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Method for identifying candidate prevention and control measure of self-adaptive external-environmental electric power system

An external environment and power system technology, applied in general control systems, control/regulation systems, testing/monitoring control systems, etc., can solve problems such as changes in adjustment capabilities and adjustment costs, infeasibility, and uneconomical results of preventive control decisions. Achieving the effect of increasing adaptability, improving economics and feasibility

Inactive Publication Date: 2011-02-16
STATE GRID JIANGXI ELECTRIC POWER CO +1
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AI Technical Summary

Problems solved by technology

In the external disaster environment, the adjustment ability and adjustment cost of candidate control measures may change. If the original candidate measure space is still used, the result of preventive control decision-making may be uneconomical or even infeasible, thus failing to provide effective control measures for dispatchers. Prevention and Control Aided Decision-Making

Method used

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  • Method for identifying candidate prevention and control measure of self-adaptive external-environmental electric power system
  • Method for identifying candidate prevention and control measure of self-adaptive external-environmental electric power system
  • Method for identifying candidate prevention and control measure of self-adaptive external-environmental electric power system

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Embodiment Construction

[0020] Attached below figure 1 , the method of the present invention is described in detail.

[0021] figure 1 Step 1 described in is to collect the evaluation results of transmission line failure probability, maintenance plan information, unplanned outage equipment information, and candidate control measure sets used under normal circumstances in the control center within the current period.

[0022] figure 1 Step 2 described in is to determine the primary equipment such as lines and transformers that can be put into operation after the maintenance is completed according to the planned maintenance information, and add these devices to the set of candidate control measures.

[0023] figure 1 Step 3 described in is to add the affected equipment to the set of candidate control measures when the failure probability or mass failure probability of the affected equipment is greater than a certain limit.

[0024] figure 1 Step 4 described in , according to the evaluation results...

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Abstract

The invention relates to a method for identifying the candidate prevention and control measure of a self-adaptive external-environmental electric power system, which is applicable to dynamically identifying plant stations and electric power equipment influenced by disasters, judging the prevention and control measure losing or recovering the regulating capability and having the changed regulatingrange or cost and online dynamically adjusting the usable control measure of prevention and control aid decision making and the regulating range and the control cost thereof. The candidate preventionand control measure integrates two tasks of online automatic identification comprising the identification of the plant stations and the equipment influenced by the disasters and adjustment of prevention and control measure spaces, i.e. the plant stations and the equipment (containing load buses) influenced by external environments are online dynamically and quantitatively evaluated according to the information, such as the probability of transmission line faults caused by the disasters and the like, and then the regulating range and the regulating cost of the measure are automatically corrected according to the influenced conditions of the equipment, so that the prevention and control results are adapted to the real-time external environments, and the feasibility and the economical property of the aid decision making are ensured.

Description

technical field [0001] The invention belongs to the technical field of electric power system and automation thereof. Background technique [0002] The online security and stability defense system of my country's (network and provincial) power grid generally has the auxiliary decision-making function of online prevention and control of power grid security. According to the real-time working conditions of the power grid and its safety and stability evaluation results, this function automatically searches for the preventive control measures that can make the system reach a safe state and the least cost in the specified set of candidate preventive control measures (control equipment, adjustment range, and adjustment cost), and sends them to the dispatcher. Personnel provide preventive controls to assist decision-making. [0003] A pre-specified and largely fixed space of candidate control measures is used in current online defense systems. In the external disaster environment,...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02H7/28
CPCG05B23/0289H02J3/00G06Q10/06G06F17/18H02H7/28
Inventor 金学成王昊昊姚诸香徐泰山邹根华李碧君熊建华徐伟文峰彭慧敏
Owner STATE GRID JIANGXI ELECTRIC POWER CO
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