暮で、この中でg’j−AM、は宅”−タミ
L2□、L2□t ”23 P L24は抵抗器め位櫃
スイッチを示し、このうちスイッチL2□、L2□は抵
抗の上限および下限で開かれ、またスイッチL23 ;
L’24 k22号機とのバランス用で整定範囲内で開
かれるものである。``9QR1 is the electric adjustment resistor for voltage adjustment and use of the above-mentioned No. 1 generator G1, and among these, g'j-AM is the resistance.''-Tami L2□, L2□t ``23 P L24 is the resistor. The switch L2□ and L2□ are opened at the upper and lower limits of the resistance, and the switch L23;
It is for balance with L'24 k22 and is opened within the settling range.
モして;スイッチL21は一端を宅二夕90 RM、に
接続し、他端を前述した自動電圧調整装置60tとおけ
る電圧端信号で閉じる接m60R,と後述する有極リレ
ーQX1の不動作時開かれバランス信号(→で閉じる接
点4x、−mHの血列回路、上記電圧調整装置60にお
ける電圧減信号時開く接点60L2および上記有極リレ
ーQX1の不動作時閉じバランス信号(ト)で開かれる
接点QX1□−L0を介して母線P3に、スイッチL2
゛2−は一端を毛−夕90 RMlに接続し、他端を上
記電圧調整装置60における電圧減信号で閉じる接点6
oL;”=上記有極リレー’QX1の不動作時開かれバ
ランス信号(ト)で開かれる接点QXニーL2の並列回
路、上記電圧調整装置60における電圧増信号で開く接
点60L!および上記有極リレーQXの不動作時閉じバ
ランス信号に)で開く接点QX□−R2を介して母線P
3に夫々接続する。The switch L21 has one end connected to the terminal 90 RM, and the other end closed by the voltage end signal of the automatic voltage regulator 60t mentioned above, when the polarized relay QX1 described later is not in operation. Contact 4x, which closes with a balance signal (→), -mH blood line circuit, contact 60L2 that opens when the voltage decrease signal in the voltage regulator 60, and close balance signal (g) when the polarized relay QX1 is inactive opens. Switch L2 is connected to bus P3 via contact QX1□-L0.
2- is a contact 6 whose one end is connected to the voltage regulator 90 RMl and whose other end is closed by the voltage reduction signal in the voltage regulator 60.
oL;”=parallel circuit of contact QX knee L2 which is opened when the polarized relay QX1 is inactive and opened by the balance signal (g), contact 60L which is opened by the voltage increase signal in the voltage regulator 60!, and the polarized relay Bus line P via contact QX□-R2, which opens when relay QX is inactive (to balance signal)
3 respectively.
またスイッチL23 t L24は一端を上記スイッチ
L2、。Further, the switches L23 and L24 have one end connected to the switch L2.
L2□の他端に各別に接続し、他端を共通接続して上記
電圧検出リレー184の接点184V3を介して母線P
2に接続する。Connect each end to the other end of L2□ separately, and connect the other ends in common to the bus P
Connect to 2.
更Iこ65P2,90R2は2号発電機G2の電力整定
用電動調整抵抗器および電圧整定用電動調整抵抗器を示
すが、これらは上述の各抵抗器65P0および90 R
1と同一回路に構成されるのでその説明を省略する。Furthermore, 65P2 and 90R2 indicate the electric adjustment resistor for power setting and the electric adjustment resistor for voltage setting of the No. 2 generator G2, which are similar to the above-mentioned resistors 65P0 and 90R.
Since it is configured in the same circuit as No. 1, its explanation will be omitted.
次に第4図はしゃ断器152の投入回路を示し、しゃ断
器152の投入コイルCCは上記自動同期装置25の同
期検出時閉じられる接点25−1、上記電圧検出リレー
184■の接点184’laおよび上記起動リレー18
6Xの接点186X、を介して直流母線P、N間に接続
する。Next, FIG. 4 shows the closing circuit of the breaker 152, and the closing coil CC of the breaker 152 is a contact 25-1 that is closed when synchronization is detected by the automatic synchronizer 25, and a contact 184'la of the voltage detection relay 184■. and the above starting relay 18
It is connected between the DC buses P and N via the 6X contact 186X.
次に第5図および第6図は上記有極リレーQXの制御回
路を示し、図中Q1.Q2.・・・・・・Qnは各号機
の無効型カドランジューサTD−VAR1゜TD−VA
R2,・・・・・・の出力、OA1#0A21・・・・
・・は−力入力端に上記出力が各別に与えられ、他力入
力端を共通接続するとともに両入力端間に抵抗値の等し
い抵抗R1# R2t・・・・・・を各別に接続した演
算増巾器、QX、 、 QX2・・・・・・は上記増巾
器oA11OA2・・・・・・の出力端に接続された有
極リレーである。Next, FIGS. 5 and 6 show control circuits of the polarized relay QX, and Q1. Q2. ...Qn is the invalid quadrangular juicer TD-VAR1゜TD-VA of each machine
Output of R2,..., OA1#0A21...
... is an operation in which the above outputs are given to each force input terminal separately, the other force input terminals are commonly connected, and resistors R1#R2t... with equal resistance values are connected separately between both input terminals. The amplifiers QX, QX2, . . . are polarized relays connected to the output terminals of the amplifiers oA11OA2, .
この場合抵抗R□、R2・・・・・・には各号機の無効
電力の平均値のずれに比例した信号が発生される。In this case, a signal proportional to the deviation in the average value of the reactive power of each machine is generated in the resistors R□, R2, . . . .
即ち、抵抗R,<chiQ、 −Ql +Q2””””
ngl:、倒した極性の信号が発生されこれを増巾器
OA1゜OA2.・・・・・・で増巾して有極リレーQ
X1.QX2・・・・・・に与え、所定の動作を得るよ
うにしている。That is, resistance R,<chiQ, -Ql +Q2""""
ngl: A signal with the reversed polarity is generated and is sent to the amplifiers OA1, OA2. Increase the width with ・・・・・・Polarized relay Q
X1. QX2... is applied to obtain a predetermined operation.
これを第7図で詳述すると、増巾器OA、、OA2゜・
・・・・・は入力インピーダンスを大きくえらぶことが
できるのでこれを無視すると出力Q1→抵抗R1→抵抗
R2→出力Q2の回路電流は著H4只となる。To explain this in detail in Fig. 7, the amplifiers OA, OA2゜.
... can select a large input impedance, so if this is ignored, the circuit current of output Q1 → resistor R1 → resistor R2 → output Q2 will be only H4.
(但し電流力向はQlの方向とした)従って、抵抗R4
両端の電圧は
となる。(However, the current force direction was set to the direction of Ql.) Therefore, the resistance R4
The voltage at both ends is.
この結果抵抗R0の両端には1号および2号発電機G□
、G2の無効電力平均値の差が検出されるので、この検
出信号の極性により有極リレーQX1に所定の動作を得
るようにしたものである。As a result, the No. 1 and No. 2 generators G□ are connected to both ends of the resistor R0.
, G2 is detected, and the polarity of this detection signal is used to cause the polarized relay QX1 to perform a predetermined operation.
次に以上のように構成した本発明の作用を述べると、ま
ず系統Aに事故が発生するとしゃ断器152は図示しな
い保護装置により自動トリップされる。Next, the operation of the present invention constructed as above will be described. First, when an accident occurs in the system A, the breaker 152 is automatically tripped by a protection device (not shown).
また第3図でスイッチ43ARが予め投入使用されてい
れば接点186Rの系統A事故条件での閉成により起動
リレー186Xは動作され接点186X1で自己保持さ
れる。Further, in FIG. 3, if the switch 43AR has been previously turned on and used, the starting relay 186X is activated by closing the contact 186R under the system A fault condition and is self-held at the contact 186X1.
すると接点186X2の閉成により制御電源母線P2に
電源電圧が印加され、また系統Aが無電圧になることで
電圧検出リレー184■が復帰するため接点184V2
〜184V、が閉成している。Then, the power supply voltage is applied to the control power bus P2 by closing the contact 186
~184V, is closed.
全系統事故前において、1号発電機G1および2号発電
機G2の電力整定用電動調整抵抗器65P1と65P2
、電圧整定用電動調整抵抗器90R1と90R2がそれ
ぞれ異なる整定位置で両発電機G、、G2を運転してい
たとすれば、両発電機G1.G2は系統事故により系統
Aから切離される(とにより負荷りの容量を超えた状態
でしかも両発電機Gl y 02間においてはアンバラ
ンスな状態で運転される。Before the whole system accident, the electric adjustment resistors 65P1 and 65P2 for power setting of No. 1 generator G1 and No. 2 generator G2
, if both generators G, , G2 are operated at different setting positions of the voltage setting electric regulating resistors 90R1 and 90R2, then both generators G1 . G2 is disconnected from system A due to a system accident (and is operated in a state where the load capacity is exceeded and in an unbalanced state between both generators Gly 02).
そこで、1号発IJG。の電力整定用電動調整抵抗器6
5P0においてはバランス用スイッチL13又はL84
、また2号発電機G2の電力整定用電動調整抵抗器65
P2においてはバランス用スイッチ”33又はL34を
それぞれ閉成して負荷りの容量に相当する大きさの電力
が得られるような整定値に調整される。Therefore, IJG from No. 1. Electric adjustment resistor 6 for power setting
For 5P0, balance switch L13 or L84
, and electric adjustment resistor 65 for power setting of No. 2 generator G2.
At P2, the balance switch "33" or "L34" is closed, respectively, and the set value is adjusted to obtain a power corresponding to the load capacity.
また1号発電機G8および2号発電機−G2の電圧調整
用電動調整抵抗器90R,,90R2についても系統切
離後においてそれぞれ異なる整定位置に整定されている
と系統Aの回復時に両発電機間のアンバランスによる制
御の時間遅れと横流が生ずるため、1号発電機Gの電圧
整定用電動調整抵抗器90R1においてはバランス用ス
イッチL23又はL24、また2号発電機G2の電圧整
定用電動調整抵抗器90R2においてはバランス用スイ
ッチL43又はL44をそれぞれ閉成してその整定値が
同一値になるように調整される。In addition, if the electric voltage adjustment resistors 90R and 90R2 of the No. 1 generator G8 and the No. 2 generator G2 are set to different setting positions after the system is disconnected, both generators will be activated when the system A is restored. Since a control time delay and a cross current occur due to the unbalance between the balance switch L23 or L24 in the voltage adjustment electric adjustment resistor 90R1 of the No. 1 generator G, and the voltage adjustment electric adjustment resistor 90R1 of the No. 2 generator G2. In the resistor 90R2, the balance switch L43 or L44 is closed, respectively, and the set values thereof are adjusted to be the same value.
従って1.1号および2号発電機G1およびG2はその
電力が負荷りの容量に見合った状態で、しかも両発電機
G1.G2とも略同−電圧が維持された状態で負荷りに
対して電力を供給することができる。Therefore, the power of No. 1.1 and No. 2 generators G1 and G2 is commensurate with the load capacity, and both generators G1. Electric power can be supplied to the load while maintaining substantially the same voltage as G2.
かような状態から系統Aの事故が回復すると電圧検出リ
レー184■が系統Aの電圧布を検出して動作される。When the fault in system A is recovered from such a state, voltage detection relay 1842 detects the voltage distribution in system A and is activated.
従って検出リレー184■の接点184V7,184V
9および上記起動リレー186Xの接点186X4,1
86X、の閉成により自動揃速装置15、自動電圧調整
装置60および自動同期装置25が母線Bおよび系統A
間に接続されると共に第3図においては接点184V1
が閉成し、また接点184V2〜184V、が開路する
。Therefore, the contact of detection relay 184■ 184V7, 184V
9 and the contacts 186X of the above starting relay 186X 4,1
86
contact 184V1 in FIG.
is closed, and contacts 184V2 to 184V are opened.
また上記起動リレー186Xの接点186X(i、18
6X7を介して無効型カドランジューサTD−VAR,
。Also, contact 186X (i, 18
Disabled quadrant TD-VAR via 6X7,
.
TD−VAR2が1号および会゛号発電機G1.G2の
出力端に接続される。TD-VAR2 is No. 1 and No. 2 generator G1. Connected to the output terminal of G2.
従って上記揃速装置15は母線Bの周波数が系統Aのそ
れに合うようtと周波数増又は波信号を発生し、その対
応接点15R0又は15L1を閉成することにより第3
図で1号発電機G1の電力整定用調整抵抗器65P1は
スイッチL1i e L12の範囲で自動調整され上記
発電機G1の周波数を系統Aのそれに合うものに整定す
る。Therefore, the speed equalizing device 15 generates a frequency increase signal or a wave signal t so that the frequency of the bus B matches that of the system A, and closes the corresponding contact 15R0 or 15L1.
In the figure, the power setting adjustment resistor 65P1 of the No. 1 generator G1 is automatically adjusted within the range of switches L1ie L12 to set the frequency of the generator G1 to match that of the system A.
−力、上記自動電圧調整装置も母線Bの電圧が系統Aの
それに合うように電圧増又は波信号を発生し、その対応
接点60R1又は60L1を閉成し、また必要に応じて
上記無効型カドランジューサT D −VAR,、T
D−VAR2の出力により第5図および第6図に述べた
1号および2号発電機G1.G2の無効電力Q、、Q2
め平均値差信号に応動される有極リレーQX1が接点Q
X1−R1又はQXl−R2を閉成することにより1号
発電機G0の電圧整定用調整抵抗器90R1はスイッチ
L2□。- the automatic voltage regulator also generates a voltage increase or wave signal so that the voltage of bus B matches that of system A, closes its corresponding contact 60R1 or 60L1, and also closes the above disabled quadrant as required. Juicer T D -VAR,, T
The output of D-VAR2 causes the No. 1 and No. 2 generators G1. Reactive power Q of G2, ,Q2
The polarized relay QX1, which responds to the average value difference signal,
By closing X1-R1 or QXl-R2, the voltage setting adjustment resistor 90R1 of the No. 1 generator G0 becomes the switch L2□.
L2□の範囲で自動調整され発電機G1の電圧を系統A
のそれに合うものに整定する。The voltage of generator G1 is automatically adjusted within the range of L2□ to system A.
Set it to match that of .
また、2号発電機用の電力整定用電動調整抵抗65P2
および電圧整定用電動調整器90R2も同様に自動調整
され2号発電機G2の周波数および電圧を系統Aの条件
を満足するものに設定する。In addition, electric adjustment resistor 65P2 for power setting for No. 2 generator
Similarly, the voltage setting electric regulator 90R2 is automatically adjusted to set the frequency and voltage of the No. 2 generator G2 to satisfy the conditions of the system A.
かようlこして発電機G1.G2の自動調整により母線
Bの周波数および電圧が系統Aのそれに合わせられ位相
同期がとれると自動同期装置25が動作される。The generator G1. When the frequency and voltage of bus B are matched to those of system A by automatic adjustment of G2 and phase synchronization is achieved, automatic synchronizer 25 is operated.
従って第4図において上記同期装置25の接点25−1
が閉成されるのをまって接点186X3,184V、を
通してしゃ断器152の投入jコイルCCが付勢される
のでしゃ断器152は投入され系統Aは母線Bに再び連
繋される。Therefore, in FIG. 4, the contact 25-1 of the synchronizer 25
Waiting for this to close, the closing coil CC of the breaker 152 is energized through the contacts 186X3 and 184V, so the breaker 152 is closed and the system A is connected to the bus B again.
またしゃ断器152の投入により起動リレー186Xが
復帰され自動揃速装置15、自動電圧調整装置60およ
び自動同期装置25は変成器PTL1.PTL2より切
り離され自動復旧が完了する。Further, by turning on the circuit breaker 152, the starting relay 186X is reset, and the automatic speed equalizing device 15, automatic voltage adjusting device 60, and automatic synchronizing device 25 are connected to the transformer PTL1. It is disconnected from PTL2 and automatic recovery is completed.
この場合、上記制御において上記自動揃速装置15が周
波数域信号で接点15L1,15L2を閉成し、電力整
定用調整抵抗器65P1,65P2を夫々下げ制御して
いる時、いま1号および2号発電機G1,02間にアン
バランスが生じ、例えば1号発電機G0の下げ制御が2
号発電機G2のそれよりも極端に先行すると両光電機G
l t G2に平均した負荷をかけた状態での運転がで
きなくなる。In this case, in the above control, when the automatic speed adjusting device 15 closes the contacts 15L1 and 15L2 using a frequency domain signal and lowers the power setting adjustment resistors 65P1 and 65P2, respectively, An unbalance occurs between generators G1 and 02, for example, the lowering control of the No. 1 generator G0 is
If it is extremely ahead of that of No. 1 generator G2, Ryokodenki G
l t It becomes impossible to operate with an average load applied to G2.
そこでこのような場合には接点74m1を開放して1号
発電機G1の下げ制御を制限し、両光電機G1゜02間
の電カニスイングを防止するようにしている。Therefore, in such a case, the contact point 74m1 is opened to limit the lowering control of the No. 1 generator G1 to prevent the electric crab swing between the two photoelectric machines G1.02.
また系統Aが回復した後の自動電圧調整装置60の制御
で電圧整定用調整抵抗器90 R,、90R2の整定値
のバランスがくずれると1号および2号発電機G1,0
2間の横流の原因により安定な電圧調整ができない。In addition, if the balance of the setting values of the voltage setting adjustment resistors 90R, 90R2 is lost under the control of the automatic voltage regulator 60 after the system A is restored, the No. 1 and No. 2 generators G1, 0
Stable voltage adjustment is not possible due to cross current between the two.
そこで、いま第3図において、第7図に示す調整装置6
0のタイムチャートを参照しt接点60R0の閉成によ
る上げ制御の場合を説明すると、上記接点60R0の閉
成で上記抵抗器90R1が上げ制御され、この時抵抗器
90R1が他の抵抗器90R2より先行されると第5図
および第6図で述べた1号および2号発電機G1.G2
毎の無効型カドランジューサT D −VARl、 T
D −VAR2より検出される無効電力Q2.Q2の
平均値差信号から抵抗n1間には正方向の出力が発生さ
れるので有極り□レーQX1の接点QX1−L1が開放
されるとともに接点QX、−L2が閉成される。Therefore, in FIG. 3, the adjusting device 6 shown in FIG.
To explain the case of raising control by closing the T contact 60R0 with reference to the time chart of No. If preceded, the No. 1 and No. 2 generators G1. G2
Disabled quadrangulator T D −VARl, T
Reactive power Q2 detected by D-VAR2. Since a positive output is generated between the resistor n1 from the average value difference signal of Q2, the contacts QX1-L1 of the polarized square relay QX1 are opened, and the contacts QX and -L2 are closed.
従って抵抗器90R1け上げ制御を接点QX−L1の開
放によりカットされ接点60R1の閉時間だけ接点QX
−L2を閉成して下げ制御され先行した分だけ戻される
。Therefore, the raise control of resistor 90R1 is cut off by opening contact QX-L1, and contact QX
- L2 is closed to control the lowering, and the amount that has gone ahead is returned.
この結果抵抗器90R1,90R2の整定値を常にバラ
ンスさせながら調整でき発電機G1,02間の横流を防
止して安定な電圧制御を可能にしでいる。As a result, the set values of the resistors 90R1 and 90R2 can be adjusted while always being balanced, thereby preventing cross current between the generators G1 and G02, thereby enabling stable voltage control.
。このように本発明によれば複数台の発電機の接続母線
に連繋される系統側に事故が発生した場合にも系統用し
ゃ断器のみしゃ断し上記母線から切り離すことなく接続
母線の無停電化を図ることができるので単独系統の負荷
を有するものおよび所内負荷を有するものに好都合であ
る。. As described above, according to the present invention, even if an accident occurs on the grid side connected to the connecting bus of multiple generators, only the grid breaker can be shut off and the connecting bus can be made uninterrupted without disconnecting from the bus. Therefore, it is convenient for those that have a load on a single system and those that have an in-house load.
また、自動復1田J系統側しゃ断器で同期並列を行なう
に際して、複数台の発電機の各電力整定用電動調整抵抗
器および電圧整定用電動調整抵抗器の各整定位置を予め
バランスさせておき、系統との同期検定時各発電機を同
時制御できるようにしたので、従来のように各発電機を
個別に系統と同期検定を行ないながら各発電機側のしゃ
断器を順次投入して自動復旧を図るようにしたものに比
べ系統事故回復後における各発電機の再投入時間を短縮
することができる。In addition, when performing synchronous paralleling with the circuit breaker on the automatic restoration J system side, the setting positions of the electric adjustment resistors for power setting and the electric adjustment resistors for voltage setting of multiple generators should be balanced in advance. , since each generator can be controlled simultaneously when verifying synchronization with the grid, automatic recovery can be achieved by sequentially turning on the circuit breaker on each generator side while performing synchronization verification of each generator with the grid individually as in the past. Compared to a system designed to achieve this, it is possible to shorten the time it takes to restart each generator after a grid failure has been recovered.
更に各発電機の電圧および周波数整定を自動電圧調整装
置および自動揃速装置で指令するとともに各発電機間の
無効型カバランス制御耘よび周波数減力向の制限制御を
加味して接続母線の電圧および周波数を系統のそれに同
期させ系統側しゃ断器を投入して自動復旧を図るように
したので、発電機間の横流および電力スイングを確実に
防止することができ安定した自動復旧を行なうことがで
きる。Furthermore, the voltage and frequency setting of each generator is commanded by an automatic voltage regulator and an automatic speed equalizer, and the voltage of the connected bus is adjusted by taking into account the invalid cover balance control between each generator and the limit control in the direction of frequency reduction. Since the frequency is synchronized with that of the grid and the breaker on the grid side is turned on for automatic recovery, cross current between generators and power swings can be reliably prevented and stable automatic recovery can be performed. .
第1図は従来の自動復旧装置を適用した系統図1、第2
図&さ本発明による自動復旧装置の一実施例を適用した
系統図、第3図乃至第6図は同復旧装置の制御回路を示
す回路図、第7図は同装置の動作説明図である。
A・・・・・・系統、B、C・・・・・・母線、G1.
G2・・・・・・発電機、T・・・・・・主変圧器、1
52.52−1.52−2・・・・・・しゃ断器、18
4V・・・・・・電圧検出リレー、15・・・・・・自
動揃速装置、60・・・・・・自動電圧調整装置、2.
5・・・・・中動同期装置、90 R1,90R2・・
・・・・電量整定用電動調整抵抗器、65P1.65P
2・・・・・・電力整定用電動調整抵抗器、TD−VA
Rl。Figure 1 shows system diagrams 1 and 2 that apply a conventional automatic recovery device.
Figure & Figure 6 is a system diagram to which an embodiment of the automatic recovery device according to the present invention is applied, Figures 3 to 6 are circuit diagrams showing the control circuit of the same recovery device, and Figure 7 is an explanatory diagram of the operation of the same device. . A...System, B, C...Bus, G1.
G2... Generator, T... Main transformer, 1
52.52-1.52-2... Breaker, 18
4V...Voltage detection relay, 15...Automatic speed equalizer, 60...Automatic voltage regulator, 2.
5...Medium motion synchronizer, 90 R1, 90R2...
...Electric adjustment resistor for setting the amount of electricity, 65P1.65P
2...Electric adjustment resistor for power setting, TD-VA
Rl.
Claims (1)
に連繋され上記系統の事故時上記しゃ断器により系統を
切り離すようにしたものにおいて、前記各発電機に電力
整定用電動抵抗器および電圧整定用電動抵抗器を備え且
つ前記系統の事故により前記各発電機が系統より切り離
されると前記各発電機の電力整定用電動抵抗器の各整定
位置を負荷容量に相当する電力量が得られるようにバラ
ンスさせると共に前記各発電機の電圧整定用電動抵抗器
の各整定位置を前記系統の回復時における各発電機間の
アンバランスによる制御の時間遅れ並びに横流が生じな
いようにバランスさせ、また前記系統の事故が回復する
と前記各発電機の電力整定用電動抵抗器の各整定位置を
各発電機の周波数が前記系統のそれに同期するように周
波数減力向の制限制御を加味して調整すると共に前記電
圧整定用電動抵抗器の各整定位置を各発電機の電圧が前
記系統のそれに同期するように無効電力バランス制御を
加味して調整する制御装置を設けて上記母線と系統の位
相が同期するのをまって上記しや断器を投入し上記各発
電機の自動復旧を図るようにしたことを特徴とする自動
復旧装置。1. In a system in which the connecting bus bars of multiple generators are connected to the grid via a breaker, and the grid is disconnected by the breaker in the event of an accident in the grid, each generator is equipped with an electric resistor for power adjustment and voltage. It is provided with a setting motorized resistor, and when each generator is disconnected from the grid due to an accident in the grid, each setting position of the power setting motorized resistor of each of the generators is set so that an amount of electric power corresponding to the load capacity can be obtained. In addition, each setting position of the voltage-setting motorized resistor of each of the generators is balanced so that there is no control time delay or cross current due to unbalance between the generators when the system is restored, and the When the fault in the grid is recovered, each setting position of the electric power setting electric resistor of each of the generators is adjusted so that the frequency of each generator is synchronized with that of the grid, taking into account limit control in the direction of frequency reduction. A control device is provided that adjusts each setting position of the voltage-setting motorized resistor so that the voltage of each generator is synchronized with that of the system, taking into account reactive power balance control, so that the phases of the bus and the system are synchronized. An automatic recovery device characterized in that the above-mentioned power cutter is turned on after waiting for automatic recovery of each of the above-mentioned generators.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP48017214A JPS5842694B2 (en) | 1973-02-12 | 1973-02-12 | Jidou Fukuki Yusouchi |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP48017214A JPS5842694B2 (en) | 1973-02-12 | 1973-02-12 | Jidou Fukuki Yusouchi |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS49105143A JPS49105143A (en) | 1974-10-04 |
JPS5842694B2 true JPS5842694B2 (en) | 1983-09-21 |
Family
ID=11937681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP48017214A Expired JPS5842694B2 (en) | 1973-02-12 | 1973-02-12 | Jidou Fukuki Yusouchi |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5842694B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10797488B2 (en) * | 2016-08-23 | 2020-10-06 | General Electric Company | Systems and methods for operatively coupling a micro-grid to a bulk grid |
-
1973
- 1973-02-12 JP JP48017214A patent/JPS5842694B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS49105143A (en) | 1974-10-04 |
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