JP4001099B2 - Distributed power supply vibration diagnosis system - Google Patents

Distributed power supply vibration diagnosis system Download PDF

Info

Publication number
JP4001099B2
JP4001099B2 JP2003380600A JP2003380600A JP4001099B2 JP 4001099 B2 JP4001099 B2 JP 4001099B2 JP 2003380600 A JP2003380600 A JP 2003380600A JP 2003380600 A JP2003380600 A JP 2003380600A JP 4001099 B2 JP4001099 B2 JP 4001099B2
Authority
JP
Japan
Prior art keywords
vibration
distributed power
power supply
diagnosis system
reference signal
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 - Fee Related
Application number
JP2003380600A
Other languages
Japanese (ja)
Other versions
JP2005147669A (en
Inventor
和幸 山口
亨之 高木
邦良 坪内
晋 中野
聡 百々
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2003380600A priority Critical patent/JP4001099B2/en
Publication of JP2005147669A publication Critical patent/JP2005147669A/en
Application granted granted Critical
Publication of JP4001099B2 publication Critical patent/JP4001099B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Control Of Turbines (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Description

本発明は、電気使用者の近くに分散して配置された分散電源の振動を診断する診断システムに関する。   The present invention relates to a diagnostic system for diagnosing vibrations of a distributed power supply that is distributed in the vicinity of an electric user.

従来の振動異常診断装置の例が、特許文献１に記載されている。この公報の特に図１に特徴的に示されるように、異常診断装置で、振動プロセス計測器が振動データを計測している。この振動プロセス計測器で計測した振動データに基づいて、振動異常検知用判定値記憶手段が振動異常の判定基準を記憶する。振動異常検知用判定値記憶手段に記憶した振動異常検知用判定値と振動プロセス計測器で計測した振動データを比較して、振動異常判定手段が振動異常を判定する。振動異常判定手段の判定結果を診断結果表示出力手段が表示する。また非特許文献１には、機器の振動を診断する方法が記載されている。この文献の表３に記載された振動徴候マトリックスを用いると、異常振動の原因を振動周波数や振動方向、振動部位、回転速度変化に伴う振幅の増減から特定できる。   An example of a conventional vibration abnormality diagnosis apparatus is described in Patent Document 1. As specifically shown in FIG. 1 of this publication, a vibration process measuring instrument measures vibration data in an abnormality diagnosis apparatus. Based on the vibration data measured by the vibration process measuring instrument, the vibration abnormality detection determination value storage means stores a vibration abnormality determination criterion. The vibration abnormality determination means determines vibration abnormality by comparing the vibration abnormality detection determination value stored in the vibration abnormality detection determination value storage means with the vibration data measured by the vibration process measuring instrument. The diagnosis result display output means displays the determination result of the vibration abnormality determination means. Non-Patent Document 1 describes a method of diagnosing device vibration. If the vibration symptom matrix described in Table 3 of this document is used, the cause of abnormal vibration can be specified from the increase / decrease of the amplitude accompanying the vibration frequency, vibration direction, vibration part, and rotational speed change.

特開平２００１−３２４３８０号公報Japanese Patent Laid-Open No. 2001-324380

木村、山内、「振動徴候マトリックス」、ターボ機械、社団法人ターボ機械協会、１９８２年、第１０巻、第１０号、ｐ５０Kimura, Yamauchi, “Vibration Sign Matrix”, Turbomachinery, Turbomachinery Association, 1982, Vol. 10, No. 10, p50

上記特許文献１に記載の振動異常診断装置は、広く一般の機器を対象にしているので、マイクロタービンやガスエンジンを有する分散電源に適用するのには不十分であった。つまり、電力事業者や工場向けの大型発電設備とは異なり、分散電源の使用者は必ずしも運転や監視、保守、点検に十分な時間と経費と人員を費やすことができない。したがって、簡便な方法で分散電源を構成する各機器の出力を調整する自動運転システムと、機器の健全性を自動的に監視および点検し、機器に異常が生じていたら原因を自動的に判定して保守作業者に伝えるシステムが望まれている。   Since the vibration abnormality diagnosis apparatus described in Patent Document 1 is intended for a wide range of general equipment, it is insufficient for application to a distributed power source having a micro turbine or a gas engine. In other words, unlike large power generation facilities for electric power companies and factories, users of distributed power sources cannot always spend sufficient time, expenses and personnel for operation, monitoring, maintenance and inspection. Therefore, an automatic operation system that adjusts the output of each device that makes up the distributed power supply in a simple manner, and automatically monitors and inspects the health of the device, and automatically determines the cause if an abnormality occurs in the device. Therefore, there is a need for a system that communicates to maintenance workers.

非特許文献１に記載された振動徴候マトリックスを用いると、確かに測定部位の振幅の増減から機器の異常振動の原因を特定できるが、機器の回転速度等の運転条件を変化させるためには保守作業者が必要であるとともに、運転条件の決定には熟練者の判断が必要である。さのため、振動原因を自動で特定するのには限界があった。   If the vibration symptom matrix described in Non-Patent Document 1 is used, the cause of abnormal vibration of the device can be identified from the increase or decrease of the amplitude of the measurement site, but maintenance is required to change the operating conditions such as the rotation speed of the device. An operator is required, and determination of an operation condition requires judgment of an expert. For this reason, there is a limit to automatically specifying the cause of vibration.

本発明は上記従来技術の不具合に鑑みなされたものでありその目的は、分散電源の振動原因を簡便にかつ高精度に推定することにある。   The present invention has been made in view of the above-described problems of the prior art, and an object thereof is to easily and accurately estimate the cause of vibration of a distributed power source.

上記目的を達成する本発明の特徴は、分散電源を構成する機器の振動を計測して分散電源の異常を診断する分散電源振動診断システムであって、機器の振動を計測する振動計測手段と、この振動計測手段が計測した計測信号を予め定めた基準値と比較して振動異常を判定する判定手段と、この判定手段の判定結果に基づいて試験運転条件を自動的に決定する試験運転条件決定手段と、決定された試験運転条件で分散電源を自動運転する自動運転手段とを有し、前記判定手段は運転条件を変化させたときの振動状態変化に基づいて振動異常を判定するものである。   A feature of the present invention that achieves the above object is a distributed power supply vibration diagnostic system for diagnosing abnormalities in a distributed power supply by measuring vibrations of the equipment constituting the distributed power supply, and a vibration measuring means for measuring the vibration of the equipment, A determination unit that determines a vibration abnormality by comparing a measurement signal measured by the vibration measurement unit with a predetermined reference value, and a test operation condition determination that automatically determines a test operation condition based on a determination result of the determination unit Means and automatic operation means for automatically operating the distributed power source under the determined test operation condition, and the determination means determines vibration abnormality based on a change in vibration state when the operation condition is changed. .

そしてこの特徴において、判定手段と試験運転条件決定手段とを有し、機器からは遠隔して配置した遠隔監視システムを有し、この遠隔監視システムと分散電源の機器との間でデータを転送するデータ転送手段を設けるようにしてもよく、機器に振動異常が発生したら表示する表示手段を遠隔監視システムに設けてもよい。   And in this feature, it has a determination means and a test operation condition determination means, has a remote monitoring system arranged remotely from the equipment, and transfers data between the remote monitoring system and the equipment of the distributed power source. Data transfer means may be provided, and display means for displaying when a vibration abnormality occurs in the device may be provided in the remote monitoring system.

また、機器は回転体を有するガスタービンまたはガスエンジンであり、この回転体の位相基準信号を計測する位相基準信号計測手段と、計測手段が計測した信号から振動状態を計算する振動状態計算手段とを有し、この振動状態計算手段は、計測手段が計測した振動信号について、位相基準信号計測手段が計測した位相基準信号から求めた回転周波数の整数倍または回転周波数の整数分の１の周波数成分の振幅と、位相基準信号との位相差とを演算するものであることが好ましく、試験運転条件決定手段が決定する運転条件は、ガスタービンまたはガスエンジンの回転速度と出力と作動ガスの流量と燃料の流量と潤滑流体の流量と冷却流体の流量の少なくともいずれかであるのがよい。   Further, the device is a gas turbine or a gas engine having a rotating body, a phase reference signal measuring means for measuring a phase reference signal of the rotating body, and a vibration state calculating means for calculating a vibration state from the signal measured by the measuring means; The vibration state calculation means has a frequency component that is an integral multiple of a rotation frequency or a fraction of an integer of the rotation frequency obtained from the phase reference signal measured by the phase reference signal measurement means for the vibration signal measured by the measurement means. And the phase difference between the phase reference signal and the operating conditions determined by the test operating condition determining means are the rotational speed and output of the gas turbine or the gas engine, the flow rate of the working gas, and so on. It may be at least one of a fuel flow rate, a lubricating fluid flow rate, and a cooling fluid flow rate.

本発明によれば、分散電源振動診断システムに試験運転条件決定手段及び自動運転手段を設けたので、分散電源を構成する各機器の運転条件を変化させて振動状態変化を計測することができる。これにより、定常状態の振動計測では特定できない振動原因を高精度にかつ簡便に特定できる。   According to the present invention, since the test operation condition determining means and the automatic operation means are provided in the distributed power supply vibration diagnosis system, it is possible to measure the vibration state change by changing the operation conditions of each device constituting the distributed power supply. As a result, it is possible to easily and accurately specify the cause of vibration that cannot be specified by steady-state vibration measurement.

以下、図面を用いて本発明の一実施例を説明する。図１は、本発明に係る分散電源振動診断システムの一実施例のブロック図である。分散電源システムでは、複数のマイクロタービンやガスエンジン等の発電機器を有する分散電源が、各地に分散して配置される。これらの分散して配置された電源１４の１個に着目したのが図１であり、発電機器はマイクロガスタービンである。マイクロガスタービンには、振動計測手段１が取り付けられており、分散電源１４の振動を計測して振動信号を発生する。振動計測手段１は、例えば渦電流式変位計である。振動計測手段１の計測信号は、分散電源１４が備える振動信号取込手段２に送信される。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of an embodiment of a distributed power supply vibration diagnosis system according to the present invention. In a distributed power supply system, distributed power supplies having a plurality of power generation devices such as micro turbines and gas engines are distributed and arranged in various places. FIG. 1 focuses on one of these dispersedly arranged power supplies 14, and the power generation device is a micro gas turbine. A vibration measuring means 1 is attached to the micro gas turbine, and the vibration of the distributed power source 14 is measured to generate a vibration signal. The vibration measuring means 1 is, for example, an eddy current displacement meter. The measurement signal of the vibration measuring means 1 is transmitted to the vibration signal capturing means 2 provided in the distributed power source 14.

マイクロガスタービンのロータのキー溝に対向して、位相基準信号を計測する渦電流式変位計が計測手段３として取り付けられている。この計測手段が計測したロータの回転位相基準から位相基準信号を作成し、位相基準信号取り込み手段４に出力する。振動信号取込手段２が取り込んだ振動信号と位相基準信号取込手段４が取り込んだ位相基準信号とは、データ転送手段５に入力され、データ転送手段５から分散電源１４から遠隔の場所に設けた遠隔監視システム１３に転送される。データ転送手段５には、電話回線やインターネット回線、携帯電話回線などを使用する。   An eddy current displacement meter for measuring a phase reference signal is attached as the measuring means 3 so as to face the key groove of the rotor of the micro gas turbine. A phase reference signal is created from the rotational phase reference of the rotor measured by this measuring means and output to the phase reference signal capturing means 4. The vibration signal acquired by the vibration signal acquisition means 2 and the phase reference signal acquired by the phase reference signal acquisition means 4 are input to the data transfer means 5 and provided at a location remote from the data transfer means 5 from the distributed power source 14. To the remote monitoring system 13. As the data transfer means 5, a telephone line, an Internet line, a mobile phone line, or the like is used.

遠隔監視システム１３では、取り込んだ振動信号と位相基準信号とに基づいて、振動状態計算手段６がマイクロガスタービンの振動状態を計算し、計算した結果を振動状態記憶手段７に記憶する。振動状態計算手段６が計算する振動状態は、振動振幅や周波数スペクトル、位相基準信号の回転数成分、振動の回転数成分、回転数の整数倍成分、回転数の整数分の１成分との位相差等である。   In the remote monitoring system 13, the vibration state calculation unit 6 calculates the vibration state of the micro gas turbine based on the acquired vibration signal and phase reference signal, and stores the calculated result in the vibration state storage unit 7. The vibration state calculated by the vibration state calculation means 6 includes the vibration amplitude and frequency spectrum, the rotational speed component of the phase reference signal, the rotational speed component of the vibration, the integral multiple component of the rotational speed, and the integral component of the rotational speed. Such as phase difference.

遠隔監視システム１３が有する振動異常判定条件記憶手段８には、マイクロタービンの運転が正常か異常かを判断するために、振動振幅や周波数スペクトル、位相基準信号の回転数成分、振動の回転数成分、回転数の整数倍成分、回転数の整数分の１成分との位相差等の振動状態の基礎データが記憶されている。これらの振動状態に関するデータを、振動計測手段１が計測したデータと振動異常判定手段９が比較し、振動原因を推定する。   The vibration abnormality determination condition storage unit 8 included in the remote monitoring system 13 includes vibration amplitude, a frequency spectrum, a rotational frequency component of a phase reference signal, and a rotational frequency component of vibration in order to determine whether the operation of the microturbine is normal or abnormal. Basic data of the vibration state such as a phase difference from an integral multiple component of the rotational speed and a component of an integral part of the rotational speed is stored. The data relating to these vibration states are compared with the data measured by the vibration measuring means 1 and the vibration abnormality determining means 9 to estimate the cause of vibration.

マイクロガスタービンで発生した振動が、正常か異常かの判定に用いる判定条件の例を図２に示す。ガスタービンの運転で発生した振動が異常か否かを判定するために、アンバランス等の振動原因と、振動周波数等の振動状態との関係を求め、その発生確率を表化する。回転系における質量の不釣合いであるアンバランス、組み立てのための許容公差等に起因するガタによる非線形振動、軸受に用いる潤滑油で発生する不安定振動のオイルホイップ、その他の振動原因について、発生確率の和を計算する。この和が大きいものほど振動原因である可能性が高い。例えば定格運転では、回転速度成分が基準値から顕著に変化していれば、その振動原因はほぼ確実にロータのアンバランスに起因するものと判断する。同様に、１／２回転速度成分が増大していれば、ガタによる非線形振動と判断し、固有振動数成分が増大していれば、軸受のオイルホイップに起因するものと判断する。振動異常判定手段９が推定した振動原因は、振動異常表示手段１０に表示される。   An example of determination conditions used for determining whether the vibration generated in the micro gas turbine is normal or abnormal is shown in FIG. In order to determine whether or not the vibration generated by the operation of the gas turbine is abnormal, the relationship between the cause of vibration such as unbalance and the vibration state such as vibration frequency is obtained, and the occurrence probability is tabulated. Probability of occurrence of unbalance, which is a mass imbalance in a rotating system, non-linear vibration due to play due to tolerances for assembly, oil whip of unstable vibration generated by lubricating oil used for bearings, and other causes of vibration Calculate the sum of The larger this sum is, the more likely it is to cause vibration. For example, in rated operation, if the rotational speed component changes significantly from the reference value, it is determined that the cause of the vibration is almost certainly caused by the rotor imbalance. Similarly, if the 1/2 rotation speed component is increased, it is determined that the vibration is non-linear, and if the natural frequency component is increased, it is determined that it is caused by the oil whip of the bearing. The cause of vibration estimated by the vibration abnormality determining means 9 is displayed on the vibration abnormality display means 10.

この図２に示した定常運転時の振動異常の判定表だけを用いて異常判定をしようとすると、発生確率が大きい振動原因が複数あって、振動原因を完全に特定することができない場合がある。例えば、固有振動数が５０Ｈｚであるロータが回転速度１００ｓ−１で回転しているときに、振動計測手段１が計測したロータ振動中の５０Ｈｚ成分が大きくなったとする。この場合、振動数成分が増大するとともに、回転速度の１／２の周波数成分も増大しているので、ガタによる非線型振動とすべり軸受におけるオイルホイップが発生している確率は、ほぼ同程度である。非線形振動とオイルホイップとを振動原因に推定する。 If an attempt is made to make an abnormality determination using only the vibration abnormality determination table during steady operation shown in FIG. 2, there are cases where there are a plurality of vibration causes with a high probability of occurrence and the vibration cause cannot be completely specified. . For example, it is assumed that the 50 Hz component in the rotor vibration measured by the vibration measuring unit 1 becomes large when the rotor having the natural frequency of 50 Hz rotates at the rotation speed of 100 s −1 . In this case, the frequency component increases and the frequency component that is 1/2 of the rotational speed also increases. Therefore, the probability of occurrence of non-linear vibration due to play and oil whip in the slide bearing is approximately the same. is there. Nonlinear vibration and oil whip are estimated as the cause of vibration.

振動異常を判定するのに用いる過渡運転時の振動異常判定条件の他の例を、図３に示す。回転速度を低下させたときの判定条件である。運転条件が変化したのに伴い、振動状態も変化する。運転回転速度が低下しても、その運転回転速度の成分が顕著であれば、アンバランスやガタによる非線形速度が振動の原因である確率が高い。運転回転速度を低下させても、振動の特定周波数成分(周波数一定)が顕著であれば、振動の原因をオイルホイップと判断する。   FIG. 3 shows another example of vibration abnormality determination conditions during transient operation used to determine vibration abnormality. This is a determination condition when the rotational speed is lowered. As the operating conditions change, the vibration state also changes. Even if the operating rotational speed decreases, if the operating rotational speed component is significant, there is a high probability that the nonlinear speed due to unbalance or backlash is the cause of vibration. If the specific frequency component (constant frequency) of the vibration is significant even when the operating rotational speed is reduced, the cause of the vibration is determined to be an oil whip.

回転速度を変化させると、振動の原因が強調されることが図２および図３から知られるので、遠隔監視装置１３に試験運転条件決定手段１１を設ける。それとともに、分散電源１４に、この試験運転条件決定手段１１の指令に基づいて分散電源１４を運転する自動運転手段１２を設ける。試験運転条件決定手段１１の指令は、データ転送手段５を介して自動運転手段１２に送られる。試験運転条件決定手段１１は、想定される振動原因から図３の判定条件表を用いて、振動原因の特定に適合した試験モードを決定する。５０Ｈｚ成分が大きい振動では、回転速度を自動的に所定幅だけ変化させて試験運転する。なお、潤滑油の流量を発電運転に支障無い量だけ変化させるのであれば、発電運転中に試験運転することもできる。回転速度を大幅に変化させる必要があって発電運転に支障が生じるときは、電力消費量の小さい夜間などに試験運転する。   Since it is known from FIGS. 2 and 3 that the cause of vibration is emphasized when the rotational speed is changed, the test operation condition determining means 11 is provided in the remote monitoring device 13. At the same time, the distributed power source 14 is provided with automatic operation means 12 for operating the distributed power source 14 based on the command of the test operation condition determining means 11. The command of the test operation condition determination means 11 is sent to the automatic operation means 12 via the data transfer means 5. The test operation condition determining means 11 determines a test mode suitable for specifying the cause of vibration using the determination condition table of FIG. 3 from the assumed cause of vibration. In the case of vibration with a large 50 Hz component, a test operation is performed by automatically changing the rotation speed by a predetermined width. If the flow rate of the lubricating oil is changed by an amount that does not interfere with the power generation operation, a test operation can be performed during the power generation operation. If it is necessary to change the rotation speed significantly and the power generation operation is hindered, test operation is performed at night when power consumption is low.

試験運転中には、振動信号と位相基準信号とを、データ転送手段５が遠隔監視システム１３に転送する。そして、振動状態計算手段６が計算した振動状態を、振動状態記憶手段７に記憶する。振動状態記憶手段７に記憶した複数の運転条件に対する振動状態と、振動異常判定条件記憶手段８に記憶した振動状態から、振動異常判定手段９が振動原因を判定し、振動異常表示手段１０に結果を出力する。   During the test operation, the data transfer means 5 transfers the vibration signal and the phase reference signal to the remote monitoring system 13. Then, the vibration state calculated by the vibration state calculation unit 6 is stored in the vibration state storage unit 7. The vibration abnormality determination means 9 determines the cause of vibration from the vibration states for a plurality of operating conditions stored in the vibration state storage means 7 and the vibration states stored in the vibration abnormality determination condition storage means 8, and the result is displayed on the vibration abnormality display means 10. Is output.

図４に、本発明に係る分散電源振動診断システムの他の実施例を、ブロック図で示す。本実施例では、分散電源１４に振動状態計算手段６を設けている。データ転送手段５は、大容量の振動信号を転送する必要が無い。その結果、小容量の振動状態計算結果を転送すればよいので、データ転送に要する時間の減少もしくは転送能力を低減でき、通信コストを削減することができる。   FIG. 4 is a block diagram showing another embodiment of the distributed power supply vibration diagnosis system according to the present invention. In the present embodiment, the vibration state calculation means 6 is provided in the distributed power source 14. The data transfer means 5 does not need to transfer a large capacity vibration signal. As a result, it is only necessary to transfer a small-capacity vibration state calculation result, so that the time required for data transfer or the transfer capability can be reduced, and the communication cost can be reduced.

図５に、本発明に係る分散電源振動診断システムのさらに他の実施例を、ブロック図で示す。本実施例は、上記各実施例とは振動の異常判定までを分散電源１４側で実行させる点が相違している。すなわち、分散電源１４は、さらに振動状態記憶手段７、振動異常判定条件記憶手段８、振動異常判定手段９、試験運転条件決定手段１１を有している。データ転送手段５は、振動異常判定結果だけを転送すればよい。転送に要する機器の構成を簡略化できるとともに、転送容量が大幅に低減するので、転送に要する費用を低減できる。   FIG. 5 is a block diagram showing still another embodiment of the distributed power supply vibration diagnosis system according to the present invention. The present embodiment is different from the above embodiments in that the process up to the vibration abnormality determination is executed on the distributed power source 14 side. That is, the distributed power source 14 further includes a vibration state storage unit 7, a vibration abnormality determination condition storage unit 8, a vibration abnormality determination unit 9, and a test operation condition determination unit 11. The data transfer means 5 need only transfer the vibration abnormality determination result. The configuration of equipment required for transfer can be simplified, and the transfer capacity can be greatly reduced, so that the cost required for transfer can be reduced.

なお本実施例のように、分散電源１４に振動異常判定手段９、試験運転条件決定手段１１までの各手段を設けるとともに、遠隔監視システム１３側には振動状態計算手段６以降の各手段を設けてもよい。このようにすれば、普段のデータ転送量は極めて低下するとともに、異常時には遠隔監視システム１３から振動データを直接吸い上げることが可能になるため、保守性が向上する。   As in this embodiment, the distributed power source 14 is provided with the vibration abnormality determining means 9 and the test operation condition determining means 11, and the remote monitoring system 13 is provided with the means after the vibration state calculating means 6. May be. In this way, the normal data transfer amount is extremely reduced, and vibration data can be directly sucked from the remote monitoring system 13 in the event of an abnormality, so that maintainability is improved.

試験運転により変化させる運転条件には、回転速度のほかに、機器出力や作動流体流量、燃料流量、潤滑油流量、冷却流体流量の少なくともいずれかを用いることができる。これらの諸量を用いるときも、回転速度を用いたときと同様に図２や図３に示したような判定表を予め作成し、その判定表から導き出される運転モードにしたがってガスタービンやガスエンジンを運転することが望ましい。   In addition to the rotational speed, at least one of the device output, the working fluid flow rate, the fuel flow rate, the lubricating oil flow rate, and the cooling fluid flow rate can be used as the operating condition changed by the test operation. When these various quantities are used, a judgment table as shown in FIG. 2 or FIG. 3 is created in advance in the same manner as when the rotational speed is used, and a gas turbine or a gas engine according to the operation mode derived from the judgment table. It is desirable to drive.

本発明に係る分散電源振動診断システムの一実施例のブロック図である。It is a block diagram of one Example of the distributed power supply vibration diagnostic system which concerns on this invention. 定常運転時の振動異常判定条件を説明する図である。It is a figure explaining the vibration abnormality determination conditions at the time of steady operation. 過渡運転時の振動異常判定条件を説明する図である。It is a figure explaining the vibration abnormality determination conditions at the time of transient operation. 本発明に係る分散電源振動診断システムの他の実施例のブロック図である。It is a block diagram of the other Example of the distributed power supply vibration diagnostic system which concerns on this invention. 本発明に係る分散電源振動診断システムのさらに他の実施例のブロック図である。It is a block diagram of further another embodiment of the distributed power supply vibration diagnosis system according to the present invention.

符号の説明Explanation of symbols

１…振動計測手段、２…振動信号取込手段、３…位相基準信号計測手段、４…位相基準信号取込手段、５…データ転送手段、６…振動状態計算手段、７…振動状態記憶手段、８…振動異常判定条件記憶手段、９…振動異常判定手段、１０…振動異常表示手段、１１…試験運転条件決定手段、１２…自動運転手段、１３…遠隔監視システム、１４…分散電源。

DESCRIPTION OF SYMBOLS 1 ... Vibration measuring means, 2 ... Vibration signal taking means, 3 ... Phase reference signal measuring means, 4 ... Phase reference signal taking means, 5 ... Data transfer means, 6 ... Vibration state calculation means, 7 ... Vibration state memory means 8 ... Vibration abnormality determination condition storage means, 9 ... Vibration abnormality determination means, 10 ... Vibration abnormality display means, 11 ... Test operation condition determination means, 12 ... Automatic operation means, 13 ... Remote monitoring system, 14 ... Distributed power supply.

Claims (5)

分散電源を構成する機器の振動を計測して分散電源の異常を診断する分散電源振動診断システムであって、機器の振動を計測する振動計測手段と、この振動計測手段が計測した計測信号を予め定めた基準値と比較して振動異常を判定する判定手段と、この判定手段の判定結果に基づいて試験運転条件を自動的に決定する試験運転条件決定手段と、決定された試験運転条件で分散電源を自動運転する自動運転手段とを有し、前記判定手段は運転条件を変化させたときの振動状態変化に基づいて振動異常を判定することを特徴とする分散電源振動診断システム。   A distributed power source vibration diagnosis system that measures vibrations of devices constituting a distributed power source and diagnoses an abnormality of the distributed power source. The vibration measuring unit that measures the vibrations of the device and the measurement signal measured by the vibration measuring unit Determining means for determining vibration abnormality in comparison with a set reference value, test operating condition determining means for automatically determining test operating conditions based on the determination result of the determining means, and dispersion according to the determined test operating conditions A distributed power source vibration diagnosis system comprising: automatic driving means for automatically driving a power supply, wherein the determination means determines a vibration abnormality based on a vibration state change when an operation condition is changed. 前記判定手段と前記試験運転条件決定手段とを有し、前記機器からは遠隔して配置した遠隔監視システムを有し、この遠隔監視システムと分散電源の機器との間でデータを転送するデータ転送手段を設けたことを特徴とする請求項１に記載の分散電源振動診断システム。   Data transfer having the determination means and the test operation condition determination means, having a remote monitoring system arranged remotely from the equipment, and transferring data between the remote monitoring system and the equipment of the distributed power source The distributed power supply vibration diagnosis system according to claim 1, further comprising means. 前記機器に振動異常が発生したら表示する表示手段を前記遠隔監視システムに設けたことを特徴とする請求項２に記載の分散電源振動診断システム。   3. The distributed power supply vibration diagnosis system according to claim 2, wherein display means for displaying when vibration abnormality occurs in the device is provided in the remote monitoring system. 前記機器は回転体を有するガスタービンまたはガスエンジンであり、この回転体の位相基準信号を計測する位相基準信号計測手段と、前記計測手段が計測した信号から振動状態を計算する振動状態計算手段とを有し、この振動状態計算手段は、前記計測手段が計測した振動信号について、前記位相基準信号計測手段が計測した位相基準信号から求めた回転周波数の整数倍または回転周波数の整数分の１の周波数成分の振幅と、位相基準信号との位相差とを演算することを特徴とする請求項１に記載の分散電源振動診断システム。   The apparatus is a gas turbine or a gas engine having a rotating body, phase reference signal measuring means for measuring a phase reference signal of the rotating body, and vibration state calculating means for calculating a vibration state from the signal measured by the measuring means; The vibration state calculation means has an integral multiple of the rotation frequency obtained from the phase reference signal measured by the phase reference signal measurement means or an integral fraction of the rotation frequency for the vibration signal measured by the measurement means. The distributed power supply vibration diagnosis system according to claim 1, wherein an amplitude of a frequency component and a phase difference between the phase reference signal are calculated. 前記試験運転条件決定手段が決定する運転条件は、ガスタービンまたはガスエンジンの回転速度と出力と作動ガスの流量と燃料の流量と潤滑流体の流量と冷却流体の流量の少なくともいずれかであることを特徴とする請求項４に記載の分散電源振動診断システム。

The operating condition determined by the test operating condition determining means is at least one of the rotational speed, output, working gas flow rate, fuel flow rate, lubricating fluid flow rate, and cooling fluid flow rate of the gas turbine or gas engine. The distributed power supply vibration diagnosis system according to claim 4, wherein

JP2003380600A 2003-11-11 2003-11-11 Distributed power supply vibration diagnosis system Expired - Fee Related JP4001099B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003380600A JP4001099B2 (en) 2003-11-11 2003-11-11 Distributed power supply vibration diagnosis system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003380600A JP4001099B2 (en) 2003-11-11 2003-11-11 Distributed power supply vibration diagnosis system

Publications (2)

Publication Number Publication Date
JP2005147669A JP2005147669A (en) 2005-06-09
JP4001099B2 true JP4001099B2 (en) 2007-10-31

Family

ID=34690230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003380600A Expired - Fee Related JP4001099B2 (en) 2003-11-11 2003-11-11 Distributed power supply vibration diagnosis system

Country Status (1)

Country Link
JP (1) JP4001099B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5017678B2 (en) * 2005-08-31 2012-09-05 鵬 陳山 Signal inspection method and signal inspection module
JP2008058191A (en) * 2006-08-31 2008-03-13 Jfe Steel Kk Method of diagnosing rotary machine, program therefor, and diagnosing device therefor
CN103969069B (en) * 2014-04-26 2016-02-03 常州大学 Operating condition of mechanical equipment monitoring and fault diagnosis method
JP6378231B2 (en) * 2016-03-17 2018-08-22 ファナック株式会社 Test system for performing machine tests
CN108197406B (en) * 2018-01-25 2021-04-09 北京石油化工学院 Method for evaluating explosion intensity of indoor natural gas

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01101418A (en) * 1987-10-15 1989-04-19 Toshiba Corp Diagnosing device for rotary machine
JP2001298865A (en) * 2000-04-12 2001-10-26 Nissin Electric Co Ltd Operation monitoring device for dispersed power source
JP2001324380A (en) * 2000-05-17 2001-11-22 Toshiba Corp Shaft vibration abnormality diagnostic device for rotating machine
JP2003016153A (en) * 2001-06-29 2003-01-17 Hitachi Ltd Operation controller for electric power facility
JP3708041B2 (en) * 2001-11-16 2005-10-19 株式会社東芝 Vibration diagnosis method and apparatus for rotating machine

Also Published As

Publication number Publication date
JP2005147669A (en) 2005-06-09

Similar Documents

Publication Publication Date Title
US10608564B1 (en) Universal monitor and fault detector in fielded generators and method
US9921577B2 (en) Method and system for diagnostic rules for heavy duty gas turbines
US6941785B2 (en) Electric fuel pump condition monitor system using electrical signature analysis
US6260004B1 (en) Method and apparatus for diagnosing a pump system
EP1168121A2 (en) Data acquisition for remote monitoring system and method for remote monitoring
JP2008538836A (en) Preventive maintenance methods
JP3742310B2 (en) Power generation equipment maintenance support system
EP2026159A2 (en) A method and system for automatically evaluating the performance of a power plant machine
JP4001099B2 (en) Distributed power supply vibration diagnosis system
JP2000298511A (en) Equipment diagnosing device and recording medium
JP4105852B2 (en) Remote damage diagnosis system for power generation facilities
JP2005214631A (en) State monitoring/maintaining device and method
WO2017212645A1 (en) Bearing diagnosing device and bearing diagnosing method, and rotating machine and maintenance method for same
Kalhoro et al. Remote Monitoring of Equipment Performance Through a Customized Real-Time Performance Solution
Welch et al. Electrical signature analysis (ESA) as a diagnostic maintenance technique for detecting the high consequence fuel pump failure modes
Hodowanec et al. Data Analytics-Optimization of Plant Operation Though Continuous Monitoring and Expert Level Analysis
Martin et al. Integrating vibration, motor current, and wear particle analysis with machine operating state for on-line machinery prognostics/diagnostics systems (MPROS)
Jones Three Case Studies from the UKCS Gas Compressors: Combining Rotor Dynamic and Process Data as an Aid to Diagnosis
Bonnett et al. Benchmarking electric motors before they fail
Blinov et al. Technical Condition Assessment of the Gas Turbine Units with Free Power Turbine
Grahn Utilization of a tailormade condition monitoring device for third party motors
JP2017101596A (en) Diagnosis vehicle for wind power generator and diagnosis system with diagnosis vehicle
Van Rensselar Vibration analysis: The other half of the equation
Nagel Steam Turbine Condition Monitoring (TCM)
Gupta et al. Development of low cost instrumentation to monitor coasting-down time of rotating shaft

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20051017

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20060424

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20061222

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20070724

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20070806

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100824

Year of fee payment: 3

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100824

Year of fee payment: 3

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100824

Year of fee payment: 3

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110824

Year of fee payment: 4

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120824

Year of fee payment: 5

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120824

Year of fee payment: 5

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130824

Year of fee payment: 6

LAPS Cancellation because of no payment of annual fees