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Turbine DEH double-controller synchronous hot standby redundancy switching device and method

A technology of redundant switching and dual controllers, which is applied in the direction of mechanical equipment, machines/engines, engine components, etc., can solve the problems of untimely switching, poor reliability and data synchronization, and unstable switching work, so as to improve the availability , Solve the effect of data synchronization and switching arbitration

Active Publication Date: 2019-02-05
中国船舶重工集团公司第七0三研究所
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of unstable switching operation, untimely switching, poor reliability and data synchronization in the existing redundant switching mode, thereby providing a steam turbine DEH dual controller synchronous hot standby redundant switching device and method

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  • Turbine DEH double-controller synchronous hot standby redundancy switching device and method
  • Turbine DEH double-controller synchronous hot standby redundancy switching device and method
  • Turbine DEH double-controller synchronous hot standby redundancy switching device and method

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0034] Such as figure 1 As shown, a steam turbine DEH dual-controller synchronous hot standby redundant switchi...

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Abstract

The invention discloses a turbine DEH double-controller synchronous hot standby redundancy switching device and method, relates to the field of industry process control, and aims at solving the problems that according to an existing redundancy switching manner, work switching is not stable, switching is not timely, and reliability and data synchronism are poor. The turbine DEH double-controller synchronous hot standby redundancy switching device comprises one FPGA chip and two controllers. The FPGA chip is used for collecting and sending peripheral hardware signals to the two controllers and is further used for judging the host and standby relation between the two controllers and sending an operation result of a host to the periphery so as to drive a peripheral hardware circuit. One of thetwo controllers serves as a host, the other one of the two controllers serves as a standby, and host data are synchronized to the standby in each logic operation period. The two controllers conduct operation on the input peripheral hardware signals and send the operation result to the FPGA chip. The turbine DEH double-controller synchronous hot standby redundancy switching device and method are suitable for double-controller synchronous hot standby redundancy switching.

Description

technical field [0001] The invention relates to the field of industrial process control. Background technique [0002] With the development of computer technology and its application in the field of automation, a digital electric hydraulic control system (Digital Electric Hydraulic Control System, referred to as DEH) based on digital computers appeared in the 1980s. DEH receives load, speed, pressure and other signals through the DEH controller and the instructions of the operator, and after the logic judgment and calculation of the controller, it sends instructions and outputs them to the electro-hydraulic actuator. By controlling the opening of the high-pressure and medium-pressure regulating valves, the steam intake of the steam turbine is changed, thereby realizing the control of the speed, load and pressure of the steam turbine. Therefore, the high reliability of the DEH controller is the key to ensure the stable operation of the steam turbine. [0003] Controller red...

Claims

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Application Information

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IPC IPC(8): F01D19/00
CPCF01D19/00F05D2260/84
Inventor 盛杰陈硕宋泽曾文静谷洋洋李攸马宇婷马森吴志新刘振波
Owner 中国船舶重工集团公司第七0三研究所
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