Injection upper limit optimization method and system during distributed power supply communication fault

A technology for distributed power supply and communication failure, applied in information technology support systems, system integration technology, resources, etc., can solve problems such as deteriorating system status, reducing system economy, and load loss of power support, to improve utilization efficiency, quantify System operation risk, the effect of improving system safety and economic operation ability

Active Publication Date: 2020-02-21
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Based on this guideline, when a serious information system failure occurs, the load will lose the power support of the DG, causing problems such as overload and low voltag...

Method used

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  • Injection upper limit optimization method and system during distributed power supply communication fault
  • Injection upper limit optimization method and system during distributed power supply communication fault
  • Injection upper limit optimization method and system during distributed power supply communication fault

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Embodiment Construction

[0063] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

[0064] see Figure 1-Figure 3 , figure 1 Flow chart of the upper limit optimization method injected into the present invention; figure 2 for figure 1 Step-by-step flow chart of step S1; image 3 for image 3 Step-by-step flow chart of step S1. like Figure 1-Figure 3 As shown, the injection upper limit optimization method when the distributed power supply communication failure of the present invention includes:

[0065] Step S1: According to the failure mode consequence analysis method, establish a correspondence model between communication failure scenarios and link availability status, and obtain a communication failure scenario and link availability status table;

[0066] Step S2: Based on the communication failure scenario and the link availability state table, establish a two-layer multi-objective optimization mo...

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Abstract

The invention discloses an injection upper limit optimization method and system during a distributed power supply communication fault, and the method comprises the steps: S1, building a correspondingmodel of a communication fault scene and a link effectiveness state according to a fault mode consequence analysis method, and obtaining a communication fault scene and link effectiveness state table;S2, based on the communication fault scene and link validity state table, establishing a double-layer multi-objective optimization model of the differential injection upper limit of the distributed power supply; and S3, performing loop iteration on the double-layer multi-objective optimization model by adopting an interval power flow and particle swarm intelligent optimization algorithm to realize optimization of the upper limit of the differential injection of the lost DG.

Description

technical field [0001] The invention belongs to the field of distributed power sources, in particular to a method and system for optimizing the upper limit of injection when a distributed power source communication fails. Background technique [0002] A large number of distributed generation (DG) is connected to the distribution network, and the random fluctuation of output forces the distribution network to carry out active operation management, resulting in the dependence of the operation status of the power grid on communication and control. With the increase of DG penetration rate, the load's dependence on DG and the dependence of power grid operation status on control are constantly increasing. At this time, if a communication failure occurs, one or more DGs will inevitably lose considerable controllability, resulting in a decrease in system control performance, resulting in voltage over-limits, power flow overload, and a significant increase in the risk of power grid o...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06G06N3/00H02J3/38H02J3/46
CPCG06Q10/04G06Q10/0635G06Q50/06G06N3/006H02J3/381H02J3/46Y04S10/50
Inventor 刘文霞杨梦瑶马铁
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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