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。
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 reelose sequence. The transient stability risk index based on time margin is calculated with the consideration of uncertainty factors such as operation mode,fauh probability,fauh location,fault type,reclose success rate,etc.,according to which,a method integrating risk index with reelose 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.