JPH0951696A - Starting device for gas turbine - Google Patents

Starting device for gas turbine

Info

Publication number
JPH0951696A
JPH0951696A JP7202267A JP20226795A JPH0951696A JP H0951696 A JPH0951696 A JP H0951696A JP 7202267 A JP7202267 A JP 7202267A JP 20226795 A JP20226795 A JP 20226795A JP H0951696 A JPH0951696 A JP H0951696A
Authority
JP
Japan
Prior art keywords
starter
generator
switch
gas turbine
winding
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
Application number
JP7202267A
Other languages
Japanese (ja)
Inventor
Masayuki Yamakawa
政幸 山川
Yasuhiro Miyamoto
康弘 宮本
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.)
Toshiba Engineering Corp
Toshiba Corp
Original Assignee
Toshiba Engineering Corp
Toshiba 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 Toshiba Engineering Corp, Toshiba Corp filed Critical Toshiba Engineering Corp
Priority to JP7202267A priority Critical patent/JPH0951696A/en
Publication of JPH0951696A publication Critical patent/JPH0951696A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To obtain a starting device for gas turbine for reducing the scale of a facility with less operating efficiency, reducing cost, and simplifying layout by saving space. SOLUTION: In a device for starting gas turbine as a starting motor by giving a variable frequency power supply to a generator 10, a generator breaker or an excitation transformer being provided by branching a main circuit from an area between the main transformer low-voltage coil winding of a gas turbine generation facility with a load switcher and the load switcher is used as a three-coil-winding transformer with a tap switcher on loading, one of two coil windings is used as an excitation transformer, and the remaining one is used as the input transformer of a stationary type starting device.

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】本発明はガスタービン発電設
備、またはガスタービンと蒸気タービンを組み合わせた
コンバインドサイクル発電設備の起動に用いるガスター
ビン用起動装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas turbine starter for use in starting a gas turbine power generation facility or a combined cycle power generation facility in which a gas turbine and a steam turbine are combined.

【0002】[0002]

【従来の技術】この種従来のガスタービン用起動装置の
一例として図6のように、主変しゃ断器1、主変圧器
2、励磁変圧器4A、電動開閉器5、サイリスタ整流器
6、界磁しゃ断器7、静止形起動装置8、電動断路器
9、発電機(G)10、界磁巻線11、電動断路器1
2、母線13aとしゃ断器13b,13cを有する起動
装置用所内配開装置(所内電源装置)13、始動用励磁
変圧器14、入力変圧器15から構成されている。
2. Description of the Related Art As an example of this kind of conventional starter for a gas turbine, as shown in FIG. 6, a main breaker 1, a main transformer 2, an excitation transformer 4A, an electric switch 5, a thyristor rectifier 6, a field transformer. Circuit breaker 7, static starter 8, electric disconnector 9, generator (G) 10, field winding 11, electric disconnector 1
2, a starter distribution / distribution device (in-house power supply device) 13 having a bus bar 13a and circuit breakers 13b and 13c, a starting excitation transformer 14, and an input transformer 15.

【0003】プラント起動時に発電機10を可変速電動
機として使用するため、ガスタービン用起動装置では、
起動装置用所内配開装置13からの交流電圧を入力用変
圧器15により所定電圧に変成して可変周波数電源を構
成する静止形起動装置8に電源が供給される。
Since the generator 10 is used as a variable speed electric motor when the plant is started up,
The AC voltage from the starter distribution device 13 is transformed into a predetermined voltage by the input transformer 15 to supply power to the static starter 8 which constitutes a variable frequency power supply.

【0004】静止形起動装置8より発生した交流電力が
電動断路器9を通して発電機10に供給される。発電機
10はターニング速度(数回転)からガスタービン自立
速度(定格速度の80〜90%)まで同期電動機として
回転上昇される。
AC power generated by the stationary starter 8 is supplied to the generator 10 through the electric disconnector 9. The generator 10 is rotated and raised as a synchronous motor from a turning speed (several rotations) to a gas turbine self-sustaining speed (80 to 90% of the rated speed).

【0005】また、同期電動機として使用するために必
要な界磁電流は、所内配開装置13からの交流電力は、
始動用(起動用)励磁変圧器14、手動開閉器(A)5
を通じてサイリスタ整流器6で直流に変換され、発電機
10の界磁巻線11に供給される。
The field current required for use as the synchronous motor is the AC power from the on-site distribution device 13.
Excitation transformer 14 for starting (starting), manual switch (A) 5
Is converted into direct current by the thyristor rectifier 6 and is supplied to the field winding 11 of the generator 10.

【0006】[0006]

【発明が解決しようとする課題】以上述べた従来のガス
タービン用起動装置においては、以下の問題点がある。 (1)所内配開装置13、入力変圧器15、静止形起動
装置8、始動用励磁変圧器14、手動断路器(A)5に
より構成されるガスタービン用起動装置は、構成が複雑
である。
The conventional gas turbine starter described above has the following problems. (1) The configuration of the gas turbine starter including the on-site distribution device 13, the input transformer 15, the static starter 8, the starting excitation transformer 14, and the manual disconnector (A) 5 is complicated. .

【0007】(2)(1)のシステムはプラント起動時
のみ使用で稼動率が低い割に設備が大型で設置スペース
が大きく、かつ設備費等が高い。 (3)(1)に示す全ての機器接続するためのケーブル
やバスダクトの現地工事が大変である。
(2) The system of (1) is used only when the plant is started up, but the operating rate is low, but the equipment is large, the installation space is large, and the equipment cost is high. (3) Onsite construction of cables and bus ducts for connecting all the equipment shown in (1) is difficult.

【0008】(4)ガスタービン起動時には、静止形起
動装置8はしゃ断器13b,13cが閉じていて母線1
3aに接続されているため、静止形起動装置8から所内
系統へ高調波が流出することがあり、この高調波によっ
て所内機器に悪影響が生ずる。
(4) At the time of starting the gas turbine, the static starter 8 has the circuit breakers 13b and 13c closed and the bus bar 1
Since it is connected to 3a, harmonics may flow out from the stationary starter 8 to the in-house system, and the harmonics adversely affect the in-house equipment.

【0009】このため本発明では、稼動率の少ない設備
を小規模にし、コスト低減、ならびに省スペースによる
レイアウトの簡素化が図れ、また所内系統への高調波流
出がなくなり、高調波による所内機器への悪影響を取り
除くことができるガスタービン用起動装置を提供するこ
とを目的とする。
Therefore, according to the present invention, equipment having a low operating rate can be downsized, cost can be reduced, layout can be simplified by saving space, and harmonic outflow to the in-house system can be eliminated, so that in-house equipment due to harmonics can be used. An object of the present invention is to provide a starter for a gas turbine that can eliminate the adverse effects of the above.

【0010】[0010]

【課題を解決するための手段】前記目的を達成するた
め、請求項1に対応する発明は、電力系統の電圧を降圧
する主変圧器およびガスタービンの起動時開放する発電
機しゃ断器または負荷開閉器ならびに発電機を有するガ
スタービン発電設備と、前記主変圧器の低圧巻線と前記
発電機しゃ断器または負荷開閉器の間より主回路を分岐
して一次巻線が接続され、二次巻線を2つ有する負荷時
タップ切換器付三巻線変圧器と、この負荷時タップ切換
器付三巻線変圧器の二次巻線の1つを励磁巻線用とし、
この出力電力を整流して前記発電機の界磁巻線に直流を
供給する整流器と、この整流器と前記界磁巻線の間に接
続され、前記ガスタービン発電設備の起動完了後閉路す
る界磁開閉器と、前記負荷時タップ切換器付三巻線変圧
器の二次巻線の他の1つを起動装置用とし、前記発電機
と前記発電機しゃ断器または負荷開閉器の間に断路器を
介して接続され、前記電力系統からの電力を可変周波数
電力に変換し前記発電機に供給する静止形起動装置と、
この静止形起動装置と前記三巻線変圧器の起動装置用の
二次巻線の間に接続され、前記ガスタービン発電設備の
起動時閉路し、起動完了後開路する開閉器と、を具備し
たガスタービン用起動装置である。
In order to achieve the above object, the invention according to claim 1 relates to a main transformer for stepping down the voltage of a power system and a generator breaker or a load switch for opening when starting a gas turbine. Gas turbine power generation equipment having a power generator and a generator, a primary winding is connected by branching a main circuit between the low-voltage winding of the main transformer and the generator breaker or load switch, and a secondary winding is connected. A three-winding transformer with a tap changer with load and two secondary windings of the three-winding transformer with a tap changer under load are used for exciting windings.
A rectifier that rectifies this output power and supplies direct current to the field winding of the generator, and a field magnet that is connected between the rectifier and the field winding and that is closed after the start of the gas turbine power generation equipment is completed. A switch and another one of the secondary windings of the three-winding transformer with a tap changer during load are used as a starting device, and a disconnector is provided between the generator and the generator breaker or the load switch. A static starter that is connected via, and converts the electric power from the electric power system to variable frequency electric power and supplies the electric power to the generator.
A switch that is connected between the static starter and the secondary winding for the starter of the three-winding transformer, is closed when the gas turbine power generation facility is started, and is opened after the start is completed. It is a starter for a gas turbine.

【0011】請求項1に対応する発明によれば、発電機
の励磁用変圧器として負荷時タップ切換器付三巻線変圧
器を設置し、二次巻線をそれぞれ励磁巻線用と、起動装
置用とすることにより、励磁電圧の異なる始動用励磁変
圧器を削除でき、かつ3巻線とすることで静止形起動装
置の入力変圧器の単独設置が不要となり、ガスタービン
用起動装置を簡素化できる。
According to the invention corresponding to claim 1, a three-winding transformer with a load tap changer is installed as a transformer for exciting the generator, and the secondary windings are for exciting winding and for starting, respectively. By using the device, it is possible to eliminate the starting exciting transformers with different exciting voltages, and by using three windings, it is not necessary to install the input transformer of the static starting device separately, and the starting device for the gas turbine can be simplified. Can be converted.

【0012】前記目的を達成するため、請求項2に対応
する発明は、前記負荷時タップ切換器付三巻線励磁変圧
器、静止形起動装置、前記整流器、前記界磁開閉器、前
記開閉器、前記断路器を含め同一容器内に収納した請求
項1記載のガスタービン用起動装置である。
In order to achieve the above object, the invention according to claim 2 provides the three-winding excitation transformer with the load tap changer, the static starter, the rectifier, the field switch, and the switch. The gas turbine starter according to claim 1, wherein the disconnector and the disconnector are housed in the same container.

【0013】請求項2に対応する発明によれば、請求項
1の作用に加えて、屋外設置も可能になり、現地据付工
程の短縮化が可能になる。前記目的を達成するため、請
求項3に対応する発明は、タービン発電機の起動時、発
電所非常用所内配開装置から切り離される起動装置用所
内配開装置に非常用発電機開閉器を介して非常用発電機
を接続し、前記起動装置用所内配開装置に前記非常用発
電機の電力を可変周波数電力に変換する静止形起動装置
を接続し、この静止形起動装置に開閉器を介してタービ
ン発電機を接続し、このタービン発電機の起動時前記非
常用発電機により得られる電力を、前記非常用発電機開
閉器、開閉器を閉路した状態で前記静止形起動装置に供
給し、ここで得られる可変周波数電力により前記タービ
ン発電機を起動するようにしたガスタービン用起動装置
である。
According to the invention corresponding to claim 2, in addition to the effect of claim 1, it is possible to install outdoors and shorten the on-site installation process. In order to achieve the above-mentioned object, the invention according to claim 3 relates to a starter internal distribution device which is separated from a power plant emergency internal distribution device when a turbine generator is started, through an emergency generator switch. An emergency generator is connected, and a static starter that converts the power of the emergency generator into variable frequency power is connected to the starter device internal distribution device, and a switch is connected to this static starter. A turbine generator is connected, and when the turbine generator is started, the electric power obtained by the emergency generator is supplied to the static starter in a state where the emergency generator switch and the switch are closed. It is a gas turbine starting device for starting the turbine generator with the variable frequency electric power obtained here.

【0014】請求項3に対応する発明によれば、静止形
起動装置への入力電源を各プラントに必ず設置される非
常用発電機から供給することとし、起動装置運転中は非
常用所内配開装置からは切り離すようにしたので、所内
系統への高調波の流出がなくなり、高調波による所内機
器への悪影響を取り除くことができる。
According to the third aspect of the invention, the input power to the static starter is supplied from the emergency generator that is always installed in each plant, and the emergency starter is distributed during the starter operation. Since it is separated from the device, harmonics do not flow out to the in-house system, and the adverse effects of harmonics on in-house equipment can be eliminated.

【0015】前記目的を達成するため、請求項4に対応
する発明は、発電所非常用所内配開装置から切り離され
た起動装置用所内配開装置に、静止形起動装置用発電機
を接続し、前記起動装置用所内配開装置に静止形起動装
置用開閉器を介して可変周波数電力に変換する静止形起
動装置を接続し、この静止形起動装置に開閉器を介して
タービン発電機を接続し、このタービン発電機の起動時
前記静止形起動装置用発電機により得られる電力を、前
記静止形起動装置用開閉器、開閉器を閉路した状態で前
記静止形起動装置に供給し、ここで得られる可変周波数
電力により前記タービン発電機を起動するようにしたガ
スタービン用起動装置である。請求項4に対応する発明
によれば、静止形起動装置用発電機を設置することによ
り、系統への高調波流出を防止することができ、入力変
圧器が不要になる。
In order to achieve the above object, the invention according to claim 4 is to connect a generator for a stationary starter to a starter distribution device for a starter, which is separated from a power station emergency distribution device. , A stationary starter for converting variable frequency power to a variable starter through a switch for a static starter is connected to the starter distribution device, and a turbine generator is connected to the static starter through a switch. Then, when starting the turbine generator, the electric power obtained by the generator for the static starter is supplied to the static starter with the switch for the static starter and the switch closed. It is a starting device for a gas turbine that starts the turbine generator with the obtained variable frequency power. According to the invention corresponding to claim 4, by installing the generator for the static starter, it is possible to prevent harmonics from flowing out to the system, and the input transformer becomes unnecessary.

【0016】[0016]

【発明の実施の形態】BEST MODE FOR CARRYING OUT THE INVENTION

<第1の実施の形態> (構成)図1に示すように、主変しゃ断器1、主変圧器
2、負荷開閉器3、負荷時タップ切換器付三巻線変圧器
4、電動開閉器(A)5、サイリスタ整流器6、界磁し
ゃ断器7、静止形起動装置8、電動断路器9、発電機
(G)10、界磁巻線11から構成されている。
<First Embodiment> (Structure) As shown in FIG. 1, a main breaker 1, a main transformer 2, a load switch 3, a three-winding transformer 4 with a tap changer during load, an electric switch. (A) 5, a thyristor rectifier 6, a field breaker 7, a static starter 8, an electric disconnector 9, a generator (G) 10, and a field winding 11.

【0017】励磁変圧器4としては、負荷時タップ切換
器付三巻線変圧器を使用し、この二次巻線のうちの一つ
を励磁巻線用とし、サイリスタ整流器6、界磁しゃ断器
7を介して界磁巻線11に接続し、二次巻線のうちの残
り一つを起動装置用とし、手動開閉器5を介して順変換
器と逆変換器を有する静止形起動装置8に接続し、静止
形起動装置8の出力側を電動断路器9を介して発電機1
0と負荷開閉器3の接続点に接続し、負荷開閉器3の他
端を主変圧器2、主変しゃ断器1を介して交流系統母線
30に接続してある。
As the exciting transformer 4, a three-winding transformer with a load tap changer is used, and one of the secondary windings is used as an exciting winding. The thyristor rectifier 6 and the field breaker are used. Static starter 8 connected to the field winding 11 via 7 and using the other one of the secondary windings for the starter and having a forward converter and an inverse converter via the manual switch 5. And the output side of the stationary starter 8 via the electric disconnector 9
0 and the load switch 3 are connected to each other, and the other end of the load switch 3 is connected to the AC system bus 30 via the main transformer 2 and the main breaker 1.

【0018】負荷時タップ切換器は、ガスタービン起動
時にはタップを始動用位置にし、またガスタービン起動
完了時にはタップを通常運転位置にセットすることによ
り、該当する電圧となるように構成されている。
The on-load tap changer is constructed so that when the gas turbine is started, the tap is set to the starting position, and when the gas turbine is completely started, the tap is set to the normal operation position so that the voltage becomes a corresponding voltage.

【0019】(作用)以上のように構成された第1の実
施の形態の作用効果について説明する。すなわち、ガス
タービン用起動時は負荷開閉器3を開放して主変しゃ断
器1、主変圧器2、励磁変圧器4、電動開閉器5、静止
形起動装置8、電動断路器9を介し、発電機10に電源
を供給する。
(Operation) The operation and effect of the first embodiment configured as above will be described. That is, at the time of starting for the gas turbine, the load switch 3 is opened and the main transformer 1, main transformer 2, exciting transformer 4, electric switch 5, stationary starter 8, and electric disconnector 9 are connected, Power is supplied to the generator 10.

【0020】この場合、励磁変圧器4の界磁巻線11の
タップを始動用位置としサイリスタ整流器6、界磁しゃ
断器7を介して発電機10の界磁巻線11を励磁するこ
とにより発電機10を同期電動機として加速する。
In this case, power is generated by exciting the field winding 11 of the generator 10 through the thyristor rectifier 6 and the field breaker 7 with the tap of the field winding 11 of the excitation transformer 4 as the starting position. Machine 10 is accelerated as a synchronous motor.

【0021】そして、ガスタービン起動完了後は、静止
形起動装置8を停止させ電動開閉器5を開放、電動断路
器9を開放、サイリスタ整流器6を停止し、励磁変圧器
4の界磁回路巻線のタップを通常運転電圧位置としサイ
リスタ整流器6を再点弧することにより、発電機10は
通常の同期発電機として運転に入ることになる。
After the start of the gas turbine, the stationary starter 8 is stopped, the electric switch 5 is opened, the electric disconnector 9 is opened, the thyristor rectifier 6 is stopped, and the field circuit winding of the exciting transformer 4 is turned on. By re-igniting the thyristor rectifier 6 with the line taps in the normal operating voltage position, the generator 10 is put into operation as a normal synchronous generator.

【0022】(効果)第1の実施の形態により、従来必
要としていた静止形起動装置用所内配開装置13、入力
変圧器15、起動用(始動用)励磁変圧器14、電動開
閉器(B)12と各機器間の接続ケーブルまたは密閉母
線が削除できるため、レイアウトが簡素化でき、システ
ム全体の設備費低減も可能とできる。
(Effects) According to the first embodiment, a stationary starter internal distribution device 13, an input transformer 15, a starting (starting) exciting transformer 14, an electric switch (B) which are conventionally required. ) Since the connection cable or the closed bus bar between 12 and each device can be deleted, the layout can be simplified and the facility cost of the entire system can be reduced.

【0023】<第2の実施の形態>図2に示すように、
同一容器16a内に図1に示す負荷時タップ切換器付三
巻線変圧器4、サイリスタ整流器6、界磁しゃ断器7、
電動開閉器12を収納すると共に、容器16aに主回路
母線接続座17、励磁バスダクト座18、ケーブル接続
座19を取り付け、パッケージ形起動装置16を構成し
たものである。
<Second Embodiment> As shown in FIG.
In the same container 16a, a three-winding transformer with a tap changer at load 4 shown in FIG. 1, a thyristor rectifier 6, a field breaker 7,
The package type starting device 16 is configured by accommodating the electric switch 12 and attaching the main circuit bus bar connecting seat 17, the exciting bus duct seat 18, and the cable connecting seat 19 to the container 16a.

【0024】このようにパッケージ形起動装置16を構
成することにより、省スペース化が図れるので、建屋ス
ペースの狭い複合発電プラントには最適である。複合発
電プラントの場合、建屋スペースが狭いため主母線引廻
しも大変である。さらに、パッケージ形起動装置16
は、図3に示すように屋外設置も可能となり現地据付工
程の短縮化も図れる。
By constructing the package-type starter 16 in this manner, space can be saved, which is optimal for a combined power plant having a small building space. In the case of a combined cycle power plant, it is difficult to route the main busbar because the building space is small. Further, the package type activation device 16
As shown in Fig. 3, it can be installed outdoors and the on-site installation process can be shortened.

【0025】図3において、屋内に設置される発電機1
0はタービン発電機基礎台21の上に載置固定され、発
電機10には負荷開閉器3、主回路母線20を介して屋
外側に設置されている主変圧器2に電気的に接続されて
いる。主回路母線20の屋外側に分岐するようにパッケ
ージ形起動装置16を介して所内変圧器22が接続され
ている。
In FIG. 3, a generator 1 installed indoors
0 is mounted and fixed on the turbine generator base 21, and is electrically connected to the generator 10 via the load switch 3 and the main circuit bus 20 to the main transformer 2 installed on the outdoor side. ing. An on-site transformer 22 is connected via a package type starting device 16 so as to branch to the outdoor side of the main circuit bus 20.

【0026】<第3の実施の形態> (構成)図4に示すように、起動装置用所内配開装置連
絡用しゃ断器26を有する発電所非常用所内配開装置2
3から切り離された非常用発電機しゃ断器27を有する
起動装置用所内配開装置13に、図示しない始動用励磁
変圧器(始動用ExTr)を接続する。この起動装置用
所内配開装置13は非常用所内配開装置23と連絡し、
非常用発電機(D/G)25から図1に示すようなガス
タービン起動装置に電源が供給されるようになってい
る。また、所内配開装置13に図1と同様な構成の静止
形起動装置(LCI)8と、電動断路器9を介して複数
(ここでは3個)の発電機(G1,G2,G3)10を
起動できるようになっている。
<Third Embodiment> (Structure) As shown in FIG. 4, a power station emergency station distribution apparatus 2 having a starter station station distribution apparatus communication breaker 26.
A starting excitation transformer (starting ExTr) (not shown) is connected to the starting device internal distribution device 13 having the emergency generator breaker 27 separated from 3. This activation device distribution device 13 communicates with the emergency distribution device 23,
Power is supplied from the emergency generator (D / G) 25 to a gas turbine starter as shown in FIG. In addition, a stationary starter (LCI) 8 having the same configuration as that of FIG. Can be started.

【0027】(作用)ガスタービン起動時は非常用所内
配開装置連絡用しゃ断器26を開放し、非常用発電機2
5を起動する。非常用発電機25の電圧確立後非常用発
電機用しゃ断器27を投入し、起動装置用所内配開装置
13を介し静止形起動装置8へ電源を供給し発電機10
を起動させる。
(Operation) When the gas turbine is started, the circuit breaker 26 for connecting and disconnecting the emergency station distribution device is opened, and the emergency generator 2 is opened.
5 is started. After the voltage of the emergency generator 25 is established, the emergency generator breaker 27 is turned on to supply power to the stationary starter 8 via the starter distribution device 13 for the starter.
Start.

【0028】ガスタービン起動完了後は静止形起動装置
8を停止し、電動断路器9を開放する。その後非常用発
電機用しゃ断器27を開放し、非常用発電機25を停止
させる。
After the start of the gas turbine is completed, the stationary starter 8 is stopped and the electric disconnector 9 is opened. After that, the breaker 27 for the emergency generator is opened and the emergency generator 25 is stopped.

【0029】(効果)第3の実施の形態によれば、ガス
タービン起動時は静止形起動装置8の電源が系統側と切
り離されるため、発電所から系統側へ高調波が流出して
しまうことが無く質の高い電源を供給することができ
る。
(Effect) According to the third embodiment, since the power source of the stationary starter 8 is disconnected from the grid side when the gas turbine is started, harmonics flow out from the power plant to the grid side. It is possible to supply a high-quality power source.

【0030】また、静止形起動装置8の出力端を電動断
路器9の投入により他の発電機用主回路母線に接続する
ことにより、ガスタービン用起動装置から他のガスター
ビン発電機も起動させることが可能となる。
Further, by connecting the output end of the stationary starter 8 to the main circuit bus for another generator by turning on the electric disconnector 9, the starter for gas turbine also starts another gas turbine generator. It becomes possible.

【0031】但し、軸起動中に他軸で非常用電源が必要
な時は、軸起動を中止し、所内系統を救援する。 <第4の実施の形態> (構成)図5に示すように、起動装置用しゃ断器29、
始動用励磁変圧器しゃ断器30、ユニット連絡用しゃ断
器31を有する起動装置用所内配開装置13に、静止形
起動装置用発電機(DG)28を接続する。起動装置用
所内配開装置13の始動用励磁変圧器しゃ断器30に、
図示しない始動用励磁変圧器(始動用ExTr)を接続
し、起動装置用しゃ断器29に図1と同様な構成の静止
形起動装置8を接続する。静止形起動装置8には、複数
(ここでは3個)の電動断路器9をそれぞれ介してガス
タービン発電機10を起動できるように構成する。さら
に起動装置用所内配開装置13のユニット連絡用しゃ断
器31は、所内配開装置連絡用しゃ断器33を有するユ
ニット用所内配開装置32と連絡する。
However, when an emergency power supply is required for another axis during axis startup, axis startup is stopped and the in-house system is rescued. <Fourth Embodiment> (Structure) As shown in FIG.
A stationary starter generator (DG) 28 is connected to the starter distribution device 13 having a starter excitation transformer breaker 30 and a unit connection breaker 31. In the starting excitation transformer breaker 30 of the starter distribution device 13,
An unillustrated starting excitation transformer (ExTr for starting) is connected, and the breaker 29 for starting device is connected to the static starting device 8 having the same configuration as in FIG. The static starter 8 is configured to be able to start the gas turbine generator 10 via a plurality of (here, three) electric disconnectors 9. Further, the unit communication breaker 31 of the activation device distribution device 13 communicates with the unit distribution device 32 having the distribution device communication breaker 33.

【0032】(作用)以上のように構成された第4の実
施の形態において、ガスタービン発電機10を起動する
には、ユニット連絡用しゃ断器31を切とし、起動装置
用発電機28を起動する。その後、始動用励磁変圧器し
ゃ断器30、起動装置用しゃ断器29、電動断路器9を
投入し、ガスタービン発電機10を起動する。
(Operation) In the fourth embodiment configured as described above, in order to start the gas turbine generator 10, the unit connecting breaker 31 is turned off and the starter generator 28 is started. To do. After that, the starting excitation transformer breaker 30, the starting device breaker 29, and the electric disconnector 9 are turned on to start the gas turbine generator 10.

【0033】ガスタービン発電機10の起動完了後は静
止形起動装置8を停止し、電動断路器9、静止形起動装
置用しゃ断器29、始動用励磁変圧器しゃ断器30を開
放する。その後ユニット連絡用しゃ断器31を投入し、
静止形起動装置用発電機28からユニット用所内配開装
置32へ電源を供給し、ガスタービン発電機10の所内
負担率を低減させる。
After the start-up of the gas turbine generator 10, the static starter 8 is stopped, and the electric disconnector 9, the static starter breaker 29, and the starting excitation transformer breaker 30 are opened. After that, turn on the breaker 31 for unit communication,
Power is supplied from the stationary starter power generator 28 to the unit internal distribution device 32 to reduce the internal duty ratio of the gas turbine generator 10.

【0034】(効果)第4の実施の形態によれば、停電
時(ブラックアウト)スタートが可能となるとともにガ
スタービン起動時には静止形起動装置8と系統が切り離
されるため、高調波の流出を防ぐことができる。また、
ガスタービン発電機10の起動終了後は静止形起動装置
用発電機28からユニット用所内配開装置32へ電源を
供給するため、ガスタービン発電機10の所内負担率を
低減することができる。
(Effect) According to the fourth embodiment, it is possible to start at the time of blackout (blackout), and the system is disconnected from the static starter 8 when the gas turbine is started, so that the outflow of harmonics is prevented. be able to. Also,
After the start-up of the gas turbine generator 10, power is supplied from the stationary starter generator 28 to the unit internal distribution device 32, so that the internal burden ratio of the gas turbine generator 10 can be reduced.

【0035】<変形例>本発明は、以上述べた実施の形
態に限定されず、以下のように変形してもよい。例えば
図1の負荷開閉器3の代りに起動装置の起動時に開放す
る発電機しゃ断器としたり、サイリタ整流器6をダイオ
ード整流器にしてもよく、電動断路器9を手動断路器の
ごとき開閉器としたり、手動断路器5を電動断路器のご
とき開閉器としてもよい。また以上述べた実施の形態に
よれば、設置スペースの削減が図れることにより多軸形
コンバインドサイクルへの適用も可能となる。
<Modification> The present invention is not limited to the embodiment described above, and may be modified as follows. For example, instead of the load switch 3 shown in FIG. 1, a generator breaker that opens when the starter is started, the rectifier 6 may be a diode rectifier, and the electric disconnector 9 may be a switch such as a manual disconnector. The manual disconnector 5 may be a switch such as an electric disconnector. Further, according to the embodiment described above, the installation space can be reduced, and therefore, the application to the multi-axis combined cycle can be realized.

【0036】[0036]

【発明の効果】本発明によれば、稼動率の少ない設備を
小規模にし、コスト低減、ならびに省スペースによるレ
イアウトの簡素化が図れ、また所内系統への高調波流出
がなくなり、高調波による所内機器への悪影響を取り除
くことができるガスタービン用起動装置を提供すること
ができる。
According to the present invention, a facility with a low operating rate can be reduced in size, cost can be reduced, and layout can be simplified by saving space. In addition, harmonic outflow to the in-house system can be eliminated and in-house due to harmonics can be eliminated. It is possible to provide a starter device for a gas turbine that can eliminate adverse effects on equipment.

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

【図1】本発明のガスタービン用起動装置の第1の実施
の形態の構成図。
FIG. 1 is a configuration diagram of a first embodiment of a gas turbine starter according to the present invention.

【図2】本発明のガスタービン用起動装置の第2の実施
の形態の要部のみを示す構成図。
FIG. 2 is a configuration diagram showing only a main part of a second embodiment of a gas turbine starting device of the invention.

【図3】図2のガスタービン用起動装置を実際に使用し
た例を示す構成図。
FIG. 3 is a configuration diagram showing an example in which the gas turbine starting device of FIG. 2 is actually used.

【図4】本発明のガスタービン用起動装置の第3の実施
の形態の構成図。
FIG. 4 is a configuration diagram of a gas turbine starter according to a third embodiment of the present invention.

【図5】本発明のガスタービン用起動装置の第4の実施
の形態の構成図。
FIG. 5 is a configuration diagram of a fourth embodiment of a gas turbine starting device of the invention.

【図6】従来のガスタービン用起動装置の一例の構成
図。
FIG. 6 is a configuration diagram of an example of a conventional gas turbine starting device.

【符号の説明】[Explanation of symbols]

1…主変しゃ断器 2…主変圧器 3…負荷開閉器 4…励磁変圧器 5…電動断路器(A) 6…サイリスタ整流器 7…界磁しゃ断器 8…静止形起動装置 LCI…ガスタービン用起動装置 9…電動断路器 10…発電機 11…界磁巻線 12…電動断路器(B) 13…所内配開装置 14…始動用励磁変圧器 15…入力変圧器 16…容器 17…主回路母線接続座(PSB) 18…励磁バスダクト座 19…ケーブル接続座 20…主回路母線 21…タービン発電機基礎台 22…所内変圧器 23…非常用所内配開装置 24…共通所内配開装置 25…非常用発電機 26…起動装置用連絡しゃ断器 27…非常用発電機しゃ断器 28…起動装置用発電機 29…静止形起動装置用しゃ断器 30…始動用励磁変圧器用しゃ断器 31…ユニット連絡用しゃ断器 32…ユニット用所内配開装置 1 ... Main breaker 2 ... Main transformer 3 ... Load switch 4 ... Excitation transformer 5 ... Electric disconnector (A) 6 ... Thyristor rectifier 7 ... Field breaker 8 ... Static starter LCI ... For gas turbine Starter 9 ... Electrical disconnector 10 ... Generator 11 ... Field winding 12 ... Electrical disconnector (B) 13 ... Distribution device 14 ... Excitation transformer for starting 15 ... Input transformer 16 ... Container 17 ... Main circuit Busbar connection seat (PSB) 18 ... Excitation bus duct seat 19 ... Cable connection seat 20 ... Main circuit busbar 21 ... Turbine generator foundation 22 ... In-station transformer 23 ... Emergency distribution device 24 ... Common distribution device 25 ... Emergency generator 26 ... Starter connection breaker 27 ... Emergency generator breaker 28 ... Starter generator 29 ... Static starter breaker 30 ... Starting excitation transformer breaker 31 ... Unit contact Sha Breaker 32 ... Unit internal distribution device

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 電力系統の電圧を降圧する主変圧器およ
びガスタービンの起動時開放する発電機しゃ断器または
負荷開閉器ならびに発電機を有するガスタービン発電設
備と、 前記主変圧器の低圧巻線と前記発電機しゃ断器または負
荷開閉器の間より主回路を分岐して一次巻線が接続さ
れ、二次巻線を2つ有する負荷時タップ切換器付三巻線
変圧器と、 この負荷時タップ切換器付三巻線変圧器の二次巻線の1
つを励磁巻線用とし、この出力電力を整流して前記発電
機の界磁巻線に直流を供給する整流器と、 この整流器と前記界磁巻線の間に接続され、前記ガスタ
ービン発電設備の起動完了後閉路する界磁開閉器と、 前記負荷時タップ切換器付三巻線変圧器の二次巻線の他
の1つを起動装置用とし、前記発電機と前記発電機しゃ
断器または負荷開閉器の間に断路器を介して接続され、
前記電力系統からの電力を可変周波数電力に変換し前記
発電機に供給する静止形起動装置と、 この静止形起動装置と前記三巻線変圧器の起動装置用の
二次巻線の間に接続され、前記ガスタービン発電設備の
起動時閉路し、起動完了後開路する開閉器と、 を具備したことを特徴としたガスタービン用起動装置。
1. A gas turbine power generation facility having a main transformer that steps down the voltage of a power system, a generator breaker or a load switch that opens when the gas turbine starts, and a low-voltage winding of the main transformer. A primary winding is connected between the generator breaker and the load switch and the primary winding is connected, and a three-winding transformer with a tap changer at load, which has two secondary windings, Secondary winding of three-winding transformer with tap changer 1
One for the excitation winding, which rectifies the output power and supplies direct current to the field winding of the generator, and the gas turbine power generation equipment connected between the rectifier and the field winding. Of the field switch which is closed after the completion of the start-up and another one of the secondary windings of the three-winding transformer with a tap changer during load are used as a starting device, and the generator and the generator breaker or Connected via a disconnector between the load switches
A static starter for converting electric power from the power system into variable frequency power and supplying the power to the generator, and a connection between the static starter and a secondary winding for the starter of the three-winding transformer. And a switch that is closed when the gas turbine power generation facility is activated and is opened after the activation is completed.
【請求項2】 前記負荷時タップ切換器付三巻線励磁変
圧器、静止形起動装置、前記整流器、前記界磁開閉器、
前記開閉器、前記断路器を含め同一容器内に収納したこ
とを特徴とした請求項1記載のガスタービン用起動装
置。
2. A three-winding excitation transformer with a tap changer during load, a static starter, the rectifier, the field switch,
The starter for a gas turbine according to claim 1, wherein the switch and the disconnector are housed in the same container.
【請求項3】 タービン発電機の起動時、発電所非常用
所内配開装置から切り離される起動装置用所内配開装置
に非常用発電機開閉器を介して非常用発電機を接続し、
前記起動装置用所内配開装置に前記非常用発電機の電力
を可変周波数電力に変換する静止形起動装置を接続し、
この静止形起動装置に開閉器を介してタービン発電機を
接続し、このタービン発電機の起動時前記非常用発電機
により得られる電力を、前記非常用発電機開閉器、開閉
器を閉路した状態で前記静止形起動装置に供給し、ここ
で得られる可変周波数電力により前記タービン発電機を
起動するようにしたことを特徴とするガスタービン用起
動装置。
3. When the turbine generator is started, the emergency generator is connected via an emergency generator switch to the starter internal distribution device separated from the power station emergency internal distribution device.
A stationary starter that converts the power of the emergency generator into variable frequency power is connected to the starter distribution device.
A state in which a turbine generator is connected to the static starter via a switch, and the power obtained by the emergency generator at the time of starting the turbine generator is closed by the emergency generator switch and the switch. The starting device for a gas turbine is characterized in that the turbine generator is started by the variable frequency electric power obtained here.
【請求項4】 発電所非常用所内配開装置から切り離さ
れた起動装置用所内配開装置に、静止形起動装置用発電
機を接続し、前記起動装置用所内配開装置に静止形起動
装置用開閉器を介して可変周波数電力に変換する静止形
起動装置を接続し、この静止形起動装置に開閉器を介し
てタービン発電機を接続し、このタービン発電機の起動
時前記静止形起動装置用発電機により得られる電力を、
前記静止形起動装置用開閉器、開閉器を閉路した状態で
前記静止形起動装置に供給し、ここで得られる可変周波
数電力により前記タービン発電機を起動するようにした
ことを特徴とするガスタービン用起動装置。
4. A stationary starter generator is connected to an in-house distribution device for a starter device separated from an in-house distribution device for a starter station, and the stationary starter device is connected to the distribution device for the starter device. A static starter for converting to variable frequency power is connected via a switch for operation, a turbine generator is connected to this static starter through a switch, and the static starter is used when the turbine generator is started. Power generated by the generator for
A switch for the static starter, and a gas turbine characterized in that the switch is supplied to the static starter in a closed state, and the turbine generator is started by the variable frequency power obtained here. Activation device.
JP7202267A 1995-08-08 1995-08-08 Starting device for gas turbine Pending JPH0951696A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7202267A JPH0951696A (en) 1995-08-08 1995-08-08 Starting device for gas turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7202267A JPH0951696A (en) 1995-08-08 1995-08-08 Starting device for gas turbine

Publications (1)

Publication Number Publication Date
JPH0951696A true JPH0951696A (en) 1997-02-18

Family

ID=16454716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7202267A Pending JPH0951696A (en) 1995-08-08 1995-08-08 Starting device for gas turbine

Country Status (1)

Country Link
JP (1) JPH0951696A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7256511B2 (en) * 2001-07-19 2007-08-14 Kabushiki Kaisha Toshiba Turbine-generator equipment and installation method thereof
JP2012500608A (en) * 2008-08-15 2012-01-05 アルストム テクノロジー リミテッド Power plant facilities for selective operation in power networks with different network frequencies

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7256511B2 (en) * 2001-07-19 2007-08-14 Kabushiki Kaisha Toshiba Turbine-generator equipment and installation method thereof
US7569946B2 (en) 2001-07-19 2009-08-04 Kabushiki Kaisha Toshiba Turbine-generator equipment and installation method thereof
JP2012500608A (en) * 2008-08-15 2012-01-05 アルストム テクノロジー リミテッド Power plant facilities for selective operation in power networks with different network frequencies

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