江西电网极限传输容量在线评估的网格技术实现  

Implementation of Grid Computation for On-Line Evaluation of Total Transfer Capability of Jiangxi Power System

作　　者：姚诸香 郑富永 田校军 石立宝[2] 

机构地区：[1]江西电力调度通信中心,江西省南昌市330029 [2]电力系统及发电设备控制和仿真国家重点实验室深圳研究室(清华大学深圳研究生院),广东省深圳市518055

出　　处：《电网技术》2011年第4期87-91,共5页Power System Technology

摘　　要：介绍了江西电网极限传输容量在线评估系统的网格计算实现方法。该系统基于局域网/广域网,通过异构任务调度策略,最大限度地挖掘了每个计算节点的计算能力;通过超时资源抢占的计算策略,提高并优化了系统的整体性能;通过子任务级的容错机制,有效甄别、处理了系统中的不稳定计算节点,确保了系统正常运转;通过采用商用的动态安全评估开发包,保证了计算结果的正确性。该系统具有很好的自适应动态扩展性,计算节点的增删无需人工干预。The implementation of grid computation for on-line evaluation of total transfer capability of Jiangxi power system is presented. Based on the computation environment of local area network （LAN）/wide area network （WAN） and by means of heterogeneous task scheduling strategy, the computation capability of each computing node is brought into play up to the hilt, and through the time out preemption computation strategy the overall performance of the evaluation system can be optimized and improved. Through the fault-tolerance mechanism in subtask level, the instable computing nodes in the system are effectively discriminated and dealt with to ensure the normal operation of the evaluation system. By means of adopting commercial dynamic security assessment software package, the correctness of calculation results is ensured. This on-line evaluation system possesses good adaptive dynamic extensibility and the addition and deletion of computing nodes need not manual intervention.

关 键 词：极限传输容量 网格计算 暂态稳定 在线评估 

分 类 号：TM71[电气工程—电力系统及自动化]