Large gas turbine generator set GSCC-ICS intelligent control system

Abstract

The invention provides a GSCC-ICS intelligent control system for a large gas turbine generator set, which is characterized in that real-time data generated by a DCS (Distributed Control System) are sent to a network through an OPC server, the data conform to an OPC communication protocol, and an OPC client in a GSCC-ICS server receives the data in the OPC server; the method comprises the following steps of: sending a control instruction to a GSCC-ICS server, processing the control instruction in the GSCC-ICS server, transmitting the control instruction to an OPC server of a DCS (Distributed Control System) through an OPC protocol, receiving the control instruction of the GSCC-ICS by the OPC server, and sending the control instruction to equipment through a control system of the OPC server so as to control the equipment. According to the control system, on the basis of an existing DCS, multiple control modes of one-key start and stop, fault early warning and processing, automatic regular operation and equipment intelligent control of the large-scale generator set are achieved, and unattended operation of the large-scale generator set is achieved.

Description

Technical Field

[0001] The invention relates to the field of automatic control technology, and in particular to a GSCC-ICS intelligent control system for a large gas turbine generator set. Background Art

[0002] Although DCS is currently used to control the entire unit during the design and construction process of current generator sets, most of them only achieve remote control, and do not realize functions such as one-button start and stop of the entire unit, fault warning and processing, automatic regular operation, and intelligent equipment control. All operations require the operator to make independent judgments and manual control. Different operators have different operating methods, resulting in a wide range of operating processes for large units. Many of these non-standard operations have many adverse effects on equipment life, environmental protection, and energy saving.

[0003] At the same time, since the system only realizes remote operation, the operation volume is extremely large during the start-up and shutdown process of the unit, which is a concentrated operation volume. The operation volume may reach four to five thousand times in four to five hours. It requires a large number of operators and a large operation volume. Cross-operation and misoperation are very likely to occur, leading to accidents. In addition, the existing DCS generally does not have fault warning and processing functions. Manual judgment and processing are required before and when an accident occurs, which is not timely enough, and the existing DCS control system does not have the function of automatic regular work. Summary of the invention

[0004] The purpose of the present invention is to solve the deficiencies of the prior art and propose a GSCC-ICS intelligent control system for a large gas turbine generator set. Based on the existing DCS, the control system realizes multiple control modes such as one-button start and stop of large generator sets, fault warning and processing, automatic scheduling, and intelligent equipment control, so as to realize unmanned operation of large generator sets.

[0005] The present invention discloses a large-scale gas turbine generator set GSCC-ICS intelligent control system. Real-time data generated by a DCS control system is sent to a network through an OPC server as data that complies with the OPC communication protocol. An OPC client in the GSCC-ICS server receives the data in the OPC server, processes the data inside the GSCC-ICS server, and then transmits the control command to the OPC server of the DCS through the OPC protocol. After receiving the control command from the GSCC-ICS, the OPC server reaches the device through its own control system, thereby controlling the device.

[0006] Preferably, the GSCC-ICS receives the data via an OPC client;

[0007] The received data enters the storage hard disk all the way. The stored data can be displayed through the human-machine interface, or analyzed through the intelligent control software package, combined with real-time data analysis of on-site equipment to achieve fault warning function;

[0008] The received data enters the modules marked in the figure for real-time data calculation. The calculated data enters the storage hard disk in one way and returns to the OPC client in another way. The calculated control instructions are returned to the DCS through the OPC client to control the equipment.

[0009] Preferably, the control modes of GSCC-ICS include: one-button start, one-button shutdown, automatic periodic operation, equipment failure and processing, and equipment intelligent control.

[0010] Preferably, the control method of the one-button start mode is:

[0011] Circulating water system start, A circulating water pump start, B circulating water pump start, C circulating water pump start, open water system start, A open water pump start, B open water pump start, closed water system start, A closed water pump start, B closed water pump start, condensate water system start, A condensate water pump start, B condensate water pump start, C condensate water pump start, denitrification system start, #1 dilution fan start, #2 dilution fan start, high pressure water supply system start, A high pressure water supply pump start, B high pressure water supply pump start, medium pressure water supply system start, A medium pressure water supply pump start, B medium pressure water supply pump start, low pressure water supply system start, pressure regulating station cooling water booster system start, A pressure regulating station cooling water booster pump start, B pressure regulating station cooling water booster pump start Start, start-up of pressure regulating station, start-up of shaft seal vacuum system, start-up of A vacuum pump, start-up of B vacuum pump, start-up of A basic heating network heater drain pump, start-up of B basic heating network heater drain pump, start-up of A booster, start-up of B booster, start-up of heating network system, start-up of heating network circulating water system, start-up of A heating network circulating water pump, start-up of B heating network circulating water pump, start-up of C heating network circulating water pump, start-up of peak heating network heating system, start-up of A peak heating network heater drain pump, start-up of B peak heating network heater drain pump, start-up of basic heating network system, start-up of basic heating network 1 system, start-up of basic heating network 2 system, one-button total start-up, preparation before unit start-up, start-up of gas turbine and grid connection, temperature and pressure increase, steam turbine rush, grid connection of steam turbine generator, grid connection and load increase coordination.

[0012] Preferably, the control method of the one-button shutdown mode is:

[0013] Circulating water system shutdown, A circulating water pump shutdown, B circulating water pump shutdown, C circulating water pump shutdown, open water system shutdown, A open water pump shutdown, B open water pump shutdown, closed water system shutdown, A closed water pump shutdown, B closed water pump shutdown, condensate system shutdown, A condensate pump shutdown, B condensate pump shutdown, C condensate pump shutdown, denitrification system shutdown, #1 dilution fan shutdown, #2 dilution fan shutdown, high-pressure drum shutdown for water supply, high-pressure water supply system shutdown, A high-pressure water supply pump shutdown, B high-pressure water supply pump shutdown, medium-pressure water supply drum shutdown for water supply, medium-pressure water supply system shutdown, A medium-pressure water supply pump shutdown, B medium-pressure water supply pump shutdown, low-pressure steam drum shutdown for water supply, low-pressure water supply system shutdown, pressure regulating station Shutdown of cooling water system, shutdown of cooling water booster pump of pressure regulating station A, shutdown of cooling water booster pump of pressure regulating station B, shutdown of shaft seal vacuum system, shutdown of vacuum pump A, shutdown of vacuum pump B, shutdown of circulating water system of heating network, shutdown of circulating water pump of heating network A, shutdown of circulating water pump of heating network B, shutdown of circulating water pump of heating network C, shutdown of peak heating network system, shutdown of drain pump of peak heating network A, shutdown of drain pump of peak heating network B, shutdown of basic heating network system, shutdown of drain pump of basic heating network A, shutdown of drain pump of basic heating network B, shutdown of basic heating network 1 system, shutdown of basic heating network 2 system, shutdown of booster compressor A, shutdown of booster compressor B, one-button total shutdown, preparation before unit shutdown, load reduction of unit, shutdown of steam turbine, shutdown of gas turbine, and post-shutdown processing.

[0014] Preferably, the control method of the automatic periodic working mode is:

[0015] Condensate pump switching, medium-pressure feed water pump switching, high-pressure feed water pump switching, dilution fan switching, circulating water pump switching, open water pump switching, closed water pump switching, vacuum pump switching, shaft fan switching, booster switching, pressure regulating station cooling water pump switching, peak heating network heater drain pump switching, basic heating network heater drain pump switching, heating network circulating pump switching, regular start and stop of low-pressure preheater heating network recirculation pump, regular backwashing of open water automatic water filter, regular backwashing of heating network filter, generator hydrogen leakage test, regular start-up test of diesel generator, turbine valve activity test, regular commissioning of condenser rubber ball system, vacuum tightness test, unit water replenishment rate test, regular start-up test of turbine DC lubricating oil pump, regular blowdown of high, medium and low pressure drums.

[0016] Preferably, the control method of equipment failure and processing mode is:

[0017] Abnormal drum water level, main steam overtemperature, main steam desuperheating water regulating valve failure, reheat desuperheating water regulating valve failure, reheat steam overtemperature, low-pressure water supply regulating valve failure, medium-pressure water supply regulating valve failure, high-pressure water supply regulating valve failure, high-pressure feed water pump failure, abnormal opening of high-pressure feed water pump scoop pipe, medium-pressure feed water pump failure, condensate pump failure, abnormal condensate index, abnormal condenser water level, abnormal feed water index, abnormal boiler water index self-recovery, basic heating network heater tripping, peak heating network heater tripping, low heating network return water pressure, heating network feed water pump water grabbing, heating network circulating pump failure, low gas inlet pressure of gas turbine, high closed cooling water temperature, low closed cooling water tank water level, abnormal increase in closed cooling water pump bearing temperature, abnormal shaft seal pressure, vacuum pump cavitation, abnormal decrease in condenser vacuum, dirty condenser circulating water pipe, circulating water pump failure, excessive nitrogen oxide emissions.

[0018] Preferably, the control method of the device intelligent control mode is:

[0019] Intelligent control of high-pressure feed water pumps, intelligent control of medium-pressure feed water pumps, intelligent control of condensate water pumps, intelligent control of circulating water pumps, automatic periodic intelligent control of denitrification fans, intelligent control of closed cooling water pumps, open cooling water pumps, intelligent control of peak heating network drain pumps, intelligent control of basic heating network drain pumps, intelligent control of pressure regulating station cooling water pumps, intelligent control of vacuum pumps, and intelligent control of heating network circulating water pumps.

[0020] The advantages and technical effects of the present invention are:

[0021] A large gas turbine generator set GSCC-ICS intelligent control system of the present invention

[0022] The present invention exchanges data with DCS through the OPC network communication protocol, and the collected data is calculated by the control software and intelligent control software package installed in the GSCC-ICS server to complete functions such as one-key start and stop, fault warning and processing, automatic scheduling, and intelligent equipment control.

[0023] The present invention is to install a GSCC-ICS control system outside the DCS system and exchange data with the DCS control system through OPC communication. All collected data are calculated by GSCC-ICS and then sent to the DCS control system through OPC communication. The DCS controls the on-site equipment, thereby realizing all-round intelligent control of large-scale generator sets.

[0024] GSCC-ICS is a complete set of computer hardware and software, including a computer, a set of GSCC-ICS control software, intelligent control software package, and communication software. The physical structure is simple, connected to the DCS through only one network cable, and has no requirements for the installation environment.

[0025] The present invention does not change the original DCS control system logic, but fully retains the original operation logic and the original operator's habits. The operator can cut off the GSCC-ICS system without disturbance at any time, and can also put the GSCC-ICS system into the system without disturbance at any time.

[0026] The present invention does not require any hardware addition to the original DCS system and does not change the integrity of the original DCS system. The present invention only serves as the intelligent control brain of the original DCS.

[0027] The present invention does not require adding or changing the process system of the existing large-scale power generation unit.

[0028] The present invention can realize highly intelligent control of large-scale generator sets, which has the following benefits:

[0029] 1. Safety: All operations are automatically judged by the operation permission conditions. Instructions are issued only when the operation is allowed. Instructions are prohibited when the conditions do not allow, fully ensuring the safety of operation.

[0030] 2. Standardized operation: There are tens of thousands of operations for large generator sets. The use of GSCC-ICS can standardize all operations and prevent misoperation, skipped operations, and missed operations.

[0031] 3. Fully intelligent operation: Generally, various conditions need to be judged before operation, and there are multiple operation possibilities. GSCC-ICS can operate through autonomous calculation and judgment, autonomous selection, and autonomous selection of the best option.

[0032] 4. Energy saving: Due to the full automatic operation, all connection operations are seamlessly connected, avoiding the energy waste caused by long intervals and different operating methods during manual operation.

[0033] The present invention has fully considered energy saving in the algorithm, and all controls are based on safety to ensure maximum energy saving control.

[0034] 5. Save manpower: Due to the realization of intelligent control of large-scale generator sets, one-key operation is realized during the start-up and shutdown of the unit. The operator's task is changed from focusing on operation to focusing on monitoring and equipment inspection. He only assists in system operation when there are safety hazards in the system. The operation volume can be reduced to less than 1% of the general operation volume, so it is possible to reduce manpower.

[0035] The GSCC-ICS intelligent control system for a large gas turbine generator set of the present invention effectively reduces the cost of manual training. Moreover, since it realizes full intelligent control and is easy to use, the training time cost can be reduced from three years to one year, and the annual training cost can also be reduced by more than 80%. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the hardware system connection of the present invention;

[0037] Figure 2 It is a schematic diagram of the internal and external data flow of the present invention;

[0038] Figure 3 It is a block diagram of the internal data workflow of the GSCC-ICS server of the present invention. DETAILED DESCRIPTION

[0039] The embodiments of the invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the invention, and cannot be understood as limiting the invention.

[0040] like Figure 1 As shown, it is a physical system of the GSCC-ICS intelligent control system of a large-scale 660MW9H gas turbine generator set. The engineer station, operator station, and OPC server are traditional configurations of the existing DCS system, and GSCC-ICS is a dedicated control server of the present invention.

[0041] like Figure 2 As shown, the real-time data generated by the DCS control system is sent to the network through the OPC server in accordance with the OPC communication protocol. The OPC client in the GSCC-ICS server receives the data in the OPC server, processes it inside the GSCC-ICS server, and then transmits the control instructions to the OPC server of the DCS through the OPC protocol. After receiving the control instructions from the GSCC-ICS, the OPC server reaches the device through its own control system, thereby controlling the device.

[0042] Generally, a gas-fired generator set includes three main equipment: a gas turbine, a steam turbine, and a waste heat boiler. It also includes a circulating water system, an open water system, a closed water system, a condensate system, a high-pressure water supply system, a medium-pressure water supply system, a lubricating oil system, a hydraulic oil system, a high-pressure steam system, a low-pressure steam system, a medium-pressure steam system, a bypass system, etc. There are thousands of valves controlled, so during operation, tens of thousands of data and operational requirements will be generated per second. The operation is complex and the coupling between the systems is strong.

[0043] GSCC-ICS can process 20,000 points of information in one second and can receive data generated by the entire generator set in real time for processing.

[0044] like Figure 3As shown, GSCC-ICS receives data through the OPC client, and the received data goes all the way to the storage hard disk. The stored data can be displayed through the human-machine interface, or analyzed through the intelligent control software package, combined with real-time data analysis of field equipment to achieve fault warning function.

[0045] The received data enters the modules marked in the figure for real-time data calculation. The calculated data enters the storage hard disk one way and returns to the OPC client the other way. The calculated control instructions are returned to the DCS through the OPC client to control the equipment.

[0046] Typical functional modules include:

[0047] One-click start

[0048] Circulating water system start, A circulating water pump start, B circulating water pump start, C circulating water pump start, open water system start, A open water pump start, B open water pump start, closed water system start, A closed water pump start, B closed water pump start, condensate water system start, A condensate water pump start, B condensate water pump start, C condensate water pump start, denitrification system start, #1 dilution fan start, #2 dilution fan start, high pressure water supply system start, A high pressure water supply pump start, B high pressure water supply pump start, medium pressure water supply system start, A medium pressure water supply pump start, B medium pressure water supply pump start, low pressure water supply system start, pressure regulating station cooling water booster system start, A pressure regulating station cooling water booster pump start, B pressure regulating station cooling water booster pump start Start, start-up of pressure regulating station, start-up of shaft seal vacuum system, start-up of A vacuum pump, start-up of B vacuum pump, start-up of A basic heating network heater drain pump, start-up of B basic heating network heater drain pump, start-up of A booster, start-up of B booster, start-up of heating network system, start-up of heating network circulating water system, start-up of A heating network circulating water pump, start-up of B heating network circulating water pump, start-up of C heating network circulating water pump, start-up of peak heating network heating system, start-up of A peak heating network heater drain pump, start-up of B peak heating network heater drain pump, start-up of basic heating network system, start-up of basic heating network 1 system, start-up of basic heating network 2 system, one-button total start-up, preparation before unit start-up, start-up of gas turbine and grid connection, temperature and pressure increase, steam turbine rush, grid connection of steam turbine generator, grid connection and load increase coordination.

[0049] One-click shutdown

[0050] Circulating water system shutdown, A circulating water pump shutdown, B circulating water pump shutdown, C circulating water pump shutdown, open water system shutdown, A open water pump shutdown, B open water pump shutdown, closed water system shutdown, A closed water pump shutdown, B closed water pump shutdown, condensate system shutdown, A condensate pump shutdown, B condensate pump shutdown, C condensate pump shutdown, denitrification system shutdown, #1 dilution fan shutdown, #2 dilution fan shutdown, high-pressure drum shutdown for water supply, high-pressure water supply system shutdown, A high-pressure water supply pump shutdown, B high-pressure water supply pump shutdown, medium-pressure water supply drum shutdown for water supply, medium-pressure water supply system shutdown, A medium-pressure water supply pump shutdown, B medium-pressure water supply pump shutdown, low-pressure steam drum shutdown for water supply, low-pressure water supply system shutdown, pressure regulating station Shutdown of cooling water system, shutdown of cooling water booster pump of pressure regulating station A, shutdown of cooling water booster pump of pressure regulating station B, shutdown of shaft seal vacuum system, shutdown of vacuum pump A, shutdown of vacuum pump B, shutdown of circulating water system of heating network, shutdown of circulating water pump of heating network A, shutdown of circulating water pump of heating network B, shutdown of circulating water pump of heating network C, shutdown of peak heating network system, shutdown of drain pump of peak heating network A, shutdown of drain pump of peak heating network B, shutdown of basic heating network system, shutdown of drain pump of basic heating network A, shutdown of drain pump of basic heating network B, shutdown of basic heating network 1 system, shutdown of basic heating network 2 system, shutdown of booster compressor A, shutdown of booster compressor B, one-button total shutdown, preparation before unit shutdown, load reduction of unit, shutdown of steam turbine, shutdown of gas turbine, and post-shutdown processing.

[0051] Automatic periodic work

[0052] Condensate pump switching, medium-pressure feed water pump switching, high-pressure feed water pump switching, dilution fan switching, circulating water pump switching, open water pump switching, closed water pump switching, vacuum pump switching, shaft fan switching, booster switching, pressure regulating station cooling water pump switching, peak heating network heater drain pump switching, basic heating network heater drain pump switching, heating network circulating pump switching, regular start and stop of low-pressure preheater heating network recirculation pump, regular backwashing of open water automatic water filter, regular backwashing of heating network filter, generator hydrogen leakage test, regular start-up test of diesel generator, turbine valve activity test, regular commissioning of condenser rubber ball system, vacuum tightness test, unit water replenishment rate test, regular start-up test of turbine DC lubricating oil pump, regular blowdown of high, medium and low pressure drums.

[0053] Equipment failure and handling

[0054] Abnormal drum water level, main steam overtemperature, main steam desuperheating water regulating valve failure, reheat desuperheating water regulating valve failure, reheat steam overtemperature, low-pressure water supply regulating valve failure, medium-pressure water supply regulating valve failure, high-pressure water supply regulating valve failure, high-pressure feed water pump failure, abnormal opening of high-pressure feed water pump scoop pipe, medium-pressure feed water pump failure, condensate pump failure, abnormal condensate index, abnormal condenser water level, abnormal feed water index, abnormal boiler water index self-recovery, basic heating network heater tripping, peak heating network heater tripping, low heating network return water pressure, heating network feed water pump water grabbing, heating network circulating pump failure, low gas inlet pressure of gas turbine, high closed cooling water temperature, low closed cooling water tank water level, abnormal increase in closed cooling water pump bearing temperature, abnormal shaft seal pressure, vacuum pump cavitation, abnormal decrease in condenser vacuum, dirty condenser circulating water pipe, circulating water pump failure, excessive nitrogen oxide emissions.

[0055] Intelligent equipment control

[0056] Intelligent control of high-pressure feed water pumps, intelligent control of medium-pressure feed water pumps, intelligent control of condensate water pumps, intelligent control of circulating water pumps, automatic periodic intelligent control of denitrification fans, intelligent control of closed cooling water pumps, open cooling water pumps, intelligent control of peak heating network drain pumps, intelligent control of basic heating network drain pumps, intelligent control of pressure regulating station cooling water pumps, intelligent control of vacuum pumps, and intelligent control of heating network circulating water pumps.

[0057] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive and are not limited to gas turbine generator sets and coal-fired generator sets. Therefore, the present invention is not limited to the embodiments described in the specific implementation modes. Any other implementation modes derived by technical personnel in this field based on the technical solution of the present invention, especially the use of OPC communication method to achieve one-button start and stop, etc., also fall within the scope of protection of the present invention.

[0058] Finally, all the unexplained parts of the invention adopt mature products and mature technical means in the existing technology.

[0059] In the description of this specification, reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in the embodiment or example of the invention.

[0060] Although embodiments of the invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A GSCC-ICS intelligent control system for a large gas turbine generator set, characterized in that: The real-time data generated by the DCS control system is sent to the network through the OPC server in accordance with the OPC communication protocol. The OPC client in the GSCC-ICS server receives the data in the OPC server, processes it inside the GSCC-ICS server, and then transmits the control instructions to the OPC server of the DCS through the OPC protocol. After the OPC server receives the control instructions from the GSCC-ICS, it reaches the equipment through its own control system and controls the equipment. The GSCC-ICS receives data via the OPC client; The received data enters the storage hard disk all the way. The stored data can be displayed through the human-machine interface, or analyzed through the intelligent control software package, combined with real-time data analysis of on-site equipment to achieve fault warning function; The received data enters the modules marked in the figure for real-time data calculation. The calculated data enters the storage hard disk in one way and returns to the OPC client in another way. The calculated control instructions are returned to the DCS through the OPC client to control the equipment.

2. The GSCC-ICS intelligent control system for a large gas turbine generator set according to claim 1 is characterized in that: The control modes of the GSCC-ICS include: one-button start, one-button shutdown, automatic regular operation, equipment failure and processing, and equipment intelligent control.

3. The GSCC-ICS intelligent control system for a large gas turbine generator set according to claim 2 is characterized in that: The control method of the one-button start mode is: Circulating water system start, A circulating water pump start, B circulating water pump start, C circulating water pump start, open water system start, A open water pump start, B open water pump start, closed water system start, A closed water pump start, B closed water pump start, condensate water system start, A condensate water pump start, B condensate water pump start, C condensate water pump start, denitrification system start, #1 dilution fan start, #2 dilution fan start, high pressure water supply system start, A high pressure water supply pump start, B high pressure water supply pump start, medium pressure water supply system start, A medium pressure water supply pump start, B medium pressure water supply pump start, low pressure water supply system start, pressure regulating station cooling water booster system start, A pressure regulating station cooling water booster pump start, B pressure regulating station cooling water booster pump start Start, start-up of pressure regulating station, start-up of shaft seal vacuum system, start-up of A vacuum pump, start-up of B vacuum pump, start-up of A basic heating network heater drain pump, start-up of B basic heating network heater drain pump, start-up of A booster, start-up of B booster, start-up of heating network system, start-up of heating network circulating water system, start-up of A heating network circulating water pump, start-up of B heating network circulating water pump, start-up of C heating network circulating water pump, start-up of peak heating network heating system, start-up of A peak heating network heater drain pump, start-up of B peak heating network heater drain pump, start-up of basic heating network system, start-up of basic heating network 1 system, start-up of basic heating network 2 system, one-button total start-up, preparation before unit start-up, start-up of gas turbine and grid connection, temperature and pressure increase, steam turbine rush, grid connection of steam turbine generator, grid connection and load increase coordination.

4. The GSCC-ICS intelligent control system for a large gas turbine generator set according to claim 2 is characterized by: The control method of the one-button shutdown mode is: Circulating water system shutdown, A circulating water pump shutdown, B circulating water pump shutdown, C circulating water pump shutdown, open water system shutdown, A open water pump shutdown, B open water pump shutdown, closed water system shutdown, A closed water pump shutdown, B closed water pump shutdown, condensate system shutdown, A condensate pump shutdown, B condensate pump shutdown, C condensate pump shutdown, denitrification system shutdown, #1 dilution fan shutdown, #2 dilution fan shutdown, high-pressure drum shutdown for water supply, high-pressure water supply system shutdown, A high-pressure water supply pump shutdown, B high-pressure water supply pump shutdown, medium-pressure water supply drum shutdown for water supply, medium-pressure water supply system shutdown, A medium-pressure water supply pump shutdown, B medium-pressure water supply pump shutdown, low-pressure steam drum shutdown for water supply, low-pressure water supply system shutdown, pressure regulating station Shutdown of cooling water system, shutdown of cooling water booster pump of pressure regulating station A, shutdown of cooling water booster pump of pressure regulating station B, shutdown of shaft seal vacuum system, shutdown of vacuum pump A, shutdown of vacuum pump B, shutdown of circulating water system of heating network, shutdown of circulating water pump of heating network A, shutdown of circulating water pump of heating network B, shutdown of circulating water pump of heating network C, shutdown of peak heating network system, shutdown of drain pump of peak heating network A, shutdown of drain pump of peak heating network B, shutdown of basic heating network system, shutdown of drain pump of basic heating network A, shutdown of drain pump of basic heating network B, shutdown of basic heating network 1 system, shutdown of basic heating network 2 system, shutdown of booster compressor A, shutdown of booster compressor B, one-button total shutdown, preparation before unit shutdown, load reduction of unit, shutdown of steam turbine, shutdown of gas turbine, and post-shutdown processing.

5. The large gas turbine generator set GSCC-ICS intelligent control system according to claim 2 is characterized by: The control method of the automatic periodic working mode is: Condensate pump switching, medium-pressure feed water pump switching, high-pressure feed water pump switching, dilution fan switching, circulating water pump switching, open water pump switching, closed water pump switching, vacuum pump switching, shaft fan switching, booster switching, pressure regulating station cooling water pump switching, peak heating network heater drain pump switching, basic heating network heater drain pump switching, heating network circulating pump switching, regular start and stop of low-pressure preheater heating network recirculation pump, regular backwashing of open water automatic water filter, regular backwashing of heating network filter, generator hydrogen leakage test, regular start-up test of diesel generator, turbine valve activity test, regular commissioning of condenser rubber ball system, vacuum tightness test, unit water replenishment rate test, regular start-up test of turbine DC lubricating oil pump, regular blowdown of high, medium and low pressure drums.

6. The GSCC-ICS intelligent control system for a large gas turbine generator set according to claim 2 is characterized by: The control method of the equipment failure and processing mode is: Abnormal drum water level, main steam overtemperature, main steam desuperheating water regulating valve failure, reheat desuperheating water regulating valve failure, reheat steam overtemperature, low-pressure water supply regulating valve failure, medium-pressure water supply regulating valve failure, high-pressure water supply regulating valve failure, high-pressure feed water pump failure, abnormal opening of high-pressure feed water pump scoop pipe, medium-pressure feed water pump failure, condensate pump failure, abnormal condensate index, abnormal condenser water level, abnormal feed water index, abnormal boiler water index self-recovery, basic heating network heater tripping, peak heating network heater tripping, low heating network return water pressure, heating network feed water pump water grabbing, heating network circulating pump failure, low gas inlet pressure of gas turbine, high closed cooling water temperature, low closed cooling water tank water level, abnormal increase in closed cooling water pump bearing temperature, abnormal shaft seal pressure, vacuum pump cavitation, abnormal decrease in condenser vacuum, dirty condenser circulating water pipe, circulating water pump failure, excessive nitrogen oxide emissions.

7. The GSCC-ICS intelligent control system for a large gas turbine generator set according to claim 2 is characterized by: The control method of the device intelligent control mode is: Intelligent control of high-pressure feed water pumps, intelligent control of medium-pressure feed water pumps, intelligent control of condensate water pumps, intelligent control of circulating water pumps, automatic periodic intelligent control of denitrification fans, intelligent control of closed cooling water pumps, open cooling water pumps, intelligent control of peak heating network drain pumps, intelligent control of basic heating network drain pumps, intelligent control of pressure regulating station cooling water pumps, intelligent control of vacuum pumps, and intelligent control of heating network circulating water pumps.

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