JP5012398B2 - Hydraulic governor control system for water turbine generator - Google Patents

Hydraulic governor control system for water turbine generator Download PDF

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JP5012398B2
JP5012398B2 JP2007269612A JP2007269612A JP5012398B2 JP 5012398 B2 JP5012398 B2 JP 5012398B2 JP 2007269612 A JP2007269612 A JP 2007269612A JP 2007269612 A JP2007269612 A JP 2007269612A JP 5012398 B2 JP5012398 B2 JP 5012398B2
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guide vane
control system
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lifting amount
vane opening
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孝弘 亀岡
博昭 藤盛
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Meidensha Corp
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    • 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
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Description

本発明は、水車発電機のガバナ制御方式に係り、特に油圧ガバナにおけるガイドベーン開度制御に関する。   The present invention relates to a governor control system for a water turbine generator, and more particularly to guide vane opening control in a hydraulic governor.

水力発電制御は、水車の調速制御、発電機の励磁制御や電圧制御や力率制御などの制御をしたり、ガバナフリー運転や負荷制限運転や定出力運転などを行なう。なお、負荷制限運転とは、ガイドベーン開度を一定に保つことで出力を一定にする。   Hydroelectric power generation control includes speed control of the water turbine, generator excitation control, voltage control, power factor control, and the like, and governor-free operation, load limiting operation, constant output operation, and the like. In the load limit operation, the output is made constant by keeping the guide vane opening degree constant.

水力発電所の制御装置の構成例を、図２を参照して説明する。なお、制御装置については調速制御系についてのみを示す。発電機ＡＧは、水車ＷＴにより回転させられて電力を発生し、一方、変圧器Ｔｒで抜き出してサイリスタ制御部Ｔｈにより得た励磁電流を、励磁機ＥＸに供給して発電機ＡＧの励磁をしている。また、ガイドベーン機構Ｇが作動することにより、水車ＷＴのガイドベーン開度が調整される。水車ＷＴ（発電機ＡＧ）の回転数は回転数センサＳRにより検出され、ガイドベーン開度はガイドベーン開度センサＳGにより検出される。 A configuration example of the control device of the hydroelectric power plant will be described with reference to FIG. Note that only the speed control system is shown for the control device. The generator AG is rotated by the water turbine WT to generate electric power, while the excitation current extracted by the transformer Tr and obtained by the thyristor control unit Th is supplied to the exciter EX to excite the generator AG. ing. Further, when the guide vane mechanism G is operated, the guide vane opening degree of the water turbine WT is adjusted. Rotational speed of the water turbine WT (generator AG) is detected by the rotation speed sensor S R, the guide vane opening is detected by the guide vane opening sensor S G.

制御装置１００では、負荷（速度）設定器６５Ｒにより設定負荷（設定速度）Ａ1が設定される。設定負荷Ａ1の値は、定格値を１００［％］としたパーセント値として設定される。また、回転速度検出器１０１は、回転数センサＳRの検出データを基に、水車ＷＴ（発電機ＡＧ）の回転速度を示す回転速度Ｎ［％］を求める。更に、ガイドベーン開度検出器１０２は、ガイドベーン開度センサＳGの検出データを基に、ガイドベーンの開度を示すガイドベーン開度Ａ2を求める。このガイドベーン開度Ａ2は、０〜１００［％］のパーセント値で表される。 In the control apparatus 100, the load (speed) setter 65R by the setting load (set speed) A 1 is set. The value of the set load A 1 is set as a percentage value with the rated value being 100 [%]. The rotation speed detector 101, based on the detection data of the rotational speed sensor S R, obtaining the water turbine WT rotational speed N [%] indicating the rotational speed of the (generator AG). Furthermore, the guide vane opening detector 102, based on the detection data of the guide vane opening sensor S G, obtains the guide vane opening A 2 indicating a degree of opening of the guide vanes. The guide vane opening A 2 is expressed as a percentage value of 0 to 100 [%].

スケール変換器１０３は、ガイドベーン開度Ａ2の値が１０〜９０［％］であるときに、値を０〜１００［％］に対応させてスケール変換した変換ガイドベーン開度Ａ3［％］を出力する。調定率設定器１０４は、変換ガイドベーン開度Ａ3の値が０〜１００［％］であるときに、値を０〜３［％］に対応させた速度調定率Ａ4を出力する。 When the value of the guide vane opening A 2 is 10 to 90 [%], the scale converter 103 converts the converted guide vane opening A 3 [%] corresponding to the value of 0 to 100 [%]. ] Is output. When the value of the conversion guide vane opening A 3 is 0 to 100 [%], the adjustment rate setting unit 104 outputs a speed adjustment rate A 4 corresponding to a value of 0 to 3 [%].

減算器１０５は、設定負荷（設定速度）Ａ1から、回転速度Ｎ及び速度調定率Ａ4を減算して速度偏差Ａ5を求めて出力する。 The subtractor 105 subtracts the rotational speed N and the speed regulation rate A 4 from the set load (set speed) A 1 to obtain and output a speed deviation A 5 .

なお、減算器１０５にて速度調定率Ａ4の減算をするのは、次の理由による。即ち、交流発電機を他の発電機と並行運転する場合には、負荷が増加した際に各発電機の回転速度がある程度低下するようにしておく必要がある。そこで、負荷が大きくガイドベーン開度Ａ2が大きいときには速度調定率Ａ4が大きくなり、この場合には、速度偏差Ａ5が小さくなって、ガイドベーンをやや閉じて回転速度をやや低下させるようにする。 The subtraction of the speed adjustment rate A 4 by the subtractor 105 is due to the following reason. That is, when the AC generator is operated in parallel with other generators, it is necessary to reduce the rotational speed of each generator to some extent when the load increases. Therefore, when the load is large and the guide vane opening A 2 is large, the speed adjustment rate A 4 becomes large. In this case, the speed deviation A 5 becomes small, and the guide vane is slightly closed to slightly reduce the rotational speed. To.

リミッタ付きの比例演算器１０６は、速度偏差Ａ5を比例演算して比例速度偏差Ａ6を出力する。なお、比例速度偏差Ａ6の値は、あらかじめ設定された上限値を越えないように制限されている。微分器１０７は、回転速度Ｎを微分演算して微分速度ΔＮを出力する。減算器１０８は、比例速度偏差Ａ6から微分速度ΔＮを減算して、比例微分速度偏差Ａ7を出力する。したがって、回転速度Ｎが急増した場合には、微分速度ΔＮが大きくなり、比例微分速度偏差Ａ7が小さくなり、後述する設定ガイドベーン開度Ａ8が小さくなり、回転速度の急増を抑えるようにガイドベーンが閉まっていく。 Limiter of the proportional calculator 106, a speed deviation A 5 proportional calculation and outputs a proportional speed deviation A 6. Note that the value of the proportional speed deviation A 6 is limited so as not to exceed a preset upper limit value. The differentiator 107 differentiates the rotational speed N and outputs a differential speed ΔN. The subtracter 108 subtracts the differential speed ΔN from the proportional speed deviation A 6 and outputs a proportional differential speed deviation A 7 . Therefore, when the rotational speed N increases rapidly, the differential speed ΔN increases, the proportional differential speed deviation A 7 decreases, the setting guide vane opening A 8 described later decreases, and the rapid increase of the rotational speed is suppressed. The guide vanes close.

リミッタ付きの比例積分減算器１０９は、比例微分速度偏差Ａ7を比例積分演算して設定ガイドベーン開度Ａ8［％］を出力する。なお、設定ガイドベーン開度Ａ8の値は、上限負荷設定器７７Ｅにより設定した上限値を越えないよう、リミット処理されて制限されている。 A proportional integral subtracter 109 with a limiter performs a proportional integral operation on the proportional differential speed deviation A 7 and outputs a set guide vane opening A 8 [%]. Note that the value of the setting guide vane opening A 8 is limited by a limit process so as not to exceed the upper limit set by the upper limit load setting unit 77E.

減算器１１０は、設定ガイドベーン開度Ａ8からガイドベーン開度Ａ2を減算して指令ガイドベーン開度Ａ9を出力する。ガイドベーン機構Ｇは、指令ガイドベーン開度Ａ9で指令された開度となるようにガイドベーンの開度調整をする。このようにガイドベーン開度制御をすることにより、ガイドベーン開度Ａ2が設定ガイドベーン開度Ａ8に近づいていき、最終的にはガイドベーン開度Ａ2が設定ガイドベーン開度Ａ8に等しくなる。 The subtractor 110 subtracts the guide vane opening A 2 from the set guide vane opening A 8 and outputs a command guide vane opening A 9 . The guide vane mechanism G adjusts the opening degree of the guide vane so that the opening degree commanded by the command guide vane opening degree A 9 is obtained. By performing the guide vane opening control in this way, the guide vane opening A 2 approaches the set guide vane opening A 8 , and finally the guide vane opening A 2 becomes the set guide vane opening A 8. Is equal to

負荷制限運転時には、設定ガイドベーン開度Ａ8の値は、上限負荷設定器７７Ｅで設定（制限）した値となる。このため、負荷設定器６５Ｒで設定した設定負荷Ａ1の値が仮に定格値（１００％）であるとすると、上限負荷設定器７７Ｅにより設定する上限値を増加させてもガイドベーンは開いていかない。そこで、負荷制限運転を行うときには、負荷設定器６５Ｒで設定する設定負荷Ａ1の値を、定格値よりも大きい上限値（１０８％）に吊り上げている（例えば、特許文献１参照）。
特許第３５３１３１０号公報 During the load limiting operation, the value of the setting guide vane opening A 8 is a value set (limited) by the upper limit load setting device 77E. For this reason, if the value of the set load A 1 set by the load setting unit 65R is the rated value (100%), the guide vane does not open even if the upper limit value set by the upper limit load setting unit 77E is increased. . Therefore, when performing the load limiting operation, the value of the set load A 1 set by the load setting device 65R is lifted to the upper limit value (108%) larger than the rated value (see, for example, Patent Document 1).
Japanese Patent No. 3531310

図３は、図２における水車発電機の油圧ガバナのガイドベーン開度制御系の機能ブロックを示し、ディジタル制御で行う場合である。ガイドベーン開度演算部１０が発生する開度指令値とガイドベーン開度検出値との偏差をリミッタ付比例演算部１１で比例演算し、これをＤ／Ａ変換器１２でアナログ量に変換してガイドベーン駆動部（油圧アクチェータ）１３の開度制御量を調整する。ガイド駆動部１３は開度制御量に応じて水車（ＷＴ）１４のガイドベーンの開度機構を駆動し、開度を増減する。このガイドベーンの開度は開度検出器１５で検出し、開度指令値との突合せにフィードバックされる。１６は現在のガイドベーン開度指令値および開度検出値の両方をメータ表示する計測表示メータであり、手動操作時に操作員による目視操作を可能にする。   FIG. 3 shows a functional block of the guide vane opening control system of the hydraulic governor of the water turbine generator in FIG. 2, which is performed by digital control. The deviation between the opening command value generated by the guide vane opening calculation unit 10 and the guide vane opening detection value is proportionally calculated by the proportional calculation unit 11 with a limiter, and this is converted into an analog amount by the D / A converter 12. The opening degree control amount of the guide vane drive unit (hydraulic actuator) 13 is adjusted. The guide drive unit 13 drives the opening mechanism of the guide vane of the water turbine (WT) 14 according to the opening control amount, and increases or decreases the opening. The opening degree of the guide vane is detected by the opening degree detector 15 and fed back to the match with the opening degree command value. Reference numeral 16 denotes a measurement display meter that displays both the current guide vane opening command value and the detected opening value as a meter, and enables a visual operation by an operator during manual operation.

このようなガイドベーン開度制御系で制御される油圧ガバナの場合、Ａ点の開度制御量が「０」となるとガイドベーンが閉じる方向になるように構成されている。したがって、ガイドベーン開度を一定に保つためには、Ａ点に絶えず一定の制御量（＋）を出力する必要がある。Ａ点に制御量（＋）指令を出力するためには、Ｂ点に一定の偏差（＋）が得られる必要がある。   In the case of a hydraulic governor controlled by such a guide vane opening control system, when the opening control amount at point A becomes “0”, the guide vane is closed. Therefore, in order to keep the guide vane opening constant, it is necessary to constantly output a constant control amount (+) at point A. In order to output the control amount (+) command to the A point, it is necessary to obtain a certain deviation (+) at the B point.

ここで、ガイドベーン開度演算部１０は、負荷設定に応じて開度指令を０〜１００％で増減させるが、開度指令（負荷指令）が１００％（上限値）でも実際の開度は、前記のように、吊り上げ分だけ低い開度となるため、場合によっては全負荷をとれない可能性があった。   Here, the guide vane opening calculation unit 10 increases or decreases the opening command by 0 to 100% according to the load setting, but the actual opening is not changed even if the opening command (load command) is 100% (upper limit value). As described above, since the opening becomes lower by the amount of lifting, there is a possibility that the full load cannot be taken in some cases.

また、計測表示メータ１６では開度指令が赤針、開度検出が黒針で構成されているが、開度指令と実際の開度検出値との間にずれが発生し、吊り上げ量によっては針の位置が大きくずれることもあり、手動操作時に操作員に戸惑いを与えるおそれがあった。   Further, in the measurement display meter 16, the opening degree command is constituted by a red needle and the opening degree detection is constituted by a black needle. However, a deviation occurs between the opening degree instruction and the actual opening degree detection value, and depending on the lifting amount. The position of the needle may be greatly displaced, which may cause confusion to the operator during manual operation.

本発明の目的は、負荷設定器（６５Ｒ）で設定する負荷設定値の上限値を吊り上げ分だけ低い値に制限してガイドベーン開度指令とする場合にも全負荷までのガイドベーン開度制御ができる水車発電機の油圧ガバナ制御方式を提供することにある。   The object of the present invention is to control the guide vane opening up to the full load even when the upper limit value of the load setting value set by the load setting device (65R) is limited to a value lower by the lifting amount and used as the guide vane opening command. It is to provide a hydraulic governor control system for a water turbine generator capable of performing the above.

本発明は、前記の課題を解決するため、開度指令値に吊り上げ量の加算回路を設け、開度指令の下限値は「０」から吊り上げ量の分だけ下げるようにしたもので、以下の構成を特徴とする。   In order to solve the above-mentioned problems, the present invention is provided with a lifting amount addition circuit for the opening degree command value, and the lower limit value of the opening degree command is lowered from “0” by the amount of the lifting amount. Features the configuration.

（１）負荷設定器（６５Ｒ）で設定する負荷設定値の上限値を吊り上げ分だけ低い値に制限し、この負荷設定に対する水車速度と速度調定率による速度制御演算によってガイドベーン開度指令を得、このガイドベーン開度指令を上限負荷設定器（７７Ｅ）により制限してガイドベーン開度制御系の開度指令とする水車発電機の油圧ガバナ制御方式であって、
負荷設定器（６５Ｒ）で負荷設定し、かつガバナ自動制御時に、前記ガイドベーン開度制御系の開度指令に一定の吊り上げ量（α）を加算する吊り上げ量設定器を備えたことを特徴とする。 (1) The upper limit value of the load setting value set by the load setting device (65R) is limited to a value that is lower by the lifting amount, and a guide vane opening degree command is obtained by speed control calculation based on the turbine speed and speed regulation rate for this load setting. , A hydraulic governor control system for a water turbine generator that limits the guide vane opening command by an upper limit load setting device (77E) and sets the guide vane opening control system as an opening command,
A load setting device (65R) is provided, and a lifting amount setting device for adding a certain lifting amount (α) to the opening command of the guide vane opening control system at the time of automatic governor control is provided. To do.

（２）前記ガイドベーン開度制御系の開度指令の下限値は、前記吊り上げ量（α）を加算するときに該吊り上げ量（α）分だけ自動的に下げる手段を備えたことを特徴とする。   (2) The lower limit value of the opening command of the guide vane opening control system is provided with means for automatically lowering the lifting amount (α) by the amount of the lifting amount (α) when the lifting amount (α) is added. To do.

（３）前記吊り上げ量（α）は、
α＝実際の吊り上げ量／ガイドベーン開度制御系の比例演算部のゲイン
から求めることを特徴とする。 (3) The lifting amount (α) is:
α is obtained from the gain of the proportional calculation unit of the actual lifting amount / guide vane opening control system.

以上のとおり、本発明によれば、開度指令値に吊り上げ量の加算回路を設けため、負荷設定器（６５Ｒ）で設定する負荷設定値の上限値を吊り上げ分だけ低い値に制限してガイドベーン開度指令とする場合にも全負荷までのガイドベーン開度制御ができる。また、ガイドベーン開度指令と開度検出値が常に一致し、計測表示メータの赤針・黒針の差がなくなり、手動操作時に操作員に戸惑いを与えることはない。   As described above, according to the present invention, since the lifting command value is provided with the lifting amount adding circuit, the upper limit value of the load setting value set by the load setting device (65R) is limited to a value lower by the lifting amount and the guide is provided. Even when the vane opening command is used, the guide vane opening control up to the full load can be performed. In addition, the guide vane opening command and the detected opening value always coincide with each other, and there is no difference between the red and black hands of the measurement display meter, so that the operator is not confused during manual operation.

また、開度指令の下限値は「０」から吊り上げ量の分だけ下げるようにしたため、全負荷遮断等でも確実に全閉まで制御が可能となる。さらに、ガバナの手動操作時は吊り上げ量が「０」に戻され、低速度での手動操作も可能となる。   In addition, since the lower limit value of the opening degree command is lowered from “0” by the amount of lifting, it is possible to control to the fully closed state even when the full load is interrupted. Furthermore, the lifting amount is returned to “0” during manual operation of the governor, and manual operation at a low speed is also possible.

図１は、本発明の実施形態を示す油圧ガバナのガイドベーン開度制御系の機能ブロックであり、図３と同等の部分は同一符号で示す。   FIG. 1 is a functional block of a guide vane opening degree control system of a hydraulic governor showing an embodiment of the present invention, and parts equivalent to those in FIG.

本実施形態では、図１に示すように、吊り上げ量設定器１７と、この設定器１７による設定値を開度指令に加算する加算器１８を追加した構成とする。   In the present embodiment, as shown in FIG. 1, a lifting amount setting unit 17 and an adder 18 for adding a set value by the setting unit 17 to the opening degree command are added.

吊り上げ量設定器１７は、発電機の起動時または手動操作時には吊り上げ量を「０」に設定し、図２に示す負荷（速度）設定器６５Ｒで負荷設定（ＯＮ）し、かつガバナ自動制御時（手動操作でない時）に吊り上げ量を「α」に切り替え設定する。   The lifting amount setting unit 17 sets the lifting amount to “0” when the generator is started or manually operated, and is set (ON) by the load (speed) setting unit 65R shown in FIG. 2 and when the governor is automatically controlled. Change the lifting amount to “α” when it is not manually operated.

すなわち、ガイドベーン開度演算部１０は、開度指令（負荷指令）が１００％でも実際の開度は、前記のように、吊り上げ分低い開度となるが、１００％の開度指令に吊り上げ量「α」を加算することで、開度指令と開度検出を常に一致させ、全負荷をとれるようにする。吊り上げ量「α」は次の式で求めることができる。なお、吊り上げ量「α」はガバナ制御系や負荷状況に応じて任意に変更可能としておくのが好ましい。   In other words, the guide vane opening calculation unit 10 does not increase the actual opening even when the opening command (load command) is 100%, as described above. By adding the amount “α”, the opening degree command and the opening degree detection are always matched so that the full load can be taken. The lifting amount “α” can be obtained by the following equation. It is preferable that the lifting amount “α” can be arbitrarily changed according to the governor control system and the load condition.

α＝実際の吊り上げ量／比例演算部１１のゲイン
ここで、負荷遮断等が発生した場合、開度指令の下限が「０」では実際のガイドベーンは開度指令に吊り上げ量「α」が加算されて全閉とならない可能性があるため、ガイドベーン開度演算部１０の発生する開度指令の下限値を「０」から「−α」に変更する。この下限値は、設定器１７の出力切り替え時に自動で設定する。つまり、開度指令＝０では「α」分の開度指令が出力され、ガイドベーン駆動部１３にはガイドベーンを開く方向の制御量（＋）が入力されるのを防止する。 α = actual lifting amount / gain of proportional calculation unit 11 Here, when load interruption occurs, when the lower limit of the opening command is “0”, the actual guide vane adds the lifting amount “α” to the opening command. Therefore, the lower limit value of the opening command generated by the guide vane opening calculation unit 10 is changed from “0” to “−α”. This lower limit value is automatically set when the output of the setting device 17 is switched. That is, when the opening command = 0, an opening command for “α” is output, and the guide vane drive unit 13 is prevented from being input with a control amount (+) in the direction of opening the guide vane.

したがって、本実施形態によれば、開度指令に吊り上げ量「α」を加算することにより全負荷までの制御が可能となる。また、開度指令と実際の開度検出値との間にずれがなくなり、計測表示メータの赤針・黒針の差をなくした表示を得ることができる。また、開度指令の下限値を「−α」とするため、全負荷遮断等でも確実に全閉まで制御が可能となる。さらに、ガバナの手動操作時は吊り上げ量が「０」に戻され、低速度での手動操作も可能となる。   Therefore, according to the present embodiment, the control up to the full load can be performed by adding the lifting amount “α” to the opening degree command. Further, there is no deviation between the opening degree command and the actual opening degree detection value, and a display in which the difference between the red and black hands of the measurement display meter is eliminated can be obtained. In addition, since the lower limit value of the opening degree command is set to “−α”, even when the full load is interrupted or the like, the control can be reliably performed until the valve is fully closed. Furthermore, the lifting amount is returned to “0” during manual operation of the governor, and manual operation at a low speed is also possible.

本発明の実施形態を示す油圧ガバナのガイドベーン開度制御系の機能ブロック。The functional block of the guide vane opening degree control system of the hydraulic governor which shows embodiment of this invention. 水力発電所の制御装置の構成例。The structural example of the control apparatus of a hydroelectric power station. 従来の油圧ガバナのガイドベーン開度制御系の機能ブロック。Functional block of a conventional guide vane opening control system of a hydraulic governor.

符号の説明Explanation of symbols

１０ ガイドベーン開度演算部
１１ リミッタ付比例演算部
１２ Ｄ／Ａ変換器
１３ ガイドベーン駆動部
１４ 水車（ＷＴ）
１５ ガイドベーン開度検出器
１６ 計測表示メータ
１７ 吊り上げ量設定器
１８ 加算器 DESCRIPTION OF SYMBOLS 10 Guide vane opening calculating part 11 Proportional calculating part with a limiter 12 D / A converter 13 Guide vane drive part 14 Waterwheel (WT)
15 Guide vane opening detector 16 Measurement display meter 17 Lifting amount setting device 18 Adder

Claims (3)

負荷設定器（６５Ｒ）で設定する負荷設定値の上限値を吊り上げ分だけ低い値に制限し、この負荷設定に対する水車速度と速度調定率による速度制御演算によってガイドベーン開度指令を得、このガイドベーン開度指令を上限負荷設定器（７７Ｅ）により制限してガイドベーン開度制御系の開度指令とする水車発電機の油圧ガバナ制御方式であって、
負荷設定器（６５Ｒ）で負荷設定し、かつガバナ自動制御時に、前記ガイドベーン開度制御系の開度指令に一定の吊り上げ量（α）を加算する吊り上げ量設定器を備えたことを特徴とする水車発電機の油圧ガバナ制御方式。 The upper limit value of the load setting value set by the load setting device (65R) is limited to a value lower by the lifting amount, and a guide vane opening command is obtained by speed control calculation based on the turbine speed and the speed regulation rate for this load setting. A hydraulic governor control method for a turbine generator that limits a vane opening command by an upper limit load setter (77E) to be an opening command of a guide vane opening control system,
A load setting device (65R) is provided, and a lifting amount setting device for adding a certain lifting amount (α) to the opening command of the guide vane opening control system at the time of automatic governor control is provided. Hydraulic governor control system for turbine generator. 前記ガイドベーン開度制御系の開度指令の下限値は、前記吊り上げ量（α）を加算するときに該吊り上げ量（α）分だけ自動的に下げる手段を備えたことを特徴とする請求項１に記載の水車発電機の油圧ガバナ制御方式。   The lower limit value of the opening command of the guide vane opening control system includes means for automatically lowering the lower limit value by the lifting amount (α) when the lifting amount (α) is added. The hydraulic governor control system of the water turbine generator described in 1. 前記吊り上げ量（α）は、
α＝実際の吊り上げ量／ガイドベーン開度制御系の比例演算部のゲイン
から求めることを特徴とする請求項１または２に記載の水車発電機の油圧ガバナ制御方式。 The lifting amount (α) is
The hydraulic governor control system for a turbine generator according to claim 1 or 2, wherein α = actual lifting amount / gain of a proportional calculation unit of a guide vane opening control system.
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Publication number Priority date Publication date Assignee Title
CN109209752A (en) * 2018-10-26 2019-01-15 大唐甘肃发电有限公司碧口水力发电厂 Based on hydraulic turbine water flow speed regulating control equipment and control method

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CN112901409B (en) * 2021-01-18 2022-07-19 中国长江电力股份有限公司 Automatic intelligent setting method and system for measuring range of speed regulator servomotor displacement sensor

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JP3531310B2 (en) * 1995-09-14 2004-05-31 株式会社明電舎 Control unit for hydroelectric power plant

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Publication number Priority date Publication date Assignee Title
CN109209752A (en) * 2018-10-26 2019-01-15 大唐甘肃发电有限公司碧口水力发电厂 Based on hydraulic turbine water flow speed regulating control equipment and control method
CN109209752B (en) * 2018-10-26 2020-07-31 大唐甘肃发电有限公司碧口水力发电厂 Water flow speed regulation control equipment and control method based on water turbine

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