Dynamicand static characteristic collaborative analysis on-line monitoring method for mega-kilowatt ultra-supercritical unit

An ultra-supercritical unit, dynamic and static technology, applied in the direction of instrumentation, adaptive control, control/regulation system, etc., can solve the problems of ignoring the adjustment effect of the closed-loop system and not being able to obtain the monitoring effect

Active Publication Date: 2019-01-11
ZHEJIANG UNIV
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, existing data analysis methods, such as principal component analysis, partial least squares method, and Fisher's discriminant analysis, only consider the static information of the process and ignore the regulatory role of the closed-loop system in the process.
Therefore, applying it to a mega-kilowatt ultra-supercritical unit cannot obtain a good monitoring effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dynamicand static characteristic collaborative analysis on-line monitoring method for mega-kilowatt ultra-supercritical unit
  • Dynamicand static characteristic collaborative analysis on-line monitoring method for mega-kilowatt ultra-supercritical unit
  • Dynamicand static characteristic collaborative analysis on-line monitoring method for mega-kilowatt ultra-supercritical unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0099] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific examples.

[0100] The present invention takes unit No. 7 of Jiahua Power Plant, a subsidiary of Zheneng Group, as an example. The unit has a power of 10,000MW and is an ultra-supercritical unit of one million kilowatts. It includes 46 process variables, and these variables involve pressure, temperature, flow rate, flow rate, etc. . This example selects 35 normal process operating data and 2 faulty process operating data during the operation of thermal power units.

[0101] Such as figure 1 As shown, the present invention is an on-line monitoring method for collaborative analysis of dynamic and static characteristics of a million-kilowatt ultra-supercritical unit, comprising the following steps:

[0102] (1) Obtaining the data to be analyzed: Assuming that a thermal system production process has J measured variables and operating variables, a 1×J ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a dynamicand static characteristic collaborative analysis on-line monitoring method for a mega-kilowatt ultra-supercritical unit to solve the problems of the mega-kilowatt ultra-supercritical unit that process variables are numerous and controller regulation is complex. Typical variables are used for analyzing and extracting time series related information of process data.The slow feature analysis algorithm is combined. Time series related information and dynamic and static information of controller regulation relative to the running state are extracted. The dynamicandstatic online monitoring index is established to conduct process monitoring to the mega-kilowatt ultra-supercritical unit. The method can fully reflect the regulation of a closed-loop system, and cangreatly improve subsequent process online monitoring performance. Understanding of complex processes characteristics can be facilitated. Reliability and credibility of mega-kilowatt ultra-supercritical unit online process monitoring are improved. A thermal power plant is assisted to make an accurate judgment on the operating state of the unit and find faults timely. Safe and reliable operation ofthe mega-kilowatt ultra-supercritical unit is guaranteed.

Description

technical field [0001] The invention belongs to the field of thermal power process process monitoring, and in particular relates to an online process monitoring of dynamic and static coordination of a million-kilowatt ultra-supercritical unit by considering the adjustment effect of a closed-loop system, comprehensively analyzing the time-series correlation relationship of process variables and the dynamic and static characteristics of the process. method. Background technique [0002] In the rapidly developing 21st century, with the improvement of industrial automation and the trend of economic globalization, the thermal power industry is developing in the direction of large-scale and complex. At the same time, in order to achieve the sustainable development of electric power, the thermal power industry is actively carrying out structural adjustments, replacing high-energy consumption small thermal power units with large-capacity, high-parameter, low-energy supercritical and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
Inventor 赵春晖田畅范海东陈积明孙优贤李清毅沙万里
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap