| 引用本文: | 孙士云,束洪春,于继来.风险指标与灵敏度相结合的重合时序策略协调[J].电力自动化设备,2013,33(10): |
| SUN Shiyun,SHU Hongchun,YU Jilai.Coordination of reclose sequence strategies based on risk index and sensitivity[J].Electric Power Automation Equipment,2013,33(10): |
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| 摘要: |
| 暂态功角和电压稳定视角下得到的重合时序策略冲突时，需进行协调。将改变重合时序而引起的表征系统特征的指标变化量定义为暂态功角或电压稳定问题对重合时序的灵敏度。考虑系统运行方式、故障发生概率、故障位置、故障类型和重合闸成功率等不确定性因素计算基于时间裕度的暂态稳定风险指标。在此基础上，提出了一种综合重合时序灵敏度和暂态稳定风险指标的重合时序策略协调方法。大量仿真表明该方法有助于权衡重合时序整定方案对暂态功角稳定和暂态电压稳定的影响。 |
| 关键词: 重合时序 风险 灵敏度分析 策略协调 暂态稳定 |
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| 基金项目:国家自然科学基金资助项目（51367009，50977039， 50847043，90610024）；云南省自然科学基金资助项目（2005F0005Z）；云南省教育厅基金重点项目（2010Z105） |
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| Coordination of reclose sequence strategies based on risk index and sensitivity |
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SUN Shiyun1, SHU Hongchun1, YU Jilai2
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1.Faculty of Electric Power Engineering，Kunming University of Science and Technology，Kunming 650500，China;2.Department of Electrical Engineering，Harbin Institute of Technology，Harbin 150001，China
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| Abstract: |
| When the reclose sequence strategies obtained in view of transient angle and voltage stability respectively conflict，it is necessary to coordinate between them. The change of representation index，which is caused by the reclose sequence change，is defined as the sensitivity of transient angle or voltage stability issues to reclose sequence. The transient stability risk index based on time margin is calculated with the consideration of uncertainty factors such as operation mode，fault probability，fault location，fault type，reclose success rate，etc.，according to which，a method integrating risk index with reclose sensitivity is proposed for the coordination between reclose sequence strategies. Simulations indicate that，the proposed method balances effectively the influences of reclose sequence strategy on transient angle and voltage stability. |
| Key words: reclose sequence risks sensitivity analysis strategy coordination transient stability |
