Advanced Quantitative Adjustment Method of AGC for Thermal Power Units

A technology of thermal power units and adjustment methods, which is applied to electrical components, circuit devices, AC network circuits, etc., can solve problems such as unqualified A1 values, achieve the effects of reducing the number of interventions, improving the quality of power grid frequency control, and reducing the number of limit violations

Active Publication Date: 2016-12-28
STATE GRID CORP OF CHINA +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(1) In the case of non-accident, the A1 value of a certain control area is unqualified for three or more consecutive assessment periods

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
  • Advanced Quantitative Adjustment Method of AGC for Thermal Power Units
  • Advanced Quantitative Adjustment Method of AGC for Thermal Power Units
  • Advanced Quantitative Adjustment Method of AGC for Thermal Power Units

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:

[0034] At present, Tianjin Power Grid adopts Tie-line Load Frequency Bias Control (Tie-line Load Frequency Bias Control, TBC) mode, and the A1 / A2 standard under TBC mode is formulated based on operating experience. The standard stipulates that the assessment period is 15 minutes, and A1 is the number of ACE (Area Control Error) zero crossings within 15 minutes. It is required that A1 crosses zero at least once during the assessment period, and A2 is the average value of ACE within the assessment period. |A2|≤50MW within the period.

[0035] see figure 1 , the thermal power unit AGC advance quantitative adjustment method of the present invention comprises the following steps:

[0036] 1) Obtain the operation-related data ACE and A2 of the AGC at the current moment,

[0037] ACE is the tie line deviation value, and its calculation formula ...

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 an advanced quantification adjusting method for a thermal power set AGC. The method comprises steps that: related operation data ACE and A2 of the AGC at the present moment are acquired; deltaACE satisfying an examine requirement is acquired; an output value deltaPG needing set adjustment is calculated; whether an adjusting scope of the set satisfies the requirement is examined; the set is adjusted according to the acquired deltaPG; whether the A2 satisfies the requirement is examined. Through the method, advanced quantification adjustment on the thermal power set AGC can be realized, intervention times are greatly reduced for a dispatcher, ACE off-limit times are reduced, electrical network frequency control quality is improved, and operation stability of the thermal power set is improved.

Description

technical field [0001] The invention belongs to the field of active frequency control, and in particular relates to an AGC advance quantitative adjustment method for a thermal power unit. Background technique [0002] At present, the control strategy of the tie line of Tianjin Power Grid has not yet achieved closed-loop control. In most cases, on the basis of the AGC system control strategy, the dispatcher needs to manually adjust it, especially in the period when the load rises and falls rapidly and multiple impact loads act. At the same time, the inter-provincial connection line of the North China Power Grid has a strict power assessment, which is another severe test for the adjustment of the regional connection line. Article 21 of the "North China Power Grid Inter-provincial Tie Line Electric Power Assessment Management Measures (Provisional)" stipulates: the assessment of long-term continuous deviation from the tie-line plan: any of the following situations is identified...

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 Patents(China)
IPC IPC(8): H02J3/00
CPCH02J3/38
Inventor 陈文福宋莉马刚刘海鹏杨邦宇郝达智宋海涛王麟刘怡王伟臣王健曹旌卢向东李伟刘颂王磊刘玉坤路树森姚维平李跃泉牛跃华史磊
Owner STATE GRID CORP OF CHINA
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