基于等值的电力系统机电暂态仿真并行异步算法  

Asynchronous Parallel Algorithm for Power System Electromechanical Transient Stability Simulation Based on Equivalence

作　　者：林济铿[1] 仝新宇[2] 罗萍萍[3] 林昌年[4] 

机构地区：[1]天津大学电力系统仿真控制教育部重点实验室,天津市300072 [2]天津市城西供电分公司,天津市300190 [3]上海电力学院电力系,上海市200090 [4]中国电力科学研究院,北京市100192

出　　处：《电力系统自动化》2009年第1期32-35,共4页Automation of Electric Power Systems

摘　　要：提出了一种基于等值的机电暂态稳定并行异步仿真新方法。该方法将系统按地理位置分区后的各子系统在每一时步进行相互等值,每个子系统利用其他子系统传递来的等值信息进行独立迭代计算;在每一时步的迭代过程中,各子系统只需1次相邻子系统的预测等值信息和校正等值信息;采用异步并行策略进行子系统间的等值信息传递和迭代,及时更新等值信息,从而加速迭代收敛。多个算例表明,文中的方法具有较快的计算速度和较高的计算效率,并具有工程可接受的仿真精度;对于一些大规模的实际系统,已实现实时或超实时仿真速度。A novel asynchronous parallel simulation method based on equivalence approach is proposed, for, transient, stability simulation of power systems, in this method, .;the network is partitioned into several, interconnected subsystems according to geographical positions, ＇and the subsystems are equivalent each other at each simulation iteration step. Each subsystem utilizes the equivalent information from other subsystems to calculate independently. At each iteration＇step, a subsystem only needs the predictive equivalence and correctional equivalence of the adjacent subsy.stems opce. Additionally, the asynchronous parallel technique is used to transmit and iterate the equivalent information among subsystems to speed up the convergence of iteration. Several cases demonstrate that the proposed method has fast calculation speed and high calculation efficiency, as well as the simulation precision accepted for engineering application. For some large-scale real systems,the real-time., or super-real-time simulation will be realized.

关 键 词：暂态仿真 暂态稳定 系统等值 异步并行 电力系统 

分 类 号：TM743[电气工程—电力系统及自动化] TM712