【摘要】 Box算法是工程优化设计中一种重要的直接搜索算法 ,适用于无法给出目标函数显式数学表达式的优化问题求解。针对无功优化配置问题非线性、非连续性及目标函数与控制变量的隐式关系等特点 ,提出了基于 Box算法的无功优化配置模型及相应求解步骤 ,利用罚函数处理函数约束、重复迭代及采用贝斯—德拉姆洗牌与组合方法产生随机数均能改善收敛性。对 IEEE6,1 4和 30节点以及实际大规模系统的数字仿真结果表明 ,所提出的模型及算法用于实际电力系统的无功优化配置是可行的更多还原

【Abstract】 The Box algorithm is an important direct searching method for optimal engineering design, which is applicable toresolve optimization when the object function can’t be given explicitly. The allocations of reactive sources and the control ofreactive facilities create a non--linear discrete VAR optimization problem and the object is an inexplicit function of the controlvariables. So a VAR allocation optimization based on Box algorithm is presented. Techniques for improving convergence arealso discussed such as penalty functions dealing with function constrains, repeat iteration and Bays--Durham shuffle basedcombination generating random number. The IEEE 6. 14. 30 node systems and other power systems are utilized todemonstrate the validity of the proposed approach. Computational test proves the approach can be applied to real large-scalesys terns.更多还原