JPS62244219A - Safe driving of induction generator - Google Patents
Safe driving of induction generatorInfo
- Publication number
- JPS62244219A JPS62244219A JP61084307A JP8430786A JPS62244219A JP S62244219 A JPS62244219 A JP S62244219A JP 61084307 A JP61084307 A JP 61084307A JP 8430786 A JP8430786 A JP 8430786A JP S62244219 A JPS62244219 A JP S62244219A
- Authority
- JP
- Japan
- Prior art keywords
- power
- load
- induction generator
- generator
- induction
- 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
- 230000006698 induction Effects 0.000 title claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Protection Of Generators And Motors (AREA)
- Control Of Eletrric Generators (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、電力需要家の構内に誘導発電機を設置して
需要電力を補なう場合において、例えば供給電力が停止
された時に構内発電機からの電力を電源側に逆流させな
いようにする安全運転方式％式％
誘導発電機を電力会社系統と並列運転する場合に電力会
社の送配電系統が事故等により送電停止になった際、系
統及び自家用構内の静電容量によって当該誘導発電機は
自己励磁して発電を継続して送配電系統に逆流すること
が起りうるので系統の保安を確保する対策が必要である
。DETAILED DESCRIPTION OF THE INVENTION When an induction generator is installed on the premises of an electric power consumer to supplement the demand power, for example, when the power supply is stopped, the electric power from the premises generator is transferred to the power supply side. Safe operation method to prevent backflow to As a result, the induction generator may self-excite and continue generating power, causing a backflow to the power transmission and distribution system, so measures are required to ensure the safety of the system.
本発明は、正常時においては、常に一定値以上の電力の
供給を受けて誘導発電機を運転すると共に非常時におい
ては誘導発電機を配電ラインから瞬時に切離して配電系
統の安全を図るようにしたものである。The present invention operates an induction generator by always receiving power above a certain value during normal times, and instantly disconnects the induction generator from the power distribution line in an emergency to ensure the safety of the power distribution system. This is what I did.
非常時の誘導発電機の逆流電圧は過電圧又は周波数変動
によって比較的容易に検知できるが、前記のような非常
時は頻繁に起こることではないから非常時にのみ働く検
知手段に頼ることは信頼性の点で危惧がある。The backflow voltage of an induction generator in an emergency can be detected relatively easily by overvoltage or frequency fluctuation, but since the above-mentioned emergencies do not occur frequently, it is not reliable to rely on detection means that only work in emergencies. There are concerns about this.
そこで本発明は１通常作動している電力計測回路を利用
して誘導発電機の駆動源の遮断又は停止及び／又は発電
供給ラインの切離を行なうようにしたものである。Therefore, the present invention utilizes a normally operating power measurement circuit to cut off or stop the drive source of the induction generator and/or disconnect the power generation supply line.
第１図は、通常の誘導発１ｔａ（１）が構内の配電ライ
ン（２）に接続されている場合であって、（３）は供電
線、（４）は遮断器、（５）は接続点である。Figure 1 shows a case where a normal induction generator 1ta (1) is connected to the power distribution line (2) in the premises, where (3) is the power supply line, (4) is the circuit breaker, and (5) is the connection. It is a point.
（８）は接続点より一次例の電力変成器、（７）は二次
例の電流変成器である。 （８）（１２）は伝送器。(8) is a power transformer of the first order from the connection point, and (7) is a current transformer of the second order. (8) (12) is a transmitter.
（９）はエンジン出力調節器、（１０）は発電機を駆動
するエンジン、（１１）は３巻線変成器であって（ＣＴ
−２）−（（：Ｔ−１）に比例した出力を得るものであ
る。(9) is an engine output regulator, (10) is an engine that drives a generator, and (11) is a three-winding transformer (CT
-2) -((:T-1).
図に、おいて全負荷ΣＬに供給される総電力ＩＩＩｔは
Ｗｓ＋Ｗｇであって、本発明においては発電電力ｗ８を
その時の実際負荷に応じて制御する。In the figure, the total power IIIt supplied to the full load ΣL is Ws+Wg, and in the present invention, the generated power w8 is controlled according to the actual load at that time.
即ち供給電力ｗｓが常に一定になるように発電機が運転
されるようになっている０例えばΣＬの容量が ３００
ｋｗのときＷｓを５０Ｋｗに設定：発電電力ｗｇを２５
０Ｋｗとして運転する。全負荷が２００Ｋｗに低下すれ
ばＷｇは １５０Ｋｗになる。また負荷が５０Ｋｗ以下
になればＷｇは零となる。このような条件で運転されて
いるとき停電などによってＷｓが零になっても発電機は
自己励磁作用によって発′屯し電力を供給系統に逆送さ
せるおそれがある。In other words, the generator is operated so that the supplied power ws is always constant.For example, if the capacity of ΣL is 300
Set Ws to 50Kw when kW: Generated power wg is 25
Drive as 0Kw. If the total load decreases to 200Kw, Wg becomes 150Kw. Further, if the load becomes 50Kw or less, Wg becomes zero. When the generator is operated under such conditions, even if Ws becomes zero due to a power outage or the like, there is a risk that the generator will start generating electricity due to its self-excitation effect and send power back to the supply system.
このような場合、逆送゛電力の一部は送電力用負荷Ｌｏ
に流入してＣＴ−１に出力を生じさせるからこれを方向
性電力継電器（１３）によって検知し、その検知出力に
よって直ちに遮断５（４）を開くと同時にエンジンを停
止させる。In such a case, part of the reverse power is transferred to the load Lo for power transmission.
This is detected by the directional power relay (13), and the detected output immediately opens the shutoff 5 (4) and simultaneously stops the engine.
第２図は発電機に２巻線型誘導発電機（実開昭５９−８
８８８１）を使用した場合であってこの場合は遮断器（
４−１）（４−２）の双方を開くようにしている。Figure 2 shows a two-winding induction generator (utilized in 1988-8).
8881) is used, and in this case, the circuit breaker (
Both 4-1) and (4-2) are opened.
４、図面ノ１ｍ ＊ す説ｍ 第１図及び第２図は夫々本発明の回路系統図である。4. The drawing is 1m * theory m 1 and 2 are circuit diagrams of the present invention, respectively.
第１図 第２ＷＪFigure 1 2nd WJ
Claims (1)
が回路遮断器を介して接続されると共に前記誘導発電機
の接続個数より一次例の前記給電ラインに逆電力用負荷
が接続され、該逆電力用負荷接続点と前記回路遮断器接
続点との間の給電ラインに、電力計測装置と、前記誘導
発電機のエンジン出力を制御する調節装置と、逆方向電
力検出器が介装されて、前記誘導発電機の発電電力は常
時前記構内負荷より低い一定の設定電力に維持されて運
転され、送電停止等の非常時において前記逆電力用負荷
に流れる逆方向電流によって前記発電機駆動を停止せし
めることを特徴とする誘導発電機の安全運転方式。In the premises of a consumer, an induction generator is connected to a power supply line to a load via a circuit breaker, and a load for reverse power is connected to the power supply line in a primary example depending on the number of connected induction generators, A power measuring device, a regulating device for controlling the engine output of the induction generator, and a reverse power detector are interposed in the power supply line between the power load connection point and the circuit breaker connection point, The generated power of the induction generator is always maintained at a constant set power lower than the on-site load, and in an emergency such as a power transmission stoppage, the generator drive is stopped by a reverse current flowing to the reverse power load. A safe operation method for induction generators characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61084307A JPS62244219A (en) | 1986-04-14 | 1986-04-14 | Safe driving of induction generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61084307A JPS62244219A (en) | 1986-04-14 | 1986-04-14 | Safe driving of induction generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62244219A true JPS62244219A (en) | 1987-10-24 |
Family
ID=13826833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61084307A Pending JPS62244219A (en) | 1986-04-14 | 1986-04-14 | Safe driving of induction generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62244219A (en) |
-
1986
- 1986-04-14 JP JP61084307A patent/JPS62244219A/en active Pending
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