JPS6020731A - Reactive cross current compensator - Google Patents
Reactive cross current compensatorInfo
- Publication number
- JPS6020731A JPS6020731A JP58128175A JP12817583A JPS6020731A JP S6020731 A JPS6020731 A JP S6020731A JP 58128175 A JP58128175 A JP 58128175A JP 12817583 A JP12817583 A JP 12817583A JP S6020731 A JPS6020731 A JP S6020731A
- Authority
- JP
- Japan
- Prior art keywords
- output
- active
- reactive power
- power
- reactive
- 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
Links
- 230000010354 integration Effects 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 101150003970 Avr1 gene Proteins 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Landscapes
- Supply And Distribution Of Alternating Current (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】
この発明は複数台の発電機を並列運転する場合における
無効横流補償装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reactive cross current compensator when a plurality of generators are operated in parallel.
この種、無効横流補償装置は複数台の発電機を並列運転
する際の各発電機の端子電圧および位相ケ制御するもの
でおる。この制御には発電機の各端子電圧が等しくなる
ように監視するとともにシステム全体としての力率に対
して各発電機の力率が進んでいるのか遅れているのかを
判定して操作することが行われる。しかし、従来は上記
制御において、システム全体に対しての監視と結びっけ
られることなく、各発電機の出力制御１個別に行うよう
になっているため、現に行っている発電機の台数ｌ増減
する場合や発電機が１台故障した場合等にその都度発電
機運転の指令値を変更しなけｎばならない。この指令値
は個々の発電機について行わねばならないため、その設
定変更が極めて％Ｗｉになる欠点がある。This type of reactive cross current compensator is used to control the terminal voltage and phase of each generator when a plurality of generators are operated in parallel. This control involves monitoring to ensure that the voltages at each terminal of the generator are equal, and determining whether the power factor of each generator is leading or lagging behind the power factor of the entire system. It will be done. However, conventionally, in the above control, the output control of each generator was performed individually, without being linked to the monitoring of the entire system. The command value for generator operation must be changed each time there is a problem or one generator breaks down. Since this command value must be set for each generator, there is a drawback that changing the setting becomes extremely difficult.
この発明は上記の欠点を除去するために、複数台の発電
機の有効、無効電力！検出し、こ几ら検出々カケ各別に
加算し、無効電力加算出力と、有効′醒力をその加算出
力で除算した出力とを乗算するとともに、有効電力加算
出力と、無効電力をその加算出力で除算した出力とを乗
算して得た発電機制御演算出力を、各発電機のＡＶＲ制
御装置およびガバナに与えて集中制御するようにしたの
で、発電機の台数の増減や故障時にも即座に設定変更が
できる無効横流補償装置を提供することを目的とする。This invention eliminates the above drawbacks by generating active and reactive power from multiple generators! Detect, add each detected chip separately, multiply the reactive power addition output by the output obtained by dividing the active power by the addition output, and add the active power addition output and the reactive power to the addition output. The generator control calculation output obtained by multiplying the output divided by An object of the present invention is to provide an invalid cross current compensator whose settings can be changed.
以下図面ン参照してこの発明の一実施例を説明する。An embodiment of the present invention will be described below with reference to the drawings.
第１図および第２図において、０１〜Ｇ３は発電機で、
こｎら発電機０１〜Ｇ、は並列運転される。各発電機Ｇ
、〜Ｇ３の出力側には変流器ＣＴヶ介して有効電力計か
らなる有効電力検出器Ｐ１〜Ｐ３と無効電力計からなる
無効電力検出器Ｑｌ〜Ｑ、！設ける。こｎら雨検出器Ｐ
、〜Ｐ、とＱ。In Figures 1 and 2, 01 to G3 are generators,
These generators 01 to G are operated in parallel. Each generator G
,~G3 are connected to active power detectors P1 to P3 consisting of active wattmeters through current transformers CT, and reactive power detectors Ql to Q consisting of reactive wattmeters via current transformers CT. establish. Rain detector P
, ~P, and Q.
〜Ｑ、の出力は第２図に詳細ン示す制御部ＣＮＴに入力
される。ＡＶＲ１〜ＡＶＲｓは自動電圧調整装置、ＧＯ
Ｖ、〜Ｇ’ＯＶ、はガバナ（透気調速機）で、これら装
置１ｔＡＶ Ｒ，〜Ａ、Ｖ Ｒ，とガバナＧＯＶ、〜Ｇ
ＯＶ３は前記制御部ＣＮＴによって劃−され、これによ
り発電機０１〜Ｇ、の力ＩＣ，Ｙ出力制御の一環として
制御する。The outputs of ~Q are input to a control unit CNT shown in detail in FIG. AVR1~AVRs are automatic voltage regulators, GO
V, ~G'OV, is a governor (permeable speed governor), and these devices 1tAV R, ~A, VR, and governor GOV, ~G
OV3 is controlled by the control unit CNT, thereby controlling it as part of the force IC and Y output control of the generators 01 to G.
次に前記１１Ｊ御部ＣＮＴの詳細ン第２図により述べる
。有効および無効電力、検出器Ｐ、〜Ｐ３およびＱ、〜
Ｑｓの各出力はアナログ−デジタル変換器（Ａ ／Ｄ
）によりデジタル信号に変換さｎたのちインターフェイ
ス（Ｉ １０ ） Ｙ介して各々積算される。ΣＰ１は
有効電力積算部、ΣＱ１は無効電力積算部である。こｎ
ら両積算部ΣＰｉ、ΣΩ１の出力は各発電機０１〜Ｇ３
０制御演算部Ｇ１ＣＮ〜Ｇ、ＣＮに入力される。制御演
算部Ｇ、ＣＮ−Ｇ、ＯＮは有効電力に比例した無効電力
の分担量Ｑ’ ｉと無効電力に比例した有効電力の分担
ｔ Ｐ’ ｉ Ｙ演算するもので、それぞｎの分担ｆＱ
’ｉ、Ｐ’１は無効および有効分担量演算部Ｑ’ １／
ｌ ＝ Ｑ’ ｓ ｊｌとｙ４〜ｐ１３りで演算される
。無効電力分担量演算部ｑ’ｓＱ〜ｑ’ｊｒは有効電力
ｐ１ｙ有効電力積算部ΣＰ１の出力で除算した除算部Ｄ
Ｉｉと、この除算部ＤＩｉの出力に無効電力積算部ΣＱ
１の出力を乗算した乗算部ＭＵｉから形成される。但し
、１＝１号機、２号機、３号機・・・・・・である。ま
た、有効電力分担量演算部ｐ’、ｌ１Ｉｒ−ｙ、１ｇは
無効電力Ｑ１を無効電力積算部ΣΩ１の出力で除算した
除算部ＤＩｉと、この除算部ＤＩｉの出力に有効電力積
算部ΣＰ１の出力音乗算した乗算部ＭＵｉから形成され
る。但し、１−１号機、２号機、３号機・・・・・・で
ある。Next, the details of the 11J control CNT will be described with reference to FIG. Active and reactive power, detectors P, ~P3 and Q, ~
Each output of Qs is connected to an analog-to-digital converter (A/D
) are converted into digital signals, and then integrated via an interface (I 10 )Y. ΣP1 is an active power integration section, and ΣQ1 is a reactive power integration section. Kon
The outputs of both integrating parts ΣPi and ΣΩ1 are output from each generator 01 to G3.
It is input to the 0 control calculation units G1CN to G and CN. The control calculation units G, CN-G, and ON calculate the share of reactive power Q' i proportional to active power and the share t P' i Y of active power proportional to reactive power, and each calculates the share fQ of n.
'i, P'1 is invalid and effective sharing calculation unit Q' 1/
It is calculated by l = Q' s jl and y4 to p13. The reactive power sharing calculation units q'sQ to q'jr are the dividing unit D that divides the active power p1y by the output of the active power integration unit ΣP1.
Ii, and a reactive power integration unit ΣQ is applied to the output of this division unit DIi.
It is formed from a multiplier unit MUi that multiplies the output of 1. However, 1 = No. 1 machine, No. 2 machine, No. 3 machine, etc. In addition, the active power sharing calculation units p', l1Ir-y, and 1g include a division unit DIi that divides the reactive power Q1 by the output of the reactive power integration unit ΣΩ1, and the output of the active power integration unit ΣP1 to the output of this division unit DIi. It is formed from a multiplier unit MUi that performs sound multiplication. However, 1-1 machine, 2nd machine, 3rd machine...
前記制御演算部Ｇ１ＣＩＪ−Ｇ、ＯＮの各出力は各自動
電圧調整装置Ａ’ＶＲ，〜ＡＶＲ，およびガバナＧＯＶ
、〜ＧＯＶ、に供給される。Each output of the control calculation unit G1CIJ-G, ON is connected to each automatic voltage regulator A'VR, ~AVR, and governor GOV.
, ~GOV,.
次に上記実施例の動作について述べる。各発電秒Ｇ、〜
Ｇ、が並列運転さｎでいるとする。このときの各発電機
Ｇ、〜Ｇ、の有効電力はその検出器Ｐ１〜ｐ、からアナ
ログ−デジタル変換器（Ａ／Ｄ）、インターフェイス（
ｒｌｏ）Ｙ介して有効電力積算部ΣＰ１に入力される。Next, the operation of the above embodiment will be described. Each power generation second G, ~
Suppose that G is operated in parallel n. At this time, the active power of each generator G, ~G, is calculated from its detector P1~p, analog-to-digital converter (A/D), interface (
rlo) Y to the active power integration unit ΣP1.
一方、無効電力もその検出器Ｑ１〜Ｑ３からアナログ−
デジタル変換器（Ａ／Ｄ）、インターフェイス（Ｉｌｏ
）を介して無効′醒力債檜一部ΣＱ１に入力される。両
Ｐｌｉ算部ΣＰｉ。On the other hand, the reactive power is also analog -
Digital converter (A/D), interface (Ilo
) is input into ΣQ1. Both Pli calculation parts ΣPi.
ΣＱ１の出力は１ｔｉｌＪ御演算部Ｇ１ＣＮ−ＧｓＣＭ
Ｋ供給さ扛る。１ｌｊｌＪ御演算部Ｇ、ＣＮ−Ｇ５Ｃ
Ｎには有効および無効電力の出力も供給され、有効およ
び無効電力分担量ｐ／ ｉ 、 Ｑ／ Ｌが演算される
。ここで、１）１１記分担−腋Ｐ’ｉ、Ｑ’ｉの計算式
７次に示す。The output of ΣQ1 is 1tilJ control calculation unit G1CN-GsCM
K is supplied. 1ljlJ operation unit G, CN-G5C
Active and reactive power outputs are also supplied to N, and active and reactive power sharing amounts p/i, Q/L are calculated. Here, 1) 11 Calculation formula for armpits P'i and Q'i (7) is shown below.
ｉ
Ｑ’ｉ二ΣＱｉＸ□ ・・・・・・ ｉｌｌΣＰ１
１
ｐｌｘ二ΣＰＩＸ□ ・・・・・・（２）ΣＱ１
前記分担量Ｑ’ｉ、Ｐ’ｉは上記（１）式、（２）式、
すなわち、第２図に示す除算部ＤＩｉと乗算部ＭＵｉに
より演算され、その演算出力は自動電圧調整装置ＡＶＲ
１〜ＡＶＲ，およびガバナＧＣ）Ｖ、 〜ＧＯＶ３に供
給さｎて、発電機Ｇ、〜Ｇ、の並列運転が行われる。i Q'i2ΣQiX□ ... illΣP1 1 plx2ΣPIX□ ...... (2) ΣQ1 The above-mentioned sharing amounts Q'i and P'i are the above equations (1) and (2) ,
That is, the calculation is performed by the division unit DIi and the multiplication unit MUi shown in FIG. 2, and the calculation output is sent to the automatic voltage regulator AVR.
1~AVR, and governors GC)V, ~GOV3, and the generators G, ~G, are operated in parallel.
上記のように各発電機Ｇ、〜Ｇ、ケ制御すわば、有効電
力の負担は各運転モードに従って割り当てら７′Ｌ″′
Ｃ制御さｎるとともに無効電力については無効横流補償
の立場で、各発電機Ｇ、〜Ｇ、の刃部が等しくなるよう
に無効電力が分担される。なおり率は有効電力Ｐ、無効
電力Ｑに対してｐ／ｆ習Ｔ起で示さｎるが、簡易的にｑ
／ｐで表わされる。Ｑ／Ｐが一定であれば、Ｐ、Ｑの値
にかかわらず力部は一定の値となる。つまり、有効電力
に比例した無効電力を上記のように分担させるならば、
各発電機の刃部はすべて全体としての六本に等しく制御
さｎる。As mentioned above, each generator G, ~G, is controlled, and the burden of active power is allocated according to each operation mode.
In addition to C control, reactive power is shared so that the blades of each generator G, ~G, are equal from the viewpoint of reactive cross current compensation. The normalization rate is expressed as p/f x T with respect to active power P and reactive power Q, but it is simply expressed as q
/p. If Q/P is constant, the force part will have a constant value regardless of the values of P and Q. In other words, if the reactive power proportional to the active power is shared as described above,
The blades of each generator are all controlled to a total of six blades.
このことから発電機を数台増設したり、あるいは故障の
発電機があったときでも、極め簡単に並行還御でき今。Because of this, even if you add several generators or have a malfunctioning generator, you can now operate them in parallel very easily.
こルは従来、位相ずれを相対的に比較し℃制御する手段
であったため、設定値の変更の際、操作が面倒で系統に
投入させる並列運転させるまで長時間を必要としたのが
、この発明では積算部ΣＰｉ、ΣＱ１の値を変更させる
だけ行えるので並列運転させるまで短時間にできる。Conventionally, this was a means to relatively compare phase shifts and control degrees Celsius, so when changing the set value, it was cumbersome to operate and required a long time to run in parallel. In the invention, since the values of the integrating sections ΣPi and ΣQ1 can only be changed, it can be done in a short time until parallel operation is started.
以上述べたように、この発明によｎば、有効電力および
無効イカ積算部の出力と有効および無効電力とン制御演
算部で演算させて、発電機を制御させるようにしたので
、発電機の台数の増減や故障時にも即座に設定変更がで
き、かつ無効横流も補償できる等の効果がある。As described above, according to the present invention, the output of the active power and reactive power integration section and the active and reactive power are calculated in the control calculation section to control the generator. It has the advantage of being able to instantly change settings even when the number of units increases or decreases, or when a failure occurs, as well as being able to compensate for invalid cross currents.
第１図および第２図はこの発明の一実施例ケ示すもので
、第１図は概略的な構成図、第２図はこの発明の要部の
ブロック図である。
ＰｌからＰ、・・・有効電力検出器、Ｑ、から。３・・
・無効電力検出器、ΣＰｉ、ΣＱ１・・・有効および無
効電力積算部、Ｐ’ｉ・・・有効電力分担量演算部、Ｑ
’ ｉ・・・無効電力分担量演算部、Ｄｌｌ・・・除算
部、ＭＵｉ・・・乗算部、Ｇ１から０３・・・発電機、
ＡＶＲ。
からＡＶＲ，・・・自動電圧ｆＡ整装置、ＧＯ’Ｖ、か
らＧＯＶ、・・・ガバナ。1 and 2 show one embodiment of the present invention, with FIG. 1 being a schematic configuration diagram and FIG. 2 being a block diagram of essential parts of the invention. From Pl to P... active power detector, Q. 3...
・Reactive power detector, ΣPi, ΣQ1...active and reactive power integration section, P'i...active power sharing calculation section, Q
'i... Reactive power sharing calculation unit, Dll... Division unit, MUi... Multiplication unit, G1 to 03... Generator,
AVR. From AVR, ... automatic voltage fA adjustment device, GO'V, from GOV, ... governor.
Claims (1)
機の有効および無効電力を各別に検出する初政の検出器
と、これら各検出部の出力を有効および無効電力毎に各
別に積算する有効および無効電力積算部と、前記有効電
力の検出々力を有効電力積算部の出力で除算し、その除
算出力に無効電力積算部の出カケ乗算して得た無効電力
分担量演算部および前記無効電力の検出々力を無効電力
積算部の出力で除算し、その除算出力に有効電力積算部
の出力を乗算して得た有効電力分担量演算部からなる発
電機制御演算部とｔ備え、前記発電機制御演算部の出力
を並列運転される各発電機の自動電圧調節装置およびガ
バナへ供給したことな特徴とする無効横流補償装置。il+ Multiple generators operated in parallel, a Hatsumasa detector that separately detects the active and reactive power of these generators, and an effective detector that integrates the output of each of these detectors separately for active and reactive power. and a reactive power integration unit, and a reactive power sharing calculation unit that divides the detected force of the active power by the output of the active power integration unit, and multiplies the divided output by the output of the reactive power integration unit; a generator control calculation section consisting of an active power sharing calculation section obtained by dividing the detected power of the electric power by the output of the reactive power integration section and multiplying the divided output by the output of the active power integration section; A reactive cross current compensator characterized in that the output of a generator control calculation unit is supplied to an automatic voltage regulator and a governor of each generator operated in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58128175A JPS6020731A (en) | 1983-07-14 | 1983-07-14 | Reactive cross current compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58128175A JPS6020731A (en) | 1983-07-14 | 1983-07-14 | Reactive cross current compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6020731A true JPS6020731A (en) | 1985-02-02 |
Family
ID=14978264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58128175A Pending JPS6020731A (en) | 1983-07-14 | 1983-07-14 | Reactive cross current compensator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6020731A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6268025A (en) * | 1985-09-17 | 1987-03-27 | 三菱電機株式会社 | Load sharing device |
| JP2007166897A (en) * | 2005-12-16 | 2007-06-28 | General Electric Co <Ge> | Power balancing of multiple synchronous generators. |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49128209A (en) * | 1973-04-13 | 1974-12-09 | ||
| JPS5613120A (en) * | 1979-07-13 | 1981-02-09 | Torataro Kusaka | Cap seal molding machine |
-
1983
- 1983-07-14 JP JP58128175A patent/JPS6020731A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49128209A (en) * | 1973-04-13 | 1974-12-09 | ||
| JPS5613120A (en) * | 1979-07-13 | 1981-02-09 | Torataro Kusaka | Cap seal molding machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6268025A (en) * | 1985-09-17 | 1987-03-27 | 三菱電機株式会社 | Load sharing device |
| JP2007166897A (en) * | 2005-12-16 | 2007-06-28 | General Electric Co <Ge> | Power balancing of multiple synchronous generators. |
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