KR20080049962A - Method for providing predictive maintenance with fault daignostics about generator control system, apparatus and system therefor - Google Patents

Abstract

A method for diagnosing a failure of a generator control system and providing predictive maintenance, an apparatus and a system for the same are provided to detect and store failure codes generated between an exciter and a turbine control system in a generator control system, and output a cause of a failure and a maintenance method corresponding to a failure code, thereby promptly and accurately grasping a cause of a failure and repairing the failure. A system for diagnosing a failure of a generator control system(100) and providing predictive maintenance includes an exciter(110) supplying an excited current to a coil and transmitting a failure code corresponding to a generated failure; a turbine control system(120) operating and stopping a turbine in a generator and the exciter, and transmitting the failure code corresponding to the failure; a generator failure diagnosing server(310), wherein the generator failure diagnosing server periodically confirms whether the failure code is received from the exciter or the turbine control system, confirms the number of the failure code, transmitting the failure codes, and extracting and outputting a cause of the failure and a maintenance method corresponding to the failure code; and a generator database(320) receiving the failure codes and storing causes of the failures and the maintenance methods corresponding to the failure codes.

Description

Method for Providing Predictive Maintenance with Fault Daignostics About Generator Control System, Apparatus and System Therefor}

1 is a block diagram schematically showing a conventional generator control system,

2 is a block diagram schematically illustrating a connection state between an exciter and a turbine control system in a conventional generator control system;

3 is a block diagram schematically showing a system for providing fault diagnosis and predictive maintenance for a generator control system according to a preferred embodiment of the present invention;

Figure 4 is a block diagram schematically showing a generator failure diagnosis server according to a preferred embodiment of the present invention,

5 is a block diagram schematically illustrating a connection state between an exciter and a turbine control system according to an exemplary embodiment of the present invention;

6 is an exemplary diagram of an algorithm of a generator failure diagnosis server according to a preferred embodiment of the present invention;

7 is a flow chart illustrating a method for providing fault diagnosis and predictive maintenance for a generator control system according to a preferred embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: generator control system 110: exciter

120: turbine control system 130: operator terminal

310: generator failure diagnosis server 320: generator database

330: fault diagnosis terminal

The present invention relates to a method for providing fault diagnosis and predictive maintenance for a generator control system, and apparatus and system therefor. More specifically, when a large number of fail codes are generated between the excitation of the generator control system and the turbine control system, the generator fault diagnosis server detects them and stores each fail code in the database. Method and apparatus for providing fault diagnosis and predictive maintenance for the generator control system which extracts and outputs the method, checks whether the generator has a failure prediction part, and outputs the failure prediction part if the check result is found. It is about providing a system.

1 is a block diagram schematically showing a conventional generator control system. Conventional generator control system 100 is a device for converting mechanical energy into electrical energy in general, and includes an exciter 110, a turbine control system 120 and an operator terminal 130.

Exciter 110 of a conventional generator control system generally includes a main control panel (not shown), an auxiliary control panel (not shown), a protection panel (not shown), a load following panel (not shown), and the like. It supplies the excitation current to the coil to drive the generator. At this time, the various panels perform a function of controlling or protecting the exciter.

Conventional turbine control system 120 generally includes a turbine controller (not shown), a feed pump controller (not shown), an exciter controller (not shown), and the like, and includes the operation of the turbine and the exciter 110 in a generator, It is a control system that performs stop and monitoring functions.

The conventional operator terminal 130 is interlocked with the exciter 110 and the turbine control system 120, and when receiving the fail code from the exciter 110 or the turbine control system 120, performs a function to output this do. Since the conventional operator terminal 130 does not have a storage capacity for storing a large amount of fail codes, when a plurality of fail codes are instantaneously generated in the exciter 110, a conventional communication protocol (Status-S) algorithm is used. Outputs only one fail code that occurs unspecified.

2 is a block diagram schematically illustrating a connection state between an exciter and a turbine control system in a conventional generator control system.

In a conventional generator control system, data is transmitted and received by connecting a transmitter (Rx), a receiver (Tx) and a communication port (Comm) between the exciter 110 and the turbine control system 120.

However, in the conventional generator control system, when a plurality of fail codes are generated in the exciter 110 or the turbine control system 120, one fail occurs unspecifically due to the storage capacity and the communication protocol of the operator terminal 130. There was a downside to recognizing only code. That is, when a plurality of fail occurs simultaneously in hardware or software in the exciter 110 or the turbine control system 120, the conventional operator terminal 130 can recognize only one fail that occurs unspecified However, from a generator operator's point of view, it is not possible to accurately determine whether any failure has occurred, and this causes a disadvantage in that it is difficult to identify a cause of failure.

As a method for overcoming such a disadvantage in the related art, there has been an N + 1 driving scheme. The N + 1 operation method is a method of stopping the operation of the generator only when a failure occurs in two or more panels among the panels included in the exciter 110. When a failure occurs in one or less panels, This is a quick way to reset the alarm without generating an alarm. However, this N + 1 operation method has a disadvantage in that the data for the fail code is not stored and the cause of the failure cannot be identified. That is, since the cause of the failure is not accurately understood, the failure of the same symptom occurs again.

In order to solve the above problems, the present invention, when a plurality of fail codes occur between the excitation of the generator control system and the turbine control system, the generator failure diagnosis server detects them and stores each fail code in the database, fail code It extracts and outputs the cause and maintenance method corresponding to the fault, and checks whether there is a fault prediction part in the generator, and provides fault diagnosis and predictive maintenance for the generator control system that outputs the fault prediction part if it is found. To provide a method and a device and a system therefor.

In order to achieve the above object, the present invention provides a system for providing fault diagnosis and predictive maintenance for a generator control system, and supplies an excitation current to a coil, and transmits a fail code corresponding to the fail when a fail occurs. Exciter to do; A turbine control system that performs a start and stop function of the turbine and the exciter in the generator, and transmits the fail code corresponding to the fail when the fail occurs; Check whether the fail code is received from the exciter or the turbine control system at regular intervals, and if the fail code is received as a result of the check, confirm whether the fail code is a large number, and as a result of the fail code Is a generator fault diagnosis server that transmits and stores a plurality of fail codes, respectively, and there is a failure cause and a maintenance method corresponding to the fail code, and extracts and outputs the failure cause and the maintenance method; And a generator database configured to receive and store a plurality of the fail codes, and to store the cause of the failure and the maintenance method corresponding to the fail codes. Provide a system.

According to another object of the present invention, there is provided a server for providing fault diagnosis and predictive maintenance for a generator control system, comprising: a display unit for outputting message information generated while driving the server; A communication unit for receiving a fail code in association with an exciter or a turbine control system; A memory unit for temporarily storing various data generated while the server is running and storing a failure information support program for checking whether there is a failure cause and a maintenance method corresponding to the fail code; And when the fail code is received from the communication unit, confirms whether the fail codes are plural, and if the fail codes are plural, as a result, the fail codes are stored in the generator database using the communication unit, and the fault information of the memory unit. Run a support program to check whether there is a failure cause and a maintenance method corresponding to the fail code from the generator database, and if the failure cause and a maintenance method exist as a result of the checking, the cause of the failure and the maintenance method are extracted. It provides a server for providing fault diagnosis and predictive maintenance for the generator control system comprising a control unit for controlling the output to the display unit.

According to another object of the present invention, there is provided a method in which a generator failure diagnosis server provides failure diagnosis and predictive maintenance in association with an exciter and a turbine control system, the method comprising: (a) failing code from the exciter or the turbine control system; Checking whether or not the received message has been received; (b) confirming whether there are a plurality of fail codes when the fail code is received as a result of the checking in step (a); (c) if there are multiple fail codes as a result of the checking in step (b), storing each of the fail codes in a generator database; (d) checking whether there is a failure cause and a maintenance method corresponding to the fail code from the generator database; And (e) extracting and providing the cause of the failure and the method of maintenance, if there is the cause of the failure and the maintenance method as a result of the checking in step (d). Provides a method for providing diagnostic and predictive maintenance.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

3 is a block diagram schematically illustrating a system for providing a diagnosis and predictive maintenance for a generator control system according to a preferred embodiment of the present invention.

The generator control system 100, which provides a failure diagnosis and predictive maintenance for another generator control system in accordance with a preferred embodiment of the present invention, is a device for converting mechanical energy into electrical energy, the exciter 110 and the turbine control system 120. ), The operator terminal 130, generator failure diagnosis server 310, generator database 320 and failure diagnosis terminal 330.

The exciter 110 includes various panels such as a main control panel (not shown), an auxiliary control panel (not shown), a protection panel (not shown), a load following panel (not shown), and drives a generator. To supply the exciting current to the coil. In addition, the exciter 110 performs a function of transmitting a fail code corresponding to the fail to the generator failure diagnosis server 310 when a fail occurs.

The turbine control system 120 includes a turbine controller (not shown), a water pump controller (not shown), an exciter controller (not shown), and the like, and functions to start, stop, and monitor the turbine and the exciter 110 in the generator. It is a system to control to perform. In addition, the turbine control system 120 transmits a fail code corresponding to the fail to the generator failure diagnosis server 310 when a fail occurs.

The operator terminal 130 according to the preferred embodiment of the present invention is interlocked with the exciter 110, the turbine control system 120, the generator failure diagnosis server 310, connected to the generator failure diagnosis server 310 to exciter A function of receiving various fail codes generated from the 110 or the turbine control system 120 is performed.

Generator failure diagnosis server 310 according to a preferred embodiment of the present invention checks whether a fail code is generated between the exciter 110 and the turbine control system 120 at regular intervals, and as a result, the fail code is generated In this case, the generator failure diagnosis server 310 checks whether a plurality of generated fail codes are present.

As a result of the check, when a plurality of fail codes are generated, the generator fault diagnosis server 310 stores each fail code in the generator database 320, and the failure cause and maintenance method corresponding to the fail code are stored in the generator database 320. Check whether there is.

As a result of the check, when there is a failure cause and a maintenance method corresponding to the fail code, the generator failure diagnosis server 310 extracts and outputs the failure cause and the maintenance method corresponding to the fail code.

In addition, the generator failure diagnosis server 310 checks whether there is a part that is predicted to have a failure at a predetermined cycle, and when the result of the check indicates that the failure is predicted, the generator failure diagnosis server 310 extracts the failure prediction part. To output the function. The above is a schematic description of the generator failure diagnosis server 310, and the generator failure diagnosis server 310 will be described in detail with reference to FIGS. 4 and 7.

Generator database 320 according to a preferred embodiment of the present invention performs the function of receiving and storing the fail code from the generator failure diagnosis server 310, and performs the function of storing the failure cause and maintenance method corresponding to the fail code. do. In the present invention, the generator database 320 is implemented separately, but this is merely illustrative of the technical idea, and those skilled in the art to which the present invention pertains without departing from the essential characteristics of the present invention. In the scope of the generator database 320 is included in the generator failure diagnosis server 310 may be modified and modified.

The fault diagnosis terminal 330 according to a preferred embodiment of the present invention is a terminal that compensates for the disadvantage of recognizing only one fail code that occurs unspecifically due to a storage capacity (small capacity) and a communication protocol of a conventional operator terminal 130. It is a terminal that can improve the storage capacity (large capacity) and recognize multiple fail codes. The failure diagnosis terminal 330 is connected to the generator failure diagnosis server 310 and the generator database 320 according to a user's key operation to receive various fail codes, failure causes and maintenance methods corresponding to the fail codes, and failure prediction parts. It refers to a computer that can be, and may be any one of a desktop computer, a notebook computer, the connection program for connecting to the failure diagnosis server 310 and the generator database 320 and the memory for storing the connection program, the connection program Refers to a computer with a built-in control unit for executing, calculating, and controlling.

In addition, Windows (OS) or Linux (Linux) may be used as the operating system (OS) used in the failure diagnosis terminal 330, which is merely illustrative of the technical idea of the present invention. Those skilled in the art may use an OS other than Windows or Linux without departing from the essential characteristics of the present invention.

Figure 4 is a block diagram schematically showing a generator failure diagnosis server according to a preferred embodiment of the present invention.

Generator failure diagnosis server according to a preferred embodiment of the present invention includes a display unit 410, the control unit 420, the communication unit 430 and the memory unit 440.

The display unit 410 displays an operation state of the generator failure diagnosis server 310 and is a screen display unit for outputting various fail codes from the exciter 110 or the turbine control system 120. In addition, the display unit 410 displays messages generated while executing various programs stored in the memory unit 210 under the control of the controller 420, and causes a failure corresponding to a fail code according to an embodiment of the present invention. And the maintenance method. Herein, the display unit 410 may use an LCD. For this purpose, the display unit 410 may include an LCD controller, a memory capable of storing image data, and an LCD display device.

The controller 420 according to the preferred embodiment of the present invention is a control means for controlling the overall operation of the generator failure diagnosis server 310, and whether a fail code is received from the exciter 110 or the turbine control system 120. It includes a fail detection module 422 for performing a function.

The control unit 420 according to the preferred embodiment of the present invention checks whether the fail code is generated from the exciter 110 or the turbine control system 120 using the fail detection module 422 at regular intervals.

As a result of the check, when the fail code is generated, the controller 420 checks whether there are a plurality of fail codes. As a result of the check, when there are a plurality of generated fail codes, the respective fail codes are controlled to be stored in the generator database 320.

According to a preferred embodiment of the present invention, the control unit 420 drives the failure information support program 444 of the memory unit 440, and causes a failure corresponding to the fail code in the generator database 320 using the communication unit 430. And check whether there is a maintenance method.

As a result of the check, when there is a failure cause and a maintenance method corresponding to the fail code in the generator database 320, the controller 420 extracts the cause and the maintenance method and performs a function of controlling the output to the display unit 410. .

In addition, the controller 420 drives the predictive maintenance program 446 of the memory unit 440 to determine whether there is a part of the exciter 110 or the turbine control system 120 that is predicted to fail using the communication unit 430. Check whether or not. As a result of the check, when there is a part where the failure is predicted, the controller 420 performs a function of outputting the failure prediction part by using the display unit 410.

The communication unit 430 according to the preferred embodiment of the present invention includes a communication converter 432 and a communication link 434. The communication converter 432 converts a fail code and various data received from the exciter 110 or the turbine control system 120 through the communication unit 430 to be recognized by the generator failure diagnosis server 310. it means. For example, when the exciter 110 or the turbine control system 120 uses an RS232 serial cable, and the communication unit 430 of the generator failure diagnosis server 310 uses an RS422 serial cable, an RS232 serial cable and an RS422 serial cable. The device that connects to transmit data between cables is the communication conversion window (432). That is, when using the communication converter 432 can transmit and receive data between different serial cables.

The communication link 434 is connected to the transmitter Rx and the communication port to prevent the failure of the exciter 110 due to the connection of the receiver Tx between the exciter 110 and the generator failure diagnosis server 310. Comm) refers to a structure connected only. An illustration of this is shown in FIG. 5.

The memory unit 440 is a storage means for storing a plurality of software that performs a function of driving the generator failure diagnosis server 310. To this end, the memory unit 440 is a non-volatile memory, and EEPROM (Electrically Erasable and Programmable Read Only Memory) capable of modifying the contents in byte units or Flash memory capable of modifying the contents in blocks. ) And SDRAM (Synchronous Dynamic Randdom Access Memory).

The memory unit 440 according to an exemplary embodiment of the present invention includes a communication program 442, a failure information support program 444, and a predictive maintenance program 446.

The communication program 442 is a program that performs a function of receiving various fail codes generated from the exciter 110 or the turbine control system 120 using the communication unit 430.

The failure information support program 444 is a program that performs a function for checking whether there is a failure cause and a maintenance method corresponding to a fail code from the generator database 320.

The predictive maintenance program 446 receives and groups data according to various situations from the exciter 110 or the turbine control system 120, sets the highest threshold and the lowest threshold for the data according to various situations, It is a program that predicts that a failure will occur if the following data exceeds or falls below the highest threshold.

5 is a block diagram schematically illustrating a connection state between an exciter and a turbine control system according to an exemplary embodiment of the present invention.

In the generator control system according to the preferred embodiment of the present invention, only the transmitter Rx and the communication port Comm are connected between the exciter 110 and the generator failure diagnosis server 310 to transmit and receive data. This is to connect only the transmitter (Rx) and the communication port (Comm) in order to block the failure of the exciter 110 due to the connection of the receiver (Tx) between the exciter 110 and the generator failure diagnosis server 310 Structure.

6 is an exemplary diagram of an algorithm of a generator failure diagnosis server according to a preferred embodiment of the present invention.

The algorithm of the generator failure diagnosis server according to the preferred embodiment of the present invention includes an overview function 611, an AVR / FVR control function 612, a monitor function 613, a tag list function 614, and an HT & RT function 615. Alarm event function 616 and report function 617.

The overview (OverView) function 611 is a function that integrates the overall state of the generator control system, including the state of the exciter 110 and the state of the turbine control system 120, and outputs a single screen.

The AVR / FVR control function 612 is a function capable of controlling the exciter 110.

The monitor function 613 is a function of dividing the overall state of the generator control system including the state of the exciter 110 and the state of the turbine control system 120 to output a plurality of screens.

The tag list function 614 is a function capable of receiving the state of the exciter 110 and the state of the turbine control system 120 from a field agent's terminal (PDA, laptop, mobile communication terminal, etc.).

The HT & RT function 615 is a history time & real time function. When the operator wants to select the state of the woman 110, the state of the turbine control system 120, and the received fail code, the history so far is This function can output the data in real time.

The alarm & event function 616 generates an alarm corresponding to the fail code when the fail code is received from the exciter 110 or the turbine control system 120.

The report function 617 is a function for outputting the type of the fail code corresponding to the alarm and the generation time of the fail code.

7 is a flow chart illustrating a method for providing fault diagnosis and predictive maintenance for a generator control system according to a preferred embodiment of the present invention.

The generator failure diagnosis server 310 checks whether a fail code has been generated from the exciter 110 or the turbine control system 120 at a predetermined cycle (S710).

As a result of the check in step S710, if a fail code occurs, the generator failure diagnosis server 310 checks whether there are a plurality of fail codes generated (S720).

As a result of checking in step S720, when a plurality of fail codes are generated, the generator failure diagnosis server 310 stores the generated fail codes in the generator database 320, respectively (S730). For example, the generator failure diagnosis server 310 is a failure code (hardware failure) that is first received when a large number of hardware failures, software failures, memory failures, etc., from the exciter 110 or the turbine control system 120 occur simultaneously. ) And store it in the generator database 320, and then check whether other fail codes (software fail and memory fail) are received continuously, and as a result, other fail code (software fail and memory fail) are continuously When received, each closing date code (software fail and memory fail) is received and stored in the generator database 320.

On the other hand, when a plurality of fail codes do not occur as a result of checking in step S720, the generator is broken server 310 stores the generated fail codes in the generator database 320 (S740).

Generator failure diagnosis server 310 checks whether there is a failure cause and maintenance method corresponding to the fail code received from the generator database (320) (S750).

As a result of checking in step S750, when there is a failure cause and a maintenance method corresponding to the fail code, the generator failure diagnosis server 310 extracts and outputs the failure cause and the maintenance method (S760).

Generator failure diagnosis server 310 checks whether there is a part predicted failure in the exciter 110 or turbine control system 120 (S770). That is, the generator failure diagnosis server 310 receives and groups data according to various situations from the exciter 110 or the turbine control system 120, sets the highest threshold and the lowest threshold for the data according to various situations, It is predicted that a failure will occur if the data according to various situations received from the exciter 110 or the turbine control system 120 exceeds the maximum threshold or is below the minimum threshold.

As a result of checking in step S770, when there is a part that is predicted to have a failure, the generator failure diagnosis server 310 outputs a part where a failure is predicted (S780).

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, when a plurality of fail codes are generated between the exciter of the generator control system and the turbine control system, the generator fault diagnosis server detects them and stores each fail code in a database. By extracting and outputting the corresponding failure cause and maintenance method, the generator operator has the effect of quickly and accurately identifying and repairing the cause of the failure.

In addition, by analyzing the fail code stored in the generator database, it is possible to accumulate the overall technical power for the generator system, thereby increasing the reliability of the generator facility and the effect of improving the electrical quality.

Claims (11)

A system for providing fault diagnosis and predictive maintenance for a generator control system, An exciter for supplying an excitation current to the coil and transmitting a fail code corresponding to the fail when a fail occurs; A turbine control system that performs a start and stop function of the turbine and the exciter in the generator, and transmits the fail code corresponding to the fail when the fail occurs; Check whether the fail code is received from the exciter or the turbine control system at regular intervals, and if the fail code is received as a result of the check, confirm whether the fail code is a large number, and as a result of the fail code Is a generator fault diagnosis server that transmits and stores a plurality of fail codes, respectively, and there is a failure cause and a maintenance method corresponding to the fail code, and extracts and outputs the failure cause and the maintenance method; And A generator database that receives and stores a plurality of fail codes and stores the failure cause and the maintenance method corresponding to the fail codes. System for providing fault diagnosis and predictive maintenance for the generator control system comprising a. The method of claim 1, The generator failure diagnosis server checks whether there is a failure prediction part in the exciter or the turbine control system at regular intervals, and if there is the failure prediction part as a result of the checking, outputs and provides the failure prediction part. A system that provides fault diagnosis and predictive maintenance for generator control systems. The method of claim 2, The generator failure diagnosis server receives and groups data according to various situations from the exciter or the turbine control system, sets the highest threshold value and the lowest threshold value for the data according to the various situations, and the data according to the various situations is stored. A system for providing fault diagnosis and predictive maintenance for a generator control system, characterized in that said failure prediction portion is considered to be above or below said highest threshold. The method of claim 1, The system, A fault diagnosis terminal connected to the fault diagnosis server to receive and output the cause of the fault, the maintenance method, and the fault prediction part, and to receive and output a plurality of the fail codes by accessing the generator database. A system for providing fault diagnosis and predictive maintenance for a generator control system further comprising. A server providing fault diagnosis and predictive maintenance for a generator control system, A display unit configured to output message information generated while driving the server; A communication unit for receiving a fail code in association with an exciter or a turbine control system; A memory unit that temporarily stores various data generated while the server is running and stores a failure information support program for checking whether a failure cause and a maintenance method corresponding to the fail code exist; And When the fail code is received from the communication unit, it is determined whether the plurality of fail codes are individual, and if there are a plurality of fail codes as a result of the check, the fail code is stored in the generator database using the communication unit, and the fault information of the memory unit is supported. Run the program to check whether there is a failure cause and a maintenance method corresponding to the fail code from the generator database, and if the failure cause and the maintenance method exist as a result of the checking, the failure cause and the maintenance method are extracted and the Control unit to output to the display unit Server providing fault diagnosis and predictive maintenance for the generator control system comprising a. The method of claim 5, wherein The memory unit receives and groups data according to various situations from the exciter or the turbine control system by using the communication unit, sets the highest threshold value and the lowest threshold value for the data according to the various situations, according to the various situations. Predictive maintenance program that considers the failure prediction portion when data exceeds or falls below the highest threshold Server providing fault diagnosis and predictive maintenance for the generator control system, characterized in that it further comprises. The method of claim 6, The control unit Drive the predictive maintenance program at regular intervals to check whether there is a failure prediction part in the exciter or the inter turbine control system, and if the failure prediction part is found, output the failure prediction part and provide it. A server that provides fault diagnosis and predictive maintenance for a generator control system. The method of claim 5, wherein The communication unit, And a communication link connecting only the exciter and the transmitting end (Rx) and a communication port (Comm). The method of claim 5, wherein The control unit An overview function of receiving the state of the exciter and the state of the turbine control system from the communication unit and integrating it into one screen to output to the display unit; An AVR / FVR control function for controlling the exciter using the communication unit; A monitor function for receiving the state of the exciter and the state of the turbine control system from the communication unit, dividing the state into a plurality of screens, and outputting the divided portions to the display unit; A tag list function for receiving the state of the exciter and the state of the turbine control system from a terminal of a field agent; An H.T & R.T function for outputting the state of the exciter received using the communication unit, the state of the turbine control system, and the fail code in history or in real time; An alarm event function that generates an alarm corresponding to the fail code received from the exciter or the turbine control system using the communication unit; And Function report function to output the type and time of occurrence of the fail code Server for providing fault diagnosis and predictive maintenance for the generator control system, characterized in that it further comprises. In the generator failure diagnosis server in conjunction with the exciter and turbine control system to provide failure diagnosis and predictive maintenance, (a) checking whether a fail code has been received from the exciter or the turbine control system; (b) confirming whether there are a plurality of fail codes when the fail code is received as a result of the checking in step (a); (c) if there are multiple fail codes as a result of the checking in step (b), storing each of the fail codes in a generator database; (d) checking whether there is a failure cause and a maintenance method corresponding to the fail code from the generator database; And (e) extracting and providing the cause of the failure and the method of maintenance if there is the cause of the failure and the method of maintenance as a result of the checking in step (d); Method for providing fault diagnosis and predictive maintenance for the generator control system comprising a. The method of claim 10, In step (e), after (f) checking whether there is a failure prediction part in the exciter or the turbine control system at regular intervals; (g) extracting and outputting the failure prediction part when the failure prediction part is found as a result of the checking in step (f) Method for providing fault diagnosis and predictive maintenance for the generator control system, characterized in that it further comprises.

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