暂态稳定约束最优潮流的改进降阶内点算法  

An Improved Reduced-Dimension Interior Point Method for Transient Stability Constrained Optimal Power Flow

作　　者：夏小琴[1] 韦化[1,2] 阳育德[1,2] 

机构地区：[1]广西大学电力系统最优化研究所,南宁530004 [2]广西电力系统最优化与节能技术重点实验室,南宁530004

出　　处：《电工技术学报》2012年第9期87-92,100,共7页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(50867001);广西自然科学基金(2011GXNSFA-018018)资助项目

摘　　要：提出了一种求解暂态稳定约束最优潮流的改进降阶内点算法。该方法利用递推特性,将差分化后的两组递推的隐式转子运动方程通过消去得到一组方程,并考虑到数值积分方法的截断误差,将之化为一系列的不等式约束。这一方法减少了等式约束和变量的个数,降低了修正方程的阶数,提高了计算效率,降低了内存消耗。对22至118节点等三个系统的计算表明了所提方法的鲁棒性、高效性。An improved reduced-dimension interior point method is proposed for transient stability constrained optimal power flow （TSCOPF） in this paper. The two groups of differentiated implicit recursive equations of motion of the rotor are eliminated to be one set of equations through recursive features. Considering the truncation error of specific numerical integration algorithm, the transient differential equations are dispersed to inequality constraints instead of equality constraints. The method can reduce the number of the equality constraints and variables and the dimensions of the correction equation, improve the computational efficiency and reduce the memory usage. Numerical simulations on the three test systems, from 22 tol 18 buses, show that the proposed method is robust and efficient.

关 键 词：最优潮流 暂态稳定 内点法 降阶 

分 类 号：TM732[电气工程—电力系统及自动化]