JPH0626080Y2 - Autonomous operation control device - Google Patents
Autonomous operation control deviceInfo
- Publication number
- JPH0626080Y2 JPH0626080Y2 JP1987127930U JP12793087U JPH0626080Y2 JP H0626080 Y2 JPH0626080 Y2 JP H0626080Y2 JP 1987127930 U JP1987127930 U JP 1987127930U JP 12793087 U JP12793087 U JP 12793087U JP H0626080 Y2 JPH0626080 Y2 JP H0626080Y2
- Authority
- JP
- Japan
- Prior art keywords
- water level
- output
- unit
- generator
- switching
- 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
Landscapes
- Control Of Eletrric Generators (AREA)
Description
【考案の詳細な説明】 Ａ．産業上の利用分野 この考案は流れ込み式の水力発電所における自流運転制
御装置に関する。Detailed Description of the Invention A. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a free-running operation control device for a flow-in type hydroelectric power plant.
Ｂ．考案の概要 この考案は調整池の水位を自動調整する自流運転制御装
置において、 プログラム運転等から自流運転へ切替わった時点の調整
池水位と、その時の発電機出力に応じた水位を調定率で
運転を行うことにより、 発電機出力を調整池の水位変化に追従させることができ
るようにしたものである。B. This invention is a self-current operation control device that automatically adjusts the water level of a regulating pond.The water level of the regulating pond at the time of switching from program operation to self-current operation and the water level according to the generator output at that time are adjusted at a regulation rate. By operating it, the generator output can be made to follow the water level change in the regulating pond.
Ｃ．従来の技術 第３図は流れ込み式の水力発電所の概略構成図で、この
種水力発電所では水系の効率的運用及び発電所の自動制
御運転は上流発電所３１の運転情報データをコンピュー
タに取込んでプログラム運転で行っている。しかし、そ
のプログラム運転に必要な情報が得られない場合、また
は操作選択等で自流運転という自動制御運転を行う手段
がある。ここで、自流運転とは調整池３２への流入量Ｑ
ｉに応じて流出量Ｑｏ、つまり発電機出力を制御して調
整池３２の水位を一定に保つ運転方式である。このよう
に調整池３２の水位を一定に保つようにしないとＱｉと
Ｑｏの関係から調整池３２の水位が積分的に変化し、つ
いにはあふれてしまうおそれがある。C. 2. Description of the Related Art FIG. 3 is a schematic configuration diagram of a run-of-river type hydroelectric power plant. In this kind of hydroelectric power plant, the operation information data of the upstream power plant 31 is collected by a computer for efficient operation of the water system and automatic control of the power plant. The program is run intricately. However, there is a means for performing automatic control operation called free-flow operation when the information necessary for the program operation cannot be obtained or when operation is selected. Here, the self-current operation is the inflow amount Q into the regulating pond 32.
This is an operation method in which the outflow amount Q o , that is, the generator output is controlled according to i to keep the water level in the regulating pond 32 constant. If the water level in the regulating pond 32 is not kept constant in this way, the water level in the regulating pond 32 may change in an integrated manner due to the relationship between Q i and Q o , and eventually overflow.
なお、第３図中、Ｇは発電機である。In FIG. 3, G is a generator.
Ｄ．考案が解決しようとする問題点 流れ込み式の水力発電所においてＱｉとＱｏの関係（自
流量）は第４図に示すように算出していた。第４図にお
いて、４１は調整池水位Ｈと調整池貯水量Ｖとの関係を
示す特性ブロツク、４２は発電機出力Ｐと発電機流量Ｑ
との関係を示す特性ブロツクで、両特性ブロツク４１，
４２の出力は自流量算出ブロツク４３に供給される。自
流量算出ブロツク４３は（Ｖｏ−ＶＴ／Ｔ）＋（１／Ｔ
×ΣＱ）の演算を行って自流量Ｑ１と発電機出力指令値
Ｐ１とからなる特性ブロツク４４を得る。なお、Ｖｏは
調整池貯水量の前回のサンプリング値、ＶＴは調整池貯
水量の今回のサンプリング値、Ｔはサンプリング時間間
隔、Ｑは発電機流量である。D. Problems to be Solved by the Invention In a run-of-river type hydroelectric power plant, the relationship between Q i and Q o (self-flow rate) was calculated as shown in Fig. 4. In FIG. 4, 41 is a characteristic block showing the relationship between the regulating reservoir water level H and the regulating reservoir water storage amount V, and 42 is the generator output P and the generator flow rate Q.
A characteristic block showing the relationship with both characteristic blocks 41,
The output of 42 is supplied to the own flow rate calculation block 43. The own flow rate calculation block 43 is (V o −V T / T) + (1 / T
× ΣQ) is calculated to obtain a characteristic block 44 composed of the own flow rate Q 1 and the generator output command value P 1 . Incidentally, the last sample value of V o is balancing reservoir storage volume, V T is the current sampling value of the adjustment pond water storage, T is the sampling time interval, Q is the generator flow.
上記のように流れ込み式の水力発電所では第４図に示す
ように、自流量Ｑ１に応じた発電機出力指令値Ｐ１を設
定出力値として発電機の負荷制御運転を行っていた。こ
の運転制御であると自流量の算出手段に積分遅れがある
ため、水位変化に即応出来なくなって自流運転制御が不
可能となる問題点を持つている。As shown in FIG. 4 is a hydroelectric power plant type flow as described above, were subjected to load control operation of the generator the generator output command value P 1 corresponding to the own flow Q 1 as the set output value. This operation control has a problem that the self-flow operation control cannot be performed because the self-flow rate calculation means has an integration delay and cannot immediately respond to the water level change.
Ｅ．問題点を解決するための手段 この考案は自流運転に切替わった時点における調整池水
位を記憶する記憶部と、現在の調整池水位が入力される
とともに、この水位から記憶部に入力された調整池水位
を減算する減算部と、発電機の１００％出力値を予め設
定された水位調定率で除算する除算部と、この除算部の
出力と前記減算部の出力とが入力され、両出力を乗算す
る乗算部と、この乗算部の出力と自流運転に切替わった
時点の発電機出力とが入力され、両入力が加えられて出
力に発電機への出力指令値を得る加算部とからなるもの
である。E. MEANS FOR SOLVING PROBLEMS The present invention is directed to a storage unit that stores the regulating pond water level at the time of switching to free-running operation, a current regulating pond water level is input, and an adjustment input from this water level to the storage unit. The subtraction unit that subtracts the pond water level, the division unit that divides the 100% output value of the generator by the preset water level adjustment rate, the output of this division unit and the output of the subtraction unit are input, and both outputs are input. It is composed of a multiplication unit for multiplying, an output of this multiplication unit and an output of the generator at the time of switching to free-flow operation, and an addition unit for adding both inputs and obtaining an output command value to the generator at the output. It is a thing.
Ｆ．作用 現在の調整池水位ＨＩ記憶部に記憶された自流運転に切
替わった時点の水位Ｈ０、発電機の１００％出力値、水
位調定率α及び自流運転に切替わった時点の発電機出力
Ｐ０から発電機への出力指令値ＰＩを次式によって求め
る。F. Action Current regulating pond water level H I Water level H 0 at the time of switching to free-flow operation stored in the storage unit, 100% output value of the generator, water level regulation rate α, and generator output at the time of switching to free-flow operation The output command value P I from P 0 to the generator is determined by the following equation.
ＰＩ＝（ＨＩ−Ｈ０）×100％出力値／α＋Ｐ０〔Ｋ
Ｗ〕発電機への出力指令値ＰＩをプログラム運転から自
流運転へ切替わった時点の調整水位と、その時の発電機
出力に応じた水位調定率から得るようにしたので、水位
変化に追従した制御が可能となる。P I = (H I −H 0 ) × 100% output value / α + P 0 [K
W] Since the output command value P I to the generator is obtained from the adjusted water level at the time of switching from the program operation to the free-flow operation and the water level adjustment rate according to the generator output at that time, the water level change is followed. It becomes possible to control.
Ｇ．実施例 以下図面を参照してこの考案の一実施例を説明する。G. Embodiment An embodiment of the present invention will be described below with reference to the drawings.
第１図において、１は調整池で、この調整池１の水位を
フロート等で検出して記憶部２と減算部３に与える。記
憶部２にはプログラム運転等から自流運転に切替わった
時点の水位Ｈ０を記憶するために切換信号が与えられ
る。切替わった時点の水位Ｈ０は記憶部２から減算部３
に入力される。In FIG. 1, reference numeral 1 denotes a regulating pond, which detects the water level of the regulating pond 1 by a float or the like and gives it to the storage unit 2 and the subtraction unit 3. A switching signal is given to the storage unit 2 in order to store the water level H 0 at the time of switching from the program operation or the like to the free flowing operation. The water level H 0 at the time of switching is calculated from the storage unit 2 to the subtraction unit 3
Entered in.
減算部３は調整池１の現在の水位ＨＩから記憶部２から
入力された水位Ｈｏを減算（ＨＩ／Ｈ０）して入力する
もので、その減算出力は乗算部４の第１入力に供給され
る。乗算部４の第２入力には発電機の１００％出力値を
第２図に示す水位調定率αで除算した値が供給される。
５は水位調定率αが記憶される水位調定率記憶部、６は
除算部で、この除算部６により１００％出力値とαとの
除算が行われる。乗算部４は水位（ＨＩ−Ｈ０）の値と
（１００％出力値／α）の値を乗算し、その乗算出力が
自流運転に切替わった時点の発電機出力Ｐ０と加算部７
で加算される。Subtracting unit 3 subtracts the water level H o inputted from the storage unit 2 from the current water level H I of balancing reservoir 1 (H I / H 0) to one that inputs, the first subtraction output multiplier section 4 Supplied on input. A value obtained by dividing the 100% output value of the generator by the water level adjustment rate α shown in FIG. 2 is supplied to the second input of the multiplication unit 4.
Reference numeral 5 is a water level adjustment rate storage section for storing the water level adjustment rate α, and 6 is a division section. The division section 6 divides the 100% output value by α. Multiplying unit 4 is the water level (H I -H 0) value of the multiplied value (100% output value / alpha), a generator output P 0 of the time the product output is switched to the run-of-river operation adding unit 7
Is added in.
次に上記実施例の動作を述べる。まず、第２図に示す発
電機出力−調整池水位特性図から水位調定率αを記憶部
５に記憶させる。この記憶部５のαを除算部６に与え、
この除算部６で発電機の１００％出力値を水位調定率α
で除算させてその出力を乗算部４に与えておく。ここで
水力発電所の発電機の運転をプログラム運転から自流運
転に切替える。この自流運転時に調整池水位が第２図に
示すＨ０からＨＩに変化したとき、発電機出力指令値は
次のように求められる。切替時点の水位Ｈ０は記憶部２
が記憶していて、この水位Ｈ０は減算部３に入力されて
いる。減算部３には水位がＨ０からＨＩに変化したとき
の値（現在の水位）が入力され、（ＨＩ−Ｈ０）の減算
が行われる。この減算出力が乗算部４に入力され、ここ
で（ＨＩ−Ｈ０）と１００％出力値／αの乗算が行われ
る。この乗算出力に自流運転に切替わった時点の発電機
出力Ｐ０を加算することによって、水位がＨ０からＨＩ
に変化したときの発電機への出力指令値ＰＩを求めるこ
とができる。Next, the operation of the above embodiment will be described. First, the water level regulation rate α is stored in the storage unit 5 from the generator output-adjustment pond water level characteristic diagram shown in FIG. The α of the storage unit 5 is given to the division unit 6,
In this dividing unit 6, the 100% output value of the generator is converted into the water level adjustment rate α.
And the output is given to the multiplication unit 4. Here, the operation of the generator of the hydropower station is switched from program operation to free-flow operation. When the regulating pond water level changes from H 0 to H I shown in FIG. 2 during this self-flow operation, the generator output command value is obtained as follows. The water level H 0 at the time of switching is the storage unit 2
Is stored, and this water level H 0 is input to the subtraction unit 3. The subtraction unit 3 water level is input value when changed from H 0 to H I (current level), carried out the subtraction of (H I -H 0). The subtraction output is input to the multiplier 4, wherein (H I -H 0) as 100% output value / alpha multiplication is performed. By adding the generator output P 0 at the time of switching to free-flow operation to this multiplication output, the water level changes from H 0 to H I
It is possible to obtain the output command value P I to the generator when it changes to.
Ｈ．考案の効果 以上述べたように、この考案によれば、プログラム運転
等から自流運転へ切替わった時点の調整池水位と、その
時の発電機出力に応じた水位調定率で運転を行うように
したので、調整池水位の変化に追従して運転できるとと
もに自流運転への切替の際の発電機出力指令値に変化が
ないため円滑に切替えられる利点がある。H. Effects of the Invention As described above, according to this invention, the operation is performed at the water level of the regulating pond at the time of switching from the program operation to the self-current operation and the water level adjustment rate according to the generator output at that time. Therefore, there is an advantage that the operation can be performed following the change of the water level of the regulating pond and that the generator output command value at the time of switching to the self-current operation does not change, so that the switching can be performed smoothly.
第１図はこの考案の一実施例を示すブロック図、第２図
はこの実施例の動作を述べるための特性図、第３図は流
れ込み式の水力発電所の概略構成図、第４図は従来の自
流量算出手段を示すブロック図である。 １…調整池、２…記憶部、３…減算部、４…乗算部、５
…水位調定率記憶部、６…除算部、７…加算部。FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a characteristic diagram for explaining the operation of this embodiment, FIG. 3 is a schematic configuration diagram of a flow-type hydroelectric power plant, and FIG. It is a block diagram which shows the conventional self-flow rate calculation means. 1 ... adjusting pond, 2 ... storage unit, 3 ... subtraction unit, 4 ... multiplication unit, 5
... water level adjustment rate storage unit, 6 ... division unit, 7 ... addition unit.
Claims (1)
水位を記憶する記憶部と、現在の調整池水位が入力され
るとともにこの水位から記憶部に入力された調整池水位
を減算する減算部と、発電機の１００％出力値を予め設
定された水位調定率で除算する除算部と、この除算部の
出力と前記減算部の出力とが入力され、両出力を乗算す
る乗算部と、この乗算部の出力と自流運転に切替わった
時点の発電機出力とが入力され、両入力が加えられて出
力に発電機への出力指令値を得る加算部とからなる自流
運転制御装置。1. A storage unit for storing a regulating pond water level at the time of switching to free-flowing operation, and a subtracting unit for inputting a current regulating pond water level and subtracting the regulating pond water level inputted in the storing unit from this water level. A division unit for dividing the 100% output value of the generator by a preset water level adjustment rate; a multiplication unit for inputting the output of the division unit and the output of the subtraction unit and multiplying both outputs; A free-flow operation control device comprising: an output of the multiplication section and an output of the generator at the time of switching to the free-flow operation, and an addition section for adding both inputs and obtaining an output command value to the generator at the output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987127930U JPH0626080Y2 (en) | 1987-08-22 | 1987-08-22 | Autonomous operation control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987127930U JPH0626080Y2 (en) | 1987-08-22 | 1987-08-22 | Autonomous operation control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6434898U JPS6434898U (en) | 1989-03-03 |
| JPH0626080Y2 true JPH0626080Y2 (en) | 1994-07-06 |
Family
ID=31380804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987127930U Expired - Lifetime JPH0626080Y2 (en) | 1987-08-22 | 1987-08-22 | Autonomous operation control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0626080Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5537583A (en) * | 1978-09-11 | 1980-03-15 | Toshiba Corp | Water-level adjusting device |
-
1987
- 1987-08-22 JP JP1987127930U patent/JPH0626080Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5537583A (en) * | 1978-09-11 | 1980-03-15 | Toshiba Corp | Water-level adjusting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6434898U (en) | 1989-03-03 |
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