电力市场下的有功安全校正

Active power security correction in power market

提出了一种基于遗传算法的电力市场下的有功安全校正方法。在电力市场下进行有功安全校正就是适当调整发电机的有功出力,以最小的市场购电费用增量来消除支路有功过载。给出了在电力市场下进行有功安全校正的数学模型,介绍了遗传算法的基本原理和应用步骤,并对基本遗传算法的交叉算子及交叉和变异概率进行了适当改进,形成改进遗传算法,并且叙述了其在电力市场下的有功安全校正中的应用。通过对一22节点网络算例进行有功安全校正计算,结果表明改进遗传算法是正确可行的,并具有一定的工程实用价值。

A method for active power security correction in power market based on genetic algorithm was put forward which means an appropriate regulation of the active power output of the generator to alleviate active power overload of transmission line with the least increase of market purchase cost.The mathematical model for carrying out active power security correction in power market was given and the basic theory and application procedures of genetic algorithm were introduced.The crossover operator and the probability of crossover and mutation of Simple Genetic Algorithm (SGA) were improved appropriately and the Improved Genetic Algorithm (IGA) was formed and its application in active power security correction in power market was expatiated.An active power security correction algorithm was carried out with a 22-node network example and the result showed that the IGA is correct and applicable in engineering practice.