Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Method for Selecting System Spare Capacity Considering Economy and Reliability

A reserve capacity and reliability technology, applied in system integration technology, information technology support system, data processing application, etc., can solve problems affecting economy, slow reliability level, low utilization rate of power generation equipment, etc., to improve comprehensive benefits , fast effect

Active Publication Date: 2018-04-10
POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the reserve ratio exceeds a certain level, the improvement of the reliability level tends to be slow, and too much reserve capacity also leads to low utilization of power generation equipment, which affects the economy of operation and other issues

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
  • A Method for Selecting System Spare Capacity Considering Economy and Reliability
  • A Method for Selecting System Spare Capacity Considering Economy and Reliability
  • A Method for Selecting System Spare Capacity Considering Economy and Reliability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0036] see figure 1 , a system reserve capacity selection method that takes both economy and reliability into account in the present invention, involves the power generation cost of the unit and the forced outage rate, continuously corrects the equivalent load power function through convolution operations, obtains the reliability index, and proposes The index for evaluating the comprehensive benefits of the reserve capacity allocation scheme is finally used to obtain the economically optimal system reserve capacity under a certain level of reliability by using the idea of ​​dichotomy.

[0037] The unit data (all thermal power units, unit number N=7) and daily load curve data of a simple system are shown in Table 1 and Table 2:

[0038] Table 1. Generator Set Data

[0039]

[0040]

[0041] Table 2. Daily load curve data

[0042] time...

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 provides a system reserve capacity selection method ensuring both high economic efficiency and high reliability. The method comprises the following steps: 1) obtaining data and load data of units; 2) obtaining an equivalent load duration curve through calculation, and meanwhile arranging a load carrying order of the units through the quick sorting method; 3) and under the premise of ensuring certain system reliability, quickly selecting a system reserve capacity through the bisection method to achieve the purpose of optimum economic efficiency. Through the method provided by the invention, the system reserve capacity can be quickly selected; the selection process not only ensures both high economic efficiency and high reliability, but also improves the comprehensive benefits of a reserve allocation plan, so that the method can be used for providing referential suggestions for the running method of a power system.

Description

technical field [0001] The invention belongs to the field of safe planning and operation of electric power systems, and in particular relates to a method for selecting system reserve capacity which takes into account both economy and reliability. Background technique [0002] The allocation of reserve capacity in the power system plays a decisive role in the safe operation of the power grid. The operation backup of the power grid can ensure the continuous power supply capacity of the power system to loads and users to the greatest extent when the system is forced to stop running due to equipment accidents. Generally speaking, the higher the ratio of reserve capacity to load in the system, the better the reliability level of the system. However, when the reserve ratio exceeds a certain level, the improvement of the reliability level tends to be slow, and too much reserve capacity also leads to low utilization of power generation equipment, which affects the economy of operat...

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): H02J3/38G06Q50/06
CPCG06Q50/06H02J3/38H02J2203/20Y02E40/70Y04S10/50
Inventor 王延纬寇宇易杨别朝红孙吉波姜江枫谭伟刘凡钱峰段秦刚杨银国吴国炳
Owner POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com