Rapid frequency response reserve capacity planning method considering risk preference

A reserve capacity, frequency response technology, applied in special data processing applications, reducing/preventing power oscillation, power network operating system integration, etc. problem, to avoid the phenomenon of risk homogenization

Pending Publication Date: 2021-11-09
STATE GRID LIAONING ECONOMIC TECHN INST +2
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current situation of "double low" under the background of "double carbon" in the power system has led to a sharp increase in the demand for frequency response.
[0003] Aiming at the problem that the traditional reserve method is rough and does not match the security situation of the modern power grid, the present invention faces the need for frequency stability of the power grid under the new situation, and studies the problem of fast frequency corresponding reserve planning

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
  • Rapid frequency response reserve capacity planning method considering risk preference
  • Rapid frequency response reserve capacity planning method considering risk preference
  • Rapid frequency response reserve capacity planning method considering risk preference

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation, but it is not intended as a limitation of the present invention.

[0065] A rapid frequency response reserve capacity planning considering risk preference. This method aims at the problem that the traditional reserve means are rough and does not match the security situation of the modern power grid. Facing the demand for frequency stability of the power grid under the new situation, the problem of rapid frequency response reserve capacity planning Carry out research, table 1 is the unit parameter physical meaning that the present invention provides:

[0066] Table 1

[0067]

[0068] Concrete strategy of the present invention comprises the following steps:

[0069] Step 1: Risk preference cost-benefit analysis. The severity of the accidents concerned can reflect the risk preference of decision makers. Accurate quantification of the risk ra...

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 rapid frequency response reserve capacity planning method considering risk preference. According to the method, a reserve planning scheme is set up for events threatening system frequency security by additionally adding rapid frequency response reserve capacity so as to cope with a new situation of power system frequency stability; the transient change process of the system after the accident is focused, the risk attention range is quantified, and the accident deterioration risk based on the whole accident set power vacancy underestimation is avoided; an equipment state is simulated based on a random production simulation method, and second-level dynamic change is captured by taking frequency dynamic simulation analysis as a means on the basis of a traditional cost income analysis method; the attention degrees of different levels of accidents are considered according to risk preference; the feasibility of the scheme is checked from the perspective of checking the cost, and a corresponding confidence index is obtained. and for a fast frequency response standby planning demand, a transient state change process after an accident is considered, risk preference is considered, subjective analysis capability of a decision maker is taken into consideration factors of a planning process, a planning scheme can be adjusted according to a power grid operation condition and a regional safety level requirement, and the method is more flexible.

Description

technical field [0001] The invention belongs to the field of power grid frequency stability control requirements, and relates to the problem of fast frequency response backup planning, in particular to a fast frequency response backup capacity planning method considering risk preference. Background technique [0002] The power system reserve is the additional equipment capacity that can still guarantee the power balance demand under extreme circumstances such as equipment failure. With the power supply showing high penetration of clean energy and the grid structure shifting to long-distance high-pressure transmission, the proportion of conventional units has been reduced and accidents have escalated. In the past, the base of thermal power was large, the proportion was high, and the system inertia was sufficient. The extensive reserve retention method with a fixed coefficient naturally met the frequency adjustment requirements. The emergency reserve is oriented to various ne...

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): H02J3/24H02J3/46H02J3/14G06F30/20G06F113/04G06F119/02
CPCH02J3/24H02J3/466H02J3/144G06F30/20H02J2300/40H02J2203/20G06F2113/04G06F2119/02Y02B70/3225Y04S20/222
Inventor 李卫东李梓锋张明理张娜徐熙林潘霄赵琳程孟增商文颖杨博满林坤
Owner STATE GRID LIAONING ECONOMIC TECHN INST
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