JPH0583995A - Power control monitoring device - Google Patents
Power control monitoring deviceInfo
- Publication number
- JPH0583995A JPH0583995A JP3237520A JP23752091A JPH0583995A JP H0583995 A JPH0583995 A JP H0583995A JP 3237520 A JP3237520 A JP 3237520A JP 23752091 A JP23752091 A JP 23752091A JP H0583995 A JPH0583995 A JP H0583995A
- Authority
- JP
- Japan
- Prior art keywords
- power
- prime mover
- governor
- monitoring device
- value
- 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
- 238000012806 monitoring device Methods 0.000 title claims abstract description 19
- 238000010248 power generation Methods 0.000 claims abstract description 7
- 230000005856 abnormality Effects 0.000 abstract description 10
- 239000000446 fuel Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004092 self-diagnosis Methods 0.000 description 1
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
(57)【要約】
【目的】本発明は、燃料、原動機本体を含むガバナ制御
系の異常を速やかに検出して警報を発する電力制御監視
装置を提供することにある。
【構成】本発明の電力制御監視装置は、原動機と、前記
原動機で駆動される発電機と、前記原動機に付属するガ
バナと、前記ガバナを制御する電力コントローラと、有
効電力を検出する検出器とを備えた電力系統と連係運転
する自家発電設備において、前記検出器で検出した有効
電力値の微分値と予め設定した警報値とを比較演算して
所定以上の変化があるとき警報を発生する監視装置とか
ら構成されているので、実際の有効電力の変化の微分値
が予め求めていた有効電力制御の制御系の最大応答速度
における変化量の微分値以上の変化が認められれば、速
やかに電力制御を中止させるための警報を出力する。
(57) [Summary] [PROBLEMS] The present invention provides a power control monitoring device that promptly detects an abnormality of a governor control system including a fuel and a prime mover body and issues an alarm. A power control monitoring device of the present invention includes a prime mover, a generator driven by the prime mover, a governor attached to the prime mover, a power controller for controlling the governor, and a detector for detecting active power. In an in-house power generation facility that operates in cooperation with a power system equipped with a monitor that generates an alarm when there is a change of a predetermined value or more by comparing and calculating the differential value of the active power value detected by the detector and a preset alarm value. Since it is composed of a device and a device, if the change of the differential value of the actual change of the active power is equal to or more than the differential value of the change amount in the maximum response speed of the control system of the active power control that was previously obtained, the power is promptly changed. Outputs an alarm to stop control.
Description
【０００１】[0001]
【産業上の利用分野】本発明は電力制御監視装置に係
り、特に自家発電設備の電力制御におけるガバナ制御系
の異常を監視する電力制御監視装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power control and monitoring device, and more particularly to a power control and monitoring device for monitoring abnormality of a governor control system in power control of private power generation equipment.
【０００２】[0002]
【従来の技術】従来の自家用発電設備における電力制御
装置は、例えば、複数の負荷の内どれかが故障すると、
負荷遮断器が開路されその負荷に応じた電力分が低減さ
れるので、ガバナ制御装置によってガバナを絞って発電
機出力を低下させる。また、負荷の故障が直り負荷遮断
器が投入されると、その負荷に応じた電力分が増加する
ので、ガバナ制御装置によってガバナを開き、発電機出
力を上げるように構成されている。このように自家発電
設備の電力制御装置は、負荷変動があっても発電機から
商用電力系統へ逆電力が流れることがなく、契約電力量
が低く設定できるように構成されている。したがって、
電力制御装置の異常に対しては早急に対処する必要があ
る。2. Description of the Related Art A conventional power control device for a private power generation facility, for example, when any of a plurality of loads fails,
Since the load circuit breaker is opened and the electric power corresponding to the load is reduced, the governor control unit throttles the governor to reduce the generator output. Further, when the load is repaired and the load circuit breaker is turned on, the electric power corresponding to the load increases, so that the governor control device opens the governor to increase the generator output. In this way, the power control device of the private power generation facility is configured so that the reverse power does not flow from the generator to the commercial power grid even if the load changes, and the contract power amount can be set low. Therefore,
It is necessary to promptly deal with the abnormality of the power control device.
【０００３】[0003]
【発明が解決しようとする課題】ところで、従来の電力
制御装置の保護警報には、電力制御装置自体の異常を検
出するウォッチドッグタイマによる自己診断警報装置や
制御信号を積算する積算器による過信号警報装置などで
行っていた。By the way, as a protection alarm of a conventional power control device, a self-diagnosis alarm device by a watchdog timer for detecting an abnormality of the power control device itself or an over-signal by an integrator for accumulating control signals. I was using an alarm device.
【０００４】上記したように、従来技術では電力制御装
置自体の異常による異常制御は保護することができた
が、被制御対象の原動機側の異常による誤制御までは保
護することができなかったので、このような原動機側の
異常をも監視できる電力制御監視装置の開発が望まれて
いた。As described above, in the prior art, although the abnormal control due to the abnormality of the power control device itself can be protected, the erroneous control due to the abnormality of the prime mover side to be controlled cannot be protected. It has been desired to develop a power control monitoring device capable of monitoring such an abnormality on the prime mover side.
【０００５】本発明は上記事情に鑑みてなされたもの
で、その目的は燃料、原動機本体を含むガバナ制御系の
異常を速やかに検出して警報を出力する電力制御監視装
置を提供することにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a power control monitoring device for promptly detecting an abnormality of a governor control system including a fuel and a motor main body and outputting an alarm. .
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明の電力制御監視装置は、原動機と、前記原動
機で駆動される発電機と、前記原動機に付属するガバナ
と、前記ガバナを制御する電力コントローラと、有効電
力を検出する検出器とを備えた電力系統と連係運転する
自家発電設備において、前記検出器で検出した有効電力
値の微分値と予め設定した警報値とを比較演算して所定
以上の変化があるとき警報を出力する監視装置とから構
成されたことを特徴とするものである。In order to achieve the above object, a power control and monitoring device of the present invention comprises a prime mover, a generator driven by the prime mover, a governor attached to the prime mover, and the governor. In an in-house power generation facility that operates in cooperation with a power system that includes a power controller that controls and a detector that detects active power, a comparison calculation of a differential value of the active power value detected by the detector and a preset alarm value And a monitoring device that outputs an alarm when there is a change more than a predetermined value.
【０００７】[0007]
【作用】本発明の電力制御監視装置によると、有効電力
制御の制御系の応答速度より予め最大応答速度における
変化量の微分値を計算しておき、実際の有効電力の変化
の微分値と比較演算を行い、理論値以上の変化が認めら
れれば、速やかに電力制御を中止させるための警報を出
力する。According to the power control monitoring device of the present invention, the differential value of the change amount in the maximum response speed is calculated in advance from the response speed of the control system for active power control and compared with the differential value of the actual active power change. When a calculation is performed and a change of more than the theoretical value is recognized, an alarm for promptly stopping the power control is output.
【０００８】[0008]
【実施例】以下、本発明の実施例を図を参照して説明す
る。図１は、本発明の一実施例の電力制御監視装置のブ
ロック構成図である。同図において、１は図示しないし
ゃ断器を介して商用電力と並列運転する発電機、２は発
電機１を駆動する原動機、３は原動機２のガバナであ
る。４は有効電力検出器であり、この有効電力検出器４
からの検出信号が電力コントローラ５に入力され、ガバ
ナ３は電力コントローラ５によって制御される。６は監
視装置であり、監視装置６は実際の有効電力の変化の微
分値を演算する微分演算部６ａと、有効電力制御の制御
系の応答速度より予め最大応答速度における変化量の微
分値を保存する設定部６ｂと、微分演算部６ａの出力と
設定部６ｂの出力とを比較する比較部６ｃとから構成さ
れている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a power control monitoring device according to an embodiment of the present invention. In the figure, 1 is a generator that operates in parallel with commercial power via a breaker (not shown), 2 is a prime mover that drives the generator 1, and 3 is a governor of the prime mover 2. 4 is an active power detector, and this active power detector 4
Is input to the power controller 5, and the governor 3 is controlled by the power controller 5. Reference numeral 6 denotes a monitoring device, and the monitoring device 6 calculates a differential value of a change amount at a maximum response speed in advance from a differential operation portion 6a that calculates a differential value of an actual active power change and a response speed of a control system for active power control. It is composed of a setting unit 6b for storing and a comparing unit 6c for comparing the output of the differential operation unit 6a and the output of the setting unit 6b.
【０００９】次に、本実施例の作用について説明する。
発電機１で発生している有効電力を有効電力検出器４に
よって検出して電力コントローラ５に入力し、この電力
コントローラ５において、有効電力が低いと判断される
と、ガバナ３に開信号を与え、原動機２の回転を大とし
て発電機出力を上げるように制御する。また、電力コン
トローラ５において、有効電力が高いと判断されると、
ガバナ３に閉信号を与え、原動機２の回転を小さくして
発電機出力を下げるように制御する。また、同時に、監
視装置６では、微分演算部６ａにおいて有効電力の変化
の微分値を演算し、この演算値と設定部６ｂ内に保存し
ている有効電力制御の制御系の応答速度より予め最大応
答速度における変化量の微分値を比較部６ｃにて比較し
て前者が後者より大きいと警報信号を出力する。Next, the operation of this embodiment will be described.
The active power generated by the generator 1 is detected by the active power detector 4 and input to the power controller 5, and when the power controller 5 determines that the active power is low, it gives an open signal to the governor 3. , Control is performed so that the rotation of the prime mover 2 is increased and the generator output is increased. When the power controller 5 determines that the active power is high,
A control signal is given to the governor 3 to reduce the rotation of the prime mover 2 and lower the generator output. At the same time, in the monitoring device 6, the differential calculation unit 6a calculates the differential value of the change in active power, and the calculated maximum value and the response speed of the control system for active power control stored in the setting unit 6b are used in advance to determine the maximum value. The differential value of the change amount in the response speed is compared by the comparison unit 6c, and if the former is larger than the latter, an alarm signal is output.
【００１０】ところで、従来、実負荷変動と発電装置の
不具合による負荷変動との区別が難しく、なかなか実用
化されなかった。しかし、商用電力系統と連係運転する
自家発電設備が増加してきたので、実負荷変動は系統側
の電力変動として吸収されて自家発電機側にあまり現れ
なくなった。そのため本発明の電力制御監視装置が実現
可能となった。しかして、電力制御の制御系はガバナの
電力設定器をモータで駆動して設定する場合が多く、モ
ータの回転速度で応答が決定される例が多い。本発明の
電力制御監視装置を使用すると、電気ガバナ制御系に混
入したノイズによる電力乱調や燃料系のトラブルやシリ
ンダ内の異常による電力乱調などが容易に検出でき、保
護警報できる。By the way, conventionally, it has been difficult to distinguish the actual load fluctuation from the load fluctuation due to a malfunction of the power generator, and it has not been practically used. However, as the number of private power generation facilities that operate in conjunction with the commercial power system has increased, actual load fluctuations have been absorbed as power fluctuations on the grid side and do not appear much on the private generator side. Therefore, the power control monitoring device of the present invention can be realized. In a power control system, a governor power setter is often driven by a motor for setting, and the response is often determined by the rotation speed of the motor. By using the power control monitoring device of the present invention, power disturbance due to noise mixed in the electric governor control system, fuel system trouble, power disturbance due to abnormality in the cylinder, etc. can be easily detected and a protection alarm can be issued.
【００１１】[0011]
【発明の効果】以上説明したように、本発明によれば、
電気ガバナ制御系に混入したノイズによる電力乱調や燃
料系のトラブルやシリンダ内の異常による電力乱調など
が容易に検出できるので、直ちに保護警報できるとい
う、優れた効果を奏する。As described above, according to the present invention,
Since an electric power disturbance due to noise mixed in the electric governor control system, a trouble in the fuel system, a power irregularity due to an abnormality in the cylinder, and the like can be easily detected, a protection alarm can be immediately issued, which is an excellent effect.
【図１】本発明の一実施例のブロック構成図。FIG. 1 is a block diagram of an embodiment of the present invention.
１…発電機、２…原動機、３…ガバナ、４…有効電力検
出器、５…電力コントローラ、６…監視装置、６ａ…微
分演算部、６ｂ…設定部、６ｃ…比較部。DESCRIPTION OF SYMBOLS 1 ... Generator, 2 ... Motor, 3 ... Governor, 4 ... Active power detector, 5 ... Electric power controller, 6 ... Monitoring device, 6a ... Differential calculation part, 6b ... Setting part, 6c ... Comparison part.
Claims (1)
機と、前記原動機に付属するガバナと、前記ガバナを制
御する電力コントローラと、有効電力を検出する検出器
とを備えた電力系統と連係運転する自家発電設備におい
て、前記検出器で検出した有効電力値の微分値と予め設
定した警報値とを比較演算して所定以上の変化があると
き警報を出力する監視装置とから構成されたことを特徴
とする電力制御監視装置。1. A power system including a prime mover, a generator driven by the prime mover, a governor attached to the prime mover, a power controller for controlling the governor, and a detector for detecting active power. In a private power generation facility to be operated, it is composed of a monitoring device that outputs a warning when a differential value of the active power value detected by the detector and a preset warning value are compared and calculated and there is a change more than a predetermined value. An electric power control and monitoring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3237520A JPH0583995A (en) | 1991-09-18 | 1991-09-18 | Power control monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3237520A JPH0583995A (en) | 1991-09-18 | 1991-09-18 | Power control monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0583995A true JPH0583995A (en) | 1993-04-02 |
Family
ID=17016545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3237520A Pending JPH0583995A (en) | 1991-09-18 | 1991-09-18 | Power control monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0583995A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59173000A (en) * | 1983-03-23 | 1984-09-29 | Hitachi Ltd | Excitation controller of synchronous machine |
| JPS63282807A (en) * | 1987-05-15 | 1988-11-18 | Toshiba Corp | Abnormality diagnosing device |
-
1991
- 1991-09-18 JP JP3237520A patent/JPH0583995A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59173000A (en) * | 1983-03-23 | 1984-09-29 | Hitachi Ltd | Excitation controller of synchronous machine |
| JPS63282807A (en) * | 1987-05-15 | 1988-11-18 | Toshiba Corp | Abnormality diagnosing device |
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