A Practical Corrective Control Strategy to Mitigate Voltage Collapse

摘要：

To restore post-contingency system solvability,a new minimum load shedding approach is proposed.Using the damped Newton-Raphson methed,the system minimum mismatch function is calculated to identify the weakest bus and determine the most effective load shedding strategy.The weakest bus voltage of minimum mismatch solution is set as known parameter and the scaling load coefficient of the shedding load bus as unknown in the power flow equations,then solve the modified mismatch function to estimate the minimum amount of load shedding.The amount can be refined by a traditional PV curve method.The proposed approach is illustrated with the New England 39-bus system and the IEEE30-bus system.The results show that the approach is very simple and efficient and is easy to be implemented.

关键词： Voltage collapse:Undervoltage load shedding:Power flow solvability:minimum mismatch function

作者: Ping MA Bo_Qiang YUAN

作者单位: Deptement of Electrical Engineering Qing Dao University Qing Dao China 266071

会议类型: 国际会议

会议名称: 2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies(第四届电力设施管制、重建及能源技术国际会议 DRPT 2011)

会议地点: 威海

会议语种:英文

页码: 1039-1043

在线出版日期: 2011-07-06（万方平台首次上网日期，不代表论文的发表时间）