JPH0442548B2 - - Google Patents
Info
- Publication number
- JPH0442548B2 JPH0442548B2 JP58042690A JP4269083A JPH0442548B2 JP H0442548 B2 JPH0442548 B2 JP H0442548B2 JP 58042690 A JP58042690 A JP 58042690A JP 4269083 A JP4269083 A JP 4269083A JP H0442548 B2 JPH0442548 B2 JP H0442548B2
- Authority
- JP
- Japan
- Prior art keywords
- guide vane
- pressure stage
- opening
- movable guide
- stage
- 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.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
- F03B15/02—Controlling by varying liquid flow
- F03B15/04—Controlling by varying liquid flow of turbines
- F03B15/06—Regulating, i.e. acting automatically
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Water Turbines (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は多段水力機械の運転制御方法に係り、
特に最高圧段部から最低圧段部までの各段部の流
路が返し通路によつて連絡され、かつ最高圧段部
と最低圧段部とに可動ガイドベーンを備えた多段
水力機械の定常運転時における負荷調整制御方法
に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method for controlling the operation of a multi-stage hydraulic machine.
In particular, the steady state of a multistage hydraulic machine in which the flow paths of each stage from the highest pressure stage to the lowest pressure stage are connected by return passages, and the highest pressure stage and the lowest pressure stage are equipped with movable guide vanes. This invention relates to a load adjustment control method during operation.
最高圧段部から最低圧段部までの各段部にラン
ナを備え、各段部を返し通路によつて連絡した多
段水力機械の運転制御は、各段部のランナの外側
に設けたガイドベーンの開度を調整し各段部の水
流状態を制御することにより行なわれる。しかし
ながら、各段部のランナの外側に可動ガイドベー
ンを設け、かつ各段部の可動ガイドベーンに開閉
操作機構を連絡させることは、構造上の制約を受
けて極めて困難である。
The operation of a multi-stage hydraulic machine, which has a runner in each stage from the highest pressure stage to the lowest pressure stage, and each stage is connected by a return passage, is controlled by guide vanes installed outside the runners of each stage. This is done by adjusting the opening degree and controlling the water flow condition of each step. However, it is extremely difficult to provide a movable guide vane outside the runner of each step and to connect the opening/closing operation mechanism to the movable guide vane of each step due to structural constraints.
そのため従来の多段水力機械においては、各段
部のランナの外側に固定ベーンのみを設け、水力
機械の入口部に設けた入口弁の開閉制御によつて
運転制御を行なうものもあるが、水流量調整が入
口弁のみで行なわれるため、設計点から離れた小
流量、大流量時の多段水力機械の水力性能の低下
が著しいという問題があつた。 For this reason, in some conventional multi-stage hydraulic machines, only fixed vanes are installed on the outside of the runners of each stage, and operation is controlled by opening and closing an inlet valve installed at the inlet of the hydraulic machine. Since adjustment is performed only by the inlet valve, there has been a problem in that the hydraulic performance of the multistage hydraulic machine is significantly degraded at small and large flow rates far from the design point.
このような入口弁制御方式による運転制御方法
の有する問題点を解決策として最高圧段部あるい
は最低圧段部のみに水口開度を調節できる可動ガ
イドベーンを設け、この可動ガイドベーンによつ
て水流量調整を行なう多段水力機械が考えられる
が、小流量運転時の振動、騒音、キヤビテーシヨ
ン等の問題点をやはり有している。 As a solution to the problems of the operation control method using the inlet valve control method, a movable guide vane that can adjust the opening of the water port is provided only in the highest pressure stage or the lowest pressure stage. A multistage hydraulic machine that adjusts the flow rate has been considered, but it still has problems such as vibration, noise, and cavitation when operating at a small flow rate.
そこで、構造上においても合理的で無理がな
く、かつ総体的に高い水力性能を有する多段水力
機械として、最高圧段部および最低圧段部に水口
開度を調整できる可動ガイドベーンを備えた多段
水力機械が考えられる。 Therefore, we developed a multi-stage hydraulic machine with movable guide vanes that can adjust the opening of the water port in the highest pressure stage and the lowest pressure stage. Hydraulic machines can be considered.
このように、最高圧段部と最低圧段部に可動ガ
イドベーンを備えた多段水力機械は、単段の水力
機械に比べて流路形状が複雑であつて、かつ可動
ガイドベーンが２組あるため、定常運転時の負荷
調整制御の際、各可動ガイドベーンの開度を的確
に調整する必要がある。この開度調整が確実に行
なわれない場合には、多段水力機械全体に作用す
る落差を各段部のランナが分担する割合（落差分
担）が異なつて不均一となり、各段部では基準点
から外れた不安定な水力特性領域におち入るので
水力性能の低下を招いたり、低圧側段部の過大水
圧上昇、振動、騒音、キヤビテーシヨンなどを伴
い易い運転状態となり問題となる。 In this way, a multi-stage hydraulic machine with movable guide vanes in the highest pressure stage and the lowest pressure stage has a more complex flow path shape than a single stage hydraulic machine, and has two sets of movable guide vanes. Therefore, during load adjustment control during steady operation, it is necessary to accurately adjust the opening degree of each movable guide vane. If this opening adjustment is not performed reliably, the ratio of the head that acts on the entire multi-stage hydraulic machine to the runners of each stage (head share) will be different and uneven, and each stage will differ from the reference point. Since it falls into an unstable hydraulic characteristic range, it causes a drop in hydraulic performance, an excessive rise in water pressure in the low-pressure side section, and an operational state that is prone to vibration, noise, cavitation, etc., which poses problems.
この問題を解決するために、本出願人は先に最
高圧段部の可動ガイドベーンを流量の制御指令に
応じて行なうと共に最低圧段部の可動ガイドベー
ンを最低圧段部出口側水圧と最高圧段部から最低
圧段部に至る中間部水圧との水圧差の制御指令に
応じて行なう運転制御方法を提供した（特開昭58
−140480号公報参照）。 In order to solve this problem, the applicant first moved the movable guide vanes in the highest pressure stage according to the flow rate control command, and also moved the movable guide vanes in the lowest pressure stage to match the water pressure on the outlet side of the lowest pressure stage. Provided an operation control method that is performed in response to a control command for the water pressure difference between the water pressure in the intermediate portion from the high pressure stage to the lowest pressure stage (Japanese Patent Laid-Open No. 58
-Refer to Publication No. 140480).
しかしながら、この先行技術によるときには最
低圧段部出口側水圧と返し通路の中間部水圧とを
検出しているために、水圧の変動による影響を受
けやすく、また、２カ所の圧力を検出して入力信
号として使用するために応答遅れが大きかつた。 However, since this prior art detects the water pressure on the outlet side of the lowest pressure stage part and the water pressure in the middle part of the return passage, it is susceptible to fluctuations in water pressure, and pressures at two locations are detected and input. Since it was used as a signal, there was a large response delay.
そこで、本発明の目的は、定常運転時に負荷調
整制御を行なう場合、負荷信号を入力して最高圧
段部と最低圧段部の可動ガイドベーンの開度を負
荷信号のみで制御することにより安定した運転状
態の下に、的確な負荷調整制御を実施できるよう
にした多段水力機械の運転制御方法を提供するこ
とにある。
Therefore, an object of the present invention is to input a load signal and control the opening degrees of the movable guide vanes in the highest pressure stage section and the lowest pressure stage section using only the load signal, thereby stabilizing the load adjustment control during steady operation. An object of the present invention is to provide a method for controlling the operation of a multi-stage hydraulic machine, which enables accurate load adjustment control under such operating conditions.
上記目的を達成するため、本発明は最高圧段部
から最低圧段部までの各段部にランナを備え、各
段部が返し通路によつて連絡され、かつ前記最高
圧段部と前記最低圧段部の各段部の入口側に水口
開度を調節する可動ガイドベーンを設けた多段水
力機械において；定常発電運転時に目標負荷への
調整制御を行なう場合、最高圧段部または最低圧
段部のいずれか一方の不動ガイドベーンの開度は
あらかじめ規定した流量とガイドベーン開度の相
対関係を満足する目標流量に相当する開度に制御
すると共に、他方の可動ガイドベーンの開度は前
記可動ガイドベーンとの相対開度関係を満たすよ
うな開度に調整制御を行なうようにしたことを特
徴とするものである。
In order to achieve the above object, the present invention includes a runner in each stage from the highest pressure stage to the lowest pressure stage, each stage is connected by a return passage, and the highest pressure stage and the lowest pressure stage are connected to each other by a return passage. In a multi-stage hydraulic machine equipped with a movable guide vane that adjusts the water port opening on the inlet side of each stage of the pressure stage; when performing adjustment control to the target load during steady power generation operation, the highest pressure stage or the lowest pressure stage The opening degree of one of the stationary guide vanes is controlled to an opening degree corresponding to a target flow rate that satisfies a predetermined relative relationship between the flow rate and the guide vane opening degree, and the opening degree of the other movable guide vane is controlled as described above. This is characterized in that the opening degree is adjusted and controlled to satisfy the relative opening relationship with the movable guide vane.
以下、フランシス形２段ポンプ水車を例にとつ
て本発明による多段水力機械の運転制御方法の一
実施例を図面を参照して説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for controlling the operation of a multi-stage hydraulic machine according to the present invention will be described below using a Francis type two-stage pump turbine as an example with reference to the drawings.
単一の水車主軸１の軸上には、高圧段ランナ２
と低圧段ランナ３とが軸方向の距離をおいて固着
されている。上記高圧段ランナ２は上カバー４お
よび下カバー５で包囲される一方、低圧段ランナ
３は上カバー６および下カバー７で包囲され、高
圧段ランナ室８および低圧段ランナ室９を構成し
ている。前記高圧段ランナ室８と低圧段ランナ室
９とは返し通路１０で連絡され、通路上には返し
羽根１１および水口開度を変えられる低圧段可動
ガイドベーン１２が設けられている。また高圧段
ランナ室８の外側にはうず巻ケーシング１３が配
置され、そのうず室１４と上記高圧段ランナ室８
とは連通され、うず室１４の入口は図示しない入
口弁を介して水圧鉄管に接続され、水圧鉄管は上
池に連絡している。さらにまた高圧段ランナ２の
外側には、水口開度を変えられる高圧段可動ガイ
ドベーン１５が設けられている。なお上記低圧段
ランナ室９には吸出し管１６が接続され、その下
流側は放水路と接続されて、放水路は下池と連絡
している。 On the shaft of the single water turbine main shaft 1, there is a high pressure stage runner 2.
and a low pressure stage runner 3 are fixedly spaced apart from each other in the axial direction. The high pressure stage runner 2 is surrounded by an upper cover 4 and a lower cover 5, while the low pressure stage runner 3 is surrounded by an upper cover 6 and a lower cover 7, forming a high pressure stage runner chamber 8 and a low pressure stage runner chamber 9. There is. The high-pressure stage runner chamber 8 and the low-pressure stage runner chamber 9 are connected by a return passage 10, and on the passage are provided return vanes 11 and a low-pressure stage movable guide vane 12 that can change the opening degree of the water port. Further, a spiral casing 13 is disposed outside the high pressure stage runner chamber 8, and the spiral casing 13 and the high pressure stage runner chamber 8 are connected to the spiral casing 13.
The inlet of the whirlpool chamber 14 is connected to a penstock via an inlet valve (not shown), and the penstock communicates with the upper pond. Furthermore, a high-pressure stage movable guide vane 15 is provided on the outside of the high-pressure stage runner 2 and can change the opening degree of the water port. A suction pipe 16 is connected to the low-pressure stage runner chamber 9, and its downstream side is connected to a waterway, which communicates with the lower pond.
次に上記した２段ポンプ水車における本発明に
よる運転制御方法の実施例について述べる。 Next, an embodiment of the operation control method according to the present invention for the above-mentioned two-stage pump turbine will be described.
第２図および第３図は定常運転下で負荷の調整
制御を行なう場合の実施例を示している。 FIGS. 2 and 3 show an embodiment in which load adjustment control is performed under steady-state operation.
先ず水位検出装置１７を使つて上池の水位と下
池の水位との間の水位差Hstを検出し、その信号
を演算制御装置１８に入力する。この演算制御装
置１８には、データ入力装置１９を介してあらか
じめ負荷Ｐとガイドベーン開度Ａとの関係を規定
したデータが記憶されている。この負荷Ｐとガイ
ドベーン開度Ａとの関係は、第４図に示したよう
に水位差Hstをパラメータとして水力性能模型試
験によつて求められたものであつて、目標負荷Pp
が設定されるとその目標負荷を実現するガイドベ
ーン開度Apが特定されるようになつている。そ
して、目標負荷Ppは、目標負荷入力装置２０から
の入力信号を演算制御装置１８に与えることによ
つて設定される。さらに演算制御装置１８によつ
て求められたガイドベーン開度Apを表わす出力
信号は高圧段ガイドベーン制御装置２１に与えら
れ、高圧段可動ガイドベーン１５の開度をApに
設定する。 First, the water level detection device 17 is used to detect the water level difference H st between the water level of the upper pond and the water level of the lower pond, and the signal thereof is input to the arithmetic and control device 18 . Data defining the relationship between the load P and the guide vane opening degree A is stored in advance in the arithmetic and control device 18 via the data input device 19. The relationship between the load P and the guide vane opening A is determined by a hydraulic performance model test using the water level difference H st as a parameter, as shown in Fig. 4, and is based on the target load P p
When is set, the guide vane opening degree A p that realizes the target load is specified. The target load P p is set by applying an input signal from the target load input device 20 to the arithmetic and control device 18 . Further, an output signal representing the guide vane opening degree A p determined by the arithmetic and control unit 18 is given to a high pressure stage guide vane control device 21 to set the opening degree of the high pressure stage movable guide vane 15 to A p .
このように、高圧段可動ガイドベーン１５の開
度が運転目標負荷Ppに対応するガイドベーン開度
Apとなるように制御すると、高圧段ランナ２と
低圧段ランナ３におけるガイドベーン開度が相対
的に異なつてくるので落差の分担割合が変化して
実流量が変化する。 In this way, the opening degree of the high pressure stage movable guide vane 15 is the guide vane opening degree corresponding to the operation target load P p .
When controlled so that A p is achieved, the guide vane opening degrees in the high-pressure stage runner 2 and the low-pressure stage runner 3 become relatively different, so the share of the head changes and the actual flow rate changes.
一方、低圧段可動ガイドベーン１２の開度制御
は、本発明によれば、高圧段可動ガイドベーン１
５の開度と低圧段可動ガイドベーン１２の開度が
一定の相対関係を満たしたときに水力特性上安定
した運転を行なうことができるという点に着目
し、この相対関係を満たすように低圧段可動ガイ
ドベーン１２の開度が制御される。 On the other hand, according to the present invention, the opening degree control of the low pressure stage movable guide vane 12 is performed using the high pressure stage movable guide vane 1.
Focusing on the fact that stable operation can be achieved in terms of hydraulic characteristics when the opening degree of 5 and the opening degree of the low pressure stage movable guide vane 12 satisfy a certain relative relationship, the low pressure stage is adjusted so as to satisfy this relative relationship. The opening degree of the movable guide vane 12 is controlled.
すなわち、高圧段可動ガイドベーン開度Ａと低
圧段可動ガイドベーン開度ａとの関係は、第５図
に示したように水位差Hstをパラメータとして水
力性能模型試験によつて求められる。したがつ
て、水位差が例えばHstlのときには、高圧段可動
ガイドベーンの開度がApのとき低圧段可動ガイ
ドベーンの開度がa0のときに水力特性上最も安定
した運転を行なうことができる。 That is, the relationship between the high-pressure stage movable guide vane opening degree A and the low-pressure stage movable guide vane opening degree a is determined by a hydraulic performance model test using the water level difference H st as a parameter, as shown in FIG. Therefore, when the water level difference is, for example, H stl , the most stable operation in terms of hydraulic characteristics is achieved when the opening degree of the high-pressure stage movable guide vane is A p and the opening degree of the low-pressure stage movable guide vane is a 0 . I can do it.
このような高圧段側のガイドベーン開度Ａと低
圧段側のガイドベーン開度ａとの相対関係をあら
かじめ求めておき、その結果を第３図において、
ガイドベーン開度関係入力装置２３を介して演算
制御装置１８に入力し記憶させておく。そして、
水位検出装置１７を使つて上池の水位と下池の水
位との間の水位差Hstを検出し、その信号を演算
制御装置１８に入力する。この演算制御装置１８
には、前述したように高圧段側のガイドベーン開
度Ａと低圧段側のガイドベーン開度ａとの相対関
係が記憶されているから、例えば水位差Hstlにお
ける高圧段可動ガイドベーン開度Apに対する低
圧段可動ガイドベーン開度a0が決定される。さら
に、演算制御装置１８によつて求められたガイド
ベーン開度a0を表わす主力信号は低圧段ガイドベ
ーン制御装置２２に与えられ、低圧段可動ガイド
ベーン１２の開度をa0に設定する。 The relative relationship between the guide vane opening degree A on the high-pressure stage side and the guide vane opening degree a on the low-pressure stage side is determined in advance, and the results are shown in Fig. 3.
It is input to the arithmetic and control unit 18 via the guide vane opening degree related input device 23 and stored. and,
The water level detection device 17 is used to detect the water level difference H st between the water level of the upper pond and the water level of the lower pond, and the signal thereof is input to the arithmetic and control device 18 . This arithmetic and control device 18
As mentioned above, since the relative relationship between the guide vane opening degree A on the high pressure stage side and the guide vane opening degree a on the low pressure stage side is stored, for example, the high pressure stage movable guide vane opening degree at the water level difference H stl . The low pressure stage movable guide vane opening degree a 0 with respect to A p is determined. Further, the main force signal representing the guide vane opening degree a 0 determined by the arithmetic and control device 18 is given to the low pressure stage guide vane control device 22 to set the opening degree of the low pressure stage movable guide vane 12 to a 0 .
このように目標負荷Ppに対応したガイドベーン
開度Apの制御指令を高圧段可動ガイドベーン１
５に伝えて開度制御を行なう一方、この高圧段可
動ガイドベーン１５の開度Apとの間に相対開度
関係を満たす開度a0を低圧段可動ガイドベーン１
２に伝えてその開度制御を行なうことにより所定
の目標負荷下で水力特性が安定した運転状態を実
現できる。 In this way, the control command for the guide vane opening A p corresponding to the target load P p is applied to the high pressure stage movable guide vane 1.
5 to control the opening, while the opening a 0 that satisfies the relative opening relationship with the opening A p of the high pressure stage movable guide vane 15 is transmitted to the low pressure stage movable guide vane 1.
2 and controls the opening degree thereof, it is possible to realize an operating state with stable hydraulic characteristics under a predetermined target load.
上記実施例においては、目標負荷に対応したガ
イドベーン開度の制御指令を高圧段可動ガイドベ
ーン１５に対して与えたが、これとは逆に上記負
荷開度制御指令を低圧段可動ガイドベーン１２に
対して与てえもよい。 In the above embodiment, a control command for the guide vane opening corresponding to the target load was given to the high pressure stage movable guide vane 15, but conversely, the load opening control command was given to the low pressure stage movable guide vane 12. You can also give it to
すなわち、水位検出装置１７によつて検出され
た運転水位例えばHstlと目標負荷Ppを表わす信号
を演算制御装置１８に入力し、水位差をパラメー
タとして決定される目標負荷Ppに対応するガイド
ベーン開度Apを決定し、このガイドベーン開度
Apに応じた制御信号を演算制御装置１８からガ
イドベーン制御装置２１に伝えて低圧段可動ガイ
ドベーン１２の開度制御を行なう。 That is, signals representing the operating water level, for example, H stl , detected by the water level detection device 17 and the target load P p are input to the arithmetic and control device 18, and a guide corresponding to the target load P p determined using the water level difference as a parameter is inputted to the arithmetic and control device 18. Determine the vane opening A p and use this guide vane opening
A control signal corresponding to A p is transmitted from the calculation control device 18 to the guide vane control device 21 to control the opening degree of the low pressure stage movable guide vane 12.
一方、高圧段可動ガイドベーン１５については
第３図に示したように、水位検出装置１７からの
水位検出信号Hstlを演算制御装置１８に入力する
一方、この水位差Hstl下における低圧段ガイドベ
ーン開度Apに対応する高圧段ガイドベーン開度
a0を演算し、高圧段のガイドベーン制御装置２２
を介して高圧段可動ガイドベーンの開度をa0に設
定すればよい。 On the other hand, as for the high pressure stage movable guide vane 15 , as shown in FIG . High pressure stage guide vane opening corresponding to vane opening A p
a 0 is calculated, and the guide vane control device 22 of the high pressure stage
The opening degree of the high-pressure stage movable guide vane can be set to a 0 via the .
以上の説明から明らかなように、本発明によれ
ば、所定の運転水位下における負荷信号に応じて
最高圧段または最低圧段のいずれか一方の可動ガ
イドベーンの開度を制御すると共に水力特性上安
定した運転を行なうことができる相対的開度関係
を満たすようなガイドベーン開度に他方の段の可
動ガイドベーンの開度を制御するようにしたか
ら、制御系内の信号の応答遅れなく負荷のみの信
号で最高圧段および最低圧段の可動ガイドベーン
の開度を制御して常に水力性能の最も優れた運転
を期待することができる、定常運転時の負荷調製
制御を行なう場合に問題となる振動、騒音、キヤ
ビテーシヨシ、異常な水圧変動などを伴なう不安
定な運転状態を回避して常に高性能運転を行なう
ことができる。
As is clear from the above description, according to the present invention, the opening degree of the movable guide vane of either the highest pressure stage or the lowest pressure stage is controlled according to the load signal under a predetermined operating water level, and the hydraulic characteristics Since the opening of the movable guide vane of the other stage is controlled to the guide vane opening that satisfies the relative opening relationship that allows for stable operation, there is no delay in response of signals in the control system. There is a problem when performing load adjustment control during steady operation, where the opening degree of the movable guide vanes of the highest and lowest pressure stages can be controlled using only the load signal, and operation with the best hydraulic performance can always be expected. It is possible to always perform high-performance operation by avoiding unstable operating conditions that are accompanied by vibrations, noise, cavitation, abnormal water pressure fluctuations, etc.
第１図は本発明を適用するフランシス形２段ポ
ンプ水車の縦断面図、第２図および第３図は定常
運転時における運転制御の構成を示したブロツク
図、第４図は目標負荷とガイドベーン開度との関
係を示した線図、第５図は２つの可動ガイドベー
ン間の相対開度関係を示した線図である。
２……高圧段ランナ、３……低圧段ランナ、１
０……返し通路、１２……低圧段可動ガイドベー
ン、１５……高圧段可動ガイドベーン、１７……
水位検出装置、１８……演算制御装置、２１，２
２……ガイドベーン制御装置、２３……ガイドベ
ーン開度関係入力装置。
Fig. 1 is a vertical cross-sectional view of a Francis type two-stage pump turbine to which the present invention is applied, Figs. 2 and 3 are block diagrams showing the configuration of operation control during steady operation, and Fig. 4 is a target load and guide. A diagram showing the relationship with the vane opening degree. FIG. 5 is a diagram showing the relative opening relationship between two movable guide vanes. 2...High pressure stage runner, 3...Low pressure stage runner, 1
0...Return passage, 12...Low pressure stage movable guide vane, 15...High pressure stage movable guide vane, 17...
Water level detection device, 18... Arithmetic control device, 21, 2
2... Guide vane control device, 23... Guide vane opening related input device.
Claims (1)
ンナを備え各段部が返し通路によつて連絡され、
かつ前記最高圧段部と前記最低圧段部の各段部の
入口側に水口開度を調節する可動ガイドベーンを
設けた多段水力機械において；定常発電運転時に
目標負荷への調整制御を行なう場合、前記最高圧
段部または最低圧段部のいずれか一方の可動ガイ
ドベーンは、所与の運転水位下で高性能運転が行
なえるようにあらかじめ規定された負荷とガイド
ベーン開度との相対関係を満足するような目標負
荷相当ガイドベーン開度に設定すると共に他方の
段部の可動ガイドベーンは、所与の運転水位下で
安定した水力性能を維持できる高圧段ガイドベー
ンの開度と低圧段ガイドベーンの開度との間の相
対的開度関係を満たすような開度に制御するよう
にしたことを特徴とする多段水力機械の運転制御
方法。1 Each step from the highest pressure step to the lowest pressure step is equipped with a runner, and each step is connected by a return passage.
In a multi-stage hydraulic machine in which a movable guide vane is provided on the inlet side of each of the highest pressure stage section and the lowest pressure stage section to adjust the opening degree of the water port; when performing adjustment control to a target load during steady power generation operation. , the movable guide vane in either the highest pressure stage section or the lowest pressure stage section has a predetermined relative relationship between the load and the guide vane opening so that high performance operation can be performed under a given operating water level. The movable guide vane on the other stage is set to the guide vane opening corresponding to the target load that satisfies A method for controlling the operation of a multi-stage hydraulic machine, characterized in that the opening is controlled to satisfy a relative opening relationship with the opening of a guide vane.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58042690A JPS59168276A (en) | 1983-03-15 | 1983-03-15 | Operation control of multistage hydraulic machine |
| US06/588,362 US4640664A (en) | 1983-03-15 | 1984-03-12 | Methods of controlling operation of multistage hydraulic machines |
| FR8403848A FR2542817B1 (en) | 1983-03-15 | 1984-03-13 | METHOD FOR CONTROLLING THE OPERATION OF MULTI-STAGE HYDRAULIC MACHINES |
| DE19843409340 DE3409340A1 (en) | 1983-03-15 | 1984-03-14 | METHOD FOR CONTROLLING THE OPERATION OF A MULTI-STAGE HYDRAULIC MACHINE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58042690A JPS59168276A (en) | 1983-03-15 | 1983-03-15 | Operation control of multistage hydraulic machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59168276A JPS59168276A (en) | 1984-09-21 |
| JPH0442548B2 true JPH0442548B2 (en) | 1992-07-13 |
Family
ID=12643030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58042690A Granted JPS59168276A (en) | 1983-03-15 | 1983-03-15 | Operation control of multistage hydraulic machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59168276A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58140480A (en) * | 1982-02-15 | 1983-08-20 | Toshiba Corp | Operation control of multistage hydraulic machine |
-
1983
- 1983-03-15 JP JP58042690A patent/JPS59168276A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59168276A (en) | 1984-09-21 |
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