JPS5953036A - Starting system for dc transmitting system - Google Patents
Starting system for dc transmitting systemInfo
- Publication number
- JPS5953036A JPS5953036A JP57162318A JP16231882A JPS5953036A JP S5953036 A JPS5953036 A JP S5953036A JP 57162318 A JP57162318 A JP 57162318A JP 16231882 A JP16231882 A JP 16231882A JP S5953036 A JPS5953036 A JP S5953036A
- Authority
- JP
- Japan
- Prior art keywords
- generator
- frequency
- power transmission
- starting
- converter
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
不発り」は、直流送“らシステムの起動方式に係り、特
に、発電機の出力を全て、直流送電で送る所謂直流単独
送電システムに好適な起動方式に関する。DETAILED DESCRIPTION OF THE INVENTION The term "no-fire" relates to a starting method for a DC power transmission system, and particularly to a starting method suitable for a so-called direct current power transmission system in which all the output of a generator is transmitted by direct current power transmission.
送電側、受ＩＬ側の各々に交流系統を持つ一般の直流送
電システムでは、直流系の起動タイミングは Ｑｌ、別
な場合を除いて特に問題とｉｔｌらないが直流単独送電
における初期の起動、即ち、発電機出力零の状態から立
ち上ける場合にし、１１、発電機出力上昇とタイミング
全台わせて直流糸の起！１１］をする必袈がある。In a general DC power transmission system that has an AC system on each of the power transmission side and receiving IL side, the start-up timing of the DC system is Ql, which is not a particular problem except in other cases, but the initial start-up in DC single power transmission, i.e. , When starting up from a state where the generator output is zero, 11. Start up the DC thread by increasing the generator output and timing all units! 11].
タイミング遅れると、発ｉｔｔ’＝タービンが加速され
、又タイミングが早すぎると、光也樵出力が足らないの
で、周波数低下、サイリスタバルブの電流断続等の問題
が発生する。If the timing is delayed, the turbine will be accelerated, and if the timing is too early, the output of the turbine will be insufficient, resulting in problems such as a drop in frequency and intermittent current in the thyristor valve.
本発明の目的は、庁１記の問題点４角′１決シ２、直流
印独送電システムの初期起動に於て、発電機の出力上昇
とタイミングを合わせる直流系の起動方式を提供する事
にある。The purpose of the present invention is to solve the problems mentioned in the Office No. 1 and 2, and to provide a DC system startup method that matches the timing with the output rise of the generator during the initial startup of the DC Indo-German power transmission system. It is in.
係る直流系の起動タイミングｄ１、発電機の機械入力（
蒸気）が、直流系の最小変換ＩＬ力に立ち上がった時点
にするのが好ましい。本発明ではこのタイミングを、発
電機出力周波数の上昇から得る。The startup timing d1 of the DC system, the mechanical input of the generator (
It is preferable to do this at the point when the current (steam) has risen to the minimum conversion IL power of the DC system. In the present invention, this timing is obtained from the increase in generator output frequency.
発電機タービンの時定数は、６秒〜８秒でらるのに附し
、直流系の起動時定数は、主回路定数わるいは起動方式
にもよるが、約５００ｍ“・（（程度以内でるる。従っ
て、周波数の上昇を検出してから直流系の起動を行なっ
ても、タービンに対し、ストレスが損かることはない。The time constant of the generator turbine is 6 to 8 seconds, and the starting time constant of the DC system is approximately 500 m'' (within about 500 m), depending on the main circuit constant or the starting method. Therefore, even if the DC system is started after detecting a rise in frequency, stress will not be lost on the turbine.
以下、本発明の一実施例全図により説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to all drawings.
捷ず発電機１はしゃ断器開放して無負荷状態（タービン
風損および所内負荷）で運転し、はぼ定格速度となった
時点でしゃ断器２を投入して変換器８に電圧を掛けた状
態にしておく。次に、発電機１の機械人力を、変換器の
最小運転電力相当に立ち上ける。この状態でｔよ、負荷
がないのでタービン速度が定格速度から幾分上昇する。The generator 1 was operated in a no-load state (turbine windage loss and station load) with the breaker open, and when the rated speed was reached, the breaker 2 was closed and voltage was applied to the converter 8. keep it in condition. Next, the mechanical power of the generator 1 is increased to the level equivalent to the minimum operating power of the converter. In this state, there is no load, so the turbine speed increases somewhat from the rated speed.
この周波数の上昇ｆ ’６Ｌ圧変成器３を入力源とする
周波数上昇検出器４によシ検出する。そして比較器５に
より、この周波数上昇があらかじめ力えられたある値よ
りも大きくなった半金検出し、その信号を、制御装置６
に与える。制御装ｆＭ：６は、従来公知の変換器の起動
方式で、交直変換器８ｉ立ち上げる。This frequency increase f' is detected by a frequency increase detector 4 which uses the 6L pressure transformer 3 as an input source. Then, the comparator 5 detects when this frequency increase is larger than a preset value, and the signal is sent to the control device 6.
give to The control device fM:6 starts up the AC/DC converter 8i using a conventionally known converter starting method.
−且立ち上げた後は、周波数一定制御等により、発′亀
機の出力を協調の制御をすればよいのだが、これは、起
動方式とは直接には関係しないので説明を省略する。- After startup, the output of the generator can be controlled in a coordinated manner using constant frequency control, etc., but since this is not directly related to the startup method, the explanation will be omitted.
又、周波数上昇検出に当たっては、単に、定格周波数か
らの上昇を見るのではなく、無負荷時の周波截ヲ記憶し
ておき、それとの偏差を見た方が発電機側の設定の誤差
等の影響がなく好せしい。In addition, when detecting a frequency increase, instead of simply looking at the rise from the rated frequency, it is better to memorize the frequency at no load and look at the deviation from it to detect errors in the generator settings. There is no influence and it is good.
又、周波数検出系の誤動作時の、システム誤動作を防ぐ
為には、周波数上昇と、発篭機出力立ち上は信号との論
理積で、制御装置に起動指令を与える方法が有効である
。またしゃ断器２の投入時の電圧確立による周波数上昇
と混同しないよう電圧上昇を伴なわないこと等も条件の
１つとすることが望ましい。Furthermore, in order to prevent system malfunctions when the frequency detection system malfunctions, it is effective to give a start command to the control device by logically multiplying the frequency rise and the rise of the carton generator output with a signal. It is also desirable that one of the conditions be that there is no voltage increase so as not to be confused with a frequency increase due to voltage establishment when the breaker 2 is turned on.
本発明によれば、起動タイミングを、発電機とのインタ
ーフェースをとらずに、変換所節＾で検出する事ができ
るので、システムの信頼度を上けることができる。又、
既設発電機の出力を直流単独で送電するような場合にも
、発電機側の改造等が不要である。According to the present invention, the start timing can be detected at the converter station without having to interface with the generator, so the reliability of the system can be increased. or,
Even in cases where the output of an existing generator is transmitted solely as direct current, there is no need to modify the generator side.
図は、本発明の一実施例を示す。
１・・・発電機、９・・・直流送電線、２・・・しゃ断
器、１゜・・・直流リアクトル、３・・・ＰＴ（又はＰ
Ｄ）、１１・・・交流送電線、４・・・周波数（上昇）
検出器、訃・・比ルメ器、６・・・制御回路、７・・・
変換用汲圧器、８・・・カイリスタバルフ。
代理人 弁理士 高橋明洗The figure shows an embodiment of the invention. 1... Generator, 9... DC transmission line, 2... Breaker, 1°... DC reactor, 3... PT (or P
D), 11... AC power transmission line, 4... Frequency (increase)
Detector, mortar... comparison device, 6... control circuit, 7...
Conversion pump, 8...Kairista valve. Agent Patent Attorney Akira Takahashi
Claims (1)
の交流系統とをしゃ断器を介して接続する直流送電シス
テムの起動方式において、前記交流系統を無負荷、所定
周波数に起動してしゃ断器投入し、交直変換器側におい
てはその後周波数上昇したことをもって交直変換器にゲ
ートパルス印加しこれ丘起動することを特徴と１”る直
流送電システムの起動方式。1. In a startup method for a DC power transmission system that connects a stopped AC/DC converter connected to a power transmission line and a stopped AC system via a breaker, the AC system is started with no load at a predetermined frequency and then shut off. A method for starting a DC power transmission system characterized by applying a gate pulse to the AC/DC converter and starting up the AC/DC converter when the frequency increases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57162318A JPS5953036A (en) | 1982-09-20 | 1982-09-20 | Starting system for dc transmitting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57162318A JPS5953036A (en) | 1982-09-20 | 1982-09-20 | Starting system for dc transmitting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5953036A true JPS5953036A (en) | 1984-03-27 |
| JPS6355294B2 JPS6355294B2 (en) | 1988-11-01 |
Family
ID=15752244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57162318A Granted JPS5953036A (en) | 1982-09-20 | 1982-09-20 | Starting system for dc transmitting system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5953036A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0421275A (en) * | 1990-05-15 | 1992-01-24 | Victor Co Of Japan Ltd | Small sized video equipment and camera holder |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58112475A (en) * | 1981-12-26 | 1983-07-04 | Tokyo Electric Power Co Inc:The | Starting system for ac/dc converter |
-
1982
- 1982-09-20 JP JP57162318A patent/JPS5953036A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58112475A (en) * | 1981-12-26 | 1983-07-04 | Tokyo Electric Power Co Inc:The | Starting system for ac/dc converter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6355294B2 (en) | 1988-11-01 |
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