摘要
本文基于全网发电成本为目标、满足节点有功平衡方程、发电厂(机)有功出力和支路有功限值为约束的有功优化潮流数学模型,提出了利用二次规划的凸性条件,使其转化成只有变量约束的等效二次规划模型。本文用等效二次规划算法对5节点、13节点、IEEE 5节点、IEEE 30节点和广东某电力系统进行了计算。结果表明,用等效二次规划算法求解有功优化潮流具有收敛性好、快速及较高的精度,具有应用于在线的潜力。
A novel algorithm for optimal real power flow is developed in this paper, which is based on the fact that the objective function is the generation cost of whole power system, simultaneously, the constraints are real power limits of generators, branch real power limits and real power balance. By virtue of the convex condition of cost function in quadratic programming(QP)model, the QP model with function constraints is trans formed into an equivalent QP model with only variable constraints. Optimal real power flow via equivalent QP algorithm have been tested corresponding to 5 bus, 13 bus, IEEE-5 bus, IEEE-30 bus and Luoding power system(in Guangdong province, P.R.C.)respectively, on the microcomputer. For optimal real power flow, the testing results indicate that the equivalent QP algorithm has good convergency, fast speed and higer precision. It has great potentialities to apply in the on-line computation.
出处
《电力系统自动化》
EI
CSCD
北大核心
1991年第4期52-57,共6页
Automation of Electric Power Systems
