等效二次规划算法在电力系统经济调度中的应用

ECONOMIC DISPATCH OF POWER SYSTEMS USING AN EQUIVALENT QUADRATIC PROGRAMMING ALGORITHM

本文采用了等效二次规划算法处理电力系统经济调度问题。本文基于以全网发电成本为目标函数,以发电机有功出力限制和支路有功限值为约束的电力系统经济调度数学模型,提出了利用二次规划的凸性条件,将具有函数约束的电力系统经济调度二次规划模型转化为只有变量约束的等效二次规划模型。用本文算法对IEEE系统和三个实际系统进行了数值试验。实验结果使得全网发电成本减少和约束条件满足。等效二次规划模型对电力系统经济调度问题具有收敛性好、快及较高精度,具有在线应用能力和能作为调度培训系统仿真软件的潜力。

This paper will apply a novel efficient, practical epnivalent quadratic programming algorithm for dealing with the economlc dispatch of power system. The algorithms based on the general quadratic programming have been studied since earlier days. However, by virtue of convex condition in quadratic objective function of economic dispatch, a novel quadratic programming algorithm, which is based on the fact that the economic dispatch model with function constraints can be transformed into a novel quadratic programming algorithm with only variable constraints, has been developed.On the IEEE power systems and three actual power systems (in P. R. C), numerical tests have been carried out, respectively. The test results show the cost savings and the constraint satisfying. The novel quadratic programming algorithm for economic dispatch problem has good convergency, fast speed and higher precision. The novel quadratic programming algorithm, as a consequence, is useful for on-line appliaations and ean he used as a simulator software for training system operators.