| 引用本文: | 黄 曌,汪 沨,谭阳红,董旭柱,吴争荣,陈 春.基于健康度和重要度的配电网运行风险评估方法[J].电力自动化设备,2016,36(6): |
| HUANG Zhao,WANG Feng,TAN Yanghong,DONG Xuzhu,WU Zhengrong,CHEN Chun.Operational risk assessment based on health and importance indexes for distribution network[J].Electric Power Automation Equipment,2016,36(6): |
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| 摘要: |
| 针对故障概率与故障后果风险指标应用于配电网运行风险评估的不足，提出了基于健康度和重要度的配电网运行风险评估方法。综合考虑配电网多样化运行的发展现状和配电用户对供电可靠性需求的差异，定义了面向系统运行状态的健康度和面向用户差异的重要度为风险指标，全面分析在各风险源因素作用下，健康度和重要度等级的确立规则及计算方法，建立风险评估模型，并在此理论基础上开发了风险评估软件功能平台，完成对配电系统的实时感知、评估和预警。以佛山市实际配电系统为示范工程，截取断面数据进行分析，实验结果可反映系统运行的实时风险，在警戒状态下自动生成预防控制措施，保证配电网安全运行，提高供电可靠性，验证了所提方法的正确性和可行性。 |
| 关键词: 配电网 风险评估 健康度 重要度 脆弱点 软件平台 |
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| 基金项目:国家自然科学基金资助项目（61102039）；湖南省自然科学基金资助项目（14JJ7029）；南方电网公司重点科技项目（WYKJ00000020） |
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| Operational risk assessment based on health and importance indexes for distribution network |
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HUANG Zhao1, WANG Feng1, TAN Yanghong1, DONG Xuzhu2, WU Zhengrong2, CHEN Chun1
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1.College of Electrical and Information Engineering，Hunan University，Changsha 410082，China;2.Electric Power Research Institute，China Southern Power Grid，Guangzhou 510080，China
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| Abstract: |
| Aiming at the deficiency of the operational risk assessment based on the fault probability and fault consequence indexes，a method based on the health and importance indexes is proposed for the operational risk assessment of distribution network，which comprehensively considers various operating modes of distribution network and different requirements of consumers for power-supply reliability，defines the health index orienting to system working conditions and the importance index orienting to different consumers，sets their quantization rules and calculation methods based on the comprehensive analysis of all risk sources，and establishes the risk assessment model. A risk assessment software platform is developed to realize the functions of real-time perception，evaluation and warning for distribution network，by which，the sectional data of Foshan distribution network are analyzed，the real-time risk of system operation is demonstrated，and the preventive control measures are automatically generated in alert condition to ensure the safe operation of distribution network and enhance the power-supply reliability. The experiment verifies the correctness and feasibility of the proposed method. |
| Key words: distribution network risk assessment health index importance index vulnerable point software platform |
