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Method and system for determining full-clean power supply operation boundary of regional power grid

A technology for regional power grids and determination methods, applied in the direction of electrical components, circuit devices, AC network circuits, etc.

Active Publication Date: 2021-05-14
NARI TECH CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of determining the boundaries of clean power supply in regional power grids, a method and system for determining the boundaries of clean power supply operations in regional power grids

Method used

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  • Method and system for determining full-clean power supply operation boundary of regional power grid
  • Method and system for determining full-clean power supply operation boundary of regional power grid
  • Method and system for determining full-clean power supply operation boundary of regional power grid

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Embodiment 1

[0028] Embodiment 1: A method for determining the operation boundary of clean power supply in a regional power grid, including the following steps: starting from the initial year, calculating the first-order sensitivity of the risk assessment value of the regional power grid affected by the thermal power start-up in each year, based on the first-order sensitivity of the impact risk of the thermal power start-up , to calculate the second-order sensitivity of the risk assessment value of thermal power start-up impact with the year; if the second-order sensitivity value is less than the threshold, the year is the boundary year for the implementation of clean power supply, and thermal power can be shut down from the boundary year to the end year.

[0029] In this embodiment, the grid risk assessment value is determined using existing technologies. The usual method in this field includes obtaining the annual typical mode of the power grid, generating the corresponding clean power su...

Embodiment 2

[0040] This embodiment discloses a method for determining the operation boundary of clean power supply in a regional power grid, which is used to solve the optimization problem of energy transformation, such as the optimization of the clean energy transformation strategy of a country / region, one of which can obtain the thermal power shutdown boundary from the time dimension Second, the operating boundary of the power grid in the case of thermal power shutdown in the current year can be obtained from the operation dimension. Its main steps are as figure 1 shown.

[0041] Step 1: Obtain the annual typical mode of the power grid and generate the corresponding clean power supply mode;

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Abstract

The invention discloses a regional power grid full-clean power supply operation boundary determination method and system. The method comprises the steps: calculating the first-order sensitivity of a regional power grid risk assessment value affected by thermal power starting in each year from the beginning year, and calculating the first-order sensitivity of a risk affected by thermal power starting based on the first-order sensitivity of the risk affected by thermal power starting; calculating the second-order sensitivity of the thermal power starting influence risk assessment value along with the change of years; if the second-order sensitivity value is smaller than the threshold value, the year is the boundary year of full-clean power supply implementation, and thermal power can be shut down from the boundary year to the end point year. According to the method, the influence after the thermal power generating unit exits is represented by the change of safety and adequacy risks, the effect of the thermal power generating unit in the power grid can be quantified more reasonably, and the shutdown time of the thermal power generating unit is specifically set to year.

Description

technical field [0001] The invention belongs to the technical field of power grid planning, and relates to a method and a system for determining the operation boundary of clean power supply of a regional power grid. Background technique [0002] Energy and electricity are related to the national economy and people's livelihood, and are an important foundation for economic and social development. Energy depletion, climate change, environmental security and other issues have made clean energy substitution a global consensus. The power system is the core link of the energy chain. my country is building a clean, low-carbon, safe and efficient new energy system with the power system as the core support. Facing pressures such as resource depletion, environmental pollution, and climate change, the clean transformation of all energy sources on a global scale has become an irreversible trend. [0003] With the development of near-zero output operation control technology of conventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q10/06G06Q50/06H02J3/00G06F113/04G06F119/12
CPCG06F30/20G06Q10/0635G06Q50/06H02J3/00G06F2119/12G06F2113/04H02J2203/20
Inventor 赖业宁张红丽薛峰李威刘福锁宋晓芳李兆伟吴雪莲王玉常海军
Owner NARI TECH CO LTD
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