JPH02262848A - Linked power generating system - Google Patents
Linked power generating systemInfo
- Publication number
- JPH02262848A JPH02262848A JP1046033A JP4603389A JPH02262848A JP H02262848 A JPH02262848 A JP H02262848A JP 1046033 A JP1046033 A JP 1046033A JP 4603389 A JP4603389 A JP 4603389A JP H02262848 A JPH02262848 A JP H02262848A
- Authority
- JP
- Japan
- Prior art keywords
- power
- received
- constant
- received power
- regulator
- 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
- 238000010248 power generation Methods 0.000 claims description 16
- 230000001360 synchronised effect Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
この発明は、電力会社の電力系統と発電設備とが並列運
転される電力供給設備に用いて好適な系統連系された発
電設備に関する。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to grid-connected power generation equipment suitable for use in power supply equipment in which the power system of a power company and power generation equipment are operated in parallel.
「従来の技術」
系統連系された発電設備では、電動機、電熱器などの複
数の負荷からなる負荷設備が設けられている。これらの
負荷は、運転されたり停止されたーリしている。ここで
、電力会社からの受電電力より大きい容量の負荷の運転
が停止されると、負荷設備による消費電力か激減する。"Prior Art" A grid-connected power generation facility is provided with load equipment consisting of a plurality of loads such as an electric motor and an electric heater. These loads are activated and deactivated. Here, when the operation of a load whose capacity is larger than the power received from the electric power company is stopped, the power consumption by the load equipment is drastically reduced.
この場合、発電機が一定電力を発電していると、上記激
減した消費電力分、受電電力が激減して負に振れる。さ
らに、発電機の発電電力が消費電力を上回るため、当該
発電電力が受電系統側に逆潮流する事態か生じる。In this case, if the generator is generating a constant amount of power, the received power will be drastically reduced and become negative by the amount of the drastically reduced power consumption. Furthermore, since the power generated by the generator exceeds the power consumption, a situation may arise in which the generated power flows backward to the power receiving system.
この逆潮流の発生を防止するため、系統連系された発電
設備では、受電電カ一定制御および全電電カ一定制御を
並行して行っている。第３図は、これら２つの制御を説
明するための制御パターン図である。この図において、
受？ｌｉ電カ一定制御は、時刻ｔ。〜時刻ｔ３２時刻ｔ
、〜時刻ｔ、に示す全体の負荷が小さい場合に行われ、
発Ｎ電力を負荷変動に合わせて変化させ、受電電力を一
定に保つ方式である。また、全電電カ一定制御は、時刻
［１〜時刻む、に示す全体の負荷が大きい場合に行われ
、受電電力を負荷変動に合わせて変化させ、発電電力を
一定に保つ方式である。In order to prevent the occurrence of this reverse power flow, grid-connected power generation equipment performs constant received power control and constant total power control in parallel. FIG. 3 is a control pattern diagram for explaining these two types of control. In this diagram,
Receiving? Li power constant control is performed at time t. ~Time t32 Time t
, to time t, when the overall load is small,
This method changes the generated power according to load fluctuations and keeps the received power constant. Further, the total power constant control is performed when the overall load shown at time [1 to time M] is large, and is a method in which the received power is changed in accordance with load fluctuations and the generated power is kept constant.
「発明が解決しようとする課題」
ところで、上述した従来の系統連系された発電設備では
、受電型カ一定制御か行われている領域において負荷変
動が激しい場合、負荷の変動につられて受電電力が激変
する（第３図、参照）。このため一定の受Ｎ、電力を得
るには、激変する受電電力の変化に発電電力を追従させ
なくてはならない。したがって、同系統連系された発電
設備では、発電機の安定な運転か困難になるという問題
を生じた。``Problems to be Solved by the Invention'' By the way, in the above-mentioned conventional grid-connected power generating equipment, when there are severe load fluctuations in an area where constant power receiving type control is performed, the received power is reduced due to load fluctuations. changes dramatically (see Figure 3). Therefore, in order to obtain constant received N and power, it is necessary to make the generated power follow the drastic changes in the received power. Therefore, in power generation equipment connected to the same grid, a problem arose in that it became difficult to operate the generator stably.
この発明は、上述の問題点に鑑みてなされたもので、受
ＩＸ電力の激変による発電機の制御の乱れを防止できる
系統連系された発電設備を提供することを目的としてい
る。The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a grid-connected power generation facility that can prevent disturbances in generator control due to drastic changes in received IX power.
「課題を解決するための手段」
このような問題点を解決するために、この発明では電力
トランスデューサおよび自動電力調整器から構成され、
電力会社からの受電電力を一定にする受電型カ一定制御
回路を有する系統連系された発電設備において、前記電
力計と前記自動電力調整器との間に介挿されるフィルタ
回路を具備するとともに、前記フィルタ回路をローパス
フィルタとして構成し、当該フィルタ回路の遮断周波数
を前記受電電力の変動成分の周波数より低い値に設定し
たことを特徴とする。"Means for Solving the Problem" In order to solve such problems, the present invention comprises a power transducer and an automatic power regulator,
In a grid-connected power generation facility having a power receiving type power constant control circuit that keeps power received from a power company constant, the power generation equipment is provided with a filter circuit interposed between the wattmeter and the automatic power regulator, The filter circuit is configured as a low-pass filter, and the cutoff frequency of the filter circuit is set to a value lower than the frequency of the fluctuation component of the received power.
１作用 」
電力トランスデューサによって検出した受電電力をフィ
ルタ回路に供給し、このフィルタ回路によって当該受電
電力の変動成分を除去する。変動成分が除去された受電
電力は、自動電力調整器に供給される。この自動電力調
整器は、供給された受電電力に基づいて発電機の出力を
一定にするよう制御する。1 Effect: The received power detected by the power transducer is supplied to the filter circuit, and the filter circuit removes the fluctuation component of the received power. The received power from which the fluctuation component has been removed is supplied to an automatic power regulator. This automatic power regulator controls the output of the generator to be constant based on the supplied received power.
「実施例」
次に図面を参照してこの発明の実施例について説明する
。"Embodiments" Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例の構成を示すブロック図であ
る。この図において、■は同期発電機であり、ディーゼ
ルエンジン２によって運転される。FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. In this figure, ■ is a synchronous generator, which is operated by a diesel engine 2.
３はガバナーであり、ディーゼルエンジン２の燃料流入
量を調節して回転数または出力を制御する調節器である
。同期発電機１からの発電電力は、遮断器４を介して出
力されるようになっている。Reference numeral 3 denotes a governor, which is a regulator that adjusts the amount of fuel flowing into the diesel engine 2 to control the rotation speed or output. The generated power from the synchronous generator 1 is outputted via a circuit breaker 4.
６ａは電力検出器であり、変圧器７ａ、変流器８によっ
て発１ｔ１′ｒＥ力を検出するようになっている。Reference numeral 6a denotes a power detector, which detects the generated 1t1'rE force by a transformer 7a and a current transformer 8.
電力検出器６ａの出力は、ＡＰＲ（自動電力調節器）９
ａに供給されるようになっている。ＡＰＲ９ａの出力は
、ガバナー３へ供給されるようになっている。このＡＰ
Ｒ９ａは、負荷が大きい場合に、発電電力を常に所定の
値に保つよう上記ガバナー３を制御するようになってい
る。The output of the power detector 6a is an APR (automatic power regulator) 9
It is designed to be supplied to a. The output of the APR 9a is supplied to the governor 3. This AP
R9a controls the governor 3 to always maintain the generated power at a predetermined value when the load is large.
また、電力会社からの受電電力は、スイッチＳＷ１．遮
断器５を介して同期発電機１からの発電電力と連系され
、スイッチＳＷ２ ＳＷ２・・・・・・および遮断器
１２．１２・・・・・・を介して負荷設備１３へ供給さ
れるようになっている。電力検出器６ｂは、変圧器７ｂ
によって受電電力を検出するようになっている。電力検
出器６ｂの出力は、電力フィルタ１０．逆電力ｎ電器１
１へ供給されるようになっている。電力フィルタ１０は
、コンデンサ。In addition, the power received from the electric power company is supplied to the switch SW1. It is interconnected with the generated power from the synchronous generator 1 via the circuit breaker 5, and is supplied to the load equipment 13 via the switches SW2, SW2, and the circuit breakers 12, 12, and so on. It looks like this. The power detector 6b is connected to the transformer 7b.
The incoming power is detected by The output of the power detector 6b is sent to the power filter 10. Reverse power n electric appliance 1
1. The power filter 10 is a capacitor.
抵抗などにから構成されたローパスフィルタである。こ
の電力フィルタ１０の遮断周波数は、萌記受Ｔｉ電力の
変動成分の周波数より低い値に設計されている。また、
ＡＰＲ９ｂの出力は、ＡＰＲ９ａと同様にガバナー３へ
供給されるようになっている。このＡＰｒｔ９ｂは、負
荷が小さい場合に、受電電力を所定の値に保つようガバ
ナー３を制御するようになっている。逆電力継電器１１
は、受電系統への逆潮流を検出して遮断器５を動作させ
、受電を止めるようになっている。A low-pass filter consisting of resistors and other elements. The cutoff frequency of this power filter 10 is designed to be a value lower than the frequency of the fluctuation component of the received Ti power. Also,
The output of the APR 9b is supplied to the governor 3 similarly to the APR 9a. This APrt9b controls the governor 3 to keep the received power at a predetermined value when the load is small. Reverse power relay 11
is designed to detect reverse power flow to the power receiving system and operate the circuit breaker 5 to stop receiving power.
次に、上記構成によるこの実施例ゆ動作について説明す
る。Next, the operation of this embodiment with the above configuration will be explained.
まず、第２図（ａ）に示す時刻ｔ４〜４〜時刻では、負
荷か小さいため受電型カ一定制御が行われる。受電電力
は、負荷変動のため第２図（ａ）に示すように激変する
。この電力は変圧器７ｂを介して電力検出器６ｂによっ
て検出され、この電力は電力フィルタ１０へ供給される
。この電力フィルタ■０では、受ｉＩＮ力の変動成分が
カットされ、第２図（ｂ）に示す波形の電力が得られる
うこの受電電力は、ＡＰＲ９ｂへ供給される。そして、
ＡＰＲ９ｂは受電電力に基づいてガバナー３を制御し、
第２図（ｃ）に示すように同期発電機Ｉの発電電力を増
減させ、受電電力を一定に保つ。First, from time t4 to time t4 shown in FIG. 2(a), since the load is small, power receiving type constant power control is performed. The received power changes drastically due to load fluctuations, as shown in FIG. 2(a). This power is detected by a power detector 6b via a transformer 7b, and this power is supplied to a power filter 10. In this power filter (20), the fluctuation component of the received iIN power is cut, and the received power from which the power having the waveform shown in FIG. 2(b) is obtained is supplied to the APR 9b. and,
APR9b controls the governor 3 based on the received power,
As shown in FIG. 2(c), the power generated by the synchronous generator I is increased or decreased to keep the received power constant.
次に、時刻ｔ、〜時刻ｔ０では、負荷が大きいため発電
型カー窓制御が行われる。発電型カー窓制御では、変圧
器７ａを介して電力検出器６ａによって検出された発Ｎ
電力がＡＰＲ９ａＪこ供給され、このＡＰＲ９ａの出力
がガバナー３へ供給される。Next, from time t to time t0, power generation type car window control is performed because the load is large. In the power generation type car window control, the generated N is detected by the power detector 6a via the transformer 7a.
Electric power is supplied to the APR 9aJ, and the output of this APR 9a is supplied to the governor 3.
この場合は、第２図（ｃ）に示すように発電電力が一定
になるよう同期発電機１が運転される。In this case, the synchronous generator 1 is operated so that the generated power is constant as shown in FIG. 2(c).
次に、第２図（ａ）に示す時刻上〇〜時刻ｔ、では、再
び負荷が小さくなζため上述した時刻ｔ。Next, from time 0 to time t shown in FIG. 2(a), the load is again small ζ, so the time t mentioned above is reached.
〜時刻ｔ、の間と同様に受電型カー窓制御が行われる。The power reception type car window control is performed in the same way as during the time period t.
すなわち、電力会社からの受電電力が、電力フィルタＩ
Ｏへ供給されると、第２図（ｂ）に示すように受電電力
の変動成分がカットされ、その後、ＡＰＲ９ｂへ供給さ
れる。そして、ＡＰＲ９ｂは受電電力に基づいてガバナ
ー３をＩＩＪ（ＩＩし、同期発電機１の発電電力を増減
させ、受電電力を一定に保つ。In other words, the power received from the power company is passed through the power filter I.
When the power is supplied to the APR 9b, the fluctuation component of the received power is cut off as shown in FIG. 2(b), and then the power is supplied to the APR 9b. Then, the APR 9b controls the governor 3 based on the received power, increases or decreases the generated power of the synchronous generator 1, and keeps the received power constant.
「発明の効果」
以上説明したように、この発明によれば受電型カー窓制
御回路の電力トランスデューサと自動電力調整器との間
にフィルタ回路を介挿し、受電電力の変動を平滑するこ
とによって、電力変動による発電機の制御の乱れを防止
できる利点が得られる。"Effects of the Invention" As explained above, according to the present invention, by inserting a filter circuit between the power transducer of the power receiving type car window control circuit and the automatic power regulator, and smoothing fluctuations in the received power, This provides the advantage of preventing disturbances in generator control due to power fluctuations.
第１図は本発明の実施例の構成を示すブロック図、第２
図（ａ）、（ｂ）、（ｃ）は各々、電力計の出力波形図
、電力フィルタの出力波形図および制御パターン図、第
３図は従来の系統連系された発電設備の制御パターン図
である。
６ｂ・・・・・・電力検出器（電力トランスデューサ）
、９ｂ・・・・・・自動電力調整器、１０・・・・・・
電力フィルタ（フィルタ回路）。
受電電力
第１図FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, and FIG.
Figures (a), (b), and (c) are a wattmeter output waveform diagram, a power filter output waveform diagram, and a control pattern diagram, respectively. Figure 3 is a control pattern diagram of a conventional grid-connected power generation facility. It is. 6b...Power detector (power transducer)
, 9b... Automatic power regulator, 10...
Power filter (filter circuit). Received power diagram 1
Claims (2)
会社からの受電電力を一定にする受電電力一定制御回路
を有する系統連系された発電設備において、前記電力ト
ランスデューサと前記自動電力調整器との間に介挿され
るフィルタ回路を具備したことを特徴とする系統連系さ
れた発電設備。(1) In a grid-connected power generation facility that includes a power meter and an automatic power regulator and has a received power constant control circuit that keeps the received power constant from the power company, the power transducer and the automatic power regulator Grid-connected power generation equipment characterized by comprising a filter circuit inserted between the power generation equipment and the power generation equipment.
し、当該フィルタ回路の遮断周波数を前記受電電力の変
動成分の周波数より低い値に設定をたことを特徴とする
請求項（１）記載の系統連系された発電設備。(2) The grid connection according to claim (1), wherein the filter circuit is configured as a low-pass filter, and the cutoff frequency of the filter circuit is set to a value lower than the frequency of the fluctuation component of the received power. power generation equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1046033A JPH02262848A (en) | 1989-02-27 | 1989-02-27 | Linked power generating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1046033A JPH02262848A (en) | 1989-02-27 | 1989-02-27 | Linked power generating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02262848A true JPH02262848A (en) | 1990-10-25 |
Family
ID=12735728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1046033A Pending JPH02262848A (en) | 1989-02-27 | 1989-02-27 | Linked power generating system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02262848A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6231328A (en) * | 1985-07-31 | 1987-02-10 | 日新電機株式会社 | Harmonic current detetion for three-pahse circuit |
-
1989
- 1989-02-27 JP JP1046033A patent/JPH02262848A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6231328A (en) * | 1985-07-31 | 1987-02-10 | 日新電機株式会社 | Harmonic current detetion for three-pahse circuit |
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