Method for checking correctness of operating parameters of generator set capable of adapting to change of operating conditions

Abstract

The invention discloses a method for checking the correctness of operating parameters of a generator set capable of adapting to the change of operating conditions, which belongs to the technical field of the operation monitoring of generator sets. The method comprises the following steps of: dividing the operating conditions of the generator set, determining the operating conditions through three parameters, namely set load, environmental temperature and heat productivity of coal as fired to make into an operating parameter condition value table, and upgrading the operating condition value table according to the actual operating conditions and operating parameter real-time values in the stable state of the generator set, so that each parameter operating condition value changes with the operating conditions; checking the correctness of the operating parameters by utilizing the operating condition value table, so that the process of checking the correctness of the operating parameters of the generator set has the adaptive capability on the operating conditions; and providing replacement values in high accuracy during parametric fault.

Description

technical field [0001] The invention belongs to the technical field of generator set operation monitoring, in particular to a method for checking the correctness of generator set operating parameters adapted to changes in operating conditions. Background technique [0002] There are many parameters to be monitored for a large generating set, for example, there are as many as 6000-8000 process monitoring parameters for a typical 600MW generating set. Some monitoring parameters come directly from the original detection data of on-site sensors, such as temperature, pressure, etc., and some are the secondary calculation results of the original detection data, such as working fluid enthalpy, various efficiencies, etc. The monitoring parameters can be used to further realize: 1) monitoring of the operating status of the unit, such as whether the unit is running normally, whether there is an alarm, etc.; 2) analysis of the operating performance of the unit, such as calculation and ...

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Problems solved by technology

[0008] Among the above inspection methods, methods (1) and (2) are simple and fast, and are suitable for severe fault detection, but the inspection accuracy is low, and no possible parameter substitution values ​​are given; method (3) has high inspection accuracy and can give possible Parameter substitution values, but require additional hardware and software support, high implementation costs, and cannot be applied to all parameters; method (4) has certain precision and can give possible parameter substitution values, but it is difficult to find reference values ​​for all parameters , and the reference value is constant or has a fixed relationship with the load, and cannot be updated with the actual working conditions, so it can only be implemented for individual parameters

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