JPH02111230A - Automatic synchronously closing system for many generators - Google Patents
Automatic synchronously closing system for many generatorsInfo
- Publication number
- JPH02111230A JPH02111230A JP26190088A JP26190088A JPH02111230A JP H02111230 A JPH02111230 A JP H02111230A JP 26190088 A JP26190088 A JP 26190088A JP 26190088 A JP26190088 A JP 26190088A JP H02111230 A JPH02111230 A JP H02111230A
- Authority
- JP
- Japan
- Prior art keywords
- group
- automatic
- automatic synchronization
- closing device
- generators
- 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.)
- Pending
Links
- 230000001360 synchronised effect Effects 0.000 claims abstract description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、多数発電機の自動同期投入システムに関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to an automatic synchronization system for multiple generators.
多数発電機を母線に接続する場合、各発電機を、順次、
自動同期投入していくのでは、相当の時間を必要とする
ので、発電機を群に分け、母線もそれに応じ分割して分
割した母線間にしゃ断器を介在させて早期に自動同期投
入を終わらせるシステムが提案されている。When connecting multiple generators to a bus, connect each generator in turn,
Automatic synchronous start-up requires a considerable amount of time, so it is possible to finish automatic synchronous start-up early by dividing the generators into groups, dividing the busbars accordingly, and interposing a breaker between the divided busbars. A system has been proposed.
第３図は、例えば、特開昭６２−２３３０２８号公報に
記載されたこの種の早期自動同期投入システムを適用し
た発電プラントの１例を示し、第４図は早期自動同期投
入システムを示している。Fig. 3 shows an example of a power generation plant to which this type of early automatic synchronous start-up system described in Japanese Patent Application Laid-open No. 62-233028 is applied, and Fig. 4 shows an early automatic synchronous start-up system. There is.
両図において、Ｇ１、Ｇ２は第１群の交流発電機、Ｇ３
、Ｇ４は第２群の交流発電機、ＣＢ１〜ＣＢ５はしゃ断
器、ＰＴＩ〜ＰＴ６は計器用変圧器、ＢＳＩ、ＢＳ２は
母線、Ｌｌ、Ｌ２は負荷、ＡＳＩは第１群の群専用の自
動同期投入装置、Ａｓ２は第２の群の群専用の自動同期
投入装置、Ａ３Ｂは母線間の群間自動同期投入装置であ
る。In both figures, G1 and G2 are the first group of AC generators, and G3 is the AC generator of the first group.
, G4 is the second group's alternating current generator, CB1 to CB5 are the circuit breakers, PTI to PT6 are the potential transformers, BSI and BS2 are the bus bars, Ll and L2 are the loads, and ASI is the automatic synchronization exclusive to the first group. The input device As2 is an automatic synchronization input device exclusively for the second group, and A3B is an inter-group automatic synchronization input device between the buses.
この構成においては、各交流発電機Ｇ１〜Ｇ４が起動、
して電圧が確立すると、例えば、しゃ断器ＣＢｌとＣ８
４が自動投入される。しゃ断器ＣＢ１が投入された後、
同期投入選択信号により接点Ｓ２１．Ｓ２ｏが選択され
ると、ＰＴ２により検出される交流発電ａＧ２の出力電
圧と、ＰＴ５により検出される母線ＢＳＩの母線電圧が
第１の群の自動同期投入装置ＡＳＩに入力される。自動
同期投入装置ＡＳＩは両電圧の電圧差、周波数差、位相
差が許容範囲内になるように、交流発電機Ｇ２を制御し
、許容範囲内になると、接点Ｓ２０を通してしゃ断器Ｃ
Ｂ２へ投入指令信号を送出する。同様に、しゃ断器ＣＢ
３が投入されたのら、同期投入選択信号により接点ｓ４
ｉ、Ｓ４゜が選択されると、ＰＴＡにより検出される交
流発電機Ｇ４の出力電圧と、ＰＴ６により検出される母
線Ｂｓ２の母線電圧が第１の群の自動同期投入装置ＡＳ
２に入力される。自動同期投入装置ＡＳ２は両電圧の電
圧差、周波数差、位相差が許容範囲内になるように、交
流発電機Ｇ４を制ｊ１「シ、許容範囲内になると、接点
Ｓ４ｏを通してしゃ断１ｃＢ４へ投入指令信号を送出す
る。母線ＢＳＩとＢＳ２を接続する場合は、同期投入選
択信号により接点ＳＳｔとＳＳｏが選択され、ＰＴ５に
より検出される母線電圧とＰ Ｔ ６により検出される
母線電圧とが自動同期投入装置Ａ、 Ｓ ３に入力され
、しゃ断器ＣＢ５が閉路されることになる。In this configuration, each alternator G1 to G4 starts,
Once the voltage is established, e.g., circuit breakers CBl and C8
4 is automatically inserted. After breaker CB1 is turned on,
Contact S21. is activated by the synchronization selection signal. When S2o is selected, the output voltage of the AC generator aG2 detected by PT2 and the bus voltage of the bus BSI detected by PT5 are input to the automatic synchronization device ASI of the first group. The automatic synchronization device ASI controls the alternator G2 so that the voltage difference, frequency difference, and phase difference between both voltages are within the permissible range, and when they are within the permissible range, the breaker C is connected through the contact S20.
Sends a closing command signal to B2. Similarly, breaker CB
3 is turned on, contact s4 is turned on by the synchronization selection signal.
i, S4° is selected, the output voltage of the alternator G4 detected by the PTA and the bus voltage of the bus Bs2 detected by the PT6 are connected to the automatic synchronization device AS of the first group.
2 is input. The automatic synchronization start device AS2 controls the alternator G4 so that the voltage difference, frequency difference, and phase difference between the two voltages are within the permissible range. When the voltage difference, frequency difference, and phase difference between the two voltages are within the permissible range, the automatic synchronization start device AS2 issues a power-on command to the breaker 1cB4 through the contact S4o. When connecting buses BSI and BS2, contacts SSt and SSo are selected by the synchronization selection signal, and the bus voltage detected by PT5 and the bus voltage detected by PT6 are automatically synchronized. The signal is input to devices A and S3, and circuit breaker CB5 is closed.
このように、従来の自動同期投入システムでは、発電機
の群の数だけの群間自動同期投入装置と、群の数より１
つ少ない数の群間自動同期投入装置を必要とするから、
自動同期投入装置の所要台数が多く費用がかるという問
題があった。In this way, in the conventional automatic synchronization start-up system, there are as many inter-group automatic synchronization start-up devices as there are generator groups, and one inter-group automatic synchronization start-up device than the number of groups.
Because it requires fewer automatic synchronization input devices between groups,
There was a problem in that the required number of automatic synchronization input devices was large and the cost was high.
この発明は上記問題を解消するためになされたもので、
自動同期投入装置の所要台数を従来に比し低減すること
ができる多数発電機の自動同期投入システムを従供する
ことを目的とする。This invention was made to solve the above problem.
An object of the present invention is to provide an automatic synchronization system for multiple generators that can reduce the number of automatic synchronization devices required compared to the conventional system.
この発明は上記目的を達成するため、群間自動同期投入
装置として、群専用の自動同期投入装置のいずれかを兼
用させるようにしたものである。In order to achieve the above-mentioned object, the present invention is such that one of the group-dedicated automatic synchronization entry devices can also be used as the inter-group automatic synchronization entry device.
この発明では、群専用の自動同期投入装置を、群間自動
同期投入装置として兼用させるから、従来、設けていた
群間自動同期投入装置が不要となる。In this invention, since the group-dedicated automatic synchronization entry device is also used as the inter-group automatic synchronization entry device, the conventional inter-group automatic synchronization entry device is not required.
以下、この発明の一実施例を図面を参照して説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図は前記第３図の発電プラントの自動開ＩＵ１投入
システムを示したもので、同期投入選択信号による閉路
する接点Ｓ Ｓ ｉとＳＳｏが自動同期投入装置ＡＳ２
の入力端と出力側に配設されている点において、第４図
のものと相違する。他野構成は第４図のものと同じであ
る。FIG. 1 shows the automatic opening IU1 input system of the power plant shown in FIG.
It differs from the one shown in FIG. 4 in that it is disposed on the input and output sides of. The other field configuration is the same as that in Figure 4.
この構成においては、同期投入選択信号により接点Ｓ
Ｓ ｉとＳＳｏが閉路すると、ＰＴ５により検出される
母線電圧とＰＴ６により検出される母線電圧とが自動同
期投入装置ＡＳ２に入力され、しゃ断器ＣＢＳが閉路さ
れることになる。この自動同期投入装置ＡＳ２は群専用
の自動同期役人装置であって、第２群において、例えば
交流発電機Ｇ３が自動投入されたのち、交流発電機Ｇ４
を同期投入する場合に使用されてしゃ断器ＣＢ４に投入
指令信号を送出する。In this configuration, the contact S
When S i and SSo are closed, the bus voltage detected by PT5 and the bus voltage detected by PT6 are input to the automatic synchronization device AS2, and the breaker CBS is closed. This automatic synchronization input device AS2 is an automatic synchronization official device exclusively for the group, and in the second group, for example, after the alternator G3 is automatically turned on, the alternator G4
It is used when synchronously closing the circuit breaker CB4 and sends a closing command signal to the circuit breaker CB4.
この実施例では、自動同期投入装置ＡＳ２を群間自動同
期投入装置に兼用しているが、第１群の自動同期投入装
置ＡＳＩを群間自動同期投入装置に兼用させるようにし
ても良い。In this embodiment, the automatic synchronization insertion device AS2 is also used as the inter-group automatic synchronization insertion device, but the first group automatic synchronization insertion device ASI may also be used as the inter-group automatic synchronization insertion device.
また、発電機の群が２以上の多数になる場合は、複数の
群専用の自動同期投入装置に兼用させるよ・うにすれば
よい。Furthermore, if there are two or more groups of generators, an automatic synchronization device dedicated to the plurality of groups may be used.
この発明は以上説明した通り、群専用の自動同期投入装
置を、群間自動同期投入装置として兼用させるから、従
来の設けていた群間自動同期投入装置が不要となり、そ
の分、費用が安価になる。As explained above, this invention uses a group-dedicated automatic synchronization device also as an inter-group automatic synchronization device, which eliminates the need for the conventional inter-group automatic synchronization device, which reduces costs. Become.
第１図はこの発明の実施例の自動同期投入装置の入出力
回路結線図、第２図は従来の自動同量投入システムを示
す系統図、第３図は上記従来例における自動同期投入装
置の入出力回路結線図である。
図において、０１〜Ｇ４−・−交流発電機、ＣＢＩ〜Ｃ
Ｂ ５−Ｌや断器、ＡＳＩ、ＡＳ２−群専用自動同期投
入装置、Ｓｌｉ〜Ｓ、。−同期投入選択用接点。
なお、図中、同一符号は同一または相当部分を示す。Fig. 1 is an input/output circuit connection diagram of an automatic synchronization injection device according to an embodiment of the present invention, Fig. 2 is a system diagram showing a conventional automatic equal amount injection system, and Fig. 3 is a diagram of the automatic synchronization injection device in the conventional example. FIG. 3 is an input/output circuit connection diagram. In the figure, 01~G4--AC generator, CBI~C
B5-L, disconnector, ASI, automatic synchronization device for AS2-group, Sli~S. -Synchronization selection contact. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
断器を介して接続される母線を各群毎に設けて母線間に
しゃ断器を介在させ、発電機は各群に専用の自動同期投
入装置を用いて対応する群の母線に接続し、母線相互は
群間自動同期投入装置を用いて接続する多数発電機の自
動同期投入装置において、上記群間自動同期投入装置と
して、群専用の自動同期投入装置のいずれかを兼用させ
ることを特徴とする多数発電機の自動同期投入システム
。A large number of generators are divided into multiple groups, and a bus bar to which the generators are connected via a breaker is provided for each group, a breaker is interposed between the bus bars, and the generators are automatically synchronously turned on exclusively for each group. In an automatic synchronization system for multiple generators, in which the buses of a corresponding group are connected to each other using a device, and the buses are connected to each other using an automatic inter-group synchronization system, the group-specific automatic synchronization system is An automatic synchronous start-up system for multiple generators, characterized in that one of the synchronous start-up devices is also used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26190088A JPH02111230A (en) | 1988-10-17 | 1988-10-17 | Automatic synchronously closing system for many generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26190088A JPH02111230A (en) | 1988-10-17 | 1988-10-17 | Automatic synchronously closing system for many generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02111230A true JPH02111230A (en) | 1990-04-24 |
Family
ID=17368316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26190088A Pending JPH02111230A (en) | 1988-10-17 | 1988-10-17 | Automatic synchronously closing system for many generators |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02111230A (en) |
-
1988
- 1988-10-17 JP JP26190088A patent/JPH02111230A/en active Pending
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