Real-time health degree evaluation method and system for thermal generator set

Abstract

The invention discloses a real-time health degree evaluation method and system for a thermal generator set. According to the technical scheme, the method comprises: firstly, according to the technological process of thermal power generation, dividing all equipment contained in a thermal power generating unit into three logic levels including a unit level, a system level and an equipment level, and then deermining state variables related to the health degree of all the equipment of the equipment level and reference values of the state variables or mathematical models for calculating the reference values; setting a weight coefficient of each level of health degree component, and then calculating equipment-level and system-level health degrees step by step from bottom to top; and finally, performing weighted calculation to obtain a real-time health degree index of the unit. The real-time health degree index obtained through the method is a comprehensive index reflecting the real-time state of the unit, the real-time operation state of the unit can be accurately mastered through the index, the monitoring efficiency of the thermal power unit is improved, and the working intensity of operators is reduced.

Description

technical field [0001] The invention belongs to the technical field of power generation, in particular to a method and system for evaluating the real-time health degree of a thermal power generating set. Background technique [0002] At present, thermal power (thermal power) is still the main electricity production method in my country. According to data from the National Bureau of Statistics, as of the end of 2019, the installed capacity of thermal power in the country was 1.19 billion kilowatts, accounting for 59.2% of the total installed capacity; When the amount is 5165.43 billion, it accounts for 72.3% of the total power generation. With the gradual transformation of thermal power generation into an efficient, clean and environmentally friendly power generation method, it will still occupy an important position in my country's power industry for a long time to come. [0003] The thermal power unit is a very large system. In addition to the three core main engines of the...

AI Technical Summary

Problems solved by technology

For security reasons, the upper and lower limits of the alarm are usually set conservatively, the alarm is triggered very frequently, and the effective alarm information is scarce, so the operator needs to spend a lot of energy to deal with various meaningless alarms, and the monitoring efficiency is low

The existing monitoring methods only provide monitoring information about the operating parameters of the equipment, and cannot provide comprehensive indicators that reflect the overall operating status of the unit

In addition, although there are many factors that affect the operation of thermal power units, operators can only monitor a few important screens or operating parameters, so it is impossible to detect local micro-deterioration of unimportant systems and equipment in time

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