Method and system for controlling triple redundancy

Abstract

The invention provides a method and a system for controlling triple redundancy. The system comprises large equipment and three controllers connected with the large equipment. With the three controllers, data interaction with the large critical equipment is performed, the same collected data is processed by the three controllers, the collected data of the three controllers is voted by the three controllers after triple redundancy communication, and the voted data are fed back to the large critical equipment. When the controller with high fault-tolerant capability is selected, the probability that one controller is in failure is reduced, and the probability that the three controllers are in failure at the same time is lower, thus the three controllers process the data of the large critical equipment at the same time so that the failure probability of the large critical equipment is reduced as much as possible and the increasing requirement of a client on the large critical equipment is met.

Description

technical field [0001] The invention relates to the field of industrial triple redundancy, in particular to a triple redundancy control method and system. Background technique [0002] Some key equipment in the industrial field needs to run for a long time and with high load, especially in some key areas, such as large-scale key equipment such as large-scale power station steam turbine generator sets, large-scale boilers, etc., large-scale key equipment is usually controlled by the controller, these The normal operation of important equipment is directly related to the major interests of the company and customers, so a controller with high fault tolerance is required to control these large industrial key equipment. Fault tolerance means the maximum error that the controller is allowed to accept during normal operation, that is, although there are some errors, the controller can still operate normally and produce the expected results. [0003] However, in the prior art, ther...

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Problems solved by technology

Fault tolerance indicates the maximum error that the controller is allowed to accept during normal operation, that is, although there are some errors, the controller can still operate normally and produce the expected results

[0003] However, in the prior art, there is generally only one controller for controlling large-scale key equipment, that is, a single controller. No matter how high the fault tolerance capability of the single controller is, it will also cause problems beyond single-mode control due to internal component damage or disrepair. The failure of the fault tolerance makes it impossible for a single controller to control large-scale key equipment, which in turn leads to failure of large-scale key equipment. However, the control of large-scale key equipment is not allowed to fail as much as possible. It has been unable to meet the increasing requirements of customers for large-scale key equipment

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