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Time setting system for ETS system of steam turbine and method for recording action time thereof

A steam turbine, time technology, applied in the direction of machines/engines, changing time indications, radio-controlled timers, etc., can solve problems such as chain actions

Active Publication Date: 2010-07-28
GUODIAN NANJING AUTOMATION
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] But at present, in the application of large and medium-sized thermal power units, the boiler system, steam turbine system, generator system, etc. are often used as related systems for large-scale chain control, and any abnormal protection of any part of any subsystem in the large-scale system will cause Chain actions of important related parameters of related systems

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  • Time setting system for ETS system of steam turbine and method for recording action time thereof
  • Time setting system for ETS system of steam turbine and method for recording action time thereof
  • Time setting system for ETS system of steam turbine and method for recording action time thereof

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] figure 1 It is the structural diagram of the timing system of the ETS system of the present invention; the timing system includes a set of GPS timing system, a master station and an intermediate controller, and a set of ETS system is an example, and the communication interface of the GPS timing system and the master station is RS 232 interface, the communication interface between the intermediate controller and the ETS system is CAN interface, CAN2.0 protocol.

[0020] The master station is a large IBM_PC compatible computer. The master station computer should have an independent Ethernet port and a set of GPS system with RS232 interface. The operating system of the master station computer adopts DOS6.0 and can also use WINDOWS, LINUX, WINCE operating system , and then connect the GPS system to the serial port (RS232 interface) of the computer.

[0021] The ac...

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Abstract

The invention discloses a time setting system for an ETS system of a steam turbine. The system comprises a GPS time setting system and is characterized in that: the GPS time setting system is connected with a master station computer through an RS232 interface; the master station computer is connected with a middle controller through Ethernet; and the middle controller is connected with the ETS system through a CANBUS communication bus. In the time setting system for the ETS system of the steam turbine and the method for recording the action time, a conventionally required emergency protective action of the steam turbine is realized, and action time scale record of an input signal is increased when a monitored object is abnormal. When a protection signal acts, the accurate time of the action of the protection signal is also recorded, so an important role is played in analyzing the cause of an accident and on the like.

Description

technical field [0001] The invention relates to a method for realizing the action time record of a steam turbine emergency security ETS, belonging to the technical field of electric power system automatic control. Background technique [0002] ETS (EMERGENCY TRIP SYSTEM) is the abbreviation of steam turbine emergency trip system. The steam turbine emergency trip system is specifically applied in the heat-engine plant comprehensive automation system (Heat-Engine PlantComprehensive Automation) to monitor the operating parameters of the steam turbine (turbine speed, lubricating oil pressure, condenser vacuum, DEH fault, bearing vibration, axial displacement , thermal expansion, differential expansion, bearing oil return temperature, high water level, exhaust chamber pressure, etc.), when the parameter exceeds its limit value, the system will automatically close all the steam inlet valves of the steam turbine and shut down in an emergency to ensure the safe operation of the stea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04G5/00F01D21/00G04R40/06
Inventor 马伟东王勇吴胜华
Owner GUODIAN NANJING AUTOMATION