Unit Maintenance Scheduling Model Based on System Reliability

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Unit Maintenance Scheduling Model Based on System Reliability

更新时间：2025-07-09

- Unit Maintenance Scheduling Model Based on System Reliability
- Vol. 43, Issue 8, Pages: 80-84+106(2009)
- 作者机构：
  
  西安交通大学电气工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM73
- Online First：10 August 2009，
  
  Published：2009
- 稿件说明：
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Unit Maintenance Scheduling Model Based on System Reliability[J]. 2009, 43(8): 80-84+106.
DOI：

Unit Maintenance Scheduling Model Based on System Reliability[J]. 2009, 43(8): 80-84+106. DOI：

摘要

为确定市场环境下发电容量充裕度较低系统的机组检修计划

在分析其对系统运行成本影响的基础上

提出了基于系统可靠性评估的规划模型.该模型以规划期内系统总运行成本最小为目标

考虑各时段系统失负荷概率约束、运行约束及检修约束后

确定各机组检修时段

其中系统可靠性指标由蒙特卡洛模拟法评估.与其他模型相比

该模型考虑了双边合同及日前市场、机组及线路故障对检修计划的影响

并将系统可靠性水平转化为经济指标加以衡量.算例分析表明

该模型优先规划对系统可靠性影响大的机组

可确保系统各时段失负荷概率在指定范围内及整个检修计划的经济性.

Abstract

According to the impacts of unit maintenance on the system operation costs

a novel unit maintenance scheduling(UMS)model is proposed in a competitive environment. Based on the system reliability assessment

the minimized total system costs over the entire horizon is taken as the objective

and the constraints of the system loss of load probability(LOLP)

power flow and maintenance outage are considered completely. Compared with the existing models

the proposed scheme takes the influence of bilateral contracts and energy market as well as random failures of generating units and transmission lines into consideration. Additionally

the system reliability index is converted into the economic index as a part of the objective

and evaluated by Monte Carlo approach. The simulation results illustrate that the present model ensures the system LOLP to be kept under the pre-set tolerance value with a steady outage planning cost.

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references

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