JP2018081511A - Monitoring device, power generating device, monitoring method, and monitoring program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique allowing even a user lack of expert knowledge to easily notice a possibility that an abnormality of a power generator or its sign is detected, in advance before the actual detection of the abnormality or its sign.SOLUTION: In a monitoring device, a communication I/F acquires monitoring data OD representing an operating state of an emergency generator and an environment in which the emergency generator is placed from the emergency generator. Each of abnormality determining units 411, 421, 431, and 441 determines whether an abnormality or a sign of the abnormality has occurred in the emergency generator on the basis of the monitoring data OD. Each of scoring units 412, 422, 432, and 442 evaluates the soundness of the emergency generator at 25 stages on the basis of the monitoring data OD. When the abnormality determining units 411, 421, 431, and 441 determine that no abnormality or no sign of abnormality has occurred in the emergency generator, a display unit 230 displays the evaluation results of the scoring units 412, 422, 432, and 442.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a monitoring device, a power generation device, a monitoring method, and a monitoring program.

  As disclosed in Patent Document 1, there is known a monitoring device that is communicably connected to a generator and monitors the operating status of the generator. This monitoring device acquires data representing the operating status from the generator, uses the acquired data to determine whether an abnormality or a sign of abnormality has occurred in the generator, and the severity of the abnormality or sign that has occurred Judgment is made.

JP 2003-173206 A

  The said monitoring apparatus alert | reports later that the abnormality of the generator or the precursor of abnormality was detected. Therefore, the user can take measures only after the notification. In order to prevent the generator from falling into a state where an abnormality or a sign of abnormality is detected in the first place, the user needs to grasp the possibility that an abnormality or a sign of abnormality is detected.

  In this regard, the monitor of the monitoring device displays physical quantities such as the temperature, pressure, and air-fuel ratio of the generator. Therefore, a user having specialized knowledge can grasp in advance the possibility that an abnormality or a sign of abnormality is detected from these physical quantities. However, it is difficult for a user with limited expertise to grasp the possibility that an abnormality or a sign of abnormality is detected from these physical quantities.

  An object of the present invention is to provide a technology that allows even a user with limited expertise to easily grasp in advance the possibility of detecting an abnormality or a sign of abnormality before the occurrence of a sign of abnormality or abnormality of the generator. That is.

In order to achieve the above object, the monitoring device of the present invention comprises:
Obtaining means for obtaining monitoring data representing at least one of an operating status of the generator and an environment in which the generator is placed, from a generator;
An abnormality determining means for determining whether an abnormality or a sign of abnormality has occurred in the generator based on the monitoring data acquired by the acquiring means;
Based on the monitoring data acquired by the acquisition means, soundness evaluation means for evaluating the soundness of the generator in a plurality of stages,
Informing means for notifying the evaluation result of the soundness evaluation means when it is determined by the abnormality determining means that an abnormality or a sign of abnormality has not occurred in the generator;
Is provided.

  According to the present invention, before the abnormality determining unit determines that an abnormality or a sign of abnormality has occurred in the generator, the user is notified of the result of evaluating the soundness of the generator in a plurality of stages. For this reason, even users with limited expertise can easily grasp how healthy the generator is before it is detected as an abnormality or a sign of abnormality. It is possible to easily grasp in advance the possibility that a machine abnormality or a sign of abnormality will be detected.

The conceptual diagram which shows the structure of the electric power generating apparatus which concerns on Embodiment 1. 1 is a block diagram illustrating a configuration of a monitoring device according to a first embodiment. 1 is a block diagram illustrating functions of a monitoring device according to a first embodiment. The conceptual diagram which shows the display of the display part of the monitoring apparatus which concerns on Embodiment 1. FIG. Flowchart of monitoring control according to the first embodiment The conceptual diagram which shows the structure of the electric power generating apparatus which concerns on Embodiment 2. FIG.

  Hereinafter, with reference to the drawings, an embodiment of a power generator provided with the monitoring device will be described by taking as an example a case where the generator to be monitored is an emergency generator that generates power in an emergency. In the figure, the same or corresponding parts are denoted by the same reference numerals.

[Embodiment 1]
As shown in FIG. 1, the power generation device 300 according to the present embodiment includes an emergency generator 100 that generates power in an emergency, and a monitoring device 200 that remotely monitors the emergency generator 100. The emergency generator 100 is activated when a power failure or power shortage occurs in the commercial power supply, and supplies power to the load LD instead of the commercial power supply. The load LD refers to, for example, an electric device installed in a building, factory, hospital, or the like. The monitoring device 200 monitors the operation status of the emergency generator 100 when a power failure or power shortage occurs in the commercial power supply or when the emergency generator 100 is operated on a trial basis for maintenance.

  The emergency generator 100 includes a power generation unit 110 that generates electric power when driven, and a prime mover 120 that drives the power generation unit 110. The prime mover 120 operates by burning fuel and generates kinetic energy. The electric power generation unit 110 converts the kinetic energy generated by the prime mover 120 into electric power by electromagnetic induction. The electric power generated by the electric power generation unit 110 is supplied to the load LD.

  The emergency generator 100 includes a measuring instrument group 130 that measures various physical quantities in the emergency generator 100 and a control unit that controls the power generation unit 110 and the prime mover 120 using the measurement results of the measuring instrument group 130. 140.

  As shown in FIG. 3, the measuring instrument group 130 includes a room temperature measuring instrument 131 that measures the room temperature of the accommodation room that houses the power generation unit 110 and the prime mover 120, a humidity measuring instrument 132 that measures the humidity of the accommodation room, An exhaust temperature measuring device 133 that detects the temperature of the exhaust gas of the prime mover 120, a rotational speed measuring device 134 that detects the rotational speed of the prime mover 120, and an oil temperature measuring device 135 that detects the temperature of the lubricating oil inside the prime mover 120, The vibration measuring device 136 that measures the amplitude of vibration of the prime mover 120 and the voltage / current measuring device 137 that measures the voltage and current output from the power generation unit 110 are included. Hereinafter, returning to FIG.

  When a commercial power supply has a power outage or power shortage, or when maintenance is performed, the control unit 140 is monitored through the communication line NE when an external trigger signal indicating that the emergency generator 100 should be started is given. A start signal is output to the apparatus 200, a start command is output to the prime mover 120, and the prime mover 120 is instructed to start.

  In addition, the control unit 140 generates power using the measurement result of the voltage / current measuring device 137 so that the voltage and current output from the power generation unit 110 converge to target values while the prime mover 120 is operating. The unit 110 and the prime mover 120 are controlled.

  The control unit 140 outputs a stop command to the prime mover 120 when an external trigger signal is given to the emergency generator 100 to stop power generation when the commercial power supply is restored or maintenance is completed. Then, the motor 120 is instructed to stop.

  A monitoring device 200 is connected to the control unit 140 via a communication line NE. As the communication line NE, a standard such as Ethernet (registered trademark) or RS485 can be used. In addition to the role of controlling the power generation unit 110 and the prime mover 120, the control unit 140 communicates monitoring data OD indicating the operating status of the emergency generator 100 and the environment in which the emergency generator 100 is placed. It also plays a role of outputting to the monitoring apparatus 200 through the line NE.

  The monitoring data OD includes data representing various physical quantities measured by the measuring instrument group 130 and data representing the control operation of the control unit 140. Specifically, as shown in FIG. 3, the monitoring data OD is transmitted at the timing when the control unit 140 outputs the start command to the prime mover 120 and the data representing the measurement results of the measuring instruments 131 to 137. Start command data SD, and stop command data RD transmitted at the timing when the control unit 140 outputs the stop command to the prime mover 120. Hereinafter, returning to FIG.

  The monitoring device 200 monitors the emergency generator 100 using the monitoring data OD. Since the emergency generator 100 needs to transmit power in an emergency, it is ideal that it is always sound. For this reason, it is desirable to perform maintenance of the emergency generator 100 without causing the emergency generator 100 to fall into a situation where an abnormality or a sign of abnormality is detected in the first place.

  Therefore, the monitoring device 200 facilitates in advance the possibility that an abnormality or a sign is detected before the emergency generator 100 falls into a state where an abnormality or a sign of abnormality is detected in order to prompt the user to perform early maintenance. The greatest feature is a configuration for performing monitoring control that can make the user aware of the above. Hereinafter, the configuration of the monitoring apparatus 200 will be described in detail with reference to FIG.

  As shown in FIG. 2, the monitoring device 200 uses a communication I / F (InterFace) 210 as an acquisition unit that acquires the monitoring data OD from the control unit 140 through the communication line NE, and the acquired monitoring data OD. And a CPU (Central Processing Unit) 270 that performs monitoring control for monitoring the soundness of the emergency generator 100, a RAM (Random Access Memory) 220 as a main memory of the CPU 270, and a nonvolatile storage medium. A storage unit 250, a display unit 230 as a notification unit that notifies the user of the result of the monitoring control by the CPU 270, and an input unit 240 including a touch screen, a keyboard, and a mouse on the display unit 230. It has a configuration connected by a bus 260.

  The storage unit 250 includes a monitoring program 251 that describes the monitoring control procedure for scoring the soundness of the emergency generator 100 and determining the presence or absence of an abnormality or abnormality, and the presence or absence of an abnormality or abnormality. Reference value data 252 representing various reference values necessary for determination and soundness scoring, weight coefficient data 253 representing the importance of the evaluation viewpoint for each evaluation viewpoint of the scoring, past scoring results and past monitoring data It stores past data 254 consisting of OD.

  The reference value data 252 is created in advance based on the monitoring data OD at the time when the emergency generator 100 was introduced. As a result, the soundness of the current emergency generator 100 can be evaluated based on the soundness of the emergency generator 100 at the time of introduction. However, the reference value data 252 can be edited afterwards if necessary.

  Specifically, the evaluation point of the above-mentioned scoring includes the operating environment in which the emergency generator 100 is placed, the starting operation of the emergency generator 100 when starting power generation, and the emergency when stopping power generation The stop operation of the power generator 100 and the power generation operation of the emergency generator 100 during power generation are indicated.

  As shown in FIG. 3, the weight coefficient data 253 includes a weight coefficient 253a representing the importance of the driving environment, a weight coefficient 253b representing the importance of the start operation, and a weight coefficient 253c representing the importance of the stop operation. , And a weighting coefficient 253d representing the importance of the power generation operation. Each of the weighting factors 253a to 253d is a real number exceeding 0 and equal to or less than 1. Each of the weighting factors 253a to 253d represents that the smaller the value, the higher the importance of the evaluation viewpoint.

  The user can set the weighting factors 253a to 253d using the input unit 240 as a weight setting unit, and can change the once set weighting factors 253a to 253d using the input unit 240.

  The CPU 270 functions as each unit illustrated in FIG. 3 by executing the monitoring program 251. Hereinafter, the function of the monitoring apparatus 200 realized by the CPU 270 will be described with reference to FIG.

  As shown in FIG. 3, the monitoring device 200 has a function as an activation determination unit 400 that determines whether or not the emergency generator 100 has been activated. The control unit 140 of the emergency generator 100 displays a start signal SS indicating that the emergency generator 100 is started when a power failure or power shortage occurs in the commercial power supply or when maintenance is performed. Output to. The activation determination unit 400 detects that the emergency generator 100 has been activated based on the activation signal SS.

  Further, the monitoring device 200 is assumed to operate when the activation determination unit 400 determines that the emergency generator 100 has been activated. (A) An operating environment that monitors the environment in which the emergency generator 100 is placed A monitoring unit 410; (b) a starting operation monitoring unit 420 that monitors an operation when the emergency generator 100 is started; and (c) a stopping operation monitoring unit 430 that monitors an operation when the emergency generator 100 is stopped. ) It has a function as a power generation operation monitoring unit 440 that monitors the operation of the emergency generator 100 during power generation. The monitoring device 200 also has a function as a display control unit 450 that controls the display unit 230 based on the monitoring results of the monitoring units 410 to 440. Hereinafter, each of the above parts will be described in detail.

(A) About the driving environment monitoring unit 410 The driving environment monitoring unit 410 uses the start command data SD, the measurement result of the room temperature measuring instrument 131, and the measurement result of the humidity measuring instrument 132 in the monitoring data OD, and is used for emergency. From the viewpoint of the environment where the generator 100 is placed, an abnormality determination unit 411 that determines whether an abnormality or a sign of abnormality has occurred in the emergency generator 100, and from the viewpoint of the environment, the emergency generator 100 And a scoring unit 412 as a soundness evaluation means for evaluating the soundness of a plurality of stages. This will be specifically described below.

  (A1) In the emergency generator 100, the prime mover 120 is in a state in which the lubricating oil is not distributed in detail if the elapsed time from the time when the last fuel consumption is finished (hereinafter referred to as the operation interval) is too long. Prone to seizure. Therefore, the operation interval is an index for evaluating the soundness of the emergency generator 100. That is, as the operation interval is longer, the emergency generator 100 is in a less healthy state. Therefore, the driving environment monitoring unit 410 determines the driving interval based on the time difference between the current start instruction time specified by the start command data SD and the previous stop instruction time specified by the past data 254 stored in the storage unit 250. Has an operation interval calculation unit 413 that approximately obtains.

  The abnormality determination unit 411 determines whether or not the operation interval calculated by the operation interval calculation unit 413 exceeds one month. The numerical value of one month is included in the reference value data 252 shown in FIG. If the operation interval is longer than one month, the abnormality determination unit 411 outputs an alarm signal to the display control unit 450 assuming that a sign of abnormality has occurred. The display control unit 450 causes the display unit 230 to display that a sign of abnormality has occurred.

  (A2) Moreover, in the emergency generator 100, if the room temperature of the accommodation room for accommodating the prime mover 120 is too high, an abnormality in the air supply and ventilation equipment is suspected. On the other hand, if the room temperature of the storage chamber is too low, there is a concern about stress on the prime mover 120 due to fuel hardening or overcooling of the prime mover 120. For this reason, the room temperature of the storage room is an index for evaluating the soundness of the emergency generator 100.

  Therefore, the abnormality determination unit 411 also determines whether or not the measurement result of the room temperature measuring device 131 is within the design temperature range. This design temperature range is included in the reference value data 252 shown in FIG. If the measurement result of the room temperature measuring device 131 is outside the design temperature range, the abnormality determination unit 411 outputs an alarm signal to the display control unit 450 assuming that a sign of abnormality has occurred. The display control unit 450 causes the display unit 230 to display that a sign of abnormality has occurred.

  (A3) Moreover, when the humidity of the storage chamber is too high, the insulation performance of various members is reduced, and breakdown due to dielectric breakdown is likely to occur. For this reason, the humidity of the storage room is an index for evaluating the soundness of the emergency generator 100.

  Therefore, the abnormality determination unit 411 also determines whether or not the measurement result of the humidity measuring device 132 is less than the design humidity. This set humidity is included in the reference value data 252 shown in FIG. If the measurement result of the humidity measuring device 132 is equal to or higher than the set humidity, the abnormality determination unit 411 outputs an alarm signal to the display control unit 450 as an indication that an abnormality has occurred. The display control unit 450 causes the display unit 230 to display that a sign of abnormality has occurred.

  (A4) On the other hand, when an alarm signal is not output by each determination of the abnormality determination unit 411, the scoring unit 412 shifts to soundness scoring. First, the scoring unit 412 is higher as the operation interval calculated by the operation interval calculation unit 413 is shorter, and higher as the difference from the ideal value of the room temperature measured by the room temperature measuring device 131 is smaller. The lower the humidity measured by the measuring instrument 132 is, the higher the health is scored. The ideal room temperature value is included in the reference value data 252 shown in FIG.

  Next, the scoring unit 412 multiplies the scoring result by a weighting factor 253a. Then, the scoring unit 412 outputs the score obtained by multiplying the weighting factor 253a to the display control unit 450. The display control unit 450 causes the display unit 230 to display the score.

(B) About the Start Operation Monitoring Unit 420 The start operation monitoring unit 420 uses the measurement result of the exhaust temperature measuring device 133 and the rotation number measuring device 134 and the start command data SD in the monitoring data OD, and generates an emergency generator. From the viewpoint of the starting operation of 100, the abnormality determination unit 421 for determining whether or not an abnormality or a sign of abnormality has occurred in the emergency generator 100, and the soundness of the emergency generator 100 from the viewpoint of the starting operation. And a scoring unit 422 as soundness evaluation means for evaluating in a plurality of stages. This will be specifically described below.

  (B1) In the emergency generator 100, if the temperature of the exhaust gas at the start of the prime mover 120 is too low, there is a high possibility that incomplete combustion has occurred in the prime mover 120. If the temperature of the exhaust gas is too high, There may be excessive combustion in the prime mover 120. For this reason, the temperature of the exhaust gas when starting the prime mover 120 is an index for evaluating the soundness of the emergency generator 100.

  Therefore, the abnormality determination unit 421 determines whether or not the measurement result of the exhaust temperature measuring device 133 is within the design temperature range. This design temperature range is included in the reference value data 252 shown in FIG. If the measurement result of the exhaust gas temperature measuring device 133 is outside the design temperature range, the abnormality determination unit 421 outputs an alarm signal to the display control unit 450 assuming that a sign of abnormality has occurred. The display control unit 450 causes the display unit 230 to display that a sign of abnormality has occurred.

  (B2) In the emergency generator 100, the time from when the prime mover 120 receives the start command until the rotational speed of the prime mover 120 reaches a predetermined start completion value (hereinafter referred to as start time). ) Is too short, there is a concern about excessive starter current and fuel supply to the prime mover 120. On the other hand, if the start-up time is too long, there is a concern that various members may be deteriorated and foreign matter may be caught in the rotating mechanism of the prime mover 120, and power transmission within 40 seconds determined by the Fire Service Act may not be achieved. For this reason, the start time is an index for evaluating the soundness of the emergency generator 100.

  Therefore, the start operation monitoring unit 420 starts the rotation speed of the prime mover 120, which is specified by the start instruction data SD, the time point when the start instruction is issued to the prime mover 120, and the measurement result of the rotation speed measuring device 134. A start time calculation unit 423 that obtains the start time based on the time difference from the time when the completion value is reached is provided.

  The abnormality determination unit 421 determines whether or not the start time calculated by the start time calculation unit 423 is within the design range. The design range of the start time is included in the reference value data 252 shown in FIG. If the start time is outside the design range, the abnormality determination unit 421 outputs an alarm signal to the display control unit 450 assuming that a sign of abnormality has occurred. The display control unit 450 causes the display unit 230 to display that a sign of abnormality has occurred.

  (B3) On the other hand, when an alarm signal is not output in each determination of the abnormality determination unit 421, the scoring unit 422 shifts to soundness scoring. The scoring unit 422 first scores higher soundness as the difference from the ideal value of the exhaust gas temperature measured by the exhaust gas temperature measuring device 133 is smaller and higher as the difference from the ideal value of the start time is smaller. . Note that the ideal value of the exhaust gas temperature and the ideal value of the start time are included in the reference value data 252 shown in FIG.

  Next, the scoring unit 422 multiplies the scoring result by a weighting factor 253b. Then, the scoring unit 422 outputs the score obtained by multiplying the weighting factor 253b to the display control unit 450. The display control unit 450 causes the display unit 230 to display the score.

(C) About the stop operation monitoring unit 430 The stop operation monitoring unit 430 uses the measurement result of the rotation speed measuring device 134 and the stop command data RD in the monitoring data OD to stop the operation of the emergency generator 100. From the viewpoint, an abnormality determination unit 431 that determines whether an abnormality or a sign of abnormality has occurred in the emergency generator 100, and the soundness of the emergency generator 100 is evaluated in a plurality of stages from the viewpoint of the stop operation. And a scoring unit 432 as soundness evaluation means. This will be specifically described below.

  (C1) In the emergency generator 100, the time required for the rotational speed of the prime mover 120 to decrease to a predetermined stop completion value from the time when the prime mover 120 receives the stop command (hereinafter referred to as stop time). If it is too short, there is a possibility that foreign matter is caught in the rotating mechanism of the prime mover 120 or friction between members occurs. On the other hand, if the stop time is too long, the components of the prime mover 120 may be deteriorated or the control by the control unit 140 may be abnormal. Therefore, the stop time is an index for evaluating the soundness of the emergency generator 100.

  Therefore, the stop operation monitoring unit 430 stops the rotation speed of the prime mover 120 specified by the stop instruction data RD, the time point when the stop instruction is issued to the prime mover 120, and the measurement result of the rotation speed measurement device 134. A stop time calculation unit 433 is provided that obtains a stop time based on a time difference from the time point when the value drops to the completion value.

  The abnormality determination unit 431 determines whether or not the stop time calculated by the stop time calculation unit 433 is within the design range. The design range of this stop time is included in the reference value data 252 shown in FIG. If the stop time is out of the design range, the abnormality determination unit 431 outputs an alarm signal to the display control unit 450 assuming that a sign of abnormality has occurred. The display control unit 450 causes the display unit 230 to display that a sign of abnormality has occurred.

  (C2) On the other hand, when an alarm signal is not output in each determination of the abnormality determination unit 431, the scoring unit 432 shifts to soundness scoring. The scoring unit 432 first scores higher soundness as the difference from the ideal value of the stop time is smaller. The ideal value of the stop time is included in the reference value data 252 shown in FIG.

  Next, the scoring unit 432 multiplies the scoring result by a weighting factor 253c. Then, the scoring unit 432 outputs the score obtained by multiplying the weighting factor 253c to the display control unit 450. The display control unit 450 causes the display unit 230 to display the score.

(D) About the power generation operation monitoring unit 440 The power generation operation monitoring unit 440 displays the measurement result of the oil temperature measuring device 135, the measurement result of the vibration measuring device 136, and the measurement result of the current / voltage measuring device 137 in the monitoring data OD. And from the viewpoint of the power generation operation of the emergency power generator 100, an abnormality determination unit 441 for determining whether or not an abnormality or a sign of abnormality has occurred in the emergency power generator 100; And a scoring unit 442 as soundness evaluation means for evaluating the soundness of the generator 100 in a plurality of stages. This will be specifically described below.

  (D1) If the temperature of the lubricating oil in the prime mover 120 is too high, the cooling system that cools the prime mover 120 may be abnormal. For this reason, the temperature of the lubricating oil is an index for evaluating the soundness of the emergency generator 100.

  Therefore, the abnormality determination unit 441 determines whether or not the temperature of the lubricating oil measured by the oil temperature measuring device 135 is lower than the design temperature. This design temperature is included in the reference value data 252 shown in FIG. If the temperature of the lubricating oil is equal to or higher than the design temperature, the abnormality determination unit 441 outputs an alarm signal to the display control unit 450 assuming that a sign of abnormality has occurred. The display control unit 450 causes the display unit 230 to display that a sign of abnormality has occurred.

  (D2) Moreover, when the vibration of the emergency generator 100 is too large, there is a concern that abnormal pressure is generated in the prime mover 120 or the components of the prime mover 120 or the power generation unit 110 are missing. Is done. For this reason, the amplitude of the vibration of the emergency generator 100 is an index for evaluating the soundness of the emergency generator 100.

  Therefore, the abnormality determination unit 441 also determines whether or not the vibration amplitude measured by the vibration measuring device 136 is less than the design value. This amplitude setting value is included in the reference value data 252 shown in FIG. If the amplitude of vibration is greater than or equal to the set value, the abnormality determination unit 441 outputs an alarm signal to the display control unit 450 assuming that an abnormality sign has occurred. The display control unit 450 causes the display unit 230 to display that a sign of abnormality has occurred.

  (D3) Moreover, when the electric power output from the power generation unit 110 to the load LD fluctuates excessively, there is a concern that the power generation unit 110 or the control unit 140 may be out of order. For this reason, the fluctuation of the power output from the power generation unit 110 is an index for evaluating the soundness of the emergency generator 100.

  Therefore, the abnormality determination unit 441 uses the measurement result of the current / voltage measuring device 137 to determine whether or not the current difference value indicating the fluctuation of the current output from the power generation unit 110 to the load LD is less than the set value. It is also determined whether or not the voltage difference value representing the fluctuation of the voltage output from the power generation unit 110 to the load LD is less than the set value. Note that the set values of the current difference value and the voltage difference value are included in the reference value data 252 shown in FIG. If the current difference value is greater than or equal to the set value, or if the voltage difference value is greater than or equal to the set value, the abnormality determination unit 441 outputs an alarm signal to the display control unit 450 as an indication that an abnormality has occurred. The display control unit 450 causes the display unit 230 to display that a sign of abnormality has occurred.

  (D4) On the other hand, when an alarm signal is not output in each determination of the abnormality determination unit 441, the scoring unit 442 shifts to soundness scoring. First, the scoring unit 442 is higher as the temperature of the lubricating oil measured by the oil temperature measuring device 135 is lower and higher as the vibration amplitude measured by the vibration measuring device 136 is smaller, and is output to the load LD. The higher the current difference value and the voltage difference value representing the wobbling, the higher the value, and the soundness is scored.

  Next, the scoring unit 442 multiplies the scoring result by a weighting factor 253d. Then, the scoring unit 442 outputs the score obtained by multiplying the weighting factor 253d to the display control unit 450. The display control unit 450 causes the display unit 230 to display the score.

  Further, the display control unit 450 outputs from the scoring unit 412, the score multiplied by the weighting factor 253 a, the score output from the scoring unit 422, the score multiplied by the weighting factor 253 b, and output from the scoring unit 432. Control is also performed to add the score multiplied by the weighting factor 253c and the score multiplied by the weighting factor 253d output from the scoring unit 442, and display the added result on the display unit 230.

  Hereinafter, with reference to FIG. 4, the display mode on the display unit 230 of the scoring results of the scoring units 412, 422, 432, and 442 will be specifically described.

  As shown in FIG. 4, the display unit 230 displays the scores scored by the scoring units 412, 422, 432, and 442 in the “Current Score Breakdown” column, and the operating environment, starting operation, power generation operation, and A total of four evaluation viewpoints for the stop operation are displayed. The score distribution to each evaluation viewpoint is 25 points. That is, each of the scoring units 412, 422, 432, and 442 evaluates the soundness of the emergency generator 100 to 25 levels, and scores how many points out of 25 points.

  In addition, the display unit 230 displays the result of adding the scoring results for all evaluation viewpoints in the “scoring this time” column. Since the score distribution to each evaluation viewpoint is 25 points, the “currently scored” column displays how many points out of 100 points the soundness of the emergency generator 100 is.

  In this way, since the score out of 100 points is displayed, even a user who lacks expertise can intuitively grasp the soundness of the emergency generator 100. In addition, since the breakdown of the score is displayed for each evaluation viewpoint, even a user with limited expertise can easily grasp the soundness of the emergency generator 100 for each evaluation viewpoint.

  The display unit 230 also displays the previous total score in the “last score” column. For this reason, even a user who lacks expert knowledge can easily grasp in advance the possibility of occurrence of an abnormality or an abnormality sign before the occurrence of an abnormality or an abnormality sign due to a change in the score. In the “last score breakdown” column, the previous scoring results for the above four evaluation viewpoints are also displayed. For this reason, even a user who lacks expertise can easily grasp from what evaluation viewpoint an abnormality or a sign of abnormality may occur.

  In addition, the date / time when the emergency generator 100 was started this time is displayed in the “start date / time” column, and the date / time when the emergency generator 100 was stopped this time is displayed in the “stop date / time” column. The display mode illustrated in FIG. 4 described above is realized by the display control unit 450 controlling the display unit 230.

  Next, a monitoring control procedure performed by the monitoring apparatus 200 will be described with reference to FIG. As described above, the monitoring device 200 is particularly characterized in the operation of presenting the soundness scoring result before the emergency generator 100 has an abnormality or a sign of abnormality. Therefore, in FIG. 5, in order to facilitate understanding, the processing when the abnormality determination units 411, 421, 431, and 441 output an alarm signal is not illustrated.

  As shown in FIG. 5, in the monitoring apparatus 200, when the activation determination unit 400 receives the activation signal SS from the emergency generator 100 and determines that the emergency generator 100 has been activated (step S11; YES), an emergency Acquisition of the monitoring data OD from the power generator 100 starts. In addition, the case where the emergency generator 100 is started refers to the case where a power failure or power shortage occurs in the commercial power supply or the maintenance of the emergency generator 100 is performed.

  First, in the monitoring device 200, the display control unit 450 acquires the previous scoring result of the past data 254 from the storage unit 250, and displays it on the display unit 230 (step S12). As a result, the past score for each evaluation viewpoint is displayed on the display unit 230 in the “last score breakdown” column shown in FIG. Further, the display control unit 450 displays the current start date / time specified by the start command data SD included in the monitoring data OD in the “start date / time” column shown in FIG. 4.

  Next, in the driving environment monitoring unit 410, when the abnormality determination unit 411 does not output an alarm signal, the scoring unit 412 is measured by the driving interval calculated by the driving interval calculation unit 413 and the room temperature measuring device 131. The soundness of the operating environment of the emergency generator 100 is scored using the room temperature of the storage room, the humidity of the storage room measured by the humidity measuring device 132, and the weighting factor 253a (step S13). The display control unit 450 displays the scoring result of the scoring unit 412 on the display unit 450.

  Specifically, the scoring result of the scoring unit 412 is displayed in the “operating environment” column of “current score breakdown” shown in FIG. Thereby, the user can easily determine the possibility that an abnormality or a sign of abnormality will occur with respect to the operating environment of the emergency generator 100 due to a change in the current scoring result for the operating environment from the previous scoring result. When the user confirms a decrease in the soundness of the driving environment due to a decrease in the score for the driving environment, the user replenishes the prime mover 100 with lubricant, reduces the humidity of the storage chamber that houses the prime mover 100, Measures can be taken to optimize the room temperature and maintain the ventilation system in the containment room.

  Next, in the emergency generator 100, when the number of revolutions of the prime mover 120 reaches the start completion value and the start of the prime mover 120 is completed (step S14; YES), the abnormality determination unit 421 in the start operation monitoring unit 420 When the alarm signal is not output, the scoring unit 422 uses the start time calculated by the start time calculation 423, the exhaust gas temperature at the start of the prime mover 120 measured by the exhaust temperature measuring device 133, and the weighting factor 253b. Are used to score the soundness of the starting operation of the emergency generator 100 (step S15). The display control unit 450 causes the display unit 230 to display the scoring result of the scoring unit 422.

  Specifically, the scoring result of the scoring unit 422 is displayed in the “starting operation” column of “current score breakdown” shown in FIG. Thereby, the user can easily determine the possibility of occurrence of an abnormality or a sign of abnormality regarding the start-up operation of the emergency generator 100 due to the change of the current scoring result with respect to the start-up operation from the previous scoring result. When the user confirms a decrease in soundness of the starting operation due to a decrease in the score for the starting operation, the user can take measures to replace parts of the prime mover 120 such as the ignition mechanism and the fuel injection mechanism.

  Next, in the power generation operation monitoring unit 440, when the abnormality determination unit 441 does not output an alarm signal, the scoring unit 442 determines the lubricating oil temperature of the prime mover 120 measured by the oil temperature measuring device 135 and the vibration measuring device 136. The fluctuation of the current value and the voltage value output from the power generation unit 110, and the weighting factor 253d, which are specified by the difference between the vibration amplitude of the prime mover 120 measured in step 1 and the measurement result of the voltage / current measuring device 137, are used. Then, the soundness of the power generation operation of the emergency generator 100 is scored (step S16). The display control unit 450 causes the display unit 230 to display the scoring result of the scoring unit 442.

  Specifically, the scoring result of the scoring unit 442 is displayed in the “power generation operation” column of “current score breakdown” shown in FIG. Thereby, the user can easily determine the possibility of occurrence of an abnormality or a sign of abnormality regarding the power generation operation of the emergency generator 100 due to a change in the current scoring result for the power generation operation from the previous scoring result. When the user confirms a decrease in soundness of the power generation operation due to a decrease in the score for the power generation operation, the user checks the cooling mechanism for cooling the lubricating oil of the prime mover 120 and the assembly state of the prime mover 120, or checks the power generation unit 110 You can take measures.

  Next, when the operation of the emergency generator 100 is continued (step S17; NO), the process returns to step S16 again. In this way, during operation of the emergency generator 100, the soundness scoring result of the power generation operation is updated as needed, and the new scoring result is always displayed on the display unit 230.

  Next, when the operation of the emergency generator 100 is stopped (step S17; YES), that is, the stop command data indicating that the monitoring device 200 has output a stop command from the emergency generator 100 to the prime mover 120. When the RD is acquired, the process waits until the rotational speed of the prime mover 120 reaches the stop completion value.

  When the stop of the prime mover 120 is completed due to the rotation speed of the prime mover 120 reaching the stop completion value (step S18; YES), in the stop action monitoring unit 430, when the abnormality determination unit 431 does not output an alarm signal, the scoring unit 432 scores the soundness of the stop operation of the emergency generator 100 using the stop time calculated by the stop time calculation unit 433 and the weighting factor 253c (step S19). The display control unit 450 causes the display unit 230 to display the scoring result of the scoring unit 432.

  Specifically, the scoring result of the scoring unit 432 is displayed in the “stop operation” field of “current score breakdown” shown in FIG. Thereby, the user can easily determine the possibility of occurrence of an abnormality or a sign of abnormality regarding the stop operation of the emergency generator 100 due to the change of the current scoring result with respect to the stop operation from the previous scoring result. When the user confirms a decrease in soundness of the stop operation due to a decrease in the score for the stop operation, the user can take measures such as replacing parts of the rotation mechanism of the prime mover 120.

  This completes the monitoring control. As described above, the soundness is scored every time the emergency generator 100 is operated. Also, the scoring results are updated as needed during operation of the emergency generator 100.

  According to the embodiment described above, the following effects can be obtained.

  (1) Before the abnormality determination units 411, 421, 431, and 441 determine that an abnormality or a sign of abnormality has occurred in the emergency generator 100, the soundness of the emergency generator 100 is evaluated in 100 stages. The score representing the result is displayed on the display unit 230 of the monitoring device 200. For this reason, even if the user has limited expertise, the display of the display unit 230 indicates which of the emergency generators 100 before the abnormality determination unit 411, 421, 431, and 441 detects an abnormality or a sign of abnormality. Whether the emergency generator 100 is abnormal or a sign of abnormality can be easily detected in advance by changing the number of points indicated each time the emergency generator 100 is operated. .

  A specific example will be described. It is assumed that the allowable range of the starting time of the prime mover 120 is 20 seconds or more and 40 seconds or less. If the current start time is 35 seconds compared to the previous start time of 30 seconds, the extended start time suggests that the soundness of the emergency generator 100 is reduced. Since both 30 seconds and 35 seconds are within the allowable range, the abnormality determination unit 421 does not detect a sign of abnormality. That is, the abnormality determination unit 421 does not output an alarm signal. Therefore, in the conventional case where the scoring unit 422 is not provided, it is difficult for the user to notice this decrease in soundness. On the other hand, in this embodiment, if the ideal value of the starting time is 30 seconds, the scoring unit 422 shows a scoring result that is lower this time than the previous time. Therefore, even a user who lacks expert knowledge easily notices that the soundness of the emergency generator 100 has decreased.

  When the user notices that the soundness of the emergency generator 100 has deteriorated, that is, when it is determined that there is a possibility that the emergency generator 100 may have an abnormality or a sign of abnormality, it is checked by a maintenance specialist. Measures can be taken, such as requesting or performing inspections or replacing parts. Thus, by performing maintenance of the emergency generator 100 before the occurrence of an abnormality or a sign of abnormality, it is possible to suppress the emergency generator 100 from falling into a situation where a sign of abnormality or abnormality has occurred, It is possible to prevent the emergency generator 100 from leading to a serious failure.

  If the scoring units 412, 422, 432, and 442 are not provided, the abnormality determination unit 411, 421, 431, or 441 generates an alarm signal only when an abnormality or a sign of abnormality occurs in the emergency generator 100. The output is displayed on the display unit 230. For this reason, the user needs to perform maintenance immediately. On the other hand, in this embodiment, when the user notices a decrease in the soundness of the emergency generator 100 based on the scoring results of the scoring units 412, 422, 432, or 442, there is still an abnormality or a sign of abnormality. Because it is not done, maintenance can be performed with a margin. By starting maintenance early, it is possible to procure parts to be replaced with sufficient margin.

  (2) Each of the scoring units 412, 422, 432, and 442 evaluated the soundness of the emergency generator 100 in 25 levels as a breakdown of the 100-point scale representing the soundness of the emergency generator 100. A result is displayed on the display part 230 according to four evaluation viewpoints, such as a driving | running environment, starting operation | movement, stop operation | movement, and electric power generation operation | movement. For this reason, even a user who lacks expert knowledge can easily grasp which part of the emergency generator 100 has deteriorated in soundness.

  (3) The scoring result of the soundness of the emergency generator 100 is not only in the case of a power failure or power shortage in the commercial power supply, but also in the case of maintenance operation in which the emergency generator 100 is operated on a trial basis for maintenance. Is also presented. Presenting a scoring result every maintenance operation is expected to promote friendliness of maintenance operation, prompt the user for maintenance operation, and increase the frequency of maintenance operation.

  (4) Since the weighting coefficients 253a to 253d representing the importance of the evaluation viewpoint are set for each evaluation viewpoint of scoring, the weighting coefficients 253a to 253d are set to be smaller corresponding to the evaluation viewpoint that is regarded as important. By doing so, scoring for the evaluation viewpoint can be tightened. As a result, an appropriate scoring result can be presented according to the model and installation status of the emergency generator 100 or the user's intention. Note that the weighting factors 253a to 253d once set can be flexibly adjusted by the input unit 240 in accordance with a change in the installation state of the emergency generator 100 or a change in the user's intention.

[Embodiment 2]
In the above embodiment, the monitoring device 200 is connected to the emergency generator 100 via the communication line NE. However, the monitoring apparatus 200 is configured to remotely monitor the emergency generator 100, but not via the communication line NE. In addition, the power generation device 300 may incorporate the function of the monitoring device 200. Specific examples will be described below.

  As shown in FIG. 6, in the power generation device 300 ′ according to the present embodiment, the control unit 140 of the emergency generator 100 and the monitoring device 200 ′ are connected by an internal bus 260. The monitoring apparatus 200 ′ according to the present embodiment includes a connection I / F as an acquisition unit that acquires the monitoring data OD from the control unit 140 instead of the communication I / F 210 illustrated in FIG. 2. Since the other configuration is the same as that of the first embodiment, the description thereof is omitted.

  According to the present embodiment, in addition to the effect of the first embodiment, there is an effect that the user can check the soundness of the emergency generator 100 at the place where the emergency generator 100 is installed.

  The embodiment of the present invention has been described above. The present invention is not limited to this, and modifications described below are possible.

  In each of the above embodiments, only when the abnormality determination units 411, 421, 431, and 441 do not output an alarm signal, that is, when it is determined that no abnormality or a sign of abnormality has occurred in the emergency generator 100. In addition, the scoring result is displayed on the display unit 230, but when the abnormality determination units 411, 421, 431, and 441 output an alarm signal, it is combined with the fact that an abnormality or a sign of abnormality has occurred. The scoring result may be displayed on the display unit 230.

  In the above-described embodiment, prior to scoring of soundness by the scoring units 412, 422, 432, and 442, determination by the abnormality determination units 411, 421, 431, and 441 (hereinafter referred to as abnormal sign determination) is performed. However, soundness scoring and abnormality sign determination may be performed in parallel, or abnormality sign determination may be performed after soundness scoring is performed first. In the latter case, the abnormality sign determination may be performed based on the soundness scoring result.

  In the above-described embodiment, the monitoring environment data OD indicating the operation status of the emergency generator 100 and the environment where the emergency generator 100 is placed is used to select four of the operating environment, start operation, stop operation, and power generation operation. The soundness of the emergency generator 100 was scored from one evaluation point of view. Scoring may be performed on evaluation viewpoints other than these, or scoring may be performed only on some of the evaluation viewpoints. When scoring only the operating environment, the monitoring data OD may be composed of only data representing the environment where the emergency generator 100 is placed. When scoring only the start operation, the stop operation, or the power generation operation, the monitoring data OD may include only data representing the operating status of the emergency generator 100.

  In the above embodiment, the soundness of the emergency generator 100 is evaluated in 100 stages, but the number of stages to be evaluated is not particularly limited. For example, it may be evaluated in 10 levels or in 3 levels. Further, in the above embodiment, the results evaluated in a plurality of stages are displayed as scores. However, if the evaluation results can be discriminated, characters, figures, symbols, colors, or a combination thereof can be used instead of the scores. May be displayed. Moreover, you may output an evaluation result as a sound using a speaker. The evaluation result may be notified to the user in a discriminable form.

  In the above embodiment, the weights indicating the importance of the evaluation viewpoint are specified as the weighting coefficients 253a to 253d. However, the weights do not necessarily have to be directly specified as numerical values. The user may select a desired weight in a pull-down format using the input unit 240.

  In the emergency generator 100, the type of the prime mover 120 is not particularly limited. The prime mover 120 may be a diesel engine or a gas turbine.

  By installing the monitoring program 251 in the computer, the computer can also function as the monitoring device 200. The distribution method of the monitoring program 251 is arbitrary, and may be distributed via a communication line, or may be distributed by being stored in a computer-readable recording medium such as an optical disk, a magneto-optical disk, or a flash memory.

  DESCRIPTION OF SYMBOLS 100 ... Emergency generator (generator), 110 ... Electric power generation part, 120 ... Motor | power_engine, 130 ... Measuring device group, 131 ... Room temperature measuring device, 132 ... Humidity measuring device, 133 ... Exhaust temperature measuring device, 134 ... Number of rotations Measuring instrument, 135 ... Oil temperature measuring instrument, 136 ... Vibration measuring instrument, 137 ... Voltage / current measuring instrument, 140 ... Control unit, 200, 200 '... Monitoring device, 210 ... Communication I / F (acquisition means), 220 ... RAM , 230 ... display unit (notification unit), 240 ... input unit (weight setting unit), 250 ... storage unit (storage unit), 251 ... monitoring program, 252 ... reference value data, 253 ... weight coefficient data, 253a, 253b, 253c, 253d ... weighting factor (weight), 254 ... past data, 260 ... internal bus, 270 ... CPU, 300, 300 '... power generation device, 400 ... start-up determination unit, 410 ... operating environment monitoring unit 411, 421, 431, 441 ... abnormality determination unit (abnormality determination unit), 412, 422, 432, 442 ... scoring unit (soundness evaluation unit), 413 ... driving interval calculation unit, 420 ... start-up operation monitoring unit, 423 ... Start time calculation unit, 430 ... Stop operation monitoring unit, 433 ... Stop time calculation unit, 440 ... Power generation operation monitoring unit, 450 ... Display control unit, LD ... Load, NE ... Communication line, OD ... Monitoring data, SS ... Startup Signal, SD ... Start command data, RD ... Stop command data.

Claims (10)

Obtaining means for obtaining monitoring data representing at least one of an operating status of the generator and an environment in which the generator is placed, from a generator;
An abnormality determining means for determining whether an abnormality or a sign of abnormality has occurred in the generator based on the monitoring data acquired by the acquiring means;
Based on the monitoring data acquired by the acquisition means, soundness evaluation means for evaluating the soundness of the generator in a plurality of stages,
Informing means for notifying the evaluation result of the soundness evaluation means when it is determined by the abnormality determining means that an abnormality or a sign of abnormality has not occurred in the generator;
A monitoring device comprising: The soundness evaluation means scores the soundness of the generator based on the monitoring data,
The notification means displays the score scored by the soundness evaluation means,
The monitoring apparatus according to claim 1. The soundness evaluation means scores the soundness of the generator for each of a plurality of evaluation viewpoints,
The notification means displays the score scored by the soundness evaluation means for each evaluation viewpoint,
The monitoring device according to claim 2. The plurality of evaluation viewpoints are (a) an operating environment in which the generator is placed, (b) a starting operation of the generator when starting power generation, and (c) the generator when stopping power generation. Two or more types selected from the stop operation of (d) and the power generation operation of the generator during power generation,
The monitoring device according to claim 3. For each of the evaluation viewpoints, a weight representing the importance of the evaluation viewpoint is set in advance, and further includes a weight setting means for changing the weight once set,
The score scored by the soundness evaluation means depends on the weight set by the weight setting means, and the notification means adds the scores scored by the soundness evaluation means for all the evaluation viewpoints. Display the results
The monitoring device according to claim 3 or 4. Storage means for storing the score scored by the soundness evaluation means;
Display control means for acquiring the score scored in the past from the storage means, and displaying the score together with the score scored this time by the soundness evaluation means;
The monitoring device according to any one of claims 2 to 5, further comprising: A control operation of the control unit and the generator from a generator that operates by consuming fuel, a power generation unit that generates electric power when driven by the motor, and a control unit that controls the motor Acquisition means for acquiring monitoring data representing at least one of the physical quantity measured in
Based on the monitoring data acquired by the acquiring means, the elapsed time from the time when the prime mover stopped the fuel consumption last time, the environment where the generator is placed, and the control unit starts the prime mover. The elapsed time from the instructed time until the number of revolutions of the prime mover reaches a predetermined start completion value, the temperature of the exhaust gas at the start of the prime mover, and the time when the control unit instructs the prime mover to stop. Soundness for evaluating the soundness of the generator in a plurality of stages for at least one evaluation viewpoint selected from the elapsed time until the rotational speed of the prime mover decreases to a predetermined stop completion value, and notifying the evaluation result Notification means;
A monitoring device comprising: The monitoring device according to any one of claims 1 to 7,
The generator for outputting the monitoring data to the monitoring device;
A power generator comprising: An acquisition step of acquiring monitoring data representing at least one of the operating status of the generator and the environment in which the generator is placed, from a generator;
Based on the monitoring data acquired in the acquisition step, (a) an operating environment in which the generator is placed, (b) a starting operation of the generator when starting power generation, (c) power generation For each of two or more evaluation viewpoints selected from the stopping operation of the generator when stopping, and (d) the generating operation of the generator during power generation, scoring the soundness of the generator, and scoring A health reporting step for reporting the score obtained for each evaluation viewpoint;
Including monitoring methods. On the computer,
An acquisition function for acquiring monitoring data representing at least one of the operating status of the generator and the environment in which the generator is placed, from a generator;
Based on the monitoring data acquired by the acquisition function, an abnormality determination function for determining whether an abnormality or a sign of abnormality has occurred in the generator;
Based on the monitoring data acquired by the acquisition function, a soundness evaluation function for evaluating the soundness of the generator in a plurality of stages;
When it is determined by the abnormality determination function that no abnormality or a sign of abnormality has occurred in the generator, a notification function for notifying an evaluation result of the soundness evaluation function;
Monitoring program that realizes.